Vehicle-mounted combined antenna and electronic device

Abstract

The present application relates to the technical field of antennas, and provides a vehicle-mounted combined antenna and an electronic device. In embodiments of the present application, signals received by a plurality of first antennas can be transmitted to a T-BOX by means of a first wiring harness. Correspondingly, the plurality of first antennas can also receive signals transmitted from the T-BOX by means of the first wiring harness and transmit the signals. Moreover, signals received by a second antenna can be transmitted to the T-BOX and a P-BOX by means of a second wiring harness and a third wiring harness, respectively, to facilitate positioning and network communication. By means of the first wiring harness, the second wiring harness, and the third wiring harness, the distance between the vehicle-mounted combined antenna and the T-Box, as well as the position of the antenna, can be more flexibly configured. Thus, the mounting position of the vehicle-mounted combined antenna is no longer constrained or limited by the layout position of the T-BOX, and signal shielding areas can be flexibly avoided.

Description

Vehicle-mounted combined antenna and electronic equipment Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a vehicle-mounted combined antenna and electronic equipment. Background Art

[0002] With the continuous advancement of intelligent and networked vehicles, connected vehicle (IoV) technology is maturing. IoV refers to the interconnected communication between vehicles and everything else. As the most advanced component of the entire IoV system, the onboard antenna relies on it to locate and transmit all location and communication data. Therefore, the quality of the onboard antenna directly impacts the performance of the entire IoV system.

[0003] Traditionally, vehicle-mounted antennas are designed inside the T-BOX (Telematics Box). Because the T-BOX contains multiple communication components, such as RF circuits and power amplifiers, the internal space is limited. Therefore, when multiple antennas are integrated into the T-BOX, the antennas are tightly packed together, which can lead to poor antenna isolation. Furthermore, the RF circuits generate electromagnetic waves during operation, which can cause electromagnetic interference to the antennas, affecting their transmit and receive performance.

[0004] Therefore, the vehicle-mounted antenna solutions provided by traditional solutions cannot meet the current requirements of automobiles for vehicle communications.

[0005] Summary of the Invention

[0006] The embodiments of the present application are dedicated to providing a vehicle-mounted combined antenna and electronic device, which are introduced below from the following aspects.

[0007] In a first aspect, a vehicle-mounted combination antenna is provided, which includes a circuit board, a first wiring harness, a second wiring harness and a third wiring harness, wherein multiple first antennas and at least one second antenna are mounted on the circuit board, the first wiring harness is connected to the multiple first antennas through the circuit board, and the second wiring harness and the third wiring harness are respectively connected to the second antenna through the circuit board, wherein the first wiring harness and the second wiring harness are connected to a remote communication module, and the third wiring harness is connected to a vehicle positioning module.

[0008] In one embodiment, the second antenna is disposed in the central area of ​​the circuit board, and the plurality of first antennas are respectively disposed on three sides of the circuit board.

[0009] In one embodiment, the first antennas with higher antenna frequencies among the plurality of first antennas are arranged on the long side of the circuit board, and the first antennas with lower antenna frequencies are arranged on the short side of the circuit board.

[0010] In one embodiment, the vehicle-mounted combined antenna further includes a shielding cover, which is disposed in a central area of ​​a side of the circuit board facing away from the second antenna.

[0011] In one embodiment, the vehicle-mounted combined antenna further includes a power splitter feeding module, which is located on the circuit board and disposed between the second antenna and the second and third wiring harnesses.

[0012] In one embodiment, the vehicle-mounted combination antenna further includes a first shell and a second shell, which are snap-connected to form a receiving cavity, wherein the circuit board is installed in the receiving cavity, and the first wiring harness, the second wiring harness and the third wiring harness extend from the receiving cavity.

[0013] In one embodiment, the plurality of first antennas are heat-fused onto the first housing using steel sheets.

[0014] In one embodiment, the multiple first antennas include two 5G MIMO antennas, one 5G Main antenna and one 5G diversity antenna, and the second antenna is a ceramic high-precision positioning antenna or a GNSS active antenna.

[0015] In one embodiment, a fixing ear is provided on a short side of the first shell, and the fixing ear includes a reinforcing rib and a fixing plate, wherein a fixing hole is provided on the fixing plate.

