CN115129021B - Method and device for testing vehicle-mounted Ethernet - Google Patents
Method and device for testing vehicle-mounted Ethernet Download PDFInfo
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- CN115129021B CN115129021B CN202110330371.6A CN202110330371A CN115129021B CN 115129021 B CN115129021 B CN 115129021B CN 202110330371 A CN202110330371 A CN 202110330371A CN 115129021 B CN115129021 B CN 115129021B
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- 230000002159 abnormal effect Effects 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 24
- 238000013479 data entry Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 3
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- 238000004088 simulation Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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Abstract
The invention provides a method and a device for testing a vehicle-mounted Ethernet, comprising the following steps of S1, determining an Ethernet mode of a vehicle-mounted tested piece ECU; step S2, determining the integrity of the Ethernet cable by acquiring the cable state; step S3, the industrial Ethernet interface is switched through the vehicle-mounted Ethernet interface, and the computer terminal is communicated with the vehicle-mounted tested piece ECU; s4, determining the functional state of an Ethernet protocol stack of the vehicle-mounted tested piece ECU; s5, setting a plurality of vehicle-mounted Ethernet gateway interfaces into a loop through a virtual local area network, and determining interface states of all vehicle-mounted Ethernet gateways through detecting data receiving conditions; s6, determining the DoIP function state of the vehicle-mounted tested piece ECU; step S7, determining whether the vehicle has the on-board Ethernet basic function. The invention has the advantages of effective control cost and low cost, and can be put into test application in batches; the workload of the testers is reduced, the testing steps are simplified, and the knowledge requirements of the testers are reduced.
Description
Technical Field
The present invention relates to the field of ethernet technologies, and in particular, to a method and an apparatus for testing a vehicle-mounted ethernet.
Background
The device for testing the vehicle-mounted Ethernet function can be used for a development stage, a DV test stage and an after-sale fault checking stage of an ECU. As an auxiliary testing device, a feedback value can be provided for the function of the vehicle-mounted Ethernet, and a means for judging the function of the vehicle-mounted Ethernet can be provided.
And (5) the function of the vehicle-mounted Ethernet and troubleshooting. In the prior art, an Ethernet testing tool with relatively strong professionals, such as CANOE, is used, and the testing equipment is high in price, large in size, low in portability and high in complexity, and needs experience accumulation of Ethernet knowledge of operators.
As described above, the existing test equipment has many limitations, including high price, large volume, low portability, and high complexity, and requires experience accumulation of ethernet knowledge for operators.
Disclosure of Invention
The invention aims to provide a method and a device for testing a vehicle-mounted Ethernet, which solve the technical problems of high cost and high complexity of the existing method and the requirement that operators have experience accumulation of Ethernet knowledge.
In one aspect, a method for testing a vehicle-mounted ethernet network is provided, comprising the steps of:
step S1, determining an Ethernet mode of the vehicle-mounted tested piece ECU according to the Ethernet mode of the tested vehicle-mounted ECU and the connection state of the tested vehicle-mounted piece ECU;
step S2, determining the integrity of the Ethernet cable by acquiring the cable state;
step S3, the industrial Ethernet interface is switched through the vehicle-mounted Ethernet interface, and the computer terminal is communicated with the vehicle-mounted tested piece ECU;
step S4, sending a ping message to the vehicle-mounted tested piece ECU, and determining the functional state of an Ethernet protocol stack of the vehicle-mounted tested piece ECU;
s5, setting a plurality of vehicle-mounted Ethernet gateway interfaces into a loop through a virtual local area network, and determining interface states of all vehicle-mounted Ethernet gateways through detecting data receiving conditions;
step S6, a DoIP request message is sent to the vehicle-mounted tested piece ECU, and the DoIP function state of the vehicle-mounted tested piece ECU is determined;
and S7, determining whether the vehicle has the vehicle-mounted Ethernet basic function according to the received Ethernet cable state, ethernet protocol stack functional state, interface state of the vehicle-mounted Ethernet gateway and DoIP functional state of the vehicle-mounted tested ECU.
