CN112261580B - Geographic position-based service access method for vehicle-mounted terminal - Google Patents
Geographic position-based service access method for vehicle-mounted terminal Download PDFInfo
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- CN112261580B CN112261580B CN202011146910.2A CN202011146910A CN112261580B CN 112261580 B CN112261580 B CN 112261580B CN 202011146910 A CN202011146910 A CN 202011146910A CN 112261580 B CN112261580 B CN 112261580B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
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- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
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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
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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Abstract
The invention belongs to the field of vehicle-mounted terminals, in particular to a service access method of a vehicle-mounted terminal based on a geographic position.
Description
Technical Field
The invention belongs to the field of vehicle-mounted terminals, and particularly relates to a service access method of a vehicle-mounted terminal based on a geographic position.
Background
The number sections of the vehicle-mounted systems are not overlapped, the user number falls into the number of which vehicle-mounted system, and the vehicle-mounted system is the home location of the user.
The rules of the prior art service access are: home based access.
As shown in fig. 1, in-vehicle system 1 (home number 1-1999), in-vehicle system 2 (home number 2000-2999), user a (number 1000, home in-vehicle system 1), and user B (number 2000, home in-vehicle system 2), when user a calls user B in non-roaming condition, in-vehicle system 1 directly sends the call request to in-vehicle system 2.
As shown in fig. 2, there are 3 onboard systems, and their home numbers are: the system comprises an on-board system 1 (home number 1-1999), an on-board system 2 (home number 2000-2999), an on-board system 3 (home number 3000-4999), and further 2 users: user a (number 1000, home in-vehicle system 1), user B (number 2000, home in-vehicle system 2); when a user B roams to the vehicle-mounted system 3, and a user A initiates a service call to the user B, the user A needs to transfer a service request to the vehicle-mounted system 2 through the vehicle-mounted system 1 and then to the vehicle-mounted system 3 to call the user B, however, the user B logs in the vehicle-mounted system and needs to transfer the service request to the vehicle-mounted system 2 through the vehicle-mounted system 3, in this case, the service is transferred once more, the efficiency is reduced, and particularly, when the communication overhead between the vehicle-mounted systems is large, for example, the vehicle-mounted systems are connected through a satellite link, the service efficiency is very low.
If user B in fig. 1 roams into the vehicle system 1, as shown in fig. 3, a and B are under the same vehicle system, but the traffic still needs to be transferred across the vehicle system, and 2 more transfers are required.
Disclosure of Invention
The technical problems solved by the invention are as follows: the invention provides a service access method of a vehicle-mounted terminal based on a geographic position, which solves the problem of low service efficiency when a user roams and further solves the problem of position information loss of a roaming user caused by network interruption.
The invention adopts the technical scheme for solving the technical problems that: a vehicle-mounted terminal service access method based on geographic position comprises the following steps:
s1, the first user belongs to a first vehicle-mounted system, the second user belongs to a second vehicle-mounted system, and the first vehicle-mounted system, the second vehicle-mounted system and the third vehicle-mounted system are mutually subscribed;
s2, if the user roams to the non-home vehicle-mounted system, when the user logs in, the vehicle-mounted system at the roaming place acquires the signing information from the home vehicle-mounted system of the user, and the user logs in the user, if the user does not roam, the user directly logs in the home vehicle-mounted system;
s3, the login service records the position information of the first user and the second user, if the user roams, the login service synchronizes the position information to the subscription vehicle-mounted system, and if the user does not roam, the login service does not synchronize the position information;
s4, when a first user service requests a second user, if the vehicle-mounted system where the first user is currently located inquires the position information of the second user, the service request is directly sent to the vehicle-mounted system where the second user is currently located, and then the vehicle-mounted system where the second user is currently located sends the service request to the second user, if the vehicle-mounted system where the first user is currently located cannot inquire the position information of the second user, then the vehicle-mounted system where the first user is currently located directly sends the service request to the vehicle-mounted system where the second user belongs, and then the vehicle-mounted system where the second user belongs sends the service request to the second user;
when a second user requests a first user through service, if the vehicle-mounted system where the second user is currently located inquires the position information of the first user, the service request is directly sent to the vehicle-mounted system where the first user is currently located, and then the vehicle-mounted system where the first user is currently located sends the service request to the first user, and if the vehicle-mounted system where the second user is currently located cannot inquire the position information of the first user, the vehicle-mounted system where the second user is currently located directly sends the service request to the vehicle-mounted system where the first user belongs, and then the vehicle-mounted system where the first user belongs sends the service request to the first user.
Further, the vehicle-mounted system subscribes, acquires the total roaming user geographical position data of the subscribed vehicle-mounted system during the first subscription, and sends the roaming user geographical position data of the subscribed vehicle-mounted system to the subscriber when the geographical position of the roaming user changes.
