KR102145723B1 - Test system and method for V2X applied cooperative roadway system and connected vehicle - Google Patents

Abstract

After designing a test scenario to test the autonomous cooperation road system and connected car vehicles running on the road, virtual data is generated accordingly, and input/output/internal data are collected for each system constituting the autonomous cooperation road system. It also presents a V2X-applied autonomous cooperation road and connected car test system and method that can analyze and evaluate the functions and performance of the autonomous cooperation road system and test vehicle. The presented system is an information collector that collects data from a test object, an analysis client that provides a UI for generating test rules and test scenarios, and a selected test rule and test scenario through the UI of the analysis client and generates the generated test rule. It includes a comprehensive test server that performs V2X comprehensive tests with data from the information collector according to the test scenarios it contains and analyzes the test results.

Description

Test system and method for V2X applied cooperative roadway system and connected vehicle}

The present invention relates to a system and method for testing a V2X-applied autonomous cooperation road and a connected car, and more particularly, to a system and method for testing a V2X-applied autonomous cooperation road system and a connected vehicle running the road.

Automobiles are developing in the direction of providing safety, mobility, and convenience by grafting ICT technology. By applying sensors such as radar and vision to the vehicle, it provides safety support services such as blind spot warning, collision warning, and ACC (Adaptive Cruise Control) to the driver, and DSRC (Dedicated Short-Range Communications) communication technology is applied to the vehicle. Therefore, it provides convenient services such as automatic fare collection and bus information service.

In recent years, vehicle safety, cooperative autonomous driving, and C-ITS (Cooperative-ITS) technology using V2X communication technology are being studied. V2X communication technology refers to direct vehicle-to-vehicle communication (V2V) and vehicle-to-infrastructure communication (V2I) communication from a vehicle perspective. From the perspective of C-ITS, which includes vehicles and pedestrians, roads and facilities, and integrated traffic information center, communication between pedestrians and vehicles (P2V; Pedestrian to Vehicle), communication between pedestrians and drivers (P2D; Pedestrian to Driver), between pedestrians and infrastructure. Comprehensive connectivity including communication (P2I; Pedestrian to Infrastructure), road to infrastructure (R2I), and in-vehicle network can be considered.

A plurality of wireless communication technologies are used to provide all connections considered in the C-ITS environment. For example, WAVE (Wireless Access in Vehicular Environments) communication technology is used for V2V/V2I communication, WLAN or Bluetooth technology is used for P2V/P2I communication, and sensor communication technology can be used for R2I communication. have.

Meanwhile, the V2X communication system is to provide safety and convenience services to all vehicles running in the C-ITS environment through V2V or V2I-based cooperative communication, and verification and evaluation through repeated experiments in a laboratory or actual road environment. Performance is required.

However, in particular, verification and evaluation of the V2X communication system in an actual road environment requires a lot of time and cost due to the characteristics of the test environment, and it is difficult to repeatedly test the same scenario.

Prior Art 1: Republic of Korea Patent Publication No. 10-2015-0043592 (V2X simulation device, method, computer program product) Prior Art 2: Korean Patent Registration No. 10-1902824 (V2X communication-based driving integrated simulation device)

The present invention has been proposed to solve the above-described conventional problem, and after designing a test scenario to test the autonomous cooperation road system and the connected vehicle running on the road, virtual data is generated according to the design, and V2X application autonomous cooperation road and connected car test system that collects input/output/internal data for each system constituting the system, and can analyze and evaluate the function and performance of the autonomous cooperation road system and test vehicle. Its purpose is to provide a method.

In order to achieve the above object, a V2X-applied autonomous cooperation road and connected car test system according to a preferred embodiment of the present invention includes: an information collector for collecting data from a test subject; An analysis client that provides a UI for generating test rules and test scenarios; And generating a test rule and test scenario selected through the UI of the analysis client, performing a comprehensive V2X test with data from the information collector according to a test scenario containing the generated test rule, and analyzing the test result. Test server; includes.

The test object includes: a roadside base station device for outputting dynamic vehicle information and road information using V2X communication installed around the road; A center LDM for receiving traffic information, unexpected information, vehicle operation information, and weather information, outputting a dynamic information message for each road, and receiving dynamic vehicle information and road information from the roadside base station device; In-vehicle communication terminal for outputting V2X information including dynamic information of the vehicle by using V2X communication installed in the vehicle; And a vehicle gateway that processes/transmits the V2X information from the in-vehicle communication terminal into the vehicle and transmits the information received from the vehicle internal system to the vehicle internal and external systems.

The information collector includes: a data collector collecting information from the roadside base station apparatus, a center LDM, an in-vehicle communication terminal, and a vehicle gateway and providing the information to the comprehensive test server; And a wireless packet sniffer that collects packets transmitted on a wireless communication channel transmitted by the roadside base station apparatus and the in-vehicle communication terminal and provides them to the comprehensive test server.

The data collector may provide the collected information to the comprehensive test server, including collection time and collection location information.

The comprehensive test server generates a test message on behalf of the center LDM and transmits it to the roadside base station device, the in-vehicle communication terminal, and the vehicle gateway, and collects information transmitted and received by the roadside base station device, the in-vehicle communication terminal, and the vehicle gateway. , It may include a first mode for analyzing the collected information according to the generated test scenario.

The comprehensive test server collects messages generated and transmitted by the center LDM, information transmitted and received by the roadside base station device, in-vehicle communication terminal, and vehicle gateway, and analyzes the collected information according to the generated test scenario. It may include a second mode.

The comprehensive test server may include a third mode for loading, analyzing, deleting, and modifying test data collected through the information collector and test scenario data previously collected.

An embodiment of the present invention may further include a virtual information generator that provides a virtual signal and information necessary for the test to the test object.

The virtual information generator transmits a GPS signal and a vehicle CAN signal for testing of an in-vehicle communication terminal indoors where there is no vehicle signal and a GPS signal, and the in-vehicle communication terminal receives the GPS signal and the vehicle CAN signal to perform the test. You can perform the function operation for.

The analysis client includes an icon for moving directly to a screen that enables movement to any one of the test rule editing screen, the test scenario editing screen, and the performance evaluation screen, a test rule and test scenario usage number status area, and log collection status by test date. A screen including a graph, an area displaying the status of test rules and test scenarios on a map, an area representing a table representing a list of currently generated test scenarios, and an area displaying test rule information can be displayed.

On the other hand, the V2X-applied autonomous cooperation road and connected car test method according to a preferred embodiment of the present invention is a V2X-applied autonomous cooperation road and connected car test method in the V2X-applied autonomous cooperation road and connected car test system. Collecting data from the object; Generating test rules and test scenarios; Performing a comprehensive V2X test with the collected data according to a test scenario including the generated test rule; And analyzing the results of the test.

According to the present invention having such a configuration, it is possible to provide information on an unexpected situation (work section) to an autonomous vehicle, and test a service for the autonomous vehicle to avoid the section. For example, tests for information processing (collection/storage/management/provision) functions, tests for information processing (collection/storage/management/providing) performance, and unexpected situations (work section) information provision service functions/performance You can do the test.

By configuring to collect data on wireless signals transmitted or received from the V2X communication system, deliver it to the client, and analyze it, the test for the V2X communication system can be performed easily and efficiently.

In addition, by collecting data on a plurality of layers constituting the V2X communication system, such as received signal information, vehicle communication messages, logic data, and application result values, the cause of the problem according to the test result can be more accurately analyzed. can do.

By displaying vehicle communication messages transmitted/received between vehicles and application result values determined based on them in correspondence with each other over time, an application-related test performed in the V2X communication system can be easily performed.

