JP7300533B1 - Wireless communication method, wireless communication device, and recording medium recording wireless communication program - Google Patents

Abstract

A wireless communication method, a wireless communication device, and a non-temporary recording medium in which a wireless communication program is recorded are provided for ensuring connection stability of wireless communication. A method performed by a processor of a device is provided. The method comprises the steps of obtaining area-related information for the device associated with a location of the device connected to the first network; determining a current location of the device from the obtained area-related information; determining the current geofence area where the device is located from the position of the device; switching the connection destination of the device from the first network to the second network when the type of the offense area is different from the type of the immediately preceding geofence area. [Selection drawing] Fig. 5

Description

The present invention relates to a wireless communication method, a wireless communication device, and a recording medium recording a wireless communication program.

In recent years, wireless communication has spread nationwide, and networks consisting of public networks deployed nationwide by wireless communication carriers and local private networks provided by regions and companies have spread to stations, It is used in various places such as factories. For this reason, devices such as mobile communication terminals have come to be equipped with a wireless LAN communication function as a standard feature in addition to a communication function with a public network.

A device that can wirelessly communicate with both a public network and a private network is configured to automatically connect to a private network access point using radio wave intensity information, communication information, etc. when the device enters a private network area.

However, implementation of such an automatic switching function in devices has not progressed. The reason is that when a device capable of wireless communication moves, the signal strength and communication are not stable. This is because the connection stability of wireless communication may be remarkably degraded, such as connection switching between access points not going well, and connection and disconnection with base stations or access points occurring frequently.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wireless communication method, a wireless communication device, and a non-temporary recording medium in which a wireless communication program is recorded to ensure connection stability of wireless communication.

To achieve the above objectives, one aspect of the disclosure is a method, executed by a processor of a device, comprising:
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the obtained area-related information;
determining a current geofence area covered by the device from the current location of the device;
The current geofence area or the previous geofence area of the device is a specific type of geofence area, and the current geofence area type is different from the previous geofence area type. sometimes switching the connection of the device from the first network to a second network;
A method comprising:

In order to achieve the above object, one aspect of the present disclosure is
A device comprising a memory for storing instructions and a processor,
By executing the instructions stored in the storage unit, the processor
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the area-related information obtained;
determining a current geofence area in which the device is located from the current location of the device;
The current geofence area or the previous geofence area of the device is a specific type of geofence area, and the current geofence area type is different from the previous geofence area type. A device that sometimes switches the connection of the device from the first network to a second network.

In order to achieve the above object, one aspect of the present disclosure is
A non-temporary recording medium in which a program executed by the processor of the device is recorded,
By the processor executing the program,
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the area-related information obtained;
determining a current geofence area in which the device is located from the current location of the device;
The current geofence area or the previous geofence area of the device is a specific type of geofence area, and the current geofence area type is different from the previous geofence area type. It is a non-temporary recording medium that sometimes switches the connection destination of the device from the first network to the second network.

According to the present invention, it is possible to provide a wireless communication method, a wireless communication device, and a non-temporary recording medium in which a wireless communication program is recorded for ensuring connection stability of wireless communication.

1 illustrates an example configuration of a network switching system, according to an embodiment of the present disclosure; 2 is an overhead view of a geofence area set by a network switching application running on the user device shown in FIG. 1; FIG. 2 is a diagram illustrating a hardware configuration of user devices that make up the network switching system of FIG. 1, according to an embodiment of the present disclosure; FIG. 2 is a block diagram illustrating an example of a functional configuration of a user device making up the network switching system of FIG. 1, according to an embodiment of the present disclosure; FIG. 2 illustrates an example processing flow performed in a user device of the network switching system shown in FIG. 1 in accordance with an embodiment of the present disclosure; An example of the data structure of a geofence table is shown. An example of the data structure of a switching logic table is shown.

[Description of the embodiment of the present invention]
First, the contents of the embodiments of the present invention will be listed and explained. One embodiment of the present invention has the following configuration.

