ESIM-based TBOX device networking method, TBOX device and storage medium

Abstract

A networking method of a TBOX device based on an eSIM, the TBOX device and a storage medium wherein the TBOX device comprises an eSIM card having a test code number, due to the use of the eSIM card, the number and the card can be separated, and the code number can be dynamically switched. In the production stage, when the function test of the TBOX equipment is carried out, the test code number is used for networking test, and the test code number can use the code number of a producer operator; when a service code number downloading instruction is received, the test code number is used for carrying out network stationing operation to determine the area where the TBOX equipment is located currently, and the local service code number of the area where the TBOX equipment is located currently is downloaded to the eSIM card, so that the code number can be dynamically switched into the service code number of the use place in the use stage, and the local network is connected. The problem that the production test cost is too high due to high roaming fee is solved, meanwhile, the test work in the production stage can be completed only by using a single test code number or a small number of test code numbers, and the number of SKUs of TBOX equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the field of mobile communication technology, and in particular to a networking method for a TBOX device based on an eSIM, a TBOX device and a storage medium. Background Art

[0002] At present, traditional cars are transforming into smart connected cars. For smart connected cars, the connection function is the cornerstone of their intelligence. Some smart connected cars produced by automobile manufacturers will be exported to many different countries around the world and used in different countries. When smart connected cars are produced domestically, they need to be connected to the Internet for testing of related functions, so they need to have the ability to connect to the domestic network. When smart connected cars are shipped to other countries overseas, they need to have the network connection capability of the target market country. The current common solution is to purchase the code number of the operator in the target market country and download it to the smart connected car for use in the target market country, and directly use the code number of the operator in the target market country for domestic research and development and production line testing.

[0003] This solution requires that operators in the target market countries have and enable roaming capabilities in the countries where smart connected vehicles are produced. For operators around the world, not all operators support roaming in the countries where smart connected vehicles are produced, and even if they support roaming, roaming charges are still a very high expense.

[0004] In addition, this solution also brings up the issue of multiple SKUs. The TBOX devices in smart connected cars are used to achieve communication between vehicles and external networks. TBOX devices with different code numbers are usually identified by different SKUs. Due to the large number of target areas for automobile exports, the current method of using the code numbers of target market countries for roaming will result in dozens of SKU types for TBOX devices, and it is necessary to clearly confirm which countries the currently produced vehicles will be shipped to during the production and stocking stage, which brings great challenges to production and supply chain management. Summary of the invention

[0005] The main technical problem solved by the present invention is how to reduce the number of SKUs of TBOX equipment.

[0006] According to a first aspect, an embodiment provides a networking method for a TBOX device based on an eSIM, wherein the TBOX device includes an eSIM card, and the eSIM card has a test code number. The networking method includes: When performing a functional test on the TBOX device, use the test code number to connect to the network to perform the functional test; When a service code number download instruction is received, the test code number is used to perform a network operation to determine the area where the TBOX device is currently located, the local service code number of the area where the TBOX device is currently located is downloaded to the eSIM card, and the service code number is used to connect to the network.

[0007] In some embodiments, the eSIM card has a sub-number, and the test code number is pre-set in the eSIM card, or the test code number is downloaded to the eSIM card via the Internet using the seed number.

[0008] In some embodiments, the functional test includes a functional test performed on the TBOX device independently and a functional test performed after the TBOX device is installed on a whole vehicle.

[0009] In some embodiments, the networking method further includes: when an OTA update of the software is required and the eSIM card does not have a service code number, using the test code number to perform an OTA update of the software.

[0010] In some embodiments, the eSIM card has service code numbers for other areas except the area where the TBOX device is currently located. After downloading the local service code number of the area where the TBOX device is currently located to the eSIM card, the service code numbers of other areas are also deleted.

[0011] In some embodiments, the using the test code number to perform a station operation to determine the area where the TBOX device is currently located includes: The test code number is used to request the base station to stay on the network, and the MCCMNC information returned by the base station is received to determine the area where the TBOX device is currently located by using the MCCMNC information.

