Vehicle
By employing a distributed setup of multiple feed radiators and coupling switching modules within the vehicle, the antenna gain deficiency caused by vehicle body obstruction was resolved, achieving omnidirectional coverage and improving the overall vehicle communication performance and network signal strength.
Patent Information
- Application Number
- PCT/CN2024/141926
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-19
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-23
AI Technical Summary
In weak field environments or specific signal environments, antenna gain defects in vehicle communication components lead to poor communication performance, especially gain defects caused by vehicle body obstruction, which affect the overall vehicle communication effect.
A distributed configuration of multiple feed radiators is adopted, including a first feed radiator and a second feed radiator, which are coupled through a switching module. The first feed radiator is used to compensate for the gain deficiency of the second feed radiator, forming an omnidirectional coverage effect and improving the communication performance of the whole vehicle.
This effectively avoids antenna gain defects caused by vehicle body obstruction, improves the overall vehicle's communication performance and network signal strength, and ensures communication stability and reliability.
Smart Images

Figure CN2024141926_23102025_PF_FP_ABST
Abstract
Description
Vehicle
[0001] The present application claims priority to the Chinese Patent Application No. 202410482528.0, filed on April 19, 2024, and entitled "Vehicle", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD
[0002] Embodiments of the present application relate to the field of communication technology, and in particular to a vehicle. BACKGROUND
[0003] A vehicle is usually provided with a communication component, which can be a telematics box (Tbox) for example. The telematics box can be connected with a vehicle-mounted host of the vehicle, so that the vehicle-mounted host of the vehicle can realize communication with a user terminal, a satellite, a communication base station and the like through the telematics box. In some weak field environments or environments with specific signal coming waves, there is an antenna gain defect in the directivity pattern of the communication component, and the communication performance of the whole vehicle is poor. SUMMARY
[0004] Embodiments of the present application provide a vehicle for improving the phenomenon that the directivity pattern has an antenna gain defect.
[0005] In a first aspect, embodiments of the present application provide a vehicle, the vehicle comprising a vehicle body, a first feed radiation body and a communication component. The vehicle body comprises a frame and a chassis connected with each other. The first feed radiation body is mounted on the frame. The communication component is mounted on the frame or in a space enclosed by the frame and the chassis, and the communication component comprises a plurality of feed radiation bodies, a switching module and a communication module. The working frequency bands of the plurality of feed radiation bodies are at least partially the same. The number of the plurality of feed radiation bodies is greater than the number of the first feed radiation body. At least one of the plurality of feed radiation bodies is a second feed radiation body. The working frequency bands of the second feed radiation body and the first feed radiation body are the same. The distance between the second feed radiation body and at least one of the first feed radiation bodies is greater than 40 cm. The common port of the switching module is coupled with the communication module. The first port of the switching module is coupled with the second feed radiation body. The second port of the switching module is coupled with the first feed radiation body through a cable.
[0006] The communication assembly can be installed in a space surrounded by the frame and the chassis, and the space surrounded by the frame and the chassis can be used for driving, riding and storage (for example, the communication assembly can be installed in a trunk surrounded by a rear cover of the frame), or the communication assembly can be installed in an interior of the frame (for example, the frame can include a spoiler, the spoiler can be a hollow structure, and the communication assembly can be located in an interior of the spoiler of the frame). The first feeding radiator can be installed on the frame. It can be understood that the first feeding radiator can be installed in an interior of an insulating part in the frame, or the first feeding radiator can be installed on an outer surface of the frame, or the first feeding radiator can be installed on an inner surface of the frame. Through the above arrangement, when the vehicle communicates, the plurality of feeding radiators of the communication assembly can be used as the main part, and the first feeding radiator can be used as the auxiliary part. When the second feeding radiator is blocked by the vehicle body and has an antenna gain defect, the first feeding radiator can compensate for the antenna gain defect, which is beneficial to avoid the antenna gain defect caused by the blocking of the vehicle body and improve the communication performance of the vehicle.
[0007] In some embodiments that can include the above-mentioned embodiments, the communication module includes a control unit, and the communication module has an initial working state and a first working state. The control unit is configured to control the switching module to couple the communication module and the second feeding radiator in the initial working state. The control unit is further configured to control the switching module to couple the communication module and the first feeding radiator in the first working state. Through the above arrangement, when the vehicle communicates, the second feeding radiator is mainly used for communication, and the first feeding radiator is used as an auxiliary part to compensate for the gain defect of the second feeding radiator, thereby improving the communication performance of the vehicle.
[0008] In some embodiments that can include the above-mentioned embodiments, the communication module further includes a detection unit configured to obtain a signal strength of the first feeding radiator and a signal strength of the second feeding radiator. The communication module is configured to switch from the initial working state to the first working state when the signal strength of the second feeding radiator is less than a preset value and the signal strength of the second feeding radiator is less than the signal strength of the first feeding radiator. Through the above arrangement, since the signal strength of the first feeding radiator is stronger than the signal strength of the second feeding radiator, the communication assembly communicates through the first feeding radiator in the first working state, which is beneficial to improve the communication performance of the vehicle.
[0009] In some embodiments which can comprise the above-mentioned embodiments, the communication module further comprises a detection unit configured to obtain relative pose information between the satellite and the vehicle body, the relative pose information being configured to represent a position and an attitude of the vehicle body relative to the satellite in a plane parallel to a bottom surface of the vehicle. The communication module is configured to switch from the initial working state to the first working state according to the relative pose information. Through the above arrangement, in the first working state, the communication component communicates through the first feed radiation body, which is conducive to improving the communication performance of the whole vehicle.
[0010] In some embodiments which can comprise the above-mentioned embodiments, the first feed radiation body and the second feed radiation body jointly constitute an omnidirectional antenna. Through the above arrangement, the first feed radiation body and the second feed radiation body can jointly form an omnidirectional coverage effect, thereby improving the communication performance of the whole vehicle.
[0011] In some embodiments which can comprise the above-mentioned embodiments, part of the plurality of feed radiation bodies forms a main diversity antenna, and part of the plurality of feed radiation bodies forms at least one diversity antenna. The first feed radiation body is coupled to the communication module through the switching module and the main diversity antenna. Through the above arrangement, when the communication module is coupled to the main diversity antenna, the communication module can receive and transmit signals through the main diversity antenna, and when the communication module is coupled to the first feed radiation body, the communication module can receive and transmit signals through the first feed radiation body.
[0012] In some embodiments which can comprise the above-mentioned embodiments, in a plane parallel to a bottom surface of the vehicle, the first feed radiation body is configured to be used as an antenna and to receive and transmit signals in a first coverage area, and the second feed radiation body is configured to be used as an antenna and to receive and transmit signals in a second coverage area. The coverage angle of the first coverage area is smaller than the coverage angle of the second coverage area. Since the coverage angle of the first coverage area is smaller than the coverage angle of the second coverage area, when the vehicle communicates, the second feed radiation body is mainly used for communication, and the first feed radiation body is used to compensate for the gain defect of the second feed radiation body, thereby improving the communication performance of the whole vehicle.
[0013] In some embodiments which can comprise the above-mentioned embodiments, the frame comprises a front cover, a front windshield, a top structural member, a rear windshield and a rear cover arranged in sequence from a front end of the vehicle body to a rear end of the vehicle body. The communication component is located inside the top structural member, and the first feed radiation body is arranged on the front windshield or the rear windshield. Through the distributed arrangement of the first feed radiation body and the second feed radiation body, when the second feed radiation body has an antenna gain defect, the first feed radiation body located thereon can compensate for the antenna gain defect, which is conducive to avoiding the antenna gain defect caused by the shielding of the vehicle body and improving the communication performance of the whole vehicle.
[0014] In some embodiments which can include the above-mentioned embodiments, the frame comprises, in sequence from the vehicle head to the vehicle tail of the vehicle body, a front cover, a front windshield, a top structural member, a rear windshield, and a rear cover. The communication component is located at one side of the rear cover, and the first feeding radiator is arranged on the front windshield or the top structural member. Through the distributed arrangement of the first feeding radiator and the second feeding radiator, when the second feeding radiator has antenna gain defects, the first feeding radiator located can compensate for the antenna gain defects, which is conducive to avoiding antenna gain defects caused by the vehicle body shielding and improving the communication performance of the whole vehicle.
[0015] In some embodiments which can include the above-mentioned embodiments, the communication component comprises a vehicle networking terminal box. Through the arrangement of the first feeding radiator and the second feeding radiator, when the second feeding radiator has antenna gain defects, the first feeding radiator located can compensate for the antenna gain defects, which can improve the communication performance of the vehicle networking terminal box.
[0016] In the second aspect, the embodiments of the present application provide a vehicle, which comprises a vehicle body, a communication component, a first feeding radiator and a second feeding radiator. The vehicle body comprises a frame and a chassis connected to each other. The communication component is installed in a space enclosed by the frame and the chassis. The first feeding radiator and the second feeding radiator are installed on the frame, the distance between the first feeding radiator and the second feeding radiator is greater than 40 cm, the first feeding radiator and the second feeding radiator are both coupled to the communication component, the working frequency bands of the second feeding radiator and the first feeding radiator are the same, and the first feeding radiator and the second feeding radiator jointly constitute an omnidirectional antenna.
[0017] Through the above arrangement, the first feeding radiator and the second feeding radiator are installed on the frame, which is conducive to avoiding the vehicle body shielding the first feeding radiator and the second feeding radiator. When one feeding radiator has antenna gain defects, the other feeding radiator can compensate for the antenna gain defects, so that the first feeding radiator and the second feeding radiator jointly form an omnidirectional coverage effect, thereby improving the communication performance of the whole vehicle.
