CN105526928B - Map area positioning method and device - Google Patents
Map area positioning method and device Download PDFInfo
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- CN105526928B CN105526928B CN201410514162.7A CN201410514162A CN105526928B CN 105526928 B CN105526928 B CN 105526928B CN 201410514162 A CN201410514162 A CN 201410514162A CN 105526928 B CN105526928 B CN 105526928B
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Abstract
The invention is suitable for the field of indoor positioning navigation, and provides a positioning method and a device for a map area, wherein the method comprises the following steps: acquiring the position information of a positioning terminal according to a positioning signal transmitted by a positioning base station; calculating corresponding coordinates of the terminal in a data bitmap according to the position information, wherein each map area in the data bitmap is filled with colors with unique color values; acquiring a data color value of a data bitmap of the positioning terminal according to the current position coordinate of the positioning terminal; and reading the corresponding relation between the color values in the database and the map area to obtain the map information corresponding to the positioning terminal. The invention can avoid the calculation of the range of the map area to which the positioning terminal belongs in the positioning process, quickly find out the map area corresponding to the positioning terminal according to the data bitmap, and greatly improve the searching efficiency of the corresponding map area.
Description
Technical Field
The invention belongs to the field of map positioning, and particularly relates to a map area positioning method and device.
Background
With the popularization of smart phones, positioning and navigation technologies are constantly changing people's lives, such as navigation of vehicles, ships and airplanes; the vehicle GPS management tracking, monitoring and anti-theft are carried out in industries such as large enterprises, traffic, logistics, guarantee and the like; monitoring and nursing the positions of the old and children; emergency lifesaving; mall, public location and navigation services, etc.
In a traditional positioning navigation map, in order to obtain a map area corresponding to a positioning terminal in the map, the shapes of different areas are generally preset, and after longitude and latitude information of a receiving terminal is obtained, the area to which the longitude and latitude information belongs is calculated through a corresponding algorithm, so that position information of the area to which a user belongs is displayed on the map.
The existing map positioning area method can better display the map area to which the positioning terminal belongs, such as a certain building area, but because the shapes of different areas are different, a large amount of computing resources are required to be consumed by computing the map area to which the positioning terminal belongs, and the more complex the area shape is, the slower the computing speed is, which is not beneficial to improving the display efficiency of the map area to which the positioning terminal belongs.
Disclosure of Invention
The invention aims to provide an efficient map area positioning method to solve the problems that in the prior art, due to different shapes of different areas, a large amount of computing resources are required to be consumed by computing a map area to which a positioning terminal belongs, and the display efficiency of the map area to which the positioning terminal belongs is not improved due to the fact that the more complex the area shape is, the slower the computing speed is.
The invention is realized in such a way that a method for positioning a map area comprises the following steps:
acquiring position information corresponding to a positioning terminal according to a positioning signal sent by a positioning base station;
searching the corresponding coordinates of the acquired position information in a data bitmap, wherein different map areas in the data bitmap are filled with unique color values;
obtaining a color value of the position of the searched coordinate;
and reading the corresponding relation between the color values in the database and the map area to obtain the map area corresponding to the positioning terminal.
Another object of the present invention is to provide a map area locating apparatus, comprising:
the positioning base station comprises a position information acquisition unit, a positioning terminal and a positioning base station, wherein the position information acquisition unit is used for acquiring position information corresponding to the positioning terminal according to a positioning signal sent by the positioning base station;
the coordinate searching unit is used for searching the corresponding coordinates of the acquired position information in the data bitmap, and different map areas in the data bitmap are filled with unique color values;
the color value acquisition unit is used for acquiring the color value of the position of the searched coordinate;
and the map area acquisition unit is used for reading the corresponding relation between the color values in the database and the map area to obtain the map area corresponding to the positioning terminal.
In the invention, the position information corresponding to the positioning terminal is obtained according to the positioning signal sent by the positioning base station, the position of the positioning terminal in the data bitmap can be searched according to the position information, and because different map areas in the data bitmap are filled with the color with the unique color value, the color value of the position can be obtained according to the position of the positioning terminal in the data bitmap, and the map area corresponding to the positioning terminal can be obtained according to the corresponding relation between the color value and the positioning area. The invention can avoid the calculation of the range of the map area to which the positioning terminal belongs in the positioning process, particularly for irregular map areas, and can quickly find out the map area corresponding to the positioning terminal, thereby greatly improving the searching efficiency of the corresponding map area.
