Intelligent cloud card pool based on ARM architecture

Abstract

An intelligent cloud card pool based on an ARM framework relates to the field of mobile communication technology and cloud sharing technology, and comprises an ARM main control board, a card strip slot board, a card strip, a power supply module and a temperature control fan, the ARM main control board is connected with the card strip slot board, the power supply module and the temperature control fan, the ARM main control board is connected with a network port and a serial port, and the network port is connected with the ARM main control board. The ARM main control board comprises an ARM chip, a storage chip and a plurality of slots which are connected with one another, the clamping strip slot board comprises a plurality of slots, a plurality of clamping strips are connected with the slots of the ARM main control board and the slots of the clamping strip slot board, and the clamping strip slot board is connected with the LED indicator lamp. According to the invention, a special server for the card pool is saved in hardware, and the working links of the virtual card system are reduced logically, so that the efficient utilization of regional network communication service data is realized.

Description

Technical Field

[0001] The present invention relates to the fields of mobile communication technology and cloud sharing technology, and particularly to an intelligent cloud card pool based on the ARM architecture. Background Art

[0002] At present, the development of communication technologies and the construction of basic network facilities in many overseas developing countries are uneven. In particular, the basic construction of wireless network communication in most countries develops poorly, affecting other network-based related projects. Through on-site research and experiments, the use of virtual SIM card technology can actively and economically technically solve and improve the local network conditions.

[0003] The Internet of Things is a new network architecture based on the Internet, a new technology model that combines information technologies such as sensors, intelligent devices, cloud computing, big data, and artificial intelligence. Efficient Internet communication is the core foundation for building the Internet of Things.

[0004] Whether in the fields of shared bicycles or smart homes, etc., the network traffic demand index of Internet of Things cards in applications has increased exponentially. For Internet of Things devices, traditional plug-in SIM cards can no longer meet the needs of device Internet access. All the massive devices of the Internet of Things need to be connected to the network, resulting in a huge contradiction in the demand for SIM card resources, thereby triggering the booming development of virtual SIM cards and card pool technology.

[0005] A card pool is a bottom-layer device in wireless communication technology. The development of this type of technology is relatively slow, and most of its functions often rely on large servers to achieve. Traditional card pool technology relies on a dedicated card pool server to achieve centralized management of the card pool SIMBANK and service matching, and to implement service functions.

[0006] The Internet of Things virtual card Internet access process generally includes the following links: 1. Card pool login (backup) - 2. The user terminal registers for Internet access through a telecom base station (activation card / seed card) - 3. The user terminal contacts the service server - 4. The service server applies to the card pool server for a resource card - 5. The card pool server performs authentication calculation and issues a virtual card writing instruction to the service server - 6. The user terminal writes the virtual card and activates the local function of the virtual SIM card.

[0007] Generally, conventional virtual card systems adopt the following mode: virtual SIM card terminal + service server + cloud card pool server + cloud card pool, as follows Figure 1 shown.

[0008] Traditional virtual card systems have multiple links and complex logical processes. Especially in the communication link between the card pool server and the card pool, they are more vulnerable to network attacks. Usually, expensive communication firewalls, encryption devices, and decryption devices need to be specially invested to ensure the stability and reliability of the link. Moreover, the installation of this set of equipment requires professional network engineers, and the difficulty of installing the card pool in different locations is large, and the installation cost and promotion cost are relatively high. Summary of the Invention

[0009] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an intelligent cloud card pool based on the ARM architecture, which saves the dedicated card pool server in terms of hardware and reduces the working links of the virtual card system logically, so as to realize the efficient utilization of regional network communication service data.

[0010] To achieve the above object, the main technical solutions adopted by the present invention include: An intelligent cloud card pool based on the ARM architecture, including an ARM main control board, a card strip slot board, card strips, a power module, and a temperature control fan. The ARM main control board is connected to the card strip slot board, the power module, and the temperature control fan. The ARM main control board is connected to a network port and a serial port. The ARM main control board includes an ARM chip, a storage chip, and a plurality of slots connected to each other. The card strip slot board includes a plurality of slots. A plurality of card strips are connected to the slots of the ARM main control board and the slots of the card strip slot board. The card strip slot board is connected to an LED indicator light.

