CN108111606A - A kind of scenario simulation and test method for V2X equipment application functional verifications - Google Patents
A kind of scenario simulation and test method for V2X equipment application functional verifications Download PDFInfo
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- CN108111606A CN108111606A CN201711421506.XA CN201711421506A CN108111606A CN 108111606 A CN108111606 A CN 108111606A CN 201711421506 A CN201711421506 A CN 201711421506A CN 108111606 A CN108111606 A CN 108111606A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters
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- G06F30/20—Design optimisation, verification or simulation
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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
- H04L43/50—Testing arrangements
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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
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
- H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information
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Abstract
The present invention provides a kind of scenario simulation and test method for V2X equipment application functional verifications, and this method carries out road Behavior modeling using Sumo instruments first, generates trail file；Trail file is imported into NS2 instruments, analog simulation is carried out, while generates GPS data file；Multiple GPS data files in Same Scene are imported in distinct device simultaneously, whether observation V2X equipment is it is anticipated that alarm, so as to verify functions of the equipments.The present invention is not required actual vehicle to can verify that functions of the equipments, for the early development stage, largely saves human and material resources cost, shortens the construction cycle, improves efficiency, at the same test scene covering more fully, scene it is reproducible.
Description
Technical field
The invention belongs to car networking technology fields, and in particular to a kind of scene mould for V2X equipment application functional verifications
Plan and test method.
Background technology
As auto industry enters Internet era, V2X (vehicle to everthing) is as following intelligent transportation
Key component in transportation technology, is more taken seriously.Between V2X technical supports vehicle and vehicle, vehicle and ambient enviroment it
Between communicate so that vehicle can obtain traffic information, pedestrian information, road information, other information of vehicles etc., so as to danger
Dangerous accident carries out early warning, and help reduces traffic accident, improves traffic safety, meanwhile, the optimization magnitude of traffic flow is additionally aided, is subtracted
Few traffic congestion, improves traffic efficiency.
V2X technologies are more early in U.S.'s development, although starting late at home, promote in recent years swift and violent.For V2X equipment
Functional verification, the method for using real steering vectors mostly, this method needs equipment being installed in real vehicles, is limited to vehicle
The factors such as resource, place resource, human resources, meanwhile, real steering vectors danger is larger in some dangerous scenes, is not easy to grasp
Make, substantially prolong the construction cycle, improve cost, therefore, it is extremely heavy to design a kind of auxiliary V2X device contexts test method
It will.
The content of the invention
To solve the above-mentioned problems, the present invention provides a kind of scenario simulation and survey for V2X equipment application functional verifications
Method for testing, the method are loaded corresponding logical by SUMO tool design scenes, simulation generation trail file in NS2 instruments
Believe protocol module, the trail file for importing generation is emulated, and will finally emulate each GPS data of Same Scene of generation simultaneously
Distinct device is imported, expected alarm is verified, completes simulation and test；
Further, the described method includes：
Step S10：Design scenario realizes the scene using SUMO instruments, carries out road Behavior modeling, generation track text
Part；
Step S20：Communication protocol module needed for loading, adds functional interface in NS2 instruments, imports trail file and carries out
Emulation generates GPS data file；
Step S30：Each GPS data file in the Same Scene that generation will be emulated imports distinct device simultaneously, and observation is set
For in the process of running whether it is anticipated that alarming, so as to verify functions of the equipments；
Further, the step S10 specifically includes following steps：
Step S11：According to design scenario, manual construction road node file；
Step S12：Manual editing road roadside file and type file build side and set its attribute, and attribute includes track
Number, maximum speed, priority and permission type of vehicle；
Step S13：Manual editing's configuration file specifies input, output, runs related command, generates road network file；
Step S14：Manual construction traffic stream file, this document is for defining vehicle motion track, including track of vehicle road
Footpath, vehicle fleet size, vehicle color, acceleration, deceleration and speed；
Step S15：Road network file with traffic stream file is combined, performs the corresponding command, trail file needed for generation；
Further, the step S20 specifically includes following steps：
Step S21：Required protocol module is loaded in NS2, addition relevant configuration, undated parameter update Makefile
File recompilates NS2；
Step S22：According to demand, add function realize code, increase copying interface, realize positions of mobile nodes with
Track, node data periodically acquire, and NS2 is recompilated in Data Format Transform and its output and storage；
Step S23：Trail file is imported into NS2, performs simulation process, generates GPS data file；
Further, the step S30 specifically includes following steps：
Step S31：Auxiliary script is edited, is implemented function such as：The ticket reserving time is reached, starts to send number to corresponding serial ports
According to；According to the cycle of setting, corresponding data is sent with certain frequency；Other data needed for ancillary equipment；
Step S32：Using the GPS data input port of same PC connections equipment, start serial ports instrument, open corresponding string
Mouthful；
Step S33：Run Script sets the PC times, when reaching the ticket reserving time, starts to send data to equipment；
Step S34：Whether observation device output meets expection；
Beneficial effects of the present invention are as follows：
1)：The functional verification of V2X equipment is allow to lose contact with reality vehicle, largely facilitates developer and test
Personnel carry out functional verification to equipment, have saved vehicle resources, place resource and human resources；
2)：Some dangerous larger driver behaviors are avoided, the construction cycle is shortened, reduces cost, be easy to use
And maintenance.
