Mobile terminal communication expansion system and positioning method and device of mobile terminal auxiliary equipment

Abstract

The invention discloses a mobile terminal communication expansion system and a positioning method and device of mobile terminal auxiliary equipment. The system comprises a terminal device; the auxiliary equipment is connected with the terminal equipment, and the auxiliary equipment comprises a positioning module; wherein the positioning module is used for receiving a navigation signal sent by the satellite navigation system, sending the navigation signal to the terminal equipment through the auxiliary equipment, and after receiving correction information returned by the terminal equipment, carrying out positioning calculation by utilizing the correction information to obtain the position information of the terminal equipment. According to the invention, the technical problem that the power inspection and repair efficiency is low due to the fact that a mobile phone back splint device adopted in the related technology is low in positioning precision and cannot realize accurate marking of a fault point is solved.

Description

Technical Field

[0001] This application relates to the field of mobile communication technology, and more specifically, to a system for extending mobile terminal communication, a positioning method and apparatus for mobile terminal auxiliary devices. Background Technology

[0002] In the operation and maintenance management of the modern power industry, the combined use of smartphones and phone clips has gradually become a mainstream trend to improve work efficiency and convenience. However, the phone clips in this technology mainly rely on Bluetooth communication technology to achieve data sharing and functional collaboration with smartphones. Although this communication method is convenient, its positioning accuracy is limited, especially in areas with many natural obstacles such as mountains and hills, as well as in urban environments with dense high-rise buildings. Due to signal obstruction and electromagnetic interference, its positioning error is relatively large, making it impossible to accurately mark fault points, resulting in low efficiency in power inspection and emergency repair.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] This application provides a system for extending mobile terminal communication, a positioning method and apparatus for mobile terminal auxiliary devices, to at least solve the technical problem that the positioning accuracy of mobile phone back clip devices used in related technologies is low, which makes it impossible to accurately mark fault points and leads to low efficiency in power inspection and emergency repair.

[0005] According to one aspect of the embodiments of this application, a system for extending mobile terminal communication is provided, including: a terminal device; and an auxiliary device, wherein the auxiliary device is connected to the terminal device and includes a positioning module; wherein the positioning module is used to receive navigation signals sent by a satellite navigation system and send the navigation signals to the terminal device through the auxiliary device; after receiving correction information returned by the terminal device, the positioning module uses the correction information to perform positioning calculation to obtain the position information of the terminal device; wherein the correction information is information obtained by the terminal device sending the navigation signals to a differential server for differential correction calculation; the differential correction calculation is used to determine the error between the first navigation signal received by the auxiliary device and the second navigation signal received by the reference station of the satellite navigation system.

[0006] In some embodiments of this application, the auxiliary device further includes a scanning module, which is used to send radio frequency signals to the target area where the electronic tag is located, and after receiving the return signal of the electronic tag corresponding to the radio frequency signal, decodes the return signal to obtain tag information and sends the tag information to the terminal device.

[0007] In some embodiments of this application, the system further includes a differential server for receiving a first navigation signal sent by a mobile terminal and a second navigation signal from a reference station of a satellite navigation system, wherein the first navigation signal includes a signal received by a receiver chip in a positioning module; and for calculating differential corrections between the first navigation signal and the second navigation signal to obtain correction information.

[0008] In some embodiments of this application, the auxiliary device further includes a microcontroller unit, wherein the microcontroller unit is connected to the positioning module; the microcontroller unit is used to encode verification information into the navigation signal after receiving the navigation signal sent by the positioning module to obtain the target navigation signal, wherein the verification information is used to detect data errors generated when the navigation signal is transmitted from the positioning module to the differential server; and to send the target navigation signal to the terminal device.

[0009] In some embodiments of this application, the microcontroller unit is further configured to encrypt the target navigation signal with a first key before sending the target navigation signal to the terminal device to obtain a first encrypted navigation signal, wherein the first key includes a symmetric key pre-stored in the microcontroller unit; obtain a second key from a differential server, wherein the second key includes a public key provided by the differential server; and encrypt the first key in the first encrypted navigation signal with the second key to obtain a second encrypted navigation signal.

[0010] In some embodiments of this application, the scanning module includes a radio frequency module, wherein the radio frequency module is connected to a microcontroller unit in the auxiliary device; the scanning module is used to obtain a target frequency point from the microcontroller unit, wherein the target frequency point includes a preset frequency point in the microcontroller unit for communicating with the electronic tag; determine the radio frequency signal corresponding to the target frequency point, and send the radio frequency signal to the target area where the electronic tag is located through the auxiliary device.

[0011] In some embodiments of this application, the scanning module includes a ceramic antenna, which is used to transmit radio frequency signals to the target area where the electronic tag is located. The ceramic antenna is an antenna made of a ceramic substrate whose dielectric constant meets a preset threshold.

[0012] In some embodiments of this application, the ceramic antenna includes a first feed point and a second feed point, wherein the first feed point is disposed on a first axis, the second feed point is disposed on a second axis, the first axis and the second axis are perpendicular to each other, and the first distance between the first feed point and the radiation center of the ceramic antenna and the second distance between the second feed point and the radiation center are equal.

[0013] In some embodiments of this application, the power of the first signal received by the ceramic antenna from the first feed point and the power of the second signal received from the second feed point are equal, and the phase difference between the first signal and the second signal is 90°.

[0014] In some embodiments of this application, the radiator of the ceramic antenna is an F-shaped stub bend structure, and the grounding plane of the ceramic antenna is an L-shaped grounding structure. The F-shaped stub bend structure consists of a central radiating arm and multiple side branches, each side branch adopting a bend design. The L-shaped grounding structure consists of two perpendicular and intersecting grounding planes.

[0015] According to another aspect of the embodiments of this application, a positioning method for a mobile terminal auxiliary device is also provided, comprising: the auxiliary device connected to the terminal device acquiring a first navigation signal sent by a satellite navigation system; sending the first navigation signal to the terminal device; receiving correction information returned by the terminal device, wherein the correction information is information obtained by the terminal device sending the first navigation signal to a differential server for differential correction calculation, the differential correction calculation being used to determine the error between the first navigation signal received by the auxiliary device and the second navigation signal received by the reference station of the satellite navigation system; and performing positioning calculation using the correction information to obtain the position information of the terminal device.

