CN110138624A - Vehicle-mounted ethernet test equipment, system and test method - Google Patents
Vehicle-mounted ethernet test equipment, system and test method Download PDFInfo
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- CN110138624A CN110138624A CN201910597496.8A CN201910597496A CN110138624A CN 110138624 A CN110138624 A CN 110138624A CN 201910597496 A CN201910597496 A CN 201910597496A CN 110138624 A CN110138624 A CN 110138624A
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- mounted ethernet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/04—Network management architectures or arrangements
- H04L41/044—Network management architectures or arrangements comprising hierarchical management structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
Abstract
The present invention provides a kind of vehicle-mounted ethernet test equipment comprising: microprocessor controller, the PHY module of 100Base-Tx, the PHY module of 100Base-T1, the first kind MAC chip that matches with the PHY module of 100Base-T1, the second class MAC chip, first kind interface, the second class interface, power module to match with the PHY module of 100Base-Tx；Technical solution of the present invention can be applied to the detection of the direct communication between Devices to test, and only need to can complete to test with a vehicle-mounted ethernet device, be on the one hand it is high-efficient, can guarantee test accuracy, on the other hand, it is at low cost；Microprocessor controller is divided into a processor using FPGA and ARM, can flexible Application in various scenes；By using the test equipment of vehicle-mounted Ethernet of the invention, systematic simulation test, the analysis of group packet, test analysis can be carried out to the Devices to test based on vehicle-mounted Ethernet.
Description
Technical field
The present invention relates to the communications fields based on vehicle-mounted Ethernet, and in particular to vehicle-mounted ethernet test equipment, system with
And the equipment transmitted based on vehicle-mounted Ethernet data can be tested test equipment, system and method.
Background technique
With the high speed development of processor operational capability and hardware, so that many innovations are pushed away rapidly under automotive environment
Into, be most significantly embodied in become increasingly complex and multiplicity in-vehicle electronic system, a large amount of sensor and processor are used in vehicle
Not homologous ray realize corresponding function.In continuous evolution process, every increase by one new sensor or application program
It needs to realize by increasing new independent electronic control unit (ECU) equipment and associated sensor circuit, this
Kind way is very inefficient, because needing to increase the ECU quantity of the quantity and installation of connection in the car with point-to-point link
Exponentially rise.In order to overcome this problem, the communication link between relevant ECU is established, allows ECU to use each other more advanced
Function and shared data, this growth has been developing progressively present complicated, isomery In-vehicle networking.Such as it is general at present
Vehicle bus type network: local interconnection network (LIN), controller local area network (CAN) or FlexRay etc..In addition, CAN interface
The overwhelming majority is DB9 interface, be exactly it is more convenient and firm, by DB9 interface, can be surveyed based on the CAN MCU transmitted
Examination.
Relative to point-to-point chain-circuit system, propose that using the network based on bus be a kind of progress, but as the time increases
Add new subsystem that can be added in vehicle, the increase bring of ECU quantity is dramatically increasing for bandwidth consumption.Traditional vehicle
Control application required bandwidth it is generally lower, bandwidth problem does not attract wide public concern.When introducing information entertainment and base
After the advanced driving assistance system (ADAS) of video, these application programs are needed compared to the data transfer bandwidth of traditional control system
Significant growth is asked, the problem of existing In-vehicle networking transmission bandwidth deficiency highlights, therefore the follow-on In-vehicle networking of urgent need
Technology and framework.
In order to solve the quick transmission problem of data, automobile industry alliance OPEN Alliance defines vehicle-mounted Ethernet
Standard BroadR-Reach, which can realize the data of a pair of of Double-strand transmission 100Mb/s, also known as 100BASE-T1.
It is communicated between vehicle-mounted electronic control unit (ElectronicControl Unit, ECU) with BroadR-Reach, with correspondence
Bandwidth for transmission control information and audio, video data.In order to test the ECU based on BroadR-Reach technology, relevant survey is needed
Try software and hardware.Under normal circumstances, test software is installed on computer, however the output of the data of computer usually passes through quick ether
Net mode transmission, and the data of Fast Ethernet transmission 100Mb/s need 2 pairs of twisted pairs, also known as 100BASE-Tx.Thus, out
The mismatch of data transfer mode between existing computer and ECU to be measured, so as to cause that can not be based on by computer testing
The ECU of BroadR-Reach.And this test is carried out in the prior art and is turned by requiring in the enterprising line interface of test development board
Change connection, redefine interface pin parameter etc, whether the communication that in addition device under test is only capable of in this test is normal
Carry out data analysis.Actual conditions be often that while the communication between Devices to test and testing tool be normally show, but to
Whether the communication between measurement equipment normally can not also be tested, such as: ECU and vehicle-mounted camera are by individually test, function
Can be normal, but when concrete application, whether ECU is needed and is communicated between vehicle-mounted camera, normal, need to obtain ECU with
Communication data between vehicle-mounted camera, which carries out analysis, to be assessed, but does not provide such vehicle-mounted ether in the prior art
Net test equipment.Communication means between a kind of two Devices to test of feasible test is set using two vehicle-mounted ethernet tests
It is standby, wherein a vehicle-mounted ethernet test equipment connects ECU, and sensor is attached with another vehicle-mounted ethernet device, so
Two vehicle-mounted ethernet test equipment are attached with computer afterwards.By storing routine call in a computer, ECU will
Signal based on IEEE802.3bp100base-T1 or IEEE802.3bw100base-T1 is transferred to vehicle-mounted Ethernet survey and sets
Standby to carry out parsing and be converted into after the signal for meeting IEEE802.3 100base-Tx be transmitted to computer, computer is by the signal
By sending another vehicle-mounted ethernet test equipment to, convert the signal to meet again in the vehicle-mounted ethernet device
Sensor is being sent to after the signal of IEEE802.3bp100base-T1 or IEEE802.3bw100base-T1.Then pass through prison
Signal depending on transmitting judges whether the communication between ECU and sensor is normal.This haves the shortcomings that larger, on the one hand, needs
It is not two transmission letters of direct communication between ECU and sensor on the other hand using two vehicle-mounted ethernet test equipment
Number, but by the conversion between agreement, when interference is present, on the one hand signal can be made based on the conversion between different agreement
It is lost at information, mistake on the other hand can occur.