[0018] In some embodiments which can include the above-mentioned embodiments, in a plane parallel to the chassis of the vehicle, the first feeding radiator is used as an antenna and transmits and receives signals in a first coverage area, the second feeding radiator is used as an antenna and transmits and receives signals in a second coverage area, and the coverage angle of at least part of the first coverage area and the coverage angle of at least part of the second coverage area are supplementary angles. Since the coverage angle of at least part of the first coverage area and the coverage angle of at least part of the second coverage area are supplementary angles, the first feeding radiator and the second feeding radiator jointly form an omnidirectional coverage effect, thereby improving the communication performance of the whole vehicle.
[0019] In some embodiments which can comprise the above-mentioned embodiments, the distance between the first feeding radiator and the second feeding radiator is greater than or equal to 1 meter. By the above-mentioned arrangement, the antenna gain defect caused by the shielding of the vehicle body is further avoided, so that the first feeding radiator and the second feeding radiator jointly form the effect of omnidirectional coverage, and the communication performance of the whole vehicle is further improved.
[0020] In some embodiments which can comprise the above-mentioned embodiments, the frame comprises a top portion, a first side portion and a second side portion, the top portion extends from the front of the vehicle body to the rear of the vehicle body, the first side portion and the second side portion are arranged along a first direction, the top portion is located between the first side portion and the second side portion, the first direction is parallel to the chassis of the vehicle and perpendicular to the direction from the front of the vehicle body to the rear of the vehicle body. The first feeding radiator is arranged on the top portion, and the second feeding radiator is arranged on the top portion. By arranging the first feeding radiator and the second feeding radiator on the top portion of the vehicle body, one of the two feeding radiators can be used to transmit and receive signals in the front direction of the vehicle, and the other of the two feeding radiators can be used to transmit and receive signals in the rear direction of the vehicle, so that the first feeding radiator and the second feeding radiator jointly form the effect of omnidirectional coverage, and the communication performance of the whole vehicle is improved.
[0021] In some embodiments which can comprise the above-mentioned embodiments, the top portion comprises a front cover, a front windshield, a top structural member, a rear windshield and a rear cover arranged in sequence from the front of the vehicle body to the rear of the vehicle body. The first feeding radiator arranged on the top portion comprises: the first feeding radiator is arranged on one of the front windshield, the top structural member, the rear windshield and the rear cover. The second feeding radiator arranged on the top portion comprises: the second feeding radiator is arranged on one of the front windshield, the top structural member, the rear windshield and the rear cover. Since the first feeding radiator and the second feeding radiator are not arranged on the front cover of the vehicle body, it is beneficial to avoid the influence of the first feeding radiator and the second feeding radiator on the appearance of the whole vehicle, and to avoid the influence on the wind resistance of the whole vehicle.
[0022] In some embodiments which can comprise the above-mentioned embodiments, the frame comprises a top portion, a first side portion and a second side portion, the top portion extends from the front of the vehicle body to the rear of the vehicle body, the first side portion and the second side portion are arranged along a first direction, the top portion is located between the first side portion and the second side portion, the first direction is parallel to the chassis of the vehicle and perpendicular to the direction from the front of the vehicle body to the rear of the vehicle body. The first feeding radiator is arranged on the first side portion, and the second feeding radiator is arranged on the second side portion. By the above-mentioned arrangement, one of the two feeding radiators can be mainly used to transmit and receive signals in the left direction of the vehicle, and the other of the two feeding radiators can be mainly used to transmit and receive signals in the right direction of the vehicle, so that the first feeding radiator and the second feeding radiator jointly form the effect of omnidirectional coverage, and the communication performance of the whole vehicle is improved.
[0023] In some embodiments which can comprise the above-mentioned embodiments, the first side portion comprises, in sequence from the front of the vehicle body to the rear of the vehicle body, a first rearview mirror, a first front door, a first rear door and a first quarter window, and the second side portion comprises, in sequence from the front of the vehicle body to the rear of the vehicle body, a second rearview mirror, a second front door, a second rear door and a second quarter window. The first feeding radiator is arranged on the first side portion, and comprises: the first feeding radiator is arranged on one of the first rearview mirror and the first quarter window. The second feeding radiator is arranged on the second side portion, and comprises: the second feeding radiator is arranged on one of the second rearview mirror and the second quarter window. Through the above arrangement, one of the two feeding radiators can be mainly used for transmitting and receiving signals in the left direction of the vehicle, and the other of the two feeding radiators can be mainly used for transmitting and receiving signals in the right direction of the vehicle, so that the first feeding radiator and the second feeding radiator jointly form an omnidirectional coverage effect, and the communication performance of the whole vehicle is improved.
[0024] In some embodiments which can comprise the above-mentioned embodiments, the frame comprises a top portion, a first side portion and a second side portion, the top portion extends from the front of the vehicle body to the rear of the vehicle body, the first side portion and the second side portion are arranged along a first direction, and the top portion is located between the first side portion and the second side portion, the first direction is parallel to the chassis of the vehicle and perpendicular to the direction from the front of the vehicle body to the rear of the vehicle body. The first feeding radiator is arranged on the top portion, and the second feeding radiator is arranged on the first side portion or the second side portion. Through the above arrangement, one of the two feeding radiators can transmit and receive signals in the left front direction of the vehicle, and the other of the two feeding radiators can transmit and receive signals in the right rear direction of the vehicle, or one of the two feeding radiators can transmit and receive signals in the right front direction of the vehicle, and the other of the two feeding radiators can transmit and receive signals in the left rear direction of the vehicle, so that the first feeding radiator and the second feeding radiator jointly form an omnidirectional coverage effect, and the communication performance of the whole vehicle is improved.
[0025] In some embodiments which can comprise the above-mentioned embodiments, the communication assembly comprises an intelligent cockpit domain controller. Through the arrangement of the first feeding radiator and the second feeding radiator, the network signal strength in the whole vehicle can be improved, and the stability and reliability of the network connection are improved. BRIEF DESCRIPTION OF DRAWINGS
[0026] FIG. 1 is a structural diagram of a vehicle according to an embodiment of the present application;
[0027] FIG. 2 is a structural block diagram of a vehicle according to an embodiment of the present application;
[0028] FIG. 3 is a structural block diagram of a communication assembly according to an embodiment of the present application;
[0029] FIG. 4 is a use scenario diagram of a vehicle according to an embodiment of the present application;
[0030] FIG. 5 is a use scenario diagram of a vehicle according to an embodiment of the present application;
[0031] FIG. 6 is a use scenario diagram of a vehicle according to an embodiment of the present application;
[0032] FIG. 7 is a diagram of a position of a vehicle body relative to a satellite according to an embodiment of the present application;
[0033] FIG. 8 is a diagram of another position of a vehicle body relative to a satellite according to an embodiment of the present application;
[0034] FIG. 9 is a horizontal direction diagram of a low frequency antenna in a vehicle according to an embodiment of the present application;
[0035] FIG. 10 is a horizontal direction diagram of a medium-high frequency antenna in a vehicle according to an embodiment of the present application;
[0036] FIG. 11 is a diagram of a vehicle according to an embodiment of the present application;
[0037] FIG. 12 is a diagram of a vehicle according to an embodiment of the present application;
[0038] FIG. 13 is a diagram of a vehicle according to an embodiment of the present application;
[0039] FIG. 14 is a block diagram of a vehicle according to an embodiment of the present application;
[0040] FIG. 15 is a diagram of a vehicle according to an embodiment of the present application;
[0041] FIG. 16 is a diagram of a vehicle according to an embodiment of the present application;
[0042] FIG. 17 is a diagram of a vehicle according to an embodiment of the present application;
[0043] FIG. 18 is a diagram of a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION
[0044] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.
[0045] Hereinafter, the terms "first", "second", and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features.
[0046] In addition, in the embodiments of the present application, the orientation terms such as "upper", "lower", "left", "right", "horizontal" and "vertical" are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components shown in the drawings.
[0047] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connected / connected" should be understood in a broad sense, which can refer to a mechanical connection relationship or a physical connection relationship, that is, A and B are connected or A and B are connected, which means that there is a fastening component (such as a screw, a bolt, a rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.
[0048] Communication connection: can refer to electrical signal transmission, such as wireless communication connection and / or wired communication connection. Wireless communication connection does not require physical medium and does not belong to the connection relationship that limits the product structure.
[0049] Coupling: can be understood as direct coupling and / or indirect coupling, and "coupling connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be referred to as "electrical connection", which means that the components are in physical contact and electrically conductive; it can also be understood as a form of connection between different components in the circuit structure through the physical line of the copper foil or wire of the printed circuit board (PCB) that can transmit electrical signals; "indirect coupling" can be understood as electrical conduction between two conductors through space / non-contact. In an embodiment, indirect coupling can also be referred to as capacitive coupling, for example, through the coupling between the gap between two conductive parts to form an equivalent capacitor to realize signal transmission.
[0050] Turn on: through the above "electrical connection" or "indirect coupling" to make two or more components conductive or connected to transmit signals / energy, which can be referred to as turn on.
[0051] Radiating body, or antenna element: is a device in an antenna for receiving / sending electromagnetic wave radiation. In some cases, "antenna" is understood in a narrow sense as a radiating body, which changes the waveguide energy from the transmitter into radio waves, or converts radio waves into waveguide energy for radiation and reception of radio waves. The modulated high-frequency current energy (or waveguide energy) generated by the transmitter is transmitted to the transmitting radiating body through the feeder, and is converted into electromagnetic wave energy of a certain polarization through the radiating body and radiated in the desired direction. The receiving radiating body converts the electromagnetic wave energy of a certain polarization from a certain direction in space into modulated high-frequency current energy, which is delivered to the input end of the receiver through the feeder.
