CN113596722A - Method for generating and serving adjacent user data product sharing MCBI - Google Patents
Method for generating and serving adjacent user data product sharing MCBI Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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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- H04W4/025—Services making use of location information using location based information parameters
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Abstract
The application discloses a method for generating and serving a neighboring user data product sharing MCBI, which comprises the following steps: a first user login request is input into a master user list, MCBI data of user position information are generated, and service is provided; in the subsequent new user login request, the new user coordinates are compared with the master user position list coordinates one by one, the Length is less than or equal to 5000m, and the MCBI data product of the master user is used for providing service; otherwise, inputting a master user list to generate an MCBI data product providing service; when a certain user is disconnected, judging that the user does not belong to the master user list, and directly disconnecting the user; judging the existence of sub-users, inputting a master user list by a first sub-user, removing the user from the master user list, and disconnecting the connection; and judging that no sub-user exists, removing the user from the master user list, and disconnecting the connection. By judging the user distance, the data products are shared between adjacent users, the calculation amount of the system for calculating the position information of each user is greatly reduced, and the service precision of all users is ensured.
Description
Technical Field
The application relates to the technical field of satellite navigation positioning data processing, in particular to a method for generating and serving a neighboring user data product sharing MCBI.
Background
Aiming at a Continuous Operation Reference System (CORS) of the whole network in China and a CORS applied to large-scale users in the industries of traffic, surveying and mapping and the like, the CORS has the characteristics of wide service coverage range, large calculated amount and huge number of concurrent users, and the broadcasting mode commonly used by the conventional CORS is adopted, so that the server is greatly wasted, the simultaneous online use of a large number of users is limited, and the requirements of wide coverage range, large calculated amount and large number of concurrent users can not be met.
Common broadcasting modes of CORS include VRS (Virtual Reference Stations) technology, CBI (comprehensive error interpolation) technology and grid technology. The VRS technology is that various errors are calculated through baselines between a plurality of reference stations which are closest to a rover station, and a certain algorithm is adopted to eliminate or greatly weaken the influence caused by the errors; the CBI technology is that on the basis that various system errors have strong correlation in a certain area, the comprehensive error of any rover station in the area is directly interpolated through the known errors of a plurality of reference stations by using a certain algorithm; when massive users access, the calculation amount of the technology is extremely large, and a common system cannot bear the calculation amount. The grid technology divides grid points at equal intervals in a service range, establishes grids and provides services for users through the grid points, but has the defects that the grid point spacing is too small, the system calculation amount is increased, and huge calculation resources are consumed; the grid point spacing is too large, which reduces the user service accuracy.
In summary, the conventional CORS broadcasting method cannot meet the conditions of wide service coverage and extremely large number of concurrent users, and a new CORS broadcasting technology which gives consideration to both the calculation amount and the service precision is needed. Therefore, a method for generating and serving neighboring user data product sharing MCBI is proposed to solve the above problems.
Disclosure of Invention
In the embodiment, a method for generating and serving data products shared by neighboring users through MCBI (improved comprehensive error interpolation) is provided, which allows the data products to be shared between neighboring users according to the user distribution, and simultaneously considers the calculation amount and the service precision, so as to solve the problems in the prior art that the service precision of users is reduced and the calculation amount is large.