1 is a block diagram showing the overall configuration of an analysis system applied to the present invention.
2 and 3 are diagrams for explaining an embodiment of the configuration of a V2X communication system.
4 is a flowchart showing an analysis method for testing a V2X communication system applied to the present invention.
5 is a block diagram showing an embodiment of a configuration of a data collector.
6 and 7 are diagrams for explaining embodiments of functions and operations of a data collector.
8 is a timing diagram illustrating an embodiment of a method for a data collector to collect wireless signal data from a V2X communication system.
9 and 10 are diagrams for explaining an embodiment of a user interface (UI) provided from a data collector.
11 is a block diagram illustrating an embodiment of a configuration of a data collector having a radio signal generation function.
12 is a block diagram showing an embodiment of the configuration of a server.
13 is a flowchart illustrating a V2X communication system event analysis method applied to the present invention.
14 is a block diagram for explaining an embodiment of a configuration of a client.
15 is a diagram illustrating an embodiment of a user interface (UI) provided for analysis of a V2X communication system event.
16 is a diagram for explaining an embodiment of a method of displaying an application result value in correspondence with a vehicle communication message.
17 is a block diagram illustrating the configuration of a V2X-applied autonomous cooperation road and a connected car test system according to an embodiment of the present invention.
FIG. 18 is a diagram of a real road experiment environment in which a V2X-applied autonomous cooperation road and a connected car test system according to an embodiment of the present invention are applied to a road with a center LDM and RES, and a vehicle system with an OBE.
19 is a diagram showing an indoor experiment environment using a V2X-applied autonomous cooperation road and a connected car test system according to an embodiment of the present invention.
20 is a diagram showing data flow.
21 is a diagram illustrating an example of information collected/recorded by a data collector.
22 and 23 are examples of a data format transmitted by a test object to a data collector (RSE Logger, HV Logger) in an embodiment of the present invention.
FIG. 24 is a diagram for explaining three modes of the comprehensive test server shown in FIG. 17.
25 is a flowchart illustrating a test method for a connected car and a V2X-applied autonomous cooperation road according to an embodiment of the present invention.
26 to 29 are examples of screens employed in the description of FIG. 25.

In the present invention, various modifications may be made and various embodiments may be provided, and specific embodiments will be illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to a specific embodiment, it is to be understood as including all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, in order to facilitate an overall understanding, the same reference numerals are used for the same elements in the drawings, and duplicate descriptions for the same elements are omitted.

1 is a block diagram showing the overall configuration of an analysis system applied to the present invention, and FIGS. 2 and 3 are diagrams for explaining an embodiment of the configuration of a V2X communication system.

The analysis system 100 performs an analysis method for testing the V2X communication system 10.

Referring to FIG. 1, the analysis system 100 may include a data collector 110, a server 120, and a client 130.

The data collector 110 serves to collect data on wireless signals transmitted or received from the V2X communication system 10, and the server 120 collects the wireless signal data collected from the data collector 110 to the client 130 It carries out the role of delivering.

Here, the V2X communication system 10 is attached to a vehicle and periodically transmits a packet message related to vehicle safety, and periodically receives a packet message from a V2X communication system (not shown) attached to another vehicle.

The packet message transmitted and received between the V2X communication systems includes vehicle ID information, location information, and status information (eg, driving direction and speed, deceleration and acceleration status, etc.), and may have a standardized message format. .

As described above, the V2X communication system 10 can know the distance between the vehicle to which it is attached and the surrounding vehicle and the operation state of the surrounding vehicle by using a packet message periodically received from the V2X communication system of another vehicle. You can judge dangerous situations.

Meanwhile, the V2X communication system 10 includes a hardware module and a software stack to which a technology according to the standard standard is applied so that packet messages can be transmitted and received within a short time between vehicles or between vehicles and infrastructure in a radio wave environment in which vehicles move at high speed. do.

For example, the WAVE communication technology standardized by the IEEE of the United States is a technology that can transmit and receive packet messages between vehicles or between vehicles and infrastructure within a short time of less than 100msec up to 1km in a radio wave environment in which vehicles move at high speed.

As shown in FIG. 2, the V2X communication system 10 to which the WAVE communication technology is applied may include a V2X communication module, a GPS module, a memory and a processor.

The processor provided in the V2X communication system 10 is a processor for driving a safety application, and may be interlocked with the vehicle internal network, and application result values such as various warnings can be transmitted to the driver display device. have.

In addition, the software stack of the WAVE communication system can be divided into kernel software and application service software. Here, the software on the kernel includes device driver, MAC transmission/reception function, routing function, IP packet function, WSMP safety message function, management function and authentication and security protocol function, and the application service software is vehicle safety service, cooperative autonomous driving service. And a driver interface.

More specifically, the software stack of the WAVE communication system is composed of a plurality of layers as shown in FIG. 3, and the plurality of layers are each designed to satisfy the function and performance of a specific communication standard.

Table 1 below shows information on a plurality of standards required to implement the WAVE communication technology.

STANDARD USAGE OSI LAYER IEEE 802.11
(IEEE 802.11P) WAVE PHY AND MAC 1 AND 2 IEEE 1609.0 ARCHITECTURE N/A IEEE 1609.2 SECURITY SERVICES FOR APPLICATIONS AND MANAGEMENT MESSAGES N/A IEEE 1609.3 NETWORKING SERVICES 2,3,AND 4 IEEE 1609.4 MULTI-CHANNEL OPERATION 2 IEEE 1609.11 OVER-THE-AIR ELECTRONIC PAYMENT DATA EXCHANGE PROTOCOL 7 IEEE 1609.12 IDENTIFIER ALLOCATIONS N/A SAE J2735 DSRC MESSAGE SET DICTIONARY 7 SAE J2945/1 ON-BOARD SYSTEM PERFORMANCE REQUIREMENTS FOR V2V COMMUNICATIONS N/A

3 and Table 1, the WAVE communication technology uses a dedicated frequency band of 5.9 GHz, and is designed to satisfy IEEE 802.11p and IEEE 1609.x standards.

IEEE 802.11p includes a physical (PHY) layer and a MAC layer for wireless transmission, and the IEEE 1609.x standard includes a multi-channel layer, a network layer, an authentication and security layer, and an application service layer mounted on top of IEEE 802.11p. .

The SAE J2735 standard includes a message layer and defines a set of Dedicated Short Range Communication (DSRC) messages transmitted and received between vehicles or between vehicles and infrastructure.

Meanwhile, the SAE J2735 standard includes a message layer, a safety application layer, and defines performance requirements and verification standards required for a service.

The V2X communication system 10 according to an embodiment of the present invention may include a V2X communication module configured to include a plurality of layers to satisfy the WAVE communication standards as described with reference to FIGS. 2 and 3 and Table 1. , The present invention is not limited thereto, and may be in accordance with other vehicle-to-vehicle communication standard standards.

In addition, as shown in Figure 1, the analysis system 100 may include a plurality of data collectors (110, 140), the plurality of data collectors (110, 140) is a plurality of V2X communication systems From (10, 11), the radio signal data as described above can be collected.

In this case, the server 120 may collect radio signal data for all V2X communication systems 10 and 11 by receiving the radio signal data collected by each from the plurality of data collectors 110 and 140, The number of data collectors 110 and 140 or V2X communication systems 10 and 11 for which wireless signal data is collected by the server 120 may be set to a value of 2 or more depending on the performance of the analysis system 110 .

Meanwhile, in the above, the present invention has been described by taking as an example that wireless signal data for a plurality of V2X communication systems 10 and 11 is collected by a plurality of data collectors 110 and 140, but the V2X communication systems 10 A number smaller than the number of, 11), for example, may be collected by one data collector 110.

According to an embodiment of the present invention, data from two or more layers among a plurality of layers constituting the communication module of the V2X communication system 10 are collected by the data collector 110 in the test process, and the server It is transmitted to the client 130 through 120 and the test result for the V2X communication system 10 is analyzed.

Meanwhile, data may be collected from a plurality of layers of the V2X communication system 10 in terms of a communication protocol as shown in FIG. 3, but the present invention is not limited thereto, and components constituting the V2X communication system 10 Data may be collected from multiple layers in perspective.

For example, data may be collected by the data collector 110 from each of the communication protocol stack constituting the V2X communication system 10, the V2X safety service middleware, the V2X safety service, the positioning algorithm, and the vehicle internal network.

Accordingly, the test for the V2X communication system 10 is easily and efficiently performed, and when a problem occurs in the test result, it is possible to accurately analyze at what level the cause of the problem occurs.