[0011] Further, the power module converts the externally input AC 220V power into 5V, 12V, and 24V DC power and supplies it to the ARM main control board through a signal line, and then supplies power to the specified standard SIM card holders on the card strips.

[0012] Further, the number of card strips is 16 to 64. The slots of the ARM main control board are 2 rows of 10 pins. The card strip slot board includes 16 to 64 card strip slots, and the slots are 2 rows of 8 pins.

[0013] Further, the ARM main control board, the card strip slot board, the card strips, the power module, and the temperature control fan are integrated in a cloud SIM card chassis.

[0014] Further, the ARM main control board includes a CPU module, a communication module, and a SIM card module. The CPU module is the ARM926EJ-S kernel S3C2416 and the ARM CORTEX-A7 i.MX 6ULL of the ARM architecture. The main control board of the communication module is packaged with a standardized interface and includes an internal bus interface and an RJ-45 external network interface.

[0015] Furthermore, the SIM card module includes 1 to 16 card strips, and the SIM card module performs operations of powering on, activating, and reading SIM card data on the SIM card in the card slot component in accordance with the ISO7816 standard protocol.

[0016] Furthermore, each SIM card slot in the SIM card module is provided with an indicator light.

[0017] Furthermore, the intelligent cloud card pool includes a cloud card pool management system, which includes standardized configuration SIM card pool parameter information of the cloud card pool management system, including standardized configuration process and configuration content, and the SIM card pool parameter information includes SIM card country, telecom operator interface, and server docking interface information; during system operation, the card pool reports SIM card information to the service server; the service server applies to call the SIM card in the card pool to the designated virtual card user terminal; the card pool obtains the telecommunications base station information of the virtual card terminal device and activates the SIM card in the card pool; the activated SIM card is uploaded to the virtual card user terminal device; during the use of the virtual card, the card pool inspects, calculates the KEY value according to the virtual card authentication transmitted by the virtual card user terminal, calculates the SIM card authentication, feeds back the authentication result, and updates the card information status; during the use of the user terminal, the card pool inspects the SIM card, assists the SIM card authentication calculation, updates the card information status, and updates the SIM card status to the telecom operator, including the traffic consumption and voice function consumption; when the user terminal terminates use, the card pool recycles the SIM card resources and reports them to the service server for standby.

[0018] Furthermore, the determination of the country information of the SIM card includes: the card pool reads the IMSI and KI information inside the SIM card; the card pool reports to the service server, obtains the visited location register VLR through the terminal user, and initiates an authentication request to the local network; the telecommunications operator compares the received application with the SIM card center database, associates the SIM card with the place of affiliation, generates an authentication random number RAND, and transmits it back to the card pool; the SIM card in the card pool obtains the authentication random number RAND and calculates the authentication response SRES in combination with the IMSI and KI of the SIM card, and feeds it back to the base station; the SIM card in the card pool is activated, the data inside the SIM is read, and the traffic is obtained; the service server records the obtained SIM card information status data.

[0019] Furthermore, the intelligent cloud card pool also includes cloud positioning of virtual card users, which specifically includes the business server issuing a cloud positioning request; the cloud card pool management system checks and records the user's SIM card instant information; SIM card scanning, recording IP information; saving IP information; replacing the SIM card, initiating an authentication request to the local network; analyzing the IP location, obtaining the base station location, and locating the personnel location.

