JP2017143379A - Monitoring system, monitoring method and monitoring program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve easy monitoring work at each monitoring position of a water channel.SOLUTION: The monitoring system includes a display part, a calculation part and a display processing part. The display part list-plays an image of a monitoring camera for each monitoring position of a water channel. The calculation part calculates the time required for a water level of the water channel to reach a predetermined water level on the basis of a progress of the image of the monitoring camera for each monitoring position. The display processing part displays an image of the monitoring camera in which the calculated time satisfies predetermined conditions among the list-displayed images, in a different display mode from that of any other image of the monitoring camera.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a monitoring system, a monitoring method, and a monitoring program.

  In the operation and maintenance of waterways such as sewers in local governments, in the event of a typhoon or guerrilla heavy rain, the state of the waterway is monitored. Then, the supervisor notifies the on-site worker of the response according to the condition of the water channel, and the on-site worker takes action.

  For example, in many cases, rainwater in the jurisdiction is often washed away to nearby rivers or the sea. When rainwater flows from the sewer to the river, in the case of normal rain, rainwater collected from the jurisdiction is accumulated on the rainwater main through various sewers. In addition, the end of the rainwater main line is connected to the river, and most of the rainfall flows directly into the river.

  However, for example, a river level may rise due to a typhoon or the like. At that time, for example, when the water level of the river rises higher than the rainwater main line, a gate (referred to as a lock gate) installed between the rainwater main line and the river is closed in advance to prevent backflow of water from the river. However, since the water of the rainwater main line overflows as it is, the operation of forcibly flowing water to the river through the upper part of the embankment or a pipe penetrating the embankment is performed using a pump installed on the main line.

  In order to work on gates installed in such waterways and to prepare for work, inspectors should monitor the situation at each monitoring point of waterways such as rivers and rainwater mains when there is a risk of typhoons or heavy rains. Grasp the condition of the waterway using a display device that displays sequentially.

JP 2012-141840 A JP 2009-222926 A

  However, in the above-described conventional technology, the monitoring staff checks the status of all the monitoring locations in the water channel from the display on the display device, and determines the location where the gate work or work preparation is required, so the burden on the monitoring staff is large. There is a problem. For example, when the burden on the supervisor is large, an erroneous judgment of the supervisor, such as oversight or a delay in judgment, may be induced.

  In one side, it aims at providing the monitoring system, the monitoring method, and the monitoring program which enable it to perform the monitoring operation | work of each monitoring location of a water channel easily.

  In the first plan, the monitoring system includes a display unit, a calculation unit, and a display processing unit. The display unit displays a list of monitoring camera images for each monitoring point of the waterway. A calculation part calculates time until the water level of a water channel reaches a predetermined water level based on progress of the image of a monitoring camera for every monitoring location. The display processing unit displays an image of the monitoring camera that satisfies the predetermined time for the time calculated in the list-displayed images in a display mode different from the images of the other monitoring cameras.

  According to one embodiment of the present invention, it is possible to easily perform monitoring work for each monitoring point of the water channel.

FIG. 1 is an explanatory diagram illustrating a configuration example of a monitoring system according to the embodiment. FIG. 2 is an explanatory diagram for explaining the contents of the database. FIG. 3 is an explanatory diagram illustrating a screen example of the display screen. FIG. 4 is a flowchart illustrating an example of processing relating to comparison / calculation. FIG. 5 is a flowchart illustrating an example of the display process. FIG. 6 is an explanatory diagram illustrating a screen example of the display screen. FIG. 7 is an explanatory diagram illustrating a screen example of the display screen. FIG. 8 is an explanatory diagram illustrating a screen example of the display screen. FIG. 9 is an explanatory diagram illustrating a screen example of the display screen. FIG. 10 is an explanatory diagram for explaining the transition of the display screen. FIG. 11 is an explanatory diagram for explaining the contents of the database according to the modification. FIG. 12 is a flowchart illustrating an example of display processing according to the modification. FIG. 13 is an explanatory diagram illustrating a screen example of the display screen. FIG. 14 is a block diagram illustrating an example of a hardware configuration of the information processing apparatus according to the embodiment.