Description of the drawings
Fig. 1 is the flow chart of the method for the invention；
Fig. 2 positions scene original state design sketch of the embodiment of the present invention；
Fig. 3 positions test system of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.On the contrary, the present invention cover it is any be defined by the claims the present invention spirit and scope on do
Replacement, modification, equivalent method and scheme.Further, in order to which the public is made to have a better understanding the present invention, below to this
It is detailed to describe some specific detail sections in the datail description of invention.It is thin without these for a person skilled in the art
The description of section part can also understand the present invention completely.
The invention will be further described in the following with reference to the drawings and specific embodiments, but not as a limitation of the invention.
Below most preferred embodiment is enumerated for the present invention：
As shown in Figure 1-Figure 3, the present invention provides a kind of scenario simulation and test side for V2X equipment application functional verifications
Method need not be that can verify that the function of V2X equipment by real vehicles, avoid and real vehicles be used in test process is developed
The driving behavior of simulated hazard scene, shortens the construction cycle, has saved the costs such as manpower, place, vehicle.
Specific implementation step includes：
Step S10：Design scenario realizes the scene using SUMO instruments, carries out road Behavior modeling, generation track text
Part；
Step S20：Communication protocol module needed for loading, adds functional interface in NS2 instruments, imports trail file and carries out
Emulation generates GPS data file；
Step S30：Each GPS data file in the Same Scene that generation will be emulated imports distinct device simultaneously, and observation is set
For in the process of running whether it is anticipated that alarming, so as to verify functions of the equipments.
The step S10 specifically includes following steps：
Step S11：According to design scenario, manual construction road node file；The extension name of node file is generally
" .nod.xml " describes a node in file per a line, and specific form is：
<Node id="<STRING>" x="<FLOAT>" y="<FLOAT>" [type="<TYPE>”]/>
Wherein italics represents data type, is optional parameters in square brackets, wherein each attribute has specific meaning
Justice and codomain；
Step S12：Manual editing road roadside file and type file build side and set its attribute, such as number of track-lines, maximum
Speed allows type of vehicle etc.；Side file extension is generally " .edg.xml ", and the specific form for describing each side is：
<Edge id="<STRING>" (fromnode="<NODE_ID>" tonode="<NODE_ID>”|xfrom
="<FLOAT>" yfrom="<FLOAT>" xto="<FLOAT>" yto="<FLOAT>") [(type="<STRING>”|
Nolanes="<INT>" speed="<FLOAT>”
Priority="<UINT>" length="<FLOAT>”)]
[shape="<2D_POINT>[<2D_POINT>] * "] [spread_type=" center "]/>
Equally, italics represents data type, is optional parameters in square brackets, in addition, " () " and " | " combination expression parameter
Selectable form of presentation, i.e. opposite side originate and the definition of terminal node can use node_id, can also use position coordinates
Description, each side is unidirectional；The extension name of side type is generally " .typ.xml ", and describing mode is：
<Type id="<STRING>" nolanes="<INT>" speed="<FLOAT>”
Priority="<UINT>”/>
Step S13：Manual editing's configuration file specifies input, output, runs related command, generates road network file；Configuration
File and road network file extension are respectively " .netc.cfg " and " .net.xml "；
Step S14：Manual construction traffic stream file, this document is for defining vehicle motion track, including track of vehicle road
Footpath, acceleration, deceleration, maximum speed etc.；Traffic flow file extension is generally " .flow.xml ", and describing mode is：
<Flow id="<ID>" from="<ORIGIN_EDGE_ID>”
To="<DESTINATION_EDGE_ID>" begin="<INTERVAL_BEGIN>”
End="<INTERVAL_END>" no="<VEHICLES_TO_EMIT>”
[type="<VEHICLE_TYPE>"] [color="<COLOR>”]/>
Step S15：Road network file is combined with traffic stream file, performs the corresponding command, trail file needed for generation
“.trace.xml”；
The step S20 specifically includes following steps：
Step S21：Required protocol module gpsr is loaded in NS2 (comprising gps.cc, gps.h, gps.tcl, gps_
The files such as config.tcl, gps_packet.h and result, scene file), it is copied under NS2 engineered paths, point
New association is added not in packet.h, cmu-trace.cc, priqueue.cc, ns-packet.tcl, ns-lib.tcl file
Related content is discussed, the compiling that new module is added in Makefile files is set, and recompilates NS2；
Step S22：According to demand, add function and realize code, increase gps_neighbor.h and gps_neighbor.c
File realizes the functions such as the newly-built of neighbor list, lookup and update；In gps.tcl files allocation project name, scenario path and
The parameters such as title, number of nodes, simulation time and the topological scope of emulation；Functional interface is added in gps.cc, sends message every time
When, it exports a GPS data and stores；It is tracked so as to fulfill positions of mobile nodes, node data periodically acquires, data lattice
Formula is converted and its exported and storage, recompilates NS2；
Step S23：Trail file is imported into NS2, is stored in scene files, performs simulation process, then it can be
GPS data file is generated in result files.
