CN102081657A - Network-based satellite cloud picture positioning method - Google Patents
Network-based satellite cloud picture positioning method Download PDFInfo
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- CN102081657A CN102081657A CN2011100059745A CN201110005974A CN102081657A CN 102081657 A CN102081657 A CN 102081657A CN 2011100059745 A CN2011100059745 A CN 2011100059745A CN 201110005974 A CN201110005974 A CN 201110005974A CN 102081657 A CN102081657 A CN 102081657A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention belongs to the field of computer application and in particular discloses a network-based satellite cloud picture positioning method. The method is characterized by building a corresponding mathematical model and an algorithm according to the geographic information data in the preset area, obtaining the real-time user mouse position, matching the real-time user mouse position with the satellite cloud picture coordinate, displaying the corresponding geographic information and the real-time meteorological information and finally providing detailed and objective satellite cloud picture data information to a user. The PHP (hypertext preprocessor), JavaScript and the like are used to realize collaboration of a server and a client, a special wide band network is adopted as the transmission medium and the collaboration of different programs is realized by calling relevant standard functions, thus finally ensuring the method to be efficiently and stably carried out.
Description
(1) technical field
The invention belongs to computer application field, particularly a kind of based on network satellite cloud picture localization method.
(2) background technology
Along with expanding economy, the progress of science and technology, society is more and more higher to the demand of weather forecast, and corresponding aerological sounding means are also maked rapid progress, the information of technology Network Based is used also constantly development, original satellite cloud picture still picture display mode can not satisfy the demand of meteorological stations at different levels to the diastrous weather monitoring analysis far away, satellite cloud picture presses for to real-time weather forecast business and provides meticulousr, objective information and product, satellite cloud picture product application technology and the method for developing technology Network Based have become the problem that promotes the disastrous weather forecast service ability and press for solution.
The software that can provide satellite cloud picture to show has a lot, and as the MICAPS (weather information comprehensive analysis processing system) of China Meteorological Administration etc., domestic a lot of provincial meteorological departments also all develop the satellite cloud picture software for display of suitable own service.Problem is: (1) large-scale weather forecast is made among software such as the MICAPS, the satellite cloud picture demonstration only is a fraction in its huge function, use comparatively loaded down with trivial details, can not be well with practical business in combine based on the monitoring and warning operation system of B/S structure; (2) in the satellite cloud picture based on the B/S structure of constituent parts exploitation is used, generally be to show with simple picture, meticulous, Kinematic Positioning function to satellite cloud picture are not provided, lack corresponding related weather information in real time, can not satisfy multi-stage user demands such as province, city, counties.
(3) summary of the invention
The present invention is in order to remedy the deficiencies in the prior art, and a kind of service efficiency height, based on network satellite cloud picture localization method that the degree that becomes more meticulous is good are provided.
The present invention is achieved through the following technical solutions:
A kind of based on network satellite cloud picture localization method, it is characterized in that: according to the geographic information data of predeterminable area, set up corresponding mathematical model and algorithm, by obtaining user's mouse position in real time, itself and satellite cloud picture coordinate are mated, and show corresponding geographical information and real-time weather information, finally provide meticulous and objective satellite cloud picture data and related information for the user.
Mainly comprise following concrete steps:
(1) is main programming language with PHP and JavaScript, sets up corresponding program run environment based on the B/S structure;
(2) set up the fixedly satellite cloud picture photo product of map projection and coordinate position, and definite relevant coordinate parameters;
(3) set up coordinate mathematics transformation model according to satellite cloud picture coordinate system information, screen coordinate system information and relevant geography information;
The foundation of mathematical model and location algorithm: in this process, at first determine the relevant geographic factor of satellite cloud picture under fixing map projection's coordinate system, and set up the mathematical model under local coordinate and the terrestrial coordinate system; By mathematical method, set up the transfer algorithm of local coordinate system and user's screen coordinate system, finally determine corresponding coordinate conversion and computation model.