[0016] In a second aspect, an electronic device is provided, comprising: a remote communication module, a vehicle positioning module and the vehicle-mounted combination antenna disclosed in the first aspect above, wherein the vehicle-mounted combination antenna is connected to the remote communication module and the vehicle positioning module respectively.

[0017] In an embodiment of the present application, the signals received by the multiple first antennas can be transmitted to the T-BOX through the first wiring harness. Correspondingly, the multiple first antennas can also receive the signals transmitted from the T-BOX through the first wiring harness and transmit them. In addition, the signals received by the second antenna can be transmitted to the T-BOX and P-BOX through the second wiring harness and the third wiring harness, respectively, to facilitate positioning and network communication. The distance and position between the vehicle-mounted combination antenna and the T-BOX can be configured more flexibly through the first wiring harness, the second wiring harness and the third wiring harness. The installation position of the vehicle-mounted combination antenna is no longer constrained and restricted by the layout position of the T-BOX, and can flexibly avoid the signal shielding area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 shows a schematic diagram of a vehicle-mounted combined antenna provided in an embodiment of the present application.

[0019] FIG2 shows a schematic diagram of a circuit board.

[0020] FIG3 exemplarily shows a circuit structure diagram of a power splitter feeding module.

[0021] FIG4 shows a schematic diagram of a housing of a vehicle-mounted combined antenna.

[0022] FIG5 shows a schematic diagram of assembling a circuit board in a first housing.

[0023] FIG6 shows an exploded schematic diagram of a six-in-one combination antenna.

[0024] FIG. 7 is a schematic diagram showing the voltage standing wave ratio of each first antenna.

[0025] FIG8 is a schematic diagram showing the voltage standing wave ratio of the second antenna.

[0026] FIG9 shows the isolation between antennas.

[0027] FIG10 shows a structural block diagram of an electronic device.

[0028] Figure numbers: 1-second housing; 2-first housing; 3-circuit board; 4-first antenna; 5-second antenna; 6-fixing ear; 7-velvet tape; 8-cable tie buckle; 9-connector of the first wiring harness; 10-connector of the second wiring harness; 11-connector of the third wiring harness; 12-shielding cover; 13-screw; 14-RF cable. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0030] Connected Car (C2V) refers to technologies and applications that connect cars to the internet through wireless communications, enabling information exchange and data sharing between vehicles, between vehicles and transportation infrastructure, and between vehicles and users. C2V enables remote monitoring, diagnosis, control, and upgrades of vehicles, providing navigation, entertainment, safety, and rescue services, enhancing the driving experience and improving traffic safety and efficiency.

[0031] Among them, the vehicle-mounted antenna is a key component for realizing intelligent network functions such as radio communication, wireless network, satellite positioning, etc., and plays a key role in sending and receiving signals in the communication system.

[0032] In traditional solutions, most vehicle-mounted antennas are designed inside the T-BOX. However, the design of the RF circuit inside the T-BOX squeezes the space for the vehicle-mounted antennas, resulting in poor isolation between multiple vehicle-mounted antennas and adversely affecting the performance of the vehicle-mounted antennas.

[0033] Furthermore, the vehicle antenna is designed within the T-BOX, and the RF circuitry and its surrounding circuits can generate electromagnetic interference, which can also affect the antenna's performance. Furthermore, the vehicle antenna must follow the T-BOX layout, meaning it must be located where the T-BOX is installed. If the T-BOX is located in a signal-shielded area, the antenna's signal quality will be very poor, directly impacting the vehicle's network communication performance after installation.

[0034] In recent years, with the introduction of 5G technology and the application of MIMO (Multiple-Input Multiple-Output) technology, the number of on-board antennas has increased significantly, sometimes reaching 10-20 or even more. This increase in the number of on-board antennas can create difficulties in assembly, installation, and post-installation management. Therefore, the integration of multiple antennas is a trend that needs to be addressed in on-board antennas.