Preferably, in step S1, the determining the ethernet mode of the vehicle-mounted measured object ECU specifically includes:
setting an Ethernet mode of a test vehicle-mounted ECU as a main equipment mode;
detecting and testing whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU, if so, judging that the Ethernet mode of the vehicle-mounted tested piece ECU is a slave device mode; if the test vehicle-mounted ECU is not connected, setting an Ethernet mode of the test vehicle-mounted ECU as a slave device mode;
detecting whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU or not again; if the vehicle-mounted tested piece ECU is connected, judging that an Ethernet mode of the vehicle-mounted tested piece ECU is a main equipment mode; if the vehicle-mounted tested piece ECU is not connected, judging that the vehicle-mounted tested piece ECU does not work normally; and outputs the test result.
Preferably, in step S2, the determining an ethernet cable state specifically includes:
acquiring the connection state of an Ethernet cable; if the connection state of the Ethernet cable is connection, judging that the Ethernet cable is complete; if the Ethernet cable connection state is unconnected, the Ethernet cable is determined to be disconnected.
Preferably, in step S4, the determining the ethernet protocol stack function status of the vehicle-mounted tested piece ECU specifically includes:
sending a message to the vehicle-mounted tested piece ECU, and if the vehicle-mounted tested piece ECU returns a data packet, judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is normal in function; and if the vehicle-mounted tested piece ECU does not return the data packet, judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is abnormal in function.
Preferably, in step S5, the determining interface states of all the on-vehicle ethernet gateways specifically includes:
setting adjacent vehicle-mounted Ethernet gateway interfaces as a group of communicated virtual local area networks, and forming a loop by all the vehicle-mounted Ethernet gateway interfaces through a plurality of groups of adjacent virtual local area networks;
transmitting the detection data from the data inlet of the loop, and receiving the detection data from the data outlet of the loop;
if the data outlet successfully receives the detection data, judging that all the vehicle-mounted Ethernet interfaces are in a normal working state; if the data outlet does not successfully receive the detection data, judging that at least one vehicle-mounted Ethernet interface is in an abnormal working state.
Preferably, in step S6, the determining the DoIP function status of the vehicle-mounted measured-piece ECU specifically includes:
sending a request message to the vehicle-mounted tested piece ECU, and judging that the DoIP function of the vehicle-mounted tested piece ECU is normal if the vehicle-mounted tested piece ECU replies; and if the vehicle-mounted tested piece ECU does not recover, judging that the DoIP function of the vehicle-mounted tested piece ECU is abnormal.
Preferably, in step S7, whether the real vehicle has an on-board ethernet basic function specifically includes:
if the Ethernet cable state of the vehicle-mounted tested piece ECU is complete, and the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested piece ECU are all normal, judging that the vehicle-mounted Ethernet basic function is provided;
if the Ethernet cable state of the vehicle-mounted tested piece ECU is disconnected or any one of the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested piece ECU is abnormal, judging that the vehicle-mounted Ethernet basic function is not provided.
In another aspect, a device for testing a vehicle-mounted ethernet is provided, so as to implement the method for testing a vehicle-mounted ethernet, including: a microcontroller module and a routing module connected to each other;
the microcontroller module is used for determining the Ethernet mode of the vehicle-mounted tested piece ECU according to the Ethernet mode of the tested vehicle-mounted ECU and the connection state of the tested vehicle-mounted piece ECU; the interface states of all the vehicle-mounted Ethernet gateways are determined by detecting the receiving condition of the data; the method comprises the steps of determining the functional state of an Ethernet protocol stack of a vehicle-mounted tested piece ECU, and sending a message to the vehicle-mounted tested piece ECU; sending a request message to the vehicle-mounted tested piece ECU, and determining the DoIP function state of the vehicle-mounted tested piece ECU;
the routing module is used for determining the integrity of the Ethernet cable by acquiring the cable state; the computer terminal is communicated with the vehicle-mounted tested piece ECU through the vehicle-mounted Ethernet interface switching industrial Ethernet interface;
the routing module is also used for setting a plurality of vehicle-mounted Ethernet gateway interfaces into a loop through a virtual local area network;
the microcontroller module is also used for determining whether the vehicle has the vehicle-mounted Ethernet basic function according to the received Ethernet cable state, ethernet protocol stack functional state, interface state of the vehicle-mounted Ethernet gateway and DoIP functional state of the vehicle-mounted tested ECU.
