Signal detection device for intelligent driving domain decoupling

Abstract

An intelligent driving domain decoupling signal detection device disclosed by the present invention comprises a mainboard and an external interface module, the mainboard comprises an Ethernet signal processing module, a CAN signal processing module, a processing chip, a signal sending module and a display module, and the Ethernet signal processing module and the CAN signal processing module are respectively connected with the processing chip. The signal sending module is respectively connected with the Ethernet signal processing module and the CAN signal processing module, and the display module is respectively connected with the Ethernet signal processing module and the CAN signal processing module. The method has the advantages that various detected function signals are displayed through a graphical interface, and the accuracy of the intelligent driving function signals is verified in an interaction mode.

Description

Technical Field

[0001] The present invention relates to the field of automotive auxiliary equipment, and particularly to a signal detection device for decoupling the intelligent driving domain. Background Art

[0002] Whether it is the development of new automotive models or the improvement of the performance and reliability of existing automotive models, it is necessary to conduct tests and measurements on various parts of each vehicle to ensure the normal operation of all parts of the vehicle and provide safety guarantees. Among these automotive tests, intelligent driving domain testing is a very important part of automotive testing.

[0003] Currently, the automotive electronic and electrical architecture has evolved from the first-generation single-function controller architecture to the second-generation functional domain architecture. Generally, the vehicle functions are divided into five major functional domains: power domain, chassis domain, body domain, cockpit domain, and autonomous driving domain. In the verification and testing of intelligent driving domain functions, the correctness testing of vehicle intelligent driving domain signals is very important and necessary, which is the area that this application needs to focus on improving. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a signal detection device for decoupling the intelligent driving domain, which displays various detected functional signals through a graphical interface and verifies the accuracy of intelligent driving function signals through an interactive method.

[0005] To solve the above technical problems, the present invention provides a signal detection device for decoupling the intelligent driving domain, including a main board and an external interface module; the main board includes an Ethernet signal processing module, a CAN signal processing module, a processing chip, a signal sending module, and a display module. The Ethernet signal processing module and the CAN signal processing module are respectively connected to the processing chip, the signal sending module is respectively connected to the Ethernet signal processing module and the CAN signal processing module, and the display module is respectively connected to the Ethernet signal processing module and the CAN signal processing module; where: Ethernet signal processing module: Connects to the intelligent driving control module of the vehicle through an Ethernet converter, decouples the Ethernet signals obtained from the vehicle end, segments the Ethernet signals according to the Ethernet recognition matrix table, and imports each segment into the Ethernet signal stream; CAN signal processing module: Connects to the CAN bus of the vehicle, parses the CAN signals obtained from the vehicle end according to the DBC database file, parses the CAN signals into different signal streams, and all signal streams converge in a signal pool; including intelligent driving signal stream, autonomous driving ACC signal stream, ICA signal stream, and forward collision assistance signal stream; retrieves the signals required for different interfaces from the signal pool; Processing chip: Stores the Ethernet recognition matrix table, compares each Ethernet signal, and performs segmentation operations; Signal transmission module: Transmits the input signal to the Ethernet signal processing module and the CAN signal processing module respectively; Display module: Displays the Ethernet signal content and the CAN signal content through a graphical interface; The Ethernet signal processing module and the CAN signal processing module respectively send the Ethernet signal and the bus signal to the vehicle end through their respective interfaces. After the vehicle receives the corresponding signal, it issues a corresponding action response to detect the accuracy of the intelligent driving domain signal through interaction.

[0006] The Ethernet processing module fills the input signal into the corresponding position according to the position defined by each signal in the Ethernet matrix table to form a complete message, and sends it to the vehicle end through the Ethernet port.

[0007] The CAN signal processing module fills the signal into the corresponding position according to the position defined by each signal in the DBC file to form a complete message, and sends it to the vehicle end through the bus interface.

[0008] The CAN signal processing module obtains the signal sent by the first bus and the signal received by the second bus, analyzes them according to the DBC database file to obtain the two bus signals; the processing chip compares the signal actually sent by the first bus with the signal that it should send, so as to determine whether there is an error in the signal sent by the first bus; at the same time, it compares the signal received by the second bus with the signal actually sent by the second bus to determine whether there is an error during the transmission through the gateway.

[0009] The processing chip determines whether the signal value is consistent with the definition in the DBC database file to determine whether the signal is in error. The accuracy of the intelligent driving function signal is verified through interaction.

[0010] The Ethernet converter converts the in-vehicle Ethernet signal into a standard Ethernet signal.

[0011] The external interface module includes an Ethernet interface and at least one CAN bus interface.

