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Purpose of cloud type VR application |
Advantage of cloud In the standalone application, the minimumre equipment is a computer which allows the control of VR application. As real-time rendering of 3D movie and simulation calculation are performed with this computer, an advanced, high specification computer is highly recommended. Should you want to execute driving simulation and walking simulation, a special simulator hardware is required and that may result in increased complexity of the system configuration. The following list shows the items required when adopting the system.
1-4 are initial costs, and 5 is running cost. The following items are considered as running costs,
however, once the system is installed, the system will often be operated in the same condition. Therefore, the mounted application such as VR applications are different in most of cases, so that it is difficult to manage the condition of each system. Due to it, when the problems occurs, it might be required much working effort to recover the system. This type of the administrative problem will be charged by the customers who adopts the system. In these cases, most of the problems can be solved by adopting cloud type of VR (SaaS). The following advantage can be enjoyed.
When cloud type of VR is installed, it is advantageous to both developers and users. As the update and maintenance cost can be reduced, it provides high cost-advantage.
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Feature of cloud type VR application |
VR has features to reproduce the realistic environment where driving, walking,
interaction with environment, and communication with others can be performed.
Anyone can use it as "Communication tool using VR" in a wide
range of scenes. This communication tool is a system which acquires information during simulation and provides for other users and related people who is working collaboratively in a project. (Text and diagram). This time, the functions for consensus formation were developed and they can also be used for collaborative design, education, and training. VR is an excellent communication tool which allows simple communication through the integration of a number of information. In addition, it helps individuals understand a variety of events easily through visualization by simulation. One of the advantages of cloud is the use of the function of thin client software. Data management and system operation can be performed regardless of place and computer environments. To provide additional value to VR application, simulation can be performed by integrating external analysis software. In the case of a standalone system, analysis software is installed in each user's computer, and complex settings are required. In addition, users are required to possess the same system version in order to be consistent in the application management. The cloud system results in the reduction of user's operational cost and easy management and support of people who provide the service. Other than operational advantages, it also encourages the development of online service of other applications by integrating VR applications with other applications. It is expected that the service for adding the value in cloud is provided including the system which allows the evacuation training, training for evacuation guidance, evacuation experiments by many users by linking with application of evacuation analysis. Besides, it can be assumed that the visualization of control system of robot, machine and facility and the construction of cloud type control interface. |
Improvement from previous version |
The performance and functionality of UC-win/Road for SaaS are mainly developed. The latency (time it takes until the user's operation reflects in the result of user's interface) of system is largely reduced. If latency is large, it may cause the user to feel uncomfortable and experience simulation sickness and this makes the operation difficult. In the system configuration of UC-win/Road for SaaS, the calculation of the operation executed by users and creation of movie are performed in server side, and the results are transmitted to the computer as a movie. Latency by data communication between computer and server and latency by data process occur. In this development, the data progress and the use of network protocol (TCP/IP) for information transmission. This allows the optimization of performance and burden in server side. The frame rate and latency are measured in multiple resolutions, and Figure3 shows the measured result. The existing simulation functions of UC-win/Road can be used, and a new consensus formation support tool has been developed.
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System configuration |
The system of UC-win/Road for SaaS consists of multiple modules.UC-win/Road application is activated in the server side, and the new client softwares
are activated in the client side. Between application and client, there
are modules for the preparation and communication of operational information,
movie information, and other data. The system which connects UC-win/Road with client computer is developed as independent system, and called as "a3s". For the details of a3s is described in the next article. |
Available feature on client computer |
Future development |
Now, the scenario set in the data of UC-win/Road can be used. It supports
for the interactive driving simulation, change of environment and surrounding
traffic situation based on user operation. In this development, the scenario feature of UC-win/Road has been mainly expanded. The event starts by clicking on the 3D model in virtual space like in reality. |
(Up&Coming '11 Fresh Green Leaves Issue) | ||
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