Communication domain controller based on light vehicle

Abstract

The utility model provides a communication domain controller based on a light vehicle. The communication domain controller comprises a micro-control unit, a microprocessor, a first communication module, a second communication module, an encryption module and a positioning module, wherein the first communication module, the encryption module, the microprocessor, the micro-control unit and the vehicle end device are connected in sequence to form a first data transmission channel; and the second communication module, the encryption module, the microprocessor, the micro-control unit and the vehicle end device are connected in sequence to form a second data transmission channel. The encryption of data in the first data transmission channel and the second data transmission channel is realized, the security of data transmitted through the first communication module and the second communication module is ensured, and the transmitted data is not easy to be crosstalk by other signals when being encrypted; and stable communication of the vehicle is ensured. Meanwhile, the positioning module transmits the positioning information through the first data transmission channel or the second data transmission channel, accurate transmission of the positioning information can be guaranteed, and accurate monitoring of the vehicle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle networking, and in particular to a communication domain controller based on a light vehicle. Background Art

[0002] With the rise of intelligent networking and intelligent driving, intelligent networked vehicles are equipped with advanced on-board sensors, controllers, actuators and other devices, and integrate modern communication and network technologies to realize intelligent information exchange and sharing between vehicles and X (people, vehicles, roads, background, etc.). They have complex environmental perception, intelligent decision-making, collaborative control and execution functions, and can achieve safe, comfortable, energy-saving and efficient driving, and eventually replace human operation. With the increase of related business functions of intelligent networked vehicles, the information flow that needs to be transmitted and processed inside the car will inevitably increase significantly. The existing "gateway + T-BOX + OBU" separate controller architecture is connected through CAN / LIN bus and traditional network cables, and the multiple physical layer conversion data communication efficiency is low, which cannot meet the requirements of high-efficiency forwarding of the network inside and outside the car. In addition, data transmission is easily interfered by other signals during data transmission, causing data transmission errors. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a communication domain controller based on a light vehicle to solve or partially solve the above problems.

[0004] Based on the above purpose, the utility model provides a communication domain controller based on a light vehicle, comprising:

[0005] A microcontrol unit, a microprocessor, a first communication module, a second communication module, an encryption module and a positioning module;

[0006] Wherein, the encryption module, the microprocessor, the micro control unit and the vehicle-end device are connected in sequence to form an encrypted transmission channel;

[0007] The first communication module and the encrypted transmission channel form a first data transmission channel;

[0008] The second communication module and the encrypted transmission channel form a second data transmission channel;

[0009] The positioning module is communicated with the first data transmission channel and the second data transmission channel respectively.

[0010] Optionally, the domain controller further includes a power management module, and the power management module is connected to the micro control unit and the microprocessor respectively.

[0011] Optionally, the domain controller further includes a memory, and the memory is connected to the microprocessor.

[0012] Optionally, the domain controller further comprises a switch and an Ethernet switch connected in sequence, one end of the switch is connected to the micro control unit, and one end of the Ethernet switch is connected to the first communication module;

[0013] The switch and the Ethernet switch are both connected to the vehicle connector of the vehicle-end device.

[0014] Optionally, the microprocessor is connected to a vehicle key sensor of the vehicle-end device.

[0015] Optionally, the micro control unit is connected to a start button of the vehicle-end device via an adapter.

[0016] Optionally, the domain controller further includes a wireless module, and the first communication module is connected to the wireless module.

[0017] Optionally, the micro control unit is connected to a gyro accelerometer sensor of the vehicle-end device.

[0018] Optionally, the first communication module is a 4G communication module.

[0019] Optionally, the second communication module is a V2X communication module.