[0052] The radiator (or antenna element) can include a conductor with a specific shape and size, such as a wire, or a patch, etc. The application does not limit the specific shape. In an embodiment, the wire radiator can be referred to as a wire antenna. In an embodiment, the wire radiator can be implemented by a conductive bezel, which can also be referred to as a bezel antenna. In an embodiment, the wire radiator can be implemented by a support conductor, which can also be referred to as a support antenna. In an embodiment, the wire diameter (e.g., including thickness and width) of the wire radiator, or the wire antenna, is much smaller (e.g., less than 1 / 16 of the wavelength) than the wavelength (e.g., the dielectric wavelength), and the length can be comparable to the wavelength (e.g., the length is around 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of the wire antenna include a dipole antenna, a half-wave vibrator antenna, a monopole antenna, a loop antenna, and an inverted F antenna (also referred to as IFA). For example, for a dipole antenna, each dipole antenna generally includes two radiating elements, and each element is fed by a feed from the feed end of the radiating element. For example, the inverted F antenna (IFA) can be obtained by adding a ground path to a monopole antenna. The IFA antenna has a feed point and a ground point, and is called an inverted F antenna because its side view is in the shape of an inverted F. In an embodiment, the patch radiator can include a microstrip antenna, or a patch antenna, such as a planar inverted F antenna (also referred to as PIFA). In an embodiment, the patch radiator can be implemented by a planar conductor (such as a conductive patch or a conductive coating, etc.). In an embodiment, the patch radiator can include a conductive patch, such as a copper patch, etc. In an embodiment, the patch radiator can include a conductive coating, such as silver paste, etc. The shape of the patch radiator includes a circle, a rectangle, a ring, etc. The structure of the microstrip antenna generally includes a dielectric substrate, a radiator, and a ground plate, wherein the dielectric substrate is arranged between the radiator and the ground plate.
[0053] The radiators (or antenna elements) can also include slots or gaps formed on the conductors, e.g., forming a closed or semi-closed slot or gap on a grounded conductor plane. In one embodiment, the slotted or gapped radiators can be referred to as slot antennas or gap antennas. In one embodiment, the slot or gap of a slot antenna / gap antenna has a radial dimension (e.g., including width) much smaller than a wavelength (e.g., a dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and a length dimension comparable to a wavelength (e.g., dielectric wavelength) (e.g., around 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In one embodiment, the radiators with closed slots or gaps can be referred to as closed slot antennas. In one embodiment, the radiators with semi-closed slots or gaps (e.g., with openings added to the closed slots or gaps) can be referred to as open slot antennas. In some embodiments, the gap shape is long and thin. In some embodiments, the gap length is about half a wavelength (e.g., dielectric wavelength). In some embodiments, the gap length is about an integer number of wavelengths (e.g., one dielectric wavelength). In some embodiments, the gap can be fed by a transmission line that is connected across one or both sides of the gap, whereby the gap is excited with a radio frequency electromagnetic field and radiates electromagnetic waves into space. In one embodiment, the radiators of a slot antenna or gap antenna can be implemented by a conductive frame that is grounded at both ends, which can also be referred to as a frame antenna; in this embodiment, the slot antenna or gap antenna can be considered to include a linear radiator that is spaced apart from the ground plane and grounded at both ends, thereby forming a closed or semi-closed slot or gap. In one embodiment, the radiators of a slot antenna or gap antenna can be implemented by a bracket conductor that is grounded at both ends, which can also be referred to as a bracket antenna.
[0054] Communication band / operating band: Regardless of the type of antenna, it always operates within a certain frequency range (bandwidth). For example, an antenna that supports the B40 band has an operating band that includes frequencies in the range of 2300-2400 MHz, or in other words, the operating band of the antenna includes the B40 band. The frequency range that meets the index requirements can be considered the operating band of the antenna. The width of the operating band is referred to as the operating bandwidth. The operating bandwidth of an omnidirectional antenna can be 3-5% of the center frequency. The operating bandwidth of a directional antenna can be 5-10% of the center frequency. The bandwidth can be considered a range of frequencies on both sides of the center frequency (e.g., the resonant frequency of a dipole), where the antenna characteristics are within an acceptable range of values at the center frequency.
[0055] The resonant band and the operating band can be the same, or can partially overlap. In one embodiment, one or more resonant bands of an antenna can cover one or more operating bands of the antenna.
[0056] End / point: the "end / point" in the first end / second end / feed end / ground end / feed point / ground point / connection point of the antenna radiator, which cannot be understood as an end point or end that is physically disconnected from other radiators in a narrow sense, but can also be considered as a certain point or a certain section on a continuous radiator. In an embodiment, the "end / point" can include a connection / coupling area on the antenna radiator that is coupled to other conductive structures, for example, the feed end / feed point can be a coupling area (for example, an area facing a part of the feed circuit) on the antenna radiator that is coupled to a feed structure or a feed circuit, and for another example, the ground end / ground point can be a connection / coupling area on the antenna radiator that is coupled to a ground structure or a ground circuit.
[0057] The definitions such as collinear, coaxial, coplanar, symmetric (for example, axisymmetric or central symmetric), parallel, perpendicular, same (for example, same length, same width, etc.), and the like mentioned in the embodiments of the present application are for the current process level, not the absolute strict definition in the mathematical sense. There can be a deviation less than a predetermined threshold (for example, 1 mm, 0.5 m, or 0.1 mm) in the line width direction between the edges of two radiating branches or two antenna units that are collinear. There can be a deviation less than a predetermined threshold in the direction perpendicular to the coplanar plane between the edges of two radiating branches or two antenna units that are coplanar. There can be a deviation of a predetermined angle between two antenna units that are parallel or perpendicular to each other. In an embodiment, the predetermined threshold can be less than or equal to a threshold of 1 mm, for example, the predetermined threshold can be 0.5 mm, or can be 0.1 mm. In an embodiment, the predetermined angle can be an angle within a range of ±10°, for example, the predetermined angle deviation is ±5°.
[0058] The same operating frequency band (also referred to as the same frequency) mentioned in the embodiments of the present application can be understood as any one of the following two cases:
[0059] 1) The operating frequency band of the first antenna and the operating frequency band of the second antenna include the same communication frequency band. In an embodiment, the first antenna and the second antenna both serve as subunits in a MIMO antenna system. For example, the operating frequency band of the first antenna and the operating frequency band of the second antenna both include the sub6G frequency band in 5G.
[0060] 2) The operating frequency band of the first antenna and the operating frequency band of the second antenna partially overlap in frequency. For example, the operating frequency band of the first antenna includes B35 (1.85-1.91 GHz) in LTE, and the operating frequency band of the second antenna includes B39 (1.88-1.92 GHz) in LTE.
[0061] Antenna pattern: also called radiation pattern. It refers to the relative field strength (normalized modulus) of the antenna radiation field at a certain distance from the antenna changes with the direction of the pattern, usually represented by two mutually perpendicular plane patterns through the maximum radiation direction of the antenna.
[0062] Antenna pattern usually has multiple radiation beams. The radiation beam with the maximum intensity is called the main lobe, and the remaining radiation beams are called side lobes or side lobes. In the side lobe, the side lobe in the opposite direction of the main lobe is also called the back lobe.
[0063] Antenna gain: used to characterize the degree of concentration of input power radiation by the antenna. Generally, the narrower the main lobe of the antenna pattern, the smaller the side lobe, and the higher the antenna gain.
[0064] Referring to FIGS. 1 and 2, the vehicle provided by the embodiments of the present application includes a communication assembly 10 and a vehicle body 20. The vehicle body 20 includes a frame 201 and a chassis 202 connected to each other. The chassis 202 can be used to support and mount the frame 201 to form the overall shape of the vehicle.
[0065] The communication assembly 10 is mounted in the space surrounded by the frame 201 and the chassis 202 (such as Q in FIG. 1), which can be used for driving, riding, and storage (as shown in FIG. 1, the communication assembly 10 can be located in the trunk surrounded by the rear cover of the vehicle body 20). Alternatively, the communication assembly 10 can also be mounted on the frame 201 (for example, the frame 201 can include a spoiler, which can be a hollow structure, and the communication assembly can be located inside the spoiler of the frame 201).
[0066] However, since the material of the vehicle body 20 includes metal, in some weak field environments or specific signal environments, the vehicle body 20 has a certain shielding effect on the antenna of the communication assembly 10, resulting in gain defects in some angles of the antenna pattern of the communication assembly 10, and the antenna gain defect exists in the overall vehicle pattern, and the communication performance of the overall vehicle is poor. For example, the OTA (Over-the-Air Technology) performance of the vehicle is poor, or the network signal strength inside the vehicle is weak.
[0067] Therefore, as shown in FIG. 2, the vehicle in the embodiments of the present application can include a first feed radiation body 31. The first feed radiation body 31 is mounted on the frame 201. It can be understood that the first feed radiation body 31 can be mounted inside the frame 201, or the first feed radiation body 31 can be mounted on the outer surface of the frame 201, or the first feed radiation body 31 can be mounted on the inner surface of the frame 201.
[0068] For example, when the first feeding radiator 31 is arranged on the metal part of the vehicle body 20, the first feeding radiator 31 can be mounted on the vehicle body 20 in a manner of adsorption, plug-in, threaded connection, etc., so that the first feeding radiator 31 can be used as a shark fin antenna, a luggage rack antenna, etc. In this case, the first feeding radiator 31 can be mounted on the outer surface of the frame 201. When the first feeding radiator 31 is arranged on the glass of the frame 201, a metal plating film can be arranged on the surface of the glass substrate, so that the first feeding radiator 31 can be located on the outer surface or the inner surface of the frame 201; or a metal plating film can also be arranged between the two glass substrates, so that the first feeding radiator 31 can be arranged inside the frame 201. Further, when the first feeding radiator 31 is mounted inside the frame 201 or on the inner surface of the frame 201, the first feeding radiator 31 can be mounted on the insulating part of the frame 201, such as a plastic part or glass. Through the above arrangement, it is beneficial to avoid the metal part in the vehicle body 20 from shielding the first feeding radiator 31, so as to affect the performance of the first feeding radiator 31.
[0069] Of course, the first feeding radiator 31 can also be mounted on the vehicle body 20 in other manners, and the mounting form of the first feeding radiator 31 is not limited in the embodiments of the present application.