Hereinafter, embodiments of a vehicle-to-X communication system analysis method and system applied to the present invention will be described in more detail with reference to FIGS. 4 to 16.

4 is a flowchart illustrating an analysis method for testing a V2X communication system applied to the present invention, and the illustrated analysis method is combined with a block diagram showing the overall configuration of the analysis system applied to the present invention shown in FIG. Explain.

Referring to FIG. 4, the data collector 110 collects data on a wireless signal transmitted or received from the V2X communication system 10 from the V2X communication system 10 (step S300).

Here, the wireless signal data collected in step S300 is collected from a plurality of layers constituting the V2X communication system 10, and may include received signal information, vehicle communication message, logic data, and application result values. .

Preferably, at least two of the received signal information, vehicle communication message, logic data, and application result value may be collected from the V2X communication system 10 by the data collector 110.

The received signal information includes a received signal strength indicator (RSSI) and a channel busy ratio (CBR), which may be data collected from the physical/MAC layer of the V2X communication system 10.

Here, the data collected from the physical/MAC layer of the V2X communication system 10 is not limited to the received signal strength (RSSI) and channel congestion (CBR, Channel Busy Ratio), and SNR (Signal to Noise Ratio) including noise information. ) May further include signal-related information.

On the other hand, the vehicle communication message is a basic safety message (BSM, Basic Safety Message), driver information message (TIM, Traveler Information Message), roadside station warning received from one or more other V2X communication systems (not shown) to the V2X communication system 10 It includes (RSA, Roadside Alert) data, which may be data collected from the message layer of the V2X communication system 10.

The basic safety message (BSM) includes BSM data elements defined in SAE J2735 standard, for example, time (UTC time), position (Latitude, Longitude, Elevation), speed (Speed), direction (Heading), and brake. It may include data such as system status (traction, abs, scs, brakeBoost, auxBrakes) and vehicle size (Width, Length).

Here, the data collected from the message layer of the V2X communication system 10 is not limited to the above-described data, and further includes data related to surrounding vehicles such as path history and path prediction. can do.

The logic data is calculated in the V2X communication system 10 using vehicle communication messages received from one or more other V2X communication systems (not shown), and object classification (TC, Target Classification) defined in SAE J2945 standard, collision It may include time (TTC, Time-to-Collision), intersection time (TTI, Time-to-Intersection), and intersection distance (DTI, Distance to Intersection).

In addition, the application result value is determined by the V2X communication system 10 using the calculated logic data, and the forward collision warning (FCW) and emergency brake detection warning (EEBL) required by the SAE J2945 standard. Brake Lights), Blind Spot Warning (BSW), Lane Change Warning (LCW), and Intersection Movement Assist (IMA).

Here, the logic data and application result values may be collected from the safety application layer of the V2X communication system 10 by the data collector 110.

The server 120 transmits at least some of the wireless signal data collected from the V2X communication system 10 by the data collector 110 in the step S300 to the client 130 (step S310).

Thereafter, the client 130 analyzes the test result of the V2X communication system 10 using the wireless signal data transmitted from the server 120 (step S320).

For example, the client 130 performs a real-time tracking on the test result currently being performed using the wireless signal data transmitted from the server 120, or the wireless signal stored in the database 124 of the server 120 By receiving signal data, it is possible to perform performance analysis on a test result that has been performed.

Meanwhile, in the above, the functions and operations of the data collector 110, the server 120, and the client 130 constituting the analysis system 100 have been described with reference to FIGS. 1 to 4, but the present invention is limited thereto. No, two or more of the constituent elements may be merged into one constituent element, or some of functions and operations of the constituent elements may be performed by other constituent elements.

For example, in the above, an embodiment of the present invention has been described as the client 130 performing analysis on the test result using the wireless signal data transmitted from the server 120, but the client 130 At least some of the analysis steps may be performed by the server 120.

In addition, the data collector 110 may further collect location information of the vehicle to which the V2X communication system 10 is attached, and the collected location information is synchronized with the wireless signal data collected from the V2X communication system 10 to provide a server It may be delivered to the client 130 through 120.

In addition, the client 130 may extract some of the radio signal data transmitted from the server 120 and perform analysis, but the present invention is not limited thereto, and the server 120 is collected by the data collector 110. Among the wireless signal data, some data to be analyzed by the client 130 may be extracted and transmitted to the client 130.

Figure 5 is a block diagram showing an embodiment of the configuration of the data collector, the illustrated data collector 110 is configured including a core layer (Core layer, 111) and a plug-in layer (Plug-in layer, 112) Can be.

Referring to FIG. 5, the core layer 111 may include an input adapter and an output adapter for input/output of data, and a control adapter for a test control interface (TCI). The test control interface (TCI) may be a special protocol interlocked only with a specific V2X communication system, and may be a standardized protocol.

The data collector 110 is connected to the V2X communication system 10 and the positioning system in a wired or wireless communication method through the input adapter, and the data for wireless signals transmitted or received from the V2X communication system 10 and the corresponding vehicle Can collect location information of

The radio signal data and location information collected as described above may be synchronized with each other and temporarily stored in a database of the core layer 111, and the radio signal data and location information stored in the database are exported to a file through an output adapter. Or it may be transmitted to the server 120 and uploaded.

Meanwhile, test control interfaces (TCIs) including conditions for testing the V2X communication system 10 of the vehicle may be provided through the control adapter of the core layer 111.

In addition, in the core layer 111, an input management unit (source manager), an output management unit (sync. manager), a database manager (database manager), and a procedure management unit for managing and controlling the operations of the data collector 110 as described above. (flow manager), a configuration management unit (config. manager) and a control unit (status control) may be provided.

Referring to FIG. 6, the data collector 110 transmits positioning data collected from a positioning system through a source plug-in of a positioning device using a User Datagram Protocol (UDP) using an Ethernet communication method. ) Can be entered.

In addition, the data collector 110 may receive a V2X packet, which is wireless signal data collected from the V2X communication system 10 through the OBU source plug-in, through UDP using an Ethernet communication method.

The Ethernet communication method and the UDP protocol are examples of a communication method used by the data collector 110 to collect data, and the present invention is not limited thereto.

V2X packets and positioning data input through the OBU source plug-in and the positioning device source plug-in as described above are synchronized with each other by the data/procedure manager, and then through the upload sync plug-in. It may be transmitted to the server 120.

Here, the V2X packet and the positioning data may be uploaded to the server 120 by HTTPS using a Long Term Evolution (LTE) communication method, but the present invention is not limited thereto, and various wired/wireless communication methods such as WIFI Can be used.

In more detail, as shown in FIG. 7, location information (positioning data) and radio signal data (V2X packet) are temporarily stored in a database including a system timestamp for time synchronization, and then the server ( 120) can be uploaded.

Meanwhile, the V2X packet and positioning data may be output to a file through an export sync plug-in.

As described above, the data collector 110 configures a data input/output interface in the form of an expandable plug-in, and receives data from various vehicle sensors as well as a V2X communication system and a positioning system using communication methods such as Ethernet, USB, and CAN. It can collect and transmit data in various forms using communication methods such as 3G, 4G, Wifi, and file I/O.

8 is a timing diagram showing an embodiment of a method for the data collector 110 to collect radio signal data from the V2X communication system 10, which is the same as described with reference to FIGS. Description of this will be omitted below.

Referring to FIG. 8, the data collector 110 transmits a "PKT_SETUP" packet to the V2X communication system 10 to set a parameter for testing the V2X communication system 10.

To this end, the data collector 110 may first receive communication parameters for performing the test through a user interface (UI) provided as shown in the screen shown in FIG. 9. Here, the screen shown in FIG. 9 may be displayed by the client 130, or may be displayed by the data collector 110 itself when a display module is provided in the data collector 110.

Specifically, the "Logger UI" provided from the data collector 110 includes a first area 810 for displaying information on a location where the test was performed on a map, and V2X/GPS collected from the V2X communication system 10 Set parameters for performing a radio signal performance test, along with a second area 820 for indicating packet, location information (latitude, longitude, altitude) and received signal strength (RSSI), and connection and status of each plug-in It may include a third area 830 for checking.

