A method for optimizing positioning trajectory data loss in low power mode

Abstract

This invention discloses a method for optimizing positioning trajectory data loss in low power mode, which is applied to a mobile terminal with single Beidou positioning function. The method includes the following steps: (1) Hardware configuration: The main control module controls the power supply of the Beidou chip and interacts with the Beidou chip through the serial port; the antenna module is configured, the antenna material selection and placement are optimized, a backup power supply is configured for the Beidou module, and the low noise amplification factor of the antenna LAN is increased. This method for optimizing positioning trajectory data loss in low power mode ensures stable power supply of the Beidou chip and sensitive antenna signal reception by optimizing antenna selection and placement, configuring backup power supply, and increasing low noise amplification factor. It reduces positioning failure and data loss caused by weak signal and power interruption, and lays the hardware foundation for continuous trajectory recording.

Description

Technical Field

[0001] This invention relates to the field of mobile terminal positioning-related products, specifically a method for optimizing positioning trajectory data loss in low-power mode. Background Technology

[0002] With the development of IoT technology, mobile terminals with BeiDou positioning capabilities are widely used in various scenarios, especially in outdoor monitoring, asset tracking, and personnel positioning. These terminals often have extremely high requirements for battery life and need to operate in low-power mode for extended periods. However, existing mobile terminals with single BeiDou positioning capabilities generally suffer from data loss and point loss when recording positioning trajectories in low-power mode, which seriously affects positioning accuracy and trajectory integrity, failing to meet practical application needs.

[0003] The main reasons for data loss in positioning trajectories under low-power mode in existing technologies include: First, unreasonable hardware configuration, unstable power supply to the Beidou chip, weak antenna signal reception capability, and lack of backup power, which can easily lead to positioning failure and data loss due to power outages or weak signals; Second, the Beidou chip firmware cannot be flexibly upgraded, making it difficult to adapt to the positioning needs of different scenarios, and firmware vulnerabilities can easily cause positioning anomalies; Third, the AGNSS function is not optimized, and the acquisition of ephemeris data is not timely or stable. In multi-network scenarios, it is impossible to guarantee the normal acquisition of ephemeris data, resulting in long positioning time and low positioning success rate after the Beidou chip is powered on, thus causing trajectory loss; Fourth, the lack of an effective local storage strategy for ephemeris data, and the inability to quickly complete positioning without access to the AGNSS server, resulting in data loss; Fifth, poor coordination between low-power control and trajectory recording, unreasonable terminal wake-up cycle, and untimely power supply control of the Beidou chip, which can easily lead to situations where positioning is not completed before sleep or failure to wake up on time after sleep, causing trajectory interruption.

[0004] Existing optimization solutions mostly focus on improving a single aspect, such as optimizing low-power control or simply improving antenna signal strength. These solutions fail to fundamentally address the issue of data loss in BeiDou positioning, and struggle to balance low-power battery life with trajectory integrity. To address these shortcomings, a comprehensive, multi-faceted, collaborative optimization approach is urgently needed to resolve the data loss problem in BeiDou positioning trajectory under low-power mode, ensuring long terminal battery life while achieving continuous and stable positioning trajectory recording. Summary of the Invention

[0005] The purpose of this invention is to provide a method for optimizing positioning trajectory data loss in low-power mode, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for optimizing positioning trajectory data loss in low-power mode, applied to a mobile terminal with single BeiDou positioning function, comprising the following steps:

[0007] (1) Hardware configuration: The main control module controls the power supply of the Beidou chip and interacts with the Beidou chip through the serial port; the antenna module is configured, the antenna material selection and placement are optimized, a backup power supply is configured for the Beidou module, and the amplification factor of the antenna LAN low noise amplifier is increased;

[0008] (2) Firmware upgrade optimization: Enable the Beidou chip firmware to support OTA upgrade, develop an upgrade protocol on the terminal side, and realize the Beidou chip firmware upgrade through serial port;

[0009] (3) Optimization of AGNSS function and ephemeris management: The terminal supports accessing the AGNSS server, downloading ephemeris data at regular intervals, and feeding ephemeris data to the Beidou chip every time it is powered on; corresponding strategies are adopted for omnidirectional network, directional network and internal private network to ensure ephemeris data acquisition.

