CN112422143A - High-precision positioning vehicle-mounted equipment, intelligent cabin and vehicle - Google Patents
High-precision positioning vehicle-mounted equipment, intelligent cabin and vehicle Download PDFInfo
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- CN112422143A CN112422143A CN202011214499.8A CN202011214499A CN112422143A CN 112422143 A CN112422143 A CN 112422143A CN 202011214499 A CN202011214499 A CN 202011214499A CN 112422143 A CN112422143 A CN 112422143A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The invention provides high-precision positioning vehicle-mounted equipment, an intelligent cabin and a vehicle, which relate to the technical field of intelligent traffic and comprise the following steps: a housing, a circuit board and an antenna component; the circuit board is arranged in the shell, and the antenna component is arranged on the shell; the circuit board is connected with the antenna component; integrate all functional module of high accuracy location mobile unit on the circuit board, wherein, functional module includes: the system on chip comprises a microprocessor and a communication module; and the antenna component is used for supporting the high-precision positioning of the vehicle-mounted equipment to communicate with the external equipment. This high accuracy location mobile unit has adopted the integrated design theory, has that the integrated level is high, equipment is small and advantage with low costs, has effectively alleviated the technical problem that signal loss is big, equipment cost is high that high accuracy location mobile unit among the prior art exists.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to high-precision positioning vehicle-mounted equipment, an intelligent cabin and a vehicle.
Background
With the rapid development of the internet of vehicles, technologies such as intelligent driving, unmanned driving, automatic parking and the like are rapidly developed, vehicle-mounted equipment corresponding to the technologies is also continuously updated, high-precision positioning vehicle-mounted equipment is one of the technologies, and in the traditional high-precision positioning vehicle-mounted equipment, an antenna or a communication module of the traditional high-precision positioning vehicle-mounted equipment is separated from an equipment main body, so that the equipment has the technical problems of large volume, more radio frequency connecting devices, large signal loss and high equipment cost.
Disclosure of Invention
The invention aims to provide high-precision positioning vehicle-mounted equipment, an intelligent cabin and a vehicle, and solves the technical problems of high signal loss and high equipment cost of the high-precision positioning vehicle-mounted equipment in the prior art.
In a first aspect, an embodiment of the present invention provides a high-precision positioning vehicle-mounted device, including: a housing, a circuit board and an antenna component; the circuit board is arranged inside the shell, and the antenna component is arranged on the shell; the circuit board is connected with the antenna component; integrate on the circuit board all functional module of high accuracy location mobile unit, wherein, functional module includes: the system on chip comprises a microprocessor and a communication module; the antenna component is used for supporting the high-precision positioning vehicle-mounted equipment to communicate with external equipment.
In an optional embodiment, a first communication channel and a second communication channel are provided between the system on chip and the communication module, and the first communication channel includes: a local area network Ethernet channel; the second communication channel includes: a PCIe-at-speed channel or a USB-at-speed channel.
In an alternative embodiment, the communication module comprises at least one of: the system comprises a V2X communication module, a 2G/3G/4G/5G wide area network wireless communication module, a GPS/Beidou satellite positioning module and a Wifi/BT communication module.
In an alternative embodiment, the antenna component comprises at least one of: V2X antenna, 2G/3G/4G/5G antenna, GPS/Beidou antenna and Wifi/BT antenna.
In an alternative embodiment, the V2X antennas are evenly distributed around the sides of the housing; the 2G/3G/4G/5G antenna is arranged on the upper edge of the shell; the GPS/Beidou antenna is arranged at the top of the shell, and the isolation between the GPS/Beidou antenna and the rest antennas exceeds a preset threshold; the Wifi/BT antenna is arranged on the circuit board or in the vacant space of the shell.
In an alternative embodiment, the V2X antenna is disposed at an upper edge of the housing; the 2G/3G/4G/5G antennas are uniformly distributed on the periphery of the side face of the shell; the GPS/Beidou antenna is arranged at the top of the shell, and the isolation between the GPS/Beidou antenna and the rest antennas exceeds a preset threshold; the Wifi/BT antenna is arranged on the circuit board or in the vacant space of the shell.