Through the third area 830, a test ID (TID) to identify the test, a vehicle ID (VEHICLE ID) to identify a vehicle, and a device ID (DEVICE ID) to identify the V2X communication system to be tested. Is given, and a radio signal to be tested can be selected.

In addition, the user activates the transmit/receive mode (TX MODE, RX MODE) for each radio signal (RADIO A, RADIO B), sets the channel (CHAN), or sets the transmit/receive antenna (TX ANT, RX ANT), Transmission/reception control (TX CTRL) can be set, or packet transmission rate (RATE), length (LEN), and interval (INTERVAL) can be set.

And in the lower part of the third area 830, the connection to the outside through input/output plug-ins of the data collector 110 as described above can be set and controlled, respectively, and the connection status and information transmission of each plug-in The status can be checked.

The “PKT_SETUP” packet transmitted from the data collector 110 to the V2X communication system 10 includes parameters set through the third area 830 of the “Logger UI” as described with reference to FIG. 9. It may be delivered to the V2X communication system 10 together with the "VPCONF" packet.

Thereafter, the data collector 110 transmits a "PKT_STAT" packet to the V2X communication system 10 to request (REQUEST) confirmation of the operation state (normal operation) of the V2X communication system 10, and the V2X communication system (10) may transmit a packet (VPSTAT) including information on its own operation state (normal operation) to the data collector 110.

The operation status confirmation request from the data collector 110 to the V2X communication system 10 and a response of operation status information from the V2X communication system 10 to the data collector 110 may be periodically performed.

Thereafter, when the data collector 110 transmits a "PKT_START" packet to notify the start of data collection to the V2X communication system 10, packet data (PKT_TX, PKT_RX) and GPS packets transmitted and received by the V2X communication system 10 The data PKT_GPS may be transmitted to the data collector 110 to start collecting.

In addition, when the data collector 110 transmits a "PKT_STOP" packet for notifying the end of data collection to the V2X communication system 10, data transmission from the V2X communication system 10 to the data collector 110 may be terminated.

In addition, as in the “Logger UI” shown in FIG. 10, the V2X communication system 10 may operate according to a predefined operation method without parameter setting. In this case, the V2X communication system 10 may transmit packet data for each layer to the data collector 110 without receiving commands of “PKT_SETUP”, “PKT_START”, and “PKT_STOP”.

According to another embodiment of the present invention, the data collector 110 further includes a function of generating a radio signal to be used for testing the V2X communication system 10, and the V2X communication system 10 from the data collector 110 ), it is possible to easily perform a test for a high-risk or repetitive situation by a radio signal transmitted to it.

11 is a block diagram for explaining an embodiment of the configuration of a data collector having a wireless signal generation function, the illustrated data collector may be implemented in the form of a test box 150 including a V2X communication module 151 have.

Referring to FIG. 11, the test box 150 may include a V2X communication module 151, a GPS module 152, a wireless communication module 153, and a plurality of antennas for transmitting and receiving wireless signals.

The V2X communication module 151 is configured to include a plurality of layers according to the vehicle communication standard standards as described above, and may generate a radio signal including a packet message for vehicle communication and transmit it through an antenna.

Since the configuration and operation of the V2X communication module 151 may be the same as the configuration of the V2X communication system 10 as described above, a detailed description thereof will be omitted.

The wireless signal generated by the V2X communication module 151 is generated to be used for repetitive tests according to vehicle communication standard standards (eg, IEEE 802.11p, IEEE 1609.x, and SAE J2735). May contain a packet message of.

Meanwhile, the GPS module 152 may generate a GPS signal including virtual vehicle location information and transmit it through an antenna.

The wireless signal generated by the V2X communication module 151 and the GPS signal generated by the GPS module 152 may be received by surrounding V2X communication systems including the V2X communication system 10.

In this case, the data on the wireless signal and the GPS signal received from the V2X communication system 10 may be collected into the test box 150 through the input interface 154 using a communication method such as Ethernet, CAN, and USB. have.

The wireless signal and GPS signal data collected by the test box 150 are stored in the database 155 and may be uploaded to the server 120 through the wireless communication module 153 using a communication method such as LTE or WIFI. .

In addition, through the sensor interface 156 provided in the test box 150, various sensing data may be additionally collected from an external environment.

12 is a block diagram showing an embodiment of the configuration of a server, and the server 120 includes a database 124, a management module 121, a data receiving unit 122, and an output data generating unit 123. Can be configured.

Referring to FIG. 12, wireless signal data collected by the data collector 110 and uploaded to the server 120 may be stored in the database 124.

The management module 121 is an authentication management unit (Auth. manager) for managing user authentication, etc., a data management unit for creating a space to store new test data and assigning an ID (TEST ID) for identifying the corresponding test. manage), a rule manager that manages an analysis rule for extracting data of interest, and a report manager that organizes and provides a report of data for a plurality of tests. have.

Meanwhile, the data receiving unit 122 includes a decompressor, an authenticator, a validator, a filter, and a field mapper, and controls the management module 121 Data can be collected accordingly.

The output data generation unit 123 includes a query receiving unit for receiving the data collected through the data receiving unit 122 and an output data configuration unit configured in an output data format for transmitting the input data to the client 130 can do.

The server 120 first generates a test ID (TEST ID) for identifying the corresponding test through the management module 121, and uploads the data collected by the data collector 110 through the data receiving unit 122 to the client ( 130) can be configured.

For example, the decompression unit of the data receiving unit 122 selectively decompresses raw data collected by the data collector 110, the authentication unit authenticates the user, and the inspection unit You can check the value range and test ID of the raw data.

Thereafter, after the invalid data is filtered by the filter, the field mapping unit may optimize the data field and reconstruct the data structure using a test ID and a vehicle ID.

The data output from the field mapping unit may be composed of basic data to be transmitted to the client 130 by the output data generation unit 123.

Meanwhile, the basic data configured as described above may be classified for each test ID and stored in the database 124.

The client 130 may analyze a test result for the V2X communication system 10 using basic data transmitted from the server 120.

According to an embodiment of the present invention, by displaying vehicle communication messages transmitted/received between vehicles and application result values determined based on them in correspondence with each other over time, application-related tests performed in the V2X communication system are easily performed. can do.

Here, the event to be analyzed may include a communication message transmitted and received between vehicles as described above, and an application result value determined according to the communication message between vehicles.

Hereinafter, a method of analyzing an event of a V2X communication system applied to the present invention and embodiments of the system will be described in more detail with reference to FIGS. 13 to 16.

13 is a flowchart illustrating a V2X communication system event analysis method applied to the present invention, in which wireless signal data collected by the data collector 110 of the analysis system 100 is transferred to the client 130 through the server 120. It shows how to analyze the events of the V2X communication system that are delivered.

Referring to FIG. 13, the client 130 collects data on wireless signals transmitted or received from a first V2X communication system provided in a first vehicle and a second V2X communication system provided in a second vehicle (S1100). step).

Here, the first vehicle is a host vehicle (HV), the second vehicle is a remote vehicle (RV) around the host vehicle (HV), and the remote vehicle (RV, remote vehicle) may be 2 or more. .

For data collection in the step S1100, the server 120 may search the database for data corresponding to the test ID (TEST ID) selected by the user and transmit it to the client 130, and the client 130 communicates with V2X. The vehicle positioning data synchronized using the system timestamp together with the wireless signal data of the system may be received from the server 120.

In the step S1100, the method of obtaining the wireless signal data and vehicle positioning data of the V2X communication systems provided in the plurality of vehicles by the client 130 by the data collector 110 as described with reference to FIGS. 1 to 12 Wireless signal data and positioning data are collected from the V2X communication system and positioning system provided in the vehicle, and the collected data may be transmitted to the client 130 through the server 120.

Here, the data collector 110 may collect radio signal data from a plurality of layers constituting the V2X communication system.

Thereafter, the client 130 obtains information on the vehicle communication message transmitted by the second V2X communication system using the wireless signal data collected in step S1100 (step S1110), and the second V2X communication system transmits Information on the application result determined in the first V2X communication system is obtained based on one vehicle communication message (step S1120).

