JP2018112721A - Map display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a map display system capable of arranging a plurality of icons in an easily recognizable manner for a user without damaging attributes that facilities or the like exist crowding on a map displayed in a wide area.SOLUTION: A map display system for displaying a map image comprises: a memory for at least temporarily storing map image and icon data; and a controller for displaying the map image by executing processing for arranging a plurality of icons on a map on the basis of the map image data and the icon data. The controller arranges each of the plurality of icons on the map such that a plane is filled.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a map display system. The map display system is used, for example, in a remote monitoring system that remotely monitors a target such as a building.

  The map display system displays a map under a predetermined scale on a display device based on map data (hereinafter referred to as map image data), and provides the system user with addresses, buildings, shops, etc. Provides search usage. In response to a request from the user, the map display system identifies a target point such as an address, and places a POI (point of interest) icon at this point. When the user moves the cursor to the POI icon, the map display system provides supplementary information to the user via the tooltip.

  By the way, when a plurality of icons are close to each other on the map, the burden on the user of confirming the target point increases due to the overlapping of the plurality of icons. Therefore, the map display device according to Patent Document 1 arranges representative icons corresponding to the plurality of icons even when the plurality of icons overlap on the map, and the facility or the like to which the icon is attached by the representative icon is displayed to the user. Easy to check.

  Patent Document 2 describes that, in order to easily grasp the state of each property regardless of the scale of the map, the property mark is added and displayed on the map after the scale is changed. . Furthermore, in Patent Document 3, when overlapping icons are randomly developed, there is no overlap of icons, but the position of the map indicated by the icons is not accurate, so that the user is given incorrect information. In order to solve this problem, it is described that the drawing pattern of the icons is developed in order of priority so that the user can easily recognize and select a desired icon.

JP 2007-206608 A JP 2009-107815 A JP 2011-99969 A

  According to the above-described conventional system, in order to make it easy for a user to recognize an icon arranged on a map displayed in a wide area, it is intended to be displayed specially on the map in such a manner that the icons do not overlap. However, in this case, there is a problem that the original attribute that the facilities to which icons are attached is densely present does not accurately convey to the user.

  The present invention provides a map display system that can arrange a plurality of icons so that a user can easily recognize them without damaging the attribute that facilities and the like are densely present on a map displayed in a wide area. Objective.

  In order to achieve the above object, the present invention provides a map display system for displaying a map image, a memory that stores map image data and icon data at least temporarily, map image data, icon data, And a controller that executes a process of arranging a plurality of icons on a map and displaying a map image based on the map, and the controller arranges each of the plurality of icons on the map so as to fill a plane. I did it.

  ADVANTAGE OF THE INVENTION According to this invention, the map display system which can arrange | position a some icon so that a user can recognize easily without impairing the attribute that facilities etc. exist densely on the map displayed on the wide area is realizable. .

It is a block diagram which shows the whole structure of the map display system by this Embodiment. It is a conceptual diagram which shows the structure of the various tables which a monitoring server hold | maintains. It is a conceptual diagram which shows the structure of the various tables which a monitoring server hold | maintains. It is a conceptual diagram which shows the structure of the various tables which a monitoring server hold | maintains. It is a conceptual diagram which shows the structure of the various tables which a management apparatus hold | maintains. It is a conceptual diagram which shows the structure of the various tables which a management apparatus hold | maintains. It is a conceptual diagram which shows the structure of the various tables which a management apparatus hold | maintains. It is a conceptual diagram which shows the structure of the various tables which a management apparatus hold | maintains. It is a conceptual diagram with which it uses for description of a map. It is a conceptual diagram with which it uses for description of a map. It is a conceptual diagram which shows the structure of a map. It is a basic diagram with which it uses for description of the polygon which shows a point. It is a basic diagram with which it uses for description of the polygon which shows a point. It is a conceptual diagram which shows how to determine the position of the polygon displayed on an outer side frame area | region. It is a flowchart which shows the process sequence of a building information acquisition process. It is a flowchart which shows the process sequence of an alarm information acquisition process. It is a flowchart which shows the process sequence of a map screen production | generation process. It is a flowchart which shows the process sequence of an icon control process. It is a flowchart which shows the process sequence of an icon detailed control process. It is a basic diagram with which it uses for description of other embodiment.

  Next, an embodiment of the present invention will be described by taking a remote monitoring system using a map display system as an example. The remote monitoring system remotely monitors objects scattered throughout the country. Examples of the object include office buildings, stores, hotels, theaters, schools, and other building infrastructure equipment (elevators, air conditioners, electricity, gas, water facilities, etc.).

