Vehicle-mounted satellite communication terminal and vehicle

Abstract

The invention provides a vehicle-mounted satellite communication terminal and a vehicle, and the vehicle-mounted satellite communication terminal comprises an antenna unit which is used for receiving and transmitting a radio frequency signal; the host unit is used for signal processing and data communication; wherein the host unit is arranged inside a vehicle, the antenna unit is arranged outside the vehicle, and the host unit is in communication connection with the antenna unit. In the embodiment of the invention, the antenna and the host of the vehicle-mounted satellite communication terminal are separately arranged, the host is moved into the vehicle, and only the antenna is arranged outside the vehicle, so that the installation space of the vehicle-mounted satellite communication terminal outside the vehicle is reduced, and the problems generated when the vehicle-mounted satellite communication terminal is installed on the vehicle are reduced.

Description

Technical Field

[0001] The present application relates to the field of satellite communication technology, and in particular to a vehicle-mounted satellite communication terminal and a vehicle. Background Art

[0002] A vehicle-mounted satellite communication terminal is a communication device used in vehicles. It connects to geostationary satellites or low-earth orbit satellites to achieve data transmission, voice calls, positioning and other functions. This terminal is particularly suitable for areas where traditional ground communication networks are difficult to cover or cannot be used. However, if the size of the vehicle-mounted satellite communication terminal is large, it will take up too much installation space outside the vehicle, which may increase the wind resistance of the vehicle, affect the optimal installation position of the antenna, make maintenance inconvenient and not aesthetically pleasing, which is not conducive to the popularization of vehicle-mounted satellite communication terminals in vehicles. Summary of the invention

[0003] The embodiments of the present application provide a vehicle-mounted satellite communication terminal and a vehicle, which are introduced from the following aspects.

[0004] In a first aspect, a vehicle-mounted satellite communication terminal is provided, which includes: an antenna unit for receiving and sending radio frequency signals; a host unit for signal processing and data communication; wherein the host unit is arranged inside the vehicle, the antenna unit is arranged outside the vehicle, and the host unit and the antenna unit are electrically connected.

[0005] In some possible implementations, the antenna unit includes at least two antenna sub-units, and the at least two antenna sub-units are respectively disposed at different locations outside the vehicle.

[0006] In some possible implementations, the antenna unit includes a first shell, and the first shell belongs to the vehicle shell.

[0007] In some possible implementations, the vehicle-mounted satellite communication terminal is a vehicle-mounted high-throughput satellite communication terminal.

[0008] In some possible implementations, the antenna unit is a phased array antenna unit.

[0009] In some possible implementations, the antenna unit corresponds to the Ku band and / or the Ka band.

[0010] In a second aspect, a vehicle is provided, comprising any vehicle-mounted satellite communication terminal in the first aspect.

[0011] In an embodiment of the present application, the antenna and host of the vehicle-mounted satellite communication terminal are separated, the host is moved into the vehicle, and only the antenna is set outside the vehicle, thereby reducing the installation space required for the vehicle-mounted satellite communication terminal outside the vehicle, thereby helping to reduce the problems caused by installing the vehicle-mounted satellite communication terminal on the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 An interactive diagram of a satellite communication scenario.

[0013] Figure 2 A schematic diagram of the structure of a vehicle-mounted satellite communication terminal provided in one embodiment of the present application.

[0014] Figure 3 A schematic structural diagram of a vehicle-mounted satellite communication terminal provided in another embodiment of the present application.

[0015] Figure 4 A schematic diagram of the arrangement of the phased array antenna provided in an embodiment of the present application.

[0016] Figure 5 A schematic diagram of the interaction of a vehicle-mounted satellite communication terminal in a satellite communication scenario provided in an embodiment of the present application.

[0017] Figure 6 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0019] The satellite communication system consists of three parts: space segment, ground segment and user segment, which are introduced below.

[0020] Space segment: With communication satellites as the main body, the forwarding on the satellite is the main payload of the communication satellite and the most important functional component of the space segment of the satellite communication system. It is used to receive and forward signals sent by satellite communication earth stations to realize communication between earth stations or between earth stations and spacecraft.