In conclusion the communication between Devices to test and testing tool in order to effectively overcome the above-mentioned prior art is normal
It has been shown that, but the phenomenon that whether the communication between Devices to test normally can not also accurately be tested, it is a kind of it is new will based on it is vehicle-mounted with
The invention of test method and test equipment that the equipment of too network data transmission is tested is imperative.
Summary of the invention
The purpose of the present invention is to provide a kind of vehicles that the equipment for carrying out communications using vehicle-mounted Ethernet is tested
It carries ethernet test tool and system, technical solution of the invention is as follows:
A kind of vehicle-mounted ethernet test equipment, includes at least: microprocessor controller, the PHY module of 100Base-Tx, 100Base-
The PHY module of T1, the first kind MAC chip that matches with the PHY module of 100Base-T1, the PHY module phase with 100Base-Tx
Matched second class MAC chip, first kind interface, the second class interface, power module,
The PHY module of 100Base-T1 is electrically connected with first kind MAC chip and first kind interface respectively, first kind MAC chip with
Microprocessor controller electrical connection；
The PHY module of 100Base-Tx is electrically connected with the second class MAC chip and the second class interface respectively, the second class MAC chip with
Microprocessor controller electrical connection；
PHY module, first kind MAC chip and the first kind interface of 100Base-T1 include at least first first kind MAC chip,
Second first kind MAC chip, the PHY module of first 100Base-T1, the PHY module of second 100Base-T1, first
A first kind interface, second first kind interface, the PHY module of first 100Base-T1 respectively with first first kind
MAC chip, the electrical connection of first first kind interface, the PHY module of the 2nd 100Base-T1 respectively with second first kind MAC core
Piece, the electrical connection of second first kind interface, wherein the PHY module of first 100Base-T1 is with second 100Base-T1's
PHY module is directly electrically connected and carries out data transmission or the MAC core of first first kind MAC chip and second first kind
Piece is directly electrically connected and carries out data transmission.
A kind of vehicle-mounted ethernet test equipment, further, first kind MAC chip can be integrated into 100Base-T1's
In PHY module or in microprocessor controller or the PHY module of first kind MAC chip, 100Base-T1 can be integrated into micro- place
It manages in controller；
Or second class MAC chip can be integrated into the PHY module of 100Base-Tx or in microprocessor controller or the second class
MAC chip, 100Base-Tx PHY module can be integrated into microprocessor controller；
Or first kind MAC chip can be integrated in the PHY module of 100Base-T1 or in CPU or first kind MAC chip,
The PHY module of 100Base-T1 can be integrated in CPU；
Or second class MAC chip can all be integrated in the PHY module of 100Base-Tx or in CPU or the second class MAC core
Piece, 100Base-Tx PHY module can be integrated in CPU.
A kind of vehicle-mounted ethernet test equipment includes further FPGA Programmable logical controller in microprocessor controller
Device and controller based on ARM framework, FPGA programmable logic controller (PLC) are electrically connected with the controller of ARM framework.
A kind of vehicle-mounted ethernet test equipment, further, FPGA programmable logic controller (PLC) are written by program and are realized
The PHY module of first kind MAC chip, 100Base-T1, and be electrically connected with the controller of ARM framework.
A kind of vehicle-mounted ethernet test equipment, further, when using FPGA programmable logic controller (PLC) and based on ARM frame
The controller of structure, it is preferred that in first kind MAC integrated chip to FPGA programmable logic controller (PLC), the second class MAC integrated chip
Into the controller of ARM framework.
A kind of vehicle-mounted ethernet test equipment, further, the quantity of first kind interface and the number of 100Base-T1 module
Amount, first kind MAC number of chips are identical；The quantity of second class interface and PHY module, the second class MAC chip of 100Base-Tx
Quantity is identical.
A kind of vehicle-mounted ethernet test equipment, further, first kind interface are 100Base-T1 interface, the second class interface
For RJ-45 interface.
A kind of vehicle-mounted ethernet test equipment, further, the PHY module of 100Base-T1 and the quantity of first kind interface
It further include other 2, respectively the PHY module of third 100Base-T1, PHY module, the third of the 4th 100Base-T1
A first kind interface, the 4th first kind interface, PHY module and the third first kind interface of third 100Base-T1 are electrically connected
It connects, the PHY module of the 4th 100Base-T1 is electrically connected with the 4th first kind interface, wherein the PHY mould of third 100Base-T1
Block cannot be directly electrically connected with the PHY module of the 4th 100Base-T1.
Specifically, the PHY module of first kind interface, 100Base-T1, the PHY module of the second class interface, 100Base-Tx
Quantity, can be for 1,2,4 or more, can be adjusted according to the quantity of test equipment.
A kind of vehicle-mounted ethernet test equipment, further, first first kind interface and second first kind interface are used
In probe patterns, probe patterns are applied to obtain the data transmit between two distinct devices, and the third first kind connects
Mouthful be used for analog functuion, analog functuion be applied to receive external equipment generate analogue data and send it to Devices to test into
Row analysis, first kind interface are used for test function, carry out test analysis applied to the functions of the equipments of access, first kind interface is
100Base-T1 interface.
