CN117641228A - Differential data processing method, differential data processing device, medium and electronic equipment - Google Patents
Differential data processing method, differential data processing device, medium and electronic equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- H—ELECTRICITY
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The disclosure provides a differential data processing method, a differential data processing device, a differential data processing medium and electronic equipment, and relates to the field of communication. The differential data processing method comprises the following steps: determining a target network equipment identifier currently accessed by the terminal equipment in response to positioning request information sent by the terminal equipment; determining differential data corresponding to the target network equipment identifier based on predetermined differential data association information to obtain target differential data; and generating positioning response information according to the target differential data, and sending the positioning response information to the terminal equipment. The present disclosure reduces network resource consumption.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a differential data processing method, a differential data processing apparatus, a computer readable storage medium, and an electronic device.
Background
With the development of the positioning technology, a differential positioning technology appears, and the differential positioning technology can improve the positioning precision to the centimeter level, so that the method has extremely high application prospect in a high-precision positioning scene.
In the related art, a differential positioning technology utilizes a reference station with known position information, compares acquired satellite positioning information with the already-positioned information of the reference station to solve differential data, and when terminal equipment needs to be positioned, needs to determine initial positioning information first and sends an initial positioning result to a positioning service center to acquire differential data corresponding to the terminal equipment; finally, the terminal device can correct the initial positioning information according to the differential data to determine a positioning result.
However, the differential data acquisition method provided in the related art needs to send initial positioning information of the terminal device to the positioning service center, which increases network resource overhead.
Disclosure of Invention
The disclosure provides a differential data processing method, a differential data processing device, a differential data processing medium and electronic equipment, so that network resource consumption is reduced.
According to a first aspect of the present disclosure, there is provided a differential data processing method, the method being applied to a location service device, comprising:
determining a target network equipment identifier currently accessed by the terminal equipment in response to positioning request information sent by the terminal equipment;
determining differential data corresponding to the target network equipment identifier based on predetermined differential data association information to obtain target differential data;
and generating positioning response information according to the target differential data, and sending the positioning response information to the terminal equipment, wherein the positioning response information is used for enabling the terminal equipment to determine the current position information of the terminal equipment according to the target differential data.
Optionally, the determining, based on the predetermined differential data association information, differential data corresponding to the target network device identifier to obtain target differential data includes:
Determining a target grid area corresponding to the target network equipment identifier in a predetermined corresponding relation table of network equipment and the grid area, wherein the grid area is obtained after the positioning service area is rasterized;
and acquiring differential data of the target grid region in the differential grid data acquired in advance to obtain target differential data, wherein the differential grid data comprises a plurality of grid region coordinates and differential data of each grid region.
Optionally, before determining the target network device identifier currently accessed by the terminal device in response to the positioning request information sent by the terminal device, the method further includes:
responding to the differential raster data sent by the differential data service equipment, and obtaining the differential raster data;
and determining the grid area corresponding to each optional network device according to the grid area coordinates and the device information of the optional network devices to obtain a corresponding relation table of the network devices and the grid areas.
Optionally, the device information includes optional network device coordinates and optional network device identifiers, and determining, according to the plurality of grid region coordinates and the device information of the plurality of optional network devices, a grid region corresponding to each of the optional network devices, to obtain a table of correspondence between the network devices and the grid regions, includes:
For each optional network device, determining a plurality of location distance values according to the optional network device coordinates and each grid region coordinate;
if the minimum distance value in the plurality of position distance values is smaller than or equal to a preset distance threshold value, determining a grid area associated with the minimum distance value as a grid area corresponding to the optional network equipment;
establishing the selectable network equipment identifier and the corresponding relation of the grid area corresponding to the selectable network equipment, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area.
Optionally, the device information includes an antenna azimuth angle of the network device, and the method further includes:
if the minimum distance value in the plurality of position distance values is larger than a preset distance threshold value, arranging the plurality of position distance values in a sequence from small to large to obtain a position distance value sequence, and sequentially selecting a preset number of target position distance values in the position distance value sequence by taking the minimum position distance value as a starting point;
determining a plurality of alternative azimuth angles according to the optional network equipment coordinates and grid area coordinates associated with each target position distance value;
Determining a grid area associated with a target alternative azimuth angle as a grid area corresponding to the optional network device, wherein the target alternative azimuth angle is an alternative azimuth angle with the smallest difference value with the antenna azimuth angle of the network device in a plurality of alternative azimuth angles;
establishing the selectable network equipment identifier and the corresponding relation of the grid area corresponding to the selectable network equipment, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area.
According to a second aspect of the present disclosure, there is provided a differential data processing method, which is applied to a terminal device, including:
responding to a positioning service request, and sending positioning request information to positioning service equipment, wherein the positioning request information is used for indicating the positioning service equipment to return target differential data corresponding to target network equipment identification according to the target network equipment identification accessed by terminal equipment currently;
and in response to receiving the positioning response information, determining the current position information of the terminal equipment according to the target differential data.
