A portable satellite terminal

Abstract

The utility model provides a portable satellite terminal, which relates to the technical field of satellite terminals, and includes: a power module, a Tiantong module, a WIFI module, and an application processing module; the power module is electrically connected to the Tiantong module, the WIFI module, and the application processing module, respectively, the Tiantong module is connected to the application processing module, and the application processing module is also connected to the WIFI module. The utility model can provide Tiantong satellite communication service capabilities for ordinary intelligent communication terminals.

Description

Technical Field

[0001] The utility model relates to the technical field of satellite terminals, in particular to a portable satellite terminal. Background Art

[0002] In the mobile satellite communication system, the user segment needs to access the mobile satellite communication network through the ground segment for mobile communication. The communication terminal representing the user segment can have different forms, such as handheld terminals or vehicle-mounted terminals. The user terminal is installed with a wireless transceiver antenna to enable the terminal user to set and obtain the communication status and complete the communication. For mobile satellite communication networks with different frequency bands, one of the manifestations is that the user terminals use different frequencies. User terminals that use different frequency bands for communication have different communication functions and design methods.

[0003] Tiantong satellite calls must use Tiantong satellite terminals, which are large in size, inconvenient to carry and expensive to manufacture. How to provide a portable ordinary intelligent communication terminal in the prior art to realize Tiantong satellite communication and reduce costs is a key issue in this field that needs to be resolved. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a portable satellite terminal.

[0005] The utility model provides a portable satellite terminal, comprising: a power module, a Tiantong module, a WIFI module, and an application processing module;

[0006] The power supply module is electrically connected to the Tiantong module, the WIFI module and the application processing module respectively. The Tiantong module is connected to the application processing module, and the application processing module is also connected to the WIFI module.

[0007] Preferably, the power module comprises: a power EMI filter circuit and a buck chip; the power EMI filter circuit is connected to the buck chip.

[0008] Preferably, the Tiantong module comprises: a Tiantong antenna, a Tiantong receiving circuit, a Tiantong transmitting circuit and a Tiantong baseband chip;

[0009] The Tiantong antenna is connected to the Tiantong receiving circuit and the Tiantong transmitting circuit respectively, and the Tiantong receiving circuit and the Tiantong transmitting circuit are both connected to the Tiantong baseband chip.

[0010] Preferably, the Tiantong antenna comprises: an antenna receiving S-band quadrifilar helical antenna, an antenna transmitting L-band quadrifilar helical antenna, a duplexer and an SMA radio frequency connector;

[0011] The antenna receiving S-band four-arm helical antenna and the antenna transmitting L-band four-arm helical antenna are both connected to the duplexer, and the duplexer is connected to the SMA radio frequency connector.

[0012] Preferably, the antenna receives an S-band four-arm helical antenna with an operating frequency of 2170-2200 MHz, an antenna axial ratio of ≤3.0 dB, and an output standing wave of ≤2.0.

[0013] Preferably, the antenna transmits an L-band four-arm helical antenna with an operating frequency of 1980-2010 MHz, an antenna axial ratio ≤3.0 dB, and an output standing wave ≤2.0.

[0014] Preferably, the receiving end frequency band of the duplexer is: 2170-2200 MHz, the transmitting end frequency band is: 1980-2010 MHz, and the common end frequency band is: 1980-2200 MHz.

[0015] Preferably, the WIFI module includes: a WIFI antenna, a WIFI receiving circuit, a WIFI transmitting circuit and a WIFI baseband processing chip;

[0016] The WIFI antenna is connected to the WIFI receiving circuit and the WIFI transmitting circuit respectively, and the WIFI receiving circuit and the WIFI transmitting circuit are both connected to the WIFI baseband processing chip.

[0017] Preferably, the frequency band for receiving and transmitting WIFI signals by the WIFI antenna is 2.4 GHz to 2.4835 GHz, the antenna efficiency is 50%, and the standing wave ratio is ≤2.0.