[Configuration 1]
A method performed by a processor of a device, comprising:
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the obtained area-related information;
determining a current geofence area covered by the device from the current location of the device;
The current geofence area or the previous geofence area of the device is a specific type of geofence area, and the current geofence area type is different from the previous geofence area type. sometimes switching the connection of the device from the first network to a second network;
A method, including

[Configuration 2]
the types of geofence areas include public geofence areas, private geofence areas, and switching geofence areas;
the public geofence area is a geofence area in which radio waves from a base station connected to the first network are equal to or greater than a first predetermined power;
the private geofence area is a geofence area in which radio waves from access points connected to the second network are equal to or greater than a second predetermined power;
2. The method of configuration 1, wherein the switch geofence area is an area where the public geofence area and the private geofence area overlap.

[Configuration 3]
3. The method of configuration 2, wherein the specific type of geofence area is the switching geofence area.

[Configuration 4]
4. The method of configuration 2 or 3, wherein the switching geofence area is set as an area in which the device connects to the second network.

[Configuration 5]
5. The method of any of configurations 2-4, wherein the base station operates as either a 3G base station, a 4G base station or a 5G base station of a public mobile network.

[Configuration 6]
5. The method of any of configurations 2-4, wherein the access point operates as either a Local 5G base station, an sXGP base station, or a Wi-Fi access point of a private network.

[Configuration 7]
7. The method of any of the configurations 1-6, wherein the determined geofence area includes the current location of the device.

[Configuration 8]
The method according to any one of configurations 1 to 7, wherein the area-related information includes at least one of GPS positioning information, information from Wi-Fi access points, and information from Bluetooth communication counterpart devices.

[Configuration 9]
A priority is set for each of the GPS positioning information, the information from the Wi-Fi access point, and the information from the Bluetooth communication device, and when area-related information with a high priority is acquired, acquisition 9. The method of arrangement 8, wherein the location of the device is determined based on prioritized area-related information.

[Configuration 10]
The method according to configuration 9, wherein the GPS positioning information has the highest priority, followed by the information from the Wi-Fi access point and the information from the Bluetooth communication counterpart device.

[Configuration 11]
11. The method of any of arrangements 8-10, wherein the information from the Wi-Fi access point includes at least one of a signal strength or an SSID from the Wi-Fi access point.

[Configuration 12]
11. The method according to any one of arrangements 8 to 10, wherein the information from the Bluetooth communication counterpart device further includes at least one of signal strength from the Bluetooth communication counterpart device or tag information.

[Configuration 13]
A device comprising a memory for storing instructions and a processor,
By executing the instructions stored in the storage unit, the processor
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the area-related information obtained;
determining a current geofence area in which the device is located from the current location of the device;
The current geofence area or the previous geofence area of the device is a specific type of geofence area, and the current geofence area type is different from the previous geofence area type. A device that, at times, switches the connection of the device from the first network to a second network.

[Configuration 14]
A non-temporary recording medium in which a program executed by the processor of the device is recorded,
By the processor executing the program,
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the area-related information obtained;
determining a current geofence area in which the device is located from the current location of the device;
The current geofence area or the previous geofence area of the device is a specific type of geofence area, and the current geofence area type is different from the previous geofence area type. A non-temporary recording medium that sometimes switches the connection destination of the device from the first network to the second network.

[Details of the embodiment of the present invention]
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

A network switching system according to the present disclosure is a system that switches a connection destination communication network between a public network and a private network according to movement of a user device. It should be noted that the present disclosure is not limited to the following examples, but is indicated by the scope of the claims, and is intended to include all modifications within the meaning and scope of equivalents to the scope of the claims. be. In the following description, the same reference numerals are given to the same elements in the description of the drawings, and redundant description will not be repeated.

FIG. 1 shows an example configuration of a network switching system 100 according to an embodiment of the present disclosure. The network switching system 100 can be configured in various locations such as train stations, airports, factories, harbors, warehouses, stadiums, hospitals, construction sites, event venues, and the like. Network switching system 100 comprises a geofence server 102 and a user device 300 . The network switching system 100 determines the geofence area where the device is currently located from the device's area-related information associated with the location of the user device 300, and changes the determined geofence area as the user device moves. , a system for switching the connection destination of the user device 300 . The geofence area is set in advance by the system designer based on the area where radio waves transmitted by the base station 108 or the access point (AP) 110 reach the user device 300 . Note that FIG. 1 is simplified for purposes of illustration, and there may be one or more base stations 108, one or more APs 110, and one or more user devices 300. FIG.