[0016] According to another aspect of the embodiments of this application, a positioning device for a mobile terminal auxiliary device is also provided, comprising: an acquisition module for the auxiliary device connected to the terminal device to acquire a first navigation signal sent by a satellite navigation system; a transmission module for transmitting the first navigation signal to the terminal device; a receiving module for receiving correction information returned by the terminal device, wherein the correction information is information obtained by the terminal device sending the first navigation signal to a differential server for differential correction calculation, the differential correction calculation being used to determine the error between the first navigation signal received by the auxiliary device and the second navigation signal received by the reference station of the satellite navigation system; and a determination module for performing positioning calculation using the correction information to obtain the position information of the terminal device.

[0017] According to another aspect of the embodiments of this application, an electronic device is also provided, including: a memory and a processor, wherein the memory is used to store program instructions; the processor is connected to the memory and is used to execute the positioning method for implementing the above-described mobile terminal auxiliary device.

[0018] According to another aspect of the embodiments of this application, a non-volatile storage medium is also provided, the non-volatile storage medium including a stored computer program, wherein the device containing the non-volatile storage medium executes the above-described positioning method of the mobile terminal auxiliary device by running the computer program.

[0019] According to another aspect of the embodiments of this application, a computer program product is also provided, including computer instructions that, when executed by a processor, implement the above-described positioning method for a mobile terminal auxiliary device.

[0020] In this embodiment, an integrated positioning module is used in the auxiliary device. Through collaborative connection with the terminal device, the positioning module in the auxiliary device receives navigation signals from the satellite navigation system and transmits them to the connected terminal device. The terminal device further sends the signals to the differential server to generate correction information. Finally, the positioning module uses this information to perform positioning calculations and obtain high-precision location information, thereby improving the accuracy of location information acquisition. This achieves the technical effect of accurate marking and navigation, and solves the technical problem of low positioning accuracy of mobile phone clip devices used in related technologies, which cannot accurately mark fault points and lead to low efficiency in power inspection and emergency repair. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a hardware structure block diagram of a computer terminal for positioning a mobile terminal auxiliary device according to an embodiment of this application;

[0023] Figure 2 This is an architecture diagram of a mobile terminal communication extension system according to an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the communication connection of a mobile terminal communication extension system according to an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of an auxiliary device for a mobile terminal communication extension system according to an embodiment of this application;

[0026] Figure 5 This is a flowchart of a positioning method for a mobile terminal auxiliary device according to an embodiment of this application;

[0027] Figure 6 This is a schematic diagram of the structure of a positioning device for a mobile terminal auxiliary device according to an embodiment of this application. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] To better understand the embodiments of this application, the technical terms involved in the embodiments of this application are explained below:

[0031] Global Navigation Satellite System (GNSS): GNSS is a satellite navigation system that provides global positioning, navigation and timing services. In the embodiments of this application, the high-precision positioning function of GNSS is integrated into the auxiliary equipment of the terminal device, and differential technology can be used to ensure accurate positioning even in complex terrain and urban environments, so as to meet the needs of emergency repair and inspection of power facilities.

[0032] Real-Time Kinematic (RTK) positioning technology is a method that uses carrier phase differential technology to improve satellite positioning accuracy. By receiving differential correction data sent by a base station in real time, positioning accuracy can be improved to the centimeter level. In the embodiments of this application, RTK technology is applied to the positioning module. Through cooperation with a differential server, real-time centimeter-level positioning accuracy is achieved, enabling precise marking and positioning of power facilities, and optimizing inspection and emergency repair operations.

[0033] Microcontroller Unit (MCU): An MCU is a single-chip microcomputer that integrates a central processing unit, memory, and multiple input / output interfaces. It is used to control various electronic devices and systems. In the embodiments of this application, the MCU serves as the core control unit, which coordinates the data processing and communication between the power management, radio frequency module, and positioning module to optimize and unify the functions and ensure the stable operation of the handheld mobile power terminal communication extension device.

[0034] Type-C interface (Universal Serial Bus Type-C, abbreviated as USB-C): The Type-C interface is a USB interface standard that supports reversible insertion and provides functions such as high-speed data transmission, power transmission and video output. In the embodiments of this application, the Type-C interface serves as a connection bridge between auxiliary devices and terminal devices, realizing data transmission and power supply, while also supporting the charging of auxiliary devices, ensuring efficient communication and energy supply between devices.

[0035] Clamshell Accessory: A clamshell accessory is a device that can be attached to the back of a smartphone to provide additional functions or protection. In some embodiments of this application, the clamshell accessory and the phone back clip together form an auxiliary device. The clamshell accessory integrates a scanning module and a positioning module and connects to the phone back clip through a Type-C interface, providing high-precision positioning and efficient electronic tag scanning functions for outdoor operations in the power industry, significantly improving work efficiency and intelligence.

[0036] With the rapid iteration of technology, the power industry has placed higher demands on the level of intelligence and functional integration in equipment maintenance and repair. In actual outdoor work scenarios, the operation mode of using smartphones in conjunction with phone clips has become an important and widely adopted working method in the industry. Among related technologies, the phone clip, as an auxiliary device integrating multiple functions, achieves seamless connection with smartphones through Bluetooth communication technology. It can not only perform professional-grade data acquisition functions such as ordinary infrared meter reading (suitable for reading meter data in conventional scenarios), laser infrared meter reading (supporting accurate aiming and data acquisition at a distance of up to 50 meters, effectively meeting the needs of long-distance equipment inspection), and 485 meter reading (compatible with the bus communication protocol of industrial-grade equipment, meeting the data interaction needs of complex equipment), but also simultaneously possess practical auxiliary functions such as a large-capacity power bank (usually equipped with a battery capacity of ≥5000mAh, providing all-day battery life support for smartphones) and a wireless hotspot (supporting multiple devices to connect to the network simultaneously, building a temporary work network). From improving the efficiency of data acquisition to providing continuous power to the work equipment, it brings comprehensive operational convenience and task support to outdoor workers.