[0012] In some embodiments, the service code number download instruction is issued by an eSIM management platform, and the TBOX device includes an eSIM SDK; The downloading of the local service code number of the area where the TBOX device is currently located to the eSIM card includes: The eSIM SDK obtains the MCCMNC information and reports it to the eSIM management platform, so that the eSIM management platform determines the area where the TBOX device is currently located according to the MCCMNC information, and downloads the local service code number of the area where the TBOX device is currently located to the eSIM card.

[0013] In some embodiments, the eSIM management platform downloads the local service code number of the area where the TBOX device is currently located to the eSIM card, including: The eSIM management platform notifies the SM-DP+ platform of the local operator in the area where the TBOX device is currently located to download the service code number to the eSIM SDK, so that the eSIM SDK writes the service code number into the eSIM card.

[0014] According to a second aspect, an embodiment provides a TBOX device, which includes an eSIM card and a processor, wherein the eSIM card has a test code number, and the processor is used to execute the networking method in any of the above embodiments.

[0015] According to a third aspect, an embodiment provides a computer-readable storage medium, on which a computer program is stored. The computer program can be executed by a processor to implement the networking method in any of the above embodiments.

[0016] According to the networking method, TBOX device and storage medium of the eSIM-based TBOX device of the above-mentioned embodiment, due to the use of the eSIM card, the number and card can be separated, and the code number can be dynamically switched, so that the code numbers of different regions and different operators can be used in the production stage and the use stage; in the production stage, a test code number is used for functional testing, and the test code number can use the code number of the operator of the producing country. In the use stage, the code number can be dynamically switched to the service code number of the place of use by issuing instructions, and the service code number is used to connect to the local network; in this way, there is no need to use roaming to test the equipment, which overcomes the problem of high production testing costs caused by high roaming charges, and there is no need to determine in advance which areas the currently produced vehicles will be sent to. At the same time, only a single or a small number of test codes are needed to complete the testing work in the production stage, reducing the number of TBOX device SKUs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a technical solution for implementing networking in the test and use phases using multiple IMSIs in the prior art; Figure 2 A flowchart of a networking method of a TBOX device based on an eSIM according to an embodiment; Figure 3 This is an architecture diagram of a system for downloading eSIM numbers in an embodiment; Figure 4 This is an architecture diagram of a system for downloading eSIM numbers in another embodiment; Figure 5 A flowchart of production testing and market use of an intelligent networked vehicle based on the networking method of the present application in an embodiment; Figure 6 A schematic diagram of the structure of a TBOX device according to an embodiment. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0019] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0020] The serial numbers assigned to the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "linking" mentioned in this application, unless otherwise specified, include direct and indirect connections (links); the "send", "send to", and "send to..." mentioned in this application, unless otherwise specified, include direct and indirect sending to the destination.

[0021] First, some terms involved in this application are briefly explained.

[0022] SIM: Subscriber Identity Module.

[0023] eSIM: Embedded SIM.

[0024] eUICC: Embedded Universal Integrated Circuit Card, embedded universal integrated circuit card.

[0025] IP: Internet Protocol, also refers to IP address.

[0026] IoT: Internet of Things.

[0027] OEM: Original Equipment Manufacturer.

[0028] SKU: Stock Keeping Unit, inventory unit, refers to the unique number or code used to distinguish different products in supply chain management.

[0029] TBOX: Telematics BOX, a remote communication terminal (telematics processor), is mainly used in intelligent connected vehicles to achieve communication between vehicles and external networks, supporting telematics processing, data transmission, vehicle status monitoring and a variety of Internet of Vehicles services.

[0030] Profile: Code resource, which is a collection of card data and card applications required by operators to provide services to users; Seed number: Provisioning Profile, a code resource with global network connection capabilities, generally used to establish an initial connection.

[0031] Test code number: refers to the code number mainly used for testing. You can purchase the code number from the operator for use as a test code number.

[0032] Business code number: Operational Profile, a code number used to use data services.

[0033] OTA: Over-The-Air technology, over-the-air download technology.

[0034] Air-send: send in the air.

[0035] Network data: text, images, audio, video, files and other data transmitted and stored in the network.

[0036] IMSI: International Mobile Subscriber Identity.

[0037] KI: Key Identifier, authentication key. KI is one of the keys in the SIM card used to authenticate the user's identity on the network.

[0038] OP‌: Operator Key, operator's root key.