  Various monitoring devices such as a fire sensor, a gas sensor, and an intrusion sensor are arranged in the building, and the management device remotely monitors the building based on a signal from the monitoring device. The management device uses a map display system to display the position and state of the building to be monitored on the map using icons. The administrator can visually recognize the existence of the building to be monitored and the monitoring state of the building by using icons arranged on the map.

  The map display system implemented in the management apparatus displays icons of monitored buildings on a wide area map in order to comprehensively represent monitored buildings scattered in a wide area. In areas where there are a plurality of buildings to be monitored in a narrow area such as a metropolitan area, icons are often displayed densely on a wide area map, and it is often impossible to avoid overlapping of a plurality of icons.

  In this case, the administrator cannot accurately grasp the existence of the monitoring target building and the state of the monitoring target building. On the other hand, if multiple icons are specially displayed, such as forcibly separating the icons so that they do not overlap, the original attribute that multiple buildings are densely present will be damaged. .

  Therefore, in order to deal with such inconveniences, the map display system is configured so that each of the plurality of icons is composed of polygons and the plurality of polygons are filled with a plane as described later. It was arranged on the map. Hereinafter, description will be given based on the drawings.

  FIG. 1 is a block diagram of the remote monitoring system 1. The remote monitoring system 1 performs integrated management of a plurality of monitored buildings 2 (monitoring sites), one or a plurality of management devices 5, and the remote monitoring system 1, and the management device 5 includes the monitored buildings 2 Monitoring server 4 for executing monitoring and management thereof, and an online map service system 7. The monitoring target building 2 is provided with a monitoring device 3 including predetermined sensors such as a smoke detection sensor, a fire detection sensor, a water leak detection sensor, and an intrusion sensor.

  The monitoring device 3, the monitoring server 4, the management device 5, and the online map service system 7 are connected to each other via a network 6 such as the Internet. The monitoring server 4 can access the source data of the online map service system 7 by using a publicly available API, and cause the management device 5 to download map image data of latitudes and longitudes within a predetermined range. The management device 5 can display a map based on the downloaded map image data.

  The monitoring server 4 includes a CPU 11 that executes integration processing for monitoring, a main memory 12 that at least temporarily stores an integration processing program, and an auxiliary storage device 13 that records a table for integration processing. . The main memory 12 is composed of, for example, a volatile semiconductor memory.

  The integrated program includes a monitoring device communication module 14, an online map service system communication module 15, and a WEB service module 16, which are realized by the CPU 11. A module is a function realized by software and / or hardware.

  The auxiliary storage device 13 is composed of, for example, a large-capacity nonvolatile storage device such as a hard disk device or an SSD (Solid State Drive), and stores and holds programs and data for a long time. In the auxiliary storage device 13, a building information table TB10, an alarm information table TB20, and a user information management table TB30 are stored as part of the database for integration processing.

  The monitoring device communication module 14 executes a function of communicating with the monitoring device 3, acquires building information and alarm information transmitted from the monitoring device 3, registers the building information in the building information table TB10, and sets the alarm information as alarm information. Record in table TB20.

  The online map service system communication module 15 executes a function of communicating with the online map service system 7 and acquires map image data from the online map service system 7.

  The WEB service module 16 executes a function of providing a WEB service to the management apparatus 5. The WEB service module 16 communicates with the management apparatus 5 by the HTTPS method. The WEB service module 16 establishes a session with the browser of the management apparatus 5 by referring to information such as the user ID and password of the management apparatus 5 registered in advance in the user information management table TB30, and processes each session. I do.

  When the session is not established, the WEB service module 16 causes the management device 5 to display a screen for inputting a user ID and a password. If login is successful from this screen, a session is established.

  The building information table TB10 is an information group for managing information on buildings to be monitored, and is configured in detail as shown in FIG. 2A. In this building information table TB10, one row record (row) corresponds to one building.

  The record in one line includes a building ID column TB11, a customer ID column TB12, a building name column TB13, an address column TB14, a latitude column TB15, a longitude column TB16, and a monitoring device number column TB17. In the building ID column TB11, an ID for uniquely identifying each building is stored.

  The customer ID column TB12 stores a customer ID that uniquely identifies the owner of the building. The building name column TB13 stores the name of the building. The address column TB14 stores the building address.

  The latitude column TB15 stores the latitude of the building, and the longitude column TB16 stores the longitude of the building. The monitoring device number column TB17 stores a monitoring device number that uniquely identifies the monitoring device 3 installed in the building. The administrator of the monitoring server 4 registers necessary information in the building information table TB10.