[0037] However, the mobile phone clip-on system used in these technologies still has significant application bottlenecks, especially in complex outdoor terrains (such as signal obstruction in mountainous and hilly areas and electromagnetic interference from forest vegetation) and urban environments (multipath effects caused by high-rise buildings and mutual interference from dense electromagnetic signals). Two major shortcomings are exposed: First, there is a lack of positioning capabilities with centimeter-level to meter-level accuracy. For example, the positioning error of Bluetooth or ordinary GPS is usually 5 to 10 meters, which cannot meet the positioning requirements of "precise to the equipment location" during emergency repairs of power facilities. Second, the scanning efficiency of electronic tags is low. For example, NFC or low-frequency scanning technology can only process 10 to 20 tags per minute, which is difficult to cope with the high-frequency needs of batch inventory and real-time information updates in power asset management.

[0038] In critical scenarios such as power facility inspection (e.g., regular hazard checks on high-voltage transmission lines) and emergency repairs (e.g., rapid fault location after disasters like typhoons and rainstorms), operators urgently need to acquire and maintain high-precision location information within a short timeframe to accurately mark fault points, intelligently plan maintenance routes, and safely define operational areas. Meanwhile, electronic tags, as the fundamental carrier of digital management of power assets, are crucial for ensuring the dynamic accuracy of asset ledgers through rapid inventory checks (e.g., batch reading of substation equipment tags) and information editing (e.g., real-time updates of tag data after equipment status changes). However, while the mobile phone clip-on devices used in these technologies have achieved multi-technology integration at the basic functional level, their positioning accuracy and tag processing efficiency in complex environments still fall significantly short of actual industry needs. This contradiction has become a key technical pain point restricting the intelligent upgrading of outdoor operations in the power industry, urgently requiring resolution through technological innovation and product iteration.

[0039] To address the aforementioned technical problems, this application provides corresponding solutions, which are detailed below.

[0040] The positioning method for mobile terminal auxiliary devices provided in this application can be executed in a mobile terminal, computer terminal, or similar computing device. Figure 1 A hardware block diagram of a computer terminal for implementing a positioning method for a mobile terminal auxiliary device is shown. Figure 1As shown, the computer terminal 10 may include one or more processors (shown as 102a, 102b, ..., 102n in the figure) (the processor may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 104 for storing data, and a transmission module 106 for communication functions connected via wired and / or wireless networks. In addition, it may also include: a display, a keyboard, a cursor control device, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I / O interface), a network interface, and a BUS bus. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, computer terminal 10 may also include... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0041] It should be noted that the aforementioned one or more processors and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be implemented wholly or partially as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or may be wholly or partially integrated into any other element in the computer terminal 10. As involved in the embodiments of this application, the data processing circuits serve as processor control (e.g., selection of a variable resistor termination path connected to an interface).

[0042] The memory 104 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the positioning method of the mobile terminal auxiliary device in this embodiment. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory 104, thereby realizing the positioning method of the mobile terminal auxiliary device described above. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor, and these remote memories can be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0043] The transmission module 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the computer terminal 10. In one example, the transmission module 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission module 106 may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0044] The display may be, for example, a touchscreen liquid crystal display (LCD) that allows the user to interact with the user interface of the computer terminal 10.

[0045] It should be noted here that, in some optional embodiments, the above... Figure 1 The computer terminal shown may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium), or a combination of both hardware and software elements. It should be noted that... Figure 1 This is only one instance of a specific particular instance, and is intended to illustrate the types of components that may exist in the aforementioned computer terminal.

[0046] In the above operating environment, this application provides an embodiment of a positioning method for a mobile terminal auxiliary device. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0047] Figure 2 This is an architecture diagram of a mobile terminal communication extension system according to an embodiment of this application, such as... Figure 2 As shown, the system includes:

[0048] The system includes a terminal device 202 and an auxiliary device 204, wherein the auxiliary device 204 is connected to the terminal device 202 and includes a positioning module 204a. The positioning module 204a receives navigation signals sent by the satellite navigation system and sends the navigation signals to the terminal device 202 through the auxiliary device 204. After receiving correction information returned by the terminal device 202, it uses the correction information to perform positioning calculations to obtain the position information of the terminal device 202. The correction information is obtained by the terminal device 202 sending the navigation signals to a differential server for differential correction calculation. The differential correction calculation is used to determine the error between the first navigation signal received by the auxiliary device 204 and the second navigation signal received by the reference station of the satellite navigation system.

[0049] Specifically, terminal equipment refers to handheld mobile devices carried by users, such as smartphones, which are responsible for performing the main operation and display functions. Auxiliary equipment refers to devices connected to the terminal equipment, which are used to extend the functions of the terminal equipment, such as additional functions like high-precision positioning and electronic tag scanning.

[0050] The positioning module is a component in the auxiliary equipment, responsible for receiving satellite navigation signals and performing positioning calculations to achieve high-precision positioning capabilities, such as centimeter-level positioning achieved through RTK technology. Satellite navigation systems provide global positioning services, such as the BeiDou system and GPS. The differential server is a remote server that receives navigation signals uploaded by the terminal device, performs differential calculations with base station data, and generates correction information. This correction information is the differential correction result calculated by the differential server, used to correct the original positioning calculations of the positioning module to achieve higher positioning accuracy.

[0051] In some embodiments of this application, the positioning module can receive navigation signals emitted by BeiDou satellites through a built-in high-performance BeiDou receiver chip. The terminal device establishes a high-speed data transmission channel with the auxiliary device through a Type-C interface, and uploads the navigation signals received by the positioning module to a differential server that has been pre-connected to the network. The server performs differential calculations on the received signals and the base station data to generate correction information. The terminal device receives the differential correction data from the differential server. The positioning module uses a Kalman filter fusion algorithm combined with the differential correction data to achieve real-time positioning calculation, thereby achieving sub-meter or even centimeter-level positioning accuracy.