[0021] Ground segment: includes all facilities that support mobile phones, TV viewers, network operators, and ground users to access satellite transponders and realize communication between users. The gateway station is the core equipment of the ground segment. The ground segment of the satellite communication system also includes the satellite control center (SCC) and the tracking, telemetry and command station (TT&C). SCC and TT&C are mainly responsible for tracking and positioning the satellite during the launch phase, issuing action commands such as orbit change and solar panel deployment, as well as orbit monitoring and correction during the satellite's in-orbit operation, interference and abnormal problem monitoring and detection, etc.

[0022] User segment: mainly composed of various types of terminal user equipment, including VSAT stations, handheld terminals, and mobile terminals carried on vehicles, ships, and airplanes, as well as various application software and services based on satellite communications.

[0023] Radio frequency bands are roughly divided according to different business types: C-band, Ku-band and KA-band are the most widely used frequency bands in satellite communication systems. C-band and Ku-band are mainly used for satellite broadcasting and satellite fixed communication services; KA-band is mainly used to provide marine, air and land mobile broadband communications.

[0024] For ease of understanding, the following Figure 1 Introduce the scenarios to which the embodiments of the present application are applicable. Figure 1 As shown, Figure 1 The user segment in includes a vehicle 110 and an antenna 130, Figure 1 The space segment in the vehicle 110 includes a communication satellite 120. The vehicle 110 sends a signal to the communication satellite 120 or receives a signal sent by the communication satellite 120 based on the antenna 130 to achieve functions such as data transmission, voice calls, and positioning.

[0025] The embodiment of the present application does not specifically limit the vehicle 110, and the vehicle 110 can be any vehicle having an antenna 130. For example, the vehicle 110 can be the following passenger vehicles: a multi-purpose vehicle (MPV), a sport utility vehicle (SUV), a sedan, and a crossover passenger car. For another example, the vehicle 110 can also be the following commercial vehicles: a truck, a bus, a special vehicle, and a semi-trailer. Alternatively, the vehicle 110 can be a traditional fuel vehicle or a new energy vehicle. Alternatively, the vehicle 110 can be a manned vehicle or an unmanned vehicle.

[0026] The embodiments of the present application do not specifically limit the communication satellite 120, and the communication satellite 120 may be any satellite system that can send and receive signals. For example, the communication satellite 120 may include a geosynchronous orbit satellite system, a low-orbit satellite system, and a medium-orbit satellite system, or the communication satellite 120 may be a high-throughput satellite system or a traditional satellite system. Exemplarily, the communication satellite 120 may include one of the following satellites: ChinaSat, Asia-Pacific 6D communication satellite, Iridium, Tiantong-1, and Inmarsat.

[0027] Different satellite systems may correspond to different signal frequency bands. For example, high-throughput communication satellites can operate in different frequency bands, the most common of which are Ku-band and Ka-band. These two frequency bands have their own characteristics and application scenarios. The following is a detailed introduction to these two frequency bands and their applications in high-throughput satellites.

[0028] The frequency range of Ku band is approximately from 12 to 18 GHz. Compared with C band, Ku band provides wider bandwidth and can support higher data transmission rate. However, Ku band is more susceptible to weather conditions than C band, especially in case of rainfall, the signal attenuation will be more obvious. Nevertheless, Ku band is still one of the widely used frequency bands for various satellite communication services, including TV broadcasting, Internet access and mobile communication.

[0029] The frequency range of the Ka-band is roughly from 26.5GHz to 40GHz. Compared with the Ku-band, the advantage of the Ka-band is that it can provide a larger bandwidth, thereby supporting a higher data transmission rate. This means that the Ka-band is very suitable for high-throughput satellite communications, especially in application scenarios that require high-speed data transmission, such as high-definition video transmission, broadband Internet access, etc. However, due to the higher frequency, Ka-band signals are more susceptible to atmospheric conditions (such as rain attenuation), so measures need to be taken to overcome these problems.