A public mobile network (hereinafter also referred to as “public network”) 104 and a base station 108 that is part of this public network 104 are mobile communication services such as MVNO (Mobile Virtual Network Operator) and MNO (Mobile Network Operator). provided by carriers that provide The public network 104 is a mobile network using communication standards such as LTE (long term evolution), 3G, 4G, and 5G.

A private mobile network (hereinafter also referred to as a "private network") 106 and an AP 110 connected to this private network 106 are operated by companies operating stations, airports, shops, construction sites, ports, event venues, and sports facilities. provided. The private network 106 may be configured to allow communication within a certain range, such as within a facility or company, and may be configured not to allow connection to an external Internet or the like. The private network 106 is a mobile network using private LTE (sXGP: shared eXtended Global Platform), Local 5G, Wi-Fi, or the like. AP 110 is configured to be connectable to these private networks 106 . If the private network 106 is private LTE (sXGP) or Local 5G, these access points 110 are base stations compatible with the communication standards of the private LTE system or Local 5G system.

The AP 110 can establish a connection with the user device 300 and perform communication when radio waves transmitted by the AP 110 reach the user device 300 with a predetermined power or more. The possible range of user devices 300 that can communicate with such AP 110 is shown as area 114 in FIG. A range in which user devices 300 that can communicate with base station 108 may also be similarly defined and shown as region 112 in FIG. A region 116 is a range where the regions 112 and 114 overlap, and is a region where both the radio waves from the base station 108 and the radio waves from the access point 110 reach.

A system designer predefines geofence areas indicated by geographic coordinates surrounded by imaginary boundaries from regions 112 , 114 and 116 . Geofence server 102 is configured to manage and update information regarding this established geofence area. Geofence server 102 may be a cloud-based server. Details of the geofence area will be described with reference to FIG.

The user device 300 accepts various input operations by the user. The user device 300 is realized as a smart phone, a PDA (Personal Digital Assistant), a tablet computer, a laptop computer (so-called notebook computer), a desktop computer, or an in-vehicle device mounted on a moving object such as a forklift or an automobile. be. User device 300 may be a so-called Internet of Things (IoT) device.

User device 300 may be configured to connect to public network 104 through base station 108 or to private network 106 through AP 110 . The user device 300 can connect to the public network 104 or the private network 106 and use various cloud services.

The node 120 provides the user device 300 with device area related information related to the location of the user device 300 . In one example, node 120 is a satellite 122 of the GPS positioning system. The node 120 is not limited to the satellites 122 of the GPS positioning system, but also transmits a beacon signal of a wireless LAN access point (AP) 124 or Bluetooth (“Bluetooth” is a registered trademark, and the description of the registered trademark is omitted below). It may be a wireless device such as a Bluetooth (hereinafter also referred to as “BT”) communication counterpart device 126 or the like. The user device 300 can determine the current position of the user device 300 based on the signal from the wireless LAN AP 124 and the signal from the Bluetooth communication counterpart device 126 . GPS can measure the position of the user device 300 with high accuracy in an ideally open area, but it may not be possible to measure the position with high accuracy or not at all indoors, underground, or between tall buildings. Therefore, depending on the location of the user device 300, the user device 300 may receive signals from the GPS positioning system satellites 122 alone or in combination with the GPS positioning system satellites 122, the wireless LAN AP 124, and the Bluetooth communication counterpart device 126. may be combined to determine the position of the user device 300. This allows the user device 300 to acquire the location of the user device 300 without being obstructed by buildings or weather.

Although the AP 124 of the node 120 and the AP 110 connected to the private network 106 are shown separately in FIG. 1, they may be integrated.

FIG. 2 is an overhead view 200 of a geofence area set by a network switching application running on the user device 300 shown in FIG.