Drawings
Fig. 1 is a flowchart of an implementation of a method for locating a map area according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating an implementation of a method for generating a data bitmap according to another embodiment of the present invention;
FIG. 3a is a schematic diagram of a data bitmap provided by an embodiment of the present invention;
FIG. 3b is a schematic diagram of a map image display diagram provided by an embodiment of the invention;
fig. 4 is a block diagram of a positioning apparatus for a map area according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The map area positioning method provided by the embodiment of the invention is mainly used for quickly searching and positioning the area in the map to obtain the map area to which the positioning terminal belongs. The map area locating method reduces the calculation amount in the locating process and improves the searching efficiency of the map area at the same time, and the map area locating method comprises the following steps:
acquiring position information corresponding to a positioning terminal according to a positioning signal sent by a positioning base station; searching the corresponding coordinates of the acquired position information in a data bitmap, wherein different map areas in the data bitmap are filled with unique color values; obtaining a color value of the position of the searched coordinate; and reading the corresponding relation between the color values in the database and the map area to obtain the map area corresponding to the positioning terminal.
The map area locating method can avoid the calculation of the range of the map area to which the locating terminal belongs in the locating process, particularly for irregular map areas, and can quickly find out the map area corresponding to the locating terminal, thereby greatly improving the searching efficiency of the corresponding map area. The following detailed description is made with reference to the accompanying drawings:
the method for locating a map area as shown in fig. 1 includes steps S101 to S104, wherein:
in step S101, position information corresponding to the positioning terminal is acquired according to the positioning signal transmitted by the positioning base station.
Specifically, the positioning base station according to the embodiment of the present invention may be a base station for outdoor positioning, and may also be a base station for indoor positioning.
The base station for outdoor positioning includes a gps (global Position system) satellite positioning system, an lbs (location Based service) mobile base station positioning system, and an a-gps (assisted gps) positioning system combining the two.
The GPS satellite positioning is composed of 21 working satellites and 3 in-orbit spare satellites, 24 satellites are uniformly distributed in 6 orbit planes, the satellites continuously send navigation positioning signals to users by using two radio carriers of an L wave band, and the navigation positioning signals contain position information of the satellites to enable the satellites to become a dynamic known point;
LBS is to obtain the location information of the mobile terminal user through the operator's network (e.g. GSM network, CDMA network), and the distribution and density of the operator's base stations directly affect the positioning function. The GPS generally has a positioning error of about 10 meters, but the time required for starting satellite search and calculating the position is long; LBS positioning error is about 50 m-500 m (the error is larger in remote areas or places with poor mobile phone signals).
The existing mobile equipment uses a lot of positioning systems, namely an A-GPS (assisted GPS) positioning system which takes GPS as a main LBS as an auxiliary, and has high reaction speed and an error of 15-30 meters.
The positioning terminal may be a mobile terminal with a positioning function, such as a smart phone, a navigator, or other devices for navigation positioning. And a positioning signal receiving module, such as a GPS module, a base station signal receiving module, or other WiFi signal receiving modules, or bluetooth receiving modules based on a bluetooth 4.0 long-distance low-power consumption communication protocol, is arranged in the positioning terminal, and is used for receiving positioning information sent by the positioning base stations, and determining the position of the positioning terminal according to the position information of the plurality of positioning base stations.
The position information can be longitude and latitude information, the longitude and latitude information corresponds to each coordinate point in the data bitmap one by one, and the coordinates in a subsequent map image display map also correspond to the longitude and latitude information one by one.
In step S102, the coordinates of the acquired location information in the data bitmap are searched, and different map areas in the data bitmap are filled with unique color values.
Coordinates are set in the data bitmap, and each coordinate position in the data positions corresponds to a longitude and a latitude in an actual scene in a one-to-one mode.
The data bitmap comprises a plurality of map areas, and longitude and latitude information of the map areas corresponds to coordinate information of the map areas in the data bitmap.
Before the step of searching the corresponding coordinates of the obtained location information in the data bitmap, the method of the present invention may further include steps S201 and S202 as shown in fig. 2, configured to generate the data bitmap, where:
in step S201, the shape of a map area and position information corresponding to the map area are acquired.
The map area refers to information displayed for indicating a range to which the location terminal is located, for example, current location information of a user correspondingly displayed when sending personal information such as WeChat and microblog, or when the user needs to locate a general area such as taxi, for example, the map area may be "XX park", "XX museum", etc., and of course, for indoor location, for example, a location technology using a Bluetooth 4.0 protocol with high accuracy may define the map area as an area of a certain indoor shop or room.
The shape of the map area is matched with the shape of the object in the actual scene, for example, the map area is an 'XX coffee hall', and the map area corresponding to the coffee hall can be set correspondingly according to the actual shape of the coffee hall.