[0030] The embodiment of the present application does not specifically limit the antenna 130, and the antenna 130 can be any terminal device including a satellite communication antenna. The antenna 130 can transmit and receive radio frequency signals of one or more frequency bands. Taking the antenna 130 as a high-throughput satellite antenna as an example, the antenna 130 can correspond to the Ku band, the Ka band, or the Ku band and the Ka band.

[0031] The antenna type of the antenna 130 may be in various forms, for example, the antenna type of the antenna 130 may include a phased array antenna, a parabolic antenna, a flat panel antenna, a mechanical scanning antenna, and a multi-beam antenna.

[0032] It should be noted that the application scenarios of the technical solutions provided in the embodiments of the present application are not limited to Figure 1 With the evolution of technology, other newly emerging satellite communication technology implementations do not exceed the scope of application scenarios covered by the embodiments of the present application.

[0033] Figure 1 One implementation of the antenna 130 is a vehicle-mounted satellite communication terminal. A vehicle-mounted satellite communication terminal is a communication device used on a vehicle, which realizes functions such as data transmission, voice calls, and positioning by establishing a connection with a communication satellite 120. This terminal is particularly suitable for areas where traditional ground communication networks are difficult to cover or cannot be used. However, if the size of the vehicle-mounted satellite communication terminal is large, it will take up too much installation space outside the vehicle, which may increase the wind resistance of the vehicle, affect the optimal installation position of the antenna, inconvenience in maintenance, and lack of aesthetics, which is not conducive to the popularization of vehicle-mounted satellite communication terminals on vehicles.

[0034] In response to the above problems, in an embodiment of the present application, the antenna and host of the vehicle-mounted satellite communication terminal are separated, the host is moved into the vehicle, and only the antenna is set outside the vehicle, thereby reducing the installation space required for the vehicle-mounted satellite communication terminal outside the vehicle, thereby helping to reduce the problems caused by installing the vehicle-mounted satellite communication terminal on the vehicle.

[0035] Combine the following Figure 2 , the vehicle-mounted satellite communication terminal provided in the embodiment of the present application is introduced in detail.

[0036] like Figure 2 As shown, the vehicle-mounted satellite communication terminal 200 includes a host unit 210 and an antenna unit 220 .

[0037] The host unit 210 is used for signal processing and data communication. For example, the host unit 210 can realize the following functions: mutual conversion between analog signals and digital signals, modulation and demodulation of digital signals, packaging of business data, and interaction with vehicle data.

[0038] The antenna unit 220 is used to receive and send radio frequency signals. The embodiment of the present application does not limit the specific type of the antenna unit 220. For example, the type of the antenna unit 220 may include a phased array antenna, a parabolic antenna, a flat antenna, a mechanical scanning antenna, and a multi-beam antenna.

[0039] The traditional integrated vehicle-mounted satellite communication terminal has a large size because the host and antenna are set in the same shell. For example, in a high-throughput satellite communication system, since high-throughput satellites can provide higher data throughput, in order to match the transmission capacity of high-throughput satellites, the size of the phased array antenna in the vehicle-mounted high-throughput satellite communication terminal will be designed to be larger. Therefore, the integrated design size of the vehicle-mounted high-throughput satellite communication terminal will also be relatively large. This may increase the wind resistance of the vehicle, affect the optimal installation position of the antenna, inconvenience maintenance, and lack of aesthetics.

[0040] The host unit 210 and the antenna unit 220 in the embodiment of the present application are separately arranged, wherein the host unit 210 is arranged inside the vehicle, and the antenna unit 220 is arranged outside the vehicle, and the host unit 210 and the antenna unit 220 are electrically connected. In this way, the installation space required for the vehicle-mounted satellite communication terminal outside the vehicle is reduced, thereby helping to reduce the problems caused by installing the vehicle-mounted satellite communication terminal on the vehicle.

