Vehicle-mounted remote communication terminal and vehicle

Abstract

The utility model provides a vehicle-mounted remote communication terminal and a vehicle. The terminal is applied to the technical field of vehicles. The terminal comprises a control system, a communication system and an antenna system, the communication system is connected with the control system; the antenna system comprises an antenna control module and a plurality of antenna groups, and the plurality of antenna groups are located at different positions of a vehicle; the antenna control module is connected with the control system; the antenna group is connected to the communication system through the antenna control module. According to the terminal, the communication function can work normally, stable communication connection is provided, and the reliability is high.

Description

Technical Field

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

[0002] In the Internet of Vehicles system, the telematics terminal (Telematics-BOX, T-Box, also known as the vehicle terminal) is used to communicate between the Internet server and the vehicle's central control host. Traditional telematics terminals are only equipped with a communication module and a set of shark fin antennas. In the event of a rollover accident, the shark fin antenna is easily damaged, which in turn causes the vehicle's communication function to fail. Although some T-BOXs have built-in antennas integrated as backup, due to poor performance, they can only provide limited signal coverage and cannot guarantee a stable communication connection. Utility Model Content

[0003] The present application provides a vehicle-mounted remote communication terminal and a vehicle, wherein the terminal can ensure the normal operation of the communication function, provide a stable communication connection, and have high reliability.

[0004] In a first aspect, a vehicle-mounted remote communication terminal is provided, which is applied to a vehicle, and the terminal comprises:

[0005] A control system, a communication system and an antenna system; the communication system is connected to the control system;

[0006] The antenna system includes an antenna control module and a plurality of antenna groups, wherein the plurality of antenna groups are located at different positions of the vehicle; the antenna control module is connected to the control system;

[0007] The antenna group is connected to the communication system through the antenna control module.

[0008] In the above manner, by setting an antenna control module and multiple antenna groups in the antenna system, and the multiple antenna groups are located at different positions of the vehicle, the interference between the multiple antenna groups can be reduced. Moreover, the antenna control module is connected to the control system, and the multiple antennas in the antenna group are connected to the communication system through the antenna control module; thus, the multiple antennas in the multiple antenna groups can be selectively connected to the antenna of the communication system; thus, by setting up multiple antennas to achieve redundant backup of the antenna, in the event that the shark fin antenna is damaged due to a rollover accident of the vehicle, the other antennas can still ensure the normal operation of the communication function, provide a stable communication connection, and have high reliability.

[0009] In combination with the first aspect, in some possible implementations, the antenna group includes multiple antennas; the multiple antennas are independently connected to the communication system; any one of the multiple antennas is used to send and receive data, and the other antennas are used to receive data, and the other antennas are antennas among the multiple antennas except any one of the antennas.

[0010] In the above scheme, multiple antenna groups are set in the antenna system, and multiple antennas in the same group are independently connected to the communication system. Some of the multiple antennas in the same group can be in use and others can be in test state. For example, antennas with higher signal strength are in use, and antennas with lower signal strength are in test state. The antennas with stronger signals in the antenna group that is not in use automatically replace the antennas with weaker signals in use, so that the antennas connected to the communication system maintain higher signal strength and can maintain the stability of communication. Moreover, in an antenna group, one antenna sends and receives data, and other antennas receive data, which can improve the accuracy of the antenna receiving and sending data.

[0011] In combination with the first aspect, in some possible implementations, the antenna control module includes: an antenna diagnosis unit and a switch switching unit;

[0012] The first end of the antenna diagnosis unit is connected to the antenna group, the second end is connected to the first end of the switch switching unit, and the third end is connected to the control system;

[0013] The number of the switch switching units is equal to the number of the antenna groups and corresponds one to one. The second end of the switch switching unit is connected to the communication system, and the third end of the switch switching unit is connected to the control system.

[0014] In the above scheme, multiple antenna groups are independently connected through different switch switching units, and when the communication performance of one antenna group is poor, it can be switched to other antenna groups with better communication performance, thereby maintaining the stability of communication.

[0015] In combination with the first aspect, in some possible implementations, the switch switching unit corresponding to the non-faulty antenna among the multiple antennas is automatically closed to enable the connection between the non-faulty antenna and the communication system.

[0016] In the above scheme, the antenna diagnostic unit is connected to the antenna combination switch unit, so that it is possible to detect whether the antenna group has a fault, and the switch unit turns on or off the connection between the antenna group and the communication system. In this way, the antenna without faults can be connected to the communication system, and the antenna in abnormal state such as short circuit, open circuit, etc. can be disconnected, thereby improving the communication effect between the antenna and the communication system.

[0017] In combination with the first aspect, in some possible implementations, the communication system includes: a module processing module and a plurality of communication modules; wherein:

[0018] The first end of the communication module is connected to the first end of the module processing module, and the second end is connected to the user identity card; the second end of the module processing module is connected to the domain controller of the vehicle, and the third end of the module processing module is connected to the control system; the number of the communication modules and the user identity cards is equal and corresponds one to one, and different user identity cards correspond to different communication networks.

