WO2018176206A1

WO2018176206A1 - Spatial display method and apparatus for monitoring device

Info

Publication number: WO2018176206A1
Application number: PCT/CN2017/078369
Authority: WO
Inventors: 彭志强; 孙艳峥; 谭喆
Original assignee: 深圳中兴力维技术有限公司
Priority date: 2017-03-28
Filing date: 2017-03-28
Publication date: 2018-10-04
Also published as: CN108369602B; CN108369602A

Abstract

Provided are a spatial display method and apparatus for a monitoring device, which belong to the technical field of monitoring and display. The method comprises: clipping and displaying a current interface where a target monitoring device is located on a screen, and generating a clipped picture; in the clipped picture, calculating location coordinates of the target monitoring device; calculating position coordinates of the target monitoring device relative to the screen by means of operating the clipped picture and the location coordinates; and according to a route generated by a map file and a screen line drawn by means of the operation of an input device, calculating position coordinates of the target monitoring device relative to the clipped picture so as to display the geographical position of the target monitoring device in a space. The spatial display method and apparatus for a monitoring device in the present invention can accurately display a spatial position of a device unit, and, following the operation of a mouse, smoothly display operations, such as travelling, zooming in and zooming out, and can reduce the difficulty and cost of erecting a GIS monitoring system.

Description

Technical field

[0001] The present invention relates to the field of monitoring display technologies, and in particular, to a spatial display method and apparatus for a monitoring device.

[0002] In the surveillance industry, geospatial information of equipment is usually through geographic information systems (Geography

Information System, GIS) is displayed intuitively. GIS-like data sources mainly include control measurement, measured data, existing paper map digitization, existing spatial data files or databases, remote sensing images, and statistical data.

[0003] At present, there are two main ways for GIS to be applied in the monitoring platform, one is to use such as GoogleMap.

MapABC, MapBar, SougouMap and other map service application programming interface (API); the other is to purchase or obtain the required data from other channels, based on the data, using a third-party GIS based platform to achieve application. For the first implementation, online networking is required; the second implementation enables higher-level applications, but there are more basic data sources, plus different standards and large amounts of data, which are integrated into the same base map. The process of processing and integration requires a considerable price. In addition, since many parks or buildings have no geographical measurement data, only internal planning drawings or design drawings, it is difficult to directly see the geographical location of the monitoring equipment in the space.

technical problem

[0004] The main object of the present invention is to provide a space display method and device for a monitoring device, which can realize the linkage operation of the plan map, and provide a solution for the problem that the user who cannot set up the GIS can visually display the device.

Technical solution

[0005] In order to achieve the above object, the present invention provides a spatial display method of a monitoring device, the method comprising: cropping and displaying a current interface of a target monitoring device at a screen, and generating a cropped image; Calculating a positioning coordinate of the target monitoring device in the cut image; calculating a position coordinate of the target monitoring device relative to the screen by operating the cropped image and the positioning coordinate; a line generated according to the map file, and an input device The operation draws the screen line, and calculates the position coordinates of the target monitoring device relative to the cropped image to display the geographical location of the target monitoring device in the space.

[0006] Optionally, before the cropping and displaying the current interface where the target monitoring device is located, and generating the cropped image, the method further includes: importing the map file; searching for a target from the map file Picture, the target picture contains a target monitoring device.

[0007] Optionally, the cropping and displaying the current interface of the target monitoring device at the screen, and generating the cropped image, includes: acquiring a zoom level of the target image, and a center point relative coordinate of the target image; Level, calculating a size of a rectangular display frame of the current screen; cropping the target image according to the size of the rectangular display frame at a relative coordinate position of a center point of the target image to generate a cropped image; copying the cropped image, And copy the copy to the current interface.

[0008] Optionally, the location coordinates of the target monitoring device relative to the screen and the location coordinates of the target monitoring device relative to the cropped image conform to the following formula:

[0009] xzoom = ViewSize.Width÷CurrImageSize.Width;

[0010] yzoom = ViewSize.Height÷CurrImageSize.Height;

[0011] Location (X , Y) = (layerLocation.X - imageLocation.X) x

Xzoom, (layerLocation.Y-imageLocation.Y)xyzoom;

[0012] wherein, ViewSize is the size of the display area, CurrlmageSize is the size of the cropped picture, Locatio η (Χ, Υ) is the position coordinate of the target monitoring device relative to the screen, and imageLocation (X, Y) is the upper left corner of the cropped picture. Coordinate, layerLocation (X , Y) is the coordinates of the target monitoring device relative to the image

[0013] Optionally, the method further includes: responding to the service operation instruction of the user end, and feeding back the operation result to the interface of the screen.