[0041] The present application embodiment can be applied to Figure 1In some implementations, the satellite communication scenario in the embodiments of the present application may be a high-throughput satellite communication system. For example, in a high-throughput satellite communication system, the antenna type of the antenna unit 220 may be a phased array antenna, and illustratively, the phased array antenna corresponds to the Ku band, or to the Ka band, or to the Ku band and the Ka band.

[0042] The embodiment of the present application does not limit the location of the host unit 210 in the vehicle. For example, the host unit 210 can be set in the trunk of the vehicle. For another example, the host unit 210 can be set in the cockpit of the vehicle or in a compartment in the middle of the vehicle.

[0043] The embodiment of the present application does not limit the location of the antenna unit 220 outside the vehicle. For example, it can be set at multiple locations on the roof of the vehicle. In the embodiment of the present application, since the antenna unit 220 is smaller in size, it occupies less external space of the vehicle. Therefore, compared with the integrated vehicle-mounted satellite terminal, there will be more suitable installation locations. For example, the antenna unit 220 can be set at the center of the roof to obtain a better satellite signal reception angle. For another example, the antenna unit 220 can also be set near the corner or edge of the roof to avoid the vehicle's sunroof glass.

[0044] As an example, assume that the antenna unit 220 is a phased array antenna, such as Figure 3 As shown, the host and the phased array antenna are separately arranged at different positions of the vehicle; wherein the vehicle is arranged on the roof of the vehicle, and the host is arranged in the trunk of the vehicle, and the two are connected by a cable. Figure 3 It can be seen that since the host is set inside the car, only the phased array antenna is set outside the car, and the overall thickness of the phased array antenna (such as a flat-panel array) is thinner, the installation space occupied will also be smaller.

[0045] In some implementations, the antenna unit 220 may include at least two antenna subunits, that is, the antenna unit 220 may be divided into multiple parts, which are respectively arranged at different locations outside the vehicle. For example, the antenna unit 220 may include 4 antenna subunits. For another example, the antenna unit 220 may include 2 antenna subunits.

[0046] As an example, assume that the antenna unit 220 is a phased array antenna, such as Figure 4 As shown, the phased array antenna is arranged on the roof and is divided into four phased array sub-antennas. These phased array sub-antennas can independently receive or send radio frequency signals. The four phased array sub-antennas can be as follows Figure 4 As shown, they are respectively arranged at the four corners of the roof, and of course they can be arranged around the sunroof glass in other ways. This arrangement does not block the view of the sunroof, and can also enable each phased array antenna to obtain a better satellite signal reception angle.

[0047] In the embodiment of the present application, by dividing the antenna unit 220 into multiple antenna sub-units, the location space outside the vehicle can be more flexibly and fully utilized, so that the antenna unit 220 can be installed on the vehicle in a variety of optional ways, so that the installation position will be more reasonable.

[0048] In some implementations, the antenna unit 220 may further include a first housing, which may serve as a protective cover to protect the antenna from external environmental factors (such as weather conditions).

[0049] The above-mentioned first shell is part of the vehicle shell, that is, the antenna can be arranged between the vehicle shells, and the protective cover of the antenna is the shell of the vehicle. For example, the antenna can be fixed in a groove at a specific position on the roof, and the groove can be closed based on the first shell to protect the antenna. For another example, the antenna can be fixed between the skylight glass on the roof, and the window glass serves as the first shell to protect the antenna. In an embodiment of the present application, the antenna unit 220 adopts a conformal design that matches the surface of the vehicle, ensuring good integration with the vehicle, reducing wind resistance and improving the overall appearance consistency.

[0050] The host unit 210 may have a variety of structural forms, which are not specifically limited in the present application embodiment. A possible structural form of the host unit 210 is exemplarily introduced below.

[0051] The host unit 210 may include a digital signal processor, a central processing unit, a memory, an interface module, a power management module, and a heat dissipation device. The functions of each part are introduced below.

[0052] The digital signal processor is used to perform complex digital signal processing tasks, such as modulation and demodulation, channel coding and decoding, and synchronization, etc.; including processing the signal received from the antenna unit 220 and converting the data signal to be sent into an appropriate format.