[0020] As can be seen from the above, the utility model provides a communication domain controller based on a light vehicle, including: a micro control unit, a microprocessor, a first communication module, a second communication module, an encryption module and a positioning module; wherein, the utility model adopts a micro control unit and a microprocessor to jointly process data, which can realize the processing of a large number of information flows and improve the efficient forwarding requirements of the network inside and outside the vehicle. The first communication module, the encryption module, the microprocessor, the micro control unit and the vehicle-side device are connected in sequence to form a first data transmission channel; the second communication module, the encryption module, the microprocessor, the micro control unit and the vehicle-side device are connected in sequence to form a second data transmission channel. The encryption module realizes the encryption of data in the first data transmission channel and the second data transmission channel, ensuring the security of data transmitted through the first communication module and the second communication module. Since the transmitted data is encrypted, it is not easy to be interfered by other signals; ensuring stable communication of the vehicle. At the same time, the positioning module transmits positioning information through the first data transmission channel or the second data transmission channel, which can ensure the accurate transmission of positioning information and ensure accurate monitoring of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of a communication domain controller structure framework based on a light vehicle according to an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the circuit structure of a power module according to an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the circuit structure of the positioning module of an embodiment of the utility model;

[0025] Figure 4 The figure is a schematic diagram of the circuit structure of the encryption module of the embodiment of the utility model.

[0026] In the accompanying drawings,

[0027] 1. Microcontroller unit; 2. Microprocessor; 3. First communication module; 4. Second communication module; 5. Positioning module; 6. Adapter; 7. Power management module; 8. Ethernet switch; 9. Switch; 11. Gyro accelerometer sensor; 20. Encryption module; 21. Key slot; 22. Memory; 23. Memory chip; 31. Wireless module; 32. Encoder; 33. SD card; 41. Debugger; C249, first capacitor; C250, second capacitor; C252, third capacitor; C251, fourth capacitor; R315, first resistor; R316, second resistor; R317, third resistor; R318, fourth resistor; R321, fifth resistor; R322, sixth resistor; R319, seventh resistor; R320, eighth resistor; R323, ninth resistor; R32 4. The tenth resistor; R1. The eleventh resistor; R2. The twelfth resistor; R3. The thirteenth resistor; R4. The fourteenth resistor; R5. The fifteenth resistor; R6. The sixteenth resistor; C1. The fifth capacitor; C2. The sixth capacitor; C3. The seventh capacitor; C4. The eighth capacitor; C5. The ninth capacitor; R110. The seventeenth resistor; R109. The eighteenth resistor; R108. The nineteenth resistor; LED0. The third LED lamp; Q7. The transistor; R111. The twentieth resistor; C94. The tenth capacitor; C95. The eleventh capacitor; R124. The twenty-second resistor; R125. The twenty-first resistor; C103. The twelfth capacitor; R112. The twenty-third resistor; R115. The twenty-fourth resistor; R118. The twenty-fifth resistor; C101. The thirteenth capacitor; C102. The fourteenth capacitor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0029] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] With the future development trend of light vehicles towards intelligence, networking and sharing, the equipment EE architecture is required to have stronger computing and communication capabilities, that is, a new architecture domain controller is needed to replace the traditional architecture of bus network + distributed functional units to achieve software upgradeability, hardware replaceability, and sensor scalability, which means that the car under this architecture can have continuous software and hardware upgrade capabilities.

[0031] At present, the automotive industry generally believes that the automotive architecture has gradually evolved from distributed to domain-centralized, and the control functions have been rapidly centralized. The DCU (domain controller) integrated architecture based on domains has officially entered the historical stage. With the introduction of domain controllers, software will also be reclassified and integrated according to the corresponding functional domains. In-vehicle entertainment systems, human-vehicle interaction systems, and Internet of Vehicles systems will play an increasingly important role. Cars will no longer be just a pure means of transportation, but will have more electronic product attributes. The upgrade of the EE architecture decouples the software and hardware in the automotive controller, allowing the software to achieve OTA, while greatly improving the computing power and information transmission capacity of the in-vehicle controller. Different from the traditional automotive electronic distributed architecture, the domain controller divides the functions of various parts of automotive electronics into several fields, such as the power domain, chassis domain, cockpit domain, body electronics domain, assisted driving domain, etc., and then uses the relatively concentrated control domain of multi-core CPU / GPU chips with powerful processing capabilities to solve the growing development needs of vehicle-mounted electronics.