  Hereinafter, a monitoring system, a monitoring method, and a monitoring program according to embodiments will be described with reference to the drawings. In the embodiment, configurations having the same functions are denoted by the same reference numerals, and redundant description is omitted. Note that the monitoring system, the monitoring method, and the monitoring program described in the following embodiments are merely examples, and do not limit the embodiments. In addition, the following embodiments may be appropriately combined within a consistent range.

  FIG. 1 is an explanatory diagram illustrating a configuration example of a monitoring system 1 according to the embodiment. As shown in FIG. 1, the monitoring system 1 accommodates a monitoring camera 10, an information processing device 20, and an output device 30.

  The monitoring camera 10 is a camera that is installed at each monitoring point of a waterway such as a sewer, a rainwater main line, and a river and shoots the monitoring point. The monitoring camera 10 and the information processing apparatus 20 are communicably connected via a communication network N. As an aspect of the communication network N, a dedicated line such as the Internet (Internet), a LAN (Local Area Network), or a VPN (Virtual Private Network) is employed.

  The monitoring camera 10 transmits image data (captured image) obtained by imaging the monitoring location of the water channel to the information processing apparatus 20 via the communication network N. As an example, the captured image transmitted from the monitoring camera 10 to the information processing apparatus 20 may be a still image captured at a predetermined interval (for example, 1 minute interval) or a moving image of a predetermined frame (for example, 15 fps).

  The information processing apparatus 20 is, for example, a personal computer (PC: Personal Computer). The information processing apparatus 20 is installed with a program for executing processing related to waterway monitoring work. By operating such a program on the processor of the information processing device 20, the information processing device 20 receives, as an example, a captured image for each monitoring location from the monitoring camera 10 and displays it on the display screen of the display 31 in the output device 30. Implement various functions related to monitoring work.

  As the output device 30, for example, a display 31 and a printer 32 are employed. The display 31 is a display device such as an LCD (Liquid Crystal Display), and performs display under the control of the information processing apparatus 20. As the printer 32, an ink jet printer, a laser printer, or the like is adopted, and printing on a medium such as paper is performed under the control of the information processing apparatus 20.

  The information processing apparatus 20 includes an input unit 21, an image processing unit 22, a memory 23, a comparison / calculation unit 24, a database 25, and a display processing unit 26.

  The input unit 21 receives data transmitted from the monitoring camera 10 via the communication network N, and acquires a captured image for each monitoring location. The input unit 21 outputs a captured image for each monitoring location acquired from the monitoring camera 10 to the image processing unit 22.

  The image processing unit 22 performs predetermined image processing on the captured image for each monitoring location. Specifically, the image processing unit 22 performs image processing such as adjusting the brightness of the captured image, adjusting the contrast, and emphasizing a specific color to make the water surface stand out so that the water level at the monitoring location can be accurately determined. Do.

  Further, the image processing unit 22 may automatically adjust the parameters of the image processing parameters according to the weather at the monitoring location or the installation status of the monitoring camera 10, or may fix the parameters.

  For example, the image processing unit 22 may determine weather such as clear sky, cloudy, and rain based on the brightness of the captured image, and may perform parameter adjustment for each determined weather. Further, the image processing unit 22 may perform image processing on a captured image from the fixed monitoring camera 10 in which the imaging direction is fixed while fixing a preset parameter.

  In addition, when the image is clear (for example, when the value relating to contrast (contrast ratio) is greater than or equal to a predetermined value), the image processing unit 22 may not perform image processing on the captured image from the input unit 21. possible.

  The image processing unit 22 sequentially stores the captured image for each monitoring location after the image processing is performed in the memory 23 with the captured time and a file name identifying the monitoring location. As a result, the still image or moving image data captured for each monitoring location is recorded in the memory 23 in order of time.

  The memory 23 is a storage device such as a RAM (Random Access Memory) or an HDD (Hard Disk Drive). The memory 23 stores the captured images for each monitoring location after the image processing by the image processing unit 22 in order of time.

  The comparison / calculation unit 24 calculates the time until the water level of the water channel at each monitoring location reaches a predetermined water level, based on the captured image for each monitoring location stored in the memory 23. Next, the comparison / calculation unit 24 outputs the calculation result to the display processing unit 26.