[0010] (4) Local storage of ephemeris: The Beidou chip saves the ephemeris data parsed after successful positioning to its own flash memory for use when there is no access to the AGNSS server;

[0011] (5) Low power consumption control and trajectory recording: The terminal wakes up the Beidou chip according to the preset cycle, completes the ephemeris feeding, positioning, and coordinate reporting, then turns off the power supply of the Beidou chip and enters the sleep low power consumption mode, and executes it in a loop to achieve continuous trajectory recording.

[0012] As a preferred embodiment of the present invention, the optimization of the antenna module in step (1) is as follows: when the external antenna is selected for high precision, an external spiral antenna is selected, and when the internal antenna is selected for LDS antenna; the internal antenna is placed on the top of the terminal with sufficient clearance area to avoid obstruction.

[0013] As a preferred embodiment of the present invention, in step (3), the ephemeris data download cycle is 1 hour, and the ephemeris data format is RTCM format; the terminal accesses the AGNSS server via WIFI or ordinary 4G / 5G network, without using a directional IoT card.

[0014] As a preferred embodiment of the present invention, the ephemeris data acquisition strategy in step (3) under multi-network scenarios is specifically as follows:

[0015] Omnidirectional network: Terminals can directly access the AGNSS official server to download ephemeris data;

[0016] Directed network: The terminal accesses the platform server, which acts as a proxy to obtain ephemeris data from the AGNSS official server and then forwards it to the terminal;

[0017] Internal private network: Terminals with access to the external network acquire ephemeris data and transmit it to internal network terminals via serial port physical communication. The internal network terminals then report the ephemeris data to the internal network platform server for other internal network terminals to access.

[0018] As a preferred embodiment of the present invention, in step (4), the Beidou chip only saves the ephemeris data it parses and does not save the ephemeris data sent by the terminal.

[0019] As a preferred embodiment of the present invention, in step (5), the positioning coordinate reporting cycle is 30 seconds to 1 minute, and the terminal immediately shuts off the power supply of the Beidou chip after reporting the coordinates and enters a low-power sleep mode.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This method for optimizing positioning trajectory data loss in low-power mode is achieved by optimizing antenna selection and placement, configuring backup power supply, and increasing the amplification factor of low-noise amplifier. This ensures stable power supply to the Beidou chip and sensitive antenna signal reception, reducing positioning failures and data loss caused by weak signals and power outages, thus laying a hardware foundation for continuous trajectory recording. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] One embodiment of the present invention provides a method for optimizing positioning trajectory data loss in low-power mode, applied to a mobile terminal with single BeiDou positioning function, comprising the following steps:

[0025] (1) Hardware configuration: The main control module controls the power supply of the Beidou chip and interacts with the Beidou chip through the serial port; the antenna module is configured, the antenna material selection and placement are optimized, a backup power supply is configured for the Beidou module, and the amplification factor of the antenna LAN low noise amplifier is increased; through hardware optimization, the power supply of the Beidou chip is stable and the antenna signal reception is sensitive, laying the foundation for positioning stability.

[0026] (2) Firmware upgrade optimization: Enable the Beidou chip firmware to support OTA upgrade, develop an upgrade protocol on the terminal side, and realize the Beidou chip firmware upgrade through serial port; facilitate the subsequent flexible upgrade of firmware and fix of vulnerabilities according to actual application scenarios and positioning needs, improve the positioning performance and compatibility of Beidou chip, and reduce positioning data loss caused by firmware problems.

[0027] (3) Optimization of AGNSS function and ephemeris management: The terminal supports accessing the AGNSS server, downloading ephemeris data at regular intervals, and feeding ephemeris data to the Beidou chip every time it is powered on; corresponding strategies are adopted for omnidirectional network, directional network and internal private network to ensure ephemeris data acquisition; by optimizing AGNSS function and ephemeris management, the positioning time of Beidou chip is shortened, the positioning success rate is improved, and positioning failure and trajectory loss due to missing ephemeris are avoided.