According to a third aspect of the present disclosure, there is provided a differential data processing apparatus, the apparatus being a location services device, comprising:
The first determining module is configured to determine a target network equipment identifier currently accessed by the terminal equipment in response to the positioning request information sent by the terminal equipment;
the second determining module is configured to determine differential data corresponding to the target network equipment identifier based on predetermined differential data association information to obtain target differential data;
the first sending module is configured to generate positioning response information according to the target differential data and send the positioning response information to the terminal equipment, wherein the positioning response information is used for enabling the terminal equipment to determine current position information of the terminal equipment according to the target differential data.
Optionally, the second determining module is configured to:
determining a target grid area corresponding to the target network equipment identifier in a predetermined corresponding relation table of network equipment and the grid area, wherein the grid area is obtained after the positioning service area is rasterized;
and acquiring differential data of the target grid region in the differential grid data acquired in advance to obtain target differential data, wherein the differential grid data comprises a plurality of grid region coordinates and differential data of each grid region.
Optionally, the apparatus further includes: a first relationship table establishing means configured to:
responding to the differential raster data sent by the differential data service equipment, and obtaining the differential raster data;
and determining the grid area corresponding to each optional network device according to the grid area coordinates and the device information of the optional network devices to obtain a corresponding relation table of the network devices and the grid areas.
Optionally, the device information includes optional network device coordinates and optional network device identifiers, and the first relation table establishing device is configured to:
for each optional network device, determining a plurality of location distance values according to the optional network device coordinates and each grid region coordinate;
if the minimum distance value in the plurality of position distance values is smaller than or equal to a preset distance threshold value, determining a grid area associated with the minimum distance value as a grid area corresponding to the optional network equipment;
establishing the selectable network equipment identifier and the corresponding relation of the grid area corresponding to the selectable network equipment, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area.
Optionally, the device information includes an antenna azimuth angle of the network device, and the apparatus further includes: a second relationship table establishing means configured to:
if the minimum distance value in the plurality of position distance values is larger than a preset distance threshold value, arranging the plurality of position distance values in a sequence from small to large to obtain a position distance value sequence, and sequentially selecting a preset number of target position distance values in the position distance value sequence by taking the minimum position distance value as a starting point;
determining a plurality of alternative azimuth angles according to the optional network equipment coordinates and grid area coordinates associated with each target position distance value;
determining a grid area associated with a target alternative azimuth angle as a grid area corresponding to the optional network device, wherein the target alternative azimuth angle is an alternative azimuth angle with the smallest difference value with the antenna azimuth angle of the network device in a plurality of alternative azimuth angles;
establishing the selectable network equipment identifier and the corresponding relation of the grid area corresponding to the selectable network equipment, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area.
According to a fourth aspect of the present disclosure, there is provided a differential data processing apparatus, the apparatus being a terminal device, comprising:
The second sending module is configured to respond to a positioning service request and send positioning request information to positioning service equipment, wherein the positioning request information is used for indicating the positioning service equipment to return target differential data corresponding to target network equipment identification according to the target network equipment identification currently accessed by the terminal equipment;
and a third determining module configured to determine current location information of the terminal device according to the target differential data in response to receiving the positioning response information.
According to a fifth aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the method of the first or second aspect.
According to a sixth aspect of the present disclosure, there is provided an electronic device comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the method of the first or second aspect via execution of executable instructions.
The technical scheme of the present disclosure has the following beneficial effects:
the differential data processing method, the differential data processing device, the differential data processing medium and the electronic equipment are provided, the positioning service equipment can determine target differential data required by the terminal equipment without acquiring initial positioning information sent by the terminal equipment, and the data transmission quantity between the terminal equipment and the positioning service equipment is reduced; and a link for transmitting initial positioning information is not required to be established, so that network resource consumption is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely some embodiments of the present disclosure and that other drawings may be derived from these drawings without undue effort.
FIG. 1 shows a schematic architecture diagram of a differential data processing system in the present exemplary embodiment;
fig. 2 shows a flowchart of a differential data processing method in the present exemplary embodiment;
fig. 3 is a flowchart illustrating a method for determining differential data association information in the present exemplary embodiment;
FIG. 4 illustrates a flow chart of a method of determining a plurality of alternative azimuth angles in the present exemplary embodiment;
fig. 5 shows a schematic view of a grid area in the present exemplary embodiment;
fig. 6 shows a flowchart of another differential data processing method in the present exemplary embodiment;
Fig. 7 shows an interactive flowchart of a differential data processing method in the present exemplary embodiment;
fig. 8 is a schematic diagram showing a configuration of a differential data processing apparatus in the present exemplary embodiment;
fig. 9 is a schematic diagram showing the structure of another differential data processing apparatus in the present exemplary embodiment;
fig. 10 shows a schematic structural diagram of an electronic device in the present exemplary embodiment.