  Specifically, the comparison / calculation unit 24 reads, from the memory 23, the captured images recorded in order of time for each monitoring location, the captured image at the current time (t), and a predetermined time before the time (t) (t -Δt) is compared with the captured image. Based on this comparison, the comparison / calculation unit 24 creates difference data (A) indicating the difference in water level at the monitored location at a predetermined time (Δt), and calculates the change rate (v) of the water level per unit time from the created difference data. calculate. The rate of change (v) is positively or negatively signed, and is, for example, positive when the water level rises at a predetermined time (Δt), and negative when the water level drops.

  As described above, a technique for calculating the water level of the water channel from image data obtained by imaging the water channel is known, and the comparison / calculation unit 24 can calculate the water level from the captured image using a known method. Moreover, the method of creating the difference data (A) which shows the water level difference by comparing the captured images having the time difference and calculating the water level change rate (v) is an example, and is not particularly limited to this method.

  Next, the comparison / calculation unit 24 determines whether the water level rises or falls at the monitoring location based on the change rate (v) calculated for each monitoring location. For the monitoring location where the water level rises, the comparison / calculation unit 24 refers to the database 25 that manages the information for each monitoring location, obtains information on the water level (danger level) at the monitoring location, and calculates the risk level. Based on the change rate (v), the time (tup) until the water level reaches the dangerous level is calculated.

  For the monitoring location where the water level falls, the comparison / calculation unit 24 refers to the database 25, acquires information on the water level (safety level) that is normal at the monitoring location, and calculates the change rate (v) Based on the above, the time (tdown) until the water level reaches the safe level is calculated.

  The database 25 is a database that manages information for each monitoring location, and stores, for example, information on the water level that is normal at the monitoring location and information on the water level that is considered critical at the monitoring location.

  FIG. 2 is an explanatory diagram for explaining the contents of the database 25. As shown in FIG. 2, the database 25 includes, for each monitoring point, the name of the monitoring point (river A in the illustrated example), a normal or dangerous classification, a normal water level image, and a dangerous time. And an image of the water level.

  In addition, when the image of the water level at the time of danger cannot be obtained from the past observation data in the monitoring location, an image that can be assumed that the water level has risen to the structural danger level of the embankment or water channel surrounding the water channel is stored in the database 25. May be. For example, an image in which the water level at the monitoring location has been raised to a dangerous level may be created by simulation or the like and used instead.

  Similar to the difference data (A), the comparison / calculation unit 24 compares the captured image at the current time (t) with the image of the water level at the time of danger acquired from the database 25, and the water level between the current state and the danger level. Difference data (B) indicating the difference is created. Next, the comparison / calculation unit 24 calculates a time (tup) until the danger level is reached based on the difference data (B) and the change speed (v).

  Similarly, for the time (tdown) to reach the safety level, the comparison / calculation unit 24 compares the captured image at the current time (t) with the normal water level image acquired from the database 25 and Difference data (C) indicating the water level difference from the safety level is created. Next, the comparison / calculation unit 24 calculates time (tdown) until the safety level is reached based on the difference data (C) and the change rate (v).

  The display processing unit 26 reads the latest captured image from among the captured images stored in the memory 23 in time order for each monitoring location, and displays a list of the read captured images on the display 31 for each monitoring location.

  FIG. 3 is an explanatory diagram illustrating a screen example of the display screen. As shown in FIG. 3, on the display screen 300 of the display 31, images 301 to 306 that are most recently captured by the monitoring camera 10 for each monitoring location (six locations in the illustrated example) are displayed. Therefore, the monitoring staff can confirm the latest water level at each monitoring location from the images 301 to 306 on the display screen 300.

  In addition, the display processing unit 26 satisfies the predetermined time based on the time (tup or tdown) until the predetermined water level (danger level or safety level) calculated for each monitoring point is reached. The captured image of the monitoring camera 10 is displayed in a display mode different from the captured images of the other monitoring cameras 10. Thereby, the monitoring person can easily identify the captured image satisfying the predetermined time in the captured image of the monitoring camera 10 for each monitoring location displayed on the display 31 until the predetermined water level is reached. .

  For example, the display processing unit 26 displays an image of the monitoring camera 10 having the shortest time (tup) to reach the water level at the danger level among the images 301 to 306 displayed as a list on the display 31 in a display mode different from the others. indicate. In addition, the display processing unit 26 displays an image of the monitoring camera 10 having the longest time (tdown) until reaching a safe water level among the images 301 to 306 displayed as a list on the display 31 in a display mode different from the others. indicate. As a result, the monitor can detect the dangerous location (the shortest time to reach the water level at the danger level or the water level at the safety level from the difference in the display mode of the captured image for each monitoring location displayed as a list on the display 31. Can be easily grasped).