[0019] In the above scheme, multiple communication modules are respectively connected to multiple user identity cards, and different user identity cards correspond to different communication networks. When a communication module or identity card fails or fails to work properly, other communication modules and identity cards are still available, which can ensure that the vehicle's communication function is not affected, effectively improving the stability and fault tolerance of the vehicle system.

[0020] In combination with the first aspect, in some possible implementations, the third end of the communication module is connected to the switch switching unit in the antenna control module, and when the switch switching unit is in an on state, the path between the communication module and the antenna group corresponding to the switch switching unit is connected.

[0021] In the above scheme, by connecting the third end of the communication module to the switch switching unit, the connection between the communication module and the antenna can be turned on and off by closing and opening the switch switching unit, thereby enabling an unobstructed antenna to access the communication module and at the same time disconnecting the connection between an antenna with an obstacle and the communication module, thereby improving the communication stability between the antenna and the communication module.

[0022] In combination with the first aspect, in some possible implementations, the switch switching unit includes multiple switch modules, and the number of the multiple switch modules is the same as the number of the multiple antennas in the antenna group and corresponds one to one; wherein the switch module includes a switch controller and multiple switches, and the number of the multiple switches is the same as the number of the multiple communication modules and corresponds one to one.

[0023] In the above scheme, by setting up multiple switches to be connected one-to-one with antennas and multiple communication modules respectively, multiple antennas in the antenna group can support independent control and management, so that the antenna system can adapt to communication networks of different scales and layouts, and achieve higher capacity and coverage, effectively enhancing the flexibility and scalability of the antenna system.

[0024] In combination with the first aspect, in some possible implementations, the first end of the switch is connected to the antenna, the second end of the switch is connected to the receiving end of the corresponding communication module, and the third end of the switch is connected to the switch controller.

[0025] In the above scheme, the switch controller can turn on the antenna connected to the first end of the switch and the communication module connected to the second end by controlling the closed switch; at the same time, the switch controller can also disconnect the antenna connected to the first end of other switches and the communication module connected to the second end of other switches by disconnecting other switches among the multiple switches, thereby avoiding unnecessary interference and effectively improving the performance and signal quality of the antenna system.

[0026] In combination with the first aspect, in some possible implementations, the terminal also includes: a power management system, a first end of the power management system is connected to the control system, a second end is connected to a backup battery, and a third end is connected to an original battery of the vehicle.

[0027] In the above solution, the power management system switches the original battery and the backup battery in time.

[0028] To ensure the normal operation of the terminal under various working conditions.

[0029] In a second aspect, a vehicle is provided, comprising the vehicle-mounted remote communication terminal provided in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a vehicle-mounted remote communication terminal provided in an embodiment of the present application;

[0031] Figure 2 is another structural schematic diagram of a vehicle-mounted remote communication terminal provided by an embodiment of the present application;

[0032] Figure 3 is another structural schematic diagram of a vehicle-mounted remote communication terminal provided in an embodiment of the present application;

[0033] Figure 4 is another structural schematic diagram of a vehicle-mounted remote communication terminal provided in an embodiment of the present application;

[0034] Figure 5 It is a schematic diagram of the structure of a switch module provided in an embodiment of the present application;

[0035] Figure 6 It is a schematic diagram of the composition structure of a vehicle-mounted remote communication terminal provided in an embodiment of the present application;

[0036] Figure 7 It is another schematic diagram of the composition structure of a vehicle-mounted remote communication terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0038] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0039] In the related art, the remote communication terminal realizes remote communication by being equipped with a communication module and a group of shark fins, or integrating a built-in antenna as a backup inside the antenna remote communication terminal. However, due to the poor performance of the built-in antenna, it can only provide a limited signal coverage range, so when the vehicle rolls over, the built-in antenna cannot provide a stable remote communication connection. To solve this problem, in the embodiment of the present application, an antenna control module and multiple antenna groups are set in the antenna system, and the multiple antenna groups are located at different positions of the vehicle, the antenna control module is connected to the control system, and the multiple antennas in the antenna group are connected to the communication system through the antenna control module; in this way, compared with the related art that can only communicate through a communication module and a group of shark fins, or can only communicate through the built-in antenna when the shark fin is damaged, in the embodiment of the present application, multiple antennas of multiple antenna groups can selectively access the antenna of the communication system; in this way, by setting up multiple antennas to achieve redundant backup of the antenna, even if the shark fin antenna is damaged due to a rollover accident of the vehicle, the other antennas can still ensure the normal operation of the communication function, instead of only being able to communicate through the built-in antenna with poor performance, so by setting up multiple antennas to achieve redundant backup of the antenna, a stable communication connection can be provided with high reliability.

[0040] The following is an introduction to the structure of the vehicle-mounted remote communication terminal provided in the embodiment of the present application. Figure 1 is a structural diagram of a vehicle-mounted remote communication terminal provided by an embodiment of the present application. Figure 1 The terminal 100 includes: a communication system 101, an antenna system 102 and a control system 103, the antenna system 102 is connected to the communication system 101, and the communication system 101 is connected to the control system 103.