Preferably, the microcontroller module is further configured to set an ethernet mode of the test vehicle-mounted ECU as a main device mode;
detecting and testing whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU, if so, judging that the Ethernet mode of the vehicle-mounted tested piece ECU is a slave device mode; if the test vehicle-mounted ECU is not connected, setting an Ethernet mode of the test vehicle-mounted ECU as a slave device mode;
detecting whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU or not again; if the vehicle-mounted tested piece ECU is connected, judging that an Ethernet mode of the vehicle-mounted tested piece ECU is a main equipment mode; if the vehicle-mounted tested piece ECU is not connected, judging that the vehicle-mounted tested piece ECU does not work normally; and outputting a test result;
the system is also used for sending a message to the vehicle-mounted tested piece ECU, and judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is normal in function if the vehicle-mounted tested piece ECU returns a data packet; if the vehicle-mounted tested piece ECU does not return the data packet, judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is abnormal in function;
the system is also used for acquiring whether the data outlet successfully receives the detection data or not, and if the data outlet successfully receives the detection data, judging that all the vehicle-mounted Ethernet interfaces are in a normal working state; if the data outlet does not successfully receive the detection data, judging that at least one vehicle-mounted Ethernet interface is in an abnormal working state;
the vehicle-mounted tested piece ECU is also used for sending a request message to the vehicle-mounted tested piece ECU, and if the vehicle-mounted tested piece ECU replies, the DoIP function of the vehicle-mounted tested piece ECU is judged to be normal; if the vehicle-mounted tested piece ECU does not respond, judging that the DoIP function of the vehicle-mounted tested piece ECU is abnormal;
the method comprises the steps that an Ethernet cable state, an Ethernet protocol stack functional state, an interface state of a vehicle-mounted Ethernet gateway and a DoIP functional state of the vehicle-mounted tested ECU are received, and if the Ethernet cable state of the vehicle-mounted tested ECU is complete and the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested ECU are all normal, the vehicle-mounted Ethernet basic function is judged to be provided;
if the Ethernet cable state of the vehicle-mounted tested piece ECU is disconnected or any one of the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested piece ECU is abnormal, judging that the vehicle-mounted Ethernet basic function is not provided.
Preferably, the routing module is further configured to obtain an ethernet cable connection state; if the connection state of the Ethernet cable is connection, judging that the Ethernet cable is complete; if the connection state of the Ethernet cable is unconnected, judging that the Ethernet cable is disconnected;
the system comprises a vehicle-mounted Ethernet gateway interface, a plurality of groups of vehicle-mounted Ethernet gateway interfaces, a plurality of virtual local area networks and a plurality of network-mounted Ethernet gateway interfaces, wherein the vehicle-mounted Ethernet gateway interfaces are arranged as a group of communicated virtual local area networks;
the detection data is sent from the data entry of the loop and received by the data exit of the loop.
In summary, the embodiment of the invention has the following beneficial effects:
according to the method and the device for testing the vehicle-mounted Ethernet, disclosed by the invention, the test can be realized through software on the basis of original hardware without adding additional hardware equipment, the cost is effectively controlled, the cost is low, and the method and the device can be put into test application in batches. The intelligent autonomous testing process is adopted, so that the workload of a tester is reduced, the testing steps are simplified, the knowledge requirement of the tester is reduced, and the operation is simple. Quick positioning in development, elimination of Ethernet mode setting problem (master/slave mode), VLAN setting problem (setting port sends data packet with VLAN information), TCPIP protocol stack problem (ping echo request message). The method can be used for verifying the development of the diagnosis function of the vehicle-mounted electronic control unit by simulating the function of the DoIP Client.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that it is within the scope of the invention to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
Fig. 1 is a schematic flow chart of a method for testing a vehicle-mounted ethernet in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a method and an apparatus for testing a vehicle-mounted ethernet in an embodiment of the present invention.
Fig. 3 is a logic schematic diagram of determining an ethernet mode of a vehicle-mounted ECU according to an embodiment of the present invention.