  FIG. 4 is a flowchart illustrating an example of processing relating to comparison / calculation. As shown in FIG. 4, when the processing is started, the comparison / calculation unit 24 sets the image data (i) relating to the monitoring location to be processed among the captured images stored in the memory 23 for each monitoring location. Is selected (S1).

  Next, the comparison / calculation unit 24, for the monitoring location to be processed, captures the image data (i, time t) of the captured image at the current time and the image data (i, time t−Δt) of the captured image before a predetermined time. ) Difference data (A) is created (S2).

  Next, the comparison / calculation unit 24 calculates the rate of change (v) of the water level per unit time at the monitored location to be processed from the created difference data (A) (S3). Next, the comparison / calculation unit 24 determines whether the water level has increased or decreased based on the sign of the calculated change rate (v) (S4).

  When the water level falls, the comparison / calculation unit 24 calculates difference data between the image data (i, time t) of the captured image at the current time and the normal image data in the database 25 for the monitoring location to be processed. (C) is created (S5). Next, the comparison / calculation unit 24 calculates a time tdown (i) until the safety level is reached at the monitoring location to be processed based on the change speed (v) and the difference data (C) (S6). ).

  When the water level rises, the comparison / calculation unit 24 calculates difference data between the image data (i, time t) of the captured image at the current time and the image data at the time of danger in the database 25 for the monitoring location to be processed. (B) is created (S7). Next, the comparison / calculation unit 24 calculates a time tup (i) until the danger level is reached at the monitoring location to be processed based on the change speed (v) and the difference data (B) (S8). ).

  Subsequent to S6 and S8, the comparison / calculation unit 24 stores the calculated time (tup (i) or tdown (i)) data in the memory 23 for the image data (i) of the captured image at the monitoring location to be processed. Store (S9).

  Next, the comparison / calculation unit 24 determines that all the monitoring points have been processed and ends the processing (S10). When all the monitoring points have been processed (S10: YES), the comparison / calculation unit 24 ends the process. When there is a monitoring point that has not been processed and the process is continued (S10: NO), the comparison / calculation unit 24 increments i to set an unprocessed monitoring point as a processing target (S11), and performs the process to S1. return.

  FIG. 5 is a flowchart illustrating an example of the display process. As shown in FIG. 5, when the process is started, the display processing unit 26 refers to the time (tup (i) or tdown (i)) stored in the memory 23 for each monitoring location. Next, the display processing unit 26 determines the smallest time tup (i) until reaching the danger level (S20). In other words, in S20, the monitoring point having the shortest time tup until reaching the danger level is determined among all the monitoring points. Then, iup corresponding to the monitoring location with the shortest time tup until reaching the danger level is set to iup.

  Next, the display processing unit 26 determines the largest one of the times tdown (i) until the safety level is reached (S21). That is, in S21, a monitoring point having the longest time tdown until reaching the safety level is determined among all the monitoring points. Then, i corresponding to the monitoring location with the longest time tdown until reaching the safety level is set to iddown.

  Next, the display processing unit 26 highlights the image data (iup) and (iddown) among the images 301 to 306 displayed as a list on the display 31 so that the display mode is different from the other images. (S22). Thereby, the image of the monitoring camera 10 having the shortest time (tup) to reach the water level at the dangerous level or the image of the monitoring camera 10 having the longest time (tdown) to reach the water level at the safe level is different from the others. It is highlighted in the display mode.

  6 to 9 are explanatory diagrams illustrating screen examples of the display screen 300. FIG. As illustrated in FIG. 6, the display processing unit 26 displays a list of images 301 </ b> A to 306 </ b> A captured by the monitoring camera 10 for each monitoring location on the display screen 300. Then, the display processing unit 26 selects the image 301A of the monitoring camera 10 having the shortest time to reach the water level at the dangerous level or the monitoring camera 10 having the longest time to reach the water level at the safe level among the images 301A to 306A. The image 302A is displayed with a higher emphasis than the other images. Thereby, the monitoring person can easily display the images 301A and 302A of the monitoring camera 10 at a dangerous place (where the time to reach the water level at the dangerous level is the shortest or the time to reach the water level at the safe level). Can grasp.

