CN221151386U - Automobile Ethernet message acquisition device - Google Patents
Automobile Ethernet message acquisition device Download PDFInfo
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- CN221151386U CN221151386U CN202322767786.7U CN202322767786U CN221151386U CN 221151386 U CN221151386 U CN 221151386U CN 202322767786 U CN202322767786 U CN 202322767786U CN 221151386 U CN221151386 U CN 221151386U
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- 238000012360 testing method Methods 0.000 claims abstract description 44
- 238000003745 diagnosis Methods 0.000 claims description 13
- 239000013078 crystal Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000013480 data collection Methods 0.000 description 1
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Abstract
The utility model discloses an automobile Ethernet message acquisition device, and belongs to the technical field of automobile communication. The device comprises an OBD interface, an upper computer, a bus testing tool CANOE, a switch and at least one Ethernet controller, wherein the OBD interface is connected with the upper computer through the bus testing tool CANOE, and the switch is connected with the OBD interface; the Ethernet controller is connected with the switch. The utility model realizes real-time acquisition and check of the Ethernet message of the automobile, matches with the actual test operation and obviously improves the test efficiency of the whole automobile.
Description
Technical Field
The utility model belongs to the technical field of automobile communication, and particularly relates to an automobile Ethernet message acquisition device.
Background
As shown in fig. 1, taking a cabin domain controller as an example, a conventional automotive ethernet message collecting device includes a cabin domain controller with an ADB port (AndroidDebugBridge, translated into an android debug bridge), a USB port, a dual-bus, a notebook computer, and a bus test tool CANOE, where the ADB port of the cabin domain controller is connected to the USB port through a whole vehicle harness, the USB port is connected to the notebook computer through the dual-bus, and the bus test tool CANOE is connected to the notebook computer.
The ethernet message collection mode of the above device is that the notebook computer sends an ADB command, the command is transmitted to the ADB port of the cabin domain controller through the USB port, and is used for printing LOGs (LOG), obtaining ethernet messages, and the notebook computer receives and stores the ethernet messages, and then analyzes the ethernet messages through the bus test tool CANOE. It can be seen that this method has the following disadvantages: the real-time performance is not high, the bus test tool CANOE cannot be directly connected to the whole vehicle, the whole vehicle function is actually operated, the Ethernet message signal value is checked in real time, and the test efficiency is low.
The comparison document (CN 116755423A) discloses a vehicle-mounted Ethernet data acquisition system, an acquisition method and a vehicle, relates to the technical field of vehicle-mounted communication, and in particular relates to a vehicle-mounted Ethernet data acquisition system, a vehicle-mounted Ethernet data acquisition method and a vehicle. According to one aspect of the present application, there is provided a vehicle-mounted ethernet data acquisition system comprising: a real-time data acquisition module for running a first operating system and configured to invoke an ethernet interface to acquire ethernet data in response to a vehicle launch; the data caching module is configured to cache the Ethernet data acquired by the real-time data acquisition module; and a data processing module for running a second operating system and configured to send data transfer instructions to the data caching module to receive cached ethernet data from the data caching module in response to the second operating system booting.
According to the method, the vehicle-mounted Ethernet data is collected through the operating system, and the problem that the real-time performance of the collection is not high due to the fact that the operating system is started slowly is solved, but the real-time performance of the Ethernet data collection is reduced due to the fact that the data caching module is still needed to cache the Ethernet data.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides an automobile Ethernet message acquisition device, so as to achieve the purposes of improving the real-time performance of Ethernet message acquisition, enabling a bus test tool CANOE to be directly connected with a whole automobile, checking the Ethernet message signal value in real time and improving the test efficiency of the whole automobile.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an automotive Ethernet message acquisition device comprises an OBD (translated into an on-board automatic diagnosis system) interface, an upper computer, a bus test tool CANOE, a switch and at least one Ethernet controller, wherein the OBD interface is connected with the upper computer through the bus test tool CANOE, and the switch is connected with the OBD interface; the Ethernet controller is connected with the switch.