The step S30 specifically includes following steps：
Step S31：Auxiliary script is edited, is implemented function such as：The ticket reserving time is reached, starts to send number to corresponding serial ports
According to；According to the cycle of setting, corresponding data is sent with certain frequency；Other data needed for ancillary equipment；
Step S32：Using the GPS data input port of same PC connections equipment, start serial ports instrument, open corresponding string
Mouthful；
Step S33：Run Script sets the PC times, when reaching the ticket reserving time, starts to send data to equipment；
Step S34：Whether observation device output meets expection.
The present invention allows the functional verification of V2X equipment to lose contact with reality vehicle, largely facilitate developer and
Tester carries out functional verification to equipment, has saved vehicle resources, place resource and human resources, and it is dangerous to avoid some
Larger driver behavior, shortens the construction cycle, reduces cost, is easy to use and safeguards.
Embodiment：
The application scenarios of the present embodiment are that super expressway multilane two cars are run at high speed, and Fig. 2 is the applied field of this example
Scape original state design sketch, as shown in the figure, 0 vehicle and 1 vehicle travel in the same direction, 1 vehicle is in 0 front side, and 0 vehicle speed is 90km/h, 1 speed
It spends for 75km/h, 0 vehicle is from a distance close to 1 vehicle.
Next step progressively builds scene and completes test content as described above.
Step S10：Design scenario realizes the scene using SUMO instruments, carries out road Behavior modeling, generation track text
Part；
Newly-built road node file highway.nod.xml, edits this document, creates two road circuit node A (- 1000,0)
With B (1000,0):
Newly-built road roadside file highway.edg.xml, edits this document, generates two sides of road：
Newly-built type file highway.typ.xml, sets the parameters such as number of track-lines, speed limit, priority：
Newly-built configuration file highway.netc.cfg, specifies and outputs and inputs file：
Order " netconvert-c highway.netc.cfg " is performed, generates net topology files
highway.net.xml。
The traffic stream file high.flow.xml of newly-built node.This file is primarily used to define the motion track of vehicle,
The parameters such as trajectory path, acceleration, deceleration, maximum speed including configuring vehicle：
Perform duarouter orders " duarouter-n highway.net.xml-f high.flow.xml-o
Highroad.rou.xml " generates the movement locus file high.rou.xml of node.
Perform order " sumo--net-file highway.net.xml--route-files
Highroad.rou.xml--fcd-output trace.xml " generate trace.xml files, perform " python
traceExporter.py--fcd-input trace.xml--ns2config-output trace.config.tcl--
ns2mobility-output trace.mobility.tcl--ns2activity-output trace.activity.tcl”
The trace files of xml are changed into tcl files, the trail file needed for generation NS2 emulation by order by python scripts
trace.mobility.tcl。
Step S20：Communication protocol module needed for loading, adds functional interface in NS2 instruments, imports trail file and carries out
Emulation generates GPS data file；
Gpsr engineerings are imported into NS2 according to method previously and change related setting, function code is added, compiles again
It translates.
Trace.mobility.tcl files are imported into the scene files in NS2 under gpsr engineerings, perform " ns
Gps.tcl " is ordered, and generates GPS data the file 0.log and 1.log of 0 vehicle and 1 vehicle.
Step S30：Each GPS data file in the Same Scene that generation will be emulated imports distinct device simultaneously, and observation is set
For in the process of running whether it is anticipated that alarming, so as to verify functions of the equipments.