[0014] In addition, in order to achieve the above object, the present invention further provides a space display device for a monitoring device, the device comprising: a picture cropping display module, configured to crop and display a current interface of the target monitoring device at the screen, and Generating a cropped image; a first calculating module, configured to calculate a positioning coordinate of the target monitoring device in the cropped image; a second calculating module, configured to operate the cropped image, And the positioning coordinates, calculating a position coordinate of the target monitoring device relative to the screen; a third calculating module, configured to calculate a line corresponding to the map file and a screen line drawn by operation of the input device, and calculate the relative target monitoring device The position coordinates of the cropped picture are displayed to show the geographical location of the target monitoring device in space.

[0015] Optionally, the device further includes: an importing module, configured to import the map file; a picture search module, configured to search for a target image from the map file, where the target image includes a target monitoring device

[0016] Optionally, the picture cropping display module includes: an acquiring unit, configured to acquire a zoom level of the target image, and a center point relative coordinate of the target image; and a calculating unit, configured to calculate a current screen according to the zoom level The rectangle displays the size of the frame; the cropping unit is configured to crop the target image according to the size of the rectangular display frame at a relative coordinate position of the center point of the target image to generate a cropped image; the display unit is set to be copied The cropped picture is displayed and the copied copy is displayed to the current interface.

[0017] Optionally, the position coordinate of the target monitoring device relative to the screen calculated by the second calculating unit and the position coordinate of the target monitoring device calculated by the third calculating unit with respect to the cropped picture meet the following Formula:

[0018] xzoom = ViewSize.Width÷CurrImageSize.Width;

[0019] yzoom = ViewSize.Height÷CurrImageSize.Height;

[0020] Location (X , Y) = (layerLocation.X - imageLocation.X) x

Xzoom, (layerLocation.Y-imageLocation.Y)xyzoom;

[0021] wherein, ViewSize is the size of the display area, CurrlmageSize is the size of the cropped picture, Locatio η (Χ, Υ) is the position coordinate of the target monitoring device relative to the screen, and imageLocation (X, Y) is the upper left corner of the cropped picture. Coordinate, layerLocation (X , Y) is the coordinates of the target monitoring device relative to the image

[0022] Optionally, the device further includes: an execution module, configured to respond to the service operation instruction of the user end, and feed back the operation result to the interface of the screen.

Advantageous effects of the invention

Beneficial effect [0023] The space display method and device of the monitoring device proposed by the present invention, by operating a target image, cropping and displaying the current interface of the target monitoring device at the screen to generate a cropped image, and calculating the positioning of the target monitoring device in the cropped image Coordinates, calculate the position coordinates of the target monitoring device relative to the screen and the position coordinates of the relative cropped image according to the operation of cropping the image and the positioning coordinates, to display the geographical position of the target monitoring device in space, accurately display the spatial position of the device unit, and follow the mouse Smooth display of roaming, zooming in and zooming out, and reducing the difficulty of GIS monitoring system and the cost of erection

Brief description of the drawing

DRAWINGS

1 is a schematic flowchart of a spatial display method of a monitoring device according to a preferred embodiment of the present invention;

2 is a schematic diagram of a sub-flow of a spatial display device of a monitoring device according to a preferred embodiment of the present invention; [0026] FIG. 3 is a block diagram of a spatial display device of a monitoring device according to a preferred embodiment of the present invention;

4 is a block diagram of a picture cropping display module of FIG. 3.

[0028] The implementation, functional features, and advantages of the present invention will be further described with reference to the accompanying drawings.

Embodiments of the invention

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

[0030] FIG. 1 is a schematic flowchart of a spatial display method of a monitoring device according to a preferred embodiment of the present invention. The method includes the following steps:

[0031] Step 110: Import a map file.

[0032] Specifically, the map file in this embodiment includes a park plan map, a building construction map, or a satellite image map.

[0033] Optionally, before importing the map file, the local file may be first searched for the presence of the required map file. If not, the process proceeds to step 110. If found, step 110 may be omitted.