[0070] In the embodiments of the present application, the communication assembly 10 can include a plurality of feeding radiators 14. The working frequency bands of the plurality of feeding radiators 14 are at least partially the same. For example, the working frequency bands of a part of the plurality of feeding radiators 14 can be low-middle-high frequency, and the working frequency bands of another part of the plurality of feeding radiators 14 can be middle-high frequency. The number of the plurality of feeding radiators 14 is greater than the number of the first feeding radiator 31. Through the above arrangement, when the vehicle communicates, the plurality of feeding radiators 14 of the communication assembly 10 can be mainly used for communication, and the first feeding radiator 31 can be used to compensate for the antenna gain defects of the plurality of feeding radiators 14.
[0071] Among them, at least one of the plurality of feeding radiators 14 is a second feeding radiator 32, and the working frequency bands of the second feeding radiator 32 and the first feeding radiator 31 are the same. For example, the first feeding radiator 31 can be coupled with the communication assembly 10, so that the second feeding radiator 32 and the first feeding radiator 31 can support the same communication function. The distance between the second feeding radiator 32 and the at least one first feeding radiator 31 is greater than 40 cm. Through the above arrangement, a certain distance is provided between the first feeding radiator 31 and the second feeding radiator 32, so that the first feeding radiator 31 and the second feeding radiator 32 can be relatively dispersedly distributed on the vehicle body 20, which is beneficial to the radiation uniformity of the antenna composed of the first feeding radiator 31 and the second feeding radiator 32 in the directivity diagram.
[0072] The communication assembly 10 further comprises a switching module 12 and a communication module 11. The plurality of feed radiators 14 can be connected to the communication module 11 through corresponding radio frequency channels 13. The common port 12a of the switching module 12 is coupled to the communication module 11, the first port 12b of the switching module 12 is coupled to the second feed radiator 32, and the second port 12c of the switching module 12 is coupled to the first feed radiator 31 through a cable 40. The common port 12a of the switching module 12 can be coupled to the communication module through the radio frequency channel 13, and the cable 40 can be connected to the first feed radiator 31 through a corresponding connector 50 (for example, a FAKRA (FAchKReis Automobil) connector).
[0073] In some embodiments, the switching module 12 can comprise a mechanical switching switch, for example, a single-pole three-throw switch, and the three switching terminals of the single-pole three-throw switch are respectively used to connect the communication module 11, the first feed radiator 31 and the second feed radiator 32. Alternatively, in some embodiments, the switching module 12 can further comprise an electronic switching switch, for example, three switching channels composed of switching tubes, and the three switching channels are respectively used to connect the communication module 11, the first feed radiator 31 and the second feed radiator 32.
[0074] Through the above arrangement, when the second feed radiator 32 has an antenna gain defect, the first feed radiator 31 can compensate for the antenna gain defect, which is beneficial to avoid the antenna gain defect caused by the shielding of the vehicle body 20 and improve the communication performance of the whole vehicle.
[0075] In some examples, the communication assembly 10 can comprise a telematics box (Tbox). The telematics box can be connected to the vehicle host to enable the vehicle host to communicate with user mobile terminals, satellites, vehicles, roadside devices, communication base stations and other devices through the telematics box. By arranging the first feed radiator 31 and the second feed radiator 32, when the second feed radiator 32 has an antenna gain defect, the first feed radiator 31 can compensate for the antenna gain defect, which can improve the communication performance of the telematics box. For example, the phone call can be improved from being unable to call out to successfully calling out, and the vehicle audio and video entertainment system can be changed from being stuck to being smooth.
[0076] In some embodiments, the terminal box of the Internet of Vehicles can include a cellular antenna to realize information interaction with a Telematics Service Platform (TSP) outside the vehicle through a cellular base station. In some embodiments, the terminal box of the Internet of Vehicles can also include a global navigation satellite system (GNSS) antenna, hereinafter referred to as a satellite antenna, to realize Beidou Navigation Satellite System (BDS) navigation or Global Positioning System (GPS) navigation, and accordingly, the vehicle-specific microcontroller can realize the positioning and navigation functions of the vehicle through a telematics processor. Alternatively, in some embodiments, the terminal box of the Internet of Vehicles can include a V2X (Vehicle-to-everything) antenna to realize communication with other things. Alternatively, in some embodiments, the terminal box of the Internet of Vehicles can also include a geosynchronous orbit satellite system (GEO) to realize satellite voice and data communication.
[0077] In some embodiments, the first feeding radiator 31 and the second feeding radiator 32 can jointly constitute an omnidirectional antenna. Here, the "omnidirectional antenna" can be understood as uniformly radiating from 0° to 360° on the horizontal pattern, and having at least partial radiation on the vertical pattern. For example, when the first feeding radiator 31 and the second feeding radiator 32 are both used as cellular antennas or V2X antennas, the vertical pattern shows uniform radiation from 70° to 90°; when the first feeding radiator 31 and the second feeding radiator 32 are both used as satellite 80 antennas, the vertical pattern shows uniform radiation from 0° to 80°. Through the above arrangement, the first feeding radiator 31 and the second feeding radiator 32 can jointly form an omnidirectional coverage effect, improving the communication performance of the whole vehicle.
[0078] In some embodiments, as shown in FIG. 2 and FIG. 3, the communication module 11 can have an initial working state and a first working state, and the communication module 11 can include a control unit 115, which can be configured to control the switching module 12 to couple the communication module 11 and the second feeding radiator 32 in the initial working state. The control unit 115 can also be configured to control the switching module 12 to couple the communication module 11 and the first feeding radiator 31 in the first working state. In this case, the control unit 115 of the communication module 11 can send a control signal to the switching module 12 to control the first port 12b and the second port 12c of the switching module 12 to be connected or disconnected, so as to couple the communication module 11 and the second feeding radiator 32, or couple the communication module 11 and the first feeding radiator 31.
[0079] For example, in the communication process of the vehicle, in the initial working state, the control unit 115 can control the first port 12b of the switching module 12 to be connected, and the control unit 115 can control the second port 12c of the switching module 12 to be disconnected, so as to couple the communication module 11 and the second feeding radiator 32. In the first working state, the control unit 115 can control the second port 12c of the switching module 12 to be connected, and the control unit 115 can control the first port 12b of the switching module 12 to be disconnected, so as to couple the communication module 11 and the first feeding radiator 31. Through the above arrangement, when the vehicle is communicating, the second feeding radiator 32 is mainly used for communication, and the first feeding radiator 31 is used to compensate for the gain defect of the second feeding radiator 32, thereby improving the communication performance of the vehicle.
[0080] In some embodiments, the communication module 11 can further include a detection unit 113, which is also configured to obtain the signal strength of the first feeding radiator 31 and the signal strength of the second feeding radiator 32. In this case, the detection unit 113 can be coupled with the control unit 115, and the communication module 11 can obtain the radio frequency signals from the first feeding radiator 31 and the second feeding radiator 32, so that the detection unit 113 obtains the signal strength of the first feeding radiator 31 and the signal strength of the second feeding radiator 32. The communication module 11 is configured to switch from the initial working state to the first working state when the signal strength of the second feeding radiator 32 is less than a preset value, and the signal strength of the second feeding radiator 32 is less than the signal strength of the first feeding radiator 31.
[0081] Here, the "preset value" can be understood as the minimum value of the signal strength that the second feeding radiator 32 can guarantee the stability of the communication connection. The signal strength can be represented by the parameter RSRP (Reference Signal Receiving Power). RSRP is the average value of the signal power received on all REs (resource particles) carrying the cell reference signal on the specified measurement frequency band. The greater the value of RSRP, the stronger the effective signal received by the antenna.
[0082] In some examples, as shown in FIG. 4, in a weak field environment or a network-free environment, such as a poorly signal underground garage, a tunnel, a rural highway, a remote area, etc. (for example, RSRP is less than -105 dBm), the signal strength of the second feeding radiator 32 is poor. Alternatively, in some other examples, when the direction of arrival of the base station signal is blocked by the vehicle body 20, it will also cause the signal strength of the second feeding radiator 32 to be poor. For example, as shown in FIG. 5, when the second feeding radiator 32 is arranged in the trunk surrounded by the rear cover of the vehicle body 20, and the direction of arrival of the base station signal points to the front of the vehicle, the signal strength of the second feeding radiator 32 is poor (as shown by the dashed line in FIG. 5, the signal strength of the frontward arrival signal of the vehicle is poor). Of course, the poor signal strength of the second feeding radiator 32 is not limited to the above two cases, and the embodiments of the present application do not limit this.
[0083] In the initial working state, the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32, and the detection unit 113 can obtain the signal strength of the second feeding radiator 32. When the signal strength received by the second feeding radiator 32 is poor, the signal strength of the second feeding radiator 32 obtained by the detection unit 113 is less than the preset value. The control unit 115 controls the switching module 12 to couple the communication module 11 and the first feeding radiator 31, and the detection unit 113 can obtain the signal strength of the first feeding radiator 31. When the signal strength of the second feeding radiator 32 is less than the signal strength of the first feeding radiator 31, the communication module 11 switches from the initial working state to the first working state, and the control unit 115 controls the switching module 12 to continue to couple the communication module 11 and the first feeding radiator 31.
[0084] Through the above setting, since the signal strength of the first feeding radiator 31 is stronger than the signal strength of the second feeding radiator 32, in the first working state, the communication assembly 10 communicates through the first feeding radiator 31, which is conducive to improving the communication performance of the whole vehicle.
[0085] In some other examples, the communication module 11 further has a second working state, and the control unit 115 is further configured to control the switching module 12 to couple the communication module 11 and the second feeding radiator 32 in the second working state. In this case, the communication module 11 is further configured to switch from the first working state to the second working state when the signal strength of the second feeding radiator 32 is less than the preset value and the signal strength of the second feeding radiator 32 is greater than the signal strength of the first feeding radiator 31.
