Vehicle-mounted remote communication terminal circuit board and vehicle
By using a redundant backup design of two independent 5G modules in the vehicle-mounted remote communication terminal, the problem of communication interruption in areas with poor or no signal is solved, thus achieving stability and security of vehicle network communication.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU XIAOMA HUIXING TECH CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-05-15
AI Technical Summary
Existing vehicle-mounted remote communication terminals are prone to disconnection or slow connection in areas with poor or no signal, resulting in communication failure.
Two independent 5G modules are used as redundant backups to ensure that if one module fails, the other module can quickly switch over to achieve continuous signal transmission.
Signal switching is completed within microseconds to ensure uninterrupted network communication during vehicle operation and guarantee network security.
Smart Images
Figure CN224249903U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle hardware technology, and in particular to an in-vehicle remote communication terminal circuit board and a vehicle. Background Technology
[0002] The in-vehicle telematics box (TBOX), also known as the vehicle-mounted remote communication terminal, is an important component of the vehicle networking system. The TBOX is primarily used to communicate with backend systems / applications on mobile phones, enabling the display and control of vehicle information via the mobile application. However, if the vehicle travels to areas with poor or no signal, current in-vehicle telematics boxes may disconnect or connect very slowly, potentially causing the TBOX to fail to communicate. Summary of the Invention
[0003] Therefore, it is necessary to provide a vehicle-mounted remote communication terminal circuit board and vehicle to address the above-mentioned technical problems. The circuit board includes two independent 5G modules. If one of the modules fails, the other 5G module can serve as a redundancy backup, ensuring that signal transmission and interaction are not affected.
[0004] A vehicle-mounted remote communication terminal circuit board includes a first 5G module, a second 5G module, a first external connector, a second external connector, and a system-on-a-chip; wherein...
[0005] The first end of the first external connector is connected to the first end of the first 5G module, and the second end of the first external connector is connected to the first antenna.
[0006] The first end of the second external connector is connected to the first end of the second 5G module, and the second end of the second external connector is connected to the second antenna.
[0007] The second end of the first 5G module is connected to the first end of the system-on-a-chip.
[0008] The second terminal of the second 5G module is connected to the second terminal of the system-on-a-chip.
[0009] In one embodiment, the circuit board includes a Universal Serial Bus Interface (USB) expansion device, which includes multiple connection ports. A first end of the USB interface expansion device is connected to a third end of the system-on-a-chip (SoC), and the first end is any one of the multiple connection ports.
[0010] In one embodiment, the second end of the second 5G module is connected to the second end of the system-on-a-chip, including: the second end of the second 5G module is connected to the second end of the Universal Serial Bus Interface Extension Device, and the first end of the Universal Serial Bus Interface Extension Device is connected to the third end of the system-on-a-chip.
[0011] In one embodiment, the circuit board further includes a global navigation satellite module and a third external connector, with a first end of the global navigation satellite module connected to a first end of the third external connector, a second end of the global navigation satellite module connected to a third end of the universal serial bus interface expansion device, and a second end of the third external connector connected to a third antenna.
[0012] In one embodiment, the circuit board further includes a wireless communication module, a first end of which is connected to a third end of a third external connector, and a second end of which is connected to a fourth end of a system-on-a-chip.
[0013] In one embodiment, the circuit board further includes a vehicle-to-everything (V2X) communication module and a fourth external connector. The first end of the V2X communication module is connected to the first end of the fourth external connector, the second end of the V2X communication module is connected to the fourth end of the Universal Serial Bus Interface (USB) expansion device, and the second end of the fourth external connector is connected to the fourth antenna.
[0014] In one embodiment, the circuit board further includes: a dual data rate synchronous dynamic random access memory, a clock synchronization chip, a controller area network chip, an encryption chip, flash memory, and various switching power supplies, which are respectively connected to the system-on-a-chip.
[0015] In one embodiment, the circuit board further includes at least one third 5G module, each third 5G module being connected to a different third external connector, each third external connector being connected to a different antenna, and each third 5G module being connected to a Universal Serial Bus Interface (USB) extension device, which in turn connects to a system-on-a-chip (SoC).
[0016] In one embodiment, the first 5G module and the second 5G module, the first external connector and the second external connector, and the system-on-a-chip are isolated by a shield.