[0028] (4) Local storage of ephemeris: The Beidou chip saves the ephemeris data parsed after successful positioning to its own flash memory for use when there is no access to the AGNSS server; ensuring that the Beidou chip can still quickly obtain ephemeris data and complete positioning even in the event of network abnormality or inability to access the AGNSS server, thus avoiding data loss due to missing ephemeris.

[0029] (5) Low power consumption control and trajectory recording: The terminal wakes up the Beidou chip according to the preset cycle, completes the ephemeris feeding, positioning, and coordinate reporting, and then turns off the power supply of the Beidou chip and enters the low power consumption sleep mode. It executes in a loop to achieve continuous trajectory recording; it achieves the coordination of low power consumption and continuous trajectory recording, avoids positioning interruption due to excessive sleep or excessive power consumption due to continuous power supply, and takes into account both the battery life and the integrity of the trajectory.

[0030] In this embodiment, the optimization of the antenna module in step (1) is as follows: a high-precision time-selective external spiral antenna is selected as the external antenna, and an LDS antenna is selected as the internal antenna; the internal antenna is placed on the top of the terminal with sufficient clearance to avoid obstruction. The high-precision time-selective external spiral antenna has the advantages of high signal reception sensitivity and strong anti-interference ability, which is suitable for the positioning needs of complex outdoor environments; the LDS antenna is small in size and highly integrated, which is suitable for the miniaturized design of the terminal, and the signal transmission is stable; placing the internal antenna on the top of the terminal with sufficient clearance can effectively avoid the internal components of the terminal from blocking the signal, further improve the antenna signal reception capability, and reduce positioning failure and data loss caused by weak signal.

[0031] In this embodiment, in step (3), the ephemeris data download cycle is 1 hour, and the ephemeris data format is RTCM format; the terminal accesses the AGNSS server via WIFI or ordinary 4G / 5G network, without using a directional IoT card. The 1-hour download cycle ensures the timeliness of the ephemeris data, avoiding a decrease in positioning accuracy or positioning failure due to expired ephemeris data; the RTCM format is a standard ephemeris data format with strong compatibility, facilitating the parsing and use of Beidou chips; accessing the AGNSS server via WIFI or ordinary 4G / 5G network eliminates the need for a directional IoT card, reducing terminal usage costs while improving the flexibility and versatility of ephemeris data acquisition, adapting to more application scenarios.

[0032] In this embodiment, the ephemeris data acquisition strategy in step (3) under multi-network scenarios is as follows:

[0033] Omnidirectional Network: Terminals can directly access the AGNSS official server to download ephemeris data; in an omnidirectional network environment, the terminal's network connection is unrestricted, and direct access to the official server can ensure the accuracy and timeliness of ephemeris data, simplify the acquisition process, and improve efficiency.

[0034] Directed network: The terminal accesses the platform server, which acts as a proxy to obtain ephemeris data from the AGNSS official server and then forwards it to the terminal. In a directed network environment, the terminal cannot directly access the external network. Instead, it obtains ephemeris data indirectly through the platform server's proxy, ensuring the normal operation of the positioning function.

[0035] Internal private network: Ephemeris data is obtained by terminals that can access the external network and transmitted to internal network terminals via serial port physical communication. The internal network terminals then report the ephemeris data to the internal network platform server for other internal network terminals to access. In the internal private network environment, the internal network transmission of ephemeris data is achieved through serial port physical communication, which not only ensures the acquisition of ephemeris data but also meets the internal network security management requirements, avoiding the security risks caused by internal network terminals directly connecting to the external network.

[0036] In this embodiment, in step (4), the Beidou chip only saves the ephemeris data it parses, and does not save the ephemeris data sent by the terminal. The ephemeris data it parses itself is more adaptable to the current positioning scenario. Saving only this type of ephemeris data can save the storage space of the Beidou chip's built-in flash, avoid useless data occupying storage resources, and at the same time ensure that the ephemeris data called has high accuracy, improve the positioning success rate, and reduce trajectory data loss.

