US 6,641,399 B2Granted

VR motion base control apparatus and it's supporting structure

AssigneesHitachi, Ltd., Hitachi Keiyo Engineering Co., Ltd.

InventorsTsukasa Shiina, Minoru Katoh, Masayuki Oshiro, Takayuki Kamiya, Hiroshi Sakairi, Masami Otomo, Kenji Seino

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Abstract

In a VR motion producing apparatus and an apparatus, comprising: a reception unit for receiving a presently projected picture frame No. from a picture apparatus; a detection unit for detecting a frame No. of operation data of a motion base presently executed by a motion base; a difference unit for comparing the picture frame No. with the motion frame No. to calculate a difference between them; a calculation unit for calculating an operation velocity of a motion base so as to correct this difference value; and a synchronization unit for reducing the difference between the picture frame No. and the motion frame No. for operating the motion base from the calculated velocity, a simulation rider transporting apparatus is featured by that an object to be controlled is a dynamic object; a motion model conversion unit is an apparatus for converting a motion model of a dynamic object to be controlled into a motion model of a motion base having a finite stroke, and furthermore contains two crank arms whose one ends are coupled to an elevation unit, a motor equal to a drive unit for changing an angle “∝” between the two crank arms into a preselected value to hold this changed angle, and a speed reducing machine; and a crank rod is coupled to a rider containing base while having a rotation free degree along 3 axial directions.

Claims2

Dependent claims

A simulation rider transporting apparatus comprising:

a seat including means for constraining an attitude of a rider in a position thereof;
a first base for riding thereon both the rider and said seat;
a second base arranged under said first base;
and elevation means for elevating said first base, wherein:
said elevation means comprises two cranks which are arranged opposite to each other between said first base and said second base;
each of said cranks has a crank arm, each crank arm having an end coupled to said second base, and a crank rod for coupling the other end of each crank arm to said first base;
each said end of each crank arm coupled to said second base is supported in a swing free manner by one common axis, each of said crank arms extends away from the other crank arm in an opposite direction from said common axis and is angularly adjustable relative to the other crank arm around said common axis to change a relative angle between said crank arms;
one end of each crank rod is supported in a rotation free manner to said other end of said crank arm, and the other end of each crank rod is commonly coupled to said first base by a coupling means having a rotation free degree along three axial directions;
and a single motor constituting drive means is provided for changing the relative angle between said two crank arms to a predetermined value, and for holding said changed relative angle.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/066,692Filed 6 Feb 2002 · continuation
Priority: JP 10-08309230 Mar 1998
Published: US 2002/0155414 A124 Oct 2002
Granted: 4 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

A63G 31/16
Amusement arrangements: creating illusions of travel
G09B 9/14
Motion systems for aircraft simulators: controlled by fluid actuated piston or cylinder ram
A63G
Merry-go-rounds
G09B
Educational or demonstration appliances