Further, the switch is used for copying and transmitting the Ethernet message mirror image between the switch and the Ethernet controller to the link between the switch and the OBD interface.
Further, the OBD interface is configured to forward the ethernet packet on the link between the switch and the OBD interface to the bus testing tool CANOE.
Further, the bus testing tool CANOE is configured to analyze the ethernet packet forwarded by the OBD interface.
Further, the upper computer is used for sending out a diagnosis command to control the switch to collect the Ethernet message.
Further, a wiring of an OBD plug-to-crystal head is adopted between the OBD interface and the bus testing tool CANOE, the OBD plug end of the wiring is connected with the OBD interface, and the crystal head end of the wiring is connected with the bus testing tool CANOE.
The utility model has the technical effects that: the real-time performance of the Ethernet message collection is improved; (2) The Ethernet message monitoring equipment is connected to the OBD diagnosis port of the whole vehicle, and the Ethernet message can be directly checked in real time in the whole vehicle test and matched with the actual test operation, so that the test efficiency is greatly improved.
Drawings
FIG. 1 is a diagram of a conventional Ethernet message acquisition device for a cabin domain controller;
Fig. 2 is a diagram of an acquisition device according to the present utility model.
In the figure, a is denoted as a switch, and B, C, D is denoted as an ethernet controller.
Detailed Description
The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid those skilled in the art in a more complete, accurate and thorough understanding of the inventive concepts and aspects of the utility model, and to facilitate their practice.
An automotive Ethernet message acquisition device comprises an OBD interface, an upper computer, a bus testing tool CANOE, a switch and at least one Ethernet controller, wherein the OBD interface is connected with the upper computer through the bus testing tool CANOE, and the switch is connected with the OBD interface; the Ethernet controller is connected with the switch.
Further, the switch is used for copying and transmitting the Ethernet message mirror image between the switch and the Ethernet controller to the link between the switch and the OBD interface.
Further, the OBD interface is configured to forward the ethernet packet on the link between the switch and the OBD interface to the bus testing tool CANOE.
Further, the bus testing tool CANOE is configured to analyze the ethernet packet forwarded by the OBD interface.
Further, the upper computer is used for sending out a diagnosis command to control the switch to collect the Ethernet message.
Further, a wiring of an OBD plug-to-crystal head is adopted between the OBD interface and the bus testing tool CANOE, the OBD plug end of the wiring is connected with the OBD interface, and the crystal head end of the wiring is connected with the bus testing tool CANOE.
The utility model uses the function of exchanger data exchange to copy (mirror image) the Ethernet link message to be monitored to the OBD diagnosis link by means of diagnosis command. Specifically, as shown in fig. 2, the present embodiment includes at least one ethernet controller (in the present embodiment, 3 ethernet controllers are used, which are respectively ethernet controller B, ethernet controller C, and ethernet controller D), a switch A, OBD interface, an upper computer (a notebook is selected in the present example), and a bus test tool CANOE, where the bus test tool CANOE is connected to the notebook; the OBD interface is connected with the bus testing tool CANOE through a wiring of an OBD plug-to-crystal head, the OBD plug end of the OBD interface is connected with the OBD interface, and the crystal head end of the OBD interface is connected with the bus testing tool CANOE; the port 4 of the switch A is connected with the OBD interface; the Ethernet controller B is connected with the switch A port 1, the Ethernet controller C is connected with the switch A port 2, and the Ethernet controller D is connected with the switch A port 3.
In this embodiment, the ethernet interaction function of the ethernet controller D needs to be tested, and then the ethernet packet of the a-D link needs to be monitored. In specific implementation, the notebook computer sends out a diagnosis command and transmits the diagnosis command to the exchanger A through the OBD interface.