Further, the position information comprises a vehicle-mounted system ID, a position record updating ID, a user number, a login timestamp, a login action, a logout timestamp and a logout action; the vehicle-mounted system ID is used for identifying the vehicle-mounted system currently used; the position record updating ID is used for checking position information among the multiple vehicle-mounted systems; the user number is used for identifying the user; the login timestamp and the logout timestamp are used for determining the latest position information of the user; the login and logout actions are used to identify the user state.
Further, the vehicle-mounted system has a geographic position checking function, when the network connection is recovered after disconnection or a preset geographic position checking time is reached, the subscribed vehicle-mounted system actively initiates to send the geographic position checking information of the roaming user, including the latest position information, to the subscribed vehicle-mounted system, the subscribed vehicle-mounted system compares the received information with the received latest position information of the roaming user of the subscribed vehicle-mounted system after receiving the information, and if the position information is not equal, the subscribed vehicle-mounted system incrementally obtains the position information of the roaming user between the latest position information and the latest position information.
The invention has the beneficial effects that: the invention solves the problem of low service efficiency caused by the fact that the roaming user needs to transit the vehicle-mounted system for multiple times when requesting the service by adding the function of recording the current geographic position in the login service and synchronizing the position information of the roaming user to the subscription vehicle-mounted system, and further solves the problem of position information loss of the roaming user through the geographic position checking function.
Drawings
Fig. 1 shows a block diagram of a vehicle-mounted terminal calling a subscriber B in a non-roaming situation based on home access.
Fig. 2 is a block diagram illustrating a call made by a user a to a user B when the user B roams to a third in-vehicle system based on home access by the in-vehicle terminal.
Fig. 3 shows a block diagram of a user a calling a user B when the vehicle terminal is connected to the home location and the user B roams to the home vehicle system of the user a.
Fig. 4 is a diagram illustrating a structure in which a user a calls a user B when the user B roams to a third in-vehicle system for service access based on a geographical location of a vehicle-mounted terminal.
Figure 5 shows a flow chart for user a calling user B based on home access combined with geographic location access at the vehicle terminal.
Detailed Description
Specifically, as shown in fig. 4, in the service access process of the vehicle-mounted terminal based on the geographic location, there are three vehicle-mounted systems, wherein the home number of the vehicle-mounted system 1 is 1-1999, the home number of the vehicle-mounted system 2 is 2000-2999, the home number of the vehicle-mounted system 3 is 3000-4999, and the vehicle-mounted system 1, the vehicle-mounted system 2 and the vehicle-mounted system 3 subscribe to each other, and when subscribing for the first time, the full amount of location information of the subscribed vehicle-mounted system is obtained, and the location information of the subscribed vehicle-mounted system is sent to the subscriber when changed; there are also 2 users, wherein the number of user A is 1000, home in-vehicle system 1, the number of user B is 2000, home in-vehicle system 2; a user A logs in the vehicle-mounted system 1, and the login service records the position information of the user A, wherein the position information comprises a vehicle-mounted system ID, a position record updating ID, a user number, a login timestamp, a login action, a logout timestamp and a logout action; the vehicle-mounted system ID is used for identifying the vehicle-mounted system currently used; the position record updating ID is used for checking position information among the multiple vehicle-mounted systems; the user number is used for identifying the user; the login timestamp and the logout timestamp are used for determining the latest position information of the user; the login action and the logout action are used for identifying the user state, and the login service synchronizes the recorded position information of the user A to the vehicle-mounted system 2 and the vehicle-mounted system 3; when a user B roams to the vehicle-mounted system 3 and the user B logs in, the vehicle-mounted system 3 acquires subscription information from the vehicle-mounted system 2, the login service of the vehicle-mounted system 3 records the position information of the user B and synchronizes the position information to the vehicle-mounted system 1 and the vehicle-mounted system 2; when the user A requests the user B for the service, the vehicle-mounted system 1 inquires the position information of the user B, directly sends the service request to the vehicle-mounted system 3 where the user B is located at present, and then sends the service request to the user B through the vehicle-mounted system 3, so that the service is completed. When the user B requests the user A, namely the vehicle-mounted system 3 where the user B is located inquires the position information of the user A, the service request is directly sent to the vehicle-mounted system 1 where the user A is located, and then the vehicle-mounted system 1 sends the service request to the user A, so that the service is completed. Compared with fig. 2, the service access based on the geographic position reduces the transfer times of the vehicle-mounted system.
Further, if the user B roams to the vehicle-mounted system 3 and the user a roams to the vehicle-mounted system 2, when the user a logs in, the vehicle-mounted system 2 acquires the subscription information from the vehicle-mounted system 1, the login service of the vehicle-mounted system 2 records the position information of the user a and synchronizes the position information to the vehicle-mounted system 1 and the vehicle-mounted system 3, when the user B logs in, the vehicle-mounted system 3 acquires the subscription information from the vehicle-mounted system 2, and the login service of the vehicle-mounted system 3 records the position information of the user B and synchronizes the position information to the vehicle-mounted system 1 and the vehicle-mounted system 2; when the user A requests the user B for the service, the vehicle-mounted system 2 inquires the position information of the user B, directly sends the service request to the vehicle-mounted system 3, and then the vehicle-mounted system 3 sends the service request to the user B to finish the service. When the user B requests the user A for the service, the vehicle-mounted system 3 inquires the position information of the user A, directly sends the service request to the vehicle-mounted system 2, and then the vehicle-mounted system 2 sends the service request to the user B to finish the service.