[0034] Step 120: Find a target image from the map file, where the target image includes a target monitoring device. [0035] Optionally, according to the operation instruction, performing corresponding operations on the map file to find the target monitoring device. Operation instructions include: operations such as zooming in, zooming out, and roaming.

[0036] Step 130: When the target picture is operated, crop and display the current interface where the target monitoring device is located, and generate a cropped picture.

[0037] Specifically, referring to FIG. 2, step 130 further includes:

[0038] Step 210: Acquire a zoom level of the target picture, and a center point relative coordinate of the target picture.

[0039] Specifically, the zoom level in the operation instruction is acquired according to the scroll direction of the input device. Specifically, the size of the zoom level (ZoomLevel) is calculated using equation (2).

[0040] N=Mousewheel/120 Formula (1)

[0041] ZoomLevel=N>0?l. lnxZoomLevel: ZoomLevel÷l. In Formula (2)

[0042] wherein, the Monsewheel is a mouse wheel value. If the mouse wheel is scrolling in the first direction, the wheel value is a positive number, and N is a positive number; if the mouse wheel is scrolled in a second direction opposite to the first direction, the wheel value is a negative number. N is a negative number. That is, when the scroll wheel is in the forward direction, the zoom level is equal to the current zoom level multiplied by 1.1 to the Nth power. When the scroll wheel is in the negative direction, the zoom level is equal to the current zoom level divided by 1.1 to the Nth power.

[0043] Step 220: Calculate a size of a rectangular display frame of the current screen according to the zoom level.

[0044] Specifically, the size of the rectangular display frame (CurrlmageSize) is calculated by the formula (3).

[0045] CurrImageSize=(lmgSrcSize.X÷ZoomLevel , ImgSrc Size . Y÷ZoomLe ve ) Formula

(3)

[0046] wherein, ZoomLevel is the zoom level under the current operation, and ImgSrcSize is the imported picture size.

[0047] Step 230: Crop the target picture according to the size of the rectangular display frame at a center point relative coordinate position of the target picture to generate a cropped picture.

[0048] Specifically, if the first cropped picture is generated only according to the rectangular display frame, the size of the first cropped picture is equal to the size of the rectangular display frame. If the first cropped image is cropped to generate a second cropped image, the size of the second cropped image (rectangle) is calculated using equation (6).

[0049] imageLocation.X = (Oldlmage.Width - CurrlmageSize.Width) ÷ 2 +

imageLocation.X formula (4) [0050] imageLocation.Y = (Oldlmage.Height - CurrlmageSize.Height) ÷ 2 + imageLocation.Y Equation (5)

[0051] rectangle = (imageLocation, CurrlmageSize) formula (6)

[0052] wherein, Oldlmage is the size of the first cropped picture, CurrlmageSize is the size of the current cropped area, and locationPoint is the upper left corner coordinate of the current cropped area.

[0053] Step 240: Copy the cropped picture, and display the copied copy to the current interface.

[0054] Step 140: Calculate, in the cropped picture, positioning coordinates of the target monitoring device.

[0055] Specifically, according to the zoom level of the picture and the relative coordinates of the center point, the positioning coordinates of the position where the target monitoring device is located are calculated, and the coordinates are saved to the database.

[0056] Further, before the positioning coordinates are saved together to the database, the icons, names, and icons that the target monitoring device displays on the map are configured to be displayed.

[0057] Further, when the device is located in the building, the target monitoring device is positioned according to the building switching plan.

[0058] Step 150: Calculate position coordinates of the target monitoring device relative to the screen by operating the cropped picture and the positioning coordinates.

[0059] Specifically, by zooming in, zooming out, etc., the position of the target monitoring device on the screen is moved, and the position coordinates of the target monitoring device relative to the screen are calculated according to the positioning coordinates.

[0060] More specifically, the positional coordinates of the target monitoring device relative to the screen are calculated using equation (9).

[0061] xzoom = ViewSize.Width÷CurrImageSize.Width Formula (7)

[0062] yzoom = ViewSize.Height÷CurrImageSize.Height Formula (8)

[0063] Location (X , Y) = (layerLocation.X - imageLocation.X) x xzoom,

(layerLocation. Y-imageLocation.Y)xyzoom formula (9)

[0064] wherein, ViewSize is the size of the display area, CurrlmageSize is the size of the cropped picture, imageL ocation is the upper left coordinate of the cropped picture, and layerLocation is the coordinate of the target monitoring device relative to the picture.

