Beidou high-precision positioning device with edge computing function

Abstract

The utility model belongs to satellite navigation technical field, concretely relates to a big dipper high accuracy positioning equipment with edge computing function, including base station unit and at least one mobile unit, base station unit is designed as highly integrated hardware equipment, has integrated big dipper high accuracy receiver in the inside and embedded edge computing platform, makes it can independently complete RTK resolution in real time locally, and generates difference correction data, mobile unit sends the difference correction data calculated to base station unit through its built-in 4G communication module, and base station unit can calculate the high accuracy position of each mobile unit in combination with own GNSS observation information. The utility model has reduced the use cost and threshold of user significantly, and highly integrated and general portable base station design has greatly improved the easy use and deployment flexibility, is especially applicable to personal measurement, small -scale engineering lofting, precision agriculture plot management, unmanned plane auxiliary positioning and other small -scale, high cost performance high accuracy positioning application scene.

Description

Technical Field

[0001] This utility model belongs to the field of satellite navigation technology, specifically relating to a BeiDou high-precision positioning device with edge computing function. Background Technology

[0002] High-precision satellite positioning technology, especially real-time dynamic differential (RTK) technology with millimeter-level accuracy, has broad application potential in multiple fields. To achieve high-precision BeiDou RTK positioning, current mainstream technologies rely on a centralized processing architecture: after base station units collect data, it needs to transmit it via network to a remote server for processing, and the server then sends the differential results to the user terminal.

[0003] This model presents significant barriers to adoption for individual and small-scale applications (such as small-scale surveying, farmland management, and personal projects), primarily in the following aspects: First, high cost, requiring users to bear the cost of dedicated servers or continuous commercial network services; second, complex operation, with equipment parameter configuration, network management, and professional operation requirements that are not user-friendly for non-professionals; and third, low equipment integration and poor portability, failing to meet the needs of individual and small-scale applications for lightweight and rapid deployment. These factors collectively constitute the main obstacles to the widespread adoption of high-precision positioning technology among individual and small-scale users, highlighting the market's urgent need for low-cost, easy-to-use, highly integrated, and independently operable solutions.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a BeiDou high-precision positioning device with edge computing capabilities to solve the problems of low integration and difficult deployment of existing high-precision positioning devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A BeiDou high-precision positioning device with edge computing capabilities includes a base station unit and at least one mobile unit; wherein the base station unit is designed as a highly integrated hardware device, the hardware device comprising: The first high-precision positioning module is used to receive navigation satellite signals, obtain real-time reference observation data of the location of the base station unit, and perform differential calculation with each mobile unit; The edge computing platform includes an embedded processor and necessary memory, and is integrated with the first high-precision positioning module in the same hardware unit. It acquires the original observation data of the mobile unit input by the first communication module and the reference observation data acquired by the first high-precision positioning module for differential calculation. The display control module is electrically connected to the edge computing platform; The first communication module is communicatively connected to the mobile unit and is used to receive data sent by the mobile unit and send the results processed by the edge computing platform. The first power management module is used to supply power to the base station unit and manage its power status.

[0007] Preferably, the mobile unit includes: a second high-precision positioning module and a second communication module; the second high-precision positioning module is used to collect real-time raw satellite observation data of the mobile unit, and transmit the raw observation data to the first communication module of the base station unit in real time or near real time through the second communication module.

[0008] Preferably, the edge computing platform receives and processes the raw observation data received by the first communication module in real time, and combines it with the reference observation data obtained by the first high-precision positioning module to run RTK or similar high-precision differential positioning algorithms independently and in real time on the local base station unit to directly calculate the centimeter-level high-precision position coordinate information of the mobile unit.

[0009] Preferably, the first communication module sends the high-precision location coordinate information calculated by the edge computing platform back to the corresponding mobile unit, which is received by the second communication module, or sent to other monitoring terminals or applications specified by the user according to the settings.

[0010] Preferably, the first high-precision positioning module and the second high-precision positioning module have the same structure, both including: a GNSS antenna interface, a data interface, a bidirectional Zener diode, an RF amplifier, an isolation module, a grounding via matrix, and a signal processing circuit design module; the GNSS antenna interface is connected in parallel with the bidirectional Zener diode and a π-type filter to the RF amplifier, amplifying the received signal before it is connected to the signal processing circuit design module, which processes the signal into a readable data format through the MCU and stores the backup data in ROM; the data interface provides an interface for the output data of the signal processing circuit design module, and can be used as a debugging interface and to connect to the next-level processor port; the isolation module serves as a digital-to-analog isolation device for the RF front end, reducing the impact of analog signal source changes on the RF front end and reducing coupling effects; the grounding via matrix is ​​placed in areas with dense signals to reduce the impact of hardware current noise on high-frequency signals.

[0011] Preferably, the first high-precision positioning module and the functional circuit of the edge computing platform are integrated on the same circuit board to maximize hardware integration, reduce the physical size of the device, reduce internal connection complexity, and optimize power consumption.

[0012] Preferably, the first communication module and the second communication module adopt 4G / 5G mobile communication, allowing users to flexibly select or configure them according to the working distance, regional network coverage, power consumption requirements and cost budget, so as to ensure a reliable data transmission link between the base station and the mobile unit.