(4), read in real-time geographic information, the meteorological station information automatically in zone etc. from server, and in computing machine, store with index structure according to corresponding time relationship;
Weather information is obtained and storage management in real time: read the corresponding geographical information data from the private server database, and store in calculator memory in the mode of index; According to temporal information, obtain real-time meteorological live data by database simultaneously, and with the indexed mode storage, finally form basic related weather information, this type of information is stored with the array of indexes structure in PHP.
(5) when man-machine interaction, according to user's chosen position, use the coordinate conversion mathematical model, calculate geographic coordinate, and use minor increment algorithm, administrative region, computed user locations place and call number;
User's input is obtained and coordinate conversion: in client, according to coordinate conversion model and the location algorithm set up, screen coordinate is converted to earth latitude and longitude coordinates, and according to administrative areas such as the definite affiliated cities of minor increment algorithm, and definite region call number.
(6) client-side program shows corresponding weather information and geographical attribute information in real time according to call number.
Geo-localisation information output and position display: the information such as geographical longitude and latitude of explicit user mouse position, and, show relevant urban geographic information according to call number.
Related meteorological real-time information output: the ground that program the is transferred region correlation time information data of standing automatically, and showing, thus realize that the server and client side is effectively interactive, finish the satellite cloud picture application that becomes more meticulous.
When user coordinates changed, invocation step (4)-(6) were refreshed interactive interface, behind user's end operation, can preserve and withdraw from the result.
In step (3) and (6), applied mathematical model is set up user coordinates and geographic coordinate transformational relation, and mode Network Based provides satellite cloud picture current location geography information and real-time weather information in real time.
The present invention can realize that the user imports the Dynamic matching of computing machine coordinate and satellite cloud picture geography information, and shows the corresponding geographical relative position.The present invention will comprise the conversion mathematical model between screen coordinate and the terrestrial coordinates, can carry out corresponding calculating automatically, and use the minor increment algorithm, determine geographical attributes such as administrative region, place.
The present invention has carried out meticulous chemical combination quantification with the weather forecaster to the application of satellite cloud picture, make information such as its humidity that can obtain satellite cloud picture information opposite position, precipitation, temperature, wind direction and wind velocity, provide good technical method for better understanding satellite cloud picture.
The present invention uses PHP and JavaScript etc. to realize server and client side's collaborative work, adopt special-purpose broadband network as transmission medium, by the related standards function call being realized the collaborative work of distinct program, this method can be moved by efficient stable.
(4) embodiment
Embodiment:
(1) be main programming language with PHP and JavaScript, set up corresponding program run environment based on the B/S structure, use IIS (V7.0) as Web server, client uses IE8 and compatible browser thereof as the application terminal.
(2) determine fixedly map projection and coordinate position, and generate the satellite cloud picture photo product, obtain relevant coordinate parameters, specifically comprise map projection, satellite cloud picture upper left corner longitude and latitude and indication range etc.
(3) set up coordinate mathematics transformation model according to satellite cloud picture coordinate system information, screen coordinate system information and relevant geography information, and in client use JavaScript, realize related algorithm.
(4) the corresponding time relationship of basis is read in real-time geographic related information, the meteorological station information automatically in 7 zones etc. from server, and stores in computing machine with index structure, and data transmission is arrived client.
(5) when man-machine interaction, according to user's chosen position (this function is finished by function getPointerPosition), use the coordinate conversion mathematical model, calculate geographic coordinate, and use minor increment algorithm, administrative region, computed user locations place and call number (this function is realized by the localizer function).
(6) client-side program is according to call number, shows corresponding weather information and geographical attribute information in real time, mainly comprises the longitude and latitude, cities and counties, place, local humidity, temperature, visibility, wind direction, wind speed of position etc.
(7) when the change of user's screen coordinate, interactive interface is refreshed in this invocation step (4)-(6).
(8) behind user's end operation, can preserve and withdraw from.
