WO2016190509A1

WO2016190509A1 - Traffic safety service test system

Info

Publication number: WO2016190509A1
Application number: PCT/KR2015/014242
Authority: WO
Inventors: 송석일; 문철; 고균병
Original assignee: 한국교통대학교산학협력단
Priority date: 2015-05-26
Filing date: 2015-12-24
Publication date: 2016-12-01

Abstract

The present invention relates to a traffic safety service test system comprising: first and second vehicle driving simulators for generating state information of first and second vehicles; first and second traffic simulators for receiving the state information of the first and second vehicles from the first and second vehicle driving simulators and generating driving data of the first and second vehicles; a simulator to on board unit (Sim2OBU) server for collecting, from the first and second traffic simulators, the state information of the first and second vehicles and the driving data of the first and second vehicles, and storing the same; and first and second on board units (OBUs) including first and second virtual GPS servers for receiving, from the Sim2OBU server, the state information of the first and second vehicles and the driving data of the first and second vehicles and generating first and second basic safety messages (BSMs), wherein the first and second OBUs exchange the first and second BSMs with each other, and each of the first and second OBUs calculates the possibility of a collision between the first vehicle and the second vehicle on the basis of the exchanged first and second BSMs.

Description

Traffic safety service test system

An embodiment of the present invention relates to a traffic safety service test system.

Cooperative Intelligent Transport System (C-ITS) installs communication terminals on roadside communication infrastructures, vehicles, motorcycles and pedestrians, and predicts traffic accidents and provides warnings through bidirectional information exchange to prevent traffic accidents. It is the next generation ITS system to improve driving convenience.

The core of C-ITS is V2X (Vehicle to Vehicle, Vehicle to Infra, Vehicle to Pedestrian, Vehicle to Bycle, etc.) communication technology that vehicles, pedestrians, motorcycles, etc. exchange information.

Currently, the international communication standard protocol for V2X is IEEE 802.11p / Wireless Access in Vehicle Environments (WAVE).

In order to develop V2X service and application system, it is necessary to equip with WAVE standard on-board communication unit (OBU) and infrastructure communication unit (Road Side Unit). To properly verify the developed service or application system, it is necessary to test based on actual OBU and RSU.

Previously, in order to test the developed V2X-based traffic safety service and application system, it was necessary to establish a test environment on a real road and then test the performance by constructing a traffic accident situation.

Or, a test method in a virtual environment using a traffic simulator on a PC was also used. Actual road testing requires a lot of cost and time, and there is a problem in scalability. In addition, the test using only the traffic simulator is impossible to test whether the developed service or application works properly in the WAVE device.

In order to reduce social costs caused by traffic accidents and traffic jams at home and abroad, interest in traffic safety and convenience services using V2X communication has increased greatly, and development efforts have been gradually expanded.

Accordingly, there is an increasing demand for testing and verification of V2X communication-based traffic safety services and applications.

Existing test methods do not fully meet these requirements, and a new test bed is provided that provides a test environment similar to the outdoor environment test indoors and that can test and verify traffic safety services considering driver behavior including WAVE equipment. need.

Related prior arts include Korean Patent Publication No. 10-2015-0043592 (name of the invention: V2X simulation apparatus, method and computer program product, published date: April 23, 2015).

The present invention has been made to solve the above-mentioned problems, and interlocked with the traffic simulator and WAVE equipment, the driver directly operates the vehicle in the virtual environment provided by the traffic simulator, and test and verify the V2X-based traffic safety service and application system A new test bed can be provided.

In addition, the present invention is to provide a similar environment to the road driving in the room, to test the service and system developed based on the WAVE equipment.

The traffic safety service test system according to the present embodiment for solving the above-described problems includes first and second vehicle simulation driving mechanisms for generating state information of the first and second vehicles; First and second traffic simulators configured to receive driving state information of the first and second vehicles from the first and second vehicle simulation driving mechanisms and to generate driving data of the first and second vehicles; A Sim2OBU server configured to collect and store state information of the first and second vehicles and driving data of the first and second vehicles from the first and second traffic simulators; And first and second virtual GPSs configured to receive first and second vehicle state information and driving data of the first and second vehicles from the Sim2OBU (Simlulator to OBU) server to generate first and second basic safety messages (BSMs). A first and second on board units (OBUs) including a server, wherein each of the first and second onboard units exchanges the first and second basic safety messages (BSMs). Based on the first and second BSMs (Basic Safety Messages) exchanged, the possibility of collision between the first vehicle and the second vehicle is calculated.

According to another embodiment of the present invention, the mobile terminal for displaying the collision possibility from the first, second OBU (On Board Unit); may further include.

According to another embodiment of the present invention, the first and second traffic simulators may respectively display the generated driving data of the first and second vehicles on a map.