For example, the information on the vehicle communication message obtained in step S1110 may be information collected from the second V2X communication system provided in the second vehicle, and the time, position, speed, direction, brake system state and vehicle size It may contain basic safety message (BSM) data indicating, etc.

The client 130 uses the wireless signal data collected from the first V2X communication system provided in the first vehicle to transmit the vehicle communication message transmitted from the second V2X communication system provided in the second vehicle to the first V2X communication system. It may be additionally determined whether or not this has been received.

On the other hand, the information on the application result value obtained in step S1120 may be information collected from the first V2X communication system provided in the first vehicle, and a forward crash warning (FCW), an emergency brake detection warning ( EEBL, Emergency Electronic Brake Lights), Blind Spot Warning (BSW), Lane Change Warning (LCW), and Intersection Movement Assist (IMA).

According to the obtained information, the client 130 processes the vehicle communication message transmitted from the second V2X communication system and the application result value determined in the first V2X communication system to be displayed in correspondence with each other (step S1130).

For example, the client 130 may synchronize and display a change in an application result value and a vehicle communication message over time.

14 is a block diagram illustrating an embodiment of the configuration of a client, and the client 130 includes a database 131, a data acquisition unit 132, a preprocessor 133, and a playback unit 134. It can be configured to include. A description of the same operation of the client 130 illustrated in FIG. 14 as described with reference to FIGS. 1 to 13 will be omitted below.

Referring to FIG. 14, data received from the server 120 through the data acquisition unit 132 of the client 130 may be stored in the database 131.

To this end, the data acquisition unit 132 uses a decompression unit to selectively decompress data received from the server 120, an authentication unit to perform user authentication, and a test ID (TEST ID). It may include a query generator for querying data.

The preprocessor 133 applies filtering such as a time filter, a space filter, and a metric filter to the data received from the server 120 through the data acquisition unit 132 Thus, it is possible to extract data on the section of interest to be analyzed.

For example, when a section of interest is set in the time domain, a time filter is applied to data received from the server 120 to extract data corresponding to a specific time section, and when the section of interest is set in the spatial domain Data corresponding to a specific location area may be extracted by applying a space filter to the data received from the server 120.

In addition, when an interest section is set based on a performance index indicating a motion characteristic or a signal characteristic of a signal transmitting/receiving vehicle, a metric filter is applied to the data received from the server 120 to correspond to a specific performance condition. Data can be extracted.

The HV tracking unit of the reproducing unit 134 may obtain radio signal data for the first vehicle, which is the host vehicle HV, and logic data corresponding thereto to configure a movement path of the first vehicle.

In addition, the RV tracking unit may obtain radio signal data for a second vehicle, which is a remote vehicle RV, and logic data corresponding thereto to configure a moving path of the second vehicle.

In addition, the route estimation unit uses the basic safety message (BSM) data received from the V2X communication system of the second vehicle, the remote vehicle RV, by the V2X communication system of the first vehicle as the host vehicle (HV), It is possible to configure a moving route, etc.

Meanwhile, the visualization unit performs a role of processing so that changes in the application result value and the vehicle communication message over time are displayed in synchronization with each other.

The application result value and the change in the vehicle communication message processed as described above may be displayed on the screen through a display module (not shown) provided or connected to the client 130.

In the analysis system 100, when an analysis menu for analyzing an event of the V2X communication system is selected and a test ID to be analyzed is selected, a user interface (UI) as shown in FIG. 15 is displayed. It may be displayed on the screen of the client 130.

Referring to FIG. 15, a screen for event analysis includes a map area 1310, a vehicle information area 1320, an event display area 1330, a detailed information area 1340, and a graph display area 1350. Can be.

In the map area 1410, a map image indicating the location of each vehicle at a current point in time may be displayed along with a moving route of the vehicles participating in the test.

The map image is automatically scrolled to display the movement path and current location of all vehicles, and the enlargement/reduction ratio can be changed.

In the vehicle information area 1320, information on vehicles participating in the test may be displayed, and any one of the vehicles V01 and V02 may be set as the host vehicle HV.

On the other hand, in the event display area 1330, vehicle communication messages transmitted by each vehicle (V01, V02) are continuously displayed over time, and a vehicle set as the host vehicle (HV) (for example, V02) An application result determined based on the vehicle communication message received from the remote vehicle RV may be displayed.

In addition, when the user selects a specific application result value displayed on the event display area 1330, information on logic data used to determine the corresponding application result value may be displayed in the detailed information area 1340.

Here, the logic data is calculated using a vehicle communication message received from a remote vehicle (RV), object classification (TC, Target Classification), collision time (TTC, Time-to-Collision), crossover time (TTI, Time -to-Intersection) and distance to intersection (DTI).

In the graph display area 1350, a graph image showing changes in the speed of each of the vehicles V01 and V02 and the distance from the host vehicle HV of the remote vehicle RV is displayed, but is not limited thereto. A graph image indicating a change in communication performance over time, such as a vehicle packet transfer rate (PDR), a received signal strength (RSSI), and a GPS error, may be displayed.

16 is a diagram for explaining an embodiment of a method of displaying an application result value and a vehicle communication message in correspondence with each other. In the event display area 1330, a change in the application result value and the vehicle communication message over time It shows how to display in synchronization with each other.

Referring to FIG. 16, an application result value 1400 determined by the host vehicle HV may be displayed at a location corresponding to a corresponding time point.

In addition, vehicle communication messages 1410 and 1420 transmitted by each of the vehicles V01 and V02 participating in the test may be sequentially displayed from left to right as time passes.

Here, the application result value of the host vehicle HV may be determined based on the vehicle communication message 1410 transmitted by the remote vehicle RV before the corresponding time point.

On the other hand, some of the vehicle communication messages transmitted by the remote vehicle (RV) may not be received by the host vehicle (HV), and the vehicle communication message may be displayed to be distinguished from the normally received vehicle communication message using color. have.

In the example shown in FIG. 16, it can be seen that the vehicle communication message 1421 transmitted by the remote vehicle RV around 20:02:24 has not been received by the host vehicle HV.

While the event analysis result for the V2X communication system is being played, the block-type application result values and vehicle communication messages as shown in FIG. 16 move from left to right as time passes, and the new application result value is on the far right. And vehicle communication messages are displayed.

In the above, a vehicle-to-X communication system analysis method and system according to an embodiment of the present invention has been described by taking the North American Vehicle Communication Standard (WAVE) as an example, but the present invention is not limited thereto.

For example, the vehicle-to-X communication system analysis method and system applied to the present invention can be applied to various vehicle communication standards such as Europe or Japan.

17 is a block diagram illustrating the configuration of a V2X-applied autonomous cooperation road and a connected car test system according to an embodiment of the present invention.

In FIG. 17, the traffic information center, traffic information for mobile operators, and the meteorological agency may be collectively referred to as external systems. to provide.

The center LDM 400, RSE 401, OBE 402, and vehicle gateway 403 may be collectively referred to as an autonomous cooperative driving system (test subject).

The center LDM (Local Dynamic Map) 400 can be referred to as a dynamic information system. Conceptual information classified according to the change time of information on the road traffic system for the function of collecting/storing/managing/providing spatial information on road traffic. Have a management system in place. In general, layers 1 to 4 are defined, and layer 1 refers to fixed information such as map information, and layer 4 refers to update data in seconds such as vehicle movement. In other words, the center LDM 400 is embedded in the ITS station, and it can be said to be a conceptual data storage including topographic and locational status information related to the ITS station within the geographical area around the host station.

In FIG. 17, the center LDM 400 receives traffic information, unexpected information, vehicle operation information, and weather information, and can output dynamic information messages for each road, and receive dynamic vehicle information and road information from the RSE 401. Can receive.

Roadside equipment (RSE) 401 may be referred to as a roadside base station device, and is a communication infrastructure device capable of providing information by using V2X communication installed around a road. In other words, the RSE 401 may be referred to as a roadside device located along a road transport network for the purpose of data exchange and communication with a vehicle-mounted device.

