Indoor and outdoor communication interconnection module

Abstract

The application discloses an indoor and outdoor navigation interconnection module and belongs to the technical field of satellite navigation and communication integration. In view of the defects of traditional positioning modules, such as indoor and outdoor positioning fragmentation, dependence on self-built infrastructure and poor scene adaptability, an integrated module scheme with 'navigation integration' as the core logic is proposed. A five-layer hierarchical architecture design is adopted, and through the mode innovation of 'end-to-end interconnection and device mutual base station', the whole frequency and system observation value collection, multi-source positioning technology and global communication mode are integrated, the dependence of traditional positioning on fixed infrastructure is broken, and high-precision positioning experience of indoor and outdoor seamless switching is realized. The module cooperates through the whole link of hardware, algorithm, communication and service, and gives consideration to positioning accuracy and scene extensibility, so that an innovative solution is provided for all-quantity indoor and outdoor high-precision positioning scenes, and the navigation interconnection technology is promoted from a prototype to industrial landing.

Description

Technical Field

[0001] This patent relates to the field of Global Navigation Satellite System (GNSS) and communication convergence technology, specifically to an indoor and outdoor communication and navigation interconnection module, which is used to achieve integrated high-precision positioning both indoors and outdoors, applicable to positioning needs in all scenarios, and improves the continuity and reliability of positioning services. Background Technology

[0002] Current indoor and outdoor positioning technologies suffer from a significant disconnect: outdoor positioning relies heavily on technologies like GNSS and RTK, which, while achieving high accuracy, experience substantial performance degradation in indoor environments and urban canyons where signal obstruction is a concern; indoor positioning, on the other hand, depends on self-built infrastructure such as Bluetooth beacons, UWB, and base stations, resulting in high deployment costs, limited coverage, and a lack of seamless integration with outdoor positioning. Traditional positioning modules either focus on a single scenario or achieve indoor / outdoor switching through simple technology aggregation, lacking a core "communication and navigation fusion" design. Furthermore, they generally rely on fixed infrastructure, exhibiting weak generalization capabilities and failing to meet the demands for high-precision positioning across all scenarios.

[0003] Meanwhile, existing modules often suffer from insufficient hardware performance, limited positioning algorithms, and poor communication and positioning coordination, failing to achieve a closed-loop "positioning-communication-service" chain and hindering the commercialization of integrated indoor and outdoor positioning technology. Therefore, there is an urgent need for a high-precision interconnected module with deep communication and navigation integration capabilities, independent of self-built infrastructure, and capable of covering all scenarios, to address the pain points of traditional technologies. Summary of the Invention

[0004] This invention proposes an indoor and outdoor communication and navigation interconnection module. With "communication and navigation integration" as the core logic, it adopts a five-layer hierarchical architecture to achieve a closed-loop capability. Through the innovative "end-to-end interconnection and devices serving as base stations" model, it breaks the dependence of traditional positioning on self-built infrastructure and achieves an integrated high-precision positioning experience both indoors and outdoors.

[0005] I. Core Architecture Design The module adopts a five-layer design consisting of a hardware foundation layer, an embedded operating system layer, a software algorithm layer, a communication service layer, and a business management layer. Each layer works together to build a closed-loop capability of "positioning-communication-service" to ensure the dual needs of high-precision positioning and scenario-based services.

[0006] II. Task Implementation Process Task 1: Building the Hardware Infrastructure Layer Mission objective: To build a high-performance hardware foundation to provide stable underlying support for positioning and communication, and to ensure multi-band signal acquisition and anti-interference capabilities.

[0007] Specific task breakdown: Subtask 1 objective: Deploy a full-frequency, full-system observation acquisition module to support mainstream satellite systems such as BeiDou, GPS, and GLONASS, cover multiple frequency bands, and achieve efficient signal acquisition in complex outdoor environments; Deliverables: Full-frequency signal acquisition module and signal acquisition performance test report.