Detailed Description
Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
The flow diagrams depicted in the figures are exemplary only and not necessarily all steps are included. For example, some steps may be decomposed, and some steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
In the related art, a processing scheme of differential data has appeared. When the terminal equipment needs to be positioned, an initial positioning result can be sent to a positioning service center through a special link so as to acquire differential data corresponding to the initial positioning result of the terminal equipment; and finally, the terminal equipment can correct the initial positioning information according to the differential data so as to determine a final positioning result.
The initial positioning result needs to be sent through a special link, which causes the network resource overhead of the terminal device and the positioning service center to be increased and causes the network resource waste.
In view of the foregoing, exemplary embodiments of the present disclosure provide a differential data processing method, which is directed to a terminal device positioning service. The application scenarios of the differential data processing method include, but are not limited to: in the positioning service of the terminal equipment, the terminal equipment can send positioning request information to the positioning service equipment, and the positioning service equipment can respond to the target network equipment identifier which is accessed according to the terminal equipment currently and return target differential data corresponding to the target network equipment identifier; and the terminal equipment determines the current position information of the terminal equipment according to the target differential data and the initial positioning result. The terminal equipment does not need to report the initial positioning result of the terminal equipment to the positioning service equipment, so that the resource cost between the terminal equipment and the positioning service equipment can be reduced, and the network resource cost is reduced.
To implement the above-described traffic processing method, exemplary embodiments of the present disclosure provide a differential data processing system. Fig. 1 shows a schematic architecture diagram of the differential data processing system. As shown in fig. 1, differential data processing system 100 may include a terminal device 110, a location services device 120, a differential data services device 130, and a network services device 140. The terminal device 110 may be a terminal device with a location service, for example, a mobile phone, a notebook, a vehicle-mounted device, a wearable device, etc., and the location service device 120 may be a server providing a location-related service; the differential data service device 130 may be a server providing differential data information to the location service device 120, and the network service device 140 may be an operator-deployed server providing device information of a plurality of optional network devices that may provide communication services to the location service device 120; the terminal device 110, the differential data service device 130 and the network service device 140 respectively establish network connection with the positioning service device 120 to implement differential data processing service.
The differential data processing method will be described from the point of view of the location service device. Fig. 2 illustrates an exemplary flow of a differential data processing method performed by a location services device, which may include:
step S201, in response to the positioning request information sent by the terminal equipment, determining the target network equipment identifier currently accessed by the terminal equipment;
in the embodiment of the disclosure, the target network equipment identifier is a cell identifier for providing service for the terminal equipment in a base station accessed by the terminal equipment;
step S202, determining differential data corresponding to a target network equipment identifier based on predetermined differential data association information to obtain target differential data;
in the embodiment of the disclosure, the target differential data is differential data needed by the terminal equipment for determining the current position information.
Step S203, positioning response information is generated according to the target differential data, and the positioning response information is sent to the terminal equipment.
In the embodiment of the disclosure, the positioning response information is used for enabling the terminal equipment to determine the current position information of the terminal equipment according to the target differential data.
In summary, according to the differential data processing method provided by the embodiment of the present disclosure, after the positioning request information sent by the terminal device is obtained, the target differential data may be determined according to the target network device identifier currently accessed by the terminal device, and the target differential data is sent to the terminal device, so that the terminal device determines the current location information of the terminal device according to the target differential data. The positioning service equipment can determine target differential data required by the terminal equipment without acquiring initial positioning information sent by the terminal equipment, so that the data transmission quantity between the terminal equipment and the positioning service equipment is reduced; and a link for transmitting initial positioning information is not required to be established, so that network resource consumption is reduced.
Each step in fig. 2 is described in detail below:
in the above step S201, the location service device may determine, in response to the location request information sent by the terminal device, the target network device identifier currently accessed by the terminal device.
In the embodiment of the disclosure, the positioning request information is used for indicating the positioning service equipment to determine target differential data according to the target network equipment identifier currently accessed by the terminal equipment; the target differential data is differential data needed by the terminal equipment for determining the current position information; the target network device identifier may be a serving cell identifier of a base station to which the terminal device accesses, where the serving cell identifier provides a communication service for the terminal device.
It may be appreciated that, in the embodiment of the present disclosure, the terminal device may send location request information to the location service device in response to a location service request, where the location service request may be generated by the terminal device in response to an operation of a location service application carried in the terminal device, or generated by the terminal device in response to a third party application in the terminal device after the acquired location acquisition request agrees to the operation, and the third party application may be a social application, a short video application, or a shopping application.
In an optional implementation manner, the location request information may carry the target network device identifier, and the process of determining, by the location service device, the target network device identifier currently accessed by the terminal device in response to the location request information sent by the terminal device may include: the positioning service device may respond to the positioning request information sent by the terminal device, parse the positioning request information, and obtain the target network device identifier.
In an optional implementation manner, the location request information may carry a terminal device identifier, and the process of determining, by the location service device, the target network device identifier currently accessed by the terminal device in response to the location request information sent by the terminal device may include: the positioning service device can respond to the positioning request information sent by the terminal device, analyze the positioning request information, acquire the terminal device identification, and acquire the target network device identification currently accessed by the terminal device in the network service device according to the terminal device identification.