In FIG. 17, the RSE 401 may receive a dynamic information message and a vehicle operation message, and may output a V2X message including information such as road/signal/explosion. Meanwhile, the RSE 401 may transmit vehicle dynamic information collected from the OBE 402 and the dynamic information generated by the RSE 401 to the center LDM 400.

OBE (Onboard equipment) 402 may be referred to as an in-vehicle communication terminal, and is a device capable of transmitting information using V2X communication installed in a vehicle. In other words, the OBE 402 can be said to be a communication device that is installed in a vehicle and enables wireless communication to exchange information between interfaces of sub-devices.

In FIG. 17, the OBE 402 may receive a V2X message including information such as road/signal/explosion from the RSE 401 and may display an HMI. In addition, the OBE 402 may output a V2X message including dynamic information of the vehicle.

The vehicle gateway 403 is a device that receives a message from the OBE 402 of the vehicle and transmits data to another system in the vehicle.

In FIG. 17, the vehicle gateway 403 may process/transmit the V2X information received from the OBE 402 into the vehicle, and transmit information received from the vehicle internal system to the vehicle interior and exterior systems.

The V2X-applied autonomous cooperation road and connected car test system 300 according to an embodiment of the present invention include a data collector 310, a wireless packet sniffer 320, a comprehensive test server 330, an analysis client 340, and It includes a virtual information generator 350.

The data collector 310 collects information from the center LDM 400, RSE 401, OBE 402, and vehicle gateway 403 and provides the information to the comprehensive test server 330.

The data collector 310 includes a time synchronization function, and may provide the collected information to the comprehensive test server 330 including collection time and collection location information.

The wireless packet sniffer 320 may collect packets transmitted in a wireless communication channel transmitted by the RSE 401 and the OBE 402 and provide the collected packets to the comprehensive test server 330.

If necessary, the above-described data collector 310 and wireless packet sniffer 320 may be collectively referred to as an information collector.

The comprehensive test server 330 collects and processes V2X communication data and vehicle data transmitted from the data collector 310 and the wireless packet sniffer 320.

In particular, the comprehensive test server 330 may generate test rules through the test rule editing screen of the analysis client 340, and perform test scenario generation through the scenario edit screen of the analysis client 340. I can. The comprehensive test server 330 performs a test based on the data from the data collector 310 and the wireless packet sniffer 320 according to the selected test scenario, and analyzes the test result as the test is finished, so that the test object Outputs the performance evaluation result information.

Meanwhile, in the case of the performance evaluation mode using the emulator, the comprehensive test server 330 may generate a V2X message suitable for each test rule according to a test scenario created in advance.

The analysis client 340 provides a UI for generating test rules and test scenarios for the V2X comprehensive test, managing logs, and performing analysis.

The virtual information generator (GPS/CAN signal emulator) 350 may provide virtual signals and information necessary for the test to the system under test. As an example, a GPS signal and a vehicle CAN signal are transmitted through the virtual information generator 350 for an OBE test in a place where there is no vehicle signal and GPS signal indoors, and the test object OBE receives this information and functions for the test. Perform the action.

The V2X-applied autonomous cooperation road and connected car test system of the present invention configured as described above provides unexpected situation (work section) information to an autonomous vehicle, and tests for a service in which the autonomous vehicle avoids the corresponding section. can do. For example, first, you can test information processing (collection/storage/management/providing) functions. Specifically, when information on an unexpected situation on a virtual road is input to the center LDM 400, the center LDM 400 can check whether the internal dynamic information is generated in the internal DB based on the input information. When the emergency situation information on the virtual road is input into the center LDM 400, the center LDM 400 can check whether the corresponding data has been deleted from the internal DM after the expiration time of the corresponding information. When the emergency situation information on the virtual road is input to the center LDM 400, it is possible to check whether the center LDM 400 has transmitted necessary information to the RSE 401 in the relevant region based on the corresponding information. By inputting information on an emergency situation on a virtual road into the center LDM 400, it is possible to check the accuracy of the information transmitted from the center LDM 400 to the RSE 401.

Also, secondly, you can test the performance of information processing (collection/storage/management/provision). Specifically, the time required for providing information to the RSE 401 and outputting a message to provide information to the OBE 402, a number of OBE data are transferred to the RSE 401, and the RSE 401 transmits the data. You can measure the time it takes to process the information.

In addition, thirdly, it is possible to test the function/performance of the unexpected situation (work section) information provision service. Specifically, when transmitting unexpected situation information on the road through the center LDM (400) -> RSE (401), whether or not the vehicle passing there recognized the unexpected situation, the recognition information is output to the HMI to accurately guide the driver. It is possible to check whether or not, and whether the autonomous vehicle has successfully performed lane change to avoid the construction section after recognition.

FIG. 18 is a diagram of a real road experiment environment in which a V2X-applied autonomous cooperation road and a connected car test system according to an embodiment of the present invention are applied to a road with a center LDM and RES, and a vehicle system with an OBE.

In FIG. 18, the center LDM 400 puts road weather and unexpected information necessary for the operation of a general vehicle or an autonomous vehicle in an RSA/TIM message and transmits it to the RSE 401 in a corresponding region. Here, the RSA (RoadSide Alert)/TIM (Traveler Information Message) message means a message used for conveying road construction and unexpected road situations through V2X communication. Of course, the center LDM 400 may directly transmit an RSA/TIM message to the vehicle OBE 402 using a mobile communication network. At this time, the data collector 310 collects the message transmitted from the center LDM 400 and transmits it to the comprehensive test server 330.

In FIG. 18, the RSE 401 receiving the RSA/TIM message from the center LDM 400 transmits the message to a vehicle moving in a corresponding area using V2X communication. At this time, the data collector 310 collects the message received by the RSE 401 from the center LDM 400 and the message transmitted through V2X communication and transmits it to the comprehensive test server 330.

In FIG. 18, the vehicle OBE 402 receives an RSA/TIM message through the center LDM 400 or the RSE 401 using V2X communication. In addition, the vehicle OBE 402 transmits road weather and unexpected information included in the message in the vehicle to a system required for autonomous driving or a driver display system. At this time, the data collector (HV Logger) 310 collects and transmits the messages transmitted and received by the OBE 402 and the vehicle gateway 403 to the comprehensive test server 330. Here, HV (Host Vehicle) refers to a vehicle that receives a V2X/C-ITS communication message.

19 is a diagram showing an indoor experiment environment using a V2X-applied autonomous cooperation road and a connected car test system according to an embodiment of the present invention.

When the test object (DUT, Device Under Test) center LDM (400), RSE (401), OBE (402), and vehicle gateway 402 cannot be tested on an outdoor road site, V2X-based according to an embodiment of the present invention The autonomous cooperation road test system 300 may perform a test indoors by using the function of the virtual information generator 350.

In FIG. 19, the comprehensive test server 330 transmits an RSA/TIM message to the RSE 401 on behalf of the center LDM 400. Accordingly, the RSE 401, which received the RSA/TIM message, transmits the RSA/TIM message to the vehicle moving in the corresponding area using V2X communication.

At this time, the virtual information generator 350 generates GPS signal information and CAN signal information necessary for the operation of the OBE 402 and the vehicle gateway 403 and transmits the generated information to the OBE 402 and the vehicle gateway 403.

Accordingly, the vehicle OBE 402 receives an RSA/TIM message using V2X communication. In addition, the vehicle OBE 402 transmits road weather and unexpected information included in the message in the vehicle to a system required for autonomous driving or a driver display system. At this time, the data collector (HV Logger) 310 collects and transmits the messages transmitted and received by the OBE 402 and the vehicle gateway 403 to the comprehensive test server 330.

FIG. 20 shows the flow of RSA/TIM messages generated in the center LDM and transmitted to the RSE, OBE, and vehicle gateway, and FIG. 21 is a data collector to transmit and receive RSA/TIM messages from test objects (RSE, OBE, vehicle gateway). A diagram showing an example of information collected/recorded by a data collector when recording information.