[0017] A vehicle is characterized in that it is equipped with an on-board remote communication terminal, and the on-board remote communication terminal is equipped with an on-board remote communication terminal circuit board as described above.
[0018] The aforementioned vehicle-mounted remote communication terminal circuit board uses two independent 5G modules, namely the first 5G module and the second 5G module. This ensures that if either 5G module malfunctions, the other 5G module can provide redundancy and backup. During this process, changes in signal status are completely imperceptible because the switching time interval of the vehicle system is on the microsecond level. Therefore, it does not affect signal transmission and interaction, thus ensuring network security during vehicle operation. Attached Figure Description
[0019] Figure 1This is a schematic diagram of the structure of the vehicle-mounted remote communication terminal circuit board in one embodiment;
[0020] Figure 2 This is a schematic diagram of the structure of a vehicle-mounted remote communication terminal circuit board in one embodiment. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0022] In one embodiment, such as Figure 1 As shown, a vehicle-mounted remote communication terminal circuit board 100 is provided. This circuit board 100 is configured in a vehicle-mounted remote communication terminal located in a vehicle. The vehicle-mounted remote communication terminal circuit board 100 includes a first 5G module 102, a second 5G module 104, a first external connector 106, a second external connector 108, and a system-on-a-chip 110, wherein:
[0023] The first end of the first external connector 106 is connected to the first end of the first 5G module 102, and the second end of the first external connector 106 is connected to the first antenna.
[0024] The first end of the second external connector 108 is connected to the first end of the second 5G module 104, and the second end of the second external connector 108 is connected to the second antenna.
[0025] The second end of the first 5G module 102 is connected to the first end of the system-on-a-chip 110;
[0026] The second terminal of the second 5G module 104 is connected to the second terminal of the system-on-a-chip 110.
[0027] In this embodiment, a vehicle-mounted remote communication terminal circuit board 100 is configured in a vehicle-mounted remote communication terminal, which is located in a vehicle and is used to control the vehicle and mobile devices. The vehicle-mounted remote communication terminal can also be called a vehicle-mounted T-BOX (Telematics BOX). The vehicle-mounted T-BOX is mainly used to communicate with the backend system / mobile APP to realize the display and control of vehicle information by the mobile APP.
[0028] The first 5G module 102 and the second 5G module 104 utilize fifth-generation mobile communication technology (5G), a new generation of broadband mobile communication technology characterized by high speed, low latency, and massive connectivity. 5G communication infrastructure serves as the network infrastructure for realizing the interconnection of humans, machines, and things. The first 5G module 102 and the second 5G module 104 are two separate modules, independent of each other, and can use different operators, but their signal processing procedures are identical.
[0029] The first external connector 106 and the second external connector 108 are used to connect the 5G module and the antenna. The first external connector 106 is connected to the first 5G module 102, and the other end is connected to the first antenna. It is used to receive the signal status of the first antenna and send it to the first 5G module 102. The first 5G module converts the received first signal into a first digital signal and sends it to the system-on-a-chip 110.
[0030] The second external connector 108 is connected to the second 5G module 104, and the other end is connected to the second antenna. It is used to receive the signal status of the second antenna and send it to the second 5G module 104. The second 5G module converts the received second signal into a second digital signal and sends it to the system-on-a-chip 110.
[0031] Furthermore, after receiving the first and second digital signals, the system-on-a-chip (SoC) 110 determines the strength of the signals, cuts off the channel corresponding to the weaker signal, and quickly switches to the stronger 5G signal to continue communication, providing a reliable network environment for data transmission in the vehicle's network. The SoC 110, abbreviated as SOC (System on Chip), is a highly integrated chip that integrates multiple processor cores, memory, peripheral devices, graphics processing units, etc., onto a single silicon chip. This integrated design not only improves processing efficiency but also significantly reduces power consumption and cost. SoCs are typically used to perform complex tasks such as advanced driver assistance systems (ADAS), autonomous driving, and in-vehicle infotainment systems.