[0086] As described in the above examples, when the signal strength of the second feeding radiator 32 obtained by the detection unit 113 is less than the preset value, the control unit 115 controls the switching module 12 to couple the communication module 11 and the first feeding radiator 31, and the detection unit 113 can obtain the signal strength of the first feeding radiator 31. When the signal strength of the second feeding radiator 32 is greater than the signal strength of the first feeding radiator 31, the communication module 11 switches from the first working state to the second working state, and the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32.
[0087] In some other examples, as shown in FIG. 6, in a medium field environment (for example, RSRP is greater than -105 dBm), and the direction of arrival of the base station signal has multiple directions, the base station signal can not be blocked by the vehicle body 20. At this time, in the initial working state, the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32, and the detection unit 113 can obtain the signal strength of the second feeding radiator 32. Since the signal strength of the second feeding radiator 32 obtained by the communication module 11 is greater than or equal to the preset value, the control unit 115 controls the switching module 12 to continue to couple the communication module 11 and the second feeding radiator 32. Through the above setting, it is beneficial to exert the advantages of good OTA performance of the multiple feeding radiators 14 inside the communication assembly 10 and the MIMO (Multiple-input Multiple-output) advantage, and to guarantee the low latency and high efficiency of communication.
[0088] Based on the above examples, the first feeding radiator 31 and the second feeding radiator 32 can be used as cellular antennas, so that the first feeding radiator 31 and the second feeding radiator 32 can communicate with the base station. Alternatively, the first feeding radiator 31 and the second feeding radiator 32 can be used as satellite 80 antennas, so that the first feeding radiator 31 and the second feeding radiator 32 can communicate with the satellite 80.
[0089] In some examples, the communication module 11 further comprises a detection unit 113 configured to obtain relative pose information between the satellite 80 and the vehicle body 20, the relative pose information being indicative of a position and an attitude of the vehicle body 20 relative to the satellite 80 in a plane parallel to a vehicle bottom surface.
[0090] In some examples, the communication module 11 further comprises a detection unit 113 configured to obtain relative pose information between the satellite 80 and the vehicle body 20, the relative pose information being indicative of a position and an attitude of the vehicle body 20 relative to the satellite 80 in a plane parallel to a vehicle bottom surface.
[0091] Based on the above arrangement, in the plane parallel to the vehicle bottom surface, the first feeding radiator 31 can be used as an antenna and transceive signals in the first coverage area M1. In some examples, the vehicle bottom surface can be understood as a plane on which the chassis 202 of the vehicle is located, or the plane parallel to the vehicle bottom surface can also be understood as a plane parallel to a driving plane of the vehicle. In some examples, the coverage area can be understood as, when the antenna is a cellular antenna, a gain of the antenna in the coverage area can be greater than -5dBi, and a minimum gain value of the antenna in the coverage area is -8dBi; when the antenna is a satellite antenna, a gain of the antenna in the coverage area can be greater than -5dBic.
[0092] The communication module 11 is configured to switch from the initial working state to the first working state according to the relative pose information. For example, the first feeding radiator 31 can be arranged on the front windshield 212 of the vehicle body 20, the first coverage area M1 can be an area in front of the vehicle body 20, and the coverage angle of at least part of the first coverage area M1 can be 90°. Here, the detection unit 113 can obtain the position of the satellite 80 relative to the first feeding radiator 31 according to the relative pose information. When the orthographic projection of the satellite 80 in the plane parallel to the vehicle bottom surface is located in the first coverage area M1, the first feeding radiator 31 transmits and receives signals in the first coverage area M1.
[0093] In the initial working state, the control unit 115 controls the switching module 12 to couple the communication module 11 and the second feeding radiator 32, and the detection unit 113 can obtain the current latitude and longitude information of the vehicle, and further obtain the azimuth angle B of the vehicle body 20. That is, the position and pose of the satellite 80 relative to the vehicle body 20 in the plane parallel to the bottom surface of the vehicle body 20 can be obtained, that is, the detection unit 113 can obtain the relative pose information. For example, in the initial working state, the satellite 80 is located in front of the vehicle body 20 in the plane parallel to the bottom surface of the vehicle body 20 (that is, the azimuth angle B of the vehicle body 20 relative to the satellite 80 is 0°), and the orthographic projection of the satellite 80 in the plane parallel to the vehicle bottom surface is located in the first coverage area M1. At this time, the communication module 11 switches from the initial working state to the first working state according to the relative pose information, and the control unit 115 controls the switching module 12 to couple the communication module 11 and the first feeding radiator 31, so that the communication assembly 10 communicates with the satellite 80 through the first feeding radiator 31.
[0094] Through the above arrangement, in the first working state, the communication assembly 10 communicates through the first feeding radiator 31, which is beneficial to improve the communication performance of the whole vehicle.
[0095] For example, the second feeding radiator 32 can be arranged on one side of the rear cover 215 of the vehicle body 20, and in the plane parallel to the vehicle bottom surface, the second feeding radiator 32 is used as an antenna and transmits and receives signals in the second coverage area M2. In some examples, the communication module 11 can also have a second working state, and the control unit 115 can also be configured to control the switching module 12 to couple the communication module 11 and the second feeding radiator 32 in the second working state. The communication module 11 can also be configured to switch from the first working state to the second working state according to the relative pose information. The second coverage area M2 can be an area behind the vehicle body 20, and the coverage angle of at least part of the second coverage area M2 can be, for example, 270°. Through the above arrangement, the second coverage area M2 and the first coverage area M1 can form an omnidirectional coverage, so as to improve the communication performance of the vehicle.
[0096] With the driving of the vehicle, the position and the attitude of the vehicle relative to the satellite 80 also change. The detection unit 113 can acquire the current latitude and longitude information of the vehicle, and further acquire the azimuth angle B of the vehicle body 20. In the plane parallel to the bottom surface of the vehicle body 20, the satellite 80 is located at the right of the vehicle body 20 (i.e., the azimuth angle B of the vehicle body 20 relative to the satellite 80 is 90 degrees), and the satellite 80 can be transformed from being located in the first coverage area M1 to being located in the second coverage area M2. At this time, the communication module 11 is controlled by the control unit 115 to switch the coupling between the communication module 11 and the second feed radiator 32 according to the relative position and attitude information, so that the communication assembly 10 communicates with the satellite 80 through the second feed radiator 32.
[0097] Based on the above embodiment, the first feed radiator 31 and the second feed radiator 32 can both be used as the antenna of the satellite 80, so that the first feed radiator 31 and the second feed radiator 32 can communicate with the satellite 80.
[0098] FIG. 9 is a horizontal directional diagram of a low band (LB) antenna in a vehicle according to an embodiment of the present application, and FIG. 10 is a horizontal directional diagram of a mid & high band (MHB) antenna in a vehicle according to an embodiment of the present application. The dashed lines in FIGS. 9 and 10 represent the radiation direction when the vehicle communicates only using the plurality of feed radiators 14 in the communication assembly 10, and the solid lines in FIGS. 9 and 10 represent the radiation direction when the vehicle communicates using the plurality of feed radiators 14 in the communication assembly 10 and the first feed radiator 31. When the vehicle communicates only using the plurality of feed radiators 14 in the communication assembly 10, and the communication assembly 10 is arranged on one side of the tail of the vehicle, the front of the vehicle (the range of the azimuth angle B is 90° to 270°) has an antenna gain defect due to the shielding effect of the vehicle body 20. As shown in FIG. 9, the antenna gain curve of the low band antenna is near the azimuth angle B 225° (e.g., at position 1 in FIG. 9), and the minimum gain of the antenna is only -23 dBi. As shown in FIG. 10, the antenna gain curve of the mid & high band antenna is near the azimuth angle B 196° (e.g., at position 1 in FIG. 10), and the minimum gain of the antenna is only -21 dBi. When the vehicle communicates using the plurality of feed radiators 14 in the communication assembly 10 and the first feed radiator 31, as shown in FIG. 9, the antenna gain of the low band antenna near the azimuth angle B 225° (e.g., at position 2 in FIG. 9) is approximately -8 dBi, and as shown in FIG. 10, the antenna gain of the mid & high band antenna near the azimuth angle B 196° (e.g., at position 2 in FIG. 10) is approximately -7 dBi.
[0099] Further, when the vehicle only uses the plurality of feed radiators 14 in the communication assembly 10 to communicate, and the communication assembly 10 is arranged at one side of the rear of the vehicle, the front of the vehicle (the range of the azimuth angle B is 90° to 270°) has an antenna dead spot. For example, the proportion of the antenna dead spot of the low-frequency antenna in the plurality of feed radiators 14 of the communication assembly 10 can be 25 / 180, and the proportion of the antenna dead spot of the medium-high-frequency antenna can be 20 / 180. When the communication assembly 10 in the vehicle communicates through the first feed radiator 31, the antenna dead spot can be improved.
[0100] Further, when the vehicle only uses the plurality of feed radiators 14 in the communication assembly 10 to communicate, and the communication assembly 10 is arranged at one side of the rear of the vehicle, the minimum EIRP (Equivalent Isotropic Radiated Power) of the whole vehicle is low, wherein the minimum EIRP of the low-frequency antenna can be -0.5 dBm, and the minimum EIRP of the medium-high-frequency antenna can be 0.6 dBm. When the communication assembly 10 in the vehicle communicates through the first feed radiator 31, the minimum EIRP of the low-frequency antenna can be 11.7 dBm, and the minimum EIRP of the medium-high-frequency antenna can be 9.9 dBm.
[0101] In summary, the first feed radiator 31 and the second feed radiator 32 can jointly form an omnidirectional coverage effect, thereby improving the communication performance of the whole vehicle.