According to another embodiment of the present invention, the first and second on-board units (OBUs) may exchange the first and second basic safety messages (BSMs) between each other through an IEEE 802.11p / WAVE protocol.

According to another embodiment of the present invention, the first and second OBUs (On Board Units) receive traffic related information from a roadside base station (RSU) or from the roadside base station (RSU). The transmitted traffic related information may be received through the Simulator (OBU).

According to another embodiment of the present invention, the driving data may include location GPS information, a moving direction, a speed, a yaw rate, and brake information of the first and second vehicles.

The present invention provides a new test bed for interfacing a traffic simulator with a real commercial WAVE equipment, driving a vehicle directly in a virtual environment, and testing and verifying a V2X-based traffic safety service and application system.

According to the present invention, it is possible to test a service and a system developed based on actual WAVE equipment by providing an environment similar to driving on a road indoors.

1 is a view showing the configuration of a traffic safety service test system according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. However, in describing the embodiments, when it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted. In addition, the size of each component in the drawings may be exaggerated for description, it does not mean the size that is actually applied.

The present invention intends to propose a new test system for interworking a traffic simulator and WAVE equipment, driving a vehicle directly in a virtual environment, and testing and verifying a V2X-based traffic safety service and application system.

The traffic safety service test system according to the present invention provides an environment similar to driving on a road indoors, so that the service and system developed based on the WAVE equipment can be tested.

As shown in FIG. 1, the traffic safety service test system according to an exemplary embodiment of the present invention includes a first vehicle simulation driving mechanism 110, a second vehicle simulation driving mechanism 115, a first traffic simulator 120, It includes a second traffic simulator 125, Sim2OBU (Simlulator to OBU) server 130, a first OBU 140, a second OBU 145, a first portable terminal 150 and a second portable terminal 155 It can be configured by.

The first vehicle simulation driving mechanism 110 generates state information of the first vehicle, and the two vehicle simulation driving mechanism 115 generates state information of the second vehicle. In this case, the state information of the first and second vehicles refers to state information of devices such as wheels, brakes, and transmissions of the vehicle operated for driving of the vehicle.

In more detail, in the traffic safety service test system according to an embodiment of the present invention, the first OBU 140 and the second OBU 145 may be configured with WAVE equipment, and the first traffic simulator 120 And the second traffic simulator 125 may be driven and interlocked on the PC, and the state information and driving data of the vehicle output from the first traffic simulator 120 and the second traffic simulator 125 may be simulated using Sim2OBU. The OBU server 130 may receive the data and deliver it to the first and

second OBUs

140 and 145, respectively.

In order to test the first and second OBUs 140 and 145, driving data, such as when driving on an actual road, must be transmitted to the first and second OBUs 140 and 145.

To this end, the Sim2OBU server 130 receives driving data virtually generated by the first and

second traffic simulators

120 and 125, and maps the result of the mapping to the actual roads to the first and second OBUs 140 and 145. To pass on.

The driving data may include location GPS information, a moving direction, a speed, a yaw rate, and brake information of the first and second vehicles.

The first traffic simulator 120 receives the state information of the first vehicle from the first vehicle simulation driving mechanism to generate driving data of the first vehicle, and the second traffic simulator 120 performs the second vehicle simulation driving. Receive state information of the second vehicle from the mechanism to generate driving data of the second vehicle.

In more detail, the first and

second traffic simulators

120 and 125 may be configured to configure an experimental scenario environment on a PC so that a driver can drive the vehicle in a virtual environment, and thus the vehicle in the virtual environment. The driving data of the vehicle may be generated by driving.

Meanwhile, the driving data may include location GPS information of the first and second vehicles, a moving direction, a speed, a yaw rate, and brake information, and the first and second traffic simulators 120 and 125. ) May display the generated driving data of the first and second vehicles on a map, respectively.

The Sim2OBU (Simlulator to OBU) server 130 collects and stores state information of the first and second vehicles and driving data of the first and second vehicles from the first and

second traffic simulators

120 and 125.

At this time, the Sim2OBU (Simlulator to OBU) server 130 is connected via a link with the first and

second traffic simulators

120 and 125 implemented on a PC, or alternatively the Sim2OBU (Simlulator to OBU) server 130 May be implemented on a PC together with the first and

second traffic simulators

120 and 125.

The first OBU 140 includes a first virtual GPS server 141, and the second OBU 145 includes a second virtual GPS server 146.

The first virtual GPS server 141 receives the first vehicle status information and driving data of the first vehicle to generate a first BSM (Basic Safety Message), and the second virtual GPS server 146 The second vehicle state information and the driving data of the second vehicle are received to generate a second BSM (Basic Safety Message).

In this case, the first and second BSMs are actual road driving information converted by using the driving data.

In addition, the first and second On

Board Units

140 and 145 exchange the first and second Basic Safety Messages (BSMs). In this case, the first and second on-board units (OBUs) may exchange the first and second basic safety messages (BSMs) with each other through an IEEE 802.11p / WAVE protocol.