Fig. 4 is a logic diagram of determining an ethernet cable status in an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of an on-board ethernet interface switching industrial ethernet interface according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a plurality of vehicle ethernet gateway interfaces configured as a loop through a virtual local area network according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
Fig. 1 is a schematic diagram of an embodiment of a method for testing a vehicle ethernet network according to the present invention. In this embodiment, the method comprises the steps of:
step S1, determining an Ethernet mode of the vehicle-mounted tested piece ECU according to the Ethernet mode of the tested vehicle-mounted ECU and the connection state of the tested vehicle-mounted piece ECU; it is understood that the ethernet mode of the ECU-carried test piece is mainly a master-slave device mode (master-slave).
In a specific embodiment, as shown in fig. 3, when the mode state starts to be detected, firstly, an ethernet mode of a test vehicle ECU (local) is set as a master mode; detecting whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU or not, and if so, judging that the Ethernet mode of the vehicle-mounted tested piece ECU is a slave mode (slave mode); if not, setting the Ethernet mode of the test vehicle-mounted ECU as a slave mode (slave mode); then, detecting whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU or not again; if the vehicle-mounted tested piece ECU is connected, judging that the Ethernet mode of the vehicle-mounted tested piece ECU is a master mode; if the vehicle-mounted tested piece ECU is not connected, judging that the vehicle-mounted tested piece ECU does not work normally; and outputs the test results to a display device, such as a liquid crystal display.
Step S2, determining the integrity of the Ethernet cable by acquiring the cable state; it will be appreciated that it may be determined whether the ethernet cable is disconnected or in poor contact by the ethernet cable status. Specifically, the ethernet cable state may be determined by a preset obtaining method, for example, a chip data manual is queried to determine a function and a use method of obtaining the ethernet cable state of the host, and then the ethernet cable state may be directly obtained, where the chip data manual mainly records a basic description about technical features of a product, including basic configuration of the product (such as capacity of a built-in Flash and RAM, number of peripheral devices, etc.), number and allocation of pins, electrical characteristics, package information, order codes, and the like.
In a specific embodiment, as shown in fig. 4, firstly, it is determined that a test vehicle-mounted ECU and a vehicle-mounted tested piece ECU are connected on a hardware basis, and then, an ethernet cable connection state is obtained; if the connection state of the Ethernet cable is connection, judging that the Ethernet cable is complete; if the Ethernet cable connection state is unconnected, the Ethernet cable is determined to be disconnected.
Step S3, as shown in FIG. 5, the industrial Ethernet interface is switched through the vehicle-mounted Ethernet interface, specifically, one end of the local machine is connected with the vehicle-mounted tested piece ECU through the vehicle-mounted Ethernet interface, and the other end of the local machine is connected with a personal computer (computer terminal) through the industrial Ethernet interface, so that the computer terminal is communicated with the vehicle-mounted tested piece ECU; it will be appreciated that the personal computer may be connected to the vehicle ECU under certain specific requirements.
Step S4, a message is sent to the vehicle-mounted tested piece ECU, and the Ethernet protocol stack functional state of the vehicle-mounted tested piece ECU is determined; it can be understood that when performing DV test, it is necessary to implement sending a ping message in a high-temperature laboratory to check whether the ethernet protocol stack of the tested piece functions normally; however, since a common personal computer cannot enter a high-temperature laboratory to send messages, the personal computer can replace the personal computer to enter the high-temperature laboratory to execute the task of sending ping messages.
In the specific embodiment, a message is sent to the vehicle-mounted tested piece ECU, and if the vehicle-mounted tested piece ECU returns a data packet, the Ethernet protocol stack of the vehicle-mounted tested piece ECU is judged to be normal in function; and if the vehicle-mounted tested piece ECU does not return the data packet, judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is abnormal in function. In the high-temperature laboratory test, other test equipment cannot be separated from a personal computer, and the invention can be separated from the connection of the personal computer to test together with a tested piece.
S5, setting a plurality of vehicle-mounted Ethernet gateway interfaces into a loop through a virtual local area network, and determining interface states of all vehicle-mounted Ethernet gateways through detecting data receiving conditions; it can be understood that, because the vehicle-mounted gateway has a plurality of interfaces, in the test process, a plurality of ECUs need to be connected to reach all interfaces for testing, and the data loop back can be controlled through VLAN (virtual local area network) technology, so that the multi-interface test of the vehicle-mounted Ethernet gateway is completed.