[0008] Subtask 2 Objective: Lband demodulation and RF baseband anti-interference design, integrating an Lband demodulation unit, employing an adaptive anti-interference algorithm to suppress RF interference, and improving demodulation accuracy in weak signal environments; Deliverables: Lband demodulation module, RF anti-interference test report.

[0009] Subtask 3 Objective: Hardware integration and compatibility debugging, integrating core hardware units such as signal acquisition, demodulation, and communication to ensure that all components work together and meet the requirements of module miniaturization and low power consumption; Deliverables: Hardware integration solution and compatibility test report.

[0010] Task 2: Building the Embedded Operating System Layer Task objective: To build a stable and efficient embedded operating environment and to achieve hardware driver capability encapsulation and upper-layer software adaptation.

[0011] Specific task breakdown: Subtask 1 objective: Build an operating system kernel based on the ARM Linux kernel, optimize kernel trimming and boot speed, and adapt to the module hardware architecture; deliverables: a customized Linux kernel image and a kernel optimization report.

[0012] Subtask 2 Objective: LINUX Driver API encapsulation. This involves encapsulating the signal acquisition, demodulation, and communication units at the hardware infrastructure layer, providing standardized API interfaces, and supporting flexible calls from upper-layer software. Deliverables: Hardware driver package, API interface manual.

[0013] Subtask 3 objective: System stability optimization. Through memory management and task scheduling optimization, ensure the continuous and stable operation of the operating system in complex scenarios and reduce the crash rate. Deliverables: System stability test report and optimization plan document.

[0014] Task 3: Software Algorithm Layer Development Mission objective: To integrate multi-source positioning technology and core algorithms to ensure the accuracy and reliability of integrated indoor and outdoor positioning, and to achieve intelligent switching of positioning modes.

[0015] Specific task breakdown: Subtask 1 Objective: Develop a positioning mode management module that integrates multi-source positioning technologies such as PPPAR, PPPRTK, RTK, and RTK-ASSIST to build an intelligent switching mechanism that automatically selects the optimal positioning mode based on the scenario (indoor / outdoor / signal obstruction). Deliverables: Positioning mode management program and mode switching test report. Specifically, PPPRTK uses the SSR algorithm to achieve satellite-based augmentation positioning, reducing dependence on ground base station density; RTK-ASSIST is used for positioning assistance in weak signal scenarios to improve convergence speed.

[0016] Subtask 2 Objective: Optimize core algorithms, develop random model construction and robust algorithms, confidence algorithms, gross error cycle slip detection algorithms, and ambiguity fixing algorithms to improve positioning accuracy and anti-interference capabilities, and solve the positioning drift problem during indoor-outdoor switching; Deliverables: core algorithm package, algorithm accuracy test report.

[0017] Subtask 3 Objective: Algorithm integration and debugging, integrating the positioning mode management module with the core algorithm to achieve collaborative linkage between the algorithm, hardware, and communication modules; Deliverables: Algorithm integration solution, full-process debugging report.

[0018] Task 4: Construction of the Communication Service Layer Mission objective: To integrate all communication methods to support “communication, navigation and interconnection” and achieve end-to-end interconnection and communication capabilities where devices act as base stations for each other.

[0019] Specific task breakdown: Subtask 1 Objective: Integrate multiple communication methods, including network communication (4G / 5G), satellite communication, and terminal interconnection (Bluetooth, UWB), to build a communication link with full coverage; Deliverables: Communication module integration solution and communication link test report.

[0020] Subtask 2 Objective: Develop an end-to-end interconnection protocol, customize the interconnection protocol, support direct communication between modules, and realize the function of "devices acting as base stations" without relying on fixed infrastructure to complete positioning assistance and data interaction; Deliverables: Interconnection protocol documentation, end-to-end communication program.