  Note that the display mode of highlighting is not limited to that displayed as an image having a larger size than other images. For example, as shown in FIG. 7, the display of the frame of the image 302 of the monitoring camera 10 that takes the shortest time to reach the water level at the dangerous level or the image 306 of the monitoring camera 10 that takes the longest time to reach the water level at the safe level. May be an emphasis frame 307 different from other images. As the emphasis frame 307, an image displayed thicker than other image frames, an image displayed with a different color, or the like can be used.

  Further, as shown in FIG. 8, the image of the monitoring person is displayed in the image 302 of the monitoring camera 10 that takes the shortest time to reach the water level of the dangerous level or the image 306 of the monitoring camera 10 that takes the longest time to reach the water level of the safe level. An icon image 308 for drawing attention may be given.

  Further, as shown in FIG. 9, the display processing unit 26 determines the time (tup () until reaching the danger level or the safety level calculated for each monitoring location for the images 301 to 306 of the monitoring camera 10 for each monitoring location. The time display 309 may be performed by reading i) or tdown (i)). At this time, the display processing unit 26 changes the display mode (for example, color) in the time display 309 at the time tup (i) until reaching the water level at the dangerous level or the time tdown (i) until reaching the water level at the safe level. May be. Thereby, the monitoring person can easily know the time to reach the danger level or the safety level for each monitoring point.

  In addition, the display processing unit 26 may change the display mode (the degree of highlighting) according to the length of time until reaching the water level at the danger level or the time until reaching the water level at the safety level. For example, the display processing unit 26 emphasizes as the time to reach the water level at the dangerous level (tup (i)) becomes shorter or the time to reach the water level at the safe level (tdown (i)) becomes longer. The degree of display may be increased.

  FIG. 10 is an explanatory diagram for explaining the transition of the display screen 300. As shown in FIG. 10, the display processing unit 26 has a short time (tup (i)) until the image 301A of the monitoring camera 10 having the shortest time to reach the water level at the danger level reaches the water level at the danger level. The display is larger. Further, the display processing unit 26 displays the image 302A of the monitoring camera 10 having the longest time to reach the safe water level as the time to reach the safe water level (tdown (i)) increases. As a result, when the degree of danger increases with time (the time to reach the water level at the dangerous level becomes shorter or the time to reach the water level at the safe level becomes longer), the image 301B and 302B are emphasized more greatly. Will be displayed. Therefore, the monitor can easily recognize that the degree of risk is increasing. Note that the display mode change according to the length of time may be applied not only to the size of the image described above but also to the thickness of the frame, the hue, and the like.

(Modification)
In the waterway monitoring work, for example, it is important to check the monitoring location near the gate on the rainwater main line and the location related to the monitoring location (for example, the monitoring location on the river side connected to the gate). In the modified example, a configuration that facilitates the monitoring work of the related part as well as the monitoring part is illustrated.

  FIG. 11 is an explanatory diagram for explaining the contents of the database 25 according to the modification. As shown in FIG. 11, the database 25 according to the modified example is configured to include information on related locations in the information for each monitored location. For example, the monitoring location “river A” has information on “rainwater main line A” as information on related locations. Thereby, by referring to the database 25, it is possible to acquire information on related parts related to the monitored part.

  FIG. 12 is a flowchart illustrating an example of display processing according to the modification. As shown in FIG. 12, the display processing unit 26 refers to the database 25 among the images 301 to 306 displayed in a list on the display 31 after the above-described S20 to S22, and displays image data (iup), (iddown). ) Is selected and highlighted (S23). As a result, the image of the monitoring camera 10 at the relevant location related to the monitoring location of the monitoring camera 10 having the shortest time to reach the water level at the dangerous level and the monitoring location of the monitoring camera 10 having the longest time to reach the water level at the safe level is obtained. It will be highlighted.

  FIG. 13 is an explanatory diagram illustrating a screen example of the display screen 300. As shown in FIG. 13, the display processing unit 26 displays the image 301C of the monitoring camera 10 having the shortest time to reach the water level at the dangerous level or the image 302C of the monitoring camera 10 having the longest time to reach the water level at the safe level. Is displayed with a larger emphasis than the images 303A and 306A. Then, the display processing unit 26 displays the image 304C of the monitoring camera 10 at the related location related to the monitoring location of the image 301C with a higher emphasis than the images 303A and 306A next to the image 301C. In addition, the display processing unit 26 displays the image 305C of the monitoring camera 10 at a related location related to the monitoring location of the image 302C with a higher emphasis than the images 303A and 306A next to the image 302C. As a result, the monitor can easily grasp the images 301C and 302C of the monitoring camera 10 at the dangerous location and the images 304C and 305C of the monitoring camera 10 at the related location related to the dangerous location.

