CN104375991A - Image map-based urban monitoring system - Google Patents

Image map-based urban monitoring system Download PDF

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Publication number
CN104375991A
CN104375991A CN201310347964.9A CN201310347964A CN104375991A CN 104375991 A CN104375991 A CN 104375991A CN 201310347964 A CN201310347964 A CN 201310347964A CN 104375991 A CN104375991 A CN 104375991A
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China
Prior art keywords
map
picture
latitude
longitude
point
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CN201310347964.9A
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Inventor
冯小卫
周小川
龙国煊
洪亮
杨超惠
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INFORMATION TECHNOLOGY Co Ltd SHANGHAI AVCON
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INFORMATION TECHNOLOGY Co Ltd SHANGHAI AVCON
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Priority to CN201310347964.9A priority Critical patent/CN104375991A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29Geographical information databases
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B29/00Maps; Plans; Charts; Diagrams, e.g. route diagram

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Educational Technology (AREA)
  • Educational Administration (AREA)
  • Business, Economics & Management (AREA)
  • Mathematical Physics (AREA)
  • Remote Sensing (AREA)
  • Data Mining & Analysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Or Creating Images (AREA)

Abstract

The invention provides an image map-based urban monitoring system comprising a data acquisition module, a coordinate conversion module, at least one monitoring terminal, a monitoring processing module, a displaying module and a user interface; the data acquisition module is used for capturing map data of other map systems; the monitoring terminals are used for collecting information of a site under monitoring; the monitoring processing module is used for processing the information collected by the monitoring terminals; the displaying module is used for loading a map image and the monitoring terminals and displaying the map image; the user interface is used for interaction with users. Preferably, the data acquisition module captures the map images one by one and their longitude and latitude ranges under each map scale and generates different scale layers. The image map-based urban monitoring system allows map displaying to be achieved with no need for original vector map data, leading to lower development costs of non-online vector E-maps, shorter development cycle thereof and lower development expenditures thereof.