  The alarm information table TB20 manages alarms received from the monitoring apparatus 3 by the monitoring apparatus communication module 14, and is configured as shown in FIG. 2B in detail. One line record (row) of the alarm information table TB20 corresponds to one alarm (monitoring target event).

  One line record of the alarm information table TB20 includes an alarm ID column TB21, a building ID column TB22, an alarm occurrence date / time column TB23, an alarm recovery date / time column TB24, and an alarm content column TB25. The alarm ID column TB21 stores an alarm ID that uniquely identifies the generated alarm. Restoration means that the cause of alarm output has been eliminated.

  The building ID column TB22 stores a building ID that uniquely identifies the building that output the alarm, the alarm occurrence date / time column TB23 stores the date / time when the alarm occurred, and the alarm recovery date / time column TB24 displays the abnormal state. The date and time of restoration is stored, and the alarm content which is the content of the alarm is stored in the alarm content column TB25. Before recovery, the alarm recovery date / time column TB24 is blank.

  The user information management table TB30 is for managing a user (building management company) who operates the management apparatus 5, and is configured in detail as shown in FIG. 2C. In the user information management table TB30, one line record corresponds to one user. The user may be an individual administrator or a group of administrators.

  One line record of the user information management table TB30 includes a user ID column TB31, a user name column TB32, a customer ID column TB33, a password column TB34, and a session ID column TB35. The user ID column TB31 stores a user ID that uniquely identifies the user. A user name is stored in the user name column TB32, and a customer ID is stored in the customer ID column TB33 separately from the user ID.

  The password column TB34 stores a password when the user of the management apparatus 5 accesses the monitoring server 4, and the session ID column TB35 stores a session ID that uniquely identifies an established session.

  The management device 5 may be a personal computer, a workstation, or a mobile terminal. The management device 5 acquires building information (TB10), alarm information (TB20), map image data, and icon data via the monitoring server 4, and displays the building on the map with icons. The management device 5 executes additional processing such as changing the icon form and / or the color, for example, according to the building status (no alarm occurrence, alarm occurrence, restored).

  As shown in FIG. 1, the management device 5 includes a CPU 21 as a controller, a memory 22, and an auxiliary storage device 13. The memory 22 stores a management program.

  The management program includes a module executed by the CPU 21, and this module includes a building information acquisition module 24, an alarm information acquisition module 25, a map display module 26, an icon control module 27, and an icon detail control module 28. .

  The auxiliary storage device 23 stores a building information table TB40, an alarm information table TB50, an icon position information table TB60, and an icon alarm information determination table TB80.

  The building information acquisition module 24 acquires building information necessary for management from the building information table TB10 via the WEB service module 16, and stores the building information in the building information table TB40.

  The alarm information acquisition module 25 acquires alarm information from the alarm information table TB20 via the WEB service module 16, and stores the alarm information in the alarm information table TB50.

  The map display module 26 acquires map image data from the online map service system 7 via the WEB service module 16 and displays a map based on the map image data.

  The icon control module 27 calculates the icon position based on the building information (building position) in the building information table TB40, stores the icon position in the icon position information table TB60, and displays the icon on the map based on the icon position. Is added.

  The icon detail control module 28 calculates the specific information of the icon corresponding to the building that output the alarm based on the alarm information of the alarm information table TB50, and stores this in the icon alarm information determination table TB80 shown in FIG. 3D.

  The building information table TB40 is information on buildings managed by the management device 5, and is configured as shown in FIG. 3A. The alarm information table TB50 manages alarm information of buildings to be managed, and is configured as shown in FIG. 3B.

  The icon position information table TB60 is a table for managing the position information of icons corresponding to buildings, and is configured as shown in FIG. 3C. Here, the icons will be described in detail. FIG. 4A shows a conventional example of a map screen 400 in which a plurality of icons are arranged on a wide area map.

  The icon is arranged on the map so as to be the position of the building corresponding to the building to be managed. The icon is configured in a balloon shape having a predetermined size so as not to impair the visibility of the user.

  A plurality of icons 402A to 402C are densely displayed in a region 400A where a plurality of buildings to be managed are adjacent, and a plurality of icons 403A to 403E are densely displayed in a region 400B. When a plurality of icons are displayed in an overlapping manner, it is difficult to determine the number of icons and the positional relationship between the icons.