In the step S202, the location service device may determine the differential data corresponding to the target network device identifier based on the predetermined differential data association information, so as to obtain the target differential data.
In the embodiment of the disclosure, the differential data association information is used for the positioning service device to determine differential data corresponding to the target network device identifier, and the target differential data is differential data needed by the terminal device to determine the current position information.
It should be noted that, in the embodiment of the present disclosure, before determining, in response to positioning request information sent by the terminal device, the target network device identifier currently accessed by the terminal device, the positioning service device may further determine differential data association information, where the differential data association information may include: the grid data comprises a plurality of grid area coordinates and differential data of each grid area; the location service area is an area where an operator can provide location services.
In an alternative embodiment, as shown in fig. 3, the process of determining the differential data association information by the location service device may include steps S301 to S302:
step S301, differential raster data is obtained in response to receiving the differential raster data sent by the differential data service equipment;
In the embodiment of the disclosure, the differential data service device may rasterize the positioning service area to obtain a plurality of grid areas, and determine differential data and grid area coordinates of each grid area according to the position information of the reference station and the differential data provided by the reference station, so as to obtain differential grid data. Wherein the grid length of the grid region may be determined based on actual needs, which is not limited by the embodiments of the present disclosure.
In an alternative embodiment, the differential data service device may send differential raster data to the location service device, where the location service device obtains the differential raster data in response to receiving the differential raster data sent by the differential data service device.
It should be noted that, in the embodiment of the present disclosure, the differential data is determined by the satellite positioning information and the already-located position information of the reference station, where the satellite positioning information may be affected by an orbit error, a clock error, an atmospheric influence, a multipath effect, and other factors, and therefore, the differential data may also change with time, and the differential data service device may determine updated differential data of each grid area according to a preset period, obtain updated differential grid data, and send the updated differential grid data to the positioning service device.
Step S302, determining a grid area corresponding to each optional network device according to the coordinates of the grid areas and the device information of the optional network devices, and obtaining a corresponding relation table of the network devices and the grid areas.
In the embodiment of the present disclosure, the table of correspondence between network devices and grid areas is used to record, the grid area corresponding to each network device, where the grid area corresponding to the network device indicates the grid area with the closest position distance between the grid center and the network device, so that after receiving the positioning request sent by the terminal device, the positioning service device may send differential data of the grid area closest to the target network device currently accessed by the terminal device to the terminal device, so that the terminal device may obtain more accurate determination of the current position information. The optional network device is a network device deployed within a location service area, e.g., a base station.
In an optional embodiment, if the device information includes optional network device coordinates and optional network device identifiers, the process of determining, by the location service device, a grid area corresponding to each of the optional network devices according to the plurality of grid area coordinates and the device information of the plurality of optional network devices, and obtaining a table of correspondence between the network devices and the grid areas may include: for each optional network device, determining a plurality of location distance values according to the optional network device coordinates and each grid region coordinate; if the minimum distance value in the plurality of position distance values is smaller than or equal to a preset distance threshold value, determining a grid area associated with the minimum distance value as a grid area corresponding to the optional network equipment; and establishing the selectable network equipment identifier and the corresponding relation between the selectable network equipment and the grid area, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area. The grid area corresponding to each network device can be rapidly determined based on the position of the grid area and the position distance value determined by the position information of the optional network device, and the establishment efficiency of the corresponding relation table is improved.
The location distance value may be determined based on a first formula:
in the first formula, S i,j X is the position distance value of the jth optional network equipment coordinate and the ith grid area coordinate i X is the abscissa of the ith grid region j Abscissa, Y, for j selectable network devices i Is the ordinate of the ith grid area, Y j Is the ordinate of j alternative network devices.
The preset distance value may be m/2-n, where m is a side length of the grid associated with the minimum distance value, n is a preset value, and n may be determined based on actual needs, which is not limited in the embodiments of the present disclosure. And determining the grid area associated with the minimum distance value as the grid area corresponding to the optional network device, wherein the minimum distance value in the plurality of position distance values is smaller than or equal to a preset distance threshold value, which indicates that the optional network device is close to the grid area associated with the minimum distance value, and then the center of the grid area associated with the minimum distance value is closest to the optional network device.
In an optional implementation manner, the device information may further include an antenna azimuth angle of the network device, and if the location service device determines that a minimum distance value of the plurality of location distance values is greater than a preset distance threshold, arranging the plurality of location distance values in order from small to large to obtain a location distance value sequence, and sequentially selecting a preset number of target location distance values in the location distance value sequence with the minimum location distance value as a starting point; determining a plurality of alternative azimuth angles according to the optional network equipment coordinates and grid area coordinates associated with each target position distance value; determining a grid region associated with the target alternative azimuth angle as a grid region corresponding to the selectable network device; establishing an optional network equipment identifier and a corresponding relation of a grid area corresponding to the optional network equipment, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area, wherein the target alternative azimuth angle is an alternative azimuth angle with the smallest difference value with the antenna azimuth angle of the network equipment in a plurality of alternative azimuth angles; the selection of the preset number may be determined based on actual needs, which are not limited by the embodiments of the present disclosure. When the position information cannot determine the grid area corresponding to the optional network device, the corresponding relation of the grid area corresponding to the optional network device can be further obtained through the azimuth information, so that the reliability of obtaining the corresponding relation table is improved.