[0018] Preferably, the application processing module comprises: a video processor, an application processor and an audio processor; the video processor and the application processor are bidirectionally connected to each other, and the application processor and the audio processor are bidirectionally connected to each other.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model can provide Tiantong satellite communication service capabilities for ordinary intelligent communication terminals, realizes Tiantong satellite communication of portable ordinary communication terminals, keeps efficient connection with Tiantong satellite at all times, is easy to use and has low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is the overall block diagram of the utility model;

[0023] Figure 2This is a schematic diagram of the power module;

[0024] Figure 3 This is a schematic diagram of the Tiantong module;

[0025] Figure 4 This is a schematic diagram of the Tiantong antenna;

[0026] Figure 5 This is a schematic diagram of the WiFi module;

[0027] Figure 6 It is a data interaction diagram between a common intelligent communication terminal and a portable satellite terminal;

[0028] Figure 7 A schematic diagram of the application processing module. DETAILED DESCRIPTION

[0029] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0030] The utility model provides a portable satellite terminal, which is a device that provides satellite communication channels for ordinary intelligent communication terminals. Ordinary intelligent communication terminals, including smart phones, IPads, smart watches, etc., are connected to the satellite terminal through WIFI, and satellite communication can be realized by using the APP developed by the satellite terminal. Figure 1 As shown, the satellite terminal specifically includes: a power module, a Tiantong module, a WIFI module, and an application processing module.

[0031] Power module: provides power for the entire system;

[0032] Tiantong module: used to receive signals and transmit device signals to satellites;

[0033] WIFI module: receive and transmit WIFI signals;

[0034] Application processing module: used for audio and video processing and conversion;

[0035] The power supply module is electrically connected to the Tiantong module, the WIFI module and the application processing module respectively; the Tiantong module is connected to the application processing module, and the application processing module is also connected to the WIFI module.

[0036] Specifically, refer to Figure 2 As shown, the power module includes: a power EMI filter circuit and a buck chip; the power EMI filter circuit is connected to the buck chip.

[0037] The external 12V power input provides power to the entire device. The power EMI filter circuit filters out the interference of high-frequency pulses from the external power grid on the power supply, and also reduces the electromagnetic interference of the switching power supply itself to the outside world. The 12V power supply is converted into the 5V power supply required by the device through the step-down chip to power the internal equipment.

[0038] Specifically, refer to Figure 3 As shown, the Tiantong module includes: a Tiantong antenna, a Tiantong receiving circuit, a Tiantong transmitting circuit and a Tiantong baseband chip. The Tiantong antenna is connected to the Tiantong receiving circuit and the Tiantong transmitting circuit respectively, and the Tiantong receiving circuit and the Tiantong transmitting circuit are both connected to the Tiantong baseband chip.

[0039] Tiantong antenna: receives signals from Tiantong satellites, transmits equipment signals to satellites, and ensures normal communication of Tiantong satellite equipment;

[0040] Tiantong receiving circuit: amplifies and filters the satellite signals received by the Tiantong satellite and sends them to the Tiantong baseband chip for processing;

[0041] Tiantong transmitting circuit: amplifies the transmit modulation signal of the Tiantong baseband chip, and the amplified signal is transmitted to the satellite through the Tiantong antenna;

[0042] Tiantong baseband chip: processes the satellite signals received by the Tiantong receiving circuit and generates modulated high-frequency satellite signals to the antenna transmitting circuit.

[0043] Reference Figure 4 As shown, the Tiantong antenna includes:

[0044] The antenna receives S-band four-arm helical antenna, left-hand circularly polarized antenna, receiving signals from Tiantong satellite, operating frequency 2170~2200MHz, antenna axial ratio ≤3.0dB, output standing wave ≤2.0.

[0045] The antenna transmits an L-band four-arm helical antenna, a left-hand circularly polarized antenna, which transmits signals to the Tiantong satellite. The operating frequency is 1980~2010MHz, the antenna axial ratio is ≤3.0dB and the output standing wave is ≤2.0.

[0046] The duplexer combines the S-band signal received by Tiantong and the L-band signal transmitted by Tiantong into one signal output. The receiving end frequency band is: 2170-2200MHz, the transmitting end frequency band is: 1980-2010MHz, and the public end frequency band is: 1980-2200MHz.

[0047] SMA RF connector, used to connect Tiantong antenna and terminal equipment.

[0048] Specifically, refer to Figure 5As shown, the WIFI module includes: a WIFI antenna, a WIFI receiving circuit, a WIFI transmitting circuit and a WIFI baseband processing chip; the WIFI antenna is connected to the WIFI receiving circuit and the WIFI transmitting circuit respectively, and the WIFI receiving circuit and the WIFI transmitting circuit are both connected to the WIFI baseband processing chip. Figure 6 As shown in the figure, the data interaction diagram between the common intelligent communication terminal and the portable satellite terminal is connected wirelessly via WIFI to complete the satellite dialing and satellite SMS sending services.