  Therefore, as shown in FIG. 4B, the map display system implemented in the management device 5 expands and displays a plurality of icons that have been densely displayed so as not to overlap with each other according to the theory of area filling.

The region filling may be understood as including plane filling, curved surface filling, and space filling, and FIG. 4B shows the planar filling of the map screen. Planar filling refers to an operation of filling a plane with polygonal plane figures without gaps, and the entire plane is called plane filling. FIG. 4B shows that the plane figure is an equilateral triangle.

  That is, the management device 5 displays one icon as one regular triangle instead of the conventional balloon shape. In the plane filling form, a plurality of plane figures are arranged in order without being overlapped with each other, so that the user can grasp the number of icons and the arrangement of icons in a concise and clear manner.

  In FIG. 4A, the icons 403A to 403D overlap each other, and it cannot be said that it is easy for the user to distinguish the icons, but in FIG. 4B, the icons 403A to 403D are plane-filled without overlapping. Therefore, the user can easily determine the number of icons and the arrangement of a plurality of icons.

  In FIG. 4B, reference numeral 410 denotes the position (latitude and longitude) of the icon 402A that is present in the northernmost (high latitude) area 400A, and reference numeral 412 is the icon 403A that exists in the northernmost (high latitude) area 400B. Position (latitude, longitude).

  Therefore, the plane-filling type expands or extends from one end (south direction, downward direction of the screen) from the end of the area where multiple buildings are concentrated (the position of the northernmost building). Can clearly recognize the number of buildings and the manner in which multiple buildings are adjacent. In addition, the buildings scattered independently without being adjacent to other buildings may be individually indicated by simple form (◯, etc.) icons instead of being filled with a plane.

  The map image data is composed of the number of dots in the horizontal direction (X-axis direction) of the image, the number of dots in the vertical direction (Y-axis direction), an arbitrary latitude, and an arbitrary longitude. A map image can be displayed by changing the scale value (scale) based on the image data.

  The center latitude and center longitude of the display area on the map and the maximum latitude, minimum latitude, maximum longitude and minimum longitude of the display area on the map are mounted in the map image data creation function of the online map service system 7.

  The map display module 26 can acquire the latitude and longitude information using an API published by the online map service system 7. Therefore, the map display module 26 makes full use of the map image creation function, and based on the acquired map image data, parameters for latitude, longitude, scale value, the number of dots in the horizontal direction of the image, and the number of dots in the vertical direction of the image To create and display a map image.

  The icon position information table TB60 of the management device 5 specifies the icon mode for each building, and one of the icons is a building ID column TB61, a horizontal icon coordinate column TB62, a vertical icon coordinate column TB63, an inner side. The area determination column TB64, the icon type column TB65, the icon orientation column TB66, the division column TB67, the filling number column TB68, the filling order column TB69, and the icon number column TB70 are specified.

  The horizontal icon coordinate column TB62 stores the coordinate in the horizontal direction (X-axis direction) to which the icon should be mapped in the map image, and the vertical icon coordinate column TB63 stores the icon in the vertical direction (Y-axis direction). Coordinates are stored.

  The inner area determination column TB64 indicates whether or not an icon is displayed in an inner rectangular area 31 of FIG. 5 described later when a building is displayed with an icon. “1” is assigned to the icon displayed in the inner rectangular area 31 of FIG. 5, and “2” is stored in the other icons. The above-described plane filling may be applied to an icon assigned with “1”, and plane filling may not be applied to an icon assigned with “2”.

  The icon type in the form of a polygon as an icon is stored in the icon type column TB65. In addition to the above-described triangles, there are quadrangles, hexagons, etc. as polygons as planar figures. Furthermore, there is also a distinction between the number of buildings and the correspondence between icons, such as an icon corresponding to one building and an icon corresponding to a plurality of buildings.

  The latter icon has an advantage that the display mode of a plurality of icons can be simplified even if many managed buildings are adjacent to each other. The icon type can be determined based on the form of the icon and the number of correspondence between the icon and the building. For example, the icon type as a triangle representing one building is “1”, and a triangle representing a plurality of buildings The icon type is “2”, the icon type as a rectangle representing one building is “3”, and the icon type as a rectangle representing a plurality of buildings is “4”.

  The icon direction column TB66 stores the icon direction. In order for the icon control module 27 to fill an icon in a plane, information on the direction of the icon (information on the direction of the icon) is necessary. When the icon type is a triangle, the icon control module 27 sets “1” as the icon direction when the icon direction is up and “2” as the icon direction when the icon direction is down.