[0065] Step 160: Calculate, according to the line generated by the map file and the screen line drawn by the operation of the input device, location coordinates of the target monitoring device relative to the cropped image, to display the target monitoring device in space. Geographic location. [0066] Specifically, the position coordinate layerLocation (X , Y) of the target monitoring device relative to the cropped picture may be calculated by using formula (10).

[0067] layerLocation (X , Υ) = (location.X ÷ xzoom + imageLocation.X , location.Y ÷ yzoom + imageLocation.Y) Formula (10)

[0068] wherein, the location is the position coordinate of the relative screen, and the imageLocation is the coordinate of the upper left corner of the cropped image.

[0069] In this embodiment, the input device may be a mouse.

[0070] For example, when performing patrol route planning, guard route planning, and the like, the screen line is drawn by the operation of the mouse, and the point set is converted into a relative cropped picture according to the set of the line points and by calculating the relative cropping picture coordinates of the monitoring device. A collection of coordinates that stores the line to the database.

[0071] When it comes to spatial computing services, such as the closest monitoring point, the base space computing unit can perform distance operations according to relative picture coordinates. Under the current zoom level and crop position, relative image coordinates are calculated, where layerLocation is the device relative icon coordinate and location is relative to the display area screen coordinates. The calculation method is as follows:

[0072] pointx = location.X I xzoom + imageLocation.X;

[0073] pointy = location.Y I yzoom + imageLocation.Y.

[0074] Step 170: Respond to the service operation instruction of the user end, and feed back the operation result to the interface of the screen.

[0075] The spatial display method of the monitoring device provided by the embodiment combines the target related to the hollowing out in the security field according to the relative picture coordinates to form a GIS map element including the graphic object and the attribute, and the data layer is The form is incorporated into the spatial database for unified management. It can contain one or more security-specific business layers, while a layer contains a series of features, and a feature represents a target, consisting of a graphic object and a property record. Graphic objects are usually composed of basic points (such as cameras), lines (such as vehicle running tracks), and faces (switching maps). The attribute table stores auxiliary information of the target (such as camera number, name, type, and other attributes). The graphic object and the attribute table record line are associated by a unique identification number, thereby realizing mutual check of the spatial information and the attribute table, and the map displays different device pictures to display different states of the device, such as a door lock, a camera alarm.

[0076] Example 1, the camera in the point type service interface is selected, and the camera is blinked by clicking or double clicking the camera. [0077] Example 2, the line of the vehicle running track in the line type service is selected, and the selected line will produce a color change.

[0078] Example 3: Select a building map in the face business, and the selected map will switch.

[0079] Example 4, when it comes to spatial computing-like services, such as the closest monitoring point, the distance operation can be performed according to the relative cropped picture coordinates.

[0080] The spatial display method of the monitoring device of the embodiment, by operating the target image, cropping and displaying the current interface of the target monitoring device at the screen to generate a cropped image, and calculating the positioning coordinates of the target monitoring device in the cropped image Calculating the position coordinates of the target monitoring device relative to the screen and the position coordinates of the relative cropped image according to the operation of cropping the image and the positioning coordinates, so as to display the geographical position of the target monitoring device in space, thereby accurately displaying the spatial position of the device unit, and following the mouse The operation smoothly displays the roaming, zooming in and zooming out operations, and can reduce the difficulty of erecting the GIS monitoring system and the cost of erection.

[0081] Referring to FIG. 3, another preferred embodiment of the present invention further provides a space display device for a monitoring device, where the device includes:

[0082] The import module 310 is set to import a map file.

[0083] Specifically, the map file in this embodiment includes a park plan map, a building construction map, or a satellite image map.

[0084] Optionally, before the importing module 310 imports the map file, the local file may be searched for whether the required map file exists. If not, the import module 310 is triggered. If the search module is found, the import module is not triggered. 310.

[0085] The picture search module 320 is configured to search for a target picture from the map file, where the target picture includes a target monitoring device.

[0086] Optionally, according to the operation instruction, the picture search module 320 performs corresponding operations on the map file to find the target monitoring device. Operation instructions include: operations such as zooming in, zooming out, and roaming.

[0087] The picture cropping display module 330 is configured to, when the target picture is operated, crop and display the current interface where the target monitoring device is located, and generate a cropped picture.

[0088] Specifically, referring to FIG. 4, the picture cropping display module 330 further includes:

[0089] The obtaining unit 410 is configured to acquire a zoom level of the target picture and a center point relative coordinate of the target picture.