In an alternative embodiment, the antenna component is in direct contact connection with the circuit board.
In an optional embodiment, a shielding case is arranged on the circuit board; if the Wifi/BT antenna of the high-precision positioning vehicle-mounted equipment is arranged on the circuit board, the shielding cover shields the area of the circuit board except the Wifi/BT antenna; if the Wifi/BT antenna is arranged at the vacant space of the shell, the circuit board is shielded by the shielding case.
In a second aspect, an embodiment of the present invention provides an intelligent cabin, where the high-precision positioning vehicle-mounted device described in any one of the foregoing embodiments is applied, and the intelligent cabin further includes: a central processing unit; and the high-precision positioning vehicle-mounted equipment is in communication connection with the central processing unit.
In a third aspect, an embodiment of the present invention provides a vehicle, where the high-precision positioning vehicle-mounted device described in any one of the foregoing embodiments is provided.
In the high-precision positioning vehicle-mounted equipment in the prior art, an antenna or a communication module is separated from an equipment main body, the equipment is large in size, a plurality of radio frequency connecting devices are arranged, and the technical problems of large signal loss and high equipment cost exist. Compared with the prior art, the invention provides high-precision positioning vehicle-mounted equipment, which comprises: a housing, a circuit board and an antenna component; the circuit board is arranged in the shell, and the antenna component is arranged on the shell; the circuit board is connected with the antenna component; integrate all functional module of high accuracy location mobile unit on the circuit board, wherein, functional module includes: the system on chip comprises a microprocessor and a communication module; and the antenna component is used for supporting the high-precision positioning of the vehicle-mounted equipment to communicate with the external equipment. This high accuracy location mobile unit has adopted the integrated design theory, has that the integrated level is high, equipment is small and advantage with low costs, has effectively alleviated the technical problem that signal loss is big, equipment cost is high that high accuracy location mobile unit among the prior art exists.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a high-precision positioning vehicle-mounted device according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of an alternative high-precision positioning vehicle-mounted device according to an embodiment of the present invention;
FIG. 3 is a functional block diagram of another alternative high-precision positioning vehicle-mounted device provided in the embodiment of the present invention;
FIG. 4 is a schematic diagram of an alternative V2X antenna surrounding a vehicle-mounted device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a specific placement position of an optional 2G/3G/4G/5G antenna in an in-vehicle device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a placement position of an optional GPS/beidou antenna according to an embodiment of the present invention;
fig. 7 is a schematic diagram of antenna distribution of a first method for positioning a vehicle-mounted device with high accuracy according to an embodiment of the present invention;
fig. 8 is a schematic diagram of antenna distribution of a second method for high-precision positioning of vehicle-mounted equipment according to an embodiment of the present invention;
fig. 9 is a schematic diagram of an alternative high-precision positioning vehicle-mounted device elastic sheet connection antenna according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
With the rapid development of the internet of vehicles, technologies such as intelligent driving, unmanned driving, automatic parking and the like are rapidly developed, and vehicle-mounted equipment corresponding to the technologies is also continuously updated, and high-precision positioning vehicle-mounted equipment is one of the technologies.
Example one
Fig. 1 is a schematic structural diagram of a high-precision positioning vehicle-mounted device according to an embodiment of the present invention, and as shown in fig. 1, the high-precision positioning vehicle-mounted device includes: a housing 1, a circuit board 2 (not shown in the figure) and an antenna component 3;
the circuit board 2 is arranged inside the shell 1, and the antenna component 3 is arranged on the shell 1; the circuit board 2 is connected to the antenna component 3.
Integrate all functional module of high accuracy location mobile unit on circuit board 2, wherein, functional module includes: system on a chip, microprocessor and communication module.
And the antenna component 3 is used for supporting the high-precision positioning of the vehicle-mounted equipment to communicate with the external equipment.