[0032] Under such an architecture, in order to achieve the upgrade of intelligent functions, it is necessary to increase the number of ECUs. However, with the rapid development of electric vehicle intelligence in recent years, simply increasing the number of ECUs can no longer solve the problem. Moreover, in the traditional automotive R&D and manufacturing field, different ECUs often come from different suppliers, and the computing power of each company is different, and the system software is also different, and many are still closed. This leads to the fact that if you want to achieve the later vehicle OTA, the early development coordination of these suppliers will be an extremely difficult task, whether it is the development cycle, or the manpower and cost costs will increase geometrically. In this context, if multiple traditional ECUs with similar functions can be concentrated in a controller with powerful computing power and resources, this controller is called a domain controller, so the domain here refers to the functional domain.

[0033] Different from the traditional distributed architecture of automotive electronics, the domain controller divides the functions of various parts of automotive electronics into several areas, such as power domain, chassis domain, cockpit domain, body electronics domain, assisted driving domain, etc., and then uses the relatively concentrated control domain of multi-core CPU / GPU chips with powerful processing capabilities to handle most of the functions originally belonging to each ECU, thereby meeting the growing development needs of on-board electronics of the entire vehicle.

[0034] The utility model is based on a communication domain controller for light vehicles. It focuses on the development trend of intelligentization, networking and sharing of light vehicle equipment. The intelligent networked communication domain controller can centralize the functions of the whole vehicle level in the communication domain. The concept of "domain" is to divide the electronic system inside the car into several functional blocks according to its function, and the domain controller is the leader of these functional blocks. The various systems in the domain are connected by communication lines, and different domains are interconnected by Ethernet as the backbone. The intelligent networked communication domain controller can meet the different needs of light tactical vehicles, support C-V2X direct communication and 5G mobile cellular communication functions, realize vehicle-to-vehicle (V2V), vehicle-to-road (V2I), and vehicle-to-cloud (V2N) collaboration, and can simultaneously meet the situational awareness information sharing of light vehicles and the security requirements of vehicle network data transmission. Through vehicle-to-vehicle communication (LTE-V) data sharing, the driver's reminder of the vehicle equipment in the unknown and complex working conditions, the storage and distribution of road information can be realized, laying the foundation for the unmanned driving of future vehicle equipment.

[0035] Based on the above purpose, refer to Figure 1 The utility model provides a communication domain controller based on a light vehicle, comprising:

[0036] Micro control unit 1, microprocessor 2, first communication module 3, second communication module 4, encryption module 20 and positioning module 5;

[0037] The encryption module 20, the microprocessor 2, the microcontroller unit 1 and the vehicle-side device are connected in sequence to form an encrypted transmission channel;

[0038] The first communication module 3 and the encrypted transmission channel form a first data transmission channel;

[0039] The second communication module 4 and the encrypted transmission channel form a second data transmission channel;

[0040] The positioning module 5 is communicated with the first data transmission channel and the second data transmission channel respectively.

[0041] Specifically, the microcontroller unit 1 adopts an MCU chip, the microprocessor 2 adopts an MPU chip, and the first communication module 3 is a 4G communication module, for example, using 4G communication or 5G communication technology. For example, the 4G communication module can adopt Quectel EC800MCN4G. The second communication module 4 is a V2X communication module, for example, using LTE-V communication technology, and the positioning module 5 adopts GNSS positioning technology. In the utility model, MCU and MPU are used to process data together, which can realize the processing of a large number of information flows and improve the efficient forwarding requirements of the network inside and outside the vehicle. The first communication module 3, the encryption module 20, the microprocessor 2, the microcontroller unit 1 and the vehicle-side device are connected in sequence to form a first data transmission channel; because the first communication module 3 adopts G4 communication or 5G communication technology to realize in-vehicle communication, the vehicle status information can be sent to the cloud platform to achieve the purpose of remote vehicle status monitoring, and during the information transmission process, data transmission is carried out through the encrypted first data transmission channel to ensure the stability of data transmission and the accurate monitoring of the vehicle. The second communication module 4 adopts LTE-V communication technology, which can realize intelligent information exchange and sharing between the car and X (people, cars, roads, background, etc.), and realize the information sharing process between the car and people, cars, roads or the cloud, and transmit data through the encrypted second data transmission channel to ensure the stability of data transmission and the stable communication between the car and the outside world; meet more needs of the vehicle. At the same time, the positioning module 5 transmits positioning information through the first data transmission channel or the second data transmission channel, which can ensure the accurate transmission of positioning information and the accurate monitoring of the vehicle. It can provide timely rescue in the event of an accident or danger to the vehicle.

