WO2003102598A2

WO2003102598A2 - A device for measuring the movement in 3d space

Info

Publication number: WO2003102598A2
Application number: PCT/KR2003/001040
Authority: WO
Inventors: Won-Cheol Jeong
Original assignee: Jung Wonchul
Priority date: 2002-05-31
Filing date: 2003-05-28
Publication date: 2003-12-11
Also published as: AU2003237039A8; AU2003237039A1; KR100477756B1; WO2003102598A3; KR20030093080A

Abstract

This invention is the device that measures the change of position in 3-dimensional space. For that, this invention consists of the equipment that produces the difference of pressure by gravity, the equipment that senses the pressure, the equipment that stores the pressure data, the equipment that measures the change of position in 3-D by operating pressure data, and the equipment that transmits the effect of data operated. In this invention, the device calculates the angle and distance by sensing the change of pressure measured, the change of position, or motion, in 3D space by converting the pressure data into the angle data, or the acceleration data. In conclusion, the device can measure the movement in 3D space.

Description

[Description]

[Name of the invention]

A device for measuring the movement in 3D space

[ Technical Field ]

This invention is the device and the system that measures the movement in 3D space. Especially, this invention can measure the relative movement by detecting the pressure difference that is produced from the pressure-producing device between points of time.

[ Background Art ]

The existing device, that measures the movement, includes a usual 2D mouse for PC. The existing mouse measures the movement by detecting the rolling every unit time or using beam sensor. And There is also the touch-pad or touch-pen used in notebook or PDA in the existing device. Such existing devices are limited in 2D space, therefore they have the problem that movement is restricted and it gives the data only from 2D space.

[ Disclosure of Invention ] This invention has an intention to get the position data on 2D space by using the pressure difference in tilted equipment on 3D space , to get the position data on Z-axis by using the difference of pressure in moving equipment , and to get the movement data in 3D space in conclusion. The movement of this invention in 3D space is not limited in 2D, therefore there is no space limit to use and there is an effectiveness to know the movement of 3D space.

[Brief Description of Drawings]

Dl is a drawing that shows the example of the device, which measures the movement in 3D space in this invention D2 is a drawing that shows the example of the device, which measures the movement in 3D space in this invention

D3 is a side diagram drawing that shows the example of the device, which measures the movement in 3D space in this invention

D4 is a front diagram drawing that shows the example of the device, which measure the movement in 3D space in this invention

D5 is a system drawing that shows the steps measuring the movement in 3D space in this invention

D6a ~ D6f are drawings that show the device that produces pressure difference by using only solid in this invention

D7 is a drawing of the device that produces pressure difference by using big sphere-type solid in this invention

D8a ~ D8b are drawings of the device that produces pressure difference by using small sphere-type solid in this invention

D9a ~ D9d are drawings of the device that produces pressure difference by using big sphere-type solid and liquid in this invention

DlOa ~ DlOd are drawings of the device that produce pressure difference by using small sphere-type solid and liquid in this invention

Dlla ~ Dllc are drawings of the device that produce pressure difference by using only liquid in this invention D12 is a block diagram that shows the example of the rest with the exception of the device that produces pressure difference in this invention

D13 is an arrangement diagram of the inside of main box included in the examples in this invention < The explanation of variables about the primary part in (drawings) >

100 : The device that produces pressure difference

111 : The body of the device that produces pressure difference 112 : The terminal for input and output

113 : The equipment that senses the pressure

114 : The Solid

115 : The equipment that senses the pressure

116 : FIJI 117 : F3,P3 118 : F2,P2 121 : The body of the device including a big sphere-type solid

122 : The terminal for input and output

123 : The equipment that senses the pressure

124 : The layer of air

125 : The big sphere-type solid 131 : The body of the device including a small sphere-type solid

132 : The equipment that senses the pressure

133 : The small sphere-type solid

134 : The inducement line of the sphere-type solid

135 : The equipment that senses the pressure 141 : The body including a big sphere-type solid and liquid of the device that produces the pressure difference

142 : The device that produces pressure difference

143 : The fixing body of the equipment that senses the pressure 144 : The liquid 145 : The big sphere-type solid

146 : The teπninal for input and output

151 : The body of the device including a small sphere-type solid and liquid

152 : The equipment that senses the pressure

153 : The inducement line of the sphere-type solid

154 : The small sphere-type solid

155 : The liquid

156 : The equipment that senses the pressure

161 : The body including liquid of the device that produces the pressure difference

162 : The Terminal for input and output 164 : The liquid

165 : li 166 : 1₂ 167 : 1₃

168 : 1₄ 169 : t₄

170 : The fixing body of the equipment that senses the pressure

510 : The electric charging device and the exchanging device of the battery

600 : The button device 610 ~ 650 : The button

710 : The body 710 : The device folded

720 : The adjusting unit 730 : Main box

[Best mode for carrying out the invention]

The Example 1:

Each of D6a and D6b shows a drawing in 3D and section used on the device to produce the pressure change. The device to produce the pressure change is a regular hexahedron and solid in this example and the device to sense is installed on each side of the device to produce the pressure change.