  In describing the division field TB67, first, a configuration example of the map screen (FIG. 5) will be described. Reference numeral 30 denotes a map screen displayed on the monitor of the management device 5. The map screen 30 includes an inner rectangular area 31, an intermediate frame area 32, and an outer frame area 33.

  A wide area map (most part of Hokkaido) is displayed in the inner rectangular area 31. In the monitoring building dense areas 500 </ b> A to 500 </ b> D in the wide area map, a plane filling type (a collection of a plurality of icons) of a plurality of icons (planar figures: triangles) 500 is displayed. The plane filling mold is displayed in the inner area.

  An icon corresponding to a building existing at the latitude and longitude in the inner area but exceeding the inner area by plane filling is simply displayed in the intermediate frame area 32 (530). The icon indicated by 530 corresponds to one or more buildings. The intermediate frame region 32 is formed around the outside of the inner rectangular region 31 so as to have a size corresponding to one icon.

  Reference numeral 510 indicates a cursor. The hatched icon indicates the building that issued the alarm. When the user moves the cursor 510 over the icon, a tool tip 520 indicating the alarm content is displayed.

  The outer frame area 33 is an area that indicates a building icon that is not included in the latitude and longitude of the inner rectangular area 31. The outer frame area 33 is formed around the outside of the intermediate frame area 32 so as to have a size corresponding to one icon.

  When an icon is displayed in the outer frame area 33, in order to indicate the direction in which the icon exists, the outer frame area 33 is displayed on the map center using, for example, virtual two axes 540 and 550 that pass through the center of the map. On the other hand, for example, it is divided into four parts, east, west, south, and north.

  The icon 37 present in the south direction from the map center suggests that the icon exists in the south direction of Honshu, Shikoku, and Kyushu, and the icon 36 present in the west direction from the map center indicates the southwest of Honshu, Shikoku, and Kyushu. Indicates that there is an icon in the direction. Since there is no national land at the position 35 on the north side and the position 38 on the east side of Hokkaido, icons are often not displayed.

  When the user moves the cursor by relying on the icons 36 and 37, the icons and the collection of icons are sequentially developed in the inner rectangular area 31 while the map is scrolled. The icons displayed in the intermediate frame region 32 and the outer frame region 33 may be the same as or different from the icons displayed in the inner rectangular region 31.

  In addition, since the icon control module 27 maps an icon on a map, it can change the transparency of an icon so that a map image directly under the icon can be visually recognized or cannot be visually recognized by a user.

  In the division column TB67, elements that define the direction in which icons are arranged according to the above-described division are stored. “1” is north, “2” is east, “3” is south, and “4” is west. Indicates. “0” indicates that the building exists in the inner rectangular area 31. The icon control module 27 determines the division characteristic by comparing the center position of the map with the position of the building.

  The filling number column TB68 uniquely identifies a filling type in which a building icon is filled in a plane. The icon control module 27 recognizes the icon collection area and sets a filling number for each collection area.

  In FIG. 3C, buildings with building IDs “1” and “2” correspond to one triangular icon (icon type: 2). It is shown that it is filled in the filling order (TB69). When filling the icons, the order is defined by the filling order (TB69). An icon number uniquely identifying an icon is stored in the icon number TB70.

  The icon alarm information determination table TB80 is used for causing the icon control module 27 to determine whether alarm information is generated in the building corresponding to the icon. In this icon warning information determination table TB80, one record (row) corresponds to one icon number.

  An icon object ID that defines an icon display form may be associated with the icon number. An icon display form is set for each icon object ID. The icon display form includes, for example, “flashing red icon” corresponding to a building where a fire is detected, “flashing blue icon” corresponding to a building where a water leak is detected, and the like.

  Next, icons and filling of icons with a flat surface will be described in detail. As shown in FIG. 6A and FIG. 6B, there are two types of triangular icons, a type with an apex at the top (upward triangular icon) and a type with an apex at the bottom (downward triangular icon). For example, the vertical and horizontal dimensions are each composed of 2 × a dots.

  As shown in FIG. 6 (C), the upward triangle icon is the first column, and in the second column and thereafter, the upward triangle icon and the downward triangle icon are alternately filled in a plane as shown in FIG. A large triangular plane-filling mold is formed that spreads in the bottom (lower). The large triangular plane filling type is a plurality of icon groups corresponding to a plurality of adjacent buildings.

  For example, a may be 8 or 16, and the user of the management device 5 may select the value of a by operating an input device such as a mouse. The reason for using a as a unit is to fill a plurality of triangular icons in the horizontal direction as shown in FIG. The accuracy of the icon display position is a dot. When the icon control module 27 develops the icons in the vertical direction, the icons may be filled at a pitch corresponding to the height of the triangle (2a).