The switch A is designed on the basis of a UDS protocol (UDS is unified diagnosis service) in advance, the switch A has a mirror image copying function, the Ethernet message of the A-D link can be copied (mirrored) to an OBD link connected with an OBD interface of the switch A port 4, the Ethernet message is forwarded to the bus testing tool CANOE by the OBD interface, then the Ethernet message can be directly collected and tested in real time through a notebook computer connected with the bus testing tool CANOE, the real-time property of the Ethernet message collection is improved, and meanwhile, the testing efficiency is improved.
The diagnostic routines for switch a are designed as follows (this design is a common application in the prior art): the diagnostic request instruction is hexadecimal code 31017200XX, 31 of which is routine control service in the UDS protocol; 01 is a sub-service, starting a routine; 7200 is a custom routine identifier; the 16-bit binary code XX may be converted into an 8-bit binary code, where 0 represents invalid, 1 represents valid, the zero bit valid selects the A-B link, the first bit valid selects the A-C link, the second bit valid selects the A-D link, and the other bits Reserved, XX being 04 in this embodiment.
Reply to the diagnostic request instruction is 71017200XX, where 71 is the positive response identifier for the 31 services described above; 01 is a sub-service, starting a routine; 7200 is a custom routine identifier; in XX, 0 represents image failure, 1 represents image success, the zero bit effectively selects the A-B link, the first bit is effective to select the A-C link, the second bit is effective to select the A-D link, and other bits are Reserved, in this embodiment XX is FB.
After the switch A receives a diagnosis request message sent by the notebook computer through the OBD interface, the switch A copies (mirrors) the Ethernet message of the A-D link sent and received through the port 3 of the switch A onto the OBD link between the port 4 of the switch A and the OBD interface, meanwhile, if the switch A mirrors successfully, the diagnosis request message is replied, the Ethernet message of the A-D link is forwarded to the bus testing tool CANOE through the OBD interface, and the notebook computer can directly collect and test and analyze through the bus testing tool CANOE. The utility model can acquire and check the Ethernet message in real time while performing OBD diagnosis, and perform test analysis, thus embodying the instantaneity of the utility model and greatly improving the test efficiency.
The utility model is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.
Claims (6)
1. The utility model provides a car ethernet message acquisition device which characterized in that: the device comprises an OBD interface, an upper computer, a bus testing tool CANOE, a switch and at least one Ethernet controller, wherein the OBD interface is connected with the upper computer through the bus testing tool CANOE, and the switch is connected with the OBD interface; the Ethernet controller is connected with the switch.
2. The automotive ethernet message collection device of claim 1, wherein: the switch is used for copying and transmitting the Ethernet message mirror image between the switch and the Ethernet controller to a link between the switch and the OBD interface.
3. The automotive ethernet message collection device of claim 2, wherein: the OBD interface is configured to forward an ethernet packet on a link between the switch and the OBD interface to the bus testing tool CANOE.
4. A car ethernet message collection device according to claim 3, wherein: the bus testing tool CANOE is configured to analyze the ethernet packet forwarded by the OBD interface.
5. An automotive ethernet message collection device according to claim 1 or 4, wherein: the upper computer is used for sending out a diagnosis command to control the switch to collect the Ethernet message.
6. The automotive ethernet message collection device of claim 1, wherein: and an OBD plug is adopted to convert the wiring of the crystal head into the wiring of the OBD plug between the OBD interface and the bus testing tool CANOE, the OBD plug end of the OBD plug is connected with the OBD interface, and the crystal head end of the OBD plug is connected with the bus testing tool CANOE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322767786.7U CN221151386U (en) | 2023-10-16 | 2023-10-16 | Automobile Ethernet message acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322767786.7U CN221151386U (en) | 2023-10-16 | 2023-10-16 | Automobile Ethernet message acquisition device |
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| Publication Number | Publication Date |
|---|---|
| CN221151386U true CN221151386U (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322767786.7U Active CN221151386U (en) | 2023-10-16 | 2023-10-16 | Automobile Ethernet message acquisition device |
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| CN (1) | CN221151386U (en) |
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- 2023-10-16 CN CN202322767786.7U patent/CN221151386U/en active Active
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