In an alternative embodiment, as shown in fig. 4, the process of determining the plurality of alternative azimuth angles by the location service device according to the alternative network device coordinates and the grid area coordinates associated with each target location distance value may include steps S401 to S403:
step S401, connecting the coordinates of the selectable network equipment with the coordinates of each target grid area to obtain a plurality of alternative azimuth angles;
step S402, determining a plurality of reference angles according to the optional network equipment coordinates and each target grid area coordinate;
in the disclosed embodiments, the reference angle is used to assist in determining a specific angle value for the alternative azimuth angle.
In an alternative embodiment, the process of determining the plurality of reference angles by the location service device according to the optional network device coordinates and each target grid area coordinate may include: determining a plurality of reference angles according to the optional network equipment coordinates and each target grid area coordinate, and a second formula, wherein the second formula is as follows:
in the second formula, δ i,j For the reference angle of the jth optional network device coordinate and the ith target grid area coordinate, X' i X is the abscissa of the ith target grid region j Abscissa, Y 'for j selectable network devices' i Is the ordinate of the ith target grid area, Y j Is the ordinate of j alternative network devices.
Step S403, determining an alternative azimuth angle associated with each target grid region coordinate according to the quadrant information of the alternative azimuth angle associated with each target grid region coordinate and the reference angle, so as to obtain a plurality of alternative azimuth angles.
In an embodiment of the present disclosure, the quadrant information of the candidate azimuth is used to indicate a quadrant in which the candidate azimuth is located in a coordinate system in which the grid region is located, and the target grid region coordinates are grid region coordinates associated with the target position distance value.
It should be noted that, in the embodiment of the present disclosure, for each alternative azimuth, a first difference value between an abscissa of the alternative network device and an abscissa of the target grid area in the alternative network device coordinates and the target grid area coordinates associated with the alternative azimuth may be determined, and a second difference value between an ordinate of the alternative network device and an ordinate of the target grid area may be determined, where if the first difference value and the second difference value are both positive numbers, the alternative azimuth is determined to be located in the first quadrant; if the first difference value is positive and the second difference value is negative, determining that the alternative azimuth angle is positioned in the second quadrant; if the first difference value and the second difference value are both negative numbers, determining that the alternative azimuth angle is positioned in the third quadrant; if the first difference value is a negative number and the second difference value is a positive number, determining that the alternative azimuth angle is located in the fourth quadrant; quadrant information for each alternative azimuth may be obtained.
In an alternative embodiment, the process of determining the alternative azimuth angle associated with each target grid area coordinate by the location service device according to the quadrant information of the alternative azimuth angle associated with each target grid area coordinate and the reference angle may include: for each grid region coordinate, if the first quadrant of the alternative azimuth position associated with the target grid region coordinate is determined, determining a reference angle associated with the target grid region coordinate as the alternative azimuth angle associated with the target grid region coordinate; if the second quadrant of the alternative azimuth position associated with the target grid region coordinate is determined, determining a first reference value and a first angle difference value of the reference angle associated with the target grid region coordinate as alternative azimuth angles associated with the target grid region coordinate; if the third quadrant of the alternative azimuth position associated with the target grid region coordinate is determined, determining the first reference value and the sum value of the reference angles associated with the target grid region coordinate as the alternative azimuth angle associated with the target grid region coordinate; if the fourth quadrant of the alternative azimuth position associated with the target grid region coordinate is determined, a second reference value and a second angle difference value of the reference angle associated with the target grid region coordinate are determined as alternative azimuth angles associated with the target grid region coordinate, wherein the first reference value is 180 degrees and the second reference value is 360 degrees.
For example, for the jIndividual selectable network device coordinates (X j ，Y j ) If the positioning service device determines that the minimum distance value in the plurality of position distance values is greater than the preset distance threshold, arranging the plurality of position distance values in order from small to large to obtain a position distance value sequence, sequentially selecting 4 target position distance values from the position distance value sequence by taking the minimum position distance value as a starting point, and determining grid region coordinates corresponding to each target position distance value comprises: grid region coordinates (Xa, ya) of the grid region a; grid region coordinates (Xb, yb) of the grid region b; grid region coordinates (Xc, yc) of the grid region c, and grid region coordinates (Xd, yd) of the grid region d, as shown in fig. 5.