The force of pressure, measured by the device to sense, is showed as follows. D6c and D6d show the force that affects the device to produce the pressure(lOO) change on side and upper surface apart. D6e and D6f are drawings that show the number and the direction of force in the case that the device to produce the pressure change(lOO) is leaned.

[Mathematical formula 1]

F ₁ =mg sinθ sinγ F₂=mg si θcosγ F₃=mg cosθ₂

[Mathematical formula 2]

At this time, the angles of X , Y , Z are related as follows [Mathematical formula 3]

The Example 2 :

There is a drawing of this invention in 3D at D7. The device to produce the pressure change is a big sphere-type solid(125). This is located in a regular hexadron. In this case, the force on each surface of the device to sense(123) is same as the mathematical formula 1 , but the force of pressure is affected partly in section, therefore the proportional constant is needed .(k is between 0 and 1)

[Mathematical formula 4]

The Example 3 : Each of D8a and D8b shows the plane and side surface of this example. The device to produce the pressure change of this example is a small sphere-type solid. The small sphere-type solid can be movable inside of the device to produce the pressure change. The body has below surface that is square like D8b and upper surface that consists of 4 segments of line and 4 circular arcs like D8a. If we divide the body into upper field and downward field, the shape and size is same as upper surface in upper field and the section in downward field has segments of line same as segments of lines in upper field and circular arcs that are nearer to downward, and the shorter continuously. The pressure on 4 axe is same as [Mathematical formula 4].

The Example 4 :

Each of D9a and D9b shows the plane and side surface of this example. The device to produce the pressure change of this example is a big sphere-type solid and liquid located in a regular hexadron. In this case, the pressure sensed in the device that senses the pressure is the number pressured by mass of solid and liquid. The pressure of a big sphere-type solid is same as [Mathematical formula 4] and the pressure of liquid is same as [Mathematical formula 5].

D9c shows the size and direction of pressure. D9d shows the state of leaning of the device to produce the pressure.

[Mathematical formula 5]

P ₁ =t₁gz=(acosθ+2asinθ)gz

P₂ =t₂gz=(acosθ₁+2asinθ₁)gz P₃ =t₃gz=(2acosθ+asinθ+asinθ₁)gz

θ_j^tan^'^tanθtany)

The Example 5 :

Each of D 10a and DlOb shows the plane and side surface of this example. The device to produce the pressure change of this example is a small sphere-type solid located in liquid. The definite shape of body is same as the example 3. In this case, the pressure is divided into the pressure of solid and liquid. The pressure of solid is same as [Mathematical formula 4] and the shape and size is same as upper surface in upper field and the section in downward field has segments of line same as segments of lines in upper field and circular arcs that are nearer to downward, and the shorter continuously. The pressure on 4 axe is same as [Mathematical formula 4].

The Example 4 : Each of F9a and F9b shows the plane and side surface of this example. The device to produce the pressure change of this example is a big sphere-type solid and liquid located in a regular hexadron. In this case, the pressure sensed in the device that senses the pressure is the number pressured by mass of solid and liquid. The pressure of a big sphere-type solid is same as [Mathematical formula 4] and the pressure of liquid is same as [Mathematical formula 5]. F9c shows the size and direction of pressure. F9d shows the state of leaning of the device to produce the pressure.

[Mathematical formula 5]

P _j =t₁gz=(acosθ+2asinθ)gz P₂ =t₂gz=(acosθ₁+2asinθ₁)gz P₃ =t₃gz=(2acosθ+asinθ+asinθ₁)gz

θ_j^tan^'^tanθtanγ)

The Example 5 : Each of F 10a and FlOb shows the plane and side surface of this example. The device to produce the pressure change of this example is a small sphere-type solid located in liquid. The definite shape of body is same as the example 3. In this case, the pressure is divided into the pressure of solid and liquid. The pressure of solid is same as [Mathematical formula 4] and the pressure of liquid is same as [Mathematical formula 6]. Each of F 10c and FlOd shows the side surface of not tilted and tilted device to produce the pressure. [Mathematical formula 6]

t₁=/₂sinθ (θ>θ₁), — /₂ sinθ+— /₂ sinθ _! (θ _L>θ)

_{t =} (/₁cosθ+/₂(-^_ ))X cosθ₁ (θ>θ₁)

sinθ_!