[0042] like Figure 1As shown, for example, the microprocessor 2 and the microcontroller unit 1 are connected via USB and SPI interfaces; the encryption module 20 is connected to the microprocessor 2 via an I2C interface; the first communication module 3 is connected to the microcontroller unit 1 via interfaces such as UART and I2C, and the first communication module 3 is connected to the microcontroller unit 1 via a USB interface; the second communication module 4 is connected to the microprocessor 2 via interfaces such as USB, IO, and GPIO. The vehicle-side device can be connected to the microprocessor 2 and the microcontroller unit 1 via interfaces such as GPIO, ADC, RS232, I2C, and UART.

[0043] In some embodiments, the domain controller further includes a power management module 7, and the power management module 7 is connected to the micro control unit 1 and the microprocessor respectively.

[0044] Specifically, Figure 2As shown, the power management module 7 is used to power the microcontroller 1 and the microprocessor 2, and the power management module 7 includes a chip U0, and the chip U0 adopts SGMA056-6.8YPSBG / TR. The microprocessor 2 and the microcontroller 1 are powered by the power management module 7 to ensure the stable operation of the domain controller. The first pin of the chip U0 is connected with a first capacitor C249 and a second capacitor C250, the first capacitor C249 and the second capacitor C250 are connected in parallel, the first connection end of the first capacitor C249 and the second capacitor C250 is connected to the power interface VCC_5V_RAW and the first pin, and the second connection end of the first capacitor C249 and the second capacitor C250 is grounded; the second pin and the third pin of the U0 chip are connected with a first resistor R315 and a second resistor R316, the first resistor R315 and the second resistor R316 are connected in series, and the first resistor R315 and the second resistor R316 are connected in series. 15 is connected to the second pin, and one end of the second resistor R316 is connected to the third pin; two LED lamps (including the first LED lamp LED15 and the second LED lamp LED8) are connected in series between the first resistor R315 and the second resistor R316; a third resistor R317 and a fourth resistor R318 are connected to the second pin and the third pin of the U0 chip, and the third resistor R317 and the fourth resistor R318 are connected in series, one end of the third resistor R317 is connected to the second pin, and one end of the fourth resistor R318 is connected to the third pin; the second pin of the U0 chip is also connected to a fifth resistor R 321, the first resistor R315 and the third resistor R317 are arranged between the fifth resistor R321 and the second pin; the third pin of the U0 chip is also connected to the sixth resistor R322, the second resistor R316 and the fourth resistor R318 are arranged between the sixth resistor R322 and the third pin; the fourth pin of the U0 chip is connected to the seventh resistor R319 and the eighth resistor R320, one end of the seventh resistor R319 is connected to one end of the eighth resistor R320, and the fourth pin is connected to the connection end of the seventh resistor R319 and the eighth resistor R320; the fifth pin of the U0 chip is grounded, The sixth pin of the U0 chip is connected to the ninth resistor R323, the seventh pin of the U0 chip is connected to the tenth resistor R324, the tenth resistor R324 and the ninth resistor R323 are connected and grounded; the eighth pin of the U0 chip is connected to the third capacitor C252 and the fourth capacitor C251, the third capacitor C252 and the fourth capacitor C251 are connected in parallel, the first connection end of the third capacitor C252 and the fourth capacitor C251 is connected to the interface L1_ION_BAT and the eighth pin, and the second connection end of the third capacitor C252 and the fourth capacitor C251 is grounded.