[0041] For vehicles, the communication system 101 enables the vehicle to connect to external communication networks, such as mobile networks, Bluetooth, and wireless network communication technology (Wi-Fi), etc. This connection can provide car owners and passengers with functions such as mobile phone connection, in-vehicle entertainment, information transmission, and Internet access; the communication system 101 can also cooperate with the Global Positioning System (GPS) to receive satellite signals and provide navigation and location services for the vehicle. Through integration with map data, traffic information, and navigation applications, the vehicle can obtain real-time navigation instructions, traffic status updates, and optimal route planning, etc.; the communication system 101 of some vehicles also supports remote control functions, allowing car owners to use mobile phone applications or other remote devices to remotely start / stop the engine, lock / unlock the vehicle, adjust vehicle settings, etc.; in addition, the Internet of Vehicles technology also connects the vehicle to the Internet through the communication system 101 to achieve functions such as remote control, vehicle diagnosis, remote updates, and vehicle data transmission. In summary, the communication system 101 in the vehicle provides the vehicle owner and passengers with the function of connecting to the external communication network, including in-vehicle communication, navigation and location services, remote control and Internet of Vehicles, as well as vehicle diagnosis and maintenance, etc. These functions enhance the driving experience, safety and convenience of vehicle management.

[0042] The antenna system 102 can be used to receive and send wireless signals to achieve in-vehicle communication. For example, the vehicle receives GPS signals through the antenna system 102 to determine the location, and uses Bluetooth, Wi-Fi or mobile networks for mobile phone connection, in-vehicle entertainment and information transmission. The antenna system 102 can also receive radio signals such as AM / FM radio and satellite radio, so that the driver and passengers can listen to various radio programs. Through the antenna system 102, the owner can use the remote key or mobile phone application to remotely lock / unlock the vehicle, start the engine, adjust the vehicle settings, etc. In addition, the vehicle antenna is also used in the vehicle networking system, so that the vehicle can communicate with external Internet services, such as navigation updates, vehicle diagnostics, etc. The antenna system 102 can also be used to obtain satellite signals to support specific applications, such as satellite phones, remote monitoring and data transmission. In short, the antenna system in the vehicle plays an important role in receiving and sending wireless signals, covering multiple aspects such as communication, broadcasting, safety, auxiliary systems, vehicle networking and satellite communications, providing more functions and convenience for the vehicle.

[0043] The control system 103 can monitor and manage the running state of the vehicle's engine, obtain relevant data through sensors, and adjust according to driving conditions and environmental requirements. It can control parameters such as fuel supply, ignition time, and cylinder working order to provide efficient combustion and power output. The control system 103 can also monitor the vehicle's lateral acceleration, steering angle, tire grip and other data in real time through sensors. The control system 103 can also manage the vehicle's braking system. The control system 103 can also manage the vehicle's transmission and obtain data such as vehicle speed and engine speed through sensors. The control system 103 can also control and manage various electronic equipment and functions of the vehicle, including lights, wipers, air conditioning, audio, navigation system, etc. In short, the control system 103 in the vehicle realizes the management and control of the engine, vehicle stability, braking system, transmission, body electronics, etc. by integrating components such as control units, sensors and actuators.

[0044] like Figure 2 As shown, the antenna system 102 includes: an antenna control module 121 and multiple antenna groups 122 to 124, and the multiple antenna groups 122 to 124 are located at different positions of the vehicle; the antenna control module 121 is connected to the control system 103; and the antenna groups are connected to the communication system through the antenna control module.

[0045] Here, the multiple antenna groups may be at least two antenna groups. In the embodiment of the present application, three antenna groups may be provided, for example, antenna groups 122 to 124. The positions of the multiple antenna groups on the vehicle may be distributed at equal distances or at unequal distances. For example, antenna groups 122, 123, and 124 may be provided on the vehicle at intervals of 15 cm.

[0046] In some possible implementations, the antenna group includes multiple antennas; for example, each antenna group includes 4 antennas. Multiple antennas are independently connected to the communication system; in this way, multiple antenna groups are set in the antenna system, and multiple antennas in the same group are independently connected to the communication system, and multiple antennas in the same group can be partially in use and partially in test. For example, antennas with higher signal strength are in use, and antennas with lower signal strength are in test. By replacing antennas with weaker signals in the use state with antennas with stronger signals in the antenna group that is not in use, the antennas connected to the communication system maintain a higher signal strength and can maintain the stability of communication. In an antenna group, any one of the multiple antennas is used to send and receive data, and the other antennas are used to receive data, and the other antennas are antennas other than any of the multiple antennas; in this way, in an antenna group, one antenna is used to send and receive data, and the other antennas receive data, which can improve the accuracy of the antenna receiving and sending data.