Claims (3)
1. based on network satellite cloud picture localization method, it is characterized in that: according to the geographic information data of predeterminable area, set up corresponding mathematical model and algorithm, by obtaining user's mouse screen position in real time, itself and satellite cloud picture coordinate are mated, and show corresponding geographical information and real-time weather information, finally provide meticulous and objective satellite cloud picture data and related information for the user.
2. based on network satellite cloud picture localization method according to claim 1 is characterized by, and comprises the steps: that mainly (1) is main programming language with PHP and JavaScript, sets up corresponding program run environment based on the B/S structure; (2) set up the fixing map projection and the satellite cloud picture photo product of coordinate position, and determine relevant coordinate parameters; (3) set up coordinate mathematics transformation model according to satellite cloud picture coordinate system information, screen coordinate system information and relevant geography information; (4), read in real-time geographic information, the meteorological station information automatically in zone etc. from server, and in computing machine, store with index structure according to corresponding time relationship; (5) when man-machine interaction, according to user's chosen position, use the coordinate conversion mathematical model, calculate geographic coordinate, and use the minor increment algorithm, calculate the administrative region and the call number of region, user screen position; (6) client-side program shows corresponding weather information and geographical attribute information in real time according to call number.
3. based on network satellite cloud picture localization method according to claim 2 is characterized in that: when user coordinates changed, step (4)-(6) of calling were wherein refreshed interactive interface, behind user's end operation, preserve and withdraw from.
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| CN2011100059745A CN102081657B (en) | 2011-01-13 | 2011-01-13 | Network-based satellite cloud picture positioning method |
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| CN2011100059745A CN102081657B (en) | 2011-01-13 | 2011-01-13 | Network-based satellite cloud picture positioning method |
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| CN102081657B CN102081657B (en) | 2012-02-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103745211A (en) * | 2014-02-07 | 2014-04-23 | 彭大维 | Automatic identification system for cloud images |
| CN106204686A (en) * | 2016-07-19 | 2016-12-07 | 华东师范大学 | A kind of accurate Drawing method in coastline on satellite cloud picture |
| CN106250468A (en) * | 2016-07-29 | 2016-12-21 | 捷开通讯(深圳)有限公司 | Storage method, back method, storage-playback and the terminal of environmental information |
| CN107024545A (en) * | 2017-04-28 | 2017-08-08 | 四川嘉义索隐科技有限公司 | Ultrasonic examination alignment system based on GIS |
| CN109634507A (en) * | 2018-12-03 | 2019-04-16 | 广东国图勘测地理信息有限公司 | It is a kind of can touch-control electronic map control method and device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745211A (en) * | 2014-02-07 | 2014-04-23 | 彭大维 | Automatic identification system for cloud images |
| CN106204686A (en) * | 2016-07-19 | 2016-12-07 | 华东师范大学 | A kind of accurate Drawing method in coastline on satellite cloud picture |
| CN106250468A (en) * | 2016-07-29 | 2016-12-21 | 捷开通讯(深圳)有限公司 | Storage method, back method, storage-playback and the terminal of environmental information |
| WO2018018990A1 (en) * | 2016-07-29 | 2018-02-01 | 捷开通讯(深圳)有限公司 | Environment information storage and playback method, and storage and playback system and terminal |
| CN106250468B (en) * | 2016-07-29 | 2019-07-19 | 捷开通讯(深圳)有限公司 | Storage method, back method, storage-playback and the terminal of environmental information |
| US10929477B2 (en) | 2016-07-29 | 2021-02-23 | Jrd Communication (Shenzhen) Ltd | Environment information storage and playback method, storage and playback system and terminal |
| CN107024545A (en) * | 2017-04-28 | 2017-08-08 | 四川嘉义索隐科技有限公司 | Ultrasonic examination alignment system based on GIS |
| CN109634507A (en) * | 2018-12-03 | 2019-04-16 | 广东国图勘测地理信息有限公司 | It is a kind of can touch-control electronic map control method and device |
| CN109634507B (en) * | 2018-12-03 | 2021-04-13 | 广东国图勘测地理信息有限公司 | Touch electronic map control method and device |
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| CN102081657B (en) | 2012-02-22 |
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