[0045] like Figure 3As shown, the positioning module 5 (GNSS) includes a U13 chip and a U14 chip, the second pin of the U13 chip is connected to a seventeenth resistor R110, the third pin of the U13 chip is connected to an eighteenth resistor R109, a nineteenth resistor R108 and a third LED lamp LED0 which are connected in series in sequence, one end of the eighteenth resistor R109 is connected to the third pin, the third LED lamp LED0 is connected to the power interface of the micro control unit 1 or the GPS_3V3 of the second communication module 4, a transistor Q7 is further connected between the eighteenth resistor R109 and the nineteenth resistor R108, a first end of the transistor Q7 is connected to the line between the eighteenth resistor R109 and the nineteenth resistor R108, and the second The fourth pin of the U13 chip is connected to the twentieth resistor R111, and the other end of the twentieth resistor R111 is connected to the power interface of the micro control unit 1 or the GPS_3V3 of the second communication module 4. The fifth pin and the sixth pin of the U13 chip are connected to the corresponding pins of the micro control unit 1 or the second communication module 4 (GPS_USB_DM, GPS_USB_DP). The seventh pin of the U13 chip is connected to the tenth capacitor C94 and the eleventh capacitor C95 in parallel, and the first end of the tenth capacitor C94 and the eleventh capacitor C95 is connected to the seventh pin, and the first end is also connected to the power interface of the micro control unit 1 or the second communication module 4. The interface is connected, and the second end is grounded; the tenth pin, the eleventh pin and the twelfth pin of the U13 chip are connected and grounded, the thirteenth pin and the twenty-fourth pin of the U13 chip are connected and grounded, the eighteenth pin and the nineteenth pin of the U13 chip are connected with the U14 chip, and the first pin, the second pin, the third pin and the fourth pin of the U14 chip are connected to each other and grounded; the fifth pin of the U14 chip is connected to the nineteenth pin of the U13 chip, and a twenty-first resistor R125 is connected in series between the fifth pin of the U14 chip and the nineteenth pin of the U13 chip, the sixth pin of the U14 chip is connected to the eighteenth pin of the U13 chip, and the sixth pin of the U14 chip is connected to the A twenty-second resistor R124 is connected in series between the eighteenth pin of the U13 chip, and the eighth pin of the U14 chip is connected to the twelfth capacitor C103, one end of the twelfth capacitor C103 is grounded; the eighteenth pin, the nineteenth pin and the twentieth pin of the U13 chip are connected to the power interface of the microcontroller unit 1 or the pins corresponding to the second communication module 4 (GPS_12C_SDA, GPS_12C_SCL, GPS_TXD, GPS_RXD); the twentieth pin of the U13 chip is also connected to the twenty-third resistor R112; the twenty-first pin of the U13 chip is also connected to the twenty-fourth resistor R115; the twenty-second pin of the U13 chip is connected to the twenty-fifth resistor R118;The 23rd pin of the U13 chip is connected to the 13th capacitor C101 and the 14th capacitor in parallel, the first end of the 13th capacitor C101 and the 14th capacitor is connected to the 7th pin, the first end is also connected to the power interface of the micro control unit 1 or the second communication module 4, and the second end is grounded. ;

[0046] like Figure 4 As shown, the encryption module 20 includes a U1 chip, the seventh pin of the U1 chip is connected to an eleventh resistor R1, the other end of the eleventh resistor R1 is connected to the power supply end, and the seventh pin is also connected to the GPIO pin of the microprocessor 2; the 20th pin of the U1 chip is grounded, the twenty-ninth pin of the U1 chip is connected to a twelfth resistor R2, the sixth pin, the twenty-fifth pin and the thirty-second pin of the U1 chip are connected to each other, the sixth pin is connected to a fifth capacitor C1, a sixth capacitor C2 and a seventh capacitor C3, the fifth capacitor C1, the sixth capacitor C2 and the seventh capacitor C3 are connected in parallel, and the fifth capacitor C1, the sixth capacitor C2 and the seventh capacitor C3 are connected in parallel. The first end of the capacitor C3 is connected to the sixth pin, and the second end is grounded; the eighteenth pin of the U1 chip is connected to the ninth capacitor, the other end of the capacitor C5 is grounded, and the eighteenth pin is also connected to the power interface of the microprocessor 2; the nineteenth pin of the U1 chip is connected to the fourth capacitor C251, and the other end of the fourth capacitor C251 is grounded; the fifth pin, the twenty-first pin, the twenty-sixth pin and the thirty-first pin of the U1 chip are interconnected and grounded at the same time, and the twelfth pin, the eleventh pin, the sixteenth pin, the fifteenth pin, the thirteenth pin, the fourteenth pin and the seventeenth pin of the U1 chip are respectively connected to the microprocessor 2.