  FIG. 6D shows the relationship between the filling order of icons and the filling position. When the icon control module 27 fills any icon in two directions along the filling order and the filling position, it is possible to configure a flat filling type that expands downward. The order of filling the icons may be in the order of the building position (for example, in the order of increasing latitude of the building).

となる最大のｎの値を列番号として求めることができる。 The icon control module 27 assumes that the display order of triangular icons is mth,

The maximum value of n can be obtained as the column number.

Further, regarding the horizontal coordinate Xm of the apex of the _mth triangle icon, when the horizontal coordinate of the apex of the large triangle icon is X, this is calculated as follows. Note that the lower right on the map is 0, the left direction is positive, and a is the basic unit.

Also, regarding the vertical coordinate Y _m of the vertex of the _mth triangle icon, assuming that the horizontal coordinate of the vertex of the large triangle icon is Y, this is calculated as follows. Note that the lower right on the map is 0, the upper direction is positive, and a is the basic unit.

  Note that the upward triangle icon or the downward triangle icon is previously determined by the table as described above. The display order is the order in which the buildings are concentrated.

  Next, a display mode of icons corresponding to buildings in a normal state will be described. FIGS. 7A and 7B are forms corresponding to one building each of an upward triangle icon and a downward triangle icon. FIGS. 7C and 7D each include a plurality of shapes. It is a form corresponding to a building. The texture of the symbol of the building is mapped to the icon.

  FIG. 7E shows a large triangle after these icons are plane-filled. According to the large triangle, symbols corresponding to the number of objects are displayed on the respective icons, so that the user of the management device 5 can monitor the state of the monitored building that stands in forest, that is, how many buildings are relatively There is an effect that it can be recognized at a glance what kind of positional relationship it is arranged in.

  FIG. 8 illustrates the principle for determining the directionality by the above-described division. The icon control module 27 compares the position of the building not displayed as an icon in the inner area with the map center, and determines the division direction based on the angle θ of the icon position from the map center.

  If the number of divisions is 4, the division direction is “1” when the angle θ is 45 degrees or more and less than 135 degrees, an icon is displayed at the position 35 in FIG. 5, and the division is performed when the angle θ is 135 degrees or more and less than 225 degrees The icon 36 is displayed at the position in FIG. 2 with the direction “2”, and when the angle θ is not less than 225 degrees and less than 315 degrees, the division direction is “3” and the icon 37 is displayed at the position in FIG. Is 315 degrees or more and less than 45 degrees, the division direction is set to “4” and an icon is displayed at a position 38 in FIG. When the division direction is “0”, an icon is displayed in the inner rectangular area 31 or the intermediate frame area 32.

  Next, the map screen generation function implemented in the management apparatus 5 will be described. The management device 5 is equipped with a map screen generation function for generating a map screen 30 based on building information, alarm information, and map image data acquired from the monitoring server 4.

  In practice, in the case of the present embodiment, the management device 5 acquires the building information and alarm information acquired by the monitoring server 4 from the monitoring device 3 of each monitoring target building 2 via the network 6.

  Next, the management device 5 acquires the map image data acquired by the monitoring server 4 from the online map service system 7, and uses the building information and the alarm information to obtain alarm information corresponding to the position of the building in the map image data. Link.

  When the scale ratio is small and the locations of buildings are concentrated, display to indicate that one icon contains multiple buildings, or place icons to fill the plane indicate. In this case, the point indicated by the uppermost icon on the map of overlapping icons is the point indicated by the large triangle icon.

  And the management apparatus 5 displays the icon which has generate | occur | produced the warning conspicuously compared with the icon which has not generated the alarm on the map. Further, when the icon on the map where the alarm is generated is selected by the user of the management apparatus 5, the management apparatus 5 displays detailed alarm information of the building indicated by the icon.

  Next, various processes executed by the management device 5 of the remote monitoring system 1 in relation to the map screen generation function described above will be described. In the following description, the processing subject of various processes is described as a “program”. However, in practice, the process is executed by the CPU 21 of the management apparatus 5 based on the “program”.

  FIG. 9A shows a processing procedure of the building information acquisition process RT1, and FIG. 9B shows a processing procedure of the alarm information acquisition process RT2. When the session is established, the building information acquisition module 24 executes the building information acquisition process RT1, and thereafter the alarm information acquisition module 25 periodically executes the alarm information acquisition process RT2. The building information acquisition module 24 and the alarm information acquisition module 25 acquire building information and alarm information from the monitoring server 4 according to the processing procedure shown in FIG. 9A.