[0032] Therefore, the vehicle-mounted remote communication terminal circuit board 100 uses two independent 5G modules, namely the first 5G module 102 and the second 5G module 104, to ensure that no matter which 5G module malfunctions, such as poor signal quality, module failure, power supply failure, or antenna failure, the other 5G module can serve as a redundancy backup. During this period, changes in signal status are completely imperceptible because the switching time interval of the vehicle system is on the microsecond level, thus not affecting signal transmission and interaction, thereby ensuring network security during vehicle operation.
[0033] In one embodiment, such as Figure 2 As shown, the circuit board 100 includes a Universal Serial Bus Interface (USB) expansion device 112, which includes multiple connection ports. The first end of the USB interface expansion device 112 is connected to the third end of the system-on-a-chip 110, and the first end is any one of the multiple connection ports.
[0034] The Universal Serial Bus Interface Expansion Device 112 is essentially a USB hub. Since the system-on-a-chip 110 does not have many ports for connection, the Universal Serial Bus Interface Expansion Device 112 is used to expand the connection ports. The Universal Serial Bus Interface Expansion Device 112 includes multiple connection ports. A first end is determined from the multiple connection ports and is used to connect to the third end of the system-on-a-chip 110. The other connection ports of the Universal Serial Bus Interface Expansion Device 112 are used to connect to other modules to achieve connection with the system-on-a-chip 110.
[0035] In one embodiment, such as Figure 2 As shown, the second terminal of the second 5G module 104 is connected to the second terminal of the system-on-a-chip, including:
[0036] The second end of the second 5G module 102 is connected to the second end of the universal serial bus interface expansion device 112, and the first end of the universal serial bus interface expansion device 112 is connected to the third end of the system-on-a-chip 110.
[0037] Among them, such as Figure 2 As shown, the first 5G module 102 can be directly connected to the system-on-a-chip 110, and the second 5G module 104 can be connected to the system-on-a-chip 110 through the Universal Serial Bus Interface Extension Device 112. Specifically, the second end of the second 5G module 102 is connected to the second end of the Universal Serial Bus Interface Extension Device 112, and the third end of the Universal Serial Bus Interface Extension Device 112 is connected to the third end of the system-on-a-chip 110.
[0038] In one embodiment, such as Figure 2As shown, the circuit board 100 also includes a global navigation satellite module 114 and a third external connector 116. The first end of the global navigation satellite module 114 is connected to the first end of the third external connector 116, the second end of the global navigation satellite module 114 is connected to the third end of the universal serial bus interface expansion device 112, and the second end of the third external connector 116 is connected to the third antenna.
[0039] Among them, such as Figure 2 As shown, the circuit board 100 also includes a global navigation satellite module 114 and a third external connector 116. The global navigation satellite module 114 is connected to a third antenna via the third external connector 116. The global navigation satellite module 114 can also be connected to the system-on-a-chip 110 via a universal serial bus interface expansion device 112. The global navigation satellite module 114 is a global navigation satellite system, a space-based radio navigation and positioning system that can provide users with all-weather 3D coordinates, velocity, and time information at any location on the Earth's surface or in near-Earth space.
[0040] In one embodiment, such as Figure 2 As shown, the circuit board 100 also includes a wireless communication module 118. The first end of the wireless communication module 118 is connected to the third end of the third external connector 116, and the second end of the wireless communication module 118 is connected to the fourth end of the system-on-a-chip 110.
[0041] The wireless communication module 118 includes Wi-Fi and Bluetooth. Wi-Fi is a trademark of the Wi-Fi Alliance manufacturers as a brand certification for their products. It is a wireless local area network communication technology based on the IEEE 802.11 standard. Bluetooth is an open global standard for wireless data and voice communication. It is a special short-range wireless technology connection based on low-cost short-range wireless connection to establish a communication environment for fixed and mobile devices.
[0042] Specifically, the wireless communication module 118 and the global navigation satellite module 114 share the third external connector 116. The first end of the wireless communication module 118 is connected to the third end of the third external connector 116, and the second end of the wireless communication module 118 is connected to the fourth end of the system-on-a-chip 110. It can be seen that the wireless communication module 118 is directly connected to the system-on-a-chip 110 without the need to use the universal serial bus interface expansion device 112.