[0035] In order to solve the above technical problems, an embodiment of the present application provides a vehicle-mounted combination antenna, including a circuit board, a first wiring harness, a second wiring harness and a third wiring harness, wherein a plurality of first antennas and at least one second antenna are installed on the circuit board, the first wiring harness is connected to the plurality of first antennas through the circuit board, the second wiring harness and the third wiring harness are respectively connected to the second antenna through the circuit board, wherein the first wiring harness and the second wiring harness are connected to the remote communication module, and the third wiring harness is connected to the vehicle positioning module. In an embodiment of the present application, the vehicle-mounted antenna is separately provided to form a physical isolation from the T-BOX. On the one hand, it can avoid being restricted by the space inside the T-BOX and electromagnetic interference from the radio frequency circuit and its peripheral circuits inside the T-BOX. On the other hand, the installation position of the vehicle-mounted antenna is no longer affected by the layout of the T-BOX, so that the signal shielding area can be flexibly avoided.

[0036] The following describes in detail the vehicle-mounted combined antenna provided in the embodiments of the present application with reference to the accompanying drawings.

[0037] As shown in Figure 1, a schematic diagram of a vehicle-mounted combination antenna provided in an embodiment of the present application is shown. The vehicle-mounted combination antenna includes a circuit board, a first wiring harness, a second wiring harness, and a third wiring harness. Multiple first antennas and at least one second antenna are mounted on the circuit board. The first wiring harness is connected to the multiple first antennas via the circuit board, and the second and third wiring harnesses are respectively connected to the second antenna.

[0038] The first wiring harness includes a FAKRA connector and a radio frequency cable. The radio frequency cable can effectively transmit signals, maintain signal stability and integrity, reduce signal attenuation and interference, and improve communication quality and performance. In this embodiment of the present application, one end of the radio frequency cable is connected to the FAKRA connector, and the other end is connected to the first antenna via a circuit board. The FAKRA connector is used to connect to the remote communication module T-BOX.

[0039] The second and third wiring harnesses have similar structures to the first, including FAKRA connectors and RF cables. One end of the second wiring harness's RF cable connects to the second antenna, and its FAKRA connector connects to the T-BOX. One end of the third wiring harness's RF cable connects to the second antenna, and its FAKRA connector connects to the vehicle positioning module (P-BOX).

[0040] The T-BOX is primarily responsible for vehicle communication and networking, with its core being the 4G / 5G / 6G communication module. The P-BOX, a vehicle positioning module, is primarily responsible for vehicle positioning, with its core being the GNSS signal reception and resolution module.

[0041] In an embodiment of the present application, the first wiring harness is a multi-in-one wiring harness, that is, the first wiring harness includes multiple RF cables, one of which is connected to one first antenna. For example, if there are four first antennas, the first wiring harness is a four-in-one wiring harness. Each RF cable can be independently connected to a FAKRA connector to connect to the remote communication module. Alternatively, multiple RF cables can share a single FAKRA connector and connect to the remote communication module through the single FAKRA connector.

[0042] In some implementations, the plurality of radio frequency cables are wrapped and fixed by using flannel tape and cable tie buckles.

[0043] In an embodiment of the present application, the signals received by the multiple first antennas can be transmitted to the T-BOX through the first wiring harness. Correspondingly, the multiple first antennas can also receive the signals transmitted from the T-BOX through the first wiring harness and transmit them. In addition, the signals received by the second antenna can be transmitted to the T-BOX and P-BOX through the second wiring harness and the third wiring harness, respectively, to facilitate positioning and network communication. The distance and position between the vehicle-mounted combination antenna and the T-BOX can be configured more flexibly through the first wiring harness, the second wiring harness and the third wiring harness. The installation position of the vehicle-mounted combination antenna is no longer constrained and restricted by the layout position of the T-BOX, and can flexibly avoid the signal shielding area.

[0044] Based on the above embodiments, the first antenna and the second antenna involved in the embodiments of the present application are described below.

[0045] In an embodiment of the present application, the second antenna is disposed in the central area of ​​the circuit board, and multiple first antennas are disposed on three sides of the circuit board. Please refer to Figure 2, which shows a schematic diagram of a circuit board. Figure 2 exemplarily illustrates four first antennas and one second antenna. Two of the four first antennas are located on the long sides of the circuit board, and the other two are located on the two short sides of the circuit board. The second antenna is disposed on the plane of the circuit board.

[0046] In one optional implementation, a high-frequency antenna among the multiple first antennas is positioned on the long side of the circuit board, while a low-frequency antenna is positioned on the short side of the circuit board. This approach allows for more efficient use of the internal space within the vehicle-mounted antenna assembly and improves isolation between the antennas.