Description

A kind of City Surveillance System based on picture map
Technical field
The present invention relates to a kind of City Surveillance System, particularly a kind of supervisory system based on Pictures Electronics map.
Background technology
Along with the development construction of national smart city, City Surveillance System has played more and more heavier effect.And City Surveillance System needs and electronic chart is closely linked.
Electronic chart can based on off-line map (refer to not access Internet access diagram data, all map datums are all from LAN (Local Area Network) internal server) or Online Map.Existing electronic chart solution mainly based on Online Map, as Baidu's map and Google Maps.But, there is the private network of oneself in some special tissue or unit, and can not or be inconvenient to access Internet due to special reason, the solution based on off-line map can only be selected by these tissues or unit.
Build an off-line map (current off-line map normally off-line map vector) system to need to consume additional expense introducing map vector data; Need cost manpower and materials to go to process map vector data, change into displayable map; Construction cycle is uncontrollable; Increase the development cost of monitor supervision platform.This directly results in build high based on the City Surveillance System cost of off-line map vector, the cycle long, have a big risk.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of City Surveillance System based on picture map, for solving in prior art the City Surveillance System of building based on off-line map.
For achieving the above object and other relevant objects, the invention provides a kind of City Surveillance System based on picture map, comprising: data acquisition module, for capturing the map datum in other map system; Coordinate transferring; At least one monitor terminal, for collecting the information in monitored place; Monitor processing module, for the treatment of the information that described monitor terminal is collected; Display module, for loading described map picture and described monitor terminal and showing; User interface, for user interactions.
Preferably, described data acquisition module is to different engineer's scales, and equal block-by-block captures the longitude and latitude scope of map picture and every pictures, generates different engineer's scale layer.
As mentioned above, City Surveillance System based on picture map of the present invention, there is following beneficial effect: Internet need not be connected, can be presented in map to monitor terminal alarm when need not introduce non-online Vector Electronic Map, realize not needing the function that just can realize map denotation by original vector map datum, thus reduce R&D risk, R&D cycle and the R & D Cost of the non-online version Vector Electronic Map of exploitation.
Accompanying drawing explanation
Fig. 1 is shown as the City Surveillance System block diagram based on picture map of the present invention;
Fig. 2 is shown as the method flow diagram of construction of the present invention based on the system of Pictures Electronics map.
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this instructions can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this instructions also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Refer to accompanying drawing.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Consult Fig. 1, Fig. 1 is shown as according to the City Surveillance System block diagram based on picture map of the present invention.Wherein, data acquisition module 1, for capturing the map datum of other map system, calls in order to other module.Particularly, in this example, to gather map of China data instance, data acquisition module 1 first calculates the longitude and latitude rectangle frame in a circumscribed Chinese border, according to this longitude and latitude rectangle frame, use online map supply business, such as Baidu's map or Google Maps, application programming interfaces (the ApplicationProgram Interface provided, be called for short API), successively carry out the map picture that scanning captures fixed mask size (as 864*864, unit: pixel) line by line, generating pictures identifies, and gathers the longitude and latitude scope of every pictures.Preferably, can all do above-mentioned data collection task under different scale condition, by collect map picture data in proportion chi set up different layer, the corresponding engineer's scale condition of each layer.Picture identification also can comprise the information of layer belonging to picture.
Coordinate transferring 2, for the mutual conversion between longitude and latitude, planimetric coordinates, picture identification, pixel coordinate, comprises following conversion: longitude and latitude changes into planimetric coordinates through projection algorithm (using Mercator projection algorithm in this example); Longitude and latitude transfers picture identification to; Planimetric coordinates transfers pixel coordinate to; Longitude and latitude transfers pixel coordinate in map sheet to, and the inverse conversion of above-mentioned conversion.
Monitor terminal 3, for collecting and sending the detailed video in monitored place, audio frequency and Word message, can be monitoring camera, mobile terminal, infrared probe, intercom etc.
Monitor processing module 4 is connected to monitor terminal 3 by modes such as optical cable, cable or wireless links, for sending remote control commands to monitor terminal 3, and video, audio frequency and Word message that process monitor terminal 3 reports.Preferably, the connection between monitor processing module 4 and monitor terminal 3 should support that this carries out two-way communication between the two.