[0052] In some embodiments of this application, the auxiliary device 204 further includes a microcontroller unit 204b, wherein the microcontroller unit 204b is connected to the positioning module 204a; the microcontroller unit 204b is used to encode verification information into the navigation signal after receiving the navigation signal sent by the positioning module 204a to obtain the target navigation signal, wherein the verification information is used to detect data errors generated when the navigation signal is transmitted from the positioning module 204a to the differential server; and to send the target navigation signal to the terminal device 202.

[0053] Specifically, a microcontroller unit (MCU) is a single-chip microcomputer that includes a central processing unit, memory (RAM and ROM), and input / output interfaces. It is responsible for controlling and managing the data flow between the positioning module and the terminal device to ensure accurate data transmission and processing.

[0054] Verification information is added to data packets to ensure the integrity and accuracy of data transmission. It is used to detect errors that may occur during data transmission, such as inconsistencies between the data received by the receiver and the data sent by the sender due to factors such as channel interference, equipment failure, or software errors.

[0055] In some embodiments of this application, the MCU, as the core control unit of the auxiliary device, is responsible for receiving the raw navigation signal transmitted by the positioning module, including but not limited to satellite observation data, timestamps, and other information. The MCU adds a checksum such as CRC (Cyclic Redundancy Check) to the navigation signal to form the target navigation signal. The CRC code is generated through a series of mathematical operations (such as polynomial division) and can effectively detect transmission errors. After obtaining the target navigation signal, the MCU can transmit the target navigation signal to the terminal device through the Type-C interface. The terminal device then uploads the signal to the differential server via a wireless or wired network for differential correction calculation.

[0056] During data transmission, network latency or signal interference may affect the synchronization between the original navigation signal and the verification information, leading to verification failure or decreased positioning accuracy. To address this issue, a timestamp synchronization mechanism can be employed. For example, when encoding the verification information, the MCU simultaneously records the signal's timestamp. This way, even if the signal is delayed during transmission, the terminal device can resynchronize the verification information and navigation signal based on the timestamp, ensuring the accuracy of the verification.

[0057] In some embodiments of this application, the microcontroller unit 204b is further configured to encrypt the target navigation signal with a first key before sending the target navigation signal to the terminal device 202 to obtain a first encrypted navigation signal, wherein the first key includes a symmetric key pre-stored in the microcontroller unit 204b; obtain a second key from a differential server, wherein the second key includes a public key provided by the differential server; and encrypt the first key in the first encrypted navigation signal with the second key to obtain a second encrypted navigation signal.

[0058] Specifically, the MCU pre-stores a symmetric key (i.e., the first key). When a target navigation signal is received from the positioning module, this symmetric key is used to encrypt the signal. It should be noted that the encryption algorithm can be AES, 3DES, or other symmetric encryption algorithms, which are not limited here. The MCU establishes a secure channel with the differential server, requests and receives the differential server's public key (i.e., the second key). For example, the MCU exchanges keys with the differential server through a security protocol (such as TLS) to ensure the security of the key transmission process. The MCU uses the public key obtained from the differential server to perform a second encryption on the first key, forming an encryption layer to protect the first key.

[0059] Because the public key of the differential server is public, but the private key is held only by the differential server, the first key encrypted with the second key can only be decrypted by the differential server, thus ensuring the security of the data during transmission. Even in complex power inspection environments, the privacy and security of the location data can be maintained.

[0060] In some embodiments of this application, the system further includes a differential server for receiving a first navigation signal sent by a mobile terminal and a second navigation signal from a reference station of a satellite navigation system, wherein the first navigation signal includes a signal received by the receiver chip in the positioning module 204a; and for calculating differential corrections between the first navigation signal and the second navigation signal to obtain correction information.

[0061] Specifically, the first navigation signal is the raw satellite navigation signal received by the mobile terminal's positioning module, containing data such as time information and distance measurements. For example, the first navigation signal can be received by the receiver chip in the BeiDou positioning module. The second navigation signal is a reference station signal from the satellite navigation system, used to correct errors in the first navigation signal. For example, the second navigation signal can come from a BeiDou system reference station and contains high-precision reference information.

[0062] Differential correction calculation is the process by which the differential server compares and analyzes the first navigation signal and the second navigation signal to calculate satellite clock error, ephemeris error and other systematic errors, and generates correction information.

[0063] In some embodiments of this application, the mobile terminal uploads the first navigation signal to the differential server via a network (such as a 4G / 5G cellular network or Wi-Fi). Simultaneously, the differential server receives the second navigation signal from the base station via a dedicated network or a direct connection. Based on the received first and second navigation signals, the differential server calculates corrections using a differential algorithm (such as L1 carrier phase differential). This algorithm takes into account factors such as satellite clock errors, ephemeris errors, and atmospheric delays to generate correction information.

[0064] It should be noted that in practical applications, if the distance between the mobile terminal and the base station is too far, it may affect the calculation accuracy of the differential correction and lead to an increase in positioning error. To address this, when performing calculations, the differential server can prioritize using the signal of the target base station closest to the mobile terminal from among the multiple base stations deployed in the power inspection and emergency repair operation area. This can reduce signal distortion and errors caused by excessive distance.

[0065] To facilitate understanding of the functions of the positioning module described above, the following explanation uses specific embodiments, taking the BeiDou Navigation Satellite System as an example. The BeiDou positioning module can consist of a high-performance BeiDou receiver chip and a matching antenna. The high-performance BeiDou receiver chip can receive navigation signals emitted by the BeiDou Navigation Satellite System. It should be noted that the BeiDou positioning module can also internally perform a series of algorithmic processing tasks, including signal acquisition, tracking, decoding, and positioning calculations, and communicates with the main processor system of the handheld mobile terminal (i.e., the terminal device) through a specially designed interface specification.

[0066] To achieve high-precision positioning, in some embodiments of this application, BeiDou differential positioning technology can also be used. After receiving the original satellite signal, the BeiDou positioning module sends its relevant information to the designated differential server. The differential server compares and analyzes the signals received by the base station and the mobile terminal, calculates the satellite clock error, ephemeris error and other systematic errors, and feeds back these correction information to the mobile terminal.