The information generated by the LDM center is delivered to multiple RSEs, and each region's RSE is transmitted through a wireless channel, and the OBE receives it through a wireless channel and delivers the received information to other systems in the vehicle through the in-vehicle network. At this time, the data collector and the wireless packet sniffer of the system 300 of the present invention collect information received by the RSE from the center LDM and information transmitted by the RSE through a wireless channel. In addition, the system of the present invention installed in the vehicle logs information received by the OBE wirelessly and information transmitted to the vehicle internal network. At this time, the data collector (RSE Logger, HV Logger) and the wireless packet sniffer transmit the information collected from the test object to the comprehensive test server.

In addition, when the data collector records RSA/TIM message transmission/reception information from the test object (RSE, /OBE, vehicle gateway), the information collected/recorded by the data collector may be as shown in FIG. 21.

22 and 23 are examples of a data format transmitted by a test object to a data collector (RSE Logger, HV Logger) in the embodiment of the present invention, and are applied to an indoor experimental environment as shown in FIG. 19. 22 and 23 are examples in which the center LDM, RSE, OBE, and vehicle gateway transmit processing results of messages transmitted and received using V2X communication to a data collector through Ethernet communication.

FIG. 24 is a diagram for explaining three modes of the comprehensive test server shown in FIG. 17.

The comprehensive test server 330 has three modes.

The first mode is the "Emulator usage performance evaluation" mode. In this mode, the comprehensive test server 330 generates a test message on behalf of the center LDM 400. In addition, the comprehensive test server 330 collects information transmitted and received by the RSE 401, OBE 402, and vehicle gateway 403, and generates and transmits a test message according to a defined test scenario. At this time, the performance evaluation provides an analysis function according to the test scenario defined based on the information collected from each equipment.

The second mode is the "Center LDM Usage Performance Evaluation" mode. In this mode, the comprehensive test server 330 collects messages generated and transmitted by the center LDM 400, information transmitted and received by the RSE 401 and the OBE 402 and the vehicle gateway 403, and is used in a defined test scenario. Provide analysis function according to.

The third mode is “analysis mode”. This mode provides functions to load, analyze, delete, and modify collected test data and previously collected test scenario data.

In addition, the comprehensive test server 330 may generate test rules through the test rule editing screen, create test scenarios through the scenario editing screen, and analyze test results through the analysis screen. can do.

Meanwhile, in the case of the performance evaluation mode using the emulator, the comprehensive test server 330 may generate a V2X message suitable for each test rule according to a test scenario created in advance.

In addition, the data collector connected to the RSE can collect each RSE transmission/reception V2X message and transmit the collected information to the comprehensive test server, and the data collector installed in the test vehicle collects the in-vehicle OBE, the transmission/reception of the vehicle gateway, and the comprehensive test server. The collected information can be delivered to.

When the UI function tree of the analysis client 340 is illustrated as an example, it can be expressed as shown in FIG. 24.

25 is a flowchart illustrating a V2X-applied autonomous cooperation road and a connected car test method according to an embodiment of the present invention, and FIGS. 26 to 29 are screen examples employed in the description of FIG. 25.

The data collector 310 collects data generated and collected by the RSE 401 and OBE 402 on the data generated and collected by the center LDM 400, and the data generated and collected by the vehicle gateway 403 do. Then, the wireless packet sniffer 320 collects packets transmitted in the wireless communication channel transmitted by the RSE 401 and the OBE 402 (S10). More specifically, the data collector 310 collects information from the center LDM 400, the RSE 401, the OBE 402, and the vehicle gateway 403 and provides the information to the comprehensive test server 330. Then, the wireless packet sniffer 320 collects packets transmitted in the wireless communication channel transmitted by the RSE 401 and the OBE 402, and provides the collected packets to the comprehensive test server 330.

Thereafter, the comprehensive test server 330 first generates a test rule and a test scenario in order to perform and analyze various tests based on the data from the data collector 310 and the wireless packet sniffer 320 (S20). ). At this time, the comprehensive test server 330 uses the initial screen of the analysis client 340 to generate test rules and test scenarios. 26 illustrates an initial screen of the analysis client 340. The initial screen of the analysis client 340 illustrated in FIG. 26 is a screen showing data of test rules, test scenarios, and test execution status recorded in the comprehensive test server 330. The initial screen 3001 includes an icon to move directly to the screen (3002), a test rule and test scenario usage number status area (3003), a log collection status graph by test date (3004), a test rule and test scenario status display area (3005), and test. A scenario information display and test control area 3060, and a test rule information display area 3070 are included. The screen-directly moving icon 3002 is a moving icon for each screen, and makes it possible to move to screens such as an initial screen, a test rule edit screen, a test scenario edit screen, a performance evaluation screen, and a setting. The test rule and test scenario usage numerical status area 3003 is a screen area indicating the total number of tests performed, the number of defined test scenarios and test rules, and the number of test rules used in the test. The log collection status graph 3004 by test date is a screen area that shows test status statistics information, and the upper test rule used a lot as an x-axis is displayed, and the number of successes/failures/total executions for each test rule is indicated by the Y-axis. . The test rule and test scenario status display area 3005 is a screen area that displays test (test scenario) and test rule information on the GIS. When the table row on the screen areas 3060, 3070 is clicked, the corresponding test scenario is executed on the GIS. Displays information such as the location and conditions of the rules. The test scenario information display and test control area 3060 represents a screen area including a test scenario creation, deletion, and modification screen entry, the above-described emulator use performance evaluation mode, center LDM use performance evaluation mode start, and analysis mode entry. In FIG. 26, reference numeral 3061 denotes a table representing a list of currently generated test scenarios, a scenario ID (TID), a description of the scenario, a list of test rules used in the scenario, and a test execution date (Day ), test start time, end time, edit button, and delete button. When a specific scenario is selected from the list of the test scenario list table 3061, the region where the test using the test scenario is performed/to be performed and test rule information are displayed in the form of a map in the test rule and test scenario status display area 3005. . Meanwhile, when a specific scenario is double-clicked (selected) in the test scenario list table 3061, the screen enters the analysis mode screen of the selected test scenario. In FIG. 26, clicking the button 3062 enters a new test scenario creation screen, and clicking the button 3063 enters a screen where the test log can be uploaded to the comprehensive test server. In FIG. 26, when the button 3064 is clicked, the mode is switched to the emulator usage performance evaluation mode to start the test, and when the button 3065 is clicked, the analysis mode for the test scenario of the item selected from the test scenario list table 3061 Enter the screen.

Meanwhile, when moving to the test rule editing screen by manipulating the screen shortcut icon 3002, the test rule editing screen as illustrated in FIG. 27 is displayed on the analysis client 340.

In Fig. 27, reference numeral 3101 denotes a test rule editing screen. Reference numeral 3102 is a screen area for outputting all test rule information, and outputs an image of scenario information related to the test rule to be executed. Reference numeral 3103 is a test rule setting screen area, where information related to test rule setting can be entered, and RID, DESCRIPTION, EVENT POSTION, TRIGGERING RANGE, and MESSAGE information can be set and modified. Reference numeral 3104 is an RID screen area, and an ID (eg, RULE #1) for each test rule may be input. Reference numeral 3105 is an area of the DESCRIPTION screen, and detailed information (eg, EEBL) for the corresponding test rule can be entered. Reference numeral 3106 denotes an EVENT POSITION screen area, and GIS coordinate information for an event occurrence location may be input. Reference numeral 3107 denotes a TRIGGERING RANGE screen area, and distance information for generating or recognizing an event occurrence message from an event occurrence location may be input. Reference numeral 3108 is a screen area for MESSAGE editing and confirmation, which shows the message selection and editing screen for testing the test rule, and can be added as needed with the edit and save button. Reference numeral 3109 denotes a MESSAGE editing screen area, and a message selected in the screen area 3108 may be modified and edited (eg, time, location, etc. may be modified and edited). Reference numeral 3110 is a screen area for displaying Rule information GIS, and outputs rule information that has been edited and corrected on the GIS screen. In addition, in the screen area 3110, the radius from the event location is made to be circular based on the value input to TRIGGERING. Reference numeral 3011 is an area of the measurement reference information input screen, and shows information on message transmission/reception delay and distance reference from each device.