[0047] The antenna control module 121 can be implemented by an antenna diagnostic unit and a plurality of switch switching units. When the network connection state of the antenna group is at a relatively strong signal strength, the path between the antenna group and the communication system is automatically connected; or, when the network connection state of the antenna group is at a relatively weak signal strength, the path between the antenna group and the communication system is automatically disconnected. The antenna control module 121 can connect all of the multiple antenna groups to the communication system, or can connect some of the antennas in the multiple antenna groups to the communication system. For example, according to the network connection state of the antenna group, the antenna with a higher signal strength automatically connects to the communication system. In this way, the antenna connected to the communication system has better communication performance and can provide stable communication functions.

[0048] In the embodiment of the present application, by setting an antenna control module and multiple antenna groups in the antenna system, and the multiple antenna groups are located at different positions of the vehicle, the interference between the multiple antenna groups can be reduced. In addition, the antenna control module is connected to the control system, and the multiple antennas in the antenna group are connected to the communication system through the antenna control module; in this way, the antenna that can be connected to the communication system can be automatically selected from the multiple antennas in the multiple antenna groups according to the signal strength of the antenna; in this way, by setting up multiple antennas to achieve redundant backup of the antenna, it is convenient for other antennas to ensure the normal operation of the communication function and provide a stable communication connection with high reliability when the shark fin antenna is damaged due to a rollover accident of the vehicle.

[0049] In some embodiments, the antenna control module 121 is implemented by an antenna diagnostic unit and a switch switching unit. Figure 3 As shown, the antenna control module 121 includes: an antenna diagnosis unit 301 and a switch switching unit 302; wherein:

[0050] The first end of the antenna diagnosis unit 301 is connected to the antenna group, the second end is connected to the first end of the switch unit 302, and the third end is connected to the control system;

[0051] The number of the switch units 302 is equal to the number of the antenna groups and corresponds one to one. The second end of the switch unit 302 is connected to the communication system, and the third end of the switch unit 302 is connected to the control system.

[0052] Here, the antenna diagnosis unit can be implemented by a diagnosis circuit. By connecting the first end of the antenna diagnosis unit 301 to the antenna group, it can diagnose the open circuit, short circuit and disconnection fault states of the antenna, that is, determine whether the antenna is in a state where it can be used normally. The third end of the antenna diagnosis unit 301 is connected to the control system, so that the diagnosed fault state can be uploaded to the switch switching unit, so that the switch switching unit automatically switches the on and off state.

[0053] A switch unit controls the on and off of an antenna group. For example, the antenna groups include: antenna group A, antenna group B, and antenna group C. Then antenna group A, antenna group B, and antenna group C correspond to different switch units. Moreover, for any antenna group, the switch unit corresponding to the antenna group can independently connect multiple antennas in the antenna group. In this way, multiple antenna groups are independently connected through different switch units, and when the communication performance of one antenna group is poor, it can be switched to other antenna groups with better communication performance, thereby maintaining the stability of communication.

[0054] In some possible implementations, the switch unit corresponding to the non-faulty antenna among the multiple antennas is automatically closed to enable the connection between the non-faulty antenna and the communication system.

[0055] Here, the antenna diagnostic unit 301 is used to detect whether the multiple antennas in the antenna group are faulty. The antenna diagnostic unit 301 determines whether the antenna in each antenna group is short-circuited, broken or open-circuited, and determines whether the antenna is faulty; and the switch switching unit corresponding to the antenna without fault is automatically closed to connect the antenna without fault to the communication system; in this way, the antenna without fault is connected to the communication system and enters the working state. At the same time, the switch switching unit corresponding to the antenna with fault is opened, so that the antenna with fault is in a non-working state, so that the antennas connected to the communication system are all fault-free antennas.

[0056] In the embodiment of the present application, the antenna diagnostic unit is connected to the antenna combination switch unit, so that it is possible to detect whether the antenna group has a fault, and according to whether the antenna is fault-free, the switch unit turns on or off the connection between the antenna group and the communication system. In this way, the antenna without fault can be connected to the communication system, and the antenna in an abnormal state such as short circuit or open circuit can be disconnected, thereby improving the communication effect between the antenna and the communication system.

[0057] In some embodiments, a communication system is implemented by applying a module processing module and a plurality of communication modules, such as Figure 4 As shown, the communication system 101 includes: a module processing module 401 and a communication module 402; wherein,

[0058] The first end of the communication module 402 is connected to the first end of the module processing module 401, and the second end is connected to the user identification card; the second end of the module processing module 401 is connected to the domain controller of the vehicle; the third end of the module processing module 401 is connected to the control system. The number of the communication modules 402 and the user identification cards is equal and one-to-one corresponding, and different user identification cards correspond to different communication networks. That is, different communication modules are connected to different user identification cards corresponding to different communication networks.

[0059] The third end of the communication module 402 is connected to the switch unit 302 in the antenna control module. When the switch unit 302 is in the on state, the path between the communication module 402 and the antenna group corresponding to the switch unit is connected.

[0060] In one embodiment, Figure 4 As shown, the second end of the module processing module 403 is connected to the domain controller 405 of the vehicle respectively.

[0061] Among them, the domain controllers include cockpit domain controller, power domain controller and body domain controller. The cockpit domain controller is responsible for the driver and passenger cabin functions inside the target vehicle, the power domain controller is responsible for the control of the power and transmission system of the target vehicle, and the body domain controller is responsible for the control of the safety and functional systems outside the target vehicle.