[0020] The beneficial effects of the present invention are: The intelligent cloud card pool of the present invention has been significantly improved in aspects such as centralized management and flexible scheduling, automation and intelligence, high availability and stability, scalability and compatibility, and operation mode. The present invention not only improves the efficiency and quality of cloud card pool services, but also provides a more convenient, economical, reliable, and personalized communication experience for end-users; The intelligent cloud card pool of the present invention realizes the self-functional management of the card pool through an embedded system and a management system based on the ARM architecture, and optimizes the network path of the cloud Internet of Things; innovatively integrates the functions of the card pool dedicated server, bringing great savings in the hardware cost of the cloud system; especially facilitating the convenient deployment in areas with relatively weak overseas network development and improving the local network bottleneck problem. The intelligent card pool management system greatly simplifies the cloud setting and cloud upgrade of the intelligent cloud card pool, and also greatly reduces the overseas deployment cost of the card pool. Moreover, the hardware structure of the intelligent cloud card pool is simple, the equipment manufacturing cost is low, and the application and promotion cost of virtual SIM card technology is greatly reduced; The intelligent cloud card pool of the present invention has strong control ability over ARM architecture hardware, can directly call hardware handles for bit operations, direct memory access, etc., has a smooth connection with the operating system software (Linux embedded system), and has high execution efficiency. And the intelligent cloud card pool management software supports cross-platform development: it can be compiled and run on multiple operating systems, providing convenience for the cross-platform transplantation and development of subsequent systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a topology diagram of the existing virtual card system; Figure 2 is a topology diagram of the intelligent cloud card pool system of the present invention; Figure 3 is a schematic diagram of the hardware structure of the intelligent cloud card pool of the present invention; Figure 4 is a schematic diagram of the process of the cloud card pool management system of the present invention; Figure 5 is a schematic diagram of the process for determining the country information of the SIM card in the intelligent cloud card pool of the present invention; Figure 6 is a schematic diagram of the cloud positioning process of the intelligent cloud card pool of the present invention; Figure 7 is a schematic diagram of the configuration program interface of the intelligent cloud card pool management system of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to better explain the present invention for easy understanding, the present invention will be described in detail below with reference to the accompanying drawings through specific embodiments.

[0023] The present invention provides an intelligent cloud card pool based on the ARM architecture, as Figure 2-3As shown in the figure, it includes an ARM main control board, a card slot board, a card strip, a power module, and a temperature-controlled fan. Each board is interconnected through signal lines. The ARM main control board is connected to the card slot board, the power module, and the temperature-controlled fan. The ARM main control board is connected to a network port and a serial port. The ARM main control board includes an ARM chip, a storage chip, and several slots that are connected to each other. The card slot board includes several slots. Several card strips are connected to the slots of the ARM main control board and the slots of the card slot board. The card slot board is connected to an LED indicator. The ARM main control board completes the monitoring and management of SIM cards, the collection and statistics of network data, the network management interface of the cloud SIM card pool, the control of the card pool LED indicator, and the adjustment of the rotation speed of the temperature-controlled fan. The present invention adopts an ARM architecture card pool system to meet the reliable and convenient establishment of a local traffic pool, support a user level of 10 to 100K, and better control the energy efficiency of the card pool. The ARM instruction set architecture has the following specific characteristics: small volume, low power consumption, low cost, and high performance; a large number of registers are used and most data operations are completed in the registers, so the instruction execution speed is faster; the addressing mode is flexible and simple, and the execution efficiency is high; the instruction length is fixed, and the processing efficiency can be improved through a multi-pipeline method.

[0024] Specifically, the ARM main control board includes a CPU module, a communication module, and a SIM card module. The CPU module is the ARM926EJ-S core S3C2416 and the ARM CORTEX-A7 i.MX 6ULL of the ARM architecture. The main control board of the communication module is packaged with a standardized interface and includes an internal bus interface and an RJ-45 external network interface. The present invention uses the ARM 926EJ-S core (S3C2416 chip) to build an embedded system, which serves as a computing node in the cloud card pool and is responsible for executing computing tasks submitted by users, such as data processing, virtualization, containerization, etc. By making full use of its multi-core and multi-thread characteristics, it provides high-efficient computing capabilities to meet the performance requirements of cloud services. Moreover, by taking advantage of the characteristics of the ARM architecture that supports rich interfaces and protocols, seamless connection and communication with other modules in the card pool, such as the storage module and the network module, are realized, and thus resource sharing and collaborative work are achieved.

[0025] Considering the demand situation of the long-term scale of the card pool users, in order to improve the energy efficiency of the card pool, the CPU module of the present invention adopts ARM CORTEX-A7 (i.MX 6ULL). In the construction of the intelligent cloud card pool hardware architecture, the present invention gives full play to the performance of the ARM chip processor architecture starting from the device function requirements, achieving high performance and low power consumption. Through the highly integrated and optimized card pool hardware design based on the efficient utilization of the computing resources of the ARM chip, it provides a fundamental guarantee for the reliable performance of the cloud services of the intelligent cloud card pool. As a part of the cloud system infrastructure, the core function of the intelligent cloud card pool is to provide authentication and encryption computing resources, storage resources, and network resources for SIM cards to meet the needs of telecom operators, users, and applications. In the card pool system management software, the CPU module needs to provide both embedded system functions and self-service management functions. Through the management system, users are allowed to query information such as the status and usage of SIM cards by themselves, facilitating self-management by users. After the user terminal is docked with the self-service APP, operations such as the activation, replacement, and deactivation of SIM cards can also be carried out through the self-service platform, improving the flexibility and efficiency of management.