Further, the positioning service device may connect the j-th optional network device coordinate with the grid region coordinate (Xa, ya), the grid region coordinate (Xb, yb), the grid region coordinate (Xc, yc), and the grid region coordinate (Xd, yd), respectively, to obtain 4 alternative azimuth angles; and based on a second formula according to the j-th alternative network device coordinates (X j ，Y j ) Obtaining 4 reference angles with each target grid region coordinate, including: reference angle delta associated with grid region coordinates (Xa, ya) a,j The method comprises the steps of carrying out a first treatment on the surface of the Reference angle delta associated with grid region coordinates (Xb, yb) b,j The method comprises the steps of carrying out a first treatment on the surface of the Reference angle delta associated with grid region coordinates (Xc, yc) c,j And a reference angle delta associated with grid region coordinates (Xd, yd) d,j 。
Further, quadrant information of the 4 candidate azimuth angles can be determined and based on the reference angle delta associated with the grid region coordinates (Xa, ya) a,j And quadrant information of the alternative azimuth angle, determining an alternative azimuth angle Va; according to a reference angle delta associated with grid region coordinates (Xb, yb) b,j And quadrant information of the alternative azimuth angle, determining an alternative azimuth angle Vb; according to a reference angle delta associated with grid region coordinates (Xc, yc) c,j And quadrant information of the alternative azimuth angle, determining an alternative azimuth angle Vc; and, according to a reference angle delta associated with the grid region coordinates (Xd, yd) d,j And quadrant information of the alternative azimuth angle, determining an alternative azimuth angle Vd.
In an alternative embodiment, the process of determining, by the location service device, the differential data corresponding to the target network device identifier based on the predetermined differential data association information, to obtain the target differential data may include: determining a target grid area corresponding to the target network equipment identifier in a predetermined corresponding relation table of the network equipment and the grid area; and acquiring differential data of a target grid area from the differential grid data acquired in advance to obtain target differential data. According to the association information of the predetermined differential data, the target differential data corresponding to the target network equipment identifier can be rapidly acquired, and the efficiency of acquiring the target differential data is improved.
It should be noted that, in the embodiment of the present disclosure, when the positioning service device obtains the updated differential raster data sent by the differential data service device, the last obtained differential raster data is updated to obtain the latest differential raster data, and after receiving the positioning request sent by the terminal device, the latest target differential data may be sent to the terminal device, so as to further improve the accuracy of the current position information determined by the terminal device.
In the above step S203, the location service device may generate location response information according to the target differential data, and transmit the location response information to the terminal device.
In the embodiment of the disclosure, the positioning response information is used for enabling the terminal equipment to determine the current position information of the terminal equipment according to the target differential data.
In an alternative embodiment, the location service device generates location response information according to the target differential data, and sends the location response information to the terminal device, so that the current location information of the terminal device is determined according to the target differential data.
The differential data processing method will be described below from the point of view of the terminal device. Fig. 6 shows an exemplary flow of the differential data processing method performed by the terminal device, and may include steps S601 to S602:
Step S601, positioning request information is sent to positioning service equipment in response to a positioning service request;
in this embodiment, the positioning request information is used to instruct the positioning service device to return, according to the target network device identifier currently accessed by the terminal device, target differential data corresponding to the target network device identifier;
the process of sending the positioning request information to the positioning service device by the terminal device in response to the positioning service request may refer to the above embodiment, and this will not be described in detail in the embodiments of the present disclosure.
Step S602, in response to receiving the positioning response information, determining the current position information of the terminal equipment according to the target differential data.
In an embodiment of the present disclosure, the positioning response information is generated by the positioning service device according to the target differential data.
In an alternative embodiment, the process of determining, by the terminal device, the current location information of the terminal device according to the target differential data in response to receiving the location response information may include: analyzing the positioning response information to obtain target differential data, and obtaining the current position information of the terminal equipment according to the target differential data and the initial positioning result of the terminal equipment.
In summary, according to the differential data processing method provided by the embodiment of the present disclosure, the terminal device does not need to send initial positioning information to the positioning service device, and the positioning service device can determine target differential data required by the terminal device according to the target network device identifier currently accessed by the terminal device, so that the data transmission amount between the terminal device and the positioning service device is reduced; and a link for transmitting initial positioning information is not required to be established, so that network resource consumption is reduced.
The embodiment of the disclosure provides an interactive flowchart of a differential data processing method, which can be applied to a differential data processing system shown in fig. 1, and as shown in fig. 7, the differential data processing method includes steps S701 to S707:
step S701, differential raster data is sent to a positioning service device by a differential data service device;
step S702, positioning service equipment acquires equipment information of a plurality of selectable network equipment from network service equipment;
step S703, the positioning service device determines differential data association information according to the differential raster data and the device information of a plurality of optional network devices;
step S704, the terminal equipment sends positioning request information to the positioning service equipment;
step S705, the positioning service device responds to the positioning request information sent by the terminal device, and determines differential data corresponding to the target network device identifier currently accessed by the terminal device based on the predetermined differential data association information to obtain target differential data;
step S706, the positioning service equipment generates positioning response information according to the target differential data and sends the positioning response information to the terminal equipment;
in step S707, the terminal device determines current location information of the terminal device according to the target differential data in response to receiving the positioning response information.