In more detail, the first and second on-

board units

140 and 145 parse each of the first and second basic safety messages (BSMs) received from each other to determine the position, speed, and direction of the other vehicle. The vehicle collision prediction algorithm can be used to calculate the probability of collision.

That is, the first OBU 140 parses the second BSM (Basic Safety Message) of the second vehicle received from the second OBU 145 to position, speed, and direction the second vehicle. The probability of collision between the first vehicle and the second vehicle can be calculated by analyzing the.

Similarly, the second On Board Unit 145 parses the first Basic Safety Message (BSM) of the first vehicle received from the first On Board Unit (OBU) 140 to determine the position, speed, and direction of the first vehicle. The probability of collision between the second vehicle and the first vehicle can be calculated by analyzing the.

Meanwhile, according to an embodiment of the present invention, the first and

second OBUs

140 and 145 may receive traffic related information from a road side unit (RSU), or the roadside base station (RSU: Road). Traffic related information transmitted from a side unit may be received through the Simulator (OBU).

The first and second

portable terminals

150 and 155 may receive and display the calculated probability of collision between the first and second vehicles from the first and second on-

board units

140 and 145. The two

portable terminals

150 and 155 may receive the calculated collision probability through a communication link with the first and

second OBUs

140 and 145, respectively, and visualize and display the collision possibility.

Accordingly, the driver transmits an action for avoiding an accident to the first and

second traffic simulators

120 and 125 by using the information displayed through the service app of the first and second

mobile terminals

150 and 155 to communicate between the vehicles. You can avoid accidents.

In addition, the first and second

portable terminals

150 and 155 may provide traffic related information received through the first and

second OBUs

140 and 145 to the user, and the user may provide the traffic related information. Can be used to drive the vehicle.

On the other hand, the first and second OBU (On Board Units: 140, 145) is composed of different manufacturing equipment, may be configured to enable compatibility testing between different manufacturers OBU (On Board Unit).

In addition, according to another embodiment of the present invention, and transmits via a wireless channel through the transmission antenna of the WAVE equipment corresponding to the first, second OBU (On Board Units 140, 145) or the roadside base station (RSU) BSM of OBU (On Board Unit) in the environment similar to actual wireless channel environment by using RF channel emulator that receives through receiving antenna of counterpart WAVE device or simulates wireless channel characteristics between RF output port and input port of each WAVE device. (Basic Safety Message) and RSU messages can be sent.

On the other hand, according to another embodiment of the present invention, the collision prediction unit for calculating the collision probability may be mounted on the portable terminal. According to another embodiment of the present invention, the first and

second traffic simulators

120 and 125 include two or more vehicles and different on-board units (OBUs) interlocked with each vehicle to provide traffic for a plurality of vehicles. It can be configured to test the safety service.

In the detailed description of the invention as described above, specific embodiments have been described. However, many modifications are possible without departing from the scope of the invention. The technical spirit of the present invention should not be limited to the above-described embodiments of the present invention, but should be determined not only by the claims, but also by those equivalent to the claims.

Claims

First and second vehicle simulation driving mechanisms for generating state information of the first and second vehicles;

First and second traffic simulators configured to receive driving state information of the first and second vehicles from the first and second vehicle simulation driving mechanisms and to generate driving data of the first and second vehicles;

A Sim2OBU server configured to collect and store state information of the first and second vehicles and driving data of the first and second vehicles from the first and second traffic simulators; And

First and second virtual GPS servers generating first and second basic safety messages (BSMs) by receiving the first and second vehicle state information and driving data of the first and second vehicles from the Sim2OBU (Simlulator to OBU) server It includes; First, 2 OBU (On Board Unit) comprising;

Each of the first and second OBUs (On Board Unit),

The first and second BSMs are exchanged with each other, and based on the exchanged first and second BSMs, a possibility of collision between the first vehicle and the second vehicle is calculated. Traffic safety service testing system.
The method according to claim 1,

A mobile terminal for displaying the collision possibility from the first and second OBUs;

Traffic safety service test system comprising more.
The method according to claim 1,

The first and second traffic simulators,

A traffic safety service test system for displaying the generated driving data of the first and second vehicles on a map, respectively.
The method according to claim 1,

The first and second OBUs (On Board Unit),

A traffic safety service test system for exchanging the first and second basic safety messages (BSMs) with each other through an IEEE 802.11p / WAVE protocol.
The method according to claim 1,

The first and second OBUs (On Board Unit),

Receive traffic-related information from Roadside Units (RSUs),

A traffic safety service test system for receiving traffic related information transmitted from the roadside unit (RSU) through the Simulator (OBU).
The method according to claim 1,

The driving data is,

A traffic safety service test system including location GPS information, direction of movement, speed, yaw rate and brake information of the first and second vehicles.