Determining the shape of the map area according to the shape of the map area, for example, when the map area is a regular triangle, only three vertexes of the triangle need to be acquired; if the quadrilateral is a regular quadrilateral, acquiring four vertexes of the quadrilateral; if the shape is irregular, a plurality of vertex information and shape information of the edge need to be recorded.
The position information of the map area may be directly represented by latitude and longitude of the map area, which is not limited to this, and it can be understood by those skilled in the art that the position information may also be represented by relative positions with other position points.
In step S202, according to the position information, a color of a unique color value is filled in a shape area corresponding to a coordinate position corresponding to the data bitmap, and a corresponding relationship between the color value and the map area is established.
And coordinate information is set in the data bitmap, and the coordinate information corresponds to longitude and latitude information in an actual scene one by one. Then, according to the position information of the map area, the corresponding map area in the data position can be correspondingly obtained, and the color of the unique color value is filled in the corresponding map area in the data bitmap.
The color value may be a CMYK color value or an RGB color value. Such as CMYK color values or RGB color values, where each letter in CMYK or RGB represents a color, and the total color value that four colors can represent is the product of the values that may appear for each color, such as 255 x 100.
In each map area, a color value uniquely corresponds, for example, as shown in fig. 3a, which is a schematic diagram of one of the blocks in the data bitmap, and the data position is used to indicate the allocation schematic diagram of the map area of a certain floor in the room.
The purpose of using the data bitmap block is to facilitate the updating and maintenance of the data bitmap, and when a new data bitmap appears, only the current data bitmap block needs to be replaced.
For region a, it may be defined as yellow with a color value of 194.168.14,80, and for region B, it may still be defined as yellow with a fill color of 194.168.14, 70. Then, according to the uniqueness of the color values, a one-to-one correspondence relationship between the color values and the map area can be established.
In step S103, a color value of the position of the searched coordinate is obtained.
According to the coordinate of the positioning base station in the data bitmap, the color value of the position of the coordinate can be read.
In step S104, the corresponding relationship between the color value and the map area in the database is read to obtain the map area corresponding to the positioning terminal.
After the color value of the position of the positioning terminal in the data bitmap is read, the current region of the positioning terminal can be obtained according to the one-to-one correspondence relationship between the color value and the map region.
For example, if the color value of the position of the positioning terminal in the data bitmap is gold, and the color value is 255,215,0, 60, the corresponding map area is searched for the XX theater, so as to obtain the area position information of the positioning terminal.
Of course, on the basis of the above steps, the present invention may further include a step of displaying a map image display map corresponding to the map area according to the acquired map area, and coordinates of the map image display map correspond to coordinates of the data bitmap.
The map image display map is used for displaying map information corresponding to a scene, for example, the map image display map in the outdoor map may include information such as images of buildings, streets, squares, etc., and the indoor map image display map may include image information such as rooms, aisles, elevators, etc., as shown in fig. 3 b.
The map area positioning method provided by the embodiment of the invention can preset the data bitmap, fills the unique color of each map area in the data bitmap, and can acquire the map area to which the positioning terminal belongs only by reading the color value corresponding to the current position of the positioning terminal in the use process. The invention can simply and quickly obtain the map area corresponding to the positioning terminal by the color matching mode, thereby saving resources and being beneficial to improving the response speed.
Fig. 4 is a block diagram of a positioning apparatus for a map area according to an embodiment of the present invention, which is detailed as follows:
the map area positioning device of the present invention includes:
a location information obtaining unit 401, configured to obtain location information corresponding to a location terminal according to a location signal sent by a location base station;
a coordinate searching unit 402, configured to search for a corresponding coordinate of the obtained location information in a data bitmap, where different map areas in the data bitmap are filled with unique color values;
a color value obtaining unit 403, configured to obtain a color value of a position where the searched coordinate is located;
and the map area obtaining unit 404 is configured to read a corresponding relationship between the color value and the map area in the database, so as to obtain the map area corresponding to the positioning terminal.
Further, the apparatus further comprises:
the device comprises a shape position acquisition unit, a position information acquisition unit and a shape display unit, wherein the shape position acquisition unit is used for acquiring the shape of a map area and the position information corresponding to the map area;
and the filling unit is used for filling the color of the unique color value in the shape area corresponding to the coordinate position corresponding to the data bitmap according to the position information, and establishing the corresponding relation between the color value and the map area.
Further preferably, the apparatus further comprises:
and the display unit is used for displaying a map image display map corresponding to the map area according to the acquired map area, and the coordinates of the map image display map correspond to the coordinates of the data bitmap.