A kind of vehicle-mounted ethernet test equipment, further, including probe patterns, the analysis of group packet, analog functuion and survey
Trying function includes TCP, UDP, ARP, DHCP, DoIP, UDS, SOMEIP, GPTP, 1722, the analysis and field of UDPNM protocol package
Analysis.
A kind of vehicle-mounted ethernet test equipment further includes further the toggle switch and DB9 with control first kind interface
Interface, wherein toggle switch is used to control the aggressive mode and subordinate mode of first kind interface；
DB9 interface is electrically connected with microprocessor controller, for testing the equipment containing DB9.
A kind of vehicle-mounted ethernet test equipment, further, vehicle-mounted ethernet test equipment further include power indicator,
A kind of interface indicators, the second class interface indicators are respectively used to the work to power supply and first kind interface, the second class interface
State is indicated.
A kind of vehicle-mounted ethernet test equipment further includes further power supply module, external power supply module and printed circuit
Plate, printed circuit board are electrically connected with power supply module and external power supply module respectively, and power supply module is used to carry out to printed circuit board
Power supply, external power supply module are powered external equipment.
A kind of vehicle-mounted ethernet test system, further include: computer, test function module, vehicle-mounted ethernet test are set
It is standby, wherein test function module can be integrated into computer in a manner of software or hardware.
The present invention also provides a kind of method tested using vehicle-mounted ethernet test system device under test, tests
System includes the computer containing test function module, vehicle-mounted ethernet test equipment as characterized above, including probe mould
Formula, probe patterns the following steps are included:
Step 1: two Devices to test for being used for probe patterns being passed through into vehicle-mounted Ethernet data line respectively and are connected to vehicle-mounted ether
PHY module with any two 100base-T1 or any two first kind MAC chip in net test equipment carry out direct
It connects and the two 100base-T1 interfaces that match；
Specifically, further explain, such as: MAC chip respectively with the PHY module of 100base-T1 and the interface of 100base-T1
It is attached, there are two identical modules, wherein the MAC chip in two modules is directly connected to or the PHY mould of 100base-T1
Block is directly connected to, and Devices to test is respectively connected to 100base-T1 interface.
Step 2: the test function module in computer calls application program to enable probe patterns, makes its ECU and sensor
Between start enabling signal interaction；
Step 3: microprocessor controller in vehicle-mounted ethernet test equipment can to the transmission signal between two Devices to test into
Row packet capturing, and send the signal that packet capturing obtains to computer, computer is real-time to the data of acquisition by test function module
It is analyzed, is monitored in real time between ECU and sensor, whether the communication detected between Devices to test is normal.
A method of it is tested using vehicle-mounted ethernet test system device under test, further includes test pattern or group
Packet analysis or simulation model；
Test pattern include: after the completion of the communication connection between computer, vehicle-mounted ethernet test equipment, Devices to test, to
The vehicle-mounted ethernet test equipment that measurement equipment receives transmit from Computer signal, Devices to test based on the received signal to vehicle
It carries ethernet test equipment to be transmitted, vehicle-mounted ethernet test equipment sends received signal to computer, and computer is logical
The various functions of crossing test function module device under test are tested, and check whether Devices to test works normally；Or it is to be measured
Equipment can also actively transmit a signal to vehicle-mounted ethernet test equipment, and vehicle-mounted ethernet test equipment transmits a signal to meter
Calculation machine is tested by the test function module in computer.
Group packet analysis includes: when the communication connection between computer, vehicle-mounted ethernet test equipment, Devices to test is completed
Afterwards, pass through the application program launching Devices to test in test function module and the data communication between computer, test function mould
Block packages analysis to received data.
Simulation model includes: when the communication connection between computer, vehicle-mounted ethernet test equipment, Devices to test is completed
Afterwards comprising virtual signal is generated by the test function module of computer and is communicated with Devices to test or Devices to test
It generates signal and computer is sent to by vehicle-mounted ethernet test equipment and communicated, vehicle-mounted ethernet test equipment being capable of mould
Be intended to be vehicle-mounted ethernet node equipment, can receive data and send data, support IEEE1722 agreement talker and
Simulation EAVB, DoIP, SomeIP, UdpNM, GPTP agreement is supported in listener simulation.
The present invention is that the standard based on BroadR-Reach is designed using the PHY module of 100Base-T1, the first kind
MAC chip is matched with the PHY module of 100Base-T1, and MAC chip can also become MAC hardware, and only title is not here
Together, substantial function is identical.The present invention is that the agreement based on ethernet standard is set using the PHY module of 100Base-Tx
Meter, the second class MAC chip are matched with the PHY module of 100Base-Tx.
As described above, a kind of equipment for carrying out communications using vehicle-mounted Ethernet of the invention tested it is vehicle-mounted with
Too net test equipment, system and method, have the advantages that
1. can be applied to the detection of the direct communication between Devices to test, and only need to can with a vehicle-mounted ethernet device
Complete test, be on the one hand it is high-efficient, can guarantee test accuracy, on the other hand, it is at low cost.
2. microprocessor controller is divided into a processor using FPGA and ARM, can flexible Application various
Scene.
3., can be to the Devices to test based on vehicle-mounted Ethernet by using the test equipment of vehicle-mounted Ethernet of the invention
Carry out systematic simulation test, the analysis of group packet, test analysis.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of the vehicle-mounted ethernet test equipment of the present invention.
Fig. 2, which is shown as the present invention, has PHY module osi model schematic diagram: (2a) 100Base-T1 PHY module, (2b)
100Base-Tx module.
Fig. 3 is shown as the integrated relationship schematic diagram between PHY, MAC, CPU three of the invention: (3a) CPU integrate MAC with
PHY；(3b) CPU integrates MAC, and PHY uses individual chips；(3c) CPU is independent, MAC and PHY integrated chip；(3d) CPU,
MAC, PHY use individual chips.