[0037] In this embodiment, in step (5), the positioning coordinate reporting cycle is 30 seconds to 1 minute. After reporting the coordinates, the terminal immediately shuts off the power supply to the Beidou chip and enters a low-power sleep mode. The 30-second to 1-minute reporting cycle can be flexibly adjusted according to the actual positioning accuracy requirements, ensuring the continuity of trajectory recording while avoiding excessive power consumption due to an excessively short reporting cycle. Immediately shutting off the power supply to the Beidou chip after reporting the coordinates can minimize the terminal's power consumption, extend the battery life, and avoid resource waste and positioning anomalies caused by the Beidou chip being idle, thus balancing low power consumption and trajectory integrity.

[0038] In this embodiment, in step (1), the backup power supply uses a rechargeable lithium battery with a capacity that matches the power consumption requirements of the Beidou chip, ensuring that it can provide emergency power supply for the Beidou chip for at least 1 hour when the main power supply is interrupted, thus avoiding positioning interruption and data loss due to main power supply failure; the antenna LAN low noise amplifier amplification factor is increased to 20dB, further enhancing the strength of the antenna receiving signal and improving the positioning success rate in weak signal environments.

[0039] In this embodiment, in step (2), the upgrade protocol developed on the terminal side supports the function of resuming interrupted transmission, which avoids upgrade failure due to network interruption or power supply abnormality during the upgrade process, and ensures the stability and integrity of the Beidou chip firmware upgrade; OTA upgrade supports remote operation, and firmware upgrade can be completed without disassembling the terminal, which improves the convenience of upgrade and reduces maintenance costs.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A method for optimizing positioning trajectory data loss in low-power mode, applied to a mobile terminal with single BeiDou positioning function, characterized in that, Includes the following steps: (1) Hardware configuration: The main control module controls the power supply of the Beidou chip and interacts with the Beidou chip through the serial port; the antenna module is configured, the antenna material selection and placement are optimized, a backup power supply is configured for the Beidou module, and the amplification factor of the antenna LAN low noise amplifier is increased; (2) Firmware upgrade optimization: Enable the Beidou chip firmware to support OTA upgrade, develop an upgrade protocol on the terminal side, and realize the Beidou chip firmware upgrade through serial port; (3) Optimization of AGNSS function and ephemeris management: The terminal supports accessing the AGNSS server, downloading ephemeris data at regular intervals, and feeding ephemeris data to the Beidou chip every time it is powered on; corresponding strategies are adopted for omnidirectional network, directional network and internal private network to ensure ephemeris data acquisition. (4) Local storage of ephemeris: The Beidou chip saves the ephemeris data parsed after successful positioning to its own flash memory for use when there is no access to the AGNSS server; (5) Low power consumption control and trajectory recording: The terminal wakes up the Beidou chip according to the preset cycle, completes the ephemeris feeding, positioning, and coordinate reporting, then turns off the power supply of the Beidou chip and enters the sleep low power consumption mode, and executes it in a loop to achieve continuous trajectory recording.

2. The method according to claim 1, characterized in that, In step (1), the optimization of the antenna module is as follows: when using a high-precision external antenna, an external spiral antenna is selected, and when using an internal antenna, an LDS antenna is selected; the internal antenna is placed on the top of the terminal, with sufficient clearance area reserved to avoid obstruction.

3. The method according to claim 1, characterized in that, In step (3), the ephemeris data download cycle is 1 hour, and the ephemeris data format is RTCM format; the terminal accesses the AGNSS server via WIFI or ordinary 4G / 5G network, without using a directional IoT card.

4. The method according to claim 1, characterized in that, In step (3), the ephemeris data acquisition strategy in multi-network scenarios is as follows: Omnidirectional network: Terminals can directly access the AGNSS official server to download ephemeris data; Directed network: The terminal accesses the platform server, which acts as a proxy to obtain ephemeris data from the AGNSS official server and then forwards it to the terminal; Internal private network: Terminals with access to the external network acquire ephemeris data and transmit it to internal network terminals via serial port physical communication. The internal network terminals then report the ephemeris data to the internal network platform server for other internal network terminals to access.

5. The method according to claim 1, characterized in that, In step (4), the Beidou chip only saves the ephemeris data it parses and does not save the ephemeris data sent by the terminal.

6. The method according to claim 1, characterized in that, In step (5), the positioning coordinate reporting cycle is 30 seconds to 1 minute. After reporting the coordinates, the terminal immediately shuts off the power supply to the Beidou chip and enters a low-power sleep mode.