[0026] The main control board of the present invention uses a standardized interface encapsulation, which can ensure seamless docking with various Internet of Things device modules. It includes an internal bus interface, an RJ-45 external network interface, and may also include a USB interface to support the writing and debugging of the card pool device program. The standardized interface simplifies the design of the device connection module and improves the versatility and replaceability of the module.

[0027] With the support of the management system, the intelligent cloud card pool can be distributed in series to expand the user scale under the same IP address. In this way, the cloud platform can more conveniently connect to the distributed intelligent cloud card pool and real-time manage the status of the SIM card pool, including the number of SIM card seats, usage, remaining traffic, etc. After measurement, through the series connection of multiple intelligent cloud card pools, the seat scale of the card pool can reach 100K for one IP address.

[0028] Through functions such as standardized interfaces, real-time monitoring, dynamic connection management, fault warning and handling, and security management, the intelligent cloud card pool of the present invention applies its own adjustment strategy to the device connection module and the SIM card management module, realizing the efficient, secure, and intelligent management of Internet of Things devices.

[0029] The SIM card module is the hardware foundation for realizing the integrated management of SIM cards in the card pool. The SIM card modules in the card pool follow the ISO7816 standard protocol to perform operations such as powering on and activating the SIM cards in the card slot components and reading SIM card data. At the same time, combined with the traffic requirements and priorities of the virtual card devices, it realizes the dynamic allocation of SIM cards, thus ensuring the reasonable allocation of SIM card resources in the card pool. According to the scale requirements of users, the SIM card holders of a single intelligent cloud card pool also provide design schemes with different numbers of SIM cards, such as 64 / 128 / 256 / 768, etc.

[0030] Hardware-wise, each card holder has corresponding working status indicator lights, which can be called through the program to realize real-time monitoring of the status of SIM cards, such as the silent period, over-traffic, approaching out-of-service, etc., and promptly discover and handle abnormal statuses. For SIM cards that are about to be out of service, the card pool management software can perform operations such as renewing the fee or replacing the SIM card in advance to avoid the interruption of services of virtual card devices due to the out-of-service of SIM cards.

[0031] Specifically, the power module is interconnected with the ARM main control board through signal line 1 (a 2-core power cord), converts the externally input AC 220V power into 5V, 12V, and 24V DC power, and supplies it to the ARM main control board through the signal line, and then powers the specified standard SIM card holders on the card strip. The power module converts the externally input AC 220V into 5V / 12V / 24V power to drive the ARM main control board, the temperature-controlled fan, and the card strip slot board.

[0032] The ARM main control board is interconnected with the card strip slot board through signal line 2 (an 8-core ribbon cable). The network port and serial port are welded to the ARM main control board. The card strips are all fastened to the ARM main control board and the card strip slot board by a snap-on method. Among them, in order to prevent misinsertion, the slot of the ARM main control board is designed with 2 rows of 10 pins, and the slot of the card strip slot board is designed with 2 rows of 8 pins.

[0033] The ARM main control board is interconnected with the temperature-controlled fan through signal line 3 (a 2-core power cord), and the ARM main control board supplies power to the temperature-controlled fan. The LED indicator lights outside the chassis are welded to the card strip slot board by welding; all boards are installed in the cloud SIM card chassis by screwing.

[0034] Specifically, there are 16 to 64 card strips, the slot of the ARM main control board is 2 rows of 10 pins, and the card strip slot board includes 16 to 64 card strip slots, and the slots are 2 rows of 8 pins.

[0035] Specifically, the SIM card module includes 1 to 16 card strips, and the SIM card module follows the ISO7816 standard protocol to perform operations such as powering on, activating, and reading SIM card data on the SIM cards in the card slot components. Each SIM card slot in the SIM card module is provided with an indicator light.