[0062] Among them, the Ethernet group includes one 10 Gigabit Ethernet and at least one Gigabit Ethernet. 10 Gigabit Ethernet and Gigabit Ethernet are high-speed network connection technologies, providing data transmission rates of 10Gbps and 1Gbps respectively. Through such a network connection, the module processing module can achieve high-speed data transmission and communication with the cockpit domain controller, power domain controller and body domain controller.

[0063] It should be noted that the use of the Ethernet group provides the terminal with flexible system scalability, which can easily add more domain controllers or other devices to the vehicle system to meet the growing demand and new technological developments; at the same time, through the unified connection standards of the Ethernet group, the expansion of the target vehicle's system architecture can be made simpler and more efficient.

[0064] In the embodiment of the present application, the module processing module is connected to the cockpit domain controller, the power domain controller and the body domain controller through an Ethernet group, realizing a unified data transmission standard between different domain controllers. This means that the same network protocol and communication interface can be used for data transmission, simplifying the complexity of system design and development, and the unified data transmission standard also helps to improve the reliability and stability of the system, and has a good use effect.

[0065] Multiple communication modules 402 respectively send the communication network strength signals of their corresponding user identity cards to the module processing module 401, and the module processing module 401 controls the target communication module to enter the working state. The target communication module is the communication module corresponding to the user identity card with the highest communication network strength signal.

[0066] In some possible implementations, the communication module is a wireless communication device for supporting mobile network connection. The communication module can be embedded in various devices, such as mobile phones, tablet computers, IoT devices, vehicles, etc., to achieve wireless communication between the device and the mobile network. The communication module has functions such as high-speed data transmission, broadband connection, low power consumption, multi-band and multi-mode support, high security and IoT connection, and can provide fast and stable wireless communication for various devices; the communication module can be a 5G communication module or a 4G / 3G / 2G communication module, which is not specifically limited in this embodiment.

[0067] In an embodiment of the present application, the communication module may be a 5G communication module.

[0068] The module processing module 401 may include a high-computing power processor, which is a processor that can efficiently complete a large number of computing tasks in a short period of time. It adopts advanced microprocessor architecture and design, combined with high-speed clock frequency and optimized instruction set, to achieve excellent computing performance and efficiency; and high-computing power processors are usually equipped with multi-core processing units, high-speed caches, and specially optimized computing accelerators and other functions, which can support the operation of complex algorithms, image processing, artificial intelligence and other computing-intensive tasks. The module processing module 401 provides the terminal with powerful computing power and processing performance, so that the terminal can meet the growing computing needs in the next few years, and at the same time provide sufficient processing reserves for more complex tasks and algorithms that may appear in the future.

[0069] Among them, different communication networks corresponding to different Subscriber Identification Modules (SIMs) mean that different Subscriber Identification Modules belong to different network operators; a network operator refers to a company or organization that provides telecommunication services, is able to build, manage and maintain communication infrastructure, and provides users with communication services such as telephone, Internet, and mobile communications.

[0070] In the embodiment of the present application, the communication networks corresponding to different user identity identification cards may also be the same, that is, different user identity identification cards belong to the same network operator, and this embodiment does not make specific limitations on this.

[0071] It should be noted that the communication module is provided with a user identity card slot. When a user identity card of a certain network operator is inserted into the user identity card slot of the communication module, the communication module can access the network operator corresponding to the user identity card.

[0072] In actual use, the number of communication modules can be three, and the three communication modules are respectively the first communication module, the second communication module and the third communication module. Correspondingly, the number of network operators is also three, and the three network operators are respectively China Mobile corresponding to the first user identity card, China Unicom corresponding to the second user identity card and China Telecom corresponding to the third user identity card. The three communication modules correspond to the three network operators one by one, that is, the first communication module is connected to the first user identity card, the second communication module is connected to the second user identity card, and the third communication module is connected to the third user identity card. In this way, multiple communication modules are respectively connected to multiple user identity cards, and different user identity cards correspond to different communication networks. When a communication module or identity card fails or cannot work properly, other communication modules and identity cards are still available, which can ensure that the communication function of the vehicle is not affected, and effectively improve the stability and fault tolerance of the vehicle system.

[0073] It should be noted that the communication module is connected to the module processing module through a specific interface, which can be UART (serial port), SPI (serial peripheral interface) or I2C (I 2 C bus interface), which is not specifically limited in this embodiment.

[0074] In some possible implementations, there is an initial correspondence between the communication modules in the multiple communication modules and the antenna groups in the multiple antenna groups, which may be one communication module corresponding to one antenna group, or one communication module corresponding to two or more antenna groups. The third end of the communication module is connected to the switch switching unit in the antenna control module. Since the switch switching unit and the antenna group are in a one-to-one correspondence, and the switch switching unit is a multi-way switch, the switch switching unit can connect the switch switching unit to the communication module by closing the switch corresponding to the unobstructed antenna in the antenna group, and while connecting the unobstructed antenna to the communication module, it can also disconnect the switch corresponding to the antenna with obstacles in the antenna group, so that the antenna with obstacles is in a non-working state, and will not affect the communication function. In this way, by connecting the third end of the communication module to the switch switching unit, it is possible to close and open the switch switching unit to conduct and disconnect the path between the communication module and the antenna, thereby enabling the unobstructed antenna to access the communication module, and at the same time, it is possible to disconnect the connection between the antenna with obstacles and the communication module, thereby improving the communication stability between the antenna and the communication module.