Fig. 4 is shown as the embodiment of the vehicle-mounted ethernet test device structure of the present invention.
Fig. 5 is shown as the embodiment of the vehicle-mounted ethernet test device structure of the present invention.
Fig. 6 is shown as the embodiment of the vehicle-mounted ethernet test device structure of the present invention.
Fig. 7 is shown as the embodiment of the vehicle-mounted ethernet test device structure of the present invention.
Fig. 8 is shown as the embodiment of the vehicle-mounted ethernet test device structure of the present invention.
Fig. 9 is shown as the embodiment tested in the vehicle-mounted ethernet test system of the present invention for device under test.
Figure 10 is shown as being used for the embodiment of probe patterns in the vehicle-mounted ethernet test system of the present invention.
Figure 11 is shown as the embodiment in the vehicle-mounted ethernet test system of the present invention for group packet analytical model.
Figure 12 is shown as being used for the embodiment of simulation model in the vehicle-mounted ethernet test system of the present invention.
Figure 13 is shown as being used for the embodiment of simulation model in the vehicle-mounted ethernet test system of the present invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below；Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way；It should be pointed out that the ordinary skill of this field
For personnel, under the premise of not departing from the present invention, various modifications and improvements can be made；These belong to guarantor of the invention
Protect range.
Now in conjunction with Figure of description, the specific workflow of each unit of the invention is explained in detail:
The embodiment of the present invention proposes that a kind of vehicle-mounted ethernet test equipment includes at least as shown in Fig. 1: containing the micro- of CPU
Processing controller, the PHY module of 100Base-Tx, the PHY module of 100Base-T1, the PHY module phase with 100Base-T1
The second class MAC chip, the first kind interface, the second class to match with first kind MAC chip, with the PHY module of 100Base-Tx
Interface, power module；The PHY module of 100Base-T1 is electrically connected with first kind MAC chip and first kind interface respectively, the first kind
MAC chip is electrically connected with CPU；The PHY module of 100Base-Tx is electrically connected with the second class MAC chip and the second class interface respectively,
Second class MAC chip is electrically connected with the microprocessor controller of CPU；The PHY module of 100Base-T1 and the quantity of first kind interface
Two are all included at least, the PHY module of respectively first 100Base-T1, the PHY module of second 100Base-T1, first
A first kind interface, second first kind interface, the PHY module of first 100Base-T1 are electrically connected with first first kind interface
It connects, the PHY module of the 2nd 100Base-T1 is electrically connected with second first kind interface, wherein the PHY of first 100Base-T1
Module and the PHY module of second 100Base-T1 are directly electrically connected and are able to carry out the transmission of data；
The above module is all integrated into printed circuit board (PCB), and the entire pcb board of electric power source pair of module is powered, Jin Ertong
Pcb board is crossed to be powered the above module；
In particular it is required that explanation, the microprocessor containing CPU only illustrate CPU in Fig. 1, do not show that other parts,
Such as memory RAM, memory (solid state hard disk or nor-flash etc.).
Defined in PHY International Standards Organization define a standard module, STA(Station Management Entity,
Management entity, generally MAC or CPU) pass through SMI(Serial Manage Interface) behavior of PHY, state are carried out
It manages and controls, and specifically managing and controlling movement is realized by the register inside read-write PHY.PHY is physical interface
Transceiver, it realizes the physical layer of osi model.IEEE-802.3 standard defines ethernet PHY, including MII/GMII(medium
Stand-alone interface) sublayer, PCS(Physical Coding Sublayer), PMA(physical medium it is additional) sublayer, PMD(physical medium be related) sublayer,
MDI sublayer, it meets in IEEE-802.3k for the 14th article of 10BaseT() and the 24th article and the 25th article of 100BaseT X() rule
Model.As attached drawing 2 has PHY module osi model.Scheming (2a) is based on IEEE 802.3bp 100base-T1 or in IEEE
The PHY layer and matched MAC layer that 802.3bw 100base-T1 is defined, up from data link layer, be followed successively by network layer,
Transport layer, session layer, expression layer, application layer.Figure (2b) PHY(Physical Layer) it is IEEE802.3 100base-Tx fixed
The PHY layer and matched MAC layer, data link layer of justice up from data link layer are followed successively by network layer, transport layer, session
Layer, expression layer, application layer.From figure (2a) and figure (2b), based in osi model or other models, difference be physical layer,
MAC layer is from bottom to top from data link layer no essential distinction.
MAC(Media Access Control) i.e. medium access control sublayer agreement.There are two concepts for the part: MAC
A hardware control and MAC communication be can be with agreement.The agreement is located at the lower half of data link layer in seven layer protocol of OSI
Part, be mainly responsible for control with connect the physical medium of PHY layer.When sending data, MAC protocol can judge in advance be
It is no to send data, if can send will to data plus some control information, finally by data and control information with
Defined format is sent to PHY layer；When receiving data, whether MAC protocol first determines whether the information of input and passes
Mistake is inputed by mistake, if removing control information without mistake and being sent to LLC(logic link control) layer.The layer protocol is Ethernet
MAC is defined by 3 ethernet standard of IEEE-802..Newest MAC supports two kinds of rates of 10Mbps and 100Mbps simultaneously.
The embodiment of the present invention is that the standard based on BroadR-Reach is designed using the PHY module of 100Base-T1,
First kind MAC chip is matched with the PHY module of 100Base-T1, and MAC chip can also become MAC hardware, and the two is
Title is different, and substantial function is identical.The PHY module of 100Base-Tx used in the embodiment of the present invention is based on ether network mark
Quasi- agreement is designed, and the second class MAC chip is matched with the PHY module of 100Base-Tx.First kind interface is
100Base-T1 interface, the second class interface are 100base-Tx interface.