[0043] In one embodiment, such as Figure 2As shown, the circuit board 100 also includes a vehicle network communication module 120 and a fourth external connector 122. The first end of the vehicle network communication module 120 is connected to the first end of the fourth external connector 122, the second end of the vehicle network communication module 120 is connected to the fourth end of the universal serial bus interface expansion device 112, and the second end of the fourth external connector 122 is connected to the fourth antenna.
[0044] Among them, such as Figure 2 As shown, the circuit board 100 also includes a vehicle network communication module 120 and a fourth external connector 122. The vehicle network communication module 120 is an on-board device in the vehicle that uses wireless communication technology to effectively utilize all vehicle dynamic information in the information network platform and provide different functional services during vehicle operation.
[0045] Specifically, the first end of the vehicle network communication module 120 is connected to the first end of the fourth external connector 122, and is connected to the fourth antenna through the fourth external connector 122. The second end of the vehicle network communication module 120 is connected to the fourth end of the universal serial bus interface expansion device 112, and is connected to the system-on-a-chip 110 through the universal serial bus interface expansion device 112.
[0046] In one embodiment, the circuit board 100 further includes: a dual data rate synchronous dynamic random access memory, a clock synchronization chip, a controller area network chip, an encryption chip, flash memory, and various switching power supplies, which are respectively connected to the system-on-a-chip 110.
[0047] The circuit board 100 may also include: a dual data rate synchronous dynamic random access memory, a clock synchronization chip, a controller area network chip, an encryption chip, flash memory, and various switching power supplies, which are respectively connected to the system-on-a-chip 110 to assist the system-on-a-chip 110.
[0048] Among them, dual data rate synchronous dynamic random access memory is a type of memory. The characteristic of memory is that it has a fast data access rate. A clock synchronization chip is an integrated circuit that can provide stable and accurate time information. It is mainly used in computers and other electronic devices to ensure that each component can complete its work according to the predetermined time.
[0049] Among them, the Controller Area Network (CAN) chip, also known as the CAN chip, is an asynchronous serial bus network used to connect devices, sensors, and actuators. It was originally designed to meet the requirements of high data transmission rates and high data integrity in automotive environments.
[0050] An encryption chip is an integrated circuit chip with independent key generation and data encryption / decryption capabilities, primarily used to protect data security. It has its own processor and memory, capable of executing various cryptographic algorithms for encryption / decryption calculations, storing keys, and handling sensitive data.
[0051] Flash memory is a type of non-volatile memory that retains data even when power is off. Its main applications include USB flash drives, solid-state drives, mobile phone storage, and digital camera memory cards. Switching power supplies are used to control the corresponding circuits.
[0052] In one embodiment, such as Figure 2 As shown, the circuit board 100 also includes at least one third 5G module 124. Each third 5G module 124 is connected to a different third external connector 126. Each third external connector 126 is connected to a different antenna. Each third 5G module 124 is connected to a Universal Serial Bus Interface Extension Device 112 and is connected to the system-on-a-chip 110 through the Universal Serial Bus Interface Extension Device 112.
[0053] The 5G module of the circuit board 100 includes not only the first 5G module 102 and the second 5G module 104, but also at least one third 5G module 124. The first 5G module 102, the second 5G module 104 and the third 5G module 124 are all independent 5G modules. Different 5G modules are connected to different antennas through different external connectors. Except for the first 5G module 102, which is directly connected to the system-on-a-chip 110, the other 5G modules can be connected to the system-on-a-chip 110 through the universal serial bus interface expansion device 112.
[0054] Specifically, each third 5G module 124 is connected to a different third external connector 126, each third external connector 126 is connected to a different antenna, and each third 5G module 124 is connected to a Universal Serial Bus Interface Extension Device 112, and is connected to a system-on-a-chip 110 through the Universal Serial Bus Interface Extension Device 112.
[0055] In one embodiment, the first 5G module and the second 5G module, the first external connector and the second external connector, and the system-on-a-chip are isolated by a shield. The first and second 5G modules can be referred to as radio frequency (RF) circuits, used to convert received signals into digital signals, and the system-on-a-chip can be referred to as a digital circuit. By isolating the RF circuits and digital circuits with a shield, the RF modules are effectively shielded, preventing mutual interference, interference from external signals, and interference to other surrounding functional modules. This also allows for product miniaturization, stable and reliable mounting within the vehicle, and effective communication with external modules via cables through a centralized wiring method. In one embodiment, a vehicle is equipped with an in-vehicle remote communication terminal, which is equipped with any of the aforementioned in-vehicle remote communication terminal circuit boards.