[0075] In some embodiments, the third end of the module processing module is connected to the control system, and the second end is connected to the domain controller of the vehicle, so that the module processing module can obtain the transmission status of the communication module and the network connection status of the antenna connected to the communication module, thereby automatically switching the working status of the communication module and the on-off status of the switch switching unit.

[0076] Here, the transmission state of the communication module is the packet rate of the communication module. For example, multiple communication modules are registered on the network respectively and the base station network is tested for packet (uploading and downloading small data packets) at a fixed frequency (for example, 60 seconds / time), so that the size of the packet rate obtained is used as the transmission state. The working state of the communication module includes: use state and idle state, wherein the use state means that the communication module is used for communication; the idle state means that the communication module does not communicate. The network connection state of the antenna connected to the communication module can be expressed as the size of the received signal strength of the antenna. The module processing module 401 performs packet detection on each communication module, and obtains the received signal strength of the antenna connected to the module, so as to automatically switch the working states of multiple communication modules according to the transmission state and the network connection state. The antenna connected to the communication module is automatically switched by the on-off state of the switch switching unit. For example, the communication modules A and B are currently in use, and the communication module C is in idle state. The MCU obtains the packet rate of the transmission state of the communication module C through the transmission state, which is higher than that of the communication module B. Then the communication module B switches from the use state to the idle state, and the communication module C switches from the idle state to the use state. At the same time, if the signal strength of the antenna connected to the communication module B is higher than the signal strength of the antenna connected to the communication module A or C, the antenna can be switched through the different on-off states of the switch switching unit at different contacts. In this way, by connecting the second end of the module processing module to the control system, the working state of the communication module and the on-off state of the switch switching unit can be switched in time through the transmission state of the communication module and the network connection state of the antenna connected to the communication module, so that the network communication state can be kept at the best, the stability of the signal connection is improved, and the signal delay is reduced.

[0077] In some possible implementations, since multiple communication modules and multiple user identity cards are provided, the user identity card with the highest communication network strength signal among the multiple communication network strength signals can be obtained through the communication network strength signals of the network operators to which the user identity cards corresponding to the multiple communication modules belong, that is, the target user identity card. The communication module corresponding to the target user identity card is the target communication module; the module processing module shuts down the other communication modules except the target communication module among the multiple communication modules through a specific interface, and the other communication modules except the target communication module among the multiple communication modules enter an idle state; the vehicle automatically switches to the network of the network operator with the highest communication network strength signal, thereby providing the vehicle with a more stable and reliable communication connection, and when the network operator base station in a certain area fails, the terminal can also quickly switch to other available network operators to avoid communication interruption, with high reliability.

[0078] In some embodiments, the antenna control module includes a plurality of switch switching units, the number of which is equal to the number of antenna groups and corresponds one-to-one, that is, one antenna group is connected to one switch switching unit. For each switch switching unit, the switch switching unit includes a plurality of switch modules, the number of which is equal to the number of antennas in the antenna group and corresponds one-to-one, that is, each antenna in the antenna group corresponds to a switch module. The switch module includes a switch controller and a plurality of switches, the number of which is equal to the number of communication modules and corresponds one-to-one. In this way, by setting a plurality of switches to be connected one-to-one with the antennas and the plurality of communication modules respectively, the plurality of antennas in the antenna group can support independent control and management, thereby enabling the antenna system to adapt to communication networks of different scales and layouts, and achieve higher capacity and coverage, effectively enhancing the flexibility and scalability of the antenna system. In a switch module, for any switch, the first end of the switch is connected to the antenna, the second end of the switch is connected to the receiving end of the corresponding communication module, and the third end of the switch is connected to the switch controller. Figure 5 As shown, one antenna 501 corresponds to one switch module 502, and the switch module 502 includes: a switch 51, a switch 52, a switch 53, and a switch controller 54. The first end of the switch 51 is connected to the antenna 501, the second end of the switch 51 is connected to the receiving end of the corresponding communication module A, and the third end of the switch 51 is connected to the switch controller 54. The first end of the switch 52 is connected to the antenna 501, the second end of the switch 52 is connected to the receiving end of the corresponding communication module B, and the third end of the switch 52 is connected to the switch controller 54. The first end of the switch 53 is connected to the antenna 501, the second end of the switch 53 is connected to the receiving end of the corresponding communication module C, and the third end of the switch 53 is connected to the switch controller 54. The switches 51, 52, and 53 can be implemented by a variety of electronic switches, and the embodiments of the present application do not specifically limit this. For example, the switches 51, 52, and 53 can be transistors, field effect transistors, or bistables, and the switch states can be switched according to the input of the control signal.