Specifically, the high-precision positioning vehicle-mounted device provided by the embodiment of the invention adopts an integrated design concept, and the antenna component 3 is designed on the shell 1, so that the space of the shell can be fully utilized, and a basic guarantee is provided for the integrated and miniaturized design of the whole machine, if the shell 1 is divided into the upper shell cover and the shell bottom, the shell bottom is used for fixing the high-precision positioning vehicle-mounted device to other devices (such as an automobile), and the antenna component 3 can be arranged on the inner side of the upper shell cover, so that the process is simple, the cost is low, and the installation and debugging are convenient.
In the embodiment of the present invention, in order to make the product design more compact and make the high-precision positioning vehicle-mounted device smaller in size, there is only one circuit board 2 inside the housing 1, as shown in fig. 2, all on-board devices such as a System-on-a-chip (SOC), a Microprocessor (MCU), and a communication module are integrated on one circuit board 2, and in addition, the circuit board 2 is provided with an input/output interface (I/O interface), which is an external interface of the high-precision positioning vehicle-mounted device and includes a CAN bus interface, a lan interface, a power supply interface, a USB interface, and the like.
The CAN bus is a main communication bus of the vehicle-mounted equipment, the high-precision positioning vehicle-mounted equipment CAN be connected with the vehicle-mounted sensor and the vehicle-mounted executing mechanism through the CAN bus, the vehicle-mounted sensor transmits acquired information to the microprocessor of the high-precision positioning vehicle-mounted equipment through the CAN bus, the MCU feeds back the information to the vehicle-mounted sensor or the executing mechanism through the CAN bus after processing, meanwhile, the MCU transmits some deeply processed information to the system on chip, and the SOC performs deep processing so as to make decisions, store, report to the cloud and the like.
The SOC is the core of the integrated high-precision positioning vehicle-mounted equipment, has extremely high processing speed in high-speed operation, and mainly completes the analysis and processing of communication receiving and transmitting information and related protocols, the analysis and processing of application layer protocols, the processing and execution of application functions, the processing and decision of CAN information, the sending of control instructions and the like. And the received information processing, the transmitted information processing and the communication control of the communication module all pass through the SOC.
The microprocessor MCU mainly completes the emergency rapid processing, decision making, control, power supply management and the like of the system, and mainly processes and feeds back CAN bus information, power supply time sequence management, emergency processing, control, execution and the like.
The main working principle of the high-precision positioning vehicle-mounted equipment provided by the embodiment of the invention is as follows: the SOC carries out wireless communication with external equipment through a communication module; the SOC is communicated with the MCU, the information obtained by the MCU from the CAN bus is subjected to upper layer processing, decision making and control, and meanwhile, an instruction is sent to the MCU for carrying out related decision making execution; the I/O interface completes all external wired interaction of the integrated high-precision positioning vehicle-mounted equipment.
In the high-precision positioning vehicle-mounted equipment in the prior art, an antenna or a communication module is separated from an equipment main body, the equipment is large in size, a plurality of radio frequency connecting devices are arranged, and the technical problems of large signal loss and high equipment cost exist. Compared with the prior art, the invention provides high-precision positioning vehicle-mounted equipment, which comprises: a housing 1, a circuit board 2 and an antenna component 3; the circuit board 2 is arranged inside the shell 1, and the antenna component 3 is arranged on the shell 1; the circuit board 2 is connected with the antenna component 3; integrate all functional module of high accuracy location mobile unit on circuit board 2, wherein, functional module includes: the system on chip comprises a microprocessor and a communication module; and the antenna component 3 is used for supporting the high-precision positioning of the vehicle-mounted equipment to communicate with the external equipment. This high accuracy location mobile unit has adopted the integrated design theory, has that the integrated level is high, equipment is small and advantage with low costs, has effectively alleviated the technical problem that signal loss is big, equipment cost is high that high accuracy location mobile unit among the prior art exists.
