XML for training field

The training field data of WR-AOTS™ Ver. 2.10 is XML format. Thus, you can edit the training field, not only by the Edit window of WR-AOTS™ Ver. 2.10, but also by a XML editor or a general text editor.

The DTD file and XML Schema file of the XML for the training field is on the following URL. Please download and read it.

Supplementation for XML

  • WR-AOTS™ Ver. 2.10 does not use all elements of the XML defined by DTD and XML Schema.

  • The Source window of WR-AOTS™ Ver. 2.10 can show the source code of XML, but you can not edit it from this window directly.

  • In the Edit window of WR-AOTS™ Ver. 2.10, you cannot edit the training field name (the training field file name except extension will be the training field name automatically), but if you can edit the source code of XML directly, you can give its name freely.

  • In the source code of XML, the distances are expressed in cm, not in m, because 3-D sound processors of AOTS Ver. 1.0 used cm to express the distance.

  • In the source code of XML, the Card and the Phrase are combined and described as phrase element.

End of XML for training field.
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Wide-range positioning

WR-AOTS™ Ver. 2.10 uses the wide-range positioning technologies to measure the position and direction of the trainee's head.

Wide-range positioning technology is a general term of the positioning technologies having unlimited measurement range, and including GPS, acceleration sensor, gyro sensor, terrestrial magnetism sensor, etc. WR-AOTS™ Ver. 2.10 uses the following wide-range positioning sensors.

  • GPS : USB-connectable NMEA-formatted GPS (* However, use of GPS is not recommended now)
  • Acceleration sensor : Built-in triaxial acceleration sensor of Wii® Remote Plus Controller™
  • Gyro sensor : Built-in triaxial gyro sensor of Wii® Remote Plus Controller™
  • Terrestrial magnetism sensor : non

Generally, the values measured by wide-range positioning sensors include large errors. In order to reduce influence of the errors, WR-AOTS™ Ver. 2.10 conducts the following processes.

  • Removal of noise and bias from measured values

    The measured values of sensors include noise (measurement error as rapid vibrations) and bias (measurement error as long-term constant value). These are removed by mathematical processes.

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  • Stable operation mode

    This process is conducted only when the Stable operation checkbox is checked.

    This figure shows Stable operation checking the INS checkbox.

    Only the stable outputs of gyro and Wii® Remote Plus Controller™ are used to navigate. The details are as follows.

    • The measured values of GPS are ignored.
    • Only the up-down acceleration measured by Wii® Remote Plus Controller™ is used for detecting the head vertical sway in walking, and both front-back and right-left accelerations are ignored. Furthermore, the up-down acceleration is used only to switch start and stop of the forward movement.
    • Only the horizontal rotation (yaw) measured by Wii® Remote Plus Controller™ is available, and the vertical rotations (pitch and roll) are ignored.
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  • INS

    When the positioning value of GPS cannot be used, only the measured value of the acceleration sensor is used to find the position. When the positioning value of GPS can be used, both the measured value of the acceleration sensor and the positioning value of GPS are used to find the position. During this process is conducted, the INS indicator shows available by lighting (red).

    This figure shows that INS indicator shows available
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  • The positioning values of GPS include several m - dozens m error. The positioning value from GPS is received every 1 s. If the GPS sends the moving distance that is impossible to be moved with in 1 s in the human walking velocity (e.g. over 20 m), this is regarded as drift and is ignored. In this case, even if the receivable Satellites are 4 or over, GPS indicator shows unavailable by light-out (black).

    This figure shows that GPS indicator shows unavailable even though the receivable Satellites are 4.
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End of Wide-range positioning.
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Rules of public sounds

WR-AOTS™ Ver. 2.10 includes samples of training field data based on Japanese rules of public sounds. We hope they are of help to you.

End of Rules of public sounds.
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Sound of vehicle

In WR-AOTS™ Ver. 2.10, the Sound can perform various motions so that the trainings by using running sounds of vehicles can be performed.

  • Turning

    In WR-AOTS™ Ver. 2.10, the Sound can turn a curve just like a actual car. The acceleration distance, deceleration distance, and turning speed are calculated automatically by the initial position, velocity, and turning center. The turning angle is fixed as 90 deg.

    This figure shows the turning of the Sound. This figure shows that the Sound moves straight in constant speed, decelerates, turn 90 deg, accelerates, and finally moves straight in initial speed.
    音源の移動の最初へ

  • Stopping and Going

    In WR-AOTS™ Ver. 2.10, the Sound can decelerate, stop, keep still for a certain time, then go, accelerate, and finally move again in the initial velocity, just like a actual car.

    This figure shows the stopping and going of the Sound. This figure shows that the Sound decelerates, stops, keeps still for a certain time, then geso, accelerates, and finally moves again in the initial velocity, just like a car can.
    音源の移動の最初へ

  • Engine sound

    In WR-AOTS™ Ver. 2.10, the rotation and volume of engine sound of vehicle varies depending on velocity.

    音源の移動の最初へ
End of Moving of Sound.
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WR-AOTS-210 folder

This section explains the 6 items in the WR-AOTS-210 folder briefly.

End of WR-AOTS-210 folder.
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