[0039] OPC‌: Operator-specific Key. OPC is obtained through a series of operations between OP and KI. It is an operator-specific key used for user identity authentication.

[0040] Applet: refers to applications and small programs that can run on SIM cards.

[0041] MCC: Mobile Country Code, mobile country code, consists of three digits.

[0042] MNC: Mobile Network Code, usually composed of two or three digits, together with MCC constitutes a complete mobile network identification.

[0043] MCCMNC: Combination of MCC and MNC.

[0044] ISDN: Integrated Services Digital Network.

[0045] MSISDN: Mobile Subscriber International ISDN Number, mobile subscriber international number.

[0046] Modem: modem.

[0047] TSP: Telematics Service Provider, telematics service provider.

[0048] In an existing technical solution, the multi-IMSI solution provided by the basic operator is directly used to achieve network connections in different countries during the production test phase and the equipment use phase. Operator A and operator B in different countries complete the system docking in advance. Both parties jointly generate code data with the same KI and OPC and provide their own IMSI to be placed in the SIM card used by the TBOX device of the intelligent networked vehicle. The SIM card manufacturer provides an Applet program that can dynamically switch the code IMSI and runs it in the SIM card. The vehicle uses the same code number to access the Internet. When in the country of production, it uses the IMSI of the operator in the country of production. When sold overseas, it uses the IMSI of the local operator.

[0049] Please refer to Figure 1 For example, a smart connected car produced in China and used in the UK has three IMSIs built into the SIM card: IMSI #1, IMSI #2, and IMSI #3. IMSI #1 is the IMSI of the Chinese operator, and IMSI #2 is the IMSI of the UK operator. The entire process is as follows: (1) When the vehicle is tested on the production line of the Chinese factory, the code number uses the initial IMSI #1 to access the Internet; (2) After the vehicle completes the test on the production line and is shipped to the UK, the code number is detected in the UK network (MCC310); (3) The Applet checks the IMSI used by the preset logic in the MCC 310; (4) Applet detects that IMSI #1 cannot support MCC 310, but IMSI #2 can support MCC 310; (5) The Applet switches the IMSI used by the code number to IMSI #2 and activates IMSI #2, and simultaneously switches the supporting MSISDN and other parameters; (6) Use IMSI #2 to access the Internet; (7) The Applet continuously monitors the MCCMNC found by the Modem.

[0050] The above solution has the following disadvantages: (1) Unable to solve the problem of too many SKUs; (2) Strong reliance on operators and slow deployment. This solution requires all operators to have established core network processes with operators in the vehicle manufacturing country and provide Multi-IMSI solutions. If a new solution is required, it usually takes years to establish. (3) Inflexible. Under the Multi-IMSI solution, all code switching logic is pre-defined and installed in the Applet in the SIM card for control. This means that it is difficult to change the switching logic later, such as adding switching logic for specific countries or changing the IMSI that is expected to be used in certain countries. (4) Difficult to control. All IMSI switching actions are controlled by the Applet on the client side, and users and the cloud platform cannot intervene or perform special processing. (5) It will bring a lot of duplication of work. Since some car companies need to build dedicated lines with operators that provide IMSI to protect private network data transmission, if different overseas operators choose different domestic operators as Multi-IMSI partners, car companies will need to connect systems and networks with all operators. This will not only increase costs and extend deployment time, but also bring a heavy burden of subsequent maintenance.

[0051] In view of the defects of existing technologies, car companies or TBOX equipment manufacturers need a flexible and economical solution with higher feasibility that can support the complete R&D-production line testing-market use process to meet the challenges of full overseas product launch.

[0052] After investigation, the applicant found that the problem of numerous SKUs of current TBOX devices is actually caused by the inability to separate the number card. In the production stage, it is not necessary to use the code number of the target country for testing. The use of other operator codes can still support the needs of functional testing. However, the existing technology uses a physical SIM card. Under the physical card solution, because the code number cannot be changed after the patch is produced, the code number of the operator in the target country can only be placed in the SIM card in advance. When testing, only the code numbers and SIM cards of operators in different target countries can be used.