Optionally, the color value is a CMYK color value or an RGB color value.
Preferably, the positioning base station is a bluetooth positioning base station based on a bluetooth 4.0 protocol for indoor positioning.
The positioning apparatus for map area shown in fig. 4 corresponds to the positioning method for map area shown in fig. 1 to 3, and will not be repeated herein.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A method for locating a map area, the method comprising:
acquiring position information corresponding to a positioning terminal according to a positioning signal sent by a positioning base station;
acquiring the shape of a map area and position information corresponding to the map area; the map area refers to information displayed for indicating a range to which the position of the positioning terminal belongs; according to the position information corresponding to the map area, filling the color of a unique color value in a shape area corresponding to the position information corresponding to the map area, and establishing a corresponding relation between the color value and the position information corresponding to the map area to generate a blocky data bitmap, wherein coordinate information is arranged in the data bitmap and corresponds to longitude and latitude information in an actual scene one by one;
searching for the corresponding coordinates of the acquired position information of the positioning terminal in the data bitmap, wherein the longitude and latitude information of the map area corresponds to the coordinate information of the map area in the data bitmap;
obtaining a color value of the position of the searched coordinate;
reading the corresponding relation between the color values in the database and the map area to obtain the map area corresponding to the positioning terminal;
displaying a map image display map corresponding to the map area according to the acquired map area, wherein the coordinates of the map image display map correspond to the coordinates of the data bitmap; the map image display map is used for displaying map information corresponding to a scene.
2. The method of claim 1, wherein the color value is a CMYK color value or an RGB color value.
3. The method of claim 1, wherein the positioning base station is a bluetooth positioning base station based on bluetooth 4.0 protocol for indoor positioning.
4. An apparatus for locating a map area, the apparatus comprising:
the positioning base station comprises a position information acquisition unit, a positioning terminal and a positioning base station, wherein the position information acquisition unit is used for acquiring position information corresponding to the positioning terminal according to a positioning signal sent by the positioning base station;
the positioning terminal comprises a shape position acquisition unit, a shape position acquisition unit and a positioning unit, wherein the shape position acquisition unit is used for acquiring the shape of a map area and position information corresponding to the map area, and the map area refers to information displayed for indicating a range where the position of the positioning terminal belongs;
the filling unit is used for filling the color of a unique color value in a shape area corresponding to the position information corresponding to the map area according to the position information corresponding to the map area, and establishing the corresponding relation between the color value and the position information corresponding to the map area so as to generate a blocky data bitmap, wherein the data bitmap is provided with coordinate information, and the coordinate information corresponds to longitude and latitude information in an actual scene one by one;
the coordinate searching unit is used for searching the corresponding coordinates of the acquired position information of the positioning terminal in the data bitmap, and the longitude and latitude information of the map area corresponds to the coordinate information of the map area in the data bitmap;
the color value acquisition unit is used for acquiring the color value of the position of the searched coordinate;
the map area acquisition unit is used for reading the corresponding relation between the color values in the database and the map area to obtain the map area corresponding to the positioning terminal;
the display unit is used for displaying a map image display map corresponding to the map area according to the acquired map area, and the coordinates of the map image display map correspond to the coordinates of the data bitmap; the map image display map is used for displaying map information corresponding to a scene.
5. The apparatus of claim 4, wherein the color value is a CMYK color value or an RGB color value.
6. The apparatus of claim 4, wherein the positioning base station is a Bluetooth positioning base station based on Bluetooth 4.0 protocol for indoor positioning.
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| CN107666596A (en) * | 2017-10-12 | 2018-02-06 | 安徽特旺网络科技有限公司 | A kind of tracing and monitoring method |
| CN107666597A (en) * | 2017-10-12 | 2018-02-06 | 安徽特旺网络科技有限公司 | A kind of building video monitoring system |
| CN108022321A (en) * | 2017-11-29 | 2018-05-11 | 苏州天华信息科技股份有限公司 | A kind of O＆M inspection managing and control system and method based on GPS |
| CN108024201A (en) * | 2017-11-30 | 2018-05-11 | 深圳市沃特沃德股份有限公司 | Sweeping robot and its method relocated |
| CN108537127B (en) * | 2018-03-14 | 2019-03-15 | 威海山威软件科技有限公司 | Vehicle on-site identification system |
| CN112732848B (en) * | 2020-11-03 | 2023-06-20 | 四川锐图威视科技有限公司 | Vehicle positioning method and device based on color recognition and computer readable storage medium |
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