Further, in the scenario shown in fig. 4, when the network connection of the vehicle-mounted system 3 is disconnected and then is recovered or a preset geographic location check time is reached, geographic location check information is sent to the vehicle-mounted system 1 and the vehicle-mounted system 2, where the information includes the latest location record update ID: ID 1; after the vehicle-mounted system 1 and the vehicle-mounted system 2 receive the checked message, the vehicle-mounted system 1 updates the ID with the position record received when the network is disconnected: ID2 is compared, and if ID1 and ID2 are not equal, the position record of the (ID1, ID2) interval is acquired in an incremental mode from the subscribed vehicle-mounted system.
Further, the vehicle-mounted terminal is based on an access method combining the home location access and the geographic location, specifically, the service request process is as shown in fig. 5, the user a requests the user B for the service, the vehicle-mounted system 1 where the user a is located receives the service request of the user a, the user B is inquired in the location information, if the user B is inquired, the service request is sent to the vehicle-mounted system where the user B is located, and if the user B is not inquired, the service request is sent to the home vehicle-mounted system of the user B.
Claims (4)
1. A service access method of a vehicle-mounted terminal based on a geographic position is characterized by comprising the following steps;
s1, the first user belongs to a first vehicle-mounted system, the second user belongs to a second vehicle-mounted system, and the first vehicle-mounted system, the second vehicle-mounted system and the third vehicle-mounted system are mutually subscribed;
s2, if the user roams to the non-home vehicle-mounted system, when the user logs in, the vehicle-mounted system at the roaming place acquires the signing information from the home vehicle-mounted system of the user, and the user logs in the user, if the user does not roam, the user directly logs in the home vehicle-mounted system;
s3, the login service records the position information of the first user and the second user, if the user roams, the login service synchronizes the position information to the subscription vehicle-mounted system, and if the user does not roam, the login service does not synchronize the position information;
s4, when a first user service requests a second user, if the vehicle-mounted system where the first user is currently located inquires the position information of the second user, the service request is directly sent to the vehicle-mounted system where the second user is currently located, and then the vehicle-mounted system where the second user is currently located sends the service request to the second user, if the vehicle-mounted system where the first user is currently located cannot inquire the position information of the second user, then the vehicle-mounted system where the first user is currently located directly sends the service request to the vehicle-mounted system where the second user belongs, and then the vehicle-mounted system where the second user belongs sends the service request to the second user;
when a second user requests a first user through service, if the vehicle-mounted system where the second user is currently located inquires the position information of the first user, the service request is directly sent to the vehicle-mounted system where the first user is currently located, and then the vehicle-mounted system where the first user is currently located sends the service request to the first user, and if the vehicle-mounted system where the second user is currently located cannot inquire the position information of the first user, the vehicle-mounted system where the second user is currently located directly sends the service request to the vehicle-mounted system where the first user belongs, and then the vehicle-mounted system where the first user belongs sends the service request to the first user.
2. The geographic location-based service access method of the vehicle-mounted terminal according to claim 1, wherein the vehicle-mounted system subscribes, acquires the geographic location data of the whole amount of the roaming users of the subscribed vehicle-mounted system when subscribing for the first time, and sends the geographic location data of the roaming users of the subscribed vehicle-mounted system to the subscribers when the geographic location of the roaming users of the subscribed vehicle-mounted system changes.
3. The method of claim 1, wherein the location information in step S3 includes a vehicle system ID, a location record update ID, a user number, a login timestamp, a login action, a logout timestamp, and a logout action; the vehicle-mounted system ID is used for identifying a vehicle-mounted system currently used; the position record updating ID is used for checking position information among multiple vehicle-mounted systems; the user number is used for identifying a user; the login timestamp and the logout timestamp are used for determining the latest position information of the user; the login action and the logout action are used for identifying the user state.
4. The service access method of the vehicle-mounted terminal based on the geographic location as claimed in claim 1, wherein the vehicle-mounted system has a geographic data checking function: when the network connection is recovered after disconnection or the preset geographic position check time is reached, the subscribed vehicle-mounted system actively initiates to send the geographic position check information of the roaming user to the subscribed vehicle-mounted system, wherein the geographic position check information comprises the latest position information, the subscribed vehicle-mounted system compares the received information with the received latest position information of the roaming user of the subscribed vehicle-mounted system after receiving the information, and if the position information is not equal, the position information of the roaming user between the latest position information and the latest position information is acquired to the subscribed vehicle-mounted system in an incremental mode.
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