[0090] Specifically, the obtaining unit 410 acquires the zoom level in the operation instruction according to the scroll direction of the input device. Specifically, the size of the zoom level (ZoomLevel) is calculated using equation (2).

[0091] N=Mousewheel/120 Formula (1)

[0092] ZoomLevel=N>0?l. lnxZoomLevel: ZoomLevel÷l. In Formula (2)

[0093] wherein, the Monsewheel is a mouse wheel value. If the mouse wheel is scrolling in the first direction, the wheel value is a positive number, and N is a positive number; if the mouse wheel is scrolled in a second direction opposite to the first direction, the wheel value is a negative number. N is a negative number. That is, when the scroll wheel is in the forward direction, the zoom level is equal to the current zoom level multiplied by 1.1 to the Nth power. When the scroll wheel is in the negative direction, the zoom level is equal to the current zoom level divided by 1.1 to the Nth power.

[0094] The calculating unit 420 is configured to calculate a size of a rectangular display frame of the current screen according to the zoom level

[0095] Specifically, the size of the rectangular display frame (CurrlmageSize) is calculated using the formula (3).

[0096] CurrImageSize=(lmgSrcSize.X÷ZoomLevel , ImgSrc Size . Y÷ZoomLe ve ) Formula

(3)

[0097] wherein, ZoomLevel is the zoom level under the current operation, and ImgSrcSize is the imported picture size.

[0098] The cropping unit 430 is configured to crop the target image according to the size of the rectangular display frame at a center point relative coordinate position of the target picture to generate a cropped picture.

[0099] Specifically, if the first cropped picture is generated only in accordance with the rectangular display frame, the cropping unit 430 first crops the size of the image to be equal to the size of the rectangular display frame. If the first cropped picture is cropped to generate the second cropped picture, the size of the second cropped picture (rectangle) of the cropping unit 430 is calculated by the formula (6).

[0100] imageLocation.X = (Oldlmage.Width - CurrlmageSize.Width) ÷ 2 +

imageLocation.X formula (4)

[0101] imageLocation.Y = (Oldlmage.Height - CurrlmageSize.Height) ÷ 2 +

imageLocation.Y formula (5)

[0102] rectangle = (imageLocation, CurrlmageSize) formula (6)

[0103] wherein, Oldlmage is the size of the first cropped picture, CurrlmageSize is the size of the current cropped area, and locationPoint is the upper left corner coordinate of the current cropped area.

[0104] The display unit 440 is configured to copy the cropped picture and display the copied copy to the current interface. [0105] The first computing device 340 is configured to calculate positioning coordinates of the target monitoring device in the cropped picture.

[0106] Specifically, based on the zoom level of the picture and the relative coordinates of the center point, the first computing device 340 calculates the positioning coordinates of the position to which the target monitoring device is located, and saves the coordinates to the database.

[0107] Further, before the positioning coordinates are saved together to the database, the icons, names, and icons that the target monitoring device displays on the map are configured to be displayed.

[0108] Further, when the device is located in the building, the first computing device 340 locates the target monitoring device according to the building switching plan.

[0109] The second computing device 350 is configured to calculate a position coordinate of the target monitoring device relative to the screen by operating the cropped picture and the positioning coordinates.

[0110] Specifically, by zooming in, zooming out, etc., the position of the target monitoring device on the screen is moved, and according to the positioning coordinates, the second computing device 350 calculates the position coordinate of the target monitoring device relative to the screen. .

[0111] More specifically, the positional coordinates of the target monitoring device with respect to the screen are calculated using Equation (9).

[0112] xzoom = ViewSize.Width÷CurrImageSize.Width Formula (7)

[0113] yzoom = ViewSize.Height÷CurrImageSize.Height Formula (8)

[0114] Location (X , Y) = (layerLocation.X - imageLocation.X) x

Xzoom, (layerLocation.Y-imageLocation.Y) xyzoom formula (9)

[0115] wherein, ViewSize is the size of the display area, CurrlmageSize is the size of the cropped picture, imageL ocation is the upper left coordinate of the cropped picture, and layerLocation is the coordinate of the target monitoring device relative to the picture.

[0116] The third computing device 360 is configured to calculate a position coordinate of the target monitoring device relative to the cropped image according to a line generated by the map file and a screen line drawn by an operation of the input device, to display the The target monitors the geographical location of the device in space.