[0047] Among them, the distance between the first antennas arranged on the long side is greater than half or one-quarter of the wavelength of the two antennas. Otherwise, the two may cause signal interference. The higher the frequency of the antenna, the shorter the corresponding signal wavelength. In this case, the distance between the antennas can be set relatively close without causing interference. The lower the frequency of the antenna, the longer the corresponding signal wavelength. In this case, the distance between the antennas needs to be set relatively far. It can be seen that the first antenna with a low antenna frequency has higher requirements for the distance between antennas. Therefore, the first antenna with a low antenna frequency is set separately on the short side of the circuit board, which increases the distance between the first antenna with a low antenna frequency and other antennas to avoid mutual interference.

[0048] As shown in Figure 2, two first antennas are set on the long side of the circuit board in Figure 2. The two first antennas can be the first antennas with higher antenna frequencies among multiple first antennas. In this way, the two first antennas have lower requirements for the distance between the antennas, which facilitates achieving higher isolation.

[0049] In one implementation, the multiple first antennas may be multiple identical antennas, or multiple completely different antennas, or multiple partially identical antennas. When the multiple first antennas are multiple identical antennas, the multiple identical antennas may be blindly plugged in.

[0050] In some implementations, the plurality of first antennas are flexible circuit board antennas. In some implementations, the plurality of first antennas may include both low- and medium-frequency antennas and high- and medium-frequency antennas. In some implementations, the plurality of first antennas are PIFA (Planar Inverted F-shaped Antenna) antennas.

[0051] In some implementations, the frequency coverage range of the first antenna is 600MHz-960MHz, 1710MHz-6000MHz, which includes frequency bands of multiple standards such as 4G LTE, 5G NR, WiFi, V2X, GPS, etc. Optionally, the multiple first antennas may include any one or more of a WiFi 2.4G antenna, a WiFi 5G antenna, a V2X (vehicle-to-everything) antenna, an LTE (Long Term Evolution) 4G antenna, a 5G NR (5G New Radio) antenna, a 5G MIMO antenna, a 5G Main antenna, and a 5G diversity antenna. Among them, WiFi 2.4G refers to WiFi operating in the 2.4G radio wave band. WiFi 5G refers to WiFi operating in the 5Ghz radio wave band.

[0052] Optionally, the multiple first antennas include two 5G MIMO antennas, one 5G Main antenna, and one 5G diversity antenna. In one implementation, the two 5G MIMO antennas are located on the long sides of the circuit board, and the one 5G Main antenna and one 5G diversity antenna are located on the two short sides of the circuit board respectively. The frequency coverage range of the two 5G Main antennas is 600MHz-960MHz, 1710MHz-6000MHz, and the frequency coverage range of the two 5G MIMO antennas is 1710MHz-6000MHz. Optionally, the 5G Main antenna and the 5G diversity antenna can be blindly plugged in.

[0053] In an optional implementation, the 5G Main antenna and the 5G diversity antenna adopt a LOOP antenna form, wherein the LOOP antenna form can effectively increase the low-frequency bandwidth.

[0054] Based on the above embodiment, in an embodiment of the present application, the second antenna is a ceramic high-precision positioning antenna or a GNSS active antenna.

[0055] When the second antenna is an active GNSS antenna, since active antennas are generally equipped with signal amplification circuits and other possible peripheral circuits, these circuits may generate electromagnetic interference with the other first antennas during operation. To address this issue, in an embodiment of the present application, as shown in FIG2 , the vehicle-mounted combination antenna further includes a shielding cover, wherein the shielding cover is disposed in the center area of ​​the side of the circuit board facing away from the second antenna. In other words, the shielding cover and the second antenna are disposed at the same position on both the front and back sides of the circuit board. In this way, the shielding cover can electromagnetically shield the peripheral circuits of the GNSS active antenna, preventing interference with the other first antennas.