[0047] Specifically, the twelfth pin, the eleventh pin, the sixteenth pin, the fifteenth pin, the thirteenth pin, the fourteenth pin and the seventeenth pin of the U1 chip are respectively connected to the interfaces corresponding to SDDAT0, SDDAT1, SDDAT2, SDDAT3, SDCLK ​​and SDCMD of the microprocessor 2.

[0048] In some embodiments, Figure 1 As shown, the domain controller also includes a memory 22 , and the memory 22 is connected to the microprocessor 2 .

[0049] Specifically, the memory 22 may use 8GB EMMC storage to facilitate the storage of special data and temporary storage of vehicle-mounted key data in a cellular network.

[0050] Furthermore, the MPU is also connected to a storage chip 23, and the storage chip 23 adopts DDR3 to ensure stable operation of the MPU.

[0051] In some embodiments, Figure 1 As shown, the domain controller further includes a switch 9 and an Ethernet switch 8 connected in sequence, one end of the switch 9 is connected to the micro control unit 1, and one end of the Ethernet switch 8 is connected to the first communication module 3;

[0052] The switch 9 and the Ethernet switch 8 are both connected to the vehicle connector of the vehicle-side device.

[0053] Specifically, the vehicle status information is transmitted to the Ethernet switch 8, the switch 9, the micro control unit 1, the micro controller and the 4G communication module in sequence through the car connector, and the vehicle status information is transmitted to the platform through the 4G communication module to realize the monitoring of the vehicle status. The vehicle status may include vehicle speed, location information, etc.

[0054] In some embodiments, Figure 1 As shown, the microprocessor 2 is connected to the car key sensor of the vehicle-end device.

[0055] Specifically, the microprocessor 2 is used to receive a signal sent by a car key sensor of the vehicle-end device to control the vehicle according to the control signal.

[0056] In some embodiments, Figure 1 As shown, the micro control unit 1 is connected to the start button of the vehicle-end device through an adapter 6.

[0057] Specifically, the micro control unit 1 is connected to the start button via the adapter 6, and is used to receive a signal from the start button, and determine whether to start the vehicle according to the signal from the start button, thereby achieving control over the vehicle.

[0058] In some embodiments, Figure 1 As shown, the domain controller further includes a wireless module 31 , and the first communication module 3 is connected to the wireless module 31 .

[0059] Specifically, the first communication module 3 is connected to the wireless module 31, so that the first communication module 3 can be connected to an external network through a wireless network, thereby ensuring stable transmission of vehicle monitoring data.

[0060] Furthermore, if Figure 1 As shown, the first communication module 3 is also connected to an encoder 32, and the transmitted data can be encoded by the encoder 32. The first communication module 3 is also connected to an SD card 33, and the first communication module can be connected to the SD card 33 through an SD card socket, which is used to temporarily store the transmitted data when the first communication module 3 communicates. The first communication module 3 is also connected to a debugger, which is used to debug the communication process of the first communication module 3 to ensure the normal operation of the first communication module 3.

[0061] In some embodiments, Figure 1 As shown, the micro control unit 1 is connected to the gyro accelerometer sensor 11 of the vehicle-end device.

[0062] Specifically, the gyro accelerometer sensor 11 can use MPU6050. The gyro accelerometer sensor 11 is used to collect the speed and angle information of the vehicle, and send it to the switch 9 and the Ethernet switch 8 through the micro control unit 1, and the Ethernet switch 8 forwards it to the 4G communication module, and transmits it to the cloud platform to monitor the vehicle. In this way, it is ensured that the acquired vehicle status data can be stably transmitted to the cloud platform.