  In practice, when the building information acquisition module 24 starts the building information acquisition process RT1 shown in FIG. 9A, first, the building information acquisition module 24 transmits a building information acquisition request to the WEB service module 16 of the monitoring server 4 (SP11).

  When the building information acquisition request is received, the WEB service module 16 obtains the customer ID from the user ID of the management apparatus 5 that has established the session, using the user information management table TB30. The WEB service module 16 searches the building information table TB10 for a record that stores a customer ID that matches the obtained customer ID. The WEB service module 16 sorts the acquired records in descending order of latitude, and stores the building ID, building name, address, latitude, and longitude information in the session information corresponding to the session ID.

  The building information acquisition module 24 acquires the building ID, building name, address, latitude, and longitude information from the session information, stores the acquired information in the building information table TB40 (SP12), and ends the building information acquisition processing RT1. Then, the alarm information acquisition module 25 is called.

  When the alarm information acquisition module 25 starts the alarm information acquisition process RT2 shown in FIG. 9B, it first transmits an alarm information acquisition request to the WEB service module 16 of the monitoring server 4 (SP21).

  When the warning information acquisition request is received, the WEB service module 16 has information on the building ID corresponding to the connected user ID as described above. Therefore, the warning information table TB20 uses the building ID to notify the warning. Search for and retrieve records that do not contain recovery date and time information. The WEB service module 16 stores alarm ID, building ID, alarm occurrence date and time, and alarm content information in session information corresponding to the session ID.

  The alarm information acquisition module 25 acquires alarm ID, building ID, alarm occurrence date and time, and alarm content information from the session information, stores the acquired information in the alarm information table TB50 (SP22), and performs building information acquisition processing RT2. finish.

  FIG. 10 shows a processing procedure of map screen generation processing RT3 executed by the map display module 26. The map display module 26 acquires map image data from the monitoring server 4 according to the processing procedure shown in FIG.

  Actually, when the session is established and the building information acquisition process RT1 ends, or when the map display module 26 receives an operation for changing at least one of latitude and longitude on the map from the user, the map display module 26 executes the map screen generation process RT3. Start.

  First, the map display module 26 requests the WEB service module 16 of the monitoring server 4 to acquire map image data by designating the latitude and longitude of the center of the map (SP31).

  When receiving the request, the WEB service module 16 causes the online map service system communication module 15 to acquire map image data. The online map service system communication module 15 transmits the acquired map image data to the WEB service module 16. Then, the WEB service module 16 transmits the map image data acquired from the online map service system communication module 15 to the map display module 26.

  The map display module 26 acquires map image data from the online map service system communication module 15 (SP32), discards all the icons that have been generated, and uses the acquired map image data to display the screen of the management device 5. A map is displayed (SP33). At the time of this display, the map display module 26 designates the vertical length of the map image data, the horizontal length of the map image data, the center latitude, the center longitude, and the scale value.

  Subsequently, the map display module 26 deletes all records when there are records in the icon position information table TB60 (SP34). Moreover, the map display module 26 deletes all the records, when there exists a record of the icon warning information determination table TB80 (SP35).

  Subsequently, the map display module 26 generates a record of the icon position information table TB60 (SP36). Further, the map display module 26 adds the icon generated based on the icon position information table TB60 to the map, generates a record of the icon alarm information determination table TB80 (SP37), ends the map screen generation processing RT3, and performs icon control. Call module 27.

  Here, when one icon is generated, the map display module 26 generates a record of the icon alarm information determination table TB80 corresponding to the icon number of the icon.

  FIG. 11 shows a processing procedure of icon control processing RT4 executed by the icon control module 27. The icon control module 27 controls the display color of the icon and the presence / absence of blinking display according to the processing procedure shown in FIG.

  In practice, the icon control module 27 starts the icon control process RT4 when the map screen generation process RT3 ends. First, the icon control module 27 acquires one record of the icon warning information determination table TB80 in order from the top (SP41).

  Next, the icon control module 27 searches whether one or more building IDs that match the building ID stored in the building ID list column TB82 of the icon alarm information determination table TB80 are included in the alarm information table TB50, It is determined whether an alarm is generated in the building with the building ID (SP42).

  If the icon control module 27 obtains an affirmative result in this determination, it displays the icon in red, blinks the icon (SP43), and then proceeds to step SP45.