Display module 5 is connected with monitor processing module 4 and coordinate transferring 2, after it is responsible for the state, positional information etc. of map picture data and monitor terminal 3 to integrate, exporting to user interface 6 can for the data of display, and accept the operational order that user inputted by user interface 6, issue monitor processing module 4, and then map or monitor terminal 3 are controlled.
Display module 5 is wanted can load map datum for display, load step is particularly: first determine map display parameter, comprise the longitude and latitude that map denotation screen size, displaying ratio chi and map denotation specified point are corresponding, such as selection of land figure display screen central point is as specified point, for Beijing is presented at map screen center, then should specify Pekinese's latitude and longitude information.Then the picture identification at map denotation specified point place is determined, the longitude and latitude scope representated by map picture of often opening generated according to data acquisition module 1 and the latitude and longitude coordinates (l of map denotation central point O 0, p 0), just can select dropped on picture sequence numbers, suppose that this picture is a.Then by the latitude and longitude coordinates of specified point, with projection algorithm conversion imaging vegetarian refreshments coordinate, such as can use the projection algorithm (using Mercator projection algorithm in this example) mated with Online Map supplier, call coordinate transferring 2 O point latitude and longitude coordinates (l 0, p 0) and picture a upper left corner latitude and longitude coordinates (l a, p a) be converted to pixel coordinate, just can correctly Load Image a on map denotation screen (in reality, when engineer's scale is very little or the picture of display marginal portion time, the part of a that may only need to Load Image).Finally, when loading other picture, can according to the map picture of specifying the longitude and latitude scope of the wide height of screen and each picture and/or specified point calculation of longitude & latitude to go out to need to load or picture region.
Preferably, display module 5 also provides map translation and map zoom function.During translation, be equivalent to the pixel coordinate corresponding with O point original on map by (x 0, y 0) become (x 1, y 1), at this moment can calculate (x 0, y 0) and (x 1, y 1) between the distance that represents with pixel, then through inverse transformation, just can obtain latitude and longitude coordinates corresponding to new map denotation central point (l ' 0, p ' 0), then according to above-mentioned algorithm similarly, the loading of map after translation just can be completed.For convergent-divergent, be equivalent to change map scale, so only need to load the picture in the layer corresponding with this engineer's scale as stated above.
Display module 5 can load the information such as position, state of monitor terminal 3, to be shown on map.When monitor terminal 3 is installed, the information such as its longitude and latitude, device type, device name, brief introduction, address, parent device title is known.When needs are on map during display monitoring terminal, map display module 5 calls coordinate transferring 2, converts the latitude and longitude coordinates of monitor terminal 3 to pixel coordinate, and marks at this position display monitor terminal.
Preferably, display module 5 also provides monitor terminal geographical location information editting function.In some occasion, there is no the accurate latitude and longitude information of monitor terminal 3, such as, namely monitor terminal 3 for have equipment, do not preserve its accurate latitude and longitude information during installation, need manually to be added supervisory system, at this time just need the monitor terminal geographical location information editting function using display module 5.Particularly, when user is by user interface 6, when map is clicked certain position, display module 5 can obtain picture identification and the pixel coordinate of this point.Then call coordinate transferring 2, convert pixel coordinate to latitude and longitude coordinates and be shown to user, such as, be presented in edit box, edit box can also comprise the monitor terminal such as device name, type attribute item.User edits the content in edit box, after confirming preservation, the attribute item information that the users such as the longitude and latitude of this monitor terminal 3 edit by display module 5 is again stored in monitor terminal 3 or in monitor processing module 4, or in Universal Database, meanwhile, display module 5 this position will be shown as monitor terminal mark.Similarly, certain monitor terminal also can be deleted by user from supervisory system, only need to click monitor terminal mark on the user interface, and select to delete, display module 5 can send instruction to monitor processing module 4, delete the information of this monitor terminal, and delete the monitor terminal mark of this position on map.
More preferably, display module 5 can also load audio frequency, video etc. data that processed by monitor processing module 4, that collected by monitor terminal 3.According to a preferred embodiment, display module 5 is loaded with the information of picture map and monitor terminal 3, and demonstrates monitor terminal 3 with the form of point of interest on picture map.When user is by user interface 6, when click represents the point of interest of monitor terminal 3, this request of user (information such as device identification of the monitor terminal 3 represented comprising this point of interest) is transmitted to monitor processing module 4 by display module 5, monitor processing module 4 transfers corresponding data, such as but not limited to audio frequency, video and Word message that this monitor terminal 3 is collected, send display module 5 to, then loaded by display module 5 and be shown to user.