[0012] The beneficial effects of the present invention are as follows: 1) Display various detected function signals through a graphical interface, which is convenient for observation and detection; 2) Interact with the signal source to verify the accuracy of the intelligent driving function signal through interaction; 3) Replace the HMI large screen of the real vehicle during the development of the intelligent driving function. Description of the Drawings

[0013] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings: Figure 1 is the circuit principle block diagram of a specific embodiment of the present invention;; Figure 2 is the circuit diagram of the CAN signal processing module of a specific embodiment of the present invention; Figure 3 is the process flow diagram of the Ethernet signal detection process of a specific embodiment of the present invention; Figure 4 is the process flow diagram of the CAN signal detection process of a specific embodiment of the present invention; Figure 5 is the process flow diagram for verifying the correctness of the CAN signal through interaction in a specific embodiment of the present invention; Description of the reference numerals in the figure 1—Test vehicle; 2—Ethernet converter; 3—External interface module; 4—Main board; 6—Ethernet signal processing module; 7—Processing chip; 8—CAN signal processing module; 9—Display module; 10—Signal sending module. Specific implementation manners

[0014] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] As Figure 1 shown, the present invention provides a signal detection device with decoupled intelligent driving domains, including a main board 4 and an external interface module 3.

[0016] The external interface module 3 includes an Ethernet interface, a two-way CAN bus interface, a USB interface, a Type-C interface, and a 12V DC power supply interface.

[0017] The main board 4 includes an Ethernet signal processing module 6, a CAN signal processing module 8, a processing chip 7, a signal sending module 10, and a display module 9. The Ethernet signal processing module 6 and the CAN signal processing module 8 are respectively connected to the processing chip 7, the signal sending module 10 is respectively connected to the Ethernet signal processing module 6 and the CAN signal processing module 8, and the display module 9 is respectively connected to the Ethernet signal processing module 6 and the CAN signal processing module 9.

[0018] As Figure 3As shown in the figure, the Ethernet signal processing module 6 is connected to the intelligent driving control module MPD of the vehicle 1 through an Ethernet interface and an Ethernet converter 2. It parses the Ethernet signals obtained at the vehicle end and segments the complete Ethernet signals according to the content carried in them based on the Ethernet recognition matrix table, and then imports each segment into the Ethernet signal stream. When the vehicle performs automatic parking, it parses the Ethernet signals obtained at the vehicle end, and obtains the signals related to automatic parking from the signal stream: target object signal, lane signal, parking space signal, gear and vehicle speed signal, and then graphically displays these signals in 3D animation on the screen. The display module 9 drives the graphical display on the screen. During the vehicle's automatic parking process, when the vehicle recognizes a parking space, by clicking on the parking space on the screen that it wants to park in and confirming, the vehicle will continue to park. The signal sending module 10 sends the selected parking space signal and the continue parking signal to the Ethernet signal processing module 6 and the CAN signal processing module 8. The Ethernet processing module 6 fills the signals into the corresponding positions according to the positions defined by each signal in the Ethernet matrix table to form a complete message and sends it to the vehicle 1. After the vehicle 1 receives the continue parking signal, the controller of the vehicle's automatic parking function makes the vehicle have a corresponding parking response according to the received signal. The accuracy of the vehicle's automatic parking signal is detected through interaction.

[0019] As Figure 2 shown, the CAN signal processing module 8 uses the TCAN1044V-Q1 as the main control chip. The VIO and VCC of the chip are connected to the power supply. The TXD and RXD are used for the transmission and reception of CAN signals. The CANH and CANL are used for the transmission of CAN signals, and the GND is grounded.

[0020] As Figure 4 shown, the CAN signal processing module 8 is connected to the vehicle's ADAS CAN bus and INFO CAN bus through two-way CAN bus interfaces respectively. First, it parses the obtained CAN signals and parses the CAN signals into different signal streams according to the corresponding DBC database file. All the signal streams converge in a signal pool, including intelligent driving ADAS, autonomous driving ACC, ICA, and forward collision assistance signal streams. The signals required for different interfaces are taken from the signal pool. The intelligent driving assistance page needs to take the intelligent driving signal stream from the signal pool. In the intelligent driving assistance page, by clicking the screen button to turn off the ACC function, the signal sending module 10 sends the ACC off signal to the CAN signal processing module 8. The CAN signal processing module 8 fills the signal into the corresponding position according to the position defined by each signal in the DBC file to form a complete message and sends it to the vehicle 1 through the bus interface. After the vehicle 1 receives the ACC off signal, the controller of the vehicle to turn off the ACC function makes the vehicle have a response to turn off the ACC function according to the received signal, realizes the interaction with the vehicle bus signal, and detects the accuracy of the autonomous driving assistance signal.

[0021] As Figure 5 shown, in the specific embodiment of the present invention, according to the obtained multi-channel bus signals, the signal differences are analyzed. When the signal detection device of the specific embodiment of the present invention is connected to the ADAS CAN bus and the INFO CAN bus of the vehicle, when the CAN signal sent by the ADAS CAN bus reaches the INFO CAN bus through the gateway, the signal detection device of the specific embodiment of the present invention obtains the signal sent by the ADAS CAN bus and the signal received by the INFO CAN bus. The processing chip 7 compares the signal actually sent by the ADAS CAN bus with the signal that it should send as specified, so as to determine whether there is an error in the signal sent by the ADAS CAN bus; at the same time, it compares the signal received by the INFO CAN bus with the signal actually sent by the ADAS CAN bus, so as to determine whether there is an error during the transmission through the gateway.