[0067] The mobile terminal can upload the preliminary pseudorange, carrier phase and other positioning information to the differential server wirelessly or via a communication module connected through a Type-C interface. At the same time, the terminal can receive differential correction data sent back from the differential server. This correction data is then combined with the differential correction data using a Kalman filter fusion algorithm to achieve real-time positioning calculation with a horizontal accuracy of sub-meter level (CEP95≤0.8m). When RTK mode is supported, it can reach centimeter level.

[0068] It should be noted that this modular design for BeiDou positioning also supports real-time dynamic positioning (RTK) mode, which can continuously send real-time observation data to the differential server, ensuring that high-precision location information can be quickly obtained and maintained even in complex terrain and urban environments. This is especially important for application scenarios such as power facility inspection and emergency repair.

[0069] To ensure the stability and reliability of the positioning service, this application can also optimize the data exchange process between the Beidou positioning module and the differential server, including error detection and correction mechanisms, encrypted data transmission, and adaptive strategies for changes in network conditions, so as to ensure that reliable positioning services can be obtained even under poor network conditions.

[0070] In some embodiments of this application, the auxiliary device 204 further includes a scanning module 204c, which is used to send radio frequency signals to the target area where the electronic tag is located, and after receiving the return signal of the electronic tag corresponding to the radio frequency signal, decodes the return signal to obtain tag information and sends the tag information to the terminal device 202.

[0071] Specifically, the scanning module is a component in the auxiliary equipment, responsible for sending radio frequency signals to the electronic tag and receiving signals returned by the tag, thereby obtaining tag information. In some embodiments of this application, the scanning module adopts ultra-high frequency radio frequency identification (UHF-RFID) technology, which can realize long-distance and non-contact automatic identification and improve the scanning efficiency of power asset tags.

[0072] Radio frequency (RF) signals are electromagnetic wave signals sent by the scanning module to the electronic tag to activate the electronic tag and request it to send stored information. For example, RF signals can be UHF band signals, which have strong penetration ability and long operating distance, and are suitable for rapid scanning of electronic tags in power facility inspection.

[0073] Electronic tags are small devices attached to power assets that can store and transmit asset information. When a radio frequency signal is received, the electronic tag transmits the stored information back through electromagnetic induction or near-field communication. The tag information is the asset information contained in the decoded electronic tag transmission signal, such as asset ID, status, and location.

[0074] In some embodiments of this application, the scanning module integrates a high-performance UHF radio frequency transceiver chip, which transmits radio frequency signals in a specific frequency band through a customized ceramic antenna. The transmission frequency and power of the radio frequency signal can be controlled by an MCU to ensure that the signal covers all electronic tags within the target area. After receiving the radio frequency signal, the electronic tag is activated by its own power or an external power supply and transmits the stored information back to the scanning module via the radio frequency signal. After receiving the returned signal, the scanning module uses its built-in decoding algorithm to decode and extract the electronic tag's ID and other information.

[0075] It should be noted that the scanning module establishes a connection with the terminal device through the Type-C interface, which can transmit the decoded tag information to the terminal device in real time. The terminal device can then display, store, or further process this information.

[0076] At power facility inspection sites, staff need to quickly obtain information from a large number of electronic tags. Traditional NFC or low-frequency RFID technologies have short scanning distances and low efficiency. However, with the UHF-RFID scanning module, long-distance, multi-tag simultaneous scanning can be achieved, which significantly improves the efficiency of power asset tag inventory and information editing speed, and meets the high-frequency needs of batch inventory and real-time information updates in power asset management.

[0077] In environments with dense power infrastructure or severe signal interference, the scanning module may receive feedback signals from multiple electronic tags, leading to delays in information decoding and processing, and impacting work efficiency. To address this issue, a multi-tag recognition algorithm can be run in the scanning module or MCU. This algorithm can process multiple signals simultaneously, distinguishing feedback signals from different electronic tags, ensuring fast and accurate decoding of multiple tag information in complex environments. For example, time-division multiple access (TDMA) can be used to divide time into multiple time slots and allocate them to different electronic tags to avoid signal conflicts. The MCU can pre-set a schedule based on the recognition algorithm, allocating a specific feedback signal time window for each electronic tag.

[0078] For example, by using frequency coding technology, a specific frequency offset is added to the return signal of the electronic tag, making the signal of each tag identifiable in the frequency domain. The MCU guides the electronic tag to carry a specific frequency identifier when transmitting the signal by fine-tuning the carrier frequency of the radio frequency signal. In addition, the MCU can also determine whether the signal comes from a tag in the target area and whether the signal is interfered with by analyzing the strength of the received electronic tag return signal. For example, it can distinguish between valid signals and interference signals by using signal strength analysis technology, and locate the relative position of the electronic tag.

[0079] In some embodiments of this application, the scanning module 204c includes a radio frequency module, wherein the radio frequency module is connected to the microcontroller unit 204b in the auxiliary device 204; the scanning module 204c is used to obtain a target frequency point from the microcontroller unit 204b, wherein the target frequency point includes a preset frequency point in the microcontroller unit 204b for communicating with the electronic tag; determine the radio frequency signal corresponding to the target frequency point, and send the radio frequency signal to the target area where the electronic tag is located through the auxiliary device 204.

[0080] Specifically, the radio frequency (RF) module is part of the scanning module and includes hardware for transmitting and receiving RF signals, such as antennas and RF chips. The RF module can be connected to a microcontroller unit and is responsible for performing the tasks of transmitting and receiving RF signals.

[0081] To avoid delays and energy waste caused by spectrum scanning, the microcontroller unit (MCU) determines one or more target frequencies based on preset communication protocols and environmental parameters such as distance and interference. This target frequency information is then transmitted to the RF module via interfaces such as I2C or SPI, guiding the RF module to transmit the RF signal. Upon receiving the target frequency information, the RF module uses its internal frequency synthesizer to adjust the carrier frequency of the RF signal to the target frequency. It should be noted that the RF module can also modulate the signal waveform according to preset communication protocols, such as EPCglobal UHF Gen2, to ensure communication compatibility with the electronic tag. Finally, the RF module transmits the determined RF signal through an antenna. Antenna design must consider factors such as directivity, gain, and polarization to ensure effective signal coverage within the target area. For example, a compact ceramic antenna combined with an F-shaped stub bending structure and an L-shaped grounding structure can be used to achieve circularly polarized radiation and high radiation efficiency.