The example 6 : You can refer to Fl la , Fllb and Flic for this example. The device, to produce the pressure change according to this example, consists of only liquid located in a regular hexadron body. The pressure by liquid is same as [Mathematical formula 5]

[ Industrial Applicability ]

The 3D movement data from this device can convert into other devices according to their purpose. Thus, the application field of the device, for measuring the movement of 3D space, can be much more variable. It can be used for PC mouse or Remote controller to control a specific device and the motion tracer in 3D attached to the things that have motion in 3D. For example, the device for motion capture or the device for measuring the attitude to control position can use this invention.

Claims

[ Claims ]

[Claim 1]

The device to produce the pressure change at Z(the axis of gravity),XN(two axis crossing at right angle on the plane perpendicular to gravity) axis by tilting or moving;

The device to sense the pressure from the device to produce the pressure change; the storage device the data from the device to sense the pressure; the processing device that changes the data from the storage device to the relative position data in 3D space; The device to transmit the data from the processing device to the other device;

The invention consists of these devices for measuring the movement in 3D space.

[Claim 2]

In [Claim 1] the data from the device to sense the pressure to the device to process the data is digitalized through A/D converter.

[Claim 3]

In [Claim i] the device, for measuring the movement in 3D space, has the feature to include the device to produce the pressure change(lOO) shaped in a regular cubic.

[Claim 4]

In [Claim 1] the device, for measuring the movement in 3D space, has the feature to include the device to produce the pressure change shaped in sphere-type solid.

[Claim 5]

In [Claim 1] the device, for measuring the movement in 3D space, has the feature to include the device to produce the pressure change which consists of solid and liquid in a regular cubic-type body.

[Claim 6]

In [Claim 1] the device, for measuring the movement in 3D space, has the feature to include the device to produce the pressure change(lOO) which consists of below surface square and upper surface square. The surfaces consist of 4 sides to have the same size of a side of square and 4 arcs to have the same center in outside of body. 4 sides and 4 arcs are connected by shifts to make the closed diagram. Below surface and upper surface have the same center. 4 sides in below surface and 4 sides in upper surface are parallel apart,

The area between upper surface and below surface is divided into the 1st area one-sided downward and the 2nd area one-sided upward. The height of the 2nd area is same as the side of square in below surface. The shape of section in the 2nd area is same as the shape of the below surface. The shape of section in the 1st area is similar to the upper surface and has 4 sides which length is same and parallel each other,

The arctic area on upper side is longer than on lower side, and then there is no arctic area of lower side in the 1st area. The arctic area of upper side in the 1st area is united with the lower side in the 2nd area. There is a sphere-type solid in body.

[Claim 7]

In [Claim 6] the device, for measuring the movement in 3D space, has the feature to include the body of this device which has the liquid in inner space.

[Claim 8]

In [Claim 1] the device, for measuring the movement in 3D space, has the feature to include a regular hexadron body which has liquid in inner space.

[Claim 9]

The process to measure the movement in 3D space includes follows.

The 1st step that senses the pressure by gravity or inertia;

The 2nd step that stores the sensed pressure data;

The 3rd step that conducts the change of position in X-Y surface using the stored pressure data ; The 4th step that conducts the change of position in Z axis using the stored pressure data;

[Claim 10] In [Claim 9] at the 2nd step, the process to measure the movement in 3D space includes followings.

The 1st course is to compare with the stored pressure and the current pressure after sampling the sensed pressure data per regular time;

The 2nd course is to store the current pressure if the difference from the stored pressure and current pressure is less than a certain value, and to ignore the current pressure if the difference from the stored pressure and current pressure is more than a certain value.

[Claim 11]

In [Claim 9] The process to measure the movement in 3D space includes followings.

There are 4 courses to measure the movement in Z-axis.

The 1st course to sense the pressure in Z-axis per regular sampling time;

The 2nd course to convert the acceleration change from the sensed pressure;

The 3rd course to judge the direction after analyzing the pressure change for the 2nd sampling time which is longer than the 1st sampling time;

The 4th course to identify the position change by integral the acceleration for the 2nd sampling time.