[0102] In some embodiments, part of the plurality of feed radiators 14 can form a main diversity antenna, and part of the plurality of feed radiators 14 can form at least one diversity antenna. The first feed radiator 31 and the main diversity antenna can be coupled to the communication module 11 through the switching module 12. The main diversity antenna can have the functions of receiving and transmitting signals, and the diversity antenna can have the function of receiving signals. Through the above arrangement, when the communication module 11 is coupled to the main diversity antenna, the communication module 11 can receive and transmit signals through the main diversity antenna, and when the communication module 11 is coupled to the first feed radiator 31, the communication module 11 can receive and transmit signals through the first feed radiator 31.
[0103] In some embodiments, in a plane parallel to the bottom surface of the vehicle, the first feed radiator 31 is used as an antenna and transceives signals in the first coverage area M1, and the second feed radiator 32 is used as an antenna and transceives signals in the second coverage area M2. The coverage angle of the first coverage area M1 is smaller than that of the second coverage area M2.
[0104] Exemplarily, the first feeding radiator 31 can be used as a first antenna, the first antenna can be a directional high-gain antenna, and the first antenna can transceive signals within the first coverage area M1. Similarly, the second feeding radiator 32 can be used as a second antenna, the second antenna can be a directional high-gain antenna, and the second antenna can transceive signals within the second coverage area M2.
[0105] In some examples, the coverage angle of the coverage area can be adjusted by adjusting the feeding radiator 14. For example, the feeding radiator 14 can be beamformed; or, a metal piece can be arranged on the vehicle body 20 and can reflect the radiation beam of the feeding radiator 14; or, the installation angle of the feeding radiator 14 itself can also be changed.
[0106] Since the coverage angle of the first coverage area M1 is smaller than the coverage angle of the second coverage area M2, when the vehicle communicates, the second feeding radiator 32 is mainly used for communication, and the first feeding radiator 31 is used to compensate for the gain defect of the second feeding radiator 32, thereby improving the communication performance of the whole vehicle.
[0107] Alternatively, in some other examples, the second feeding radiator 32 can be used as a second antenna, the second antenna can also be an omnidirectional antenna, and the second antenna can transceive signals within the second coverage area M2. At this time, the coverage angle of the first coverage area M1 is smaller than the coverage angle of the second coverage area M2.
[0108] In some embodiments, the distance between the first feeding radiator 31 and the second feeding radiator 32 can be greater than or equal to 1 meter. For example, the distance between the first feeding radiator 31 and the second feeding radiator 32 can be 1 meter, 1.2 meters, 1.3 meters, or 1.5 meters. Through the above setting, it is beneficial to further avoid the antenna gain defect caused by the shielding of the vehicle body 20, so that the first feeding radiator 31 and the second feeding radiator 32 jointly form the effect of omnidirectional coverage, and further improve the communication performance of the whole vehicle.
[0109] As shown in FIG. 11, the frame 201 can include a top portion 21, a first side portion 22, and a second side portion 23, the top portion 21 extends from the front of the vehicle body 20 to the rear of the vehicle body 20, the first side portion 22 and the second side portion 23 are arranged along a first direction, the top portion 21 is between the first side portion 22 and the second side portion 23, the first direction Y is parallel to the chassis 202 of the vehicle, and is perpendicular to a direction from the front of the vehicle body 20 to the rear of the vehicle body 20. For example, the direction from the front of the vehicle body 20 to the rear of the vehicle body 20 can be the X direction in FIG. 11.
[0110] For example, the roof 21 can include, in sequence from the front of the vehicle body 20 to the rear of the vehicle body 20, a front cover 211, a front windshield 212, a roof structure 213, a rear windshield 214, and a rear cover 215.
[0111] In some examples, the communication assembly 10 can be located inside the roof structure 213. For example, as shown in FIG. 11, the roof structure 213 can include, in sequence from the front of the vehicle body 20 to the rear of the vehicle body 20, a first cross beam 2131, a sunroof glass 2135, and a spoiler 2136, and can further include a first luggage rack 2137 and a second luggage rack 2138 arranged along the first direction Y, the sunroof glass 2135 can be located between the first luggage rack 2137 and the second luggage rack 2138, and the first luggage rack 2137 and the second luggage rack 2138 can both be located between the first cross beam 2131 and the spoiler 2136. The communication assembly 10 can be arranged inside the spoiler 2136, or the communication assembly 10 can be arranged inside a metal plate located between the sunroof glass 2135 and the spoiler 2136.
[0112] In some other examples, the communication assembly 10 can also be located on one side of the rear cover 215. Based on the above arrangement, the first feed radiation body 31 can be arranged on the front windshield 212 or the roof structure 213. In some embodiments, the structure of the roof structure 213 can be as described above, and will not be described again here. When the first feed radiation body 31 is arranged on the roof structure 213 in the above-described embodiments, the first feed radiation body 31 can be located on one of the first cross beam 2131, the sunroof glass 2135, the first luggage rack 2137, the second luggage rack 2138, and the spoiler 2136.
[0113] Alternatively, in some other embodiments, as shown in FIG. 12, the structure of the roof structure 213 can further include, in sequence from the front of the vehicle body 20 to the rear of the vehicle body 20, a first cross beam 2131, a second cross beam 2132, and a third cross beam 2133. The first cross beam 2131 can be an A-pillar cross beam, the second cross beam 2132 can be a B-pillar cross beam, and the third cross beam 2133 can be a C-pillar cross beam. The roof structure 213 can further include a metal plate arranged between the first cross beam 2131 and the second cross beam 2132, and a metal plate arranged between the second cross beam 2132 and the third cross beam 2133. When the first feed radiation body 31 is arranged on the roof structure 213, the first feed radiation body 31 can be located on one of the first cross beam 2131, the second cross beam 2132, and the third cross beam 2133.
[0114] Of course, the mounting position of the first feed radiation body 31 is not limited to the above-described embodiments, and the embodiments of the present application do not specifically limit the mounting position of the first feed radiation body 31.
[0115] In summary, through the distributed arrangement of the first feeding radiator 31 and the second feeding radiator 32, one of the two feeding radiators 14 transmits and receives signals in the vehicle forward direction, and the other of the two feeding radiators 14 transmits and receives signals in the vehicle backward direction. When the second feeding radiator 32 has an antenna gain defect, the first feeding radiator 31 can compensate for the antenna gain defect, which is beneficial to avoid the antenna gain defect caused by the shielding of the vehicle body 20 and improve the communication performance of the whole vehicle.
[0116] The embodiment of the present application also provides another vehicle. Referring to FIGS. 13 and 14, the vehicle can include a first feeding radiator 31 and a second feeding radiator 32. The first feeding radiator 31 and the second feeding radiator 32 can be mounted on the frame 201. As described in the above embodiment, the first feeding radiator 31 and the second feeding radiator 32 are mounted on the frame 201, which can be understood as that the first feeding radiator 31 and the second feeding radiator 32 can be mounted inside the frame 201, or the first feeding radiator 31 and the second feeding radiator 32 can be mounted on the outer surface of the frame 201, or the first feeding radiator 31 and the second feeding radiator 32 can be mounted on the inner surface of the frame 201. The mounting mode of the first feeding radiator 31 and the second feeding radiator 32 can be as described in the above embodiment, which will not be described here. By mounting the first feeding radiator 31 and the second feeding radiator 32 on the frame 201, it is beneficial to avoid the shielding of the first feeding radiator 31 and the second feeding radiator 32 by the vehicle body 20.
[0117] The first feeding radiator 31 and the second feeding radiator 32 are both coupled with the communication assembly 10. Here, the feeding point of the first feeding radiator 31 and the feeding point of the second feeding radiator 32 can be coupled with the radio frequency chip in the communication assembly 10. The second feeding radiator 32 and the first feeding radiator 31 have the same working frequency band, and the first feeding radiator 31 and the second feeding radiator 32 jointly constitute an omnidirectional antenna. The omnidirectional antenna can be understood as described in the above embodiment, which will not be described here.
[0118] The distance between the first feeding radiator 31 and the second feeding radiator 32 is greater than 40 cm. Through the above arrangement, the first feeding radiator 31 and the second feeding radiator 32 have a certain distance, so that the first feeding radiator 31 and the second feeding radiator 32 can be relatively dispersedly distributed on the vehicle body 20, which is beneficial to the uniform radiation of the antenna constituted by the first feeding radiator 31 and the second feeding radiator 32 in the directional diagram.
[0119] Through the above arrangement, when one feeding radiator 14 has an antenna gain defect, the other feeding radiator 14 can compensate for the antenna gain defect, so that the first feeding radiator 31 and the second feeding radiator 32 jointly form an omnidirectional coverage effect, thereby improving the communication performance of the whole vehicle.
[0120] For example, in some examples, the communication assembly 10 can include a cockpit domain controller (CDC), the first feeding radiator 31 can be coupled with a communication module 11 in the cockpit domain controller through the first radio frequency channel 13, and the second feeding radiator 32 can be coupled with the communication module 11 in the cockpit domain controller through the second radio frequency channel 13. The cockpit domain controller can be connected with the vehicle Internet terminal box through the cable 40, so that the cockpit domain controller can realize data interaction with the vehicle Internet terminal box. Referring to FIG. 14, the cockpit domain controller can further include other components. For example, the cockpit domain controller can further include a GNSS (Global Navigation Satellite System) antenna and a GNSS module, the GNSS antenna is coupled with the GNSS module to realize positioning of the whole vehicle. In addition, the cockpit domain controller can further include a Wi-Fi / BT module, which can be used to realize communication connection with the vehicle internal audio system, display system, etc. By arranging the first feeding radiator 31 and the second feeding radiator 32, the network signal strength in the whole vehicle can be improved, and the stability and reliability of the network connection can be improved.
[0121] Further, the cockpit domain controller can also be coupled with an ultra-wideband (UWB) module, and the key located near the vehicle body 20 can be identified through the first feeding radiator 31 and the second feeding radiator 32, or the living body located in the vehicle body 20 can be detected through the first feeding radiator 31 and the second feeding radiator 32, so that the vehicle can realize human-computer interaction inside and outside the vehicle. For example, when the key or the living body approaches the vehicle, the vehicle can be unlocked and the engine can be started.