More preferably, utilize the method similar with above-mentioned interactive process, between monitor terminal 3 and user interface 6, user can be realized and monitor terminal carries out two-way intercommunication, Long-distance Control, support Real-time Collection, the movement locus of tracking and playback mobile monitoring terminal, audio frequency, video and Word message.
More preferably, display module 5 can also the prompting of display monitoring terminal alarms.(may be artificial warning when monitor terminal 3 receives the report for police service, also may be the warning that certain data collected exceed pre-set threshold value triggering) time, warning message is sent to monitor processing module 4, display module 5 together with other data collected by monitor terminal 3, display module 5 is judged as warning message, then on user interface 6, highlighted display represents the icon of this monitor terminal, and automatically plays movement locus, audio frequency, video and Word message that this monitor terminal gathers.
The information such as user interface 6 is responsible for and user interactions, display map, receive user's input.Can be a set of input-output device comprising display, mouse, keyboard, also can be touch-screen, can also be handheld terminal etc.For the occasion needing the functions such as two-way intercommunication, Long-distance Control, user interface 6 correspondingly should have the software and hardware functional modules such as audio collection, audio frequency broadcasting and instruction input.
It should be noted that, in practical application, the present invention can have numerous embodiments, such as, in above-described embodiment, unified database can be set, for storing the information collected by data acquisition module 1, monitor terminal 3, also unified database can not be set, and memory function is all set in each module, for storing information.
Below in conjunction with Fig. 2 introduction according to a kind of method of building Pictures Electronics map system of the present invention.
In Fig. 2, step S1 represents collection map picture and the longitude and latitude data area that often pictures is corresponding.Particularly, in this example, to gather map of China data instance, data acquisition module 1 first calculates the longitude and latitude rectangle frame in a circumscribed Chinese border, according to this longitude and latitude rectangle frame, online map supply business (such as Baidu's map or Google Maps) is used to provide API, successively carry out scanning line by line and capture fixed mask size (as 864*864, unit: pixel) map picture, generating pictures identifies, and gathers the longitude and latitude scope of every pictures and/or the latitude and longitude coordinates of specified point (such as central point, picture four summits).Preferably, can all do above-mentioned data collection task under different scale condition, by collect map picture data in proportion chi set up different layer, the corresponding engineer's scale condition of each layer.Picture identification also can comprise the information of layer belonging to picture.
Step S2 represents the display parameter of setting map, the longitude and latitude that such as map denotation screen size, displaying ratio chi and map denotation specified point are corresponding.In this example, to show map of China, map denotation specified point is map denotation screen central point, corresponding geographic Beijing.
Step S3 represents the picture identification determining that map denotation specified point drops on.In this example, according to Pekinese's latitude and longitude information and each picture longitude and latitude scope collected and/or specified point latitude and longitude information, the picture at map denotation central point place can be determined, and determine this picture identification.
Step S4 represents the latitude and longitude coordinates conversion imaging vegetarian refreshments coordinate of specified point on picture.Coordinate conversion can use with gather map picture based on the consistent projection algorithm (as: the Mercator projection algorithm that Baidu's map uses) of Online Map supplier.In this example, appointment map center point, Ye Ji Pekinese latitude and longitude coordinates, and the upper left corner longitude and latitude of picture that Beijing is dropped on is converted to pixel coordinate.The picture that so just Beijing can be dropped on correctly is loaded on map denotation screen.
Step S5 represents loading map picture.Can according to the map picture of specifying the longitude and latitude scope of the wide height of screen and each picture and/or specified point calculation of longitude & latitude to go out to need to load or picture region.
In sum, the present invention need not connect Internet, can to monitor terminal alarm (for mobile monitoring terminal when need not introduce non-online Vector Electronic Map, its movement locus can be shown) be presented in map, realize not needing just can realize map display function by original vector map datum, thus the cost of development of the non-online version Vector Electronic Map of reduction exploitation, construction cycle and development cost.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.