[0013] Preferably, the first power management module is equipped with an interface that supports multiple convenient power supply methods, such as a built-in rechargeable high-capacity lithium battery.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The Beidou high-precision positioning device with edge computing function of this utility model adopts a master-slave structure of base station unit and mobile unit. The base station unit integrates Beidou high-precision receiver and embedded edge computing platform, enabling it to independently complete RTK calculation locally in real time and generate differential correction data.

[0015] (2) The Beidou high-precision positioning device with edge computing function of this utility model allows the mobile unit to send the calculated differential correction data to the base station unit through its built-in 4G communication module. The base station unit can calculate the high-precision position of each mobile unit by combining its own GNSS observation information. This solves the shortcomings of existing RTK devices that rely on the central server for calculation and provides an efficient, lightweight, and miniaturized high-precision positioning device.

[0016] (3) The Beidou high-precision positioning device with edge computing function of this utility model greatly improves ease of use and deployment flexibility through integrated hardware edge computing and highly integrated and usually portable base station design. It is particularly suitable for small-scale, cost-effective high-precision positioning application scenarios such as personal measurement, small-scale engineering layout, precision agricultural plot management, and UAV-assisted positioning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the BeiDou high-precision positioning device with edge computing function according to this utility model; Figure 2 This is a schematic diagram of the hardware structure of the mobile unit of this utility model; Figure 3 This is a schematic diagram of the hardware structure of the first high-precision positioning module and the second high-precision positioning module of this utility model; Explanation of key figure labels: 1. First 4G antenna; 2. First GNSS antenna; 3. First filter; 4. Second filter; 5. First 4G module; 6. Embedded Linux platform; 7. First high-precision positioning module; 8. Memory; 9. Display control module; 10. First power management module; 11. External data interface; 12. Second 4G antenna; 13. Second GNSS antenna; 14. Third filter; 15. Fourth filter; 16. Second 4G module; 17. Processor; 18. Second high-precision positioning module; 19. Second power management module; 20. Battery pack; 21. GNSS antenna interface; 22. Data interface; 23. Bidirectional Zener diode; 24. RF amplifier; 25. Isolation module; 26. Grounding via matrix; 27. Signal processing circuit design module. Detailed Implementation

[0018] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] See attached document Figure 1 A BeiDou high-precision positioning device with edge computing capabilities includes a base station unit and at least one mobile unit. The base station unit is designed as a highly integrated hardware device, which includes: a first 4G antenna 1, a first GNSS antenna 2, a first filter 3, a second filter 4, a first 4G module 5, an embedded Linux platform 6, a first high-precision positioning module 7, a memory 8, a display control module 9, a first power management module 10, and an external data interface 11.

[0022] The embedded Linux platform 6 serves as an edge computing platform, connecting to the first 4G module 5, the first high-precision positioning module 7, and the display control module 9 to perform data processing and device control, storing processed data and backup data in the memory 8.

[0023] The first GNSS antenna 2 is connected to the second filter 4. The second GNSS antenna 2 acquires real-time raw observation data and transmits it to the first high-precision positioning module 7 through the second filter 4. The data is exchanged with the embedded Linux platform 6 and processed in the embedded Linux platform 6.

[0024] The first 4G module 5 serves as the first communication module. The first 4G antenna 1 is connected to the first filter 3. The first 4G antenna 1 receives communication data and transmits it to the first 4G module 5 through the first filter 3 to obtain the communication data. The first 4G module 5 is connected to the embedded Linux platform 6 for wireless data communication with the mobile unit, receiving data sent by the mobile unit and sending the results processed by the embedded Linux platform 6.

[0025] The first power management module 10 supplies power to the base station unit and manages its power status. It has an interface that supports various convenient power supply methods, such as a built-in rechargeable high-capacity lithium battery.

[0026] External data interface 11 serves as a wired short-range transmission interface, enabling it to receive short-range mobile unit data via a wired connection, thereby improving stability. It can also be used to debug base station unit functions, facilitating later operation and maintenance.

[0027] See attached document Figure 2 The mobile unit includes: a second 4G antenna 12, a second GNSS antenna 13, a third filter 14, a fourth filter 15, a second 4G module 16, a processor 17, a second high-precision positioning module 18, a second power management module 19, and a battery pack 20.

[0028] The second GNSS antenna 13 is connected to the fourth filter 15. The second GNSS antenna 13 acquires the real-time satellite raw observation data of the mobile unit, transmits it to the second high-precision positioning module 18 through the fourth filter 15, and then interacts with the processor 17 to process the data into transmittable data. The data is then wirelessly transmitted to the base station unit through the second 4G module 16 of the mobile unit. The second 4G module 16 serves as the second communication module. The second 4G antenna 12 is connected to the third filter 14. The second 4G antenna receives communication data and transmits it to the second 4G module 16 through the third filter 14. The communication data is then interacted with the processor 17 to transmit the real-time satellite raw observation data of the mobile unit to the first 4G module 5 of the base station unit. The second power management module 19 of the mobile unit includes a battery pack 20 and is designed with an interface that supports a variety of convenient power supply methods.