[0082] In some embodiments of this application, the scanning module 204c includes a ceramic antenna, which is used to transmit radio frequency signals to the target area where the electronic tag is located. The ceramic antenna is an antenna made of a ceramic substrate whose dielectric constant meets a preset threshold.

[0083] Specifically, a ceramic antenna is an antenna that uses a ceramic material with a high dielectric constant as its substrate. It has high radiation efficiency and good stability and is used to transmit radio frequency signals in the UHF band to ensure that the signal covers the area where the electronic tag is located, thereby enabling long-distance and contactless asset tag identification.

[0084] In some embodiments of this application, the ceramic antenna includes a first feed point and a second feed point, wherein the first feed point is disposed on a first axis, and the second feed point is disposed on a second axis. The first axis and the second axis are perpendicular to each other, and the first distance between the first feed point and the radiation center of the ceramic antenna and the second distance between the second feed point and the radiation center are equal. The first signal received by the ceramic antenna from the first feed point and the second signal received from the second feed point have equal power, and the phase difference between the first signal and the second signal is 90°.

[0085] Specifically, the first and second feed points are two feed points on the ceramic antenna, respectively located on two perpendicularly intersecting axes, used to input radio frequency signals to achieve circular polarization of the antenna radiation, enhance the antenna's directivity, and reduce environmental influences. The radiation center is the point where the antenna's radiated signal is most concentrated, such as the antenna's geometric center. The location of the radiation center determines the energy distribution of the antenna radiation. By optimizing the feed point layout, the antenna's radiation performance can be improved.

[0086] During power facility inspections, electronic tags may be distributed in different directions. Traditional linear polarized antennas have low reception efficiency at certain angles. To solve this problem, a first feed point and a second feed point can be set in the orthogonal direction of the ceramic antenna to ensure that the distance between the two points and the radiation center is equal. This design can stimulate the circular polarization radiation characteristics of the antenna and enhance the antenna's multi-directional reception capability.

[0087] The MCU ensures that the signals transmitted from the first feed point and the second feed point are 90° out of phase by controlling the phase of the radio frequency signals. The phase difference is the difference in phase angle between two signals of the same frequency, representing the relative time delay of the signals. By precisely controlling the signal phase difference to form circularly polarized radiation, the influence of environmental factors on the signal can be reduced, improving signal stability and the accuracy of electronic tag identification.

[0088] In some embodiments of this application, the radiator of the ceramic antenna is an F-shaped stub bend structure, and the grounding plane of the ceramic antenna is an L-shaped grounding structure. The F-shaped stub bend structure consists of a central radiating arm and multiple side branches, each side branch adopting a bend design. The L-shaped grounding structure consists of two perpendicular and intersecting grounding planes.

[0089] Specifically, the radiator is the part of the antenna responsible for transmitting or receiving electromagnetic waves. The radiator adopts an F-shaped stubby bending structure design, which can generate circularly polarized radiation and improve the identification capability of multi-directional electronic tags. The ground plane is a metal plane used in antenna design to provide a reference point and reduce interference. The L-shaped ground structure can enhance the impedance matching of the antenna, improve radiation efficiency, and help reduce the impact of the external environment on antenna performance.

[0090] In some embodiments of this application, the central radiating arm of the radiator is designed as a straight structure to ensure basic radiation performance, while the side branches are designed to be curved. By adjusting the length and curvature of the side branches, the resonant frequency and polarization characteristics of the antenna can be controlled. For example, the curved design of the side branches can enable the antenna to generate circularly polarized radiation in the 925MHz band.

[0091] To facilitate understanding of the functions of the scanning module described above, the following explanation will be provided in conjunction with some specific embodiments.

[0092] In some embodiments of this application, the ultra-high frequency module can adopt a modular integrated design, with the core consisting of three parts:

[0093] (1) Power management module: To meet the peak current requirement of up to 3A when the module is working, an independent power supply design is adopted. Stable output is achieved through the dedicated power management chip (PMIC) built into the back clip body to ensure the reliability of power supply under high current conditions.

[0094] (2) Single-port UHF RF module: integrates high-performance RF transceiver chip, supports wideband signal processing, and meets the needs of multi-protocol communication.

[0095] (3) Ceramic Antenna: Based on microstrip antenna theory, it uses a high dielectric constant ceramic substrate and achieves a balance between circular polarization radiation and compact size through a unique structure. Specifically, the ceramic antenna can adopt a collaborative design of F-type stub bending structure and L-type grounding structure, including:

[0096] 1) Circular polarization implementation: Set up dual feed points at equidistant positions on the orthogonal X and Y axes, and ensure that the two input powers are equal and the phase difference is 90° through the feeding network to excite the circular polarization radiation characteristics of the antenna and meet the requirements of multi-directional scanning without dead angles.

[0097] 2) Structural optimization: The curved stub design effectively reduces the physical size, and the L-shaped grounding structure enhances impedance matching, enabling the antenna to achieve low VSWR and high radiation efficiency at a center frequency of 925MHz.

[0098] 3) In addition, the relative permittivity ε can be used. r Using a ceramic substrate with a diameter of 21.8 and a thickness of 4.8 mm, the wavelength compression characteristics of the high dielectric constant material are utilized to reduce the antenna size to 1 / 3 of the traditional design, while maintaining a gain of ≥8 dBi and narrow beam directivity.

[0099] It should be noted that in some embodiments of this application, the ceramic antenna simulation center frequency can be locked at 925MHz, fully compatible with the globally accepted EPCglobal UHF Gen2 RFID standard, and can be directly adapted to more than 95% of power asset tags on the market without additional protocol conversion. By using a fixed-frequency communication mode, the latency caused by traditional spectrum scanning is avoided (typically reduced by 200-500ms). In large-scale asset inventory scenarios, tag recognition efficiency is improved by more than 3 times, with a single module capable of processing ≥500 tags per second, significantly shortening the batch inventory cycle.