On the other hand, when moving to the test scenario editing screen by manipulating the screen shortcut icon 3002, the test scenario editing screen as illustrated in FIG. 28 is displayed on the analysis client 340. In Fig. 28, reference numeral 3201 is a test scenario editing screen. Reference numeral 3202 is an area of the GIS display screen for test rule information included in the test scenario, and the information of the test rule selected as the current test scenario being edited among applicable test rules is displayed on the GIS screen. Reference numeral 3203 denotes a scenario ID screen area. The set scenario ID is used as a separator to distinguish each scenario. Reference numeral 3204 is a DESCRIPTION screen area, and detailed information about the test rule (eg, RoadWorks alarm test at the Mars test site on March 7th) can be entered. Reference numeral 3205 denotes a Finalized Time screen area. When the Finzalize button 3206 is activated, data is not collected by the scenario ID after the activation point. Activated when no further tests are performed with the selected scenario ID. Reference numeral 3207 is an area indicating a list of test rules applied to perform the current test. Reference numeral 3208 is a screen area that displays a list of test rules that can be selected when performing a test of the current test scenario. When selected from the list, the selected test rule is displayed in the selected test rule display area 3207. Reference numeral 3209 is a button for closing the current test scenario editing window. Reference numeral 3210 is a button for updating the currently edited test scenario.

In this way, the comprehensive test server 330 performs a test according to the selected test scenario (S30).

Thereafter, as the test is finished, the comprehensive test server 330 analyzes the test result and outputs performance evaluation result information for the corresponding test object (S40). In this case, the output performance evaluation result information may be output in the form of a screen as illustrated in FIG. 29. The performance evaluation screen of FIG. 29 may be displayed through the analysis client 340. In FIG. 29, reference numeral 3301 is a performance evaluation screen, which is a screen for expressing and monitoring test information for each test rule. Reference numeral 3302 is a GIS screen area, which outputs location information of each equipment and test vehicle, and outputs event location and trigger range information. Reference numeral 3303 denotes a test rule description screen area and outputs a description image of a test rule test currently being performed. Reference numeral 3304 is a screen area for outputting evaluation index and measurement information for test rules, and outputs delay information for each device, evaluation index for distance information from the vehicle, and measurement information. Reference numeral 3305 denotes a screen area for outputting test scenario information to be performed, and outputs information on a corresponding test, and may change a test rule and change a section (time) in connection with the screen area 3306. Reference numeral 3306 denotes a screen area that can output rule information that is being performed in the currently performed test scenario, and sequentially indicates the rules of the currently performed test, and automatically recognizes and lists up or outputs information that has been previously performed. . Reference numeral 3307 denotes a screen area in which a message used in a currently performed test can be checked. Reference numeral 3308 denotes a screen area of the test reproduction function, and has a reproduction function in the case of a previously performed test. Reference numeral 3309 denotes a screen area for outputting timing information of messages transmitted and received from each monitoring target device in a test. The horizontal axis represents the passage of time, and messages transmitted and received by each test object (DUT) along each line of the center LDM, RSE, and OBE are displayed according to the corresponding time. Reference numerals 3310 to 3313 are graphs, showing RSSI information for RF communication equipment, PER information for RF communication equipment, Rx/Tx delay for each equipment, and speed of test vehicle, vertical/horizontal decay/acceleration, etc. Reference numeral 3314 visualizes the transmission/reception time of a corresponding message from the center LDM to the RSE, OBE, and vehicle gateway when a specific message is double-clicked on the message timing information screen 3309.

As described above, an optimal embodiment has been disclosed in the drawings and specifications. Although specific terms have been used herein, these are only used for the purpose of describing the present invention, and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical scope of the present invention should be determined by the technical spirit of the appended claims.

300: V2X applied autonomous cooperation road and connected car test system
310: data collector
320: wireless packet sniffer
330: comprehensive test server
340: analysis client
350: virtual information generator
400: Center LDM
401: RSE
402: OBE
403: vehicle gateway

Claims (13)

An information collector for collecting data from a test subject;
An analysis client that provides a UI for generating test rules and test scenarios; And
A comprehensive test that generates a test rule and a test scenario selected through the UI of the analysis client, performs a V2X comprehensive test with data from the information collector according to a test scenario containing the generated test rule, and analyzes the test result Server; Including,
The test object,
Roadside base station device for outputting dynamic vehicle information and road information using V2X communication installed around the road;
A center LDM for receiving traffic information, unexpected information, vehicle operation information, and weather information, outputting a dynamic information message for each road, and receiving dynamic vehicle information and road information from the roadside base station device;
In-vehicle communication terminal for outputting V2X information including dynamic information of the vehicle by using V2X communication installed in the vehicle; And
A connected car test system comprising: a vehicle gateway that processes/transmits V2X information from the in-vehicle communication terminal into the vehicle and transmits information received from the vehicle internal system to the vehicle internal and external systems. delete The method according to claim 1,
The information collector,
A data collector collecting information from the roadside base station apparatus, a center LDM, an in-vehicle communication terminal, and a vehicle gateway and providing the information to the comprehensive test server; And
And a wireless packet sniffer that collects packets transmitted through a wireless communication channel transmitted by the roadside base station apparatus and an in-vehicle communication terminal and provides them to the comprehensive test server. The method of claim 3,
The data collector,
The connected car test system, comprising providing the collected information to the comprehensive test server including collection time and collection location information. The method according to claim 1,
The comprehensive test server,
Instead of the center LDM, a test message is generated and transmitted to the roadside base station device, the in-vehicle communication terminal, and the vehicle gateway, and the information transmitted and received by the roadside base station device, the in-vehicle communication terminal, and the vehicle gateway is collected, and the collected information is And a first mode for performing analysis according to the generated test scenario. The method according to claim 1,
The comprehensive test server,
And a second mode for collecting messages generated and transmitted by the center LDM and information transmitted and received by the roadside base station device, in-vehicle communication terminal, and vehicle gateway, and analyzing the collected information according to the generated test scenario. Connected car test system, characterized in that. The method according to claim 1,
The comprehensive test server,
And a third mode for loading, analyzing, deleting, and modifying test data collected through the information collector and test scenario data previously collected. The method according to claim 1,
A connected car test system comprising: a virtual information generator that provides the test object with virtual signals and information necessary for the test. The method of claim 8,
The virtual information generator transmits a GPS signal and a vehicle CAN signal for testing of an in-vehicle communication terminal indoors where there is no vehicle signal or GPS signal,
The in-vehicle communication terminal receives a GPS signal and a vehicle CAN signal and performs a functional operation for the test. The method according to claim 1,
The analysis client,
A screen shortcut icon that enables you to move to any one of the test rule edit screen, test scenario edit screen, and performance evaluation screen, test rule and test scenario usage number status area, log collection status graph by test date, on the map A connected car test system comprising: an area displaying a test rule and a test scenario status, an area representing a table representing a list of currently generated test scenarios, and a screen including a test rule information display area. As a test method in a connected car test system,
Collecting data from the test subject;
Generating test rules and test scenarios;
Performing a comprehensive V2X test with the collected data according to a test scenario including the generated test rule; And
Analyzing the results of the test; Including,
The test object,
Roadside base station device for outputting dynamic vehicle information and road information using V2X communication installed around the road;
A center LDM for receiving traffic information, unexpected information, vehicle operation information, and weather information, outputting a dynamic information message for each road, and receiving dynamic vehicle information and road information from the roadside base station device;
In-vehicle communication terminal for outputting V2X information including dynamic information of the vehicle by using V2X communication installed in the vehicle; And
And a vehicle gateway that processes/transmits the V2X information from the in-vehicle communication terminal into the vehicle and transmits the information received from the vehicle internal system to the vehicle internal and external systems. delete The method of claim 11,
The step of collecting the data,
Collecting information from the roadside base station apparatus, a center LDM, an in-vehicle communication terminal, and a vehicle gateway; And
And collecting packets transmitted through a wireless communication channel transmitted by the roadside base station apparatus and an in-vehicle communication terminal.

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