[0022] The processing chip 7 of the main board 4 is an RK3588 chip, which uses an octa-core 64-bit big-little core architecture. The USB3.0 / DP1.4 / MULTI0 pin of the RK3588 chip is correspondingly connected to the Type-C interface of the main board 4; the USB3.0 / DP1.4 / MULTI1 and USB3.0 / DP1.4 / MULTI2 pins of the RK3588 chip are correspondingly connected to two USB3.0 interfaces of the main board 4; the PCIE2.0 / SARA30 / MULTI0 pin of the RK3588 chip is correspondingly connected to the RJ45 network cable interface of the main board 4; the PCIE2.0 / SARA30 / MULTI1 and PCIE2.0 / SARA30 / MULTI2 pins of the RK3588 chip are correspondingly connected to two CAN bus interfaces of the main board 4.

[0023] When the vehicle HMI large screen is not developed yet, or when the HMI large screen cannot be matched due to the upgrade of the in-vehicle system / domain controller, the display module 9 replaces the HMI large screen.

[0024] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A signal detection device with decoupled intelligent driving domain, comprising a main board and an external interface module, characterized in that: The main board includes an Ethernet signal processing module, a CAN signal processing module, a processing chip, a signal sending module, and a display module. The Ethernet signal processing module and the CAN signal processing module are respectively connected to the processing chip. The signal sending module is respectively connected to the Ethernet signal processing module and the CAN signal processing module. The display module is respectively connected to the Ethernet signal processing module and the CAN signal processing module. Among them: The Ethernet signal processing module: is connected to the intelligent driving control module of the vehicle through an Ethernet converter, decouples the Ethernet signal obtained from the vehicle end, segments the Ethernet signal according to the Ethernet identification matrix table, and imports each segment into the Ethernet signal stream; The CAN signal processing module: is connected to the CAN bus of the vehicle, parses the CAN signal obtained from the vehicle end according to the DBC database file, and parses the CAN signal into different signal streams. All the signal streams converge in a signal pool; The processing chip: compares each Ethernet signal and performs segmented operations; The Ethernet signal processing module and the CAN signal processing module respectively send the Ethernet signal and the bus signal to the vehicle end through their respective interfaces. After the vehicle receives the corresponding signals, it issues corresponding action responses to detect the accuracy of the intelligent driving domain signals through interaction.

2. The signal detection device for intelligent driving domain decoupling according to claim 1, wherein: The CAN signal processing module obtains the signal sent by the first bus and the signal received by the second bus, parses them according to the DBC database file, and obtains the two bus signals. The processing chip compares the signal actually sent by the first bus with the signal that it should send, so as to determine whether there is an error in the signal sent by the first bus. At the same time, it compares the signal received by the second bus with the signal actually sent by the second bus to determine whether there is an error during the transmission through the gateway.

3. The signal detection device for decoupling the intelligent driving domain according to claim 2, characterized in that: The processing chip determines whether the signal value is consistent with the definition in the DBC database file to determine whether the signal is in error.

4. The signal detection device for decoupling of intelligent driving domain according to claim 1, characterized in that: The Ethernet processing module fills the signals into the corresponding positions according to the positions defined by each signal in the Ethernet matrix table, combines them into a complete message, and sends it to the vehicle end through the Ethernet port.

5. The signal detection device with decoupled intelligent driving domain according to claim 1, characterized in that: The CAN signal pool includes intelligent driving ADAS, autonomous driving ACC, ICA, and forward collision assistance signal streams, and obtains the signals required for different interfaces from the signal pool.

6. The signal detection device with decoupled intelligent driving domain according to claim 1, characterized in that: The CAN signal processing module fills the signals into the corresponding positions according to the positions defined by each signal in the DBC file, combines them into a complete message, and sends it to the vehicle end through the bus interface.

7. The signal detection device with decoupled intelligent driving domain according to claim 1, characterized in that: The Ethernet signal processing module displays the content of the Ethernet signal stream through the display module in a graphical interface.

8. The signal detection device for decoupling of the intelligent driving domain according to claim 1, wherein: The CAN signal processing module displays the content of the signals in the signal pool through the display module in a graphical interface.

9. The signal detection device for intelligent driving domain decoupling according to claim 1, characterized in that: The Ethernet converter converts the in-vehicle Ethernet signal into a standard Ethernet signal.

10. The signal detection device for intelligent driving domain decoupling according to claim 1, wherein: The external interface module includes an Ethernet interface and at least one CAN bus interface.

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