A plurality of types of geofence areas 202 , 204 , 206 (hereinafter sometimes simply referred to as “geofence areas”) are provided within the cloud service provision area 210 . Geofence areas can consist of complex polygons or lines between coordinates. Geofence areas may be defined by geographic coordinates, latitude, longitude and altitude values, but may also be defined by street addresses, road intersections, and the like. As shown in FIG. 2, the system designer can set boundaries for geofence areas configured in a variety of different shapes and sizes. For example, public geofence area 202 is generally rectangular and private geofence area 204 is generally square. A geofence area can have a two-dimensional shape as well as a three-dimensional shape.

The geofence area consists of a public mobile network geofence area (public geofence area) 202 where the radio waves from the base station 108 are at a predetermined power or more, and a private mobile network geofence area (public geofence area) where the radio waves from the AP 110 are at a predetermined power or more ( private geofence area) 204 and a switching geofence area 206.

Public geofence area 202 is set to include at least a portion of region 112 of FIG. Similarly, private geofence area 204 is established to include at least a portion of region 114 of FIG. A public geofence area 202 may overlap with a nearby private geofence area 204 . An area where the public geofence area 202 and the private geofence area 204 overlap is set as a switching geofence area 206 . Although FIG. 2 is simplified for explanation, the cloud service provision target area 210 includes one or more public geofence areas 202, one or more private geofence areas 204, and one or more switching geofence areas. A geofence area 206 can exist. The system designer assigns identifiers (Geofence Areas 1 to 3 in the example shown) to identify each of the multiple Geofence Areas, and what type (public, private, switching) each Geofence Area is. It is set in advance whether it is a geofence area.

The geofence areas 202, 204, and 206 are set based on the areas 112, 114, and 116 shown in FIG. does not have to match exactly.

According to this disclosure, when a user device 300 in motion enters or exits the switched geofence area 206, the user device 300 is served by the geofence server 102. Forced connection switching (forced handover) from the currently connected first network to the specified second network based on a predetermined switching logic. This allows the user device 300 to be located in the switched geofence area 206, which is the border area of the public or private geofence area, and maintain poor connectivity even when the signal from the base station 108 or access point 110 is weak. Switching to a network with a good communication state can be performed smoothly.

In one example, a user device 300 connected to the public network 104 via a base station 108 within a public geofence area, Geofence Area 1 , moves to Geofence Area 2 . The user device 300 forces the connection to switch from the public network 104 to the private network 106 according to switching logic previously recorded on the user device 300 or downloaded from the geofence server 102 .

<Hardware Configuration of User Device 300>
FIG. 3 is a diagram illustrating a hardware configuration of a user device 300 that makes up the network switching system 100 of FIG. 1, according to an embodiment of the present disclosure. It should be noted that FIG. 3 is not intended to limit the user device 300 of the present disclosure to any particular configuration. Various components shown in FIG. 3 may be combined, subdivided, or omitted, and additional components may be added according to particular needs.

User device 300 includes a processor 302, a memory 304, a storage 306, a communication interface (IF) 308, and a GPS receiver 310, as shown in FIG. These components of user device 300 are electrically connected to each other by communication bus 362 .

Processor 302 controls the overall operation of user device 300 . The processor 302 is realized as a device such as a CPU (Central Processing Unit) and an MPU (Micro Processing Unit). Processor 302 reads a program from storage 306, which will be described later. Then, each processor 302 develops the read program in a memory 304, which will be described later. Processor 302 executes the expanded program. As an example, processor 302 executes a series of instructions included in a program developed in memory 304 based on a signal provided to user device 300 or based on the establishment of a predetermined condition.

Memory 304 is the main memory. Memory 304 temporarily stores programs and data. The memory 304 is implemented as a storage device such as a RAM (Random Access Memory). As an example, the memory 304 provides a work area for the processor 302 by temporarily storing programs and various data read by the processor 302 from a storage 306 described later. Memory 304 stores at least an operating system. An operating system is a computer program for controlling the overall operation of user device 300 . The memory 304 also stores a network switching application program 351 (hereinafter referred to as a "switching application") for instructing switching of the network to which the user device 300 is connected, and a geofence table 352 (FIG. 6) downloaded from the geofence server 102. , and a switching logic table 353 (FIG. 7).