The structure of the high-precision positioning vehicle-mounted device provided by the embodiment of the invention is briefly described above, and other included features are described in detail below.
In an optional embodiment, a first communication channel and a second communication channel are provided between the system on chip and the communication module, and the first communication channel includes: a local area network Ethernet channel; the second communication channel includes: a PCIe-at-speed channel or a USB-at-speed channel.
In the prior art, only one communication channel is arranged between the SOC and the communication module, so that data cannot be processed quickly when data transmission tasks are multiple, and user experience is poor. In order to solve the above problem, two high-speed communication channels (a first communication channel and a second communication channel) are arranged between the SOC and the communication module, the first communication channel and the second communication channel have different data reading modes, and the first communication channel and the second communication channel can work in parallel, so that the data transmission rate is increased. Fig. 3 shows a functional block diagram of an alternative high-precision positioning vehicle-mounted device, as can be seen from fig. 3, one of the two high-speed communication channels is a local area network Ethernet channel, the SOC and the communication module are both connected to the local area network Ethernet HUB, and the SOC and the communication module communicate with each other through the local area Ethernet; another high-speed communication channel is a communication channel between the conventional SOC and the communication module, that is, a high-speed PCIe (peripheral component interconnect express) channel or a high-speed USB channel.
In an alternative embodiment, the communication module comprises at least one of: the system comprises a V2X communication module, a 2G/3G/4G/5G wide area network wireless communication module, a GPS/Beidou satellite positioning module and a Wifi/BT communication module.
Specifically, the communication module in the embodiment of the present invention supports communication functions such as V2X communication, 2G/3G/4G/5G communication, GPS/beidou positioning, WiFi/BT communication, and radio signal reception, and the received information processing, the transmitted information processing, and the communication control of the communication module all pass through the SOC.
Accordingly, in order to support a plurality of communication functions for positioning the in-vehicle device with high accuracy, the antenna section 3 thereof includes at least one of: V2X antenna, 2G/3G/4G/5G antenna, GPS/Beidou antenna and Wifi/BT antenna. In order to provide high-performance vehicle-mounted equipment, when the communication module simultaneously comprises a V2X communication module, a 2G/3G/4G/5G wide area network wireless communication module, a GPS/Beidou satellite positioning module and a Wifi/BT communication module, the antenna design of each module can refer to the following two optional modes:
the first method is as follows:
the V2X antennas are evenly distributed around the sides of the housing 1. According to the requirement of V2X, the high-precision positioning vehicle-mounted device provided by the embodiment of the invention preferably uniformly distributes V2X antennas around the shell 1, so that the V2X antennas of the vehicle-mounted device can well communicate with surrounding vehicles, roadside facilities and people, and the communication effect is excellent and the performance is best. FIG. 4 provides a schematic illustration of an optional V2X antenna surrounding the vehicle device when the high-precision positioning vehicle device is mounted in a vehicle.
The 2G/3G/4G/5G antenna is arranged on the upper edge of the shell 1. Since the 2G/3G/4G/5G antenna needs to communicate with the base station, the 2G/3G/4G/5G antenna is preferably arranged at the upper edge of the vehicle-mounted equipment, so that the 2G/3G/4G/5G antenna has good communication effect with the surrounding base stations, and the antenna has the best performance in the direction of the surrounding base stations. When the high-precision positioning vehicle-mounted device is installed on a vehicle, a schematic diagram of an optional 2G/3G/4G/5G antenna at a specific placement position of the vehicle-mounted device is provided in FIG. 5.
The GPS/Beidou antenna is arranged at the top of the shell 1, and the isolation degree of the GPS/Beidou antenna and the isolation degree of the other antennas exceed a preset threshold value. The GPS/Beidou antenna is used for directly receiving signals of the satellites on the sky, so the GPS/Beidou antenna needs to be arranged on the top of the vehicle-mounted equipment, is wide in periphery, is far away from the V2X and 2G/3G/4G/5G, WiFi/BT and the like, and has larger isolation degree with the antennas. When the high-precision positioning vehicle-mounted equipment is installed on a vehicle, a schematic diagram of the placement position of an optional GPS/Beidou antenna is provided in FIG. 6.