First kind MAC chip can be integrated in the PHY module of 100Base-T1 or in CPU or first kind MAC core
Piece, 100Base-T1 PHY module can be integrated in CPU；Second class MAC chip can all be integrated in 100Base-Tx's
In PHY module or in CPU or the PHY module of the second class MAC chip, 100Base-Tx can be integrated in CPU；Specifically
Ground might not all be independent chip that is, for MAC chip, PHY module and CPU three parts, can there are four types of combine shape
Formula, referring to figure (3a) to figure (3d):
1) CPU integrates MAC and PHY, and is encapsulated as microprocessor controller, schemes (3a)；
2) CPU integrates MAC and is encapsulated as microprocessor controller, and PHY uses individual chips, schemes (3b)；
3) CPU uses individual chips, and MAC and PHY integrate and are encapsulated as chip, schemes (3c)；
4) CPU, MAC, PHY complementation are integrated, respectively use independent chip, scheme (3d).
Specifically, the microprocessor controller for the integrated CPU that the present invention uses, when independent core is respectively adopted in CPU, MAC, PHY
When piece, also there are three types of independent modes, and mode 1: microprocessor controller is integrated with CPU, MAC, PHY chip, mode 2: micro process
Controller is integrated with CPU, but the individual chips that not integrated MAC and PHY, MAC and PHY become one.Mode 3: micro process
Controller is integrated with CPU, but not integrated MAC and PHY chip, MAC and PHY are respectively as independent chip.
Attached drawing 4 lists MAC integrated chip in microprocessor controller, and PHY uses an embodiment of individual chips；
Attached drawing 5 lists MAC, PHY, the microprocessor controller containing CPU is all made of an embodiment of individual chips；
It include FPGA programmable logic controller (PLC) and the controller based on ARM framework in microprocessor controller, FPGA is programmable to patrol
Controller is collected to be electrically connected with the controller of ARM framework.FPGA programmable logic controller (PLC) by Verilog program write-in realize with
The controller of the PHY module of first kind MAC chip, 100Base-T1, FGPA and ARM framework is electrically connected, referring to Fig. 6.When
Using FPGA programmable logic controller (PLC) and the controller based on ARM framework, it is preferred that first kind MAC integrated chip is in FPGA
In programmable logic controller (PLC), the second class MAC integrated chip is in the controller of ARM framework, as attached drawing 7 lists the first kind
MAC integrated chip is in FPGA programmable logic controller (PLC), and the second class MAC integrated chip is in one in the controller of ARM framework
Embodiment.And attached drawing 8 lists microprocessor controller using FPGA programmable logic controller (PLC) and the controller based on ARM framework
Structure, but first kind MAC chip is not integrated in FPGA programmable logic controller (PLC), and the second class MAC chip is not also integrated in
In the controller of ARM framework.
In the embodiment of the present invention, the PHY module of 100Base-T1 and the quantity of first kind interface respectively include 4, except the
The PHY module of one 100Base-T1, first first kind interface, the PHY module of second 100Base-T1, second first
Outside class interface, the another PHY module including third 100Base-T1, PHY module, the third a first of the 4th 100Base-T1
Class interface, the 4th first kind interface；Wherein, the PHY module of third 100Base-T1 is electrically connected with third first kind interface
It connects, the PHY module of the 4th 100Base-T1 is electrically connected with the 4th first kind interface, wherein third 100Base-T1's
PHY module is not electrically connected directly with the PHY module of the 4th 100Base-T1.
Specifically, the PHY module of first kind interface, 100Base-T1, the PHY module of the second class interface, 100Base-Tx
Quantity, can be for 1,2,4 or more, can be adjusted according to the quantity of test equipment.First kind interface
Quantity is identical as the quantity of 100Base-T1 module, first kind MAC number of chips；The quantity and 100Base-Tx of second class interface
PHY module, the second class MAC number of chips it is identical.First kind interface is 100Base-T1 interface, and the second class interface is RJ-
45 interfaces.
In the embodiment of the present invention, 4 first kind interfaces are for group packet analysis, the communication number generated to the external equipment of access
According to being analyzed, 4 first kind interfaces are 100Base-T1 interface.First first kind interface and second first kind interface are used
In probe patterns, probe patterns are applied to obtain the data transmit between two distinct devices；The third first kind connects
Mouth is used for analog functuion, receives the analogue data that external equipment generates and is simultaneously transmitted, analyzes；4th first kind interface is used for
Test pattern carries out test analysis to the functions of the equipments of access.
The embodiment of the invention also includes: the computer containing test function module, vehicle-mounted ethernet test equipment, wherein
Test function module can be integrated into computer in a manner of software or hardware, can be used in probe patterns, group packet analysis,
Simulation model, test pattern.Specifically, when Devices to test (can be laser radar sensor etc, ECU) is tested
When, test macro includes the computer containing test function module and RJ45 interface, vehicle-mounted ethernet test equipment, this is waited for
Measurement equipment is separately connected the 100base-T1 interface and vehicle-mounted ethernet test of Devices to test by vehicle-mounted Ethernet data line
The 100base-T1 interface of equipment is separately connected by the Ethernet data line of standard positioned at computer and vehicle-mounted ethernet test
RJ45 interface in equipment.Until the communication connection between completion computer, vehicle-mounted ethernet test equipment, Devices to test, is visited
Needle mould formula, the analysis of group packet, analog functuion and test pattern include TCP, UDP, ARP, DHCP, DoIP, UDS, SOMEIP,
GPTP, the analysis and field analysis of 1722, UDPNM protocol packages.