[0053] The present application provides a networking method and TBOX device based on eSIM, aiming to provide a more flexible solution with higher control power for users, which can greatly reduce the SKU of TBOX equipment and greatly reduce the testing cost in the vehicle production process. The present application changes the type of SIM card and adopts eSIM card for communication. Through the eSIM solution, the number card can be separated, so that the code numbers in the production stage and the use stage can use the code numbers of operators in different regions, thereby reducing or unifying the SKU in the production stage. For smart connected car OEMs, they only need to purchase standard eSIM cards, purchase test code numbers and business code numbers in different regions, and remotely download or pre-set test code numbers before the factory testing stage to support factory TBOX and vehicle testing and inventory period OTA; when the vehicle is sent to the target area, the local business code number is downloaded for use. If it involves a cross-regional transfer scenario, you can also remotely OTA switch to the business code number of the new area. The different regions here refer to different countries or regions.

[0054] The embodiments of the present application can solve some or all of the following problems existing in the prior art: (1) The problem of too many SKUs; (2) Roaming leads to high production costs; (3) The problem that users and platforms are unable to control the switching of code numbers; (4) The long development cycle of Multi-IMSI solutions; (5) The Multi-IMSI switching logic is difficult to change backwards; (6) The need to connect with a large number of roaming operators leads to higher costs and longer project development cycles; (7) When it comes to subsequent cross-region transfer scenarios, it is necessary to disassemble the machine and re-attach the card.

[0055] In the embodiment of the present application, the TBOX device includes an eSIM card, which can be purchased by the OEM of the smart connected car and has a test code number. The test code number can also be purchased by the OEM of the smart connected car from the operator and the network configuration is opened. The test code number can use the code number of the operator in the country where the smart connected car is produced.

[0056] Please refer to Figure 2 In one embodiment of the present application, a networking method for a TBOX device based on an eSIM includes steps 100 and 200, which are described in detail below.

[0057] Step 100: When performing a functional test on the TBOX device, use a test code number to connect to the network to perform a functional test.

[0058] Functional testing includes independent functional testing of TBOX equipment and functional testing after TBOX equipment is installed on the whole vehicle. Specifically, during the production stage of TBOX equipment, the test code number is used to perform independent functional testing on the TBOX equipment on the production line; after the TBOX equipment is installed on the whole vehicle, the test code number is used to perform functional testing on the whole vehicle production line.

[0059] Step 200: When a service code number download instruction is received, a test code number is used to perform a network operation to determine the area where the TBOX device is currently located, download the local service code number of the area where the TBOX device is currently located to the eSIM card, and use the service code number to connect to the network.

[0060] When the whole vehicle is transported to overseas for sale, the smart connected car OEM, TBOX equipment manufacturer or third-party communication service provider can send a business code number download instruction to the TBOX device, enable the test code number to download the local business code number, and then during the vehicle use phase, the business code number can be used to realize network connection functions, such as sending and receiving network information, listening to network music, watching network videos, etc.

[0061] There are at least two scenarios where the service code number needs to be downloaded. When the whole vehicle is transported from the production site to the target market area, the service code number of the target market area is downloaded by issuing a service code number download instruction. When the whole vehicle is transferred to a new area, the service code number of the new area is downloaded by issuing a service code number download instruction. In this scenario, the eSIM card has the service code number of other areas except the area where the TBOX device is currently located, that is, the service code number (old service code number) of the area (old area) where the whole vehicle, that is, the TBOX device was previously located. After downloading the local service code number of the area where the TBOX device is currently located to the eSIM card, the service code number of other areas can also be deleted.

[0062] In one embodiment, the test code number is written into the eSIM card by the card manufacturer during the eSIM card production stage, and is thus preset in the eSIM card.

[0063] In another embodiment, the eSIM card does not have a pre-set test code number, but the eSIM card has a sub-number, and the test code number can be downloaded to the eSIM card using the seed number during the TBOX equipment production phase. In this embodiment, through the transition between the seed number-test code number-service code number, a remote code number download and networking solution for the entire process of production line testing-market use is realized, without the need to pre-set the test code number during the card production phase and disassemble and replace the card, and the networking code number can be directly replaced through OTA.

[0064] In some embodiments, when an OTA update of the software is required and the eSIM card does not have a service code number, a test code number is used to perform an OTA update of the software.