[0079] It should be noted that when multiple antennas need to work simultaneously, the switch controller 54 can also simultaneously control the closure of multiple switches corresponding to the multiple antennas. When multiple switches are closed, for any one of the multiple switches, the antenna connected to the first end of the switch is connected to the communication module connected to the second end of the switch, thereby turning on the multiple antennas and the multiple communication modules, so that the multiple antennas can transmit and receive data in parallel within the same time period, thereby increasing the network capacity of the antenna system and allowing users to enjoy higher data throughput and more stable connections.

[0080] In an embodiment of the present application, the switch controller can turn on the antenna connected to the first end of the switch and the communication module connected to the second end by controlling the closed switch; at the same time, the switch controller can also disconnect the antenna connected to the first end of other switches and the communication module connected to the second end of other switches by disconnecting other switches among the multiple switches, thereby avoiding unnecessary interference and effectively improving the performance and signal quality of the antenna system.

[0081] In some embodiments, Figure 6 As shown, the terminal further includes: a power management system 601, a first end of the power management system is connected to the control system, a second end is connected to a backup battery 602, and a third end is connected to an original battery 603 of the vehicle. In this way, the power management system 601 manages and controls the power supply of the terminal, for example, voltage regulation, current control, power protection, etc.

[0082] Among them, the power management system 601 has the core capabilities of power management and control. The main task of the power management system 601 is to monitor and manage the power supply required by the terminal; in this way, the power management system ensures the normal operation of the terminal in various working conditions by timely switching the original battery and the backup battery.

[0083] In some embodiments, with the popularization of intelligent driving and intelligent cockpits, vehicles have an increasing demand for large data streams, and at the same time have higher requirements for high reliability, low latency, and high-speed transmission. There are three mobile network operators in China, and the regionalization and layout of base stations are uneven, resulting in large differences in network status in different regions and operators.

[0084] Based on this, the embodiment of the present application designs a multi-module multi-antenna solution to improve the stability of the communication network in a high-speed data transmission state. Generally, multiple antenna systems concentrated together will interfere with each other. In order to prevent mutual interference between antennas, multiple antennas are arranged at different positions on the vehicle with reasonable distances. The antenna switching design method provided in the embodiment of the present application is to ensure that the antenna connection of the communication module and the operator is always maintained on the antenna with the best signal strength.

[0085] Figure 7 is a schematic diagram of the system structure of the vehicle-mounted remote communication terminal provided in an embodiment of the present application, such as Figure 7As shown, the multi-module multi-antenna system includes MCU701, a power management unit (Power Management Unit, PMU) 702, an antenna switch switching control unit 703, antenna group A, antenna group B, antenna group C, a multi-module data processing module 704, communication module A, communication module B, communication module C, operator 1 eSIM card, operator 2 eSIM card, operator 3 eSIM card, antenna connection status diagnostic circuit 705, backup battery 706, battery module 707 and data demander.

[0086] The multi-module data processing module 704 includes modules such as a processor, a memory, and a modem, which are used to implement data modulation and demodulation. The antenna group includes multiple antennas for receiving and sending signals. The power module 707 includes a power management module and a battery module, which are used to provide power support for the entire communication module.

[0087] exist Figure 7 In the example, the three groups of 12 antennas A, B, and C provide communication for the module. They are connected to the antenna switch control unit through a wiring harness. To prevent interference between antennas, the three groups of antennas are arranged in different locations of the vehicle.

[0088] The antenna switch control unit 703 is used to execute the switch selection of the antenna. Each antenna can be controlled separately, so that the antenna switching can be maintained and even if an antenna with abnormal connection status appears, the entire communication system can be kept in normal working condition.

[0089] Communication module A, communication module B, and communication module C are respectively configured with eSIM cards of three different operators.

[0090] The antenna switch switching control unit 703 is controlled by the MCU 701. The antenna connection status diagnosis circuit 705 detects the connection status of each antenna, and manages the antennas in abnormal status such as short circuit, open circuit, etc. to make them in a non-working state.

[0091] The multi-module data processing module 704 obtains the operator communication status and communication signal strength of different modules; the multi-module data processing module 704 sends the signal strength and other data to the MCU701.

[0092] like Figure 7 As shown, under normal communication conditions, the information obtained by the communication module from the base station includes base station information, communication frequency band, and communication signal strength (Reference Signal Receiving Power, RSRP) obtained from the base station; the four antennas corresponding to a single communication module function as one for sending and receiving data, and the other three antennas for receiving data.

[0093] At the initial power-on, the three communication modules are registered on the network and broadcast packets to the base station network at a fixed frequency (for example, 60 seconds / time) (i.e., upload and download small data packets) to test the current network communication transmission status (the two modules with the best communication transmission status can be selected by default). This confirms that communication module A and communication module B are in use at the current time and their corresponding antennas by default, and feeds this status back to the MCU. In addition to the packet broadcast test, communication module C will also perform a connection test on the working communication frequency bands of communication modules A and communication modules B to obtain the received signal strength of each remaining antenna (i.e., the antenna corresponding to communication module C) under the same communication frequency band, and send the initial data to the MCU.