[0056] In some implementations, the GNSS active antenna covers a frequency range of 1559-1606 MHz, supporting the GPS L1 and L5 bands, the Beidou Navigation Satellite System (BDS) B1 band, the Russian Global Navigation Satellite System (GLONASS) G1 band, and the Galileo E1 band. The B1 band is 1559-1563 MHz, with a frequency of 1561.098 ± 2.046 MHz. The GLONASS G1 signal band has a frequency range of 1598.0625 to 1605.375 MHz. The GALILEO E1 signal has a frequency of 1575.42 MHz.

[0057] In some implementations, when there are two second antennas, the two second antennas are identical. The second and third wiring bundles are each connected to a second antenna. Because the two second antennas are identical, the signals received by them can be considered identical. In this case, one signal is transmitted to the T-BOX via the second wiring bundle, and the other signal is transmitted to the P-BOX via the third wiring bundle.

[0058] In other implementations, when the number of the second antenna is one, the vehicle-mounted combination antenna further includes a power splitter feeding module, wherein the power splitter feeding module is located on the circuit board and is arranged between the second antenna and the second and third wiring harnesses.

[0059] In one implementation, the power splitter feeding module includes an input port and two output ports, the input port is connected to the second antenna, and the two input ports are connected to the second wiring harness and the third wiring harness, respectively.

[0060] In another implementation, as shown in FIG3 , FIG3 exemplarily illustrates a circuit structure diagram of a power splitter feeding module. The power splitter feeding module includes a filter, a first-stage amplifier, a second-stage amplifier, and a power divider. After the second antenna receives a signal, the signal is filtered by the filter, amplified by the first-stage amplifier and the second-stage amplifier, and finally split into two signals by the power divider. The signals are output to the second and third wiring harnesses through two output ports, and are ultimately delivered to the T-BOX and P-BOX, respectively.

[0061] In the embodiment of the present application, two outputs are realized through a second antenna and a power splitter feeding module, one for the P-BOX used for the car navigation and the other for the T-BOX, thereby achieving low cost.

[0062] Based on the above embodiment, the vehicle-mounted third wiring harness combination antenna provided in the embodiment of the present application further includes a first housing and a second housing, as shown in Figures 4 and 5. Figure 4 shows a schematic diagram of the housing of the vehicle-mounted combination antenna. Figure 5 shows a schematic diagram of the assembly of a circuit board within the first housing.

[0063] The first shell and the second shell are clamped together to form an accommodating cavity, the circuit board is installed in the accommodating cavity, and the first wiring harness, the second wiring harness and the third wiring harness extend from the accommodating cavity.

[0064] In some implementations, the first housing and the second housing are non-metal housings. Optionally, the first housing and the second housing are plastic housings or resin material housings.

[0065] In some implementations, the shapes of the first housing and the second housing can be any shape. In some implementations, the shapes of the first housing and the second housing are the same as the shape of the circuit board.

[0066] In some implementations, the first housing and the second housing are connected by screws. In some implementations, the first housing and the second housing are welded by ultrasonic heat fusion technology.

[0067] In some implementations, the housing formed by closing the first housing and the second housing can achieve an IP52 waterproof rating.

[0068] As shown in FIG. 4 and FIG. 5 , in the embodiment of the present application, a fixing ear is provided on the short side of the first shell. The fixing ear includes a reinforcing rib and a fixing plate. A fixing hole is provided on the fixing plate.

[0069] The fixing hole is a threaded hole or a through hole. The fixing plate and the reinforcing rib are connected to the side of the first shell.

[0070] In one implementation, one short side of the first housing is provided with one or more fixing ears.

[0071] In some other implementations, one or more fixing ears are provided on each of the two short sides of the first housing. In particular, in the housing shown in FIG4 , one fixing ear is provided on each of the two short sides of the first housing.

[0072] In the embodiment of the present application, the stability and reliability of the antenna are enhanced by directly integrating the fixing ears with the first housing.

[0073] As shown in FIG4 , the dimensions of the first and second housings in the embodiment of the present application are 128 mm × 74 mm × 22 mm, wherein the fixing ears on both sides increase the total length of the antenna to 171 mm.

[0074] In one implementation, as shown in Figure 5, multiple first antennas are welded to the first housing for securement. Alternatively, multiple first antennas can be secured to the first housing by hot-melting steel sheets. Power is supplied to the antennas by welding them to the circuit board. This connection method ensures excellent vibration resistance when used in various vehicle systems.