In a specific embodiment, as shown in fig. 6, adjacent vehicle-mounted ethernet gateway interfaces are set as a group of communicated virtual local area networks, all vehicle-mounted ethernet gateway interfaces form a loop through a plurality of groups of adjacent virtual local area networks, specifically, a plurality of VLAN ids are set, two interfaces are set as a group, 6 VLANs are set in total, and other ECU (electronic control unit) tests are pushed in this way; transmitting the detection data from the data inlet of the loop, and receiving the detection data from the data outlet of the loop; if the data outlet successfully receives the detection data, judging that all the vehicle-mounted Ethernet interfaces are in a normal working state; if the data outlet does not successfully receive the detection data, judging that at least one vehicle-mounted Ethernet interface is in an abnormal working state. All interfaces are traversed through VLANID limiting data, so that one testing device can complete testing of a plurality of interfaces, and the existing method is to use a plurality of testing devices for testing.
Step S6, a request message is sent to the vehicle-mounted tested piece ECU, and the DoIP function state of the vehicle-mounted tested piece ECU is determined; it can be understood that the local machine can be used as a DoIP Client to send a DoIP request message through simulation, if the tested piece replies, the DoIP function of the tested piece is considered to work normally, if the tested piece does not reply, the tested piece is considered to have no DoIP function, wherein the DoIP refers to diagnosis of the vehicle-mounted ECU through Ethernet.
In the specific embodiment, a request message is sent to the vehicle-mounted tested piece ECU, and if the vehicle-mounted tested piece ECU replies, the DoIP function of the vehicle-mounted tested piece ECU is judged to be normal; and if the vehicle-mounted tested piece ECU does not recover, judging that the DoIP function of the vehicle-mounted tested piece ECU is abnormal.
And S7, determining whether the vehicle has the vehicle-mounted Ethernet basic function according to the received Ethernet cable state, ethernet protocol stack functional state, interface state of the vehicle-mounted Ethernet gateway and DoIP functional state of the vehicle-mounted tested ECU. It will be appreciated that the on-board ethernet basic functions are integrated and tested on the same device (steps S1-S6 above), specifically including cable connectivity, interface mode, ICMP, TCPIP, doIP functional testing, and the testing is performed sequentially. Only if these tests pass, the tested piece is considered to have the basic function of the vehicle-mounted Ethernet.
In the specific embodiment, if the ethernet cable state of the vehicle-mounted tested piece ECU is complete, and the ethernet protocol stack functional state, the interface state of the vehicle-mounted ethernet gateway, and the DoIP functional state of the vehicle-mounted tested piece ECU are all normal, determining that the vehicle-mounted ethernet basic function is provided;
if the Ethernet cable state of the vehicle-mounted tested piece ECU is disconnected or any one of the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested piece ECU is abnormal, judging that the vehicle-mounted Ethernet basic function is not provided.
Fig. 2 is a schematic diagram of an embodiment of an apparatus for testing a vehicle ethernet according to the present invention. In this embodiment, the apparatus is configured to implement a method for testing an on-board ethernet network, including: a microcontroller module and a routing module connected to each other;
the microcontroller module is used for determining the Ethernet mode of the vehicle-mounted tested piece ECU according to the Ethernet mode of the tested vehicle-mounted ECU and the connection state of the tested vehicle-mounted piece ECU; the interface states of all the vehicle-mounted Ethernet gateways are determined by detecting the receiving condition of the data; the method comprises the steps of determining the functional state of an Ethernet protocol stack of a vehicle-mounted tested piece ECU, and sending a message to the vehicle-mounted tested piece ECU; sending a request message to the vehicle-mounted tested piece ECU, and determining the DoIP function state of the vehicle-mounted tested piece ECU;
the routing module is used for determining the integrity of the Ethernet cable by acquiring the cable state; the computer terminal is communicated with the vehicle-mounted tested piece ECU through the vehicle-mounted Ethernet interface switching industrial Ethernet interface;
the routing module is also used for setting a plurality of vehicle-mounted Ethernet gateway interfaces into a loop through a virtual local area network;
the microcontroller module is also used for determining whether the vehicle has the vehicle-mounted Ethernet basic function according to the received Ethernet cable state, ethernet protocol stack functional state, interface state of the vehicle-mounted Ethernet gateway and DoIP functional state of the vehicle-mounted tested ECU.