[0100] Figure 3 This is a schematic diagram of the communication connection of a mobile terminal communication extension system according to an embodiment of this application, as shown below. Figure 3 As shown, in some embodiments of this application, the auxiliary device consists of a phone back clip and a back clip accessory, wherein the back clip accessory may be made of a plastic shell, and through... Figure 3The Type-C interface connects to the phone back clip, and the two sides are secured by protective plates. From top to bottom, the following components are placed: an ultra-high frequency antenna (i.e., a ceramic antenna), an ultra-high frequency module (which together with the high frequency antenna constitutes an ultra-high frequency module, i.e., a radio frequency module), a core board (i.e., an MCU), a Beidou receiver chip, and a Beidou antenna (which together with the Beidou receiver chip constitutes a Beidou positioning module). The phone back clip can connect to terminal devices (such as mobile apps) via Bluetooth, for example.

[0101] Figure 4 This is a schematic diagram of an auxiliary device for a mobile terminal communication extension system according to an embodiment of this application, such as... Figure 4 The diagram illustrates the specific arrangement of each module in the auxiliary equipment, including the UHF antenna compartment (corresponding to the ceramic antenna), module placement (corresponding to the scanning module and positioning module), Type-C port, expansion port, etc.

[0102] This application integrates high-precision BeiDou differential positioning and ultra-high frequency scanning functions into a mobile phone back clip, combined with a Type-C interface connection, to achieve efficient communication and functional expansion with smartphones. The high-precision BeiDou differential positioning function uses RTK (real-time dynamic positioning) technology to ensure rapid and accurate location information acquisition even in complex terrain and urban environments with centimeter-level accuracy. The ultra-high frequency scanning function utilizes UHF (ultra-high frequency) technology to achieve rapid scanning and information editing of electronic tags, greatly improving the efficiency and accuracy of power facility inspection.

[0103] Furthermore, through optimized design of the Type-C interface, this application not only achieves efficient data transmission between the phone back clip and the smartphone, but also makes significant breakthroughs in functional expansion. The addition of high-precision BeiDou differential positioning function enables staff to obtain accurate location information in real time in complex outdoor environments, providing reliable technical support for power emergency repair and inspection. The introduction of ultra-high frequency scanning function further improves the efficiency of power asset management, enabling rapid inventory and editing of electronic tag information.

[0104] Furthermore, this application innovatively integrates high-precision BeiDou differential positioning and ultra-high frequency scanning functions into a mobile phone back clip, and achieves efficient connection with smartphones via a Type-C interface, providing a more intelligent and efficient solution for outdoor operations in the power industry. This technological breakthrough not only improves the efficiency of power facility inspection and emergency repair work, but also injects new vitality into the intelligent development of the power industry.

[0105] Figure 5 This is a flowchart of a positioning method for a mobile terminal auxiliary device according to an embodiment of this application, such as... Figure 5 As shown, the method includes the following steps:

[0106] In step S502, the auxiliary device connected to the terminal device acquires the first navigation signal sent by the satellite navigation system.

[0107] Step S504: Send the first navigation signal to the terminal device.

[0108] Step S506: Receive correction information returned by the terminal device. The correction information is information obtained by the terminal device sending the first navigation signal to the differential server for differential correction calculation. The differential correction calculation is used to determine the error between the first navigation signal received by the auxiliary device and the second navigation signal received by the reference station of the satellite navigation system.

[0109] Step S508: Use the correction information to perform positioning calculation to obtain the location information of the terminal device.

[0110] Through steps S502 to S508 above, by integrating a positioning module into the auxiliary device and coordinating with the terminal device, the positioning module in the auxiliary device receives navigation signals from the satellite navigation system and transmits them to the connected terminal device. The terminal device further sends the signals to the differential server to generate correction information. Finally, the positioning module uses this information to perform positioning calculations and obtain high-precision location information, thereby improving the accuracy of location information acquisition. This achieves the technical effect of accurate marking and navigation, and solves the technical problem of low positioning accuracy of mobile phone clip devices used in related technologies, which cannot accurately mark fault points and lead to low efficiency in power inspection and emergency repair.

[0111] It should be noted that, Figure 5 The positioning method of the mobile terminal auxiliary device shown can be used in Figure 2 The mobile terminal communication extension shown is executed in the system, therefore Figure 2 The relevant explanations and instructions in the system for extending mobile terminal communication also apply to Figure 5 The positioning method for the mobile terminal auxiliary device shown will not be described in detail here.

[0112] Figure 6 This is a structural diagram of a positioning device for a mobile terminal auxiliary device according to an embodiment of this application, such as... Figure 6 As shown, the device includes:

[0113] The acquisition module 602 is used for auxiliary equipment connected to the terminal device to acquire the first navigation signal sent by the satellite navigation system;

[0114] The transmitting module 604 is used to transmit the first navigation signal to the terminal device;

[0115] The receiving module 606 is used to receive correction information returned by the terminal device. The correction information is the information obtained by the terminal device sending the first navigation signal to the differential server to calculate the differential correction number. The differential correction number calculation is used to determine the error between the first navigation signal received by the auxiliary device and the second navigation signal received by the reference station of the satellite navigation system.

[0116] The determination module 608 is used to perform positioning calculations using correction information to obtain the location information of the terminal device.

[0117] It should be noted that, Figure 6 The positioning device of the mobile terminal auxiliary device shown is used to perform Figure 5 The positioning method of the mobile terminal auxiliary device shown, therefore Figure 5 The relevant explanations in the positioning method of mobile terminal auxiliary devices also apply to Figure 6 The positioning device of the mobile terminal auxiliary device shown will not be described in detail here.

[0118] This application also provides an electronic device, which includes a memory and a processor. The memory is used to store program instructions, and the processor is connected to the memory to execute steps that implement the positioning method of the mobile terminal auxiliary device in various embodiments of this application.