Specifically, vehicle-mounted ethernet test equipment of the invention can be used for testing the progress of the equipment based on vehicle-mounted Ethernet
Functional test, after the completion of the communication connection between computer, vehicle-mounted ethernet test equipment, Devices to test, referring to Fig. 9, to
The vehicle-mounted ethernet test equipment that measurement equipment receives transmit from Computer signal, Devices to test based on the received signal to vehicle
Ethernet test equipment transmission information is carried, vehicle-mounted ethernet test equipment sends received information to computer, and computer is logical
The various functions of crossing test function module device under test are tested, and check whether Devices to test works normally.Or it is to be measured
Equipment can also actively communicate information to vehicle-mounted ethernet test equipment, and vehicle-mounted ethernet test equipment communicates information to meter
Calculation machine is tested by the test function module in computer.
In addition, the present invention is also used as analyzing data packet, and referring to Figure 11, when using group packet analytical model,
4 100base-T1 interfaces in vehicle-mounted ethernet test equipment, which can be connected, connects Sensor by vehicle-mounted Ethernet data
Or the 100base-T1 interface in ECU, the test of computer and vehicle-mounted Ethernet is then separately connected by standard ethernet line
RJ45 interface in equipment.After connecting, vehicle-mounted ethernet test equipment will receive the data transmission from Sensor or ECU
To computer, computer packages analysis to received data by test function module, and Ethernet protocol group packet analyzes function
It can need to support common Ethernet protocol, such as support TCP, UDP, ARP, DHCP, DoIP, UDS, SOMEIP, GPTP, 1722,
The analysis and field analysis of UDPNM protocol package are able to carry out UDP real-time traffic and count and draw, be able to carry out TCP real-time traffic
It counts and draws, be able to carry out total load real-time traffic and count and draw.
Communication test between Devices to test, such as the communication between ECU and Sensor or the communication between ECU and ECU,
At present there is no very good solution method, a kind of communication means between Devices to test, this implementation are provided in the present embodiment
In be defined as probe patterns, between two Devices to test communication carry out packet capturing analysis.Specific reference to Figure 10, such as sensor
It is connected by vehicle-mounted Ethernet data line with the 100base-T1 second interface of vehicle-mounted ethernet test equipment, ECU passes through vehicle
It carries Ethernet data line to be connected with the first interface of the 100base-T1 of vehicle-mounted ethernet test equipment, vehicle-mounted ethernet test
Equipment is connected to a computer by standard ethernet data line by RJ-45 interface, due to vehicle-mounted ether in the present embodiment
The PHY module of first 100Base-T1 in net test equipment and the PHY module of second 100Base-T1 directly carry out electricity
It connects and carries out data transmission.Therefore when the test function module in computer calls application program to enable probe patterns, ECU
Start enabling signal between sensor interact, the signal between ECU and sensor need not progress signal resolution, but original letter
Number transmitting, i.e. sensor generates and signal and signal passed to second 100base-T1 in vehicle-mounted ethernet test equipment
PHY module, then signal is directly passed to the PHY of first 100base-T1 by the PHY module of second 100base-T1
Module, signal are being transmitted to ECU by 100base-T1 module.Microprocessor controller in vehicle-mounted ethernet test equipment can be right
Transmission signal between ECU and sensor carries out packet capturing, and the signal that packet capturing obtains is sent to the PHY module of 100base-Tx
Computer is sent to by RJ45 interface after being converted, computer is by test function module to the data real-time perfoming of acquisition
Analysis, monitors in real time between ECU and sensor, checks whether the communication between them is normal.Probe in this implementation
Mode, the communication between ECU and sensor are direct communications, signal not through conversion but direct communication, thus be avoided that
Mistake caused by conversion between signal, while can be improved efficiency.And only with a vehicle-mounted ethernet test equipment, in this way
Significantly save the cost.The signal of crawl, which need to only carry out a protocol translation, can be transferred to progress data point in computer
Analysis and monitoring, it is ensured that the authenticity of data reduces the communication mistake between Devices to test.
In addition, the present invention is also used as simulation test comprising generated by the test function module of computer virtual
Signal communicated with sensor or sensor generate signal and by vehicle-mounted ethernet test equipment send to computer into
Row communication.When simulation model, vehicle-mounted ethernet test equipment can be modeled as ethernet node equipment, can receive data,
Can send data, support talker and the listener simulation of IEEE1722 agreement, can support simulation EAVB, DoIP,
SomeIP, UdpNM, GPTP agreement.
Vehicle-mounted ethernet test equipment includes external power supply module, for being powered to external equipment.External power supply
Module can provide the voltage of 1.5V ~ 36V, can be by the way of USB power supply interface, but be not limited to USB power supply interface.
The embodiment of the invention also includes the toggle switch with control first kind interface, for controlling the active of first kind interface
Mode (Master) and subordinate mode (Slave), switch are installed on first kind interface.
The embodiment of the invention also includes DB9 interface, DB9 interface is electrically connected with micro process control.
The embodiment of the invention also includes power indicator, first kind interface indicators, the second class interface indicators, use respectively
It is indicated in the working condition to power supply and first kind interface, the second class interface.