[0122] In some embodiments, in a plane parallel to the chassis 202 of the vehicle, the first feeding radiator 31 can be used as an antenna and transceive signals in the first coverage area M1, the second feeding radiator 32 can be used as an antenna and transceive signals in the second coverage area M2, and the coverage angle of at least part of the first coverage area M1 and the coverage angle of at least part of the second coverage area M2 can be complementary angles. Here, the "coverage area" can be understood as follows: when the antenna is a cellular antenna, the gain of the antenna in the coverage area can be above -5dBi, and the minimum gain value of the antenna in the coverage area is -8dBi; when the antenna is a satellite 80 antenna, the gain of the antenna in the coverage area can be above -5dBic.
[0123] Exemplarily, the first feeding radiator 31 can be used as a first antenna, the first antenna can be a directional high-gain antenna, and the first antenna can transceive signals within the first coverage area M1. Similarly, the second feeding radiator 32 can be used as a second antenna, the second antenna can be a directional high-gain antenna, and the second antenna can transceive signals within the second coverage area M2.
[0124] For example, the coverage angle of the first coverage area can be 180°, the coverage angle of the second coverage area M2 can be 180°, and the two coverage areas can cover 360° after superposition. Alternatively, the coverage angle of the first coverage area can be 180°, the coverage angle of the second coverage area M2 can be 270°, the first coverage area M1 and the second coverage area M2 can have an overlapping area, and the two coverage areas can cover 360° after superposition. Since at least part of the coverage angle of the first coverage area M1 and at least part of the coverage angle of the second coverage area M2 are supplementary angles, the first feeding radiator 31 and the second feeding radiator 32 together form the effect of omnidirectional coverage, thereby improving the communication performance of the whole vehicle.
[0125] Alternatively, in some examples, the first feeding radiator 31 can be used as a first antenna, and the first antenna can also be an omnidirectional antenna. Similarly, the second feeding radiator 32 can be used as a second antenna, and the second antenna can also be an omnidirectional antenna. At this time, the first antenna and the second antenna can also jointly constitute an omnidirectional antenna.
[0126] In some embodiments, the distance between the first feeding radiator 31 and the second feeding radiator 32 can be greater than or equal to 1 meter. For example, the distance between the first feeding radiator 31 and the second feeding radiator 32 can be 1 meter, 1.2 meters, 1.3 meters, or 1.5 meters. Through the above setting, it is beneficial to further avoid the antenna gain defect caused by the shielding of the vehicle body 20, so that the first feeding radiator 31 and the second feeding radiator 32 together form the effect of omnidirectional coverage, thereby further improving the communication performance of the whole vehicle.
[0127] As shown in FIGS. 13 and 15, the frame 201 can include a top portion 21, a first side portion 22, and a second side portion 23, the top portion 21 extends from the front of the vehicle body 20 to the rear of the vehicle body 20, the first side portion 22 and the second side portion 23 are arranged along a first direction Y, the top portion 21 is located between the first side portion 22 and the second side portion 23, the first direction Y is parallel to the chassis 202 of the vehicle, and is perpendicular to the direction from the front of the vehicle body 20 to the rear of the vehicle body 20. Exemplarily, the top portion 21 can include a front cover 211, a front windshield 212, a top structural member 213, a rear windshield 214, and a rear cover 215 arranged in sequence from the front of the vehicle body 20 to the rear of the vehicle body 20.
[0128] In some embodiments, the first feeding radiator 31 can be arranged on the top portion 21, and the second feeding radiator 32 can be arranged on the top portion 21. By arranging the first feeding radiator 31 and the second feeding radiator 32 on the top portion 21 of the frame 201, one of the two feeding radiators 14 transmits and receives signals in the front direction of the vehicle, and the other of the two feeding radiators 14 transmits and receives signals in the rear direction of the vehicle, so that the first feeding radiator 31 and the second feeding radiator 32 jointly form an omnidirectional coverage effect, and improve the communication performance of the whole vehicle.
[0129] Further, as shown in FIG. 13 and FIG. 15, the first feeding radiator 31 can be arranged on the top portion 21, including: the first antenna can be arranged on one of the front windshield 212, the top structural member 213, the rear windshield 214 and the rear cover 215. Similarly, the second feeding radiator 32 can be arranged on the top portion 21, including: the first antenna can be arranged on one of the front windshield 212, the top structural member 213, the rear windshield 214 and the rear cover 215. Since the first feeding radiator 31 and the second feeding radiator 32 are not arranged on the front cover 211 of the frame 201, it is beneficial to avoid the first feeding radiator 31 and the second feeding radiator 32 affecting the appearance of the whole vehicle, and avoiding affecting the wind resistance of the whole vehicle.
[0130] When the first feeding radiator 31 and the second feeding radiator 32 are arranged on the top portion 21, the first feeding radiator 31 and the second feeding radiator 32 can be located on different structural members of the top portion 21 to ensure a certain distance between the first feeding radiator 31 and the second feeding radiator 32, thereby ensuring the effect of the first feeding radiator 31 and the second feeding radiator 32 jointly forming an omnidirectional antenna for transmitting and receiving signals. For example, when the first feeding radiator 31 is located on the front windshield 212 of the top portion 21, the second feeding radiator 32 can be located on the top portion 21 of the frame 201 other than the front windshield 212, for example, the second feeding radiator 32 can be located on one of the top structural member 213, the rear windshield 214 and the rear cover 215.
[0131] The top structure 213 can have different structural components due to different vehicle models. In some embodiments, as shown in FIG. 13, the vehicle can be a sedan model. The top structure 213 can include a first cross beam 2131, a second cross beam 2132, and a third cross beam 2133 arranged in sequence from the front of the vehicle body 20 to the rear of the vehicle body 20. The first cross beam 2131 can be an A-pillar cross beam, the second cross beam 2132 can be a B-pillar cross beam, and the third cross beam 2133 can be a C-pillar cross beam. The top structure 213 can further include a first sheet metal member disposed between the first cross beam 2131 and the second cross beam 2132, and a second sheet metal member disposed between the second cross beam 2132 and the third cross beam 2133.
[0132] When the first feed radiation body 31 is disposed on the top structure 213: the first feed radiation body 31 can be disposed on one of the first cross beam 2131, the second cross beam 2132, and the third cross beam 2133; when the second feed radiation body 32 is disposed on the top structure 213: the second feed radiation body 32 can be disposed on one of the first cross beam 2131, the second cross beam 2132, and the third cross beam 2133. As described in the above embodiments, the first feed radiation body 31 and the second feed radiation body 32 can be located on different structures of the top structure 213. For example, when the first feed radiation body 31 is located on the first cross beam 2131 of the top structure 213, the second feed radiation body 32 can be located on the top structure 213 of the frame 201 other than the first cross beam 2131, for example, the second feed radiation body 32 can be located on the second cross beam 2132 or the third cross beam 2133.
[0133] In some embodiments, as shown in FIG. 15, when the vehicle is an SUV (sport utility vehicle) model, the top structure 213 can include a first cross beam 2131, a sunroof glass 2135, and a spoiler 2136 arranged in sequence from the front of the vehicle body 20 to the rear of the vehicle body 20. The top structure 213 can further include a first luggage rack 2137 and a second luggage rack 2138 arranged along the first direction Y. The sunroof glass 2135 can be located between the first luggage rack 2137 and the second luggage rack 2138, and the first luggage rack 2137 and the second luggage rack 2138 can both be located between the first cross beam 2131 and the spoiler 2136.
[0134] When the first feeding radiator 31 is located on the top structure 213: the first feeding radiator 31 can be arranged on one of the first cross beam 2131, the part of the sunroof glass 2135 close to the first cross beam 2131, the first luggage rack 2137, the second luggage rack 2138, the part of the sunroof glass 2135 close to the spoiler 2136, and the spoiler 2136. When the second feeding radiator 32 is located on the top structure 213: the second feeding radiator 32 can be arranged on one of the first cross beam 2131, the part of the sunroof glass 2135 close to the first cross beam 2131, the first luggage rack 2137, the second luggage rack 2138, the part of the sunroof glass 2135 close to the spoiler 2136, and the spoiler 2136. As described in the above embodiments, the first feeding radiator 31 and the second feeding radiator 32 can be located on different structures of the top structure 213. For example, when the first feeding radiator 31 is located on the first cross beam 2131 of the top structure 213, the second feeding radiator 32 can be located on the top structure 213 of the frame 201 other than the first cross beam 2131, for example, the second feeding radiator 32 can be arranged on one of the part of the sunroof glass 2135 close to the first cross beam 2131, the first luggage rack 2137, the second luggage rack 2138, the part of the sunroof glass 2135 close to the spoiler 2136, and the spoiler 2136.
[0135] In some embodiments, as shown in FIG. 16 and FIG. 17, the first feeding radiator 31 can be arranged on the first side 22, and the second feeding radiator 32 can be arranged on the second side 23. The first side 22 can include the first rearview mirror 221, the first front door 224, the first rear door 225, and the first quarter window 223 arranged in sequence from the front of the vehicle body 20 to the rear of the vehicle body 20, and similarly, the second side 23 can include the second rearview mirror 231, the second front door 234, the second rear door 235, and the second quarter window 233 arranged in sequence from the front of the vehicle body 20 to the rear of the vehicle body 20. Through the above arrangement, one of the two feeding radiators 14 can be mainly used for receiving and transmitting signals in the left direction of the vehicle, and the other of the two feeding radiators 14 can be mainly used for receiving and transmitting signals in the right direction of the vehicle, so that the first feeding radiator 31 and the second feeding radiator 32 together form an omnidirectional coverage effect, improving the communication performance of the whole vehicle.