[0117] Specifically, the position coordinate layerLocation (X , Y) of the target monitoring device relative to the cropped picture can be calculated by using formula (10).

[0118] layerLocation (X , Y) = (location.X ÷ xzoom + imageLocation.X , location.Y ÷ yzoom + imageLocation.Y) Formula (10) [0119] wherein, location is the position coordinate of the relative screen, and imageLocation is the coordinate of the upper left corner of the cropped image

[0120] In this embodiment, the input device may be a mouse.

[0121] For example, when performing patrol route planning, guard route planning, and the like, the screen line is drawn by the operation of the mouse, and the point set is converted into a relative cropped picture according to the line point set and by calculating the relative cropping picture coordinates of the monitoring device. A collection of coordinates that stores the line to the database.

[0122] When referring to a space calculation type service, such as a nearest monitoring point, the base space calculation unit may perform a distance operation according to the relative picture coordinates. Under the current zoom level and crop position, the relative picture coordinates are calculated, where layerLocation is the device relative icon coordinate Jocation is the relative display area screen coordinates, and the calculation method is as follows:

[0123] pointx = location.X I xzoom + imageLocation.X;

[0124] pointy = location.Y I yzoom + imageLocation.Y.

[0125] The execution module 370 is configured to respond to the service operation instruction of the user end, and feed back the operation result to the interface of the screen.

[0126] The spatial display device of the monitoring device provided by the embodiment combines the target related to the hollowing in the security field according to the relative picture coordinates to form a GIS map element including the graphic object and the attribute, and the data layer is The form is incorporated into the spatial database for unified management. It can contain one or more security-specific business layers, while a layer contains a series of features, and a feature represents a target, consisting of a graphic object and a property record. Graphic objects are usually composed of basic points (such as cameras), lines (such as vehicle running tracks), and faces (switching maps). The attribute table stores auxiliary information of the target (such as camera number, name, type, and other attributes). The graphic object and the attribute table record line are associated by a unique identification number, thereby realizing mutual check of the spatial information and the attribute table, and the map displays different device pictures to display different states of the device, such as a door lock, a camera alarm.

[0127] Example 1, the camera in the point type service interface is selected, and the camera is blinked by clicking or double clicking the camera.

[0128] Example 2, the line of the vehicle running track in the line type service is selected, and the selected line will produce a color change.

[0129] Example 3, the building map in the face business is selected, and the selected map is switched.

[0130] Example 4, when it comes to spatial computing services, such as the nearest monitoring point, you can follow the relative cropping The picture coordinates are used for distance calculation.

[0131] The spatial display device of the monitoring device of the embodiment, by operating the target image, the image cropping display module 330 crops and displays the current interface of the target monitoring device at the screen to generate a cropped image, and the first computing module 340 is Calculating the positioning coordinates of the target monitoring device in the cropped image, the second calculating module 350 calculates the position coordinates of the target monitoring device relative to the screen according to the operation cropping picture and the positioning coordinates, and the third calculating module 360 calculates the position coordinates of the target monitoring device relative to the cropped image, In order to display the geographical location of the target monitoring device in space, the spatial position of the device unit can be accurately displayed, and the roaming, zooming, and zooming operations can be smoothly displayed following the operation of the mouse, and the erection difficulty and the erection cost of the GIS monitoring system can be reduced.

[0132] It should be noted that, the term "comprising" or any other variation thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also It also includes other elements not explicitly listed, or elements that are inherent to such a process, method, item, or device. An element defined by the phrase "comprising a ...", without further limitation, does not exclude the presence of additional elements in the process, method, article, or device that comprises the element.

[0133] The foregoing serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

[0134] Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former It is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of the present invention.

Industrial applicability

[0136] The space display method and device of the monitoring device proposed by the present invention are cut and displayed by operating a target picture Displaying the current interface of the target monitoring device on the screen to generate a cropped image, calculating the positioning coordinates of the target monitoring device in the cropped image, calculating the position coordinates of the target monitoring device relative to the screen and the relative cropping image according to the operation of cropping the image and the positioning coordinates Position coordinates, to display the geographical location of the target monitoring device, can accurately display the spatial position of the device unit, and smoothly display the roaming, zooming in and zooming operations following the operation of the mouse, and can reduce the difficulty and erection of the GIS monitoring system. cost

Claims

Claim

[Claim 1] A spatial display method of a monitoring device, the method comprising:

Cropping and displaying a current interface of the target monitoring device at the screen, and generating a cropped image; in the cropped image, calculating a positioning coordinate of the target monitoring device;

Calculating position coordinates of the target monitoring device relative to the screen by operating the cropped image and the positioning coordinates; calculating the target monitoring device relative to the line generated by the map file and the screen line drawn by the operation of the input device The position coordinates of the cropped picture are displayed to show the geographical location of the target monitoring device in space.