[0036] The intelligent cloud card pool includes a cloud card pool management system, as Figure 4 shown, and includes the following steps: S01. Power on the card pool; S02. Start the Linux system in the ARM main control board; S03. Start the cloud card pool management system; S04. The cloud card pool management system includes standardizing the configuration of SIM card pool parameter information, including the standard configuration process and configuration content, including SIM card country, telecom operator interface, and docking interface information of the service server. By standardizing the configuration parameter content through the developed card pool management system, the parameter configuration work can be conveniently implemented, the difficulty of network technology work is reduced, and thus the remote technology work is greatly optimized. The interface of the cloud card pool management system is as Figure 7 shown; S05. Self-check the SIM cards inside the card pool; S06. The card pool reports to the service server to update the SIM card status information in the database; S07. The service server applies to call the SIM cards in the card pool to a specified virtual card client; S08. The card pool obtains the telecom base station information of the virtual card terminal device and activates the SIM cards in the card pool; S09. Upload the activated SIM cards to the virtual card client device; S10. During the use of the virtual card, the card pool conducts inspections, and timely calculates the KEY value of the virtual card authentication according to the virtual card authentication transmitted by the virtual card client, performs SIM card authentication calculation, returns the authentication result, and updates the card information status to enable the virtual card to communicate normally; S11. During the use of the client, the card pool inspects the SIM cards, and at any time assists in the SIM card authentication calculation and updates the card information status to enable the virtual card to implement functions and update the SIM card status to the telecom operator, including the traffic consumption and voice function consumption; S12. When the client terminates the use, the card pool recovers the SIM card resources and reports them to the service server for standby; Loop S06 - S12.

[0037] Among them, the determination process of the SIM card country information (telecom operator information) of the card pool is as Figure 5 shown. Taking the 2G mode as an example, it is as follows, (the 3G, 4G, and 5G processes are similar): S01. Start the cloud card pool management system; S02. The cloud card pool management system sets the confirmation and revision of SIM card pool parameters, including SIM card country, telecom operator interface, and docking interface information of the server; S03. Self-check the SIM cards inside the card pool and read the IMSI and KI information inside the SIM cards; S04. The card pool reporting service server obtains the visitor location register (VLR) through the end user and initiates an authentication request to the local network. S05. The telecom operator side (base station) compares the received application with the SIM card center database, associates the SIM card's place of origin, generates an authentication random number (RAND), and sends it back to the card pool. S06. The SIM card in the card pool obtains the authentication random number (RAND), combines it with the IMSI and KI of the SIM card to calculate an authentication response (SRES), and feeds it back to the base station. The authentication calculation algorithm is generally A3 or A8 etc. agreed upon within the telecom operator.

[0038] S07. Activate the SIM card in the card pool and read the data inside the SIM card (obtain traffic). S08. The service server records the obtained SIM card information status data.

[0039] The present invention also includes a cloud positioning function for virtual card users traveling overseas, such as Figure 6 shown, the process is as follows: S01. The service server issues a cloud positioning request (the user triggers SOS at the client side). S02. The cloud card pool management system verifies and records the instant information of the user's SIM card. S03. Scan the SIM card and record the IP information. S04. Save the IP information. S05. Replace the SIM card and initiate an authentication request to the local network. Loop S03 - S05 four to five times. S06. Analyze the IP location, obtain the base station location, and locate the person's location.

[0040] Cloud positioning can obtain the spatial location of a person more accurately through the IP scanning of multiple SIM cards. Generally speaking, cloud positioning consumes less power than satellite positioning, which is beneficial for protecting people. Cloud positioning obtains location information through base station network differential information and is often more accurate. Especially in the case where there is no satellite signal for indoor people, the advantages of cloud positioning are more prominent.

[0041] Cloud positioning is mainly developed for countries and regions with relatively high travel risks, and its emergency response function is relatively prominent, and its security role is of great significance.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Modifications, alterations, substitutions, and variations made by those of ordinary skill in the art to the above embodiments all fall within the scope of the present invention.