[0056] In this system, all key signals and modules of the vehicle-mounted remote communication terminal circuit board are compactly connected. The radio frequency circuit is short and straight, and the filter capacitors are all close to the chip pins for filtering. The power supply circuit has a small layout area, which ensures a small overall loop area and reduces power supply noise. The external communication connectors are all effectively arranged on the same side, which optimizes the cable exit method and solves the problem of messy cables caused by multiple exit directions.
[0057] In order to make efficient use of space, the bottom layer of the circuit board also inherits multiple ways of installing SIM cards to adapt to different SIM card standards in different regions, so that the vehicle-mounted remote communication terminal can flexibly switch between multiple operators; its screw holes are evenly distributed, which makes it easy to fix stably and reliably in the housing and inside the vehicle, effectively reducing the impact of environmental vibration and increasing the reliability of the vehicle-mounted remote communication terminal product.
[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0059] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A vehicle-mounted remote communication terminal circuit board, characterized in that, The circuit board includes a first 5G module, a second 5G module, a first external connector, a second external connector, and a system-on-a-chip; wherein... The first end of the first external connector is connected to the first end of the first 5G module, and the second end of the first external connector is connected to the first antenna. The first end of the second external connector is connected to the first end of the second 5G module, and the second end of the second external connector is connected to the second antenna. The second end of the first 5G module is connected to the first end of the system-on-a-chip. The second terminal of the second 5G module is connected to the second terminal of the system-on-a-chip.
2. The circuit board according to claim 1, characterized in that, The circuit board includes a Universal Serial Bus Interface (USB) expansion device, which includes multiple connection ports. A first end of the USB interface expansion device is connected to a third end of the system-on-a-chip (SoC), and the first end is any one of the multiple connection ports.
3. The circuit board according to claim 2, characterized in that, The second terminal of the second 5G module is connected to the second terminal of the system-on-a-chip, including: The second end of the second 5G module is connected to the second end of the Universal Serial Bus Interface (USB) expansion device, and the first end of the USB expansion device is connected to the third end of the system-on-a-chip (SoC).
4. The circuit board according to claim 2, characterized in that, The circuit board also includes a global navigation satellite module and a third external connector. The first end of the global navigation satellite module is connected to the first end of the third external connector, the second end of the global navigation satellite module is connected to the third end of the universal serial bus interface expansion device, and the second end of the third external connector is connected to the third antenna.
5. The circuit board according to claim 4, characterized in that, The circuit board also includes a wireless communication module, the first end of which is connected to the third end of the third external connector, and the second end of which is connected to the fourth end of the system-on-a-chip.
6. The circuit board according to claim 2, characterized in that, The circuit board also includes a vehicle network communication module and a fourth external connector. The first end of the vehicle network communication module is connected to the first end of the fourth external connector, the second end of the vehicle network communication module is connected to the fourth end of the universal serial bus interface expansion device, and the second end of the fourth external connector is connected to the fourth antenna.
7. The circuit board according to claim 1, characterized in that, The circuit board also includes: a dual data rate synchronous dynamic random access memory, a clock synchronization chip, a controller area network chip, an encryption chip, flash memory, and various switching power supplies, which are respectively connected to the system-on-a-chip.
8. The circuit board according to any one of claims 2-6, characterized in that, The circuit board also includes at least one third 5G module, each third 5G module is connected to a different third external connector, each third external connector is connected to a different antenna, each third 5G module is connected to the Universal Serial Bus Interface (USB) expansion device, and is connected to the system-on-a-chip (SoC) through the USB USB expansion device.
9. The circuit board according to claim 1, characterized in that, The first 5G module and the second 5G module, the first external connector and the second external connector, and the system-on-a-chip are isolated by a shield.
10. A vehicle, characterized in that, The vehicle is equipped with an on-board remote communication terminal, and the on-board remote communication terminal is equipped with an on-board remote communication terminal circuit board as described in any one of claims 1-9.