Wherein, the process of the terminal device determining the current position information of the terminal device according to the target differential data may include: the terminal equipment analyzes the positioning response information to obtain target differential data, and obtains the current position information of the terminal equipment according to the target differential data and the initial positioning result of the terminal equipment.
An embodiment of the present disclosure provides a differential data processing apparatus, as shown in fig. 8, where the differential data processing apparatus is a location service device, and the differential data processing apparatus 800 includes:
a first determining module 801, configured to determine, in response to positioning request information sent by the terminal device, a target network device identifier currently accessed by the terminal device;
a second determining module 802, configured to determine, based on predetermined differential data association information, differential data corresponding to the target network device identifier, to obtain target differential data;
a first sending module 803 configured to generate positioning response information according to the target differential data, and send the positioning response information to the terminal device, where the positioning response information is used to enable the terminal device to determine current location information of the terminal device according to the target differential data.
Optionally, the second determining module 802 is configured to:
determining a target grid area corresponding to the target network equipment identifier in a predetermined corresponding relation table of the network equipment and the grid area, wherein the grid area is obtained after the positioning service area is rasterized;
and acquiring differential data of a target grid region from the differential grid data acquired in advance to obtain target differential data, wherein the differential grid data comprises a plurality of grid region coordinates and differential data of each grid region.
Optionally, as shown in fig. 8, the differential data processing 800 further includes: a first relationship table establishment module 804 configured to:
responding to the differential raster data sent by the differential data service equipment to obtain the differential raster data;
and determining the grid area corresponding to each optional network device according to the coordinates of the grid areas and the device information of the optional network devices to obtain a corresponding relation table of the network devices and the grid areas.
Optionally, the device information includes optional network device coordinates and optional network device identifiers, and the first relationship table establishing module 804 is configured to:
for each optional network device, determining a plurality of location distance values according to the optional network device coordinates and each grid region coordinate;
If the minimum distance value in the plurality of position distance values is smaller than or equal to a preset distance threshold value, determining a grid area associated with the minimum distance value as a grid area corresponding to the optional network equipment;
and establishing the selectable network equipment identifier and the corresponding relation between the selectable network equipment and the grid area, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area.
Optionally, the device information includes an antenna azimuth angle of the network device, as shown in fig. 8, and the differential data processing 800 further includes: a second relationship table establishment module 805 configured to:
if the minimum distance value in the plurality of position distance values is larger than a preset distance threshold value, arranging the plurality of position distance values in a sequence from small to large to obtain a position distance value sequence, and sequentially selecting a preset number of target position distance values in the position distance value sequence by taking the minimum position distance value as a starting point;
determining a plurality of alternative azimuth angles according to the optional network equipment coordinates and grid area coordinates associated with each target position distance value;
determining a grid area associated with a target alternative azimuth angle as a grid area corresponding to the optional network device, wherein the target alternative azimuth angle is an alternative azimuth angle with the smallest difference value with the antenna azimuth angle of the network device in a plurality of alternative azimuth angles;
And establishing the selectable network equipment identifier and the corresponding relation between the selectable network equipment and the grid area, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area.
An embodiment of the present disclosure provides a differential data processing apparatus, where the differential data processing apparatus is a terminal device, as shown in fig. 9, a differential data processing apparatus 900 includes:
the second sending module 901 is configured to respond to a positioning service request, send positioning request information to the positioning service device, where the positioning request information is used to instruct the positioning service device to return target differential data corresponding to a target network device identifier according to the target network device identifier currently accessed by the terminal device;
a third determining module 902 is configured to determine current location information of the terminal device according to the target differential data in response to receiving the positioning response information.
Exemplary embodiments of the present disclosure also provide a computer readable storage medium, which may be implemented in the form of a program product comprising program code for causing an electronic device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the above section of the "exemplary method" when the program product is run on the electronic device. In one embodiment, the program product may be implemented as a portable compact disc read only memory (CD-ROM) and includes program code and may be run on an electronic device, such as a personal computer. However, the program product of the present disclosure is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).
The exemplary embodiments of the present disclosure also provide an electronic device, which may be a terminal device or a location service device. The electronic device is explained below with reference to fig. 10. It should be understood that the electronic device 1000 shown in fig. 10 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.
As shown in fig. 10, the electronic device 1000 is embodied in the form of a general purpose computing device. Components of electronic device 1000 may include, but are not limited to: at least one processing unit 1010, at least one memory unit 1020, and a bus 1030 that connects the various system components, including the memory unit 1020 and the processing unit 1010.
Wherein the storage unit stores program code that is executable by the processing unit 1010 such that the processing unit 1010 performs steps according to various exemplary embodiments of the present invention described in the above section of the "exemplary method" of the present specification. For example, the processing unit 1010 may perform the method steps shown in fig. 2 to 4, etc.
The memory unit 1020 may include volatile memory units such as a random access memory unit (RAM) 1021 and/or a cache memory unit 1022, and may further include a read only memory unit (ROM) 1023.
