Built-in single Beidou and short message module of mobile terminal

Abstract

The utility model discloses a built-in single Beidou and short message module of a mobile terminal, which comprises a mobile terminal main body, a single Beidou navigation module, a short message communication module, a main control module and a power supply module are integrated in the main body, and the single Beidou navigation module is connected with the main control module through an SPI (Serial Peripheral Interface) bus. A radio frequency front end and a short message communication module share a multi-band composite antenna, a Beidou RDSS receiving and transmitting chip is arranged in the short message communication module, a two-way communication link is established between the short message communication module and a main control module through a UART interface, and a power supply module adopts an adjustable step-down circuit and provides dynamic voltage matching power supply for a navigation module and a communication module respectively. The multi-band composite antenna comprises an L-band radiator and an S-band spiral structure, the L-band radiator and the S-band spiral structure are arranged in a three-dimensional orthogonal mode through a dielectric substrate, and an S-band coupling groove is formed in the surface of the L-band radiator. According to the utility model, efficient cooperation of Beidou navigation and short message communication is realized, and the size and power consumption of equipment are reduced at the same time.

Description

Technical Field

[0001] This utility model belongs to the field of mobile terminal technology, and in particular relates to a mobile terminal with a built-in single Beidou and short message module. Background Technology

[0002] Existing BeiDou terminal equipment mostly adopts external antennas or discrete module designs, which have the following problems: large size and high power consumption. Traditional terminals require independent configuration of navigation modules and short message modules, resulting in large device size and high power consumption; strong signal interference, with built-in antennas susceptible to electromagnetic interference, affecting communication stability; limited functionality: most devices only support short message or positioning functions, lacking deep integration. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model proposes a mobile terminal with a built-in single BeiDou and short message module. Through a multi-band composite antenna, dynamic voltage power supply, and protocol conversion unit, it achieves efficient coordination between BeiDou navigation and short message communication, while reducing device size and power consumption.

[0004] This utility model achieves the above objectives through the following technical solution: it includes a mobile terminal body, wherein the mobile terminal body integrates a single Beidou navigation module, a short message communication module, a main control module, and a power supply module;

[0005] The single Beidou navigation module is connected to the main control module via an SPI bus, and its radio frequency front-end shares a multi-band composite antenna with the short message communication module.

[0006] The short message communication module has a built-in Beidou RDSS transceiver chip and establishes a two-way communication link with the main control module through the UART interface;

[0007] The power supply module uses an adjustable step-down circuit to provide dynamic voltage matching power to the navigation module and the communication module respectively.

[0008] Furthermore, the multi-band composite antenna includes an L-band radiator and an S-band helical structure, which are arranged in a three-dimensional orthogonal configuration through a dielectric substrate. An S-band coupling groove is formed on the surface of the L-band radiator.

[0009] Furthermore, the main control module integrates a protocol conversion unit, which includes:

[0010] The navigation data parsing subunit is used to extract positioning information from the BeiDou B1I signal;

[0011] The message compression coding subunit uses the LZ77Huffman hybrid algorithm to achieve short message compression.

[0012] The frequency division multiplexing controller coordinates the frequency band switching timing between the navigation module and the communication module.

[0013] Furthermore, the power supply module includes:

[0014] A dynamic power consumption monitoring unit collects the operating current of the navigation module and the communication module in real time.

[0015] The adaptive voltage regulation unit dynamically adjusts the output voltage within the range of 2.8V to 3.6V based on monitoring data;

[0016] The energy storage capacitor array consists of three sets of 100μF tantalum capacitors connected in parallel to form a transient response circuit.

[0017] Furthermore, the outer shell of the mobile terminal body adopts a composite structure of an electromagnetic shielding magnesium alloy frame and a dielectric ceramic panel, and the dielectric ceramic panel is provided with a wave-transmitting area corresponding to the multi-band composite antenna.

[0018] Furthermore, the main control module is connected to an environmental sensor group, including a temperature sensor, a barometric pressure sensor, and a geomagnetic sensor. Data from each sensor is packaged and sent through the burst transmission mode of the short message communication module.

[0019] Furthermore, the short message communication module is equipped with a dual-buffer architecture, including:

[0020] The first SRAM buffer stores the data of the message to be sent.

[0021] The second FRAM buffer stores received messages and communication logs;

[0022] The cache switching controller performs a ping-pong operation based on the DMA instructions from the main control module.

[0023] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:

[0024] 1. In this utility model, the composite antenna and dynamic power supply technology reduce the size of the device and reduce power consumption. The multi-band antenna design improves signal reception sensitivity and increases the success rate of message transmission.

[0025] 2. In this utility model solution, the protocol conversion unit achieves seamless integration of navigation data and communication protocol, breaking through the traditional architecture of separating positioning and communication services in the Beidou system;

[0026] 3. In this utility model, the dual-buffer architecture combined with the burst transmission mode effectively improves the transmission success rate of short messages in complex environments, demonstrating verifiable technological advancements. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall system of this utility model;

[0028] Figure 2This is a schematic diagram of the main control module system of this utility model;

[0029] Figure 3 This is a schematic diagram of the short message communication module system of this utility model;

[0030] Figure 4 This is a schematic diagram of the power supply module system of this utility model. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Combination Figures 1 to 4 The mobile terminal shown has a built-in single Beidou and short message module, including a mobile terminal body, which integrates a single Beidou navigation module, a short message communication module, a main control module and a power supply module.

[0033] The single Beidou navigation module is connected to the main control module via the SPI bus, and its radio frequency front-end shares a multi-band composite antenna with the short message communication module.