Storage 306 is an auxiliary storage device. Storage 306 permanently holds programs and data. The storage 306 includes, for example, a ROM (Read-Only Memory), a hard disk drive, a flash memory, and other non-volatile storage devices, a RAM (Random Access Memory), and other volatile storage devices, or both. It is realized as a recording device provided with. The storage 306 stores, for example, programs and the like for realizing communication with other computers and the like.

The communication IF 308 controls transmission and reception of various data between the user device 300 and various devices capable of communicating with each other according to a predetermined communication protocol. The communication IF 308 supports communication on a wireless network with various devices (geofence server 102 and cloud application server (not shown)). Also, the communication IF may support short-range communication with an external device using wireless LAN (Wi-Fi) or short-range wireless communication technology such as Bluetooth.

GPS receiver 310 obtains distance measurements between user device 300 , which is GPS receiver 310 , and satellites 122 and uses the distance measurements to determine the position of user device 300 .

The user device 300 may include a SIM (Subscriber Identity Module) card that stores subscriber information and the like. If the private network is Local 5G or sXGP, the SIM card can store Local 5G SIM information and sXGP SIM information used for connection with the private network 106, respectively.

<Functional Configuration of User Device 300>
FIG. 4 is a block diagram illustrating an example functional configuration of a user device 300 that makes up the network switching system 100 of FIG. 1, according to an embodiment of the present disclosure.

The user device 300 has a function of acquiring or reading the geofence table 352 and the switching logic table 353, a function of determining the current position of the user device 300, and a function of determining the geofence area from the position information of the current value. and a function of determining whether to switch the connected network. The user device 300 includes a control section 330 and a storage section 350 as main components. The control unit 330 executes a series of commands included in the network switching application stored in the storage unit 350 based on a signal given to the user device 300 or based on the establishment of a predetermined condition. do. User device 300 functions as control unit 330 and storage unit 350 through cooperation of processor 302 , memory 304 , storage 306 , communication IF 308 , and GPS receiver 310 .

The control unit 330 functions as a download (DL)/readout unit 331, a position determination unit 332, an area determination unit 333, or a switching unit 334 according to the description of a program (not shown). The control unit 330 can also function as other functional blocks (not shown) according to the nature of the application (AP) to be executed.

The DL/reading unit 331 downloads the geofence table 352 and the switching logic table 353 from the geofence server 102 . For example, when the user device 300 cannot connect to the geofence server 102, the DL/reading unit 331 may read the geofence table 352 and switching logic table 353 stored in the storage unit 350 in advance.

Position determiner 332 determines the current position of user device 300 based on signals received from satellites 122 of the positioning system and stores it in storage 350 .

The area determination unit 333 refers to the geofence table 352 ( FIG. 6 ), determines the geofence area from the current position of the user device 300 , and stores it in the storage unit 350 .

The switching unit 334 determines whether the geofence area has changed from the previous position of the user device 300 stored in the storage unit 350 and the current position of the user device 300 . If the geofence area has changed, the switching logic table 353 (FIG. 7) is referenced to switch the network to which the user device 300 is connected.

(Data stored in the storage unit of each device)
4 shows an example of data stored in the storage unit 350 of the user device 300. As shown in FIG. The storage unit 350 can store other data (not shown) according to the nature of the application (AP) to be executed.

The storage unit 350 stores a switching application 351 , a geofence table 352 downloaded from the geofence server 102 , and a switching logic table 353 .

A switching application 351 is installed on the user device 300 . The switching application 351 accesses the geofence server 102, downloads the geofence table 352 and the switching logic table 353 from the geofence server 102, acquires the current location of the user device 300, and determines the geofence area. , and an application program that performs processing up to switching of the network of the user device 300 .

Geofence table 352 may store range information for multiple geofence areas. The geofence server 102 updates the geofence table 352 according to changes such as addition and deletion of geofence areas. Then, the latest geofence table 352 is transmitted to the user device 300 in response to this request.