[0094] The MCU determines the two modules (communication module A and communication module B) in use based on the result data status of the packet drop test of each module. For example, in a packet drop test, when the transmission status of communication module C is better than that of communication module A, communication module C is switched to the use status, and communication module A is switched to the test status to test the strength of the signal received by each antenna of communication module B and communication module C in the communication frequency band.

[0095] The MCU controls the antenna switch according to the strength of the received signals of each antenna under the same communication frequency band tested by module C (using four antennas 9-12), and replaces the polarized antenna with the weakest received signal among the antennas of modules A and B with the one with the best received signal strength among the antennas 9-12. The detection and switching are repeated in this way to ensure the quality of the received signal.

[0096] The MCU checks the communication status of each module and the strength of the received signal of each antenna, and continuously controls the switching of modules and antennas to keep them in the area with the best network status, thereby ensuring the stability of the signal connection and low latency.

[0097] In the embodiment of the present application, the switching control of the module and the antenna ensures that the module and the antenna with the best status are in use to ensure the stability of communication. The MCU obtains the module communication status and the current antenna received signal strength through the multi-module data processing module, and controls the module and antenna switch switching control according to the module communication status and the antenna received signal strength, and selects the module and antenna with the best receiving performance to be in use. By monitoring the module and antenna signal strength, the module and antenna with the best signal strength are switched in real time, and the network communication status is always kept in the best and most stable state.

[0098] It should be noted that the vehicle-mounted remote communication terminal provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the computer device can be divided into different functional modules to complete all or part of the functions described above.

[0099] An embodiment of the present application also provides a vehicle, which includes: the vehicle-mounted remote communication terminal provided in the above embodiment.

[0100] In this embodiment, the circuit can be divided into functional modules according to the above examples. For example, each functional module can be corresponded to, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0101] In the case of dividing each module according to each function, the device may also include a database acquisition module, a data query module, a database update module, a binding module, etc. It should be noted that all relevant contents of each module involved in the above embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0102] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0103] In the embodiments provided in the present application, it should be understood that the disclosed circuits and systems can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0104] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A vehicle-mounted remote communication terminal, characterized in that: The terminal comprises: A control system, a communication system and an antenna system; the communication system is connected to the control system; The antenna system includes an antenna control module and a plurality of antenna groups, wherein the plurality of antenna groups are located at different positions of the vehicle; the antenna control module is connected to the control system; The antenna group is connected to the communication system through the antenna control module.

2. The terminal according to claim 1, characterized in that The antenna group includes multiple antennas; the multiple antennas are independently connected to the communication system; any one of the multiple antennas is used to send and receive data, and the other antennas are used to receive data, and the other antennas are antennas other than any one of the multiple antennas.

3. The terminal according to claim 1, characterized in that: The antenna control module includes: an antenna diagnosis unit and a switch switching unit; The first end of the antenna diagnosis unit is connected to the antenna group, the second end is connected to the first end of the switch switching unit, and the third end is connected to the control system; The number of the switch switching units is equal to the number of the antenna groups and corresponds one to one. The second end of the switch switching unit is connected to the communication system, and the third end of the switch switching unit is connected to the control system.

4. The terminal according to claim 3, characterized in that: The switch switching unit corresponding to the non-faulty antenna among the plurality of antennas is automatically closed to enable the connection between the non-faulty antenna and the communication system.

5. The terminal according to any one of claims 1 to 4, characterized in that: The communication system comprises: a module processing module and a plurality of communication modules; wherein, The first end of the communication module is connected to the first end of the module processing module, and the second end is connected to the user identity card; the second end of the module processing module is connected to the domain controller of the vehicle, and the third end of the module processing module is connected to the control system; the number of the communication modules and the user identity cards is equal and one-to-one corresponding, and different user identity cards correspond to different communication networks.

6. The terminal according to claim 5, characterized in that: The third end of the communication module is connected to the switch switching unit in the antenna control module. When the switch switching unit is in the on state, the path between the communication module and the antenna group corresponding to the switch switching unit is connected.

7. The terminal according to claim 6, characterized in that: The switch switching unit includes multiple switch modules, the number of the multiple switch modules is the same as the number of the multiple antennas in the antenna group and corresponds one to one; wherein the switch module includes a switch controller and multiple switches, the number of the multiple switches is the same as the number of the multiple communication modules and corresponds one to one.

8. The terminal according to claim 7, characterized in that: The first end of the switch is connected to the antenna, the second end of the switch is connected to the receiving end of the corresponding communication module, and the third end of the switch is connected to the switch controller.

9. The terminal according to claim 1, characterized in that: The terminal further includes: a power management system, a first end of the power management system is connected to the control system, a second end is connected to a backup battery, and a third end is connected to an original battery of the vehicle.

10. A vehicle, characterized in that: It comprises the vehicle-mounted remote communication terminal as claimed in any one of claims 1 to 9.

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