[0063] Furthermore, the second communication module 4 is also connected to a debugger 41, and the debugger 41 is used to debug the communication process of the second communication module 4 to ensure the normal operation of the second communication module 4.

[0064] Furthermore, the micro control unit 1 is also provided with a JTAV interface, and the micro control unit 1 can be tested through the JTAV interface to ensure stable operation of the micro control unit 1 .

[0065] It should be noted that the embodiments of the present invention can be further described in the following manner:

[0066] The utility model networked central domain controller is a pre-installed component, which is powered on at the same time as the body electrical equipment when the car is started. After the domain controller is powered on, the system power supply unit converts the 12V power supply of the battery in the car into the 5V, 3.3V, 1.8V, 1.5V and other DC voltages required by each unit in the system, and completes the power-on of the whole system in accordance with the power-on sequence specified in the design. After the power supply is stable and each functional module is powered on, the system enters the normal working mode. The utility model vehicle-mounted networked central domain controller can be applied to the vehicle-road collaborative scene, and the vehicle information can be transmitted to the cloud platform through the first data transmission channel; specifically, after the MCU obtains the vehicle status information (vehicle speed, positioning information (positioning is performed by the positioning module 5 (GNSS))), it is sent to the 4G communication module via the Ethernet switch 8, and then transmitted to the cloud platform to monitor the vehicle operation status; it can also obtain external road condition information through the second data transmission channel MPU and transmit it to the MCU, and then control the operation of the vehicle according to the external road condition.

[0067] It should be noted that the method of the embodiment of the utility model can be performed by a single device, such as a computer or a server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the utility model, and the multiple devices will interact with each other to complete the described method.

[0068] It should be noted that some embodiments of the utility model are described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0069] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0070] Although the present invention has been described in conjunction with specific embodiments of the present invention, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description. For example, other memory architectures may use the discussed embodiments.

[0071] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the scope of protection of the present invention.

Claims

1. A communication domain controller based on a light vehicle, characterized in that: include: A microcontrol unit (1), a microprocessor (2), a first communication module (3), a second communication module (4), an encryption module (20) and a positioning module (5); The encryption module (20), the microprocessor (2), the microcontroller unit (1) and the vehicle-end device are connected in sequence to form an encrypted transmission channel; The first communication module (3) and the encrypted transmission channel form a first data transmission channel; The second communication module (4) and the encrypted transmission channel form a second data transmission channel; The positioning module (5) is respectively connected to the first data transmission channel and the second data transmission channel.

2. The light vehicle-based communication domain controller according to claim 1, characterized in that: The domain controller also includes a power management module (7), and the power management module (7) is connected to the micro control unit (1) and the microprocessor (2) respectively.

3. The light vehicle-based communication domain controller according to claim 1, characterized in that: The domain controller also includes a memory (22), and the memory (22) is connected to the microprocessor (2).

4. The light vehicle-based communication domain controller according to claim 1, characterized in that: The domain controller further comprises a switch (9) and an Ethernet switch (8) connected in sequence, one end of the switch (9) being connected to the micro control unit (1), and one end of the Ethernet switch (8) being connected to the first communication module (3); The switch (9) and the Ethernet switch (8) are both connected to the vehicle connector of the vehicle-end device.

5. The light vehicle-based communication domain controller according to claim 1, characterized in that: The microprocessor (2) is connected to the vehicle key sensor of the vehicle-end device.

6. The light vehicle-based communication domain controller according to claim 1, characterized in that: The micro control unit (1) is connected to the start button of the vehicle-end device via an adapter (6).

7. The light vehicle-based communication domain controller according to claim 1, characterized in that: The domain controller also includes a wireless module (31), and the first communication module (3) is connected to the wireless module (31).

8. The light vehicle-based communication domain controller according to claim 1, characterized in that: The micro control unit is connected to the gyro accelerometer sensor (11) of the vehicle-end device.

9. The light vehicle-based communication domain controller according to claim 1, characterized in that: The first communication module (3) is a 4G communication module.

10. The light vehicle based communication domain controller according to claim 1, characterized in that: The second communication module (4) is a V2X communication module.

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