According to one aspect of the present application, there is provided a method for generating and servicing a shared MCBI for a proximity user data product, the method comprising the steps of:
step 1: user receiving first new user0The login request is used for extracting the position information color uploaded by the user0；
Step 2: entering a first user into a master user list (user)0Recording the position information into a master user position list (color)0}；
And step 3: reading double-difference error correction number information between the whole network reference stations of one epoch, generating MCBI data of user position information and providing service;
and 4, step 4: receiving the subsequent new user login usernewRequesting, extracting location information code uploaded by usernew；
And 5: code for new user position informationnewWith master user location list Coor0 Coor1…CoornComparing the coordinates in the users one by one, and calculating the distance between the users:
if the following conditions are met:
Lengthm≤5000
it indicates that the current new user has the user of the neighboring useriDirectly obtain useriAnd provide the user with a servicenewRecord as useriSub-user ofi01(ii) a If not, indicating that the current new user has no adjacent user, recording the user into a master user list { user0 user1…usern+1Recording the position information into a master user position list (color)0 Coor1…Coorn+1Reading double-error between whole network reference stations of an epochGenerating MCBI data of user position information by the difference correction number information, and providing service;
step 6: when a new user request appears, repeating the step 4 to the step 5;
and 7: when a user is disconnected, whether the user belongs to a master user list (user) is judged firstly0user1…usernDirectly disconnecting if the mobile terminal does not belong to the master user list; if the user belongs to the master user list, the user firstlyiRemoving the user from the master user list and judging the user of the useriWhether the sub-user exists or not, if so, the sub-user is usedi01Inputting a master user list; and if the sub-user does not exist, other processing is not carried out.
Through the above-mentioned embodiment of this application, this application has following advantage and beneficial effect:
(1) the invention judges whether the distance between the new user and the main user is less than or equal to 5000m, considers the coverage range and the data product precision, ensures that all users in the service range can obtain the data product, and ensures the consistency of the user service precision.
(2) The method is suitable for a system with a wide service range, judges whether a master user is input or not according to the login request of the user, only needs to calculate the master user to generate the MCBI data product, does not need to calculate the MCBI data product for 5000m around the master user and areas without the login request of the user, and greatly reduces the calculation amount of the system.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a flow chart of a first new user login request.
FIG. 2 is a flow chart of a subsequent new user login request.
Fig. 3 is a flow chart of user disconnection.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-3, the present application provides a method for generating and servicing a neighboring user data product sharing MCBI.
Referring to fig. 1, a first new user login request, a process of providing a service, includes the following steps:
step 1: user receiving first new user0The login request is used for extracting the position information color uploaded by the user0。
Step 2: entering a first user into a master user list (user)0Recording the position information into a master user position list (color)0}。
And step 3: and reading double-difference error correction number information between the whole network reference stations of one epoch, generating MCBI data of user position information, and providing service.
Referring to fig. 2, the process of providing service in the subsequent new user login request includes the following steps:
and 4, step 4: receiving the subsequent new user login usernewRequesting, extracting location information code uploaded by usernew。
And 5: code for new user position informationnewWith master user location list{Coor0 Coor1…CoornCalculating the distance between users one by one according to a formula, wherein the distance is less than or equal to 5000m, and directly providing services by using the data products of the main users. If Length is more than 5000m, the new user is usednewProcessing and providing service according to step 2 and step 3.
The method specifically comprises the following steps:
step 5.1: code for new user position informationnewReading coordinate information { Coor of whole network reference station from master user position list0 Coor1…CoornThe coordinates in the } are compared one by one.
The specific process of comparison is that the distance between the new user and the main user is calculated by a formula, and the calculation formula is as follows:
step 5.2: if the Length is less than or equal to 5000m, indicating that the user of the current new usernewUser owning adjacent master useriDirectly acquire the user of the master useriAnd provide the user with a servicenewRecord as the main useriSub-user ofi01。
Step 5.3: if not, indicating the current new usernewIf no adjacent master user exists, the new user is recorded into a master user list (user)0 user1…usern+1Recording the position information into a master user position list (color)0 Coor1…Coorn+1}。
Step 5.4: and reading double-difference error correction number information between the whole network reference stations of one epoch, generating MCBI data of user position information, and providing service.
Step 6: and when a new user request appears, repeating the step 4 to the step 5.
Referring to fig. 3, the process of disconnecting the user and removing the service by the system includes the following steps:
and 7: when a certain useriWhen disconnected, useriNot in primary useAnd (4) directly disconnecting the user list. useriBelongs to a master user list and disconnects according to the presence of a sub-user.