In a specific embodiment, the microcontroller module is further configured to set an ethernet mode of the test vehicle-mounted ECU as a main device mode;
detecting and testing whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU, if so, judging that the Ethernet mode of the vehicle-mounted tested piece ECU is a slave device mode; if the test vehicle-mounted ECU is not connected, setting an Ethernet mode of the test vehicle-mounted ECU as a slave device mode;
detecting whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU or not again; if the vehicle-mounted tested piece ECU is connected, judging that an Ethernet mode of the vehicle-mounted tested piece ECU is a main equipment mode; if the vehicle-mounted tested piece ECU is not connected, judging that the vehicle-mounted tested piece ECU does not work normally; and outputting a test result;
the system is also used for sending a message to the vehicle-mounted tested piece ECU, and judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is normal in function if the vehicle-mounted tested piece ECU returns a data packet; if the vehicle-mounted tested piece ECU does not return the data packet, judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is abnormal in function;
the system is also used for acquiring whether the data outlet successfully receives the detection data or not, and if the data outlet successfully receives the detection data, judging that all the vehicle-mounted Ethernet interfaces are in a normal working state; if the data outlet does not successfully receive the detection data, judging that at least one vehicle-mounted Ethernet interface is in an abnormal working state;
the vehicle-mounted tested piece ECU is also used for sending a request message to the vehicle-mounted tested piece ECU, and if the vehicle-mounted tested piece ECU replies, the DoIP function of the vehicle-mounted tested piece ECU is judged to be normal; if the vehicle-mounted tested piece ECU does not respond, judging that the DoIP function of the vehicle-mounted tested piece ECU is abnormal;
the method comprises the steps that an Ethernet cable state, an Ethernet protocol stack functional state, an interface state of a vehicle-mounted Ethernet gateway and a DoIP functional state of the vehicle-mounted tested ECU are received, and if the Ethernet cable state of the vehicle-mounted tested ECU is complete and the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested ECU are all normal, the vehicle-mounted Ethernet basic function is judged to be provided;
if the Ethernet cable state of the vehicle-mounted tested piece ECU is disconnected or any one of the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested piece ECU is abnormal, judging that the vehicle-mounted Ethernet basic function is not provided.
The routing module is further specifically configured to obtain an ethernet cable connection state; if the connection state of the Ethernet cable is connection, judging that the Ethernet cable is complete; if the connection state of the Ethernet cable is unconnected, judging that the Ethernet cable is disconnected;
the system comprises a vehicle-mounted Ethernet gateway interface, a plurality of groups of vehicle-mounted Ethernet gateway interfaces, a plurality of virtual local area networks and a plurality of network-mounted Ethernet gateway interfaces, wherein the vehicle-mounted Ethernet gateway interfaces are arranged as a group of communicated virtual local area networks;
the detection data is sent from the data entry of the loop and received by the data exit of the loop.
In summary, the embodiment of the invention has the following beneficial effects:
according to the method and the device for testing the vehicle-mounted Ethernet, disclosed by the invention, the test can be realized through software on the basis of original hardware without adding additional hardware equipment, the cost is effectively controlled, the cost is low, and the method and the device can be put into test application in batches. The intelligent autonomous testing process is adopted, so that the workload of a tester is reduced, the testing steps are simplified, the knowledge requirement of the tester is reduced, and the operation is simple. Quick positioning in development, elimination of Ethernet mode setting problem (master/slave mode), VLAN setting problem (setting port sends data packet with VLAN information), TCPIP protocol stack problem (ping echo request message). The method can be used for verifying the development of the diagnosis function of the vehicle-mounted electronic control unit by simulating the function of the DoIP Client.