Test system is made of test PC machine and Devices to test V2X1, V2X2, as shown in Figure 3.PC machine installs SecureCRT
Instrument writes script described previously using language such as VB or Python, and PC machine is connected respectively to equipment V2X1 by different serial ports
With the GPS data input terminal of V2X2, two serial ports are opened respectively using SecureCRT instruments, and run above-mentioned script, and PC is set
Time, control data start simultaneously at transmission, and whether two equipment of observation are it is anticipated that alarm.
One kind of embodiment described above, simply more preferably specific embodiment of the invention, those skilled in the art
The usual variations and alternatives that member carries out in the range of technical solution of the present invention should all include within the scope of the present invention.
Claims (5)
1. a kind of scenario simulation and test method for V2X equipment application functional verifications, which is characterized in that the method passes through
SUMO tool design scenes, simulation generation trail file, corresponding communication protocol module is loaded in NS2 instruments, imports generation
Trail file emulated, each GPS data for the Same Scene for emulating generation is finally imported into distinct device simultaneously, verification is pre-
Phase alarms, and completes simulation and test.
2. according to the method described in claim 1, it is characterized in that, the described method includes：
Step S10：Design scenario realizes the scene using SUMO instruments, carries out road Behavior modeling, generates trail file；
Step S20：Communication protocol module needed for loading, adds functional interface in NS2 instruments, imports trail file and is imitated
Very, GPS data file is generated；
Step S30：Each GPS data file in the Same Scene that generation will be emulated imports distinct device simultaneously, and observation device exists
Whether it is anticipated that alarming, so as to verify functions of the equipments in operational process.
3. according to the method described in claim 2, it is characterized in that, the step S10 specifically includes following steps：
Step S11：According to design scenario, manual construction road node file；
Step S12：Manual editing road roadside file and type file, structure side simultaneously set its attribute, and attribute includes number of track-lines, most
Big speed, priority and permission type of vehicle；
Step S13：Manual editing's configuration file specifies input, output, runs related command, generates road network file；
Step S14：Manual construction traffic stream file, this document is for defining vehicle motion track, including track of vehicle path, vehicle
Quantity, vehicle color, acceleration, deceleration and speed；
Step S15：Road network file with traffic stream file is combined, performs the corresponding command, trail file needed for generation.
4. according to the method described in claim 2, it is characterized in that, the step S20 specifically includes following steps：
Step S21：Required protocol module is loaded in NS2, addition relevant configuration, undated parameter update Makefile files,
Recompilate NS2；
Step S22：According to demand, add function and realize code, increase copying interface, realize positions of mobile nodes tracking,
Node data periodically acquires, and NS2 is recompilated in Data Format Transform and its output and storage；
Step S23：Trail file is imported into NS2, performs simulation process, generates GPS data file.
5. according to the method described in claim 2, it is characterized in that, the step S30 specifically includes following steps：
Step S31：Auxiliary script is edited, is implemented function such as：The ticket reserving time is reached, starts to send data to corresponding serial ports；It presses
According to the cycle of setting, corresponding data is sent with certain frequency；Other data needed for ancillary equipment；
Step S32：Using the GPS data input port of same PC connections equipment, start serial ports instrument, open corresponding serial ports；
Step S33：Run Script sets the PC times, when reaching the ticket reserving time, starts to send data to equipment；
Step S34：Whether observation device output meets expection.
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| CN109255161A (en) * | 2018-08-17 | 2019-01-22 | 国营芜湖机械厂 | A kind of method that NET net meter file generates NOD net meter file |
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| CN110189517A (en) * | 2019-05-14 | 2019-08-30 | 浙江大学 | A kind of Simulation Experimental Platform towards car networking secret protection research |
| CN111191379A (en) * | 2020-01-08 | 2020-05-22 | 河北工业大学 | Virtual scene testing system and method for V2X early warning application |
| CN111417093A (en) * | 2020-05-07 | 2020-07-14 | 重庆车辆检测研究院有限公司 | Vehicle-based specification performance testing method and device for V2X efficiency application |
| CN113674546A (en) * | 2021-08-20 | 2021-11-19 | 东南大学 | Sumo simulation-based highway management and control method under V2X environment |
| CN113886209A (en) * | 2021-10-14 | 2022-01-04 | 东风汽车集团股份有限公司 | Simulation verification platform and method for V2X early warning function |
| CN113886209B (en) * | 2021-10-14 | 2023-07-11 | 东风汽车集团股份有限公司 | Simulation verification platform and method for V2X early warning function |
| CN114354215A (en) * | 2021-12-30 | 2022-04-15 | 信通院车联网创新中心(成都)有限公司 | Speed-limiting early warning function detection method for Internet of vehicles application |
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