Storage unit 1020 may also include a program/utility 1024 having a set (at least one) of program modules 1025, such program modules 1025 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 1030 may include a data bus, an address bus, and a control bus.
The electronic device 1000 can also communicate with one or more external devices 1100 (e.g., keyboard, pointing device, bluetooth device, etc.) via input/output (I/O) interface 1040. Electronic device 1000 can also communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, e.g., the Internet, through network adapter 1050. As shown, network adapter 1050 communicates with other modules of electronic device 1000 via bus 1030. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with the electronic device 1000, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with exemplary embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A differential data processing method, wherein the method is applied to a location service device, and comprises:
determining a target network equipment identifier currently accessed by the terminal equipment in response to positioning request information sent by the terminal equipment;
determining differential data corresponding to the target network equipment identifier based on predetermined differential data association information to obtain target differential data;
and generating positioning response information according to the target differential data, and sending the positioning response information to the terminal equipment, wherein the positioning response information is used for enabling the terminal equipment to determine the current position information of the terminal equipment according to the target differential data.
2. The method according to claim 1, wherein determining differential data corresponding to the target network device identifier based on predetermined differential data association information, to obtain target differential data, comprises:
determining a target grid area corresponding to the target network equipment identifier in a predetermined corresponding relation table of network equipment and the grid area, wherein the grid area is obtained after the positioning service area is rasterized;
and acquiring differential data of the target grid region in the differential grid data acquired in advance to obtain target differential data, wherein the differential grid data comprises a plurality of grid region coordinates and differential data of each grid region.
3. The method according to claim 2, wherein before determining the target network device identity to which the terminal device is currently accessing in response to the location request information sent by the terminal device, the method further comprises:
responding to the differential raster data sent by the differential data service equipment, and obtaining the differential raster data;
and determining the grid area corresponding to each optional network device according to the grid area coordinates and the device information of the optional network devices to obtain a corresponding relation table of the network devices and the grid areas.
4. The method according to claim 3, wherein the device information includes optional network device coordinates and optional network device identifiers, and the determining the grid area corresponding to each optional network device according to the plurality of grid area coordinates and the device information of the plurality of optional network devices, to obtain the correspondence table between the network devices and the grid areas includes:
for each optional network device, determining a plurality of location distance values according to the optional network device coordinates and each grid region coordinate;
if the minimum distance value in the plurality of position distance values is smaller than or equal to a preset distance threshold value, determining a grid area associated with the minimum distance value as a grid area corresponding to the optional network equipment;
Establishing the selectable network equipment identifier and the corresponding relation of the grid area corresponding to the selectable network equipment, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area.
5. The method of claim 4, wherein the device information comprises an antenna azimuth angle of a network device, the method further comprising:
if the minimum distance value in the plurality of position distance values is larger than a preset distance threshold value, arranging the plurality of position distance values in a sequence from small to large to obtain a position distance value sequence, and sequentially selecting a preset number of target position distance values in the position distance value sequence by taking the minimum position distance value as a starting point;
determining a plurality of alternative azimuth angles according to the optional network equipment coordinates and grid area coordinates associated with each target position distance value;
determining a grid area associated with a target alternative azimuth angle as a grid area corresponding to the optional network device, wherein the target alternative azimuth angle is an alternative azimuth angle with the smallest difference value with the antenna azimuth angle of the network device in a plurality of alternative azimuth angles;
establishing the selectable network equipment identifier and the corresponding relation of the grid area corresponding to the selectable network equipment, and storing the corresponding relation in a corresponding relation table of the network equipment and the grid area.
6. A differential data processing method, wherein the method is applied to a terminal device, and comprises:
responding to a positioning service request, and sending positioning request information to positioning service equipment, wherein the positioning request information is used for indicating the positioning service equipment to return target differential data corresponding to target network equipment identification according to the target network equipment identification accessed by terminal equipment currently;
and in response to receiving the positioning response information, determining the current position information of the terminal equipment according to the target differential data.
7. A differential data processing apparatus, the apparatus being a location services device, comprising:
the first determining module is configured to determine a target network equipment identifier currently accessed by the terminal equipment in response to the positioning request information sent by the terminal equipment;
the second determining module is configured to determine differential data corresponding to the target network equipment identifier based on predetermined differential data association information to obtain target differential data;
the first sending module is configured to generate positioning response information according to the target differential data and send the positioning response information to the terminal equipment, wherein the positioning response information is used for enabling the terminal equipment to determine current position information of the terminal equipment according to the target differential data.
8. A differential data processing apparatus, wherein the apparatus is a terminal device, comprising:
the second sending module is configured to respond to a positioning service request and send positioning request information to positioning service equipment, wherein the positioning request information is used for indicating the positioning service equipment to return target differential data corresponding to target network equipment identification according to the target network equipment identification currently accessed by the terminal equipment;
and a third determining module configured to determine current location information of the terminal device according to the target differential data in response to receiving the positioning response information.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method of any one of claims 1 to 5 or claim 6.
10. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the method of any one of claims 1 to 5 or claim 6 via execution of the executable instructions.
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