[0065] For example, after a vehicle rolls off the production line and enters the inventory period, the eSIM card does not have a service code number. If an OTA update of the software is required during the inventory period, a test code number is used for the OTA update of the software.

[0066] In some embodiments, the test code number is used to perform a stationing operation in step 200 to determine the area where the TBOX device is currently located, including: using the test code number to request stationing from the base station, receiving MCCMNC information returned by the base station to use the MCCMNC information to determine the area where the TBOX device is currently located.

[0067] Since MCCMNC includes the country code and network code of the current area, the area where the TBOX device is currently located can be determined based on the MCCMNC information.

[0068] In some embodiments, the service logic of downloading the code number to the eSIM card relies on the following Figure 3 or Figure 4 The system architecture shown is implemented, some of the key components are as follows: SM-DP+ platform: Subscription Manager-Data Preparation+, subscription management-data preparation platform, which is a network service platform responsible for producing, storing and providing number resources, used for eSIM number empty issuance, and complies with GSMASGP.2X specification; eSIM management platform (eSIM remote manager): responsible for remote configuration file status management operations for a single IoT device (including smart connected cars, TBOX devices, etc.) or a group of IoT devices. In some embodiments, it is part of the global eSIM management platform for connected vehicles; eSIM SDK: A component in IoT devices that enables the eUICC in IoT devices to be dynamically issued by the SM-DP+ platform. The eSIM SDK provides a variety of different functions, including configuration file download, service discovery, notification processing, and transmission of PSMO (Profile State Management Operation) and related results.

[0069] eUICC: An eSIM card that supports backward-transmitted code numbers.

[0070] Based on the above system architecture, the eSIM code number download can be uniformly managed through the eSIM management platform, and the eSIM management platform issues service code number download instructions. The TBOX device includes the eSIM SDK.

[0071] In one embodiment, downloading the local service code number of the area where the TBOX device is currently located to the eSIM card in step 200 includes: obtaining MCCMNC information by the eSIM SDK and reporting it to the eSIM management platform, so that the eSIM management platform determines the area where the TBOX device is currently located according to the MCCMNC information, and downloading the local service code number of the area where the TBOX device is currently located to the eSIM card.

[0072] In one embodiment, Figure 3 and Figure 4 As shown, the eSIM management platform downloads the local service code number of the area where the TBOX device is currently located to the eSIM card, including: the eSIM management platform notifies the SM-DP+ platform of the local operator in the area where the TBOX device is currently located to download the service code number to the eSIM SDK, so that the eSIM SDK writes the service code number into the eSIM card.

[0073] In this embodiment, the base station returns the MCCMNC information, the eSIM SDK obtains the MCCMNC information, and reports it to the eSIM management platform. The eSIM management platform determines the current area of ​​the TBOX device based on the MCCMNC information, interacts with the local operator's SM-DP+ platform, and selects the local service code number to download to the eSIM card.

[0074] Figure 5 An example of using the networking method of the present application to perform production testing and market use of intelligent connected vehicles is shown, and the main process is as follows: (1) The eSIM card factory produces eSIM cards containing seed numbers, and the smart connected car OEM purchases eSIM cards containing seed numbers; (2) Smart connected car OEMs purchase test code resources from operators and open up network configuration; (3) The test code number is downloaded to the eSIM card by the factory using the seed number, or the eSIM card factory presets the test code number into the eSIM card; (4) The eSIM card is mounted on the TBOX device and a functional test is performed using a test code on the TBOX device production line; (5) The TBOX equipment is installed on the vehicle and the test code is used to perform functional testing on the vehicle production line; (6) After the vehicle is off the assembly line and enters the inventory period, if an OTA software update is required during the inventory period, the test code number is used to perform the OTA software update; (7) The vehicle is transported to the target market area, and the test code number is used to download the business code number of the target market area; (8) If the target market area is adjusted, after the vehicle is transported to the new target market area, the business code number of the new target market area is downloaded and the old business code number is deleted; (9) Selling complete vehicles and using business codes to provide Internet connection functions.

[0075] Please refer to Figure 6 The TBOX device provided in the present application includes an eSIM card 10 and a processor 20, wherein the eSIM card 10 has a test code number and may also have a seed number, and the processor 20 is used to execute the networking method of any embodiment of the present application.