[0119] This application also provides a non-volatile storage medium including a stored computer program, wherein the device containing the non-volatile storage medium executes the steps of the positioning method of the mobile terminal auxiliary device in various embodiments of this application by running the computer program.

[0120] This application also provides a computer program product, including computer instructions, which, when executed by a processor, implement the steps of the positioning method for a mobile terminal auxiliary device in various embodiments of this application.

[0121] This application also provides a computer program that, when executed by a processor, implements the steps of the positioning method for mobile terminal auxiliary devices in various embodiments of this application.

[0122] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0123] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0124] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0125] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0126] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0127] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0128] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A system for extending mobile terminal communication, characterized in that, include: Terminal equipment; and, An auxiliary device, wherein the auxiliary device is connected to the terminal device, and the auxiliary device includes a positioning module; The positioning module is used to receive navigation signals sent by the satellite navigation system and send the navigation signals to the terminal device through the auxiliary device. After receiving the correction information returned by the terminal device, the positioning module uses the correction information to perform positioning calculation to obtain the position information of the terminal device. The correction information is information obtained by the terminal device sending the navigation signals to the differential server to calculate the differential correction number. The differential correction number calculation is used to determine the error between the first navigation signal received by the auxiliary device and the second navigation signal received by the reference station of the satellite navigation system.

2. The system according to claim 1, characterized in that, The auxiliary device also includes a scanning module, which is used to send radio frequency signals to the target area where the electronic tag is located. After receiving the return signal of the electronic tag corresponding to the radio frequency signal, the module decodes the return signal to obtain tag information and sends the tag information to the terminal device.

3. The system according to claim 1, characterized in that, The system further includes the differential server, which is used to receive a first navigation signal sent by the mobile terminal and a second navigation signal from the reference station of the satellite navigation system, wherein the first navigation signal includes a signal received by the receiver chip in the positioning module; and to calculate the differential correction number on the first navigation signal and the second navigation signal to obtain the correction information.

4. The system according to claim 1, characterized in that, The auxiliary device also includes a microcontroller unit, wherein the microcontroller unit is connected to the positioning module; The microcontroller unit is configured to encode verification information into the navigation signal after receiving the navigation signal sent by the positioning module to obtain a target navigation signal, wherein the verification information is used to detect data errors generated when the navigation signal is transmitted from the positioning module to the differential server; and to send the target navigation signal to the terminal device.

5. The system according to claim 4, characterized in that, The microcontroller unit is further configured to encrypt the target navigation signal with a first key before sending the target navigation signal to the terminal device to obtain a first encrypted navigation signal, wherein the first key includes a symmetric key pre-stored in the microcontroller unit; obtain a second key from the differential server, wherein the second key includes a public key provided by the differential server; and encrypt the first key in the first encrypted navigation signal with the second key to obtain a second encrypted navigation signal.

6. The system according to claim 2, characterized in that, The scanning module includes a radio frequency (RF) module, which is connected to a microcontroller unit in the auxiliary device. The scanning module is used to obtain a target frequency point from the microcontroller unit, wherein the target frequency point includes a preset frequency point in the microcontroller unit for communicating with the electronic tag; determine the RF signal corresponding to the target frequency point, and send the RF signal to the target area where the electronic tag is located through the auxiliary device.

7. The system according to claim 6, characterized in that, The scanning module includes a ceramic antenna, which is used to transmit the radio frequency signal to the target area where the electronic tag is located. The ceramic antenna is an antenna made of a ceramic substrate with a dielectric constant that meets a preset threshold.

8. The system according to claim 7, characterized in that, The ceramic antenna includes a first feed point and a second feed point, wherein the first feed point is disposed on a first axis and the second feed point is disposed on a second axis. The first axis and the second axis are perpendicular to each other, and the first distance between the first feed point and the radiation center of the ceramic antenna and the second distance between the second feed point and the radiation center are equal.

9. The system according to claim 8, characterized in that, The ceramic antenna receives a first signal from the first feed point and a second signal from the second feed point with equal power, and the phase difference between the first signal and the second signal is 90°.

10. The system according to claim 7, characterized in that, The radiator of the ceramic antenna is an F-shaped stub bending structure, and the grounding plane of the ceramic antenna is an L-shaped grounding structure. The F-shaped stub bending structure consists of a central radiating arm and multiple side branches, each of which is bent. The L-shaped grounding structure consists of two perpendicular and intersecting grounding planes.

11. A positioning method for a mobile terminal auxiliary device, characterized in that, include: Auxiliary equipment connected to the terminal device acquires the first navigation signal sent by the satellite navigation system; The first navigation signal is sent to the terminal device; The terminal device receives correction information, wherein the correction information is information obtained by the terminal device sending the first navigation signal to the differential server for differential correction calculation, and the differential correction calculation is used to determine the error between the first navigation signal received by the auxiliary device and the second navigation signal received by the reference station of the satellite navigation system. The location information of the terminal device is obtained by performing a positioning calculation using the corrected information.

12. A positioning device for a mobile terminal auxiliary device, characterized in that, include: The acquisition module is used by auxiliary equipment connected to the terminal device to acquire the first navigation signal sent by the satellite navigation system; The transmitting module is used to transmit the first navigation signal to the terminal device; The receiving module is used to receive correction information returned by the terminal device, wherein the correction information is information obtained by the terminal device sending the first navigation signal to the differential server for differential correction calculation, and the differential correction calculation is used to determine the error between the first navigation signal received by the auxiliary device and the second navigation signal received by the reference station of the satellite navigation system; The determination module is used to perform positioning calculations using the correction information to obtain the location information of the terminal device.

13. An electronic device, characterized in that, include: A memory and a processor, wherein the memory is used to store program instructions; the processor is connected to the memory and is used to execute the positioning method of the mobile terminal auxiliary device according to claim 11.

14. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored computer program, wherein the device containing the non-volatile storage medium executes the positioning method of the mobile terminal auxiliary device according to claim 11 by running the computer program.

15. A computer program product comprising computer instructions, characterized in that, When the computer instructions are executed by the processor, they implement the positioning method of the mobile terminal auxiliary device as described in claim 11.

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