[0075] 5 shows four first antennas, which are fixed to the first housing by hot-melting steel sheets.

[0076] The vehicle-mounted combined antenna provided in the embodiments of the present application has the following advantages:

[0077] 1. This miniaturized vehicle-mounted combination antenna features high integration and flexible assembly. It packs as many antennas as possible into the smallest possible space, reducing space pressure on the communication system. This miniaturized vehicle-mounted combination antenna requires even less space.

[0078] 2. This miniaturized vehicle-mounted combination antenna can be adapted to a wider range of installation environments, and can achieve more uniform performance regardless of whether the base is metal or plastic.

[0079] 3. This miniaturized vehicle-mounted combination antenna covers a wider frequency range.

[0080] 4. The GNSS active antenna in this miniaturized vehicle-mounted combination antenna supports GPS L1, BEIDOU B1I, GLONASS G1, and GALILEO E1 multi-constellation combinations. Through a GNSS receiver module, the circuit board uses a power splitter feed network to achieve two outputs, one for the P-BOX used by the vehicle navigation system and the other for the T-BOX, achieving low cost.

[0081] Based on the above embodiment, as shown in FIG6 , FIG6 shows an exploded schematic diagram of a six-in-one combination antenna.

[0082] Among them, the six-in-one combination antenna includes: a first shell, a second shell, a GNSS active antenna, a second wiring harness and a third wiring harness connected to the GNSS active antenna, multiple first antennas (for example, a 5G Main antenna, a 5G diversity antenna, two 5G MIMO antennas), a first wiring harness connected to multiple first antennas, velvet tape, cable tie buckles, circuit boards, shielding covers, and screws.

[0083] The first housing snaps into the second housing and is secured to the first housing with screws. The 5G Main antenna (5G-Main), 5G Diversity antenna (5G-DIV), and two 5G MIMO antennas (5G-MIMO1 and 5G-MIMO2) are heat-fused into the first housing. The 5G Main antenna, 5G Diversity antenna, two 5G MIMO antennas, and the GNSS active antenna are soldered to the circuit board.

[0084] The connector of the first wiring harness connects to each of the primary antennas on the circuit board via RF cables. This ensures the stability of the six-in-one antenna assembly while maintaining antenna performance. The 5G Main antenna and 5G Diversity antenna can be blind-plugged, ensuring simple and convenient antenna assembly.

[0085] The performance of the above six-in-one combination antenna will be described below with reference to FIG. 7 to FIG. 9 .

[0086] Figure 7 shows a schematic diagram of the voltage standing wave ratio (VSWR) of each first antenna. The horizontal axis represents frequency, and the vertical axis represents the voltage standing wave ratio (VSWR), which is the ratio of the peak voltage to the valley voltage of the traveling standing wave. A larger VSWR indicates higher reflected power and lower transmission efficiency. As can be seen, the VSWR of the four first antennas in this six-in-one combination antenna can reach below 3.

[0087] Figure 8 shows a schematic diagram of the voltage standing wave ratio (VSWR) of the second antenna. The horizontal axis represents frequency, and the vertical axis represents the voltage standing wave ratio (VSWR). It can be seen that the VSWR of the GNSS active antenna can reach approximately 2.

[0088] Figure 9 shows the isolation between antennas. The horizontal axis represents frequency, and the vertical axis represents isolation. Line 1 shows the isolation between 5G-Main and 5G-MIMO2, line 2 shows the isolation between 5G-MIMO2 and the GNSS active antenna, line 3 shows the isolation between 5G-DIV and the GNSS active antenna, line 4 shows the isolation between 5G-DIV and 5G-MIMO1, line 5 shows the isolation between 5G-Main and 5G-DIV, line 6 shows the isolation between 5G-Main and the GNSS active antenna, and line 7 shows the isolation between 5G-Main and 5G-MIMO1. It can be seen that the isolation between the first antenna and the first antenna, as well as between the first antenna and the second antenna, of this six-in-one combination antenna meets the requirements.