[0053] The central processing unit is used to execute control logic, protocol processing and high-level data processing. The central processing unit controls the operation of the entire system, including the selection of signal processing algorithms, communication with external systems, etc., to ensure that the system can operate efficiently.

[0054] Memory is used to store program code and temporary data, providing necessary data support for signal processing and system control.

[0055] The interface module is used to connect the radio frequency unit, external data source and control unit, etc.; to achieve communication with the antenna unit 220, the vehicle internal system and other external devices.

[0056] The power management module provides power to various components in the vehicle-mounted satellite communication terminal 200 and ensures stable power supply to various components.

[0057] The heat dissipation device is used to help the components in the host unit 210 maintain a proper operating temperature under high load conditions.

[0058] The antenna unit 220 may have a variety of structural forms, which are not specifically limited in the embodiments of the present application. A possible structural form of the antenna unit 220 is exemplarily introduced below.

[0059] The antenna unit 220 may include a radiation unit, a phase shifter, a feeding network, a radio frequency front end, a control circuit, a protective cover, etc. The functions of each part are introduced below.

[0060] The radiating element is the basic unit of the antenna, usually a series of small antennas. Each radiating element can independently control the phase of the signal, thereby forming a directional beam through phase interference to receive and send radio frequency signals.

[0061] Phase shifters are used to adjust the phase of the signal received or transmitted by each radiating element, thereby controlling the direction of the beam.

[0062] The feeding network is used to distribute the signal from the RF unit to each radiating unit and ensure that the signal can reach each radiating unit evenly.

[0063] The RF front end includes amplifiers (to boost signal strength), filters (to filter out unwanted frequency components), and other RF processing components to optimize signal quality and performance.

[0064] The control circuit is used to monitor and adjust the state of the phase shifter to ensure that the beam is correctly pointed at the target satellite.

[0065] The protective cover is used to protect the antenna from external environmental factors (such as weather conditions) without affecting the propagation of radio waves.

[0066] Combined with the following Figure 5 , the vehicle-mounted satellite communication terminal provided in the embodiment of the present application is further introduced.

[0067] Figure 5 The high-throughput satellite communication system shown in the figure includes high-throughput communication satellites in the space segment (such as ChinaSat), vehicle-mounted high-throughput satellite communication terminals in the user segment, gateway stations in the ground segment, the Internet, and cloud platforms. Figure 5 In the process, the high-throughput communication satellite and the gateway station and the vehicle-mounted high-throughput satellite communication terminal respectively establish satellite communication links to exchange information; the gateway station exchanges information with the cloud platform by accessing the Internet.

[0068] In the high-throughput satellite communication system, the high-throughput communication satellite acts as a communication relay station, providing connection between the user segment and the ground segment.

[0069] The cloud platform provides Internet-based computing resources and services that users can access through the Internet. In high-throughput satellite communication systems, the cloud platform can serve as a data center to store and process data from satellites, and can also provide various applications and services.

[0070] The gateway station is an important component of the satellite communication system and has the following functions: receiving uplink signals from vehicles and forwarding them to high-throughput satellites; receiving downlink signals from high-throughput satellites and forwarding them to vehicles; modulating / demodulating, encrypting / decrypting, compressing / decompressing signals; providing vehicles with access to ground networks, including the Internet and cloud platforms; and managing satellite network resources, such as spectrum and bandwidth.

[0071] The vehicle-mounted high-throughput satellite communication terminal realizes communication between the vehicle and the ground or other vehicles through satellite communication links.

[0072] In an embodiment of the present application, a vehicle-mounted high-throughput satellite communication terminal includes a host and a phased array antenna. Figure 5 The host and the phased array antenna are separately arranged, wherein the host is arranged inside the vehicle, and the phased array antenna is arranged outside the vehicle, and the host and the phased array antenna are connected by a cable. In this way, the installation space required for the vehicle-mounted high-throughput satellite communication terminal outside the vehicle is reduced.

