The output item and the order of the log can now be arbitrarily defined. It becomes possible to output only the necessary information, and reduction of decline in performance due to log output load and network load (When transmitting UDP) can be achieved. The setting item is saved in a dedicated INI file, thus the reuse between different PCs is possible.

Figure 1  Setting of output item

4 automatic driving function, "speed automatic control" ,"steering automatic control", "brake assist", and "piled display of the preceding vehicle information" has been added in the driving simulation by scenario. 

Speed automatic control and brake assist realizes the ACC (Adaptive Cruise Control) function, which controls the vehicle speed and the inter-vehicular distance depending on the distance to the preceding vehicle. Due to this, a simulation taking into account vehicles with various driving assist functions became possible, and the verification of the driver's adapting ability while automatically driving and safety in a car-to-car situation, the evaluation of the prevention safety technology within the virtual space, and the utilization of the ITS (advanced road traffic system) to research became possible.

Figure 2  ACC Function

Kinect plug-in provides API usable for various interactions and control of robots by cooperating the distance image sensor (Kinect Xtion Pro / Live) and the UC-win/Road. With this plug-in, information such as distance image, 3 dimensional joint position, driving behavior, gesture, and the opening and closing of the hand, becomes easily accessible. For your information, the program of vehicle driving and robot arm operation has been included as a sample.

　
Figure 3 Acquired data (depth information + skeleton)

This function carries out import to "road cross section", "3D model" from DWG file data and export of UC-win/Road space model.

For an import to a "road cross section", a cross section is registered reading the X, Y coordinates from a CAD file composed of "line segment", "polyline", and "object (without a curve)". For an import to a "3D model", a model is registered reading the surface from a CAD file composed of "3 dimensional surface (face)", "region", "fill (solid)", "mesh", "surface", and "object (without a curve)". Also, for CAD files composed of multiple "layer", it is read as an "instance", and it will be placed in 3D space. During export, the space of the UC-win/Road can be output, classifying by each road, terrain, or layer. Also, a color setting depending on the display color of the UC-win/Road is possible.

DWG export (left: UC-win/Road, right: DWG Viewer Software)

The representation function of the railway was a diversion of the function of automobiles, but this time a function peculiar to railroad tracks is newly added, making it possible to represent trains running adjusting to tracks of specified conditions.

The introduction of the survey center line and structure center line: "Survey center line", "structure center line", and "orbit center line" can now each be managed separately.

The definition of distance degree: The definition of distance degree in railway has been clearly defined as "the distance along the survey center line".
Relaxation curve, vertical curve: In linear railways, "circular curve" as a vertical curve, "cubic parabola" and "sine half wave length curve" as a relaxation curve are usable.

The creation of a horizontal alignment by offset: Having the alignment created by IP method as a standard, the creation of the alignment by offset became possible.

The representation of cant: Having the train speed as a standard, automatically calculating the cant and reflecting it to the cross section of the road became possible.

The representation of the turnout: By creating an orbit center line and inputting the radius of the turnout incidental curve, the creation of the turnout becomes possible.

The representation of a running train: An arbitrary railway vehicle model may run on the alignment created. Simultaneous representation of multiple trains, direct running across multiple orbits, and the representation of the switching of the driver's subjective perspective and the train's bird's eye perspective are possible.

Creation of a structure and a train running

The head tracking function is a plug-in that receives viewpoint position information of the driver in real time from a sensor such as Kinect and transmits to the main body of UC-win/Road while driving. Depending on the change of the driver's viewpoint position , the landscape from the driver's seat and the scenery displayed in the back mirror and side mirror changes. The coordinate values from the sensor can be received in UDP or API.

Change of side mirror display

System composition image

Multi user function was displaying multiple screens in a single PC for each user, but by extending the cluster function to display each screen in a single PC, a high FPS can now be secured in the simulator. The list of the machines are managed in a tree structure and the setting can be done in the list display. Clients for exclusive use of display are assigned to master PCs or free operable PC clients. The assigned destination can easily be changed by drag and drop.

The crowd movement function have significantly been improved, realizing a crowd movement simulation that is closer to reality. The representation functions that have been improved are as follows.

The addition of the starting point and the destination point: The flow of the pedestrians from the starting point till the destination point is now definable. A more precise control of simulations became possible and it can be used in analyzing the flow of people under various conditions.

The addition of the types of routes and links: New types of routes (station, stair, escalator) and links (elevator, waiting room) can now been taken into account, and the construction of a further advanced simulation environment became possible. The actions of the pedestrians changes more naturally depending on the situation.

The improvement of the path search algorithm: Due to the strengthening of the artificial intelligence, pedestrians choose the shortest path to the destination point depending on the situation.

Pedestrians' profiles: The attribute of behaviors, such as the average speed and the propriety of the usage of stairs, to the pedestrians became configurable. It is effective for simulations of pedestrian groups such as adults, children, and the disabled.

The log acquisition of the pedestrian information in real time: To be able to use it in data analysis, the flow rate and the density of the pedestrians of a specific position can be measured and saved in a log.

The editing of the pedestrians' profiles

Oculus Rift is a head mount display that cheaply realized head tracking and 3D video output of a wide perspective by the built-in sensor.

Oculus Rift plug-in adds distortions, adjusted to the characteristics of the lens of the Oculus Rift, to videos and outputs them as well as making it follow the perspective within the UC-win/Road adjusting to the movement of the user's head using sensor data. By this, the immersion to the 3D space have improved, and a higher quality of driving simulation is realized.

Oculus Rift and the stereo display screen

*Oculus Rift was developed by Oculus, Inc. (USA)(http://www.oculusvr.com/)

Driving diagnosis plug-in is a system that evaluates the driver's skills. It can evaluate items concerning driving skills such as driving speed and sudden acceleration and deceleration, and whether the driver is not meandering or doing abrupt steering control. At this time, it is possible to carry out an evaluation using the grading criteria which differs for each driver and accumulate the results.

In the future, an addition of evaluation items concerning traffic laws such as lane change and the accuracy of stop are planned.

(Up&Coming '14 Summer Issue)