[0021] Subtask 3 objective: Optimize communication and positioning coordination to ensure real-time linkage between communication links and positioning algorithms, and guarantee efficient transmission of positioning data and switching commands; deliverables: coordination optimization plan and communication latency test report.

[0022] Task 5: Building the Business Management Layer Mission objective: To build a commercial service system, achieve flexible delivery and business closure of location services, and enhance user experience and commercial value.

[0023] Specific task breakdown: Subtask 1 Objective: Develop a subscription location service module that supports on-demand subscription of location services with different precision and scenarios, and provides flexible billing and access control functions; Deliverables: Subscription service management system, service interface manual.

[0024] Subtask 2 Objective: To develop a revenue model for Tongdao Interconnect, build a revenue system based on module usage and service level, support third-party cooperation and access, and achieve a closed-loop business model; Deliverables: Business model documentation and cooperation access plan.

[0025] Subtask 3 Objective: Optimize user experience, develop service monitoring, fault alarm, and data statistics functions, and provide users with a visual management interface; Deliverables: User management platform, experience optimization report. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the system layered architecture of an indoor / outdoor communication and navigation interconnection module according to the present invention, which includes, from bottom to top: a hardware foundation layer, an embedded operating system layer, a software algorithm layer, a communication service layer, and a service management layer; the hardware foundation layer includes a full-frequency, full-system observation module, an Lband frequency band demodulation module, and a radio frequency baseband anti-interference module; the embedded operating system layer includes an ARM Linux kernel and a LINUX Driver API; the software algorithm layer includes positioning mode management, PPPAR, PPPRTK, RTK, RTK-ASSIST modules, as well as random model construction and robustness, confidence algorithm, gross error cycle slip detection algorithm, and ambiguity fixing algorithm; the communication service layer includes network communication, satellite communication, and terminal interconnection modules; the service management layer includes a subscription positioning service and communication and navigation interconnection revenue module.

Claims

1. An indoor-outdoor communication and interconnection module, characterized in that: With "communication and navigation integration" as its core logic, the module adopts a layered architecture, a specific operating mode, multi-source technology fusion, and high-performance hardware support to achieve integrated high-precision positioning both indoors and outdoors. The module comprises five core components: architecture design, operating mode, positioning technology integration, hardware configuration, and commercial service system. These components work together to form a closed-loop capability of "positioning-communication-service" across the entire chain.

2. The indoor / outdoor communication module according to claim 1, characterized in that: The layered architecture consists of five layers: hardware infrastructure layer, embedded operating system layer, software algorithm layer, communication service layer, and business management layer. Each layer works together to ensure both positioning accuracy and scenario-based services.

3. The indoor / outdoor communication module according to claim 1, characterized in that: The operating mode is "end-to-end interconnection, with devices acting as base stations for each other", integrating three communication methods: network communication (4G / 5G), satellite communication, and terminal interconnection (Bluetooth, UWB). It can complete positioning assistance and data interaction without relying on self-built infrastructure.

4. The indoor / outdoor communication module according to claim 1, characterized in that: The positioning technology is integrated into a multi-source positioning technology that combines PPPAR, PPPRTK, RTK, and RTK-ASSIST, along with a random model robustness algorithm, an ambiguity fixing algorithm, a confidence algorithm, and a gross error cycle slip detection algorithm to achieve intelligent switching of positioning modes.

5. The indoor / outdoor communication module according to claim 1, characterized in that: The hardware configuration includes a full-frequency, full-system signal acquisition module, an Lband demodulation unit, and radio frequency baseband anti-interference technology. It supports mainstream satellite systems such as BeiDou, GPS, and GLONASS and can work stably in environments with weak signals and strong interference.

6. The indoor / outdoor communication module according to claim 1, characterized in that: The commercial service system consists of a subscription-based location service and a communication and navigation interconnection revenue system. It supports on-demand subscription of location services with different levels of accuracy and for different scenarios, and can be integrated with third-party partners to realize the transformation of technical capabilities into commercial value.

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