  As described above, the monitoring system 1 displays a list of images of the monitoring camera 10 for each monitoring point of the water channel on the display 31. Moreover, the information processing apparatus 20 of the monitoring system 1 calculates the time until the water level of the water channel reaches a predetermined water level based on the progress of the captured image of the monitoring camera 10 for each monitoring location. In addition, the information processing apparatus 20 displays the captured image of the monitoring camera 10 that satisfies the predetermined time for the calculated time among the captured images displayed in a list on the display 31 as a display mode different from the images of the other monitoring cameras 10. Is displayed.

  For example, the information processing device 20 calculates the time until the water level reaches a dangerous level at a monitoring location where the water level rises. Then, the information processing apparatus 20 displays the image of the monitoring camera 10 having the shortest time until reaching the water level at the danger level among the captured images displayed as a list on the display 31 in a display mode different from the others.

  Further, the information processing device 20 calculates the time until the water level reaches a safe level at the monitoring location where the water level falls. Then, the information processing apparatus 20 displays the image of the monitoring camera 10 having the longest time to reach the safe water level among the captured images displayed as a list on the display 31 in a display mode different from the others.

  For this reason, the monitoring person can detect the dangerous point (the time until reaching the water level at the danger level is shortest or the water level at the safety level from the difference in the display mode of the captured image for each monitoring place displayed in a list on the display 31. Can be easily grasped). Therefore, the information processing apparatus 20 is effective in preventing oversight of dangerous locations and delays in judgment, and enables easy monitoring of each monitored location in the water channel.

  It should be noted that each component of each illustrated apparatus does not necessarily have to be physically configured as illustrated. In other words, the specific form of distribution / integration of each device is not limited to that shown in the figure, and all or a part thereof may be functionally or physically distributed or arbitrarily distributed in arbitrary units according to various loads or usage conditions. Can be integrated and configured.

  For example, in the present embodiment, the configuration is such that the image of the monitoring camera 10 having the shortest time to reach the water level at the dangerous level or the image of the monitoring camera 10 having the longest time to reach the water level at the safe level is highlighted. The highlighting condition is not limited to the above. For example, an image of the monitoring camera 10 in which the time until reaching the water level at the dangerous level is not more than a predetermined threshold value may be highlighted. In addition, an image of the monitoring camera 10 in which the time until reaching the water level at the safe level is equal to or more than a predetermined threshold may be highlighted. Moreover, you may highlight the image of the some monitoring camera 10 which satisfy | fills said conditions. Further, when highlighting images of a plurality of surveillance cameras 10, the degree of highlighting of each image (image is determined depending on the amount of time until reaching the water level at the danger level or the time until reaching the water level at the safety level. Size, color, etc.) may be changed.

  Various processing functions performed by the information processing apparatus 20 are executed entirely or arbitrarily on a CPU (Central Processing Unit) (or a microcomputer such as an MPU or MCU (Micro Controller Unit)). It may be. In addition, various processing functions may be executed in whole or in any part on a program that is analyzed and executed by a CPU (or a microcomputer such as an MPU or MCU) or hardware based on wired logic. Needless to say, it is good.

  By the way, the various processes described in the above embodiments can be realized by executing a program prepared in advance by a computer. Therefore, in the following, an example of a computer (hardware) that executes a program having the same function as in the above embodiment will be described. FIG. 14 is a block diagram illustrating an example of a hardware configuration of the information processing apparatus 20 according to the embodiment.

  As illustrated in FIG. 14, the information processing apparatus 20 includes a CPU 101 that executes various arithmetic processes, an input device 102 that receives data input, a monitor 103, and a speaker 104. In addition, the information processing apparatus 20 includes a medium reading device 105 that reads a program and the like from a storage medium, an interface device 106 that is connected to various devices, and a communication device 107 that is connected to an external device by wire or wirelessly. Have. Further, the information processing apparatus 20 includes a RAM 108 that temporarily stores various types of information and a hard disk device 109. Each unit (101 to 109) in the information processing apparatus 20 is connected to the bus 110.