[0034] The short message communication module has a built-in Beidou RDSS transceiver chip and establishes a two-way communication link with the main control module through the UART interface;

[0035] The power supply module uses an adjustable step-down circuit to provide dynamic voltage matching power to the navigation module and the communication module respectively.

[0036] The multi-band composite antenna includes an L-band radiator and an S-band helical structure, which are arranged in a three-dimensional orthogonal configuration through a dielectric substrate. An S-band coupling slot is formed on the surface of the L-band radiator.

[0037] The main control module integrates a protocol conversion unit, which includes:

[0038] The navigation data parsing subunit is used to extract positioning information from the BeiDou B1I signal;

[0039] The message compression coding subunit uses the LZ77Huffman hybrid algorithm to achieve short message compression.

[0040] The frequency division multiplexing controller coordinates the frequency band switching timing between the navigation module and the communication module.

[0041] The power supply module includes:

[0042] A dynamic power consumption monitoring unit collects the operating current of the navigation module and the communication module in real time.

[0043] The adaptive voltage regulation unit dynamically adjusts the output voltage within the range of 2.8V to 3.6V based on monitoring data;

[0044] The energy storage capacitor array consists of three sets of 100μF tantalum capacitors connected in parallel to form a transient response circuit.

[0045] The outer shell of the mobile terminal adopts a composite structure of an electromagnetic shielded magnesium alloy frame and a dielectric ceramic panel. The dielectric ceramic panel has a wave-transparent area corresponding to the multi-band composite antenna.

[0046] The main control module is connected to an environmental sensor group, including a temperature sensor, a barometric pressure sensor, and a geomagnetic sensor. Data from each sensor is packaged and sent through the burst transmission mode of the short message communication module.

[0047] The short message communication module features a dual-buffer architecture, including:

[0048] The first SRAM buffer stores the data of the message to be sent.

[0049] The second FRAM buffer stores received messages and communication logs;

[0050] The cache switching controller performs a ping-pong operation based on the DMA instructions from the main control module.

[0051] Working principle: During the use of this utility model:

[0052] Antenna implementation: The L-band radiator adopts a microstrip patch design, and the S-band spiral structure is embedded in the dielectric substrate, with frequency band isolation achieved through coupling slots;

[0053] Power supply control: The dynamic power consumption monitoring unit collects the current in real time, and the voltage regulation unit adjusts the output voltage in 0.1V steps;

[0054] Data transmission: The short message module adopts a dual-buffer architecture and combines DMA instructions to implement ping-pong operation to ensure communication continuity;

[0055] Taking emergency rescue scenarios as an example: the terminal coordinates navigation and communication timing through a frequency division multiplexing controller. While sending positioning data, it transmits compressed environmental sensor data in bursts via short messages, with a single communication delay of less than 500ms.

[0056] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this 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 this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mobile terminal built-in single Beidou and short message module, comprising a mobile terminal main body, characterized in that: The mobile terminal integrates a single Beidou navigation module, a short message communication module, a main control module, and a power supply module. The single Beidou navigation module is connected to the main control module via an SPI bus, and its radio frequency front-end shares a multi-band composite antenna with the short message communication module. The short message communication module has a built-in Beidou RDSS transceiver chip and establishes a two-way communication link with the main control module through the UART interface; The power supply module uses an adjustable step-down circuit to provide dynamic voltage matching power to the navigation module and the communication module respectively.

2. The mobile terminal with built-in single Beidou and short message module according to claim 1, characterized in that: The multi-band composite antenna includes an L-band radiator and an S-band helical structure, which are arranged in a three-dimensional orthogonal configuration through a dielectric substrate. An S-band coupling slot is formed on the surface of the L-band radiator.

3. The mobile terminal built-in single-beidou and short message module according to claim 2, characterized in that: The main control module integrates a protocol conversion unit, which includes: The navigation data parsing subunit is used to extract positioning information from the BeiDou B1I signal; The message compression coding subunit uses the LZ77Huffman hybrid algorithm to achieve short message compression. The frequency division multiplexing controller coordinates the frequency band switching timing between the navigation module and the communication module.

4. The mobile terminal built-in single Beidou and short message module according to claim 3, characterized in that: The power supply module includes: A dynamic power consumption monitoring unit collects the operating current of the navigation module and the communication module in real time. The adaptive voltage regulation unit dynamically adjusts the output voltage within the range of 2.8V to 3.6V based on monitoring data; The energy storage capacitor array consists of three sets of 100μF tantalum capacitors connected in parallel to form a transient response circuit.

5. The mobile terminal built-in single-beidou and short message module according to claim 1, characterized in that: The outer shell of the mobile terminal body adopts a composite structure of an electromagnetic shielding magnesium alloy frame and a dielectric ceramic panel. The dielectric ceramic panel is provided with a wave-transmitting area corresponding to the multi-band composite antenna.

6. The mobile terminal built-in single-beidou and short message module according to claim 1, characterized in that: The main control module is connected to an environmental sensor group, including a temperature sensor, a barometric pressure sensor, and a geomagnetic sensor. Data from each sensor is packaged and sent through the burst transmission mode of the short message communication module.

7. A mobile terminal with a built-in single Beidou and short message module according to claim 6, characterized in that: The short message communication module has a dual-buffer architecture, including: The first SRAM buffer stores the data of the message to be sent. The second FRAM buffer stores received messages and communication logs; The cache switching controller performs a ping-pong operation based on the DMA instructions from the main control module.

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