The embodiment of the present invention can test the communication between Devices to test and testing tool, can also test between Devices to test
Communication it is whether normal, be the vast improvement to the prior art.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (16)
1. a kind of vehicle-mounted ethernet test equipment, which is characterized in that include at least:
The PHY module of microprocessor controller, 100Base-Tx containing CPU, the PHY module of 100Base-T1 and 100Base-
First kind MAC chip that the PHY module of T1 matches, the second class MAC chip to match with the PHY module of 100Base-Tx,
First kind interface, the second class interface；
The PHY module of 100Base-T1 is electrically connected with first kind MAC chip and first kind interface respectively, first kind MAC chip with
Microprocessor controller electrical connection containing CPU；
The PHY module of 100Base-Tx is electrically connected with the second class MAC chip and the second class interface respectively, the second class MAC chip with
Microprocessor controller electrical connection containing CPU；
PHY module, first kind MAC chip and the first kind interface of the 100Base-T1 at least includes: first first kind MAC
Chip, second first kind MAC chip, the PHY module of first 100Base-T1, the PHY module of second 100Base-T1,
First first kind interface, second first kind interface, the PHY module of first 100Base-T1 respectively with first
A kind of MAC chip, the electrical connection of first first kind interface, the PHY module of second 100Base-T1 respectively with second first
Class MAC chip, second first kind interface electrical connection, wherein the PHY module of first 100Base-T1 and second
The PHY module of 100Base-T1 is directly electrically connected and carries out data transmission or first first kind MAC chip and
The MAC chip of two first kind is directly electrically connected and carries out data transmission.
2. vehicle-mounted ethernet test equipment according to claim 1, which is characterized in that the first kind MAC integrated chip
In the PHY module of 100Base-T1 or in the microprocessor controller containing CPU or first kind MAC chip, 100Base-T1
PHY module be integrated in the microprocessor controller containing CPU；
Or the second class MAC integrated chip in the PHY module of 100Base-Tx or in the microprocessor controller containing CPU, or
Second class MAC chip, 100Base-Tx PHY module be integrated in the microprocessor controller containing CPU；
Or first kind MAC chip can be integrated in the PHY module of 100Base-T1 or the microprocessor controller containing CPU
In CPU or the PHY module of first kind MAC chip, 100Base-T1 can be integrated in the CPU of the microprocessor controller containing CPU
It is interior；
Or second class MAC chip can all be integrated in the PHY module of 100Base-Tx or the microprocessor controller containing CPU
CPU in or the PHY module of the second class MAC chip, 100Base-Tx can be integrated in the microprocessor controller containing CPU
CPU in.
3. vehicle-mounted ethernet test equipment according to claim 1, which is characterized in that the microprocessor controller further includes
FPGA programmable logic controller (PLC) and controller based on ARM framework, the control of FPGA programmable logic controller (PLC) and ARM framework
Device electrical connection.
4. vehicle-mounted ethernet test equipment according to claim 3, which is characterized in that the FPGA Programmable logical controller
The PHY module for realizing first kind MAC chip, 100Base-T1 is written by program for device, and is electrically connected with the controller of ARM framework
It connects.
5. vehicle-mounted ethernet test equipment according to claim 3, which is characterized in that the first kind MAC integrated chip
Into FPGA programmable logic controller (PLC)；In the second class MAC integrated chip to the controller of ARM framework.
6. vehicle-mounted ethernet test equipment according to claim 1, which is characterized in that the quantity of the first kind interface with
Quantity, the first kind MAC number of chips of 100Base-T1 module are identical；The quantity of the second class interface and 100Base-Tx's
PHY module, the second class MAC number of chips are identical.
7. vehicle-mounted ethernet test equipment according to claim 1, which is characterized in that the first kind interface is
100Base-T1 interface, the second class interface are RJ-45 interface.
8. vehicle-mounted ethernet test equipment according to claim 1, which is characterized in that first first kind interface with
Second first kind interface obtains the transmission signal between two Devices to test for probe patterns.
9. vehicle-mounted ethernet test equipment according to claim 8, which is characterized in that the PHY mould of the 100Base-T1
Block and first kind interface further include: the PHY module of third 100Base-T1, PHY module, the third of the 4th 100Base-T1
A first kind interface, the 4th first kind interface；The PHY module and third first kind interface of the third 100Base-T1
Electrical connection, the PHY module of the 4th 100Base-T1 are electrically connected with the 4th first kind interface, wherein third 100Base-T1
PHY module be not electrically connected directly with the PHY module of the 4th 100Base-T1.
10. vehicle-mounted ethernet test equipment according to claim 9, which is characterized in that the third first kind interface
Analogue data that external equipment generates is received for analog functuion and is transmitted, is analyzed；
4th first kind interface is used to carry out test pattern analysis to the functions of the equipments of access；
First first kind interface, second first kind interface, third first kind interface, the 4th first kind interface are used for group
Packet analysis: the communication data generated to the external equipment of access is analyzed.
11. vehicle-mounted ethernet test equipment according to claim 10, which is characterized in that the probe patterns, group packet point
Analysis, analog functuion and test pattern include TCP, UDP, ARP, DHCP, DoIP, UDS, SOMEIP, GPTP, 1722, UDPNM association
Discuss the analysis and field analysis of packet.
12. vehicle-mounted ethernet test equipment according to claim 1, which is characterized in that further include being connect with the control first kind
The toggle switch and DB9 interface of mouth, wherein toggle switch is used to control the aggressive mode and subordinate mode of first kind interface；
DB9 interface is electrically connected with the microprocessor controller containing CPU, for testing the equipment containing DB9 interface.
13. vehicle-mounted ethernet test equipment according to claim 1, which is characterized in that further include power supply module, external confession
Electric module and printed circuit board, printed circuit board are electrically connected with power supply module and external power supply module respectively, and power supply module is used for
It is powered to printed circuit board, external power supply module is powered external equipment；
The microprocessor controller containing CPU, the PHY module of 100Base-Tx, the PHY module of 100Base-T1, with
The second class that the PHY module of first kind MAC chip and 100Base-Tx that the PHY module of 100Base-T1 matches matches
MAC chip, first kind interface, on the second class interface all IC printed boards.
14. a kind of vehicle-mounted ethernet test system characterized by comprising computer, test function module, claim 1 to
Vehicle-mounted ethernet test equipment described in any one of 13, wherein test function module is integrated in a manner of software or hardware
Into computer.