  The hard disk device 109 stores a program 111 for executing various processes in the input unit 21, the image processing unit 22, the comparison / calculation unit 24, and the display processing unit 26 described in the above embodiment. The hard disk device 109 stores various data 112 (such as the database 25) that the program 111 refers to. For example, the input device 102 receives input of operation information from an operator (monitor) of the information processing device 20. The monitor 103 displays various screens operated by the operator, for example. The interface device 106 is connected to, for example, a printing device. The communication device 107 is connected to a communication network such as a LAN (Local Area Network), and exchanges various types of information with an external device via the communication network.

  The CPU 101 reads out the program 111 stored in the hard disk device 109, develops it in the RAM 108, and executes it to perform various processes. Note that the program 111 may not be stored in the hard disk device 109. For example, the program 111 stored in a storage medium that can be read by the information processing apparatus 20 may be read and executed. The storage medium readable by the information processing apparatus 20 corresponds to, for example, a portable recording medium such as a CD-ROM, a DVD disk, a USB (Universal Serial Bus) memory, a semiconductor memory such as a flash memory, a hard disk drive, and the like. Alternatively, the program 111 may be stored in a device connected to a public line, the Internet, a LAN, or the like, and the information processing device 20 may read and execute the program 111 therefrom.

DESCRIPTION OF SYMBOLS 1 ... Surveillance system 10 ... Surveillance camera 20 ... Information processing apparatus 21 ... Input part 22 ... Image processing part 23 ... Memory 24 ... Comparison / calculation part 25 ... Database 26 ... Display processing part 30 ... Output device 31 ... Display 32 ... Printer 101 ... CPU
111 ... Program 112 ... Various data 300 ... Display screens 301-306 ... Image 307 ... Emphasis frame 308 ... Icon image 309 ... Time display N ... Communication network

Claims (9)

A display unit that displays a list of images of surveillance cameras for each monitoring point of the waterway
For each of the monitoring locations, a calculation unit that calculates the time until the water level of the water channel reaches a predetermined water level based on the progress of the image of the monitoring camera;
A display processing unit configured to display an image of a monitoring camera satisfying a predetermined time among the images displayed in the list in a display mode different from images of other monitoring cameras. Monitoring system. The calculation unit calculates a first time until the first water level is reached when the water level rises or a second time until the second water level is reached when the water level is lowered,
The display processing unit performs another monitoring on the image of the monitoring camera with the shortest calculated first time or the image of the monitoring camera with the longest calculated second time among the images displayed in the list. The monitoring system according to claim 1, wherein the display is performed in a display mode different from the image of the camera. The monitoring system according to claim 1, wherein the display processing unit displays an image of a monitoring camera that satisfies the predetermined condition larger than an image of another monitoring camera. The monitoring system according to claim 1, wherein the display processing unit displays a frame of an image of a monitoring camera that satisfies the predetermined condition in a display mode different from a frame of an image of another monitoring camera. . 5. The display processing unit according to claim 1, further comprising: changing a display mode of an image of the monitoring camera that satisfies the predetermined condition according to the calculated length of time. The monitoring system described in. The monitoring system according to any one of claims 1 to 5, wherein the display processing unit further displays the calculated time for each of the images displayed in the list. The display processing unit further displays an image of a monitoring camera related to the image of the monitoring camera that satisfies the predetermined condition in a display mode different from the images of other monitoring cameras. The monitoring system according to any one of the above. Computer
Display a list of monitoring camera images for each monitoring point of the waterway,
For each monitoring location, calculate the time until the water level of the water channel reaches a predetermined water level based on the progress of the image of the monitoring camera,
A monitoring method comprising: executing processing for displaying an image of a monitoring camera that satisfies a predetermined time among the images displayed in a list that satisfies a predetermined condition as compared with an image of another monitoring camera. . On the computer,
Display a list of monitoring camera images for each monitoring point of the waterway,
For each monitoring location, calculate the time until the water level of the water channel reaches a predetermined water level based on the progress of the image of the monitoring camera,
A monitoring program for executing processing for displaying an image of a monitoring camera that satisfies a predetermined time among the images displayed in a list that satisfies a predetermined condition as compared with an image of another monitoring camera. .

Images