FIG. 6 shows an example of the data structure of the geofence table 352. As shown in FIG. The geofence table 352 includes an identifier that uniquely identifies each geofence area assigned by the system designer, geofence area range information preset by the system designer, and the type of each geofence area (public geofence area). offense area, private geofence area, switching area). In one example, as shown in FIG. 6, Geofence Area 1 is associated with the Public Geofence Area, Geofence Area 2 is associated with the Switching Geofence Area, and Geofence Area 3 is associated with the Private Geofence Area.

Returning to FIG. 4, the switching logic table 353 can store network switching conditions. The geofence server 102 updates the switching logic table 353 according to changes such as addition and deletion of geofence areas, and the switching logic table 353 is requested from the switching application running on the user device 300. Then, in response to this request, the latest switching logic table 353 is transmitted to the user device 300 .

FIG. 7 shows an example of the data structure of the switching logic table 353. As shown in FIG. The switching logic table 353 associates the identifier assigned to the previous geofence area of the user device 300 (From column), the identifier assigned to the current geofence area (To column), and the handling of network changes. The switching logic table 353 can manage movement between geofence areas, and if there are N geofence areas (3 in the illustration), then (N−1)×(N−1) (4 in the illustration). Able to manage network switching process as follows. In one example, as shown in FIG. 7, when the user device 300 moves from the previous Geofence Area 1 to the current Geofence Area 2, the switching logic table 353 switches from the public network 104 to the private network 106 connection. command to switch.

FIG. 5 illustrates an example processing flow 500 performed in the user device 300 of the network switching system 100 shown in FIG. 1 according to one embodiment of the present disclosure. It is assumed that the switching application 351 is stored in advance in the user device.

First, in step S<b>2 , the user device 300 receives an operation by the user and activates the switching application 351 stored in the storage unit 350 .

Next, in step S4, the user device 300 (DL/reading unit 331) connects to the geofence server 102 via the communication IF 308, and receives the latest geofence table 352 (FIG. 6) from the geofence server 102 and the latest switching logic table 353 ( FIG. 7 ) and stored in the storage unit 350 . If the geofence table 352 and switching logic table 353 are already stored, they are updated to the latest tables. Note that when the user device 300 and the geofence server 102 cannot be connected, or when there is no change in the geofence table 352 and the switching logic table 353 and there is no need to update, the user device 300 (DL/reading unit 331) stores A geofence table 352 and a switching logic table 353 pre-stored in the unit 350 are read.

Next, in step S6, the user device 300 (position determining unit 332) obtains device area-related information related to the position of the user device 300 from the node 120, and based on the obtained device area-related information, Determine the location of device 300 . The area-related information of the device is associated with an identifier unique to the user device 300, and includes GPS positioning information, Wi-Fi information (signal strength, SSID) obtained from the AP 124, or information obtained from the Bluetooth communication counterpart device 126. At least one of (signal strength, tag information) is provided.

If the device's area-related information is GPS positioning information, the GPS positioning location received by the GPS receiver 310 from the satellites 122 of the positioning system is the location of the user device 300 .

When the device's area-related information is Wi-Fi information, it receives a signal from the AP 124 via the communication IF 308 . The pre-mapped location of AP 124 becomes the location of user device 300 when the signal from AP 124 is above a predetermined strength and/or contains the SSID of AP 124 .

When the area-related information of the device is information from the Bluetooth communication counterpart device 126 , a signal is received from the Bluetooth communication counterpart device 126 via the communication IF 308 . When the signal from the Bluetooth communication counterpart device 126 is above a predetermined signal strength and/or contains the tag information of the Bluetooth communication counterpart device, the pre-mapped Bluetooth communication counterpart device 126 The position is the position of the user device 300 .

When the user device 300 can acquire area-related information of a plurality of devices, the user device 300 may determine the position of the user device 300 according to a combination of the acquired information or according to the priority of the acquired information. In one example, a system designer sets the highest priority in advance to GPS information, followed by Wi-Fi information, and information from the Bluetooth communication device 126 in this order. The position of the user device 300 is determined based on the area-related information of the device with the highest priority among the acquired area-related information of the devices.