The method specifically comprises the following steps:
step 7.1: detect a useriDisconnecting, firstly judging the useriWhether it belongs to the master user list (user)0 user1…usern}。
Step 7.2: if not, the useriThe connection is directly disconnected.
Step 7.3: if the user belongs to the master user list, judging the useriWhether there is a child user.
Step 7.4: if no sub-user exists, the useriAnd removing the master user list and disconnecting the connection.
Step 7.5: if the sub-user exists, the sub-user is usedi01Entering a master user list, the useriAnd removing the master user list and disconnecting the connection.
The application has the advantages that:
(1) the invention judges whether the distance between the new user and the main user is less than or equal to 5000m, considers the coverage range and the data product precision, ensures that all users in the service range can obtain the data product, and ensures the consistency of the user service precision.
(2) The method is suitable for a system with a wide service range, judges whether a master user is input or not according to the login request of the user, only needs to calculate the master user to generate the MCBI data product, does not need to calculate the MCBI data product for 5000m around the master user and areas without the login request of the user, and greatly reduces the calculation amount of the system.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (4)
1. A method for generating and servicing a neighboring user data product sharing MCBI, the method comprising: the shared MCBI generation and service method comprises the following steps:
step 1: user receiving first new user0The login request is used for extracting the position information color uploaded by the user0；
Step 2: entering a first user into a master user list (user)0Recording the position information into a master user position list (color)0}；
And step 3: reading double-difference error correction number information between the whole network reference stations of one epoch, generating MCBI data of user position information and providing service;
and 4, step 4: receiving the subsequent new user login usernewRequesting, extracting location information code uploaded by usernew；
And 5: code for new user position informationnewWith master user location list Coor0 Coor1 … CoornCalculating the distance between users one by one according to a formula, wherein the distance is less than or equal to 5000m, and directly providing service by using a data product of a master user; if Length is more than 5000m, the new user is usednewProcessing and providing service according to the step 2 and the step 3;
step 6: when a new user request appears, repeating the step 4 to the step 5;
and 7: when a certain useriWhen disconnected, useriIf the mobile terminal does not belong to the master user list, the connection is directly disconnected; useriBelongs to a master user list and disconnects according to the presence of a sub-user.
2. The method of claim 1, wherein the method comprises: the step 5 specifically comprises the following steps:
step 5.1: code for new user position informationnewReading coordinate information { Coor of whole network reference station from master user position list0Coor1 … CoornComparing the coordinates in the Chinese character with the coordinates in the Chinese character are compared one by one;
and 5. step 5.2: if the Length is less than or equal to 5000m, indicating that the user of the current new usernewUser owning adjacent master useriDirectly acquire the user of the master useriAnd provide the user with a servicenewRecord as the main useriSub-user ofi01；
Step 5.3: if not, indicating the current new usernewIf no adjacent master user exists, the new user is recorded into a master user list (user)0 user1 … usern+1Recording the position information into a master user position list (color)0 Coor1 … Coorn+1}；
Step 5.4: and reading double-difference error correction number information between the whole network reference stations of one epoch, generating MCBI data of user position information, and providing service.
3. The method of claim 2, wherein the method comprises:
the specific process of comparing the coordinates one by one is that the distance between the new user and the main user is calculated by a formula, and the calculation formula is as follows:
4. the method of claim 1, wherein the method comprises: the step 7 specifically comprises the following steps:
step 7.1: detect a useriDisconnecting, firstly judging the useriWhether it belongs to the master user list (user)0 user1 … usern}；
Step 7.2: if not, the useriDirectly disconnecting the connection;
step 7.3: if the user belongs to the master user list, judging the useriWhether a child user exists;
step 7.4: if no sub-user exists, the useriRemoving the master user list and disconnecting the connection;
step 7.5: if the sub-user exists, the sub-user is usedi01Entering a master user list, the useriAnd removing the master user list and disconnecting the connection.
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