The foregoing disclosure is illustrative of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. A method of testing a vehicle-mounted ethernet network, comprising the steps of:
step S1, determining an Ethernet mode of the vehicle-mounted tested piece ECU according to the Ethernet mode of the tested vehicle-mounted ECU and the connection state of the tested vehicle-mounted piece ECU;
step S2, determining the integrity of the Ethernet cable by acquiring the cable state;
step S3, the industrial Ethernet interface is switched through the vehicle-mounted Ethernet interface, and the computer terminal is communicated with the vehicle-mounted tested piece ECU;
step S4, a message is sent to the vehicle-mounted tested piece ECU, and the Ethernet protocol stack functional state of the vehicle-mounted tested piece ECU is determined;
s5, setting a plurality of vehicle-mounted Ethernet gateway interfaces into a loop through a virtual local area network, and determining interface states of all vehicle-mounted Ethernet gateways through detecting data receiving conditions;
step S6, a request message is sent to the vehicle-mounted tested piece ECU, and the DoIP function state of the vehicle-mounted tested piece ECU is determined;
and S7, determining whether the vehicle has the vehicle-mounted Ethernet basic function according to the received integrity of the Ethernet cable of the vehicle-mounted tested piece ECU, the Ethernet protocol stack function state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP function state of the vehicle-mounted tested piece ECU.
2. The method according to claim 1, wherein in step S1, the determining the ethernet mode of the vehicle-mounted ECU specifically includes:
setting an Ethernet mode of a test vehicle-mounted ECU as a main equipment mode;
detecting and testing whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU, if so, judging that the Ethernet mode of the vehicle-mounted tested piece ECU is a slave device mode; if the test vehicle-mounted ECU is not connected, setting an Ethernet mode of the test vehicle-mounted ECU as a slave device mode;
detecting whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU or not again; if the vehicle-mounted tested piece ECU is connected, judging that an Ethernet mode of the vehicle-mounted tested piece ECU is a main equipment mode; if the vehicle-mounted tested piece ECU is not connected, judging that the vehicle-mounted tested piece ECU does not work normally; and outputs the test result.
3. The method according to claim 2, wherein in step S2, the determining the ethernet cable state specifically includes:
acquiring the connection state of an Ethernet cable; if the connection state of the Ethernet cable is connection, judging that the Ethernet cable is complete; if the Ethernet cable connection state is unconnected, the Ethernet cable is determined to be disconnected.
4. The method of claim 3, wherein in step S4, the determining the ethernet protocol stack function status of the vehicle-mounted measurand ECU specifically includes:
sending a message to the vehicle-mounted tested piece ECU, and if the vehicle-mounted tested piece ECU returns a data packet, judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is normal in function; and if the vehicle-mounted tested piece ECU does not return the data packet, judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is abnormal in function.
5. The method according to claim 4, wherein in step S5, the determining interface states of all the on-board ethernet gateways specifically includes:
setting adjacent vehicle-mounted Ethernet gateway interfaces as a group of communicated virtual local area networks, and forming a loop by all the vehicle-mounted Ethernet gateway interfaces through a plurality of groups of adjacent virtual local area networks;
transmitting the detection data from the data inlet of the loop, and receiving the detection data from the data outlet of the loop;
if the data outlet successfully receives the detection data, judging that all the vehicle-mounted Ethernet interfaces are in a normal working state; if the data outlet does not successfully receive the detection data, judging that at least one vehicle-mounted Ethernet interface is in an abnormal working state.
6. The method according to claim 4, wherein in step S6, the determining the DoIP function status of the vehicle-mounted ECU specifically includes:
sending a request message to the vehicle-mounted tested piece ECU, and judging that the DoIP function of the vehicle-mounted tested piece ECU is normal if the vehicle-mounted tested piece ECU replies; and if the vehicle-mounted tested piece ECU does not recover, judging that the DoIP function of the vehicle-mounted tested piece ECU is abnormal.
7. The method according to claim 6, wherein in step S7, the determining whether the vehicle has an on-board ethernet basic function specifically includes:
if the Ethernet cable state of the vehicle-mounted tested piece ECU is complete, and the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested piece ECU are all normal, judging that the vehicle-mounted Ethernet basic function is provided;
if the Ethernet cable state of the vehicle-mounted tested piece ECU is disconnected or any one of the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested piece ECU is abnormal, judging that the vehicle-mounted Ethernet basic function is not provided.