Next, in step S8, the user device 300 (area determination unit 333) refers to the geofence table 352 (FIG. 6) to determine a geofence area including the determined position of the user device 300. The offense area (geofence area identifier and area type) is stored in the storage unit 350 .

Next, in step S10, the user device 300 (switching unit 334) reads the previous geofence area stored in the storage unit 350, and selects the geofence area determined in step S6 from the previous geofence area. has changed (entering geofence, leaving geofence, etc.).

Next, in step S10, when it is determined that the geofence area has changed, the process proceeds to step S12, and the user device 300 (switching unit 334) refers to the switching logic table 353 (FIG. 7) to appropriately change the user device Switch 300 connection networks. More specifically, the user device 300 (switching unit 334) determines that the current geofence area or the previous geofence area is the switching geofence area, and that the type of the current geofence area and the previous geofence area If the type of area is different, the connection network of the user device 300 is switched.

In one example, the switch geofence area is designated as the area that connects with the private network 106 . In this case, when it is determined that the geofence area 1 has changed to the geofence area 2 that is the switching geofence area, the user device 300 (switching unit 334) refers to the switching logic table 353 of FIG. It instructs the communication IF 308 to forcibly switch from 104 to the private network 106 .

Further, when the user device 300 (switching unit 334) determines that the geofence area has changed from the geofence area 2 to the geofence area 1, the user device 300 communicates to forcibly switch from the private network 106 to the public network 104. Instruct the IF 308.

In addition, when the user device 300 (switching unit 334) determines that the geofence area 2 that is the switching geofence area has changed to the geofence area 3, or the geofence area that is the switching geofence area from the geofence area 3 2, the network is not switched and the connection with the private network 106 is maintained. In this way, even if the geofence area changes, if the type of geofence area does not change, the connection network will not switch.

Returning to FIG. 5, when it is determined in step S10 that the geofence area has not changed, the process proceeds to step S14 and network switching is not performed.

Next, proceeding to step S16, when it is determined that the switching application 351 has not been terminated in the user device 300, the geofence area (identifier of the geofence area and area type) determined in step S8 is changed to the immediately preceding geofence area. is stored in the storage unit 350 as the information of , and the process returns to step S4. The processing from step S4 to step S16 is repeated until it is determined in step S16 that the switching application 351 has ended. If it is determined in step S16 that the switching application 351 has ended, the process ends.

The present invention is not limited to the above-described embodiments, but can be modified in various ways within the scope of the claims, and can be obtained by appropriately combining technical means disclosed in different embodiments. is also included in the technical scope of the present invention.

In the above example, as shown in FIG. 7, the geofence area 2, which is the switching area, is designated as the area to be connected to the private network. In another example, the geofence area 2, which is the switching area, may be set to be connected to the public network. That is, when it is determined that the geofence area 1 has changed to the geofence area 2 or that the geofence area 2 has changed to the geofence area 1, the user device 300 (switching unit 334) switches the network. and maintain connection with the public network 104 . When it determines that the geofence area has changed from geofence area 2 to geofence area 3, it instructs the communication IF 308 to forcibly switch from the public network 104 to the private network 106 . When it determines that the geofence area has changed from geofence area 3 to geofence area 2, it instructs the communication IF 308 to forcibly switch from the private network 106 to the public network 104 . Whether the switching geofence area is an area connected to the public network 104 or an area connected to the private network 106 is determined for each switching geofence area by comparing the strength of radio waves received from base stations or APs. can be set arbitrarily.

102 Geofence server 104 Public network 106 Private network 108 Base station 110 Access point 120 Node 122 Satellite 124 Access point 126 Bluetooth communication device 202 Public geofence area 204 Private geofence area 206 Switching geofence area 210 Cloud service provision target area 300 User device 302 Processor 304 Memory 306 Storage 308 Communication interface 310 GPS receiver 330 Control unit 331 DL/readout unit 332 Position determination unit 333 ... Area determination unit 334 ... Switching unit 350 ... Storage unit 351 ... Switching application program 352 ... Geofence table 353 ... Switching logic table

Claims (12)