[0073] The phased array antenna receives and sends radio frequency signals through a satellite communication link. The phased array antenna can be set at multiple locations outside the vehicle, for example, it can be set at multiple locations on the roof of the vehicle. In the embodiment of the present application, since the phased array antenna is smaller in size, it occupies less external space of the vehicle, so there will be more suitable installation locations compared to the integrated vehicle-mounted satellite communication terminal. For example, the phased array antenna can be set at the center of the roof to obtain a better satellite signal reception angle. For another example, the phased array antenna can also be set near the corner or edge of the roof to avoid the vehicle's sunroof glass.

[0074] The phased array antenna can be divided into multiple parts and respectively arranged at different positions outside the vehicle. For example, the phased array antenna can include 4 phased array sub-antennas. For another example, the phased array antenna can include 2 phased array sub-antennas.

[0075] The protective cover of the phased array antenna can also be a part of the vehicle shell. For example, the phased array antenna can be fixed in a groove at a specific position on the roof, and the groove is closed based on the vehicle shell to protect the antenna. For another example, the phased array antenna can be fixed between the skylight glass on the roof, and the window glass serves as a protective cover to protect the antenna.

[0076] The host is connected to the phased array antenna for RF signal processing on the one hand, and is connected to the control unit (ECU) on the other hand to communicate data with the vehicle. For example, the host can realize the following functions: mutual conversion between analog signals and digital signals, modulation and demodulation of digital signals, encapsulation of business data, and interaction with vehicle data. The host can be set in multiple locations inside the vehicle. For example, the host can be set in the trunk of the vehicle. For another example, the host can be set in the cockpit of the vehicle or in the compartment in the middle of the vehicle.

[0077] Figure 6 This is a schematic diagram of the structure of a vehicle provided in an embodiment of the present application. Figure 6 As shown, the vehicle 600 includes the vehicle-mounted satellite communication terminal 200 described above.

[0078] The vehicle-mounted satellite communication terminal 200 includes an antenna unit for receiving and sending radio frequency signals; a host unit for signal processing and data communication;

[0079] The host unit is arranged inside the vehicle, the antenna unit is arranged outside the vehicle, and the host unit and the antenna unit are communicatively connected.

[0080] In some implementations, the antenna unit includes at least two antenna sub-units, and the at least two antenna sub-units are respectively disposed at different locations outside the vehicle.

[0081] In some implementations, the antenna unit includes a first housing, and the first housing belongs to the vehicle housing.

[0082] In some implementations, the vehicle-mounted satellite communication terminal is a vehicle-mounted high-throughput satellite communication terminal.

[0083] In some implementations, the antenna unit is a phased array antenna unit.

[0084] In some implementations, the antenna unit corresponds to the Ku band and / or the Ka band.

[0085] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0086] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0087] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0088] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0089] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0090] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0091] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0092] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A vehicle-mounted satellite communication terminal, characterized in that: include: An antenna unit, used for receiving and sending radio frequency signals; Host unit, used for signal processing and data communication; The host unit is arranged inside the vehicle, the antenna unit is arranged outside the vehicle, and the host unit and the antenna unit are electrically connected.

2. The vehicle-mounted satellite communication terminal according to claim 1, characterized in that: The antenna unit includes at least two antenna sub-units, and the at least two antenna sub-units are respectively arranged at different positions outside the vehicle.

3. The vehicle-mounted satellite communication terminal according to claim 1 or 2, characterized in that: The antenna unit comprises a first housing, which belongs to the vehicle housing.

4. The vehicle-mounted satellite communication terminal according to claim 1, characterized in that: The vehicle-mounted satellite communication terminal is a vehicle-mounted high-throughput satellite communication terminal.

5. The vehicle-mounted satellite communication terminal according to claim 1, characterized in that: The antenna unit is a phased array antenna unit.

6. The vehicle-mounted satellite communication terminal according to claim 5, characterized in that: The antenna unit corresponds to the Ku band and / or the Ka band.

7. A vehicle, characterized in that: It comprises the vehicle-mounted satellite communication terminal as claimed in any one of claims 1 to 6.

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