[0049] WIFI antenna, receiving and transmitting WIFI signals, frequency band: 2.4GHz~2.4835GHz, antenna efficiency 50%, standing wave ratio ≤2.0;

[0050] The WIFI receiving circuit amplifies and filters the WIFI signal received by the WIFI antenna and transmits it to the WIFI baseband processing chip for signal processing;

[0051] The WIFI transmitting circuit amplifies and filters the WIFI high-frequency modulation signal output by the WIFI baseband processing chip, and transmits the WIFI signal to the WIFI antenna;

[0052] The WIFI baseband processing chip synthesizes the baseband signal to be transmitted and decodes the received baseband signal; when transmitting the baseband signal, it compiles the WIFI data signal into a baseband code; when receiving the signal, it decodes the baseband code into a WIFI data signal.

[0053] Specifically, refer to Figure 7 As shown, the application processing module includes: a video processor, an application processor and an audio processor; the video processor and the application processor are bidirectionally connected to each other, and the application processor and the audio processor are bidirectionally connected to each other.

[0054] Video processor: used to process video signals to present high-quality images on various display devices.

[0055] Application processor: A very large-scale integrated circuit that expands audio and video functions and dedicated interfaces based on a low-power CPU.

[0056] Audio processor: used to process audio signals, including the control, processing and conversion of audio signals.

[0057] The utility model provides a portable satellite terminal. An ordinary intelligent communication terminal uses an APP to connect to the Tiantong satellite terminal through WIFI. After the application processing module completes the satellite data processing, it completes the satellite dialing and satellite SMS sending services. The satellite antenna uses a high-gain omnidirectional antenna to maintain an efficient connection with the Tiantong satellite at all times to ensure normal communication.

[0058] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A portable satellite terminal, characterized in that: include: Power module, Tiantong module, WIFI module, application processing module; The power supply module is electrically connected to the Tiantong module, the WIFI module and the application processing module respectively. The Tiantong module is connected to the application processing module, and the application processing module is also connected to the WIFI module.

2. The portable satellite terminal according to claim 1, characterized in that: The power module comprises: a power EMI filter circuit and a step-down chip; the power EMI filter circuit is connected to the step-down chip.

3. The portable satellite terminal according to claim 1, characterized in that: The Tiantong module includes: a Tiantong antenna, a Tiantong receiving circuit, a Tiantong transmitting circuit and a Tiantong baseband chip; The Tiantong antenna is connected to the Tiantong receiving circuit and the Tiantong transmitting circuit respectively, and the Tiantong receiving circuit and the Tiantong transmitting circuit are both connected to the Tiantong baseband chip.

4. The portable satellite terminal according to claim 3, characterized in that: The Tiantong antenna comprises: an antenna receiving S-band quadrifilar helical antenna, an antenna transmitting L-band quadrifilar helical antenna, a duplexer and an SMA radio frequency connector; The antenna receiving S-band four-arm helical antenna and the antenna transmitting L-band four-arm helical antenna are both connected to the duplexer, and the duplexer is connected to the SMA radio frequency connector.

5. The portable satellite terminal according to claim 4, characterized in that: The antenna receives an S-band four-arm helical antenna with an operating frequency of 2170-2200 MHz, an antenna axial ratio of ≤3.0 dB, and an output standing wave of ≤2.

0.

6. The portable satellite terminal according to claim 4, characterized in that: The antenna transmits an L-band four-arm helical antenna with an operating frequency of 1980-2010 MHz, an antenna axial ratio of ≤3.0 dB and an output standing wave of ≤2.

0.

7. The portable satellite terminal according to claim 4, characterized in that: The receiving end frequency band of the duplexer is 2170-2200 MHz, the transmitting end frequency band is 1980-2010 MHz, and the common end frequency band is 1980-2200 MHz.

8. The portable satellite terminal according to claim 1, characterized in that: The WIFI module includes: a WIFI antenna, a WIFI receiving circuit, a WIFI transmitting circuit and a WIFI baseband processing chip; The WIFI antenna is connected to the WIFI receiving circuit and the WIFI transmitting circuit respectively, and the WIFI receiving circuit and the WIFI transmitting circuit are both connected to the WIFI baseband processing chip.

9. The portable satellite terminal according to claim 8, characterized in that: The frequency band for receiving and transmitting WIFI signals by the WIFI antenna is 2.4 GHz to 2.4835 GHz, the antenna efficiency is 50%, and the standing wave ratio is ≤2.

0.

10. The portable satellite terminal according to claim 1, characterized in that: The application processing module includes: a video processor, an application processor and an audio processor; the video processor and the application processor are bidirectionally connected to each other, and the application processor and the audio processor are bidirectionally connected to each other.

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