[0136] In some embodiments, the first feeding radiator 31 is arranged on the first side portion 22, including: the first feeding radiator 31 is arranged on one of the first rearview mirror 221 and the first triangular window 223; and the second feeding radiator 32 is arranged on the second side portion 23, including: the second feeding radiator 32 is arranged on one of the second rearview mirror 231 and the second triangular window 233. Wherein, the first rearview mirror 221 can be a left rearview mirror of the frame 201, and the second rearview mirror 231 can be a right rearview mirror of the frame 201; or, the first rearview mirror 221 can be a right rearview mirror of the frame 201, and the second rearview mirror 231 can be a left rearview mirror of the frame 201. The feeding radiator arranged on the rearview mirror can be understood as that the feeding radiator is arranged in the shell of the rearview mirror. Wherein, the triangular window can be roughly triangular in shape, or the triangular window can also be in other shapes, which are not limited in the embodiments of the present application. The first triangular window 223 and the second triangular window 233 can be triangular windows adjacent to the C-pillar of the frame 201, so as to avoid the first feeding radiator 31 and the second feeding radiator 32 from blocking the view of the main driver or the co-driver.
[0137] For example, the first feeding radiator 31 and the second feeding radiator 32 can be symmetrically arranged relative to the central axial plane S of the vehicle body 20. For example, as shown in FIG. 16, when the first feeding radiator 31 is arranged on the first rearview mirror 221, the second feeding radiator 32 can be arranged on the second rearview mirror 231. Or, as shown in FIG. 17, when the first feeding radiator 31 is arranged on the first triangular window 223, the second feeding radiator 32 can be arranged on the second triangular window 233. Through the above arrangement, it is beneficial to further improve the regularity of the distribution of the first feeding radiator 31 and the second feeding radiator 32 on the vehicle body 20, and it is beneficial to improve the assembly efficiency of the first feeding radiator 31 and the second feeding radiator 32.
[0138] In some embodiments, as shown in FIG. 18, the first feeding radiator 31 is arranged on the top portion 21, and the second feeding radiator 32 is arranged on the first side portion 22 or the second side portion 23. As described in the above embodiments, the first feeding radiator 31 can be arranged on one of the front windshield 212, the top structural member 213, the rear windshield 214, and the rear cover 215; and the second feeding radiator 32 can be arranged on one of the first rearview mirror 221, the first triangular window 223, the second rearview mirror 231, and the second triangular window 233.
[0139] Through the above setting, one of the two feeding radiators 14 can receive and transmit signals in the left front direction of the vehicle, the other of the two feeding radiators 14 can receive and transmit signals in the right rear direction of the vehicle, or one of the two feeding radiators 14 can receive and transmit signals in the right front direction of the vehicle, the other of the two feeding radiators 14 can receive and transmit signals in the left rear direction of the vehicle, so that the first feeding radiator 31 and the second feeding radiator 32 jointly form the effect of omnidirectional coverage, and the communication performance of the whole vehicle is improved.
[0140] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A vehicle characterized by comprising: The application relates to a vehicle body, which comprises a frame and a chassis connected with each other, a first feeding radiation body installed on the frame, and a communication assembly installed on the frame or in a space surrounded by the frame and the chassis, wherein the communication assembly comprises a plurality of feeding radiation bodies, a switching module and a communication module, the working frequency bands of the plurality of feeding radiation bodies are at least partially the same, the number of the plurality of feeding radiation bodies is greater than that of the first feeding radiation body, at least one of the plurality of feeding radiation bodies is a second feeding radiation body, the working frequency bands of the second feeding radiation body and the first feeding radiation body are the same, the distance between the second feeding radiation body and at least one of the first feeding radiation bodies is greater than 40 cm, the common port of the switching module is coupled with the communication module, the first port of the switching module is coupled with the second feeding radiation body, and the second port of the switching module is coupled with the first feeding radiation body through a cable. The communication module comprises a control unit, and has an initial working state and a first working state; the control unit is used for controlling the switching module to couple the communication module with the second feeding radiation body in the initial working state; and the control unit is also used for controlling the switching module to couple the communication module with the first feeding radiation body in the first working state. The communication module further comprises a detection unit, which is used for acquiring the signal strength of the first feeding radiation body and the signal strength of the second feeding radiation body. The communication module is used for switching from the initial working state to the first working state when the signal strength of the second feeding radiation body is less than a preset value and the signal strength of the second feeding radiation body is less than that of the first feeding radiation body.
2. The vehicle of claim 1, wherein The communication module further comprises a detection unit, which is used for acquiring relative pose information between a satellite and the vehicle body, and the relative pose information is used for representing the position and attitude of the vehicle body relative to the satellite in a plane parallel to the bottom surface of the vehicle.
3. The vehicle of claim 2, wherein, The communication module is used for switching from the initial working state to the first working state according to the relative pose information. The first feeding radiation body and the second feeding radiation body jointly constitute an omnidirectional antenna.
4. The vehicle of claim 2, wherein, Part of the plurality of feeding radiation bodies forms a main diversity antenna, part of the plurality of feeding radiation bodies forms at least one diversity antenna, and the first feeding radiation body is coupled with the main diversity antenna through the switching module and the communication module. In a plane parallel to the bottom surface of the vehicle, the first feeding radiation body is used as an antenna to receive and transmit signals in a first coverage area, and the second feeding radiation body is used as an antenna to receive and transmit signals in a second coverage area, wherein the coverage angle of the first coverage area is smaller than that of the second coverage area.
5. The vehicle of any one of claims 1-4, wherein, The frame comprises a front cover, a front windshield, a top structural member, a rear windshield and a rear cover arranged in sequence from the front of the vehicle body to the tail of the vehicle body.
6. The vehicle of any one of claims 1-5, wherein, 7. The vehicle of any one of claims 1-6, wherein, 8. The vehicle of any one of claims 1-7, wherein, The communication assembly is located inside the top structure, and the first feeding radiator is arranged on the front windshield or the rear windshield.
9. The vehicle of any one of claims 1-7, wherein, The frame comprises, in sequence from the front of the vehicle body to the rear of the vehicle body, a front cover, a front windshield, a top structure, a rear windshield, and a rear cover. The communication assembly is located on one side of the rear cover, and the first feeding radiator is arranged on the front windshield or the top structure.
10. The vehicle of any one of claims 1-9, wherein, The communication assembly comprises a vehicle networking terminal box.
11. A vehicle characterized by comprising: Comprise: A vehicle body comprising a frame and a chassis connected to each other; A communication assembly installed in a space enclosed by the frame and the chassis; A first feeding radiator and a second feeding radiator installed on the frame, a distance between the first feeding radiator and the second feeding radiator is greater than 40 cm, the first feeding radiator and the second feeding radiator are both coupled to the communication assembly, the second feeding radiator and the first feeding radiator have the same working frequency band, and the first feeding radiator and the second feeding radiator jointly constitute an omnidirectional antenna.
12. The vehicle of claim 11, wherein, In a plane parallel to the chassis of the vehicle, the first feeding radiator is used as an antenna to receive and transmit signals in a first coverage area, and the second feeding radiator is used as an antenna to receive and transmit signals in a second coverage area, and an angle of coverage of at least part of the first coverage area and an angle of coverage of at least part of the second coverage area are supplementary angles.
13. The vehicle of claim 11 or 12, characterized in that The distance between the first feeding radiator and the second feeding radiator is greater than or equal to 1 meter.
14. The vehicle of any one of claims 11-13, characterized by The frame comprises a top portion, a first side portion, and a second side portion, the top portion extends from a front of the vehicle body to a rear of the vehicle body, the first side portion and the second side portion are arranged along a first direction, the top portion is located between the first side portion and the second side portion, the first direction is parallel to a chassis of the vehicle and perpendicular to a direction from the front of the vehicle body to the rear of the vehicle body; The first feeding radiator is arranged on the top portion, and the second feeding radiator is arranged on the top portion.
15. The vehicle of claim 14, wherein, The top portion comprises, in sequence from the front of the vehicle body to the rear of the vehicle body, a front cover, a front windshield, a top structure, a rear windshield, and a rear cover. The first feeding radiator arranged on the top portion comprises: the first feeding radiator arranged on one of the front windshield, the top structure, the rear windshield, and the rear cover; The second feeding radiator arranged on the top portion comprises: the second feeding radiator arranged on one of the front windshield, the top structure, the rear windshield, and the rear cover.
16. The vehicle of any one of claims 11-13, characterized in that, The frame comprises a top portion, a first side portion, and a second side portion, the top portion extends from a front of the vehicle body to a rear of the vehicle body, the first side portion and the second side portion are arranged along a first direction, the top portion is located between the first side portion and the second side portion, the first direction is parallel to a chassis of the vehicle and perpendicular to a direction from the front of the vehicle body to the rear of the vehicle body; The first feeding radiator is arranged on the first side portion, and the second feeding radiator is arranged on the second side portion.
17. The vehicle of claim 16, wherein, The first side portion comprises a first rearview mirror, a first front door, a first rear door and a first quarter window arranged in sequence from a front end of the vehicle body to a rear end of the vehicle body, and the second side portion comprises a second rearview mirror, a second front door, a second rear door and a second quarter window arranged in sequence from the front end of the vehicle body to the rear end of the vehicle body; The first feeding radiator arranged on the first side portion comprises: the first feeding radiator arranged on one of the first rearview mirror and the first quarter window; The second feeding radiator arranged on the second side portion comprises: the second feeding radiator arranged on one of the second rearview mirror and the second quarter window.
18. The vehicle of any one of claims 11-13, characterized in that, The frame comprises a top portion, a first side portion and a second side portion, the top portion extends from a front end of the vehicle body to a rear end of the vehicle body, the first side portion and the second side portion are arranged along a first direction, the top portion is located between the first side portion and the second side portion, the first direction is parallel to a chassis of the vehicle and perpendicular to a direction from the front end of the vehicle body to the rear end of the vehicle body; The first feeding radiator is arranged on the top portion, and the second feeding radiator is arranged on the first side portion or the second side portion.
19. The vehicle of any of claims 11-18, characterized by, The communication assembly comprises an intelligent cockpit domain controller.
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