A method performed by a processor of a device, comprising:
receiving a geofence table from a geofence server, the geofence table associating identifiers of geofence areas, range information of the geofence areas, and types of the geofence areas; a step;
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the obtained area-related information;
referring to the received geofence table to determine the geofence area containing the current location of the device as the current geofence area in which the device is located;
When the current geofence area or the previous geofence area of the device is a switching geofence area and the type of the current geofence area is different from the type of the previous geofence area, switching a connection destination of the device from the first network to a second network;
including
the types of the geofence area include a public geofence area, a private geofence area, and the switching geofence area;
the public geofence area is a geofence area in which radio waves from a base station connected to the first network are equal to or greater than a first predetermined power;
the private geofence area is a geofence area in which radio waves from access points connected to the second network are equal to or greater than a second predetermined power;
The method , wherein the switch geofence area is an area where the public geofence area and the private geofence area overlap . 2. The method of claim 1 , wherein the switching geofence area is set as an area in which the device connects to the second network. 3. The method according to claim 1 or 2 , wherein said base station operates as either a 3G base station, a 4G base station or a 5G base station of a public mobile network. The method according to any one of claims 1 to 3 , wherein the access point operates either as a Local 5G base station, an sXGP base station or a Wi-Fi access point of a private network. 5. A method according to any one of the preceding claims, wherein said determined geofence area comprises the current location of said device. The method according to any one of claims 1 to 5 , wherein the area-related information includes at least one of GPS positioning information, information from Wi-Fi access points, and information from Bluetooth communication counterpart devices. A priority is set for each of the GPS positioning information, the information from the Wi-Fi access point, and the information from the Bluetooth communication device, and when area-related information with a high priority is acquired, acquisition 7. The method of claim 6 , wherein the location of the device is determined based on prioritized area-related information. 8. The method according to claim 7 , wherein the GPS positioning information has the highest priority, followed by the information from the Wi-Fi access point and the information from the Bluetooth communication counterpart device. A method according to any one of claims 6 to 8 , wherein the information from the Wi-Fi access point includes at least one of signal strength from the Wi-Fi access point and/or SSID. The method according to any one of claims 6 to 8 , wherein the information from the Bluetooth communication counterpart device further includes at least one of signal strength from the Bluetooth communication counterpart device and tag information. A device comprising a memory for storing instructions and a processor,
By executing the instructions stored in the storage unit, the processor
receiving a geofence table from a geofence server, wherein the geofence table associates an identifier of a geofence area, range information of the geofence area, and a type of the geofence area;
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the area-related information obtained;
referring to the received geofence table, determining the geofence area including the current location of the device as the current geofence area in which the device is located;
When the current geofence area or the previous geofence area of the device is a switching geofence area and the type of the current geofence area is different from the type of the previous geofence area, switching the connection destination of the device from the first network to a second network;
the types of the geofence area include a public geofence area, a private geofence area, and the switching geofence area;
the public geofence area is a geofence area in which radio waves from a base station connected to the first network are equal to or greater than a first predetermined power;
the private geofence area is a geofence area in which radio waves from access points connected to the second network are equal to or greater than a second predetermined power;
The device , wherein the switch geofence area is an area where the public geofence area and the private geofence area overlap . A non-temporary recording medium in which a program executed by the processor of the device is recorded,
By the processor executing the program,
receiving a geofence table from a geofence server, wherein the geofence table associates an identifier of a geofence area, range information of the geofence area, and a type of the geofence area;
obtaining area-related information for a device associated with the location of the device connected to a first network;
determining a current location of the device from the area-related information obtained;
referring to the received geofence table, determining the geofence area including the current location of the device as the current geofence area in which the device is located;
When the current geofence area or the previous geofence area of the device is a switching geofence area and the type of the current geofence area is different from the type of the previous geofence area, switching the connection destination of the device from the first network to a second network;
the types of the geofence area include a public geofence area, a private geofence area, and the switching geofence area;
the public geofence area is a geofence area in which radio waves from a base station connected to the first network are equal to or greater than a first predetermined power;
the private geofence area is a geofence area in which radio waves from access points connected to the second network are equal to or greater than a second predetermined power;
The non-temporary recording medium , wherein the switching geofence area is an area where the public geofence area and the private geofence area overlap .

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