The Wifi/BT antenna is disposed on the circuit board 2 or at the vacant space of the housing 1. Specifically, the WiFi/BT antenna generally mainly communicates with the communication terminal of the driver and the passenger in the vehicle and other vehicle-mounted devices, and the communication distance is short, so the WiFi/BT antenna can be arranged on the circuit board 2 (directly designed on the PCB board or used on-board antennas in a wiring mode), and the WiFi/BT antenna is low in design cost, simple in process and capable of meeting actual requirements. Of course, if there is redundant antenna space on the housing 1 of the high-precision positioning vehicle-mounted device, the WiFi/BT antenna may also be designed at the vacant space of the housing 1 as long as there is sufficient isolation distance and isolation from other antennas.
The second method comprises the following steps:
the V2X antenna is arranged on the upper edge of the shell; the 2G/3G/4G/5G antennas are uniformly distributed on the periphery of the side face of the shell; the GPS/Beidou antenna is arranged at the top of the shell, and the isolation between the GPS/Beidou antenna and the rest antennas exceeds a preset threshold; the Wifi/BT antenna is arranged on the circuit board or in the vacant space of the shell.
In view of the fact that the GPS/Beidou antenna is easily influenced by the transmitting power of other antennas, the GPS/Beidou antenna in the first mode and the second mode is arranged at the top of the shell; aiming at the Wifi/BT antenna, the mode is the same as the mode I, and the Wifi/BT antenna can be arranged on a circuit board or in the vacant space of a shell; and if the positions of the V2X antenna and the 2G/3G/4G/5G antenna are interchanged, an antenna layout scheme with better performance can be provided for high-precision positioning of the vehicle-mounted equipment. Fig. 7 shows a schematic diagram of antenna distribution of the first mode for high-precision positioning of the vehicle-mounted device, and fig. 8 shows a schematic diagram of antenna distribution of the second mode for high-precision positioning of the vehicle-mounted device.
In order to optimize the performance of high-precision positioning vehicle-mounted equipment, the isolation among the antennas of each communication module should be maximized, and firstly, the physical distances among the antennas of the V2X antenna, the GPS/Beidou antenna, the 2G/3G/4G/5G antenna and the WiFi/BT antenna need to be guaranteed to be maximized, and meanwhile, the antennas are perpendicular to each other as much as possible in the polarization direction and the radiation direction, so that the maximization of the mutual isolation of the antennas can be guaranteed.
When the GPS/Beidou antenna is implemented specifically, layout is carried out according to a structure space and a directional diagram required by communication, when V2X, GPS/Beidou and 2G/3G/4G/5G, WiFi/BT are involved in simultaneous communication, the interference to the GPS/Beidou is minimum when V2X and 2G/3G/4G/5G, WiFi/BT are required to transmit, particularly the transmission power of 2G/3G/4G/5G and V2X is larger, meanwhile, the distance from the GPS/Beidou antenna is relatively close, the interference to the GPS/Beidou is maximum, particularly the interference to the 2G/3G/4G/5G transmission frequency and the relatively close frequency of the GPS/Beidou have the largest influence on the GPS/Beidou. Of course, in order to solve the interference of other antennas to the GPS/beidou, the remaining interference sources may be temporarily turned off, i.e., the remaining communication modules are disabled, during the time period of the GPS/beidou operation.
The antenna of many on-vehicle equipment and equipment main part separation, the centre needs radio frequency connecting wire and radio frequency connector to connect, and radio frequency connecting wire and radio frequency connector can attenuate the intensity of radio frequency signal, and this kind of design has many unfavorable factors such as with high costs, the reliability is low, bulky. In order to avoid signal loss and risk of failure due to the use of rf connection wires and rf connectors, in an alternative embodiment the antenna component is connected in direct contact with the circuit board.