[0029] See attached document Figure 3 The first high-precision positioning module 7 of the base station unit and the second high-precision positioning module 18 of the mobile unit have the same structure, including a GNSS antenna interface 21, a data interface 22, a bidirectional Zener diode 23, an RF amplifier 24, an isolation module 25, a grounding via matrix 26, and a signal processing circuit design module 27.

[0030] The GNSS antenna interface 21 is connected in parallel with the bidirectional Zener diode 23 and the π-type filter to the RF amplifier 24. The received signal is amplified and then connected to the signal processing circuit design module 27. The signal is processed by the MCU into a readable data format and the backup data is stored in the ROM.

[0031] Data interface 22 provides an interface for the output data of signal processing circuit design module 27, which can be used as a debugging interface and connected to the next level processor port.

[0032] The isolation module 25 serves as a digital-to-analog isolation device for the RF front end, used to reduce the impact of changes in the analog signal source on the RF front end and reduce coupling effects.

[0033] By utilizing the principle of shortest path noise discharge, placing a grounding via matrix 26 in areas with dense signals can reduce the impact of hardware current noise on high-frequency signals.

[0034] In this embodiment, the high-precision positioning module motherboard adopts a four-layer structure design, with two layers being the power layer and the ground layer, serving as electrical-ground isolation layers; the peripheral circuits of the power chip use shielded inductors, and the power wiring adopts a filler wiring method to isolate high-frequency and low-voltage lines with power lines.

[0035] This utility model's BeiDou high-precision positioning device with edge computing capabilities significantly reduces user costs and barriers to entry through integrated hardware edge computing. It solves the problems of high cost, complex operation, and inconvenient deployment caused by existing RTK devices relying on central servers for computing. It can meet the needs of individual users and small-scale application scenarios for low-cost, easy-to-use high-precision positioning solutions. The highly integrated and universal portable base station design greatly improves ease of use and deployment flexibility, making it particularly suitable for small-scale, cost-effective, and high-precision positioning applications such as personal surveying, small-scale engineering layout, precision agricultural plot management, and UAV-assisted positioning.

[0036] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A BeiDou high-precision positioning device with edge computing capabilities, characterized in that, It includes a base station unit and at least one mobile unit; wherein the base station unit includes: The first high-precision positioning module is used to receive navigation satellite signals and obtain real-time reference observation data of the location of the base station unit. The edge computing platform, which includes an embedded processor and memory, is integrated with the first high-precision positioning module in the same hardware unit; The display control module is electrically connected to the edge computing platform; The first communication module is communicatively connected to the mobile unit and is used to receive data sent by the mobile unit and send the results processed by the edge computing platform. The first power management module is used to supply power to the base station unit and manage its power status.

2. The BeiDou high-precision positioning device with edge computing function according to claim 1, characterized in that, The mobile unit includes a second high-precision positioning module and a second communication module; the second high-precision positioning module is used to collect real-time raw satellite observation data of the mobile unit, and transmit the raw observation data to the first communication module of the base station unit in real time or near real time through the second communication module.

3. The BeiDou high-precision positioning device with edge computing function according to claim 2, characterized in that, The edge computing platform receives and processes the raw observation data received by the first communication module in real time. At the same time, it combines the reference observation data obtained by the first high-precision positioning module and runs the RTK high-precision differential positioning algorithm locally on the base station unit to directly calculate the centimeter-level high-precision position coordinate information of the mobile unit.

4. The BeiDou high-precision positioning device with edge computing function according to claim 3, characterized in that, The first communication module sends the high-precision location coordinate information calculated by the edge computing platform back to the corresponding mobile unit, which is received by the second communication module, or sent to other monitoring terminals or applications specified by the user according to the settings.

5. The BeiDou high-precision positioning device with edge computing function according to claim 2, characterized in that, The first and second high-precision positioning modules have the same structure, both including: a GNSS antenna interface, a data interface, a bidirectional Zener diode, an RF amplifier, an isolation module, a grounding via matrix, and a signal processing circuit design module. The GNSS antenna interface is connected in parallel with the bidirectional Zener diode and a π-type filter to the RF amplifier, amplifying the received signal before it is fed into the signal processing circuit design module. The signal is processed into a readable data format by the MCU, and the backup data is stored in the ROM. The data interface provides an interface for the output data of the signal processing circuit design module, serving as a debugging interface and a port for connecting to the next-level processor. The isolation module serves as a digital-to-analog isolation device for the RF front end. The grounding via matrix is ​​placed in areas with dense signals.

6. The BeiDou high-precision positioning device with edge computing function according to claim 1, characterized in that, The first high-precision positioning module and the functional circuit of the edge computing platform are integrated on the same circuit board.

7. The BeiDou high-precision positioning device with edge computing function according to claim 2, characterized in that, The first communication module and the second communication module use 4G or 5G mobile communication.

8. The BeiDou high-precision positioning device with edge computing function according to claim 1, characterized in that, The first power management module has an interface that supports multiple convenient power supply methods.

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