[0089] On the basis of the above embodiment, an embodiment of the present application further provides an electronic device, which includes the vehicle-mounted combination antenna, remote communication module and vehicle positioning module provided in the above embodiment, wherein the vehicle-mounted combination antenna is respectively connected to the remote communication module and the vehicle positioning module. The electronic device may be, for example, a vehicle-mounted device, or may be, for example, a road test device, etc. As shown in Figure 10, Figure 10 shows a structural block diagram of an electronic device, wherein the electronic device includes a memory 1002, a processor 1001, an input / output interface 1003, a remote communication module, a vehicle positioning module, and an on-board combination antenna 1004. The memory 1002, the processor 1001, and the input / output interface 1003 are connected via an internal connection path. The remote communication module and the vehicle positioning module are respectively connected to the processor 1001, the memory 1002 is used to store instructions, and the processor 1001 is used to execute the instructions stored in the memory 1002. The vehicle-mounted combined antenna 1004 is used to receive various forms of external signals and transmit them to the remote communication module and the vehicle positioning module, and then the remote communication module and the vehicle positioning module transmit them to the processor 1001.

[0090] It should be understood that in the embodiment of the present application, the processor 1001 can adopt a general central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits to execute related programs.

[0091] The memory 1002 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1001. A portion of the processor 1001 may also include a non-volatile random access memory. For example, the processor 1001 may also store device type information.

[0092] The processor may be a central processing unit (CPU), and may also include other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may include a microprocessor or any conventional processor, etc.

[0093] It should be noted that, in the embodiments, unless otherwise specified herein, the terms "a," "an," "the," and "the" may also include plural forms. If the embodiments of the present invention include descriptions involving "first," "second," "third," etc., such descriptions are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0094] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A vehicle-mounted combined antenna, characterized in that: The vehicle-mounted combined antenna includes a circuit board, a first wiring harness, a second wiring harness and a third wiring harness, wherein a plurality of first antennas and at least one second antenna are mounted on the circuit board, the first wiring harness is connected to the plurality of first antennas through the circuit board, the second wiring harness and the third wiring harness are respectively connected to the second antenna through the circuit board, wherein the first wiring harness and the second wiring harness are connected to a remote communication module, and the third wiring harness is connected to a vehicle positioning module.

2. The vehicle-mounted combined antenna according to claim 1, characterized in that: The second antenna is arranged at the central area of ​​the circuit board, and the plurality of first antennas are arranged at three sides of the circuit board respectively.

3. The vehicle-mounted combined antenna according to claim 1 or 2, characterized in that: Among the plurality of first antennas, a first antenna with a high antenna frequency is arranged on a long side of the circuit board, and a first antenna with a low antenna frequency is arranged on a short side of the circuit board.

4. The vehicle-mounted combined antenna according to any one of claims 1 to 3, characterized in that: The vehicle-mounted combined antenna also includes a shielding cover, which is arranged in a central area of ​​a side of the circuit board away from the second antenna.

5. The vehicle-mounted combined antenna according to any one of claims 1 to 4, characterized in that: The vehicle-mounted combined antenna further includes a power division feeding module, which is located on the circuit board and is arranged between the second antenna and the second wiring harness and the third wiring harness.

6. The vehicle-mounted combined antenna according to any one of claims 1 to 5, characterized in that: The vehicle-mounted combination antenna also includes a first shell and a second shell, which are snap-connected to form a receiving cavity, wherein the circuit board is installed in the receiving cavity, and the first wiring harness, the second wiring harness and the third wiring harness extend out of the receiving cavity.

7. The vehicle-mounted combined antenna according to claim 6, characterized in that: The plurality of first antennas are heat-fused onto the first housing using steel sheets.

8. The vehicle-mounted combined antenna according to any one of claims 1 to 7, characterized in that: The multiple first antennas include 2 5G MIMO antennas, 1 5G Main antenna and 1 5G diversity antenna, and the second antenna is a ceramic high-precision positioning antenna or a GNSS active antenna.

9. The vehicle-mounted combined antenna according to claim 6 or 7, characterized in that: A fixing ear is arranged on the short side of the first shell, and the fixing ear comprises a reinforcing rib and a fixing plate, wherein a fixing hole is opened on the fixing plate.

10. An electronic device, characterized in that: include: A remote communication module, a vehicle positioning module and a vehicle-mounted combined antenna as described in any one of claims 1 to 9, wherein: The vehicle-mounted combined antenna is connected to the remote communication module and the vehicle positioning module respectively.

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