[Claim 2] The spatial display method of the monitoring device according to claim 1, wherein before the cropping and displaying the current interface where the target monitoring device is located, and generating the cropped image, the method further includes:

Import the map file;

A target picture is searched from the map file, and the target picture includes a target monitoring device.

[Claim 3] The spatial display method of the monitoring device according to claim 2, wherein the cropping and displaying the current interface of the target monitoring device at the screen and generating the cropped image comprises: obtaining a zoom level of the target image And a relative coordinate of a center point of the target image; calculating a size of a rectangular display frame of the current screen according to the zoom level;

And cropping the target picture according to a size of the rectangular display frame at a center point relative coordinate position of the target picture to generate a cropped picture;

Copy the cropped image and display the copied copy to the current interface.

[Claim 4] The spatial display method of the monitoring device according to claim 1, wherein the positional coordinates of the target monitoring device relative to the screen and the positional coordinates of the target monitoring device relative to the cropped image conform to the following formula :

Xzoom = ViewSize.Width÷CurrImageSize.Width;

Yzoom = ViewSize.Height÷CurrImageSize.Height;

Location (X , Y) = (layerLocation.X - imageLocation.X) x

Xzoom, (layerLocation.Y-imageLocation.Y)xyzoom; Among them, ViewSize is the size of the display area, CurrlmageSize is the size of the cropped image, Location (X,

Υ) For the target to monitor the position coordinates of the device relative to the screen, imageLocation (X , Y ) is the coordinates of the upper left corner of the cropped image, and layerLocation (X , Y) is the coordinate of the relative image of the target monitoring device.

[Claim 5] The spatial display method of the monitoring device according to any one of claims 1-4, wherein the method further comprises: responding to the business operation instruction of the user end, and feeding back the operation result to the interface of the screen.

[Claim 6] A space display device for a monitoring device, the device comprising:

The picture cropping display module is set to crop and display the current interface of the target monitoring device at the screen, and generate a cropped picture;

a first calculating module, configured to calculate, in the cropped picture, a positioning coordinate of the target monitoring device;

a second calculating module, configured to calculate a position coordinate of the target monitoring device relative to the screen by operating the cropped image and the positioning coordinates;

a third calculating module, configured to calculate a position coordinate of the target monitoring device relative to the cropped image by using a line generated according to the map file and a screen line drawn by operation of the input device, to display the target monitoring device in space Geographic location.

The space display device of the monitoring device according to claim 6, wherein the device further comprises:

Import module, set to import the map file;

And a picture search module, configured to search for a target picture from the map file, where the target picture includes a target monitoring device.

The space display device of the monitoring device according to claim 7, wherein the picture cropping display module comprises:

An obtaining unit, configured to obtain a zoom level of the target image, and a center point relative coordinate of the target image;

a calculating unit, configured to calculate a rectangular display frame of the current screen according to the zoom level Size

a cropping unit, configured to crop the target image according to a size of the rectangular display frame at a center coordinate relative coordinate position of the target image to generate a cropped image; a display unit configured to copy the cropped image, and The copy is displayed to the current interface.

The spatial display device of the monitoring device according to claim 6, wherein the position coordinate of the target monitoring device relative to the screen calculated by the second calculating unit and the target calculated by the third calculating unit The positional coordinates of the monitoring device relative to the cropped image conform to the following formula:

Xzoom = ViewSize.Width÷CurrImageSize.Width;

Yzoom = ViewSize.Height÷CurrImageSize.Height;

Location (X , Y) = (layerLocation.X - imageLocation.X) x

Xzoom, (layerLocation.Y-imageLocation.Y)xyzoom;

Where ViewSize is the size of the display area, and CurrlmageSize is the size of the cropped image.

, Location (X ,

The space display device of the monitoring device according to any one of claims 6 to 9, wherein the device further comprises:

The execution module is set to respond to the business operation instructions of the client, and feeds back the operation result to the interface of the screen.