[0076] Compared with the prior art, the technical solution of this application has the following advantages: (1) Through eSIM technology, the switching and downloading of service codes of different regions and operators can be realized; by sending the service code numbers downward, it is no longer necessary to put the service code numbers of the target area into the SIM card in advance. During the production stage, a small number or a single test code number can be used for testing, reducing the number of SKUs of TBOX equipment and even achieving the unification of SKUs of TBOX equipment; (2) Overcoming the problem of high production test costs caused by high roaming charges; (3) There is no need to determine in advance which regions the currently produced vehicles will be shipped to; (4) When the actual sales area of ​​a vehicle is changed, the business code number can be changed directly through OTA without disassembling parts or replacing cards; (5) It does not rely on the solutions between operators. Operators only need to provide eSIM standard number resources, which speeds up project deployment. (6) Through eSIM technology, the number in use can be managed locally / remotely, supporting dynamic change of number switching logic and supporting manual remote / local intervention in number switching; (7) Operators who only involve a small number or a single test code number reduce the cost of program construction and subsequent management and maintenance costs.

[0077] Those skilled in the art will appreciate that all or part of the functions of the various methods in the above-mentioned embodiments can be implemented by hardware or by computer programs. When all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to implement the above-mentioned functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above-mentioned functions can be implemented. In addition, when all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can also be stored in a storage medium such as a server, another computer, disk, optical disk, flash disk or mobile hard disk, and can be downloaded or copied and saved in the memory of the local device, or the system of the local device is updated, and when the program in the memory is executed by the processor, all or part of the functions in the above-mentioned embodiments can be implemented.

[0078] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. A networking method for a TBOX device based on eSIM, characterized in that: The TBOX device includes an eSIM card, the eSIM card has a test code number, and the networking method includes: When performing a functional test on the TBOX device, use the test code number to connect to the network to perform the functional test; When a service code number download instruction is received, the test code number is used to perform a network operation to determine the area where the TBOX device is currently located, the local service code number of the area where the TBOX device is currently located is downloaded to the eSIM card, and the service code number is used to connect to the network.

2. The networking method according to claim 1, characterized in that: The eSIM card has a sub-number, the test code number is preset in the eSIM card, or the test code number is downloaded to the eSIM card via the Internet using the seed number.

3. The networking method according to claim 1, characterized in that: The functional test includes a functional test performed on the TBOX device independently and a functional test performed after the TBOX device is installed on a whole vehicle.

4. The networking method according to claim 1, characterized in that: Also includes: When an OTA update of the software is required and the eSIM card does not have a service code number, the test code number is used to perform an OTA update of the software.

5. The networking method according to claim 1, characterized in that: The eSIM card has service code numbers for other areas except the area where the TBOX device is currently located. After downloading the local service code number for the area where the TBOX device is currently located to the eSIM card, the service code numbers for other areas are also deleted.

6. The networking method according to claim 1, characterized in that: The using the test code number to perform a stationing operation to determine the area where the TBOX device is currently located includes: The test code number is used to request the base station to stay on the network, and the MCCMNC information returned by the base station is received to determine the area where the TBOX device is currently located by using the MCCMNC information.

7. The networking method according to claim 6, characterized in that: The service code number download instruction is issued by the eSIM management platform, and the TBOX device includes the eSIM SDK; The downloading of the local service code number of the area where the TBOX device is currently located to the eSIM card includes: The eSIM SDK obtains the MCCMNC information and reports it to the eSIM management platform, so that the eSIM management platform determines the area where the TBOX device is currently located according to the MCCMNC information, and downloads the local service code number of the area where the TBOX device is currently located to the eSIM card.

8. The networking method according to claim 7, characterized in that: The eSIM management platform downloads the local service code number of the area where the TBOX device is currently located to the eSIM card, including: The eSIM management platform notifies the SM-DP+ platform of the local operator in the area where the TBOX device is currently located to download the service code number to the eSIM SDK, so that the eSIM SDK writes the service code number into the eSIM card.

9. A TBOX device, characterized in that: The invention comprises an eSIM card and a processor, wherein the eSIM card has a test code number, and the processor is used to execute the networking method according to any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that: A computer program is stored on the medium, and the computer program can be executed by a processor to implement the networking method according to any one of claims 1 to 8.

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