Specifically, the antenna is fixed on the upper shell cover, the material of the antenna can be selected to be a steel sheet for carrying out integrated antenna design, the steel sheet antenna is provided with a contact spring pin, the spring pin can be directly pressed on the circuit board in a spring mode, and any radio frequency connecting line and radio frequency connecting device are not arranged between the antenna component and the circuit board. FIG. 9 provides a schematic diagram of an alternative high-precision positioning vehicle device dome antenna. When the antenna main part material is steel product, shell fragment and antenna main part can the integrated design, if the antenna main part is other materials or when laser direct structuring antenna, need carry out interface connection with main antenna and shell fragment.
As can be seen from the above description, when the high-precision positioning vehicle-mounted device is integrally designed, the antenna component and the circuit board are close to each other, and an interference signal of the circuit board easily interferes with the receiving antenna, so that the receiving sensitivity of the signal is reduced; meanwhile, when the transmitting antenna transmits, strong transmitting power exists, and the transmitting power can interfere the normal work of the circuit board and even cause the circuit board to lose efficacy. In view of this, in an alternative embodiment, a shielding can is provided on the circuit board; if the Wifi/BT antenna of the high-precision positioning vehicle-mounted equipment is arranged on the circuit board, the shielding cover shields the area of the circuit board except the Wifi/BT antenna; if the Wifi/BT antenna is arranged at the vacant space of the shell, the circuit board is shielded by the shielding case.
The design of the shielding cover increases the isolation between the circuit board and the antenna, so that the noise on the circuit board does not influence the receiving of the antenna, and the normal work of the circuit board cannot be influenced by the emission of the antenna, because the circuit board is shielded by the shielding cover, the radio frequency noise of the circuit board is shielded, and the radio frequency noise cannot radiate the outside, so that the antenna cannot receive the interference signal of the circuit board, further the antenna is prevented from being interfered by the noise on the circuit board, and the receiving sensitivity is ensured not to be influenced by the noise of the circuit board; similarly, because the circuit board is provided with a layer of shielding case, the transmission signal of the antenna is shielded outside by the shielding case, and the normal operation of the circuit board cannot be influenced by the transmitted radio frequency noise.
In summary, in the high-precision positioning vehicle-mounted device provided by the embodiment of the invention, the antenna components are mainly distributed at the top and around the shell, and all onboard devices such as the SOC, the MCU and the communication module are integrated on the same circuit board, so that the product is more compact and smaller in size; the antenna component and the circuit board are directly connected by the connection dependent structure, so that the signal loss and the risk of signal failure caused by the connection of a radio frequency connecting wire and a connector are avoided; the shielding scheme of the shielding case is adopted to realize strict radio frequency isolation, and avoid the interference of the circuit board on the antenna receiving and the interference of the antenna on the circuit board during high-power transmission. The high-precision positioning vehicle-mounted equipment provided by the invention realizes the miniaturization, low cost, high integration level, high performance and high reliability of the vehicle-mounted equipment, so that the vehicle-mounted equipment is smaller, has higher cost performance and simpler and more compact process, and has long-term significance for the design of vehicle-mounted equipment such as vehicle networking communication, intelligent driving, unmanned driving, automatic parking and the like.
Example two
The embodiment of the present invention further provides an intelligent cabin, where the high-precision positioning vehicle-mounted device provided in the first embodiment is applied to the intelligent cabin, and the intelligent cabin further includes: a central processing unit; and the high-precision positioning vehicle-mounted equipment is in communication connection with the central processing unit.
The intelligent passenger cabin can bring the intelligent experience of the whole driving process, the high-precision positioning vehicle-mounted equipment is adopted in the intelligent passenger cabin, the high-precision positioning vehicle-mounted equipment is in communication connection with the central processing unit of the intelligent passenger cabin, wired and/or wireless data interaction is carried out between the high-precision positioning vehicle-mounted equipment and the central processing unit, more convenience can be brought to drivers and passengers, and the user experience is better.