Claims

1. An intelligent cloud card pool based on the ARM architecture, characterized in that: It includes an ARM main control board, a card slot board, cards, a power module, and a temperature-controlled fan. The ARM main control board is connected to the card slot board, the power module, and the temperature-controlled fan. The ARM main control board is connected to a network port and a serial port. The ARM main control board includes an ARM chip, a storage chip, and several slots that are connected to each other. The card slot board includes several slots. Several cards are connected to the slots of the ARM main control board and the slots of the card slot board. The card slot board is connected to LED indicators.

2. The intelligent cloud card pool based on the ARM architecture according to claim 1, wherein: The power module converts the externally input AC 220V power into 5V, 12V, and 24V DC power and supplies it to the ARM main control board through signal lines, thereby powering the specified standard SIM card holders on the cards.

3. The intelligent cloud card pool based on the ARM architecture according to claim 1, characterized in that: There are 16 to 64 cards. The slots of the ARM main control board are 2 rows of 10 pins. The card slot board includes 16 to 64 card slots, and the slots are 2 rows of 8 pins.

4. The intelligent cloud card pool based on the ARM architecture according to claim 1, wherein: The ARM main control board, the card slot board, the cards, the power module, and the temperature-controlled fan are integrated in a cloud SIM card chassis.

5. An intelligent cloud card pool based on the ARM architecture according to claim 1, characterized in that: The ARM main control board includes a CPU module, a communication module, and a SIM card module. The CPU module is the ARM926EJ-S core S3C2416 with an ARM architecture and the ARM CORTEX-A7 i.MX 6ULL. The main control board of the communication module is encapsulated with a standardized interface and includes an internal bus interface and an RJ-45 external network interface.

6. The intelligent cloud card pool based on the ARM architecture according to claim 5, characterized in that: The SIM card module includes 1 to 16 cards. The SIM card module performs operations such as powering on, activating, and reading SIM card data on the SIM cards in the card slot component according to the ISO7816 standard protocol. Each SIM card slot in the SIM card module is provided with an indicator light.

7. An intelligent cloud card pool based on the ARM architecture according to claim 1, characterized in that, The intelligent cloud card pool includes a cloud card pool management system. The cloud card pool management system includes standardizing the configuration of SIM card pool parameter information, including the standard configuration process and configuration content. The SIM card pool parameter information includes SIM card country, telecom operator interface, and docking interface information of the server.

8. The intelligent cloud card pool based on the ARM architecture according to claim 1, wherein, During the operation of the intelligent cloud card pool management system, the card pool reports SIM card information to the service server; the service server applies to call the SIM cards in the card pool for a specified virtual card client; the card pool obtains the telecom base station information of the virtual card terminal device and activates the SIM cards in the card pool; the activated SIM cards are uploaded to the virtual card client device. During the use of the virtual card, the card pool conducts inspections, calculates the KEY value for virtual card authentication according to the virtual card authentication transmitted by the virtual card client, performs SIM card authentication calculation, returns the authentication result, and updates the information status of the card. During the use of the client, the card pool inspects the SIM card, assists in SIM card authentication calculation, updates the card information status, and updates the SIM card status to the telecom operator, including the consumption of traffic and voice functions. When the client terminates the use, the card pool recovers the SIM card resources and reports them to the service server for standby.

9. The intelligent cloud card pool based on the ARM architecture according to claim 8, wherein The determination of the country information of the SIM card includes: the card pool reads the IMSI and KI information inside the SIM card; the card pool reports to the service server, obtains the Visitor Location Register (VLR) through the end user, and initiates an authentication request to the local network; the telecom operator side compares with the SIM card central database according to the received application, associates the SIM card's place of origin, generates an authentication random number RAND, and returns it to the card pool; the SIM card in the card pool obtains the authentication random number RAND, combines it with the IMSI and KI of the SIM card to calculate the authentication response SRES, and feeds it back to the base station; activates the SIM card in the card pool, reads the data inside the SIM, and obtains the traffic; the service server records the status data of the obtained SIM card information.

10. The intelligent cloud card pool based on the ARM architecture according to claim 1, characterized in that, The intelligent cloud card pool further includes the cloud positioning of virtual card users, specifically including the service server sending a cloud positioning request; the cloud card pool management system checking and recording the instant information of the user's SIM card; SIM card scanning and recording the IP information; saving the IP information; replacing the SIM card and initiating an authentication request to the local network; analyzing the IP location, obtaining the base station location, and positioning the personnel location.

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