15. a kind of method tested using vehicle-mounted ethernet test system device under test, test macro includes containing survey
Try vehicle-mounted ethernet test equipment described in the computer of functional module, any one of claims 1 to 13, which is characterized in that
Including probe patterns, probe patterns the following steps are included:
Step 1: two Devices to test for being used for probe patterns being passed through into vehicle-mounted Ethernet data line respectively and are connected to vehicle-mounted ether
PHY module with any two 100Base-T1 or any two first kind MAC chip in net test equipment carry out direct
It connects and the two 100Base-T1 interfaces that match；
Step 2: the test function module in computer calls application program to enable probe patterns, makes between its ECU and sensor
Start enabling signal interaction；
Step 3: the microprocessor controller in vehicle-mounted ethernet test equipment carries out the transmission signal between two Devices to test
Packet capturing, and send the signal that packet capturing obtains to computer, computer by test function module to the data of acquisition in real time into
Row analysis, monitors in real time between ECU and sensor, and whether the communication detected between Devices to test is normal.
16. a kind of side tested using vehicle-mounted ethernet test system device under test according to claim 15
Method, which is characterized in that further include test pattern or the analysis of group packet or simulation model；
The test pattern includes: when the communication connection between computer, vehicle-mounted ethernet test equipment, Devices to test is completed
Afterwards, Devices to test receive that vehicle-mounted ethernet test equipment transmits from Computer signal, Devices to test is believed based on the received
It number is transmitted to vehicle-mounted ethernet test equipment, vehicle-mounted ethernet test equipment sends received signal to computer, meter
Calculation machine is tested by the various functions of test function module device under test, checks whether Devices to test works normally；Or
Person's Devices to test can also actively transmit a signal to vehicle-mounted ethernet test equipment, and vehicle-mounted ethernet test equipment passes signal
Computer is given, is tested by the test function module in computer；
Described group of packet analysis includes: when the communication connection between computer, vehicle-mounted ethernet test equipment, Devices to test is completed
Afterwards, pass through the application program launching Devices to test in test function module and the data communication between computer, test function mould
Block packages analysis to received data；
The simulation model includes: when the communication connection between computer, vehicle-mounted ethernet test equipment, Devices to test is completed
Afterwards comprising virtual signal is generated by the test function module of computer and is communicated with Devices to test or Devices to test
It generates signal and computer is sent to by vehicle-mounted ethernet test equipment and communicated, vehicle-mounted ethernet test equipment being capable of mould
Be intended to be vehicle-mounted ethernet node equipment, can receive data and send data, support IEEE1722 agreement talker and
Simulation EAVB, DoIP, SomeIP, UdpNM, GPTP agreement is supported in listener simulation.
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| CN201910597496.8A CN110138624A (en) | 2019-07-04 | 2019-07-04 | Vehicle-mounted ethernet test equipment, system and test method |
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| CN111404697A (en) * | 2020-03-31 | 2020-07-10 | 北京经纬恒润科技有限公司 | Vehicle-mounted Ethernet simulation board card |
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| CN113347273A (en) * | 2021-06-24 | 2021-09-03 | 中国第一汽车股份有限公司 | Vehicle-mounted Ethernet data conversion method, device, equipment and medium |
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| CN110514931A (en) * | 2019-08-29 | 2019-11-29 | 北京经纬恒润科技有限公司 | The electromagnetic compatibility test system and method for equipment with vehicle-mounted ethernet feature |
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| CN110471400A (en) * | 2019-08-30 | 2019-11-19 | 上海怿星电子科技有限公司 | A kind of vehicle-mounted Ethernet real steering vectors method |
| CN110955230B (en) * | 2019-12-05 | 2021-03-02 | 北京国科天迅科技有限公司 | ECU and system for activating TestMode of real vehicle PHY under vehicle-mounted Ethernet architecture |
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| CN111404697A (en) * | 2020-03-31 | 2020-07-10 | 北京经纬恒润科技有限公司 | Vehicle-mounted Ethernet simulation board card |
| CN115129021A (en) * | 2021-03-29 | 2022-09-30 | 广州汽车集团股份有限公司 | Method and device for testing vehicle-mounted Ethernet |
| CN115129021B (en) * | 2021-03-29 | 2024-03-01 | 广州汽车集团股份有限公司 | Method and device for testing vehicle-mounted Ethernet |
| CN113114501A (en) * | 2021-04-09 | 2021-07-13 | 北京国科天迅科技有限公司 | Method and device for self-adapting of driving end and driven end of 100Base-T1 vehicle-mounted Ethernet |
| CN113259200A (en) * | 2021-05-18 | 2021-08-13 | 东风汽车集团股份有限公司 | Vehicle-mounted Ethernet switch hardware testing method, device, equipment and storage medium |
| CN113347273A (en) * | 2021-06-24 | 2021-09-03 | 中国第一汽车股份有限公司 | Vehicle-mounted Ethernet data conversion method, device, equipment and medium |
| CN114826954A (en) * | 2021-06-30 | 2022-07-29 | 长城汽车股份有限公司 | Vehicle-mounted Ethernet monitoring system and monitoring method |
| CN114629827A (en) * | 2022-04-29 | 2022-06-14 | 重庆长安新能源汽车科技有限公司 | System and method for testing throughput of vehicle-mounted Ethernet interface |
| CN115102888A (en) * | 2022-06-17 | 2022-09-23 | 北京经纬恒润科技股份有限公司 | Vehicle-mounted Ethernet protocol consistency test method, device and related equipment |
| CN115208805A (en) * | 2022-07-01 | 2022-10-18 | 中国电子科技集团公司第五十四研究所 | System and method for testing multi-path Ethernet physical layer transceiver |
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