Claims (10)

1. based on a City Surveillance System for Pictures Electronics map, it is characterized in that, comprising:
Data acquisition module, for capturing the map datum in other map system;
Coordinate transferring;
At least one monitor terminal, for collecting the information in monitored place;
Monitor processing module, for the treatment of the information that described monitor terminal is collected;
Display module, for loading described map picture and described monitor terminal and showing;
User interface, for user interactions.
2. the City Surveillance System based on Pictures Electronics map according to claim 1, is characterized in that, the API that described data acquisition module uses online map supply business to provide, and block-by-block captures the longitude and latitude scope of map picture and every pictures.
3. the City Surveillance System based on Pictures Electronics map according to claim 1, is characterized in that, described monitor terminal comprises monitoring camera, mobile terminal, infrared probe, intercom.
4. the City Surveillance System based on Pictures Electronics map according to claim 1, is characterized in that, the step that described display module loads map picture comprises:
Setting map display parameter;
Determine the picture identification that map denotation specified point drops on;
Convert the picture upper left angle point latitude and longitude coordinates representated by described picture identification to pixel coordinate;
Go out to need the map picture that loads or picture region according to the longitude and latitude range computation of described map denotation parameter and described map picture.
5. the City Surveillance System based on Pictures Electronics map according to claim 1, is characterized in that, described display module is also for loading described monitor terminal information.
6. the City Surveillance System based on Pictures Electronics map according to claim 2, is characterized in that, described data acquisition module is to different engineer's scales, and equal block-by-block captures the longitude and latitude scope of map picture and every pictures, generates different engineer's scale layer.
7. the City Surveillance System based on Pictures Electronics map according to claim 4, is characterized in that, described display module is also for realizing the translation functions of map, and concrete steps comprise:
Calculate the distance that between O point and A point, pixel represents;
The distance that described pixel represents is inversely transformed into longitude and latitude distance;
Calculate the latitude and longitude coordinates representated by described O point;
Determine the picture identification that O point drops on;
Specified point latitude and longitude coordinates in the picture represent described picture identification converts pixel coordinate to;
Go out to need the map picture that loads or picture region according to the longitude and latitude range computation of described map denotation parameter and described map picture;
Wherein, described O point represents map denotation screen central point, before described A point represents translation, and point corresponding with O point on map, position residing on map denotation screen after by translation.
8. the City Surveillance System based on Pictures Electronics map according to claim 4, is characterized in that, described parameter comprises map denotation screen size, displaying ratio chi and map denotation specified point and longitude and latitude corresponding to described map denotation specified point.
9. the City Surveillance System based on Pictures Electronics map according to claim 5, it is characterized in that, described display module is also for monitor terminal information editing function, when user selects a position on map denotation screen, described display module calls described coordinate transferring, convert the pixel coordinate of described position to latitude and longitude coordinates, user modifies to described latitude and longitude coordinates and after preserving, described display module preserves described latitude and longitude coordinates, and at described position display monitor terminal icon.
10. build the method based on Pictures Electronics map, it is characterized in that, comprising:
Map picture and longitude and latitude range data corresponding to every pictures is gathered from existing map;
Setting map display parameter;
Determine the picture identification that map denotation specified point drops on;
Convert the picture upper left angle point latitude and longitude coordinates representated by described picture identification to pixel coordinate;
Go out to need the map picture loaded according to the longitude and latitude range computation of described map denotation parameter and described map picture.
CN201310347964.9A 2013-08-12 2013-08-12 Image map-based urban monitoring system Pending CN104375991A (en)

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CN105808756A (en) * 2016-03-15 2016-07-27 佛山市网冠金属制品有限公司 Map retrieval method and map retrieval system
CN106227853A (en) * 2016-07-28 2016-12-14 裘羽 One map generalization method electronically and processing method
CN106847068A (en) * 2017-01-22 2017-06-13 腾云天宇科技(北京)有限公司 A kind of map conversion method, device and computing device
CN107105055A (en) * 2017-05-23 2017-08-29 上海双微导航技术有限公司 A kind of application and geography information matching system based on positional information
CN111562894A (en) * 2019-02-14 2020-08-21 阿里巴巴集团控股有限公司 Layer display method, device and equipment
CN111857626A (en) * 2020-07-16 2020-10-30 北京奇虎科技有限公司 Picture display method, device and equipment based on screen coordinates and storage medium

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CN103000076A (en) * 2012-11-23 2013-03-27 山东电力集团公司 Aerial phone map displaying method meeting power distribution real-time monitoring

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Publication number Priority date Publication date Assignee Title
CN105808756A (en) * 2016-03-15 2016-07-27 佛山市网冠金属制品有限公司 Map retrieval method and map retrieval system
CN105808756B (en) * 2016-03-15 2019-05-24 佛山市网冠金属制品有限公司 A kind of map retrieval method and its system
CN106227853A (en) * 2016-07-28 2016-12-14 裘羽 One map generalization method electronically and processing method
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CN111562894A (en) * 2019-02-14 2020-08-21 阿里巴巴集团控股有限公司 Layer display method, device and equipment
CN111857626A (en) * 2020-07-16 2020-10-30 北京奇虎科技有限公司 Picture display method, device and equipment based on screen coordinates and storage medium

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Application publication date: 20150225