The embodiment of the invention also provides a vehicle, and the vehicle is provided with the high-precision positioning vehicle-mounted equipment provided by the first embodiment. That is, the high-precision positioning in-vehicle apparatus is mounted on a vehicle, which may be an automobile.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A high accuracy positioning mobile unit, comprising: a housing, a circuit board and an antenna component;
the circuit board is arranged inside the shell, and the antenna component is arranged on the shell; the circuit board is connected with the antenna component;
integrate on the circuit board all functional module of high accuracy location mobile unit, wherein, functional module includes: the system on chip comprises a microprocessor and a communication module;
the antenna component is used for supporting the high-precision positioning vehicle-mounted equipment to communicate with external equipment.
2. The high-precision-positioning in-vehicle apparatus according to claim 1,
a first communication channel and a second communication channel are arranged between the system on chip and the communication module, and the first communication channel comprises: a local area network Ethernet channel; the second communication channel includes: a PCIe-at-speed channel or a USB-at-speed channel.
3. The high-precision-positioning in-vehicle apparatus according to claim 1,
the communication module comprises at least one of the following: the system comprises a V2X communication module, a 2G/3G/4G/5G wide area network wireless communication module, a GPS/Beidou satellite positioning module and a Wifi/BT communication module.
4. The high-precision positioning vehicle-mounted device according to claim 1, wherein the antenna component comprises at least one of: V2X antenna, 2G/3G/4G/5G antenna, GPS/Beidou antenna and Wifi/BT antenna.
5. The high-precision-positioning in-vehicle apparatus according to claim 4,
the V2X antennas are uniformly distributed around the side face of the shell;
the 2G/3G/4G/5G antenna is arranged on the upper edge of the shell;
the GPS/Beidou antenna is arranged at the top of the shell, and the isolation between the GPS/Beidou antenna and the rest antennas exceeds a preset threshold;
the Wifi/BT antenna is arranged on the circuit board or in the vacant space of the shell.
6. The high-precision-positioning in-vehicle apparatus according to claim 4,
the V2X antenna is arranged at the upper edge of the shell;
the 2G/3G/4G/5G antennas are uniformly distributed on the periphery of the side face of the shell;
the GPS/Beidou antenna is arranged at the top of the shell, and the isolation between the GPS/Beidou antenna and the rest antennas exceeds a preset threshold;
the Wifi/BT antenna is arranged on the circuit board or in the vacant space of the shell.
7. The high-precision positioning vehicle-mounted device according to claim 1, wherein the antenna component is in direct contact connection with the circuit board.
8. The high-precision positioning vehicle-mounted device according to claim 1, wherein a shielding case is arranged on the circuit board;
if the Wifi/BT antenna of the high-precision positioning vehicle-mounted equipment is arranged on the circuit board, the shielding cover shields the area of the circuit board except the Wifi/BT antenna;
if the Wifi/BT antenna is arranged at the vacant space of the shell, the circuit board is shielded by the shielding case.
9. An intelligent cabin, characterized in that the intelligent cabin applies the high-precision positioning vehicle-mounted device of any one of the above claims 1 to 8, and further comprises: a central processing unit;
and the high-precision positioning vehicle-mounted equipment is in communication connection with the central processing unit.
10. A vehicle, characterized in that the vehicle is provided with the high-precision positioning vehicle-mounted device of any one of the claims 1 to 8.
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| CN202011214499.8A CN112422143B (en) | 2020-11-03 | 2020-11-03 | High-precision positioning vehicle-mounted equipment, intelligent cabin and vehicle |
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| CN202011214499.8A CN112422143B (en) | 2020-11-03 | 2020-11-03 | High-precision positioning vehicle-mounted equipment, intelligent cabin and vehicle |
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| CN112422143A true CN112422143A (en) | 2021-02-26 |
| CN112422143B CN112422143B (en) | 2022-11-08 |
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| CN112422143B (en) | 2022-11-08 |
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