8. An apparatus for testing an ethernet network on board a vehicle for implementing the method of any of claims 1-7, comprising: a microcontroller module and a routing module connected to each other;
the microcontroller module is used for determining the Ethernet mode of the vehicle-mounted tested piece ECU according to the Ethernet mode of the device for testing the vehicle-mounted Ethernet and the connection state of the vehicle-mounted tested piece ECU; the interface states of all the vehicle-mounted Ethernet gateways are determined by detecting the receiving condition of the data; the method comprises the steps of determining the functional state of an Ethernet protocol stack of a vehicle-mounted tested piece ECU, and sending a message to the vehicle-mounted tested piece ECU; sending a request message to the vehicle-mounted tested piece ECU, and determining the DoIP function state of the vehicle-mounted tested piece ECU;
the routing module is used for determining the integrity of the Ethernet cable by acquiring the cable state; the computer terminal is communicated with the vehicle-mounted tested piece ECU through the vehicle-mounted Ethernet interface switching industrial Ethernet interface;
the routing module is also used for setting a plurality of vehicle-mounted Ethernet gateway interfaces into a loop through a virtual local area network;
the microcontroller module is also used for determining whether the vehicle has the vehicle-mounted Ethernet basic function according to the received Ethernet cable state, ethernet protocol stack functional state, interface state of the vehicle-mounted Ethernet gateway and DoIP functional state of the vehicle-mounted tested ECU.
9. The apparatus of claim 8, wherein the microcontroller module is further configured to set an ethernet mode of the test vehicle ECU to a master mode;
detecting and testing whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU, if so, judging that the Ethernet mode of the vehicle-mounted tested piece ECU is a slave device mode; if the test vehicle-mounted ECU is not connected, setting an Ethernet mode of the test vehicle-mounted ECU as a slave device mode;
detecting whether the vehicle-mounted ECU is connected with the vehicle-mounted tested piece ECU or not again; if the vehicle-mounted tested piece ECU is connected, judging that an Ethernet mode of the vehicle-mounted tested piece ECU is a main equipment mode; if the vehicle-mounted tested piece ECU is not connected, judging that the vehicle-mounted tested piece ECU does not work normally; and outputting a test result;
the system is also used for sending a message to the vehicle-mounted tested piece ECU, and judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is normal in function if the vehicle-mounted tested piece ECU returns a data packet; if the vehicle-mounted tested piece ECU does not return the data packet, judging that the Ethernet protocol stack of the vehicle-mounted tested piece ECU is abnormal in function;
the system is also used for acquiring whether the data outlet successfully receives the detection data or not, and if the data outlet successfully receives the detection data, judging that all the vehicle-mounted Ethernet interfaces are in a normal working state; if the data outlet does not successfully receive the detection data, judging that at least one vehicle-mounted Ethernet interface is in an abnormal working state;
the vehicle-mounted tested piece ECU is also used for sending a request message to the vehicle-mounted tested piece ECU, and if the vehicle-mounted tested piece ECU replies, the DoIP function of the vehicle-mounted tested piece ECU is judged to be normal; if the vehicle-mounted tested piece ECU does not respond, judging that the DoIP function of the vehicle-mounted tested piece ECU is abnormal;
the method comprises the steps that an Ethernet cable state, an Ethernet protocol stack functional state, an interface state of a vehicle-mounted Ethernet gateway and a DoIP functional state of the vehicle-mounted tested ECU are received, and if the Ethernet cable state of the vehicle-mounted tested ECU is complete and the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested ECU are all normal, the vehicle-mounted Ethernet basic function is judged to be provided;
if the Ethernet cable state of the vehicle-mounted tested piece ECU is disconnected or any one of the Ethernet protocol stack functional state, the interface state of the vehicle-mounted Ethernet gateway and the DoIP functional state of the vehicle-mounted tested piece ECU is abnormal, judging that the vehicle-mounted Ethernet basic function is not provided.
10. The apparatus of claim 9, wherein the routing module is further configured to obtain an ethernet cable connection status; if the connection state of the Ethernet cable is connection, judging that the Ethernet cable is complete; if the connection state of the Ethernet cable is unconnected, judging that the Ethernet cable is disconnected;
the system comprises a vehicle-mounted Ethernet gateway interface, a plurality of groups of vehicle-mounted Ethernet gateway interfaces, a plurality of virtual local area networks and a plurality of network-mounted Ethernet gateway interfaces, wherein the vehicle-mounted Ethernet gateway interfaces are arranged as a group of communicated virtual local area networks;
the detection data is sent from the data entry of the loop and received by the data exit of the loop.
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