  On the other hand, if the icon control module 27 obtains a negative result in this determination, it displays the icon color in blue (SP44), and then proceeds to step SP45.

  Subsequently, the icon control module 27 determines whether or not the processing of all the records in the icon warning information determination table TB80 has been completed (SP45). If the icon control module 27 obtains a negative result in this determination, it repeats the processing from step SP41 to SP45 until the processing of all records is completed.

  On the other hand, when the icon control module 27 obtains a positive result in the determination at step SP45, it ends the icon control process RT4.

  FIG. 12 shows the procedure of the icon detail control process RT5 executed by the icon detail control module 28. The icon detail control module 28 controls the display of the detailed contents of the alarm information corresponding to the icon according to the processing procedure shown in FIG.

  In practice, when the icon detail control module 28 receives an operation of selecting a user icon in the management apparatus 5, the icon detail control module 28 starts the icon detail control process RT5.

  First, the icon detail control module 28 retrieves the icon number corresponding to the selected icon from the icon alarm information determination table TB80, and acquires the building ID of the building list ID list column TB82 of this icon number (SP51).

  Next, the icon detail control module 28 retrieves the building ID from the alarm information table TB50, and acquires the alarm occurrence date / time and the alarm content of the building ID (SP52).

  Subsequently, the icon detail control module 28 searches for the building ID from the building information table TB40, and acquires the building name of the building ID (SP53).

  Further, the icon detail control module 28 displays the building name of this building ID, the alarm occurrence date and time, and the alarm contents in a balloon (SP54), and ends the icon detail control process RT5. The icon detail control module 28 displays this balloon near the icon to be processed.

  As described above, in the remote monitoring system 1 according to the present embodiment, by arranging the polygonal icons so as to fill the plane, the positional relationship on the map is lost even when a plurality of points are concentrated on the map. It is possible to display a plurality of points without overlapping.

  Therefore, according to the remote monitoring system 1, the user of the management device 5 can easily visually recognize the points including the positional relationship on the map even when the alarm is generated at a plurality of points. Thus, an efficient response is possible.

  In the above-described embodiment, the case where the column number is obtained by the expression (1) has been described. However, the present invention is not limited to this, and the column number may be determined in advance.

  Further, in the above-described embodiment, the case where the icon direction is determined in advance has been described. However, the present invention is not limited to this, and it may be obtained using a difference number sequence.

  In the above-described embodiment, the case where one icon indicates one or a plurality of points has been described. However, the present invention is not limited to this, and a plurality of points as illustrated in FIGS. 13A to 13C are used. You may make it show one point with an icon.

  In the above-described embodiment, the shape of the icon is described as a triangle. However, the present invention is not limited to this, and as shown in FIGS. 13D and 13E, the icon shape may be a rectangle. Good. In addition, when changing the shape of an icon, you may enable a user to change arbitrarily.

  Furthermore, in the above-described embodiment, the icon shape is described as a triangle. However, the present invention is not limited to this, and the icon shape is a hexagon as shown in FIGS. 13 (F) and 13 (G). Also good.

  DESCRIPTION OF SYMBOLS 1 ... Remote monitoring system, 2 ... Monitoring object building, 3 ... Monitoring apparatus, 4 ... Monitoring server, 5 ... Management apparatus, 6 ... Network, 7 ... Online map service system, 11, 21 ... CPU, 12 ... main memory, 13, 23 ... auxiliary storage device, 14 ... monitoring device communication module, 15 ... online map service system communication module, 16 ... WEB service module, 22 ... memory, 24 ... Building information acquisition module, 25... Alarm information acquisition module, 26... Map display module, 27... Icon control module, 28.

Claims (4)

A map display system for displaying a map image,
A memory that at least temporarily stores map image data and icon data;
Based on the map image data and the icon data, a controller that executes a process of arranging a plurality of icons on a map and displays a map image;
With
The controller is
A map display system that arranges each of the plurality of icons on the map so as to fill a plane. The map display system according to claim 1, wherein the controller configures each of the plurality of icons from a polygon that can fill the plane. The controller is
A plurality of objects are present densely, the icons are assigned to the objects, and the polygons are filled with a plane when the icons are arranged on the map. The map display system according to claim 2, wherein the map display system is arranged on the map. A server that monitors each of a plurality of buildings as a monitoring target and remotely monitors via a network,
The controller is
Assigning the icon to each of the plurality of buildings as the object;
The map display system according to claim 3, wherein a display mode of the icon is changed according to a monitoring state of the building.

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