Microwave Holography : وصناعة الشبكات محور

وتطورها المعرفة

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Wireless Three Dimensional Microwave Holographic Input Device

(3DMI-HOPE)

A. Prof. Hala Abdel-monem Elsadek Microstrip Department Head, Electronics Research Institute

Institute /Company: Electronics Research Institute lDecember 2011

Building a 3D input pointer that allows the reconstruction of 3D image in space

Objective:

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Presentation Guidelines Technology Description Team Status Markets and Market Interest Competition Development Status Intellectual Property IP Status Risks and Barriers Team Status

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Technology Description

Electromagnetic Novel 3D input system (3DMI-HOPE) that allows users to intuitively specify three-dimensional (3D) coordinates in space and save it in digital memory.◦ Building a 3D input pointer that allows the reconstruction of 3D image in space

The proposed device utilized an electromagnetic technology(microwave holography) for recording the image in high accuracy without any assistive tools.

3D graphics hardware and rendering systems capable of offering applications in truly 3D interactive.

What is the technology?

Design and manufacture of the laboratory prototype of a microwave 3D input device that is capable of capture 3D coordinates of points in the reconstruction space and save it in digital memory.

Investigate, design, analyze, fabricate and measurement of new shapes of compact smart MIMO antenna array hologram recording process. 

Design and test the real time reconstruction of a recorded object hologram for real time applications. 

Design and test the innovative 3DMI-HOPE editing accuracy at standards operational frequencies of communications at Bluetooth ISM band and 802.11b WLAN standard.

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What does the technology do?

September 9, 2010

Technology Applications The applications for a 3D input device ranges over the:

◦ non-immersive VR systems as in new user interface, web browsers, computer-aided design and manufacture,

◦ computer simulation, ◦ tele-robotics,◦ aerospace,◦ education and training, ◦ scientific data visualization, and◦ medical industry.

This output 3D MI-HOPE prototype will have impact on different fields of science as mainly in:◦ telemedicine and tele-robotics where entering, storing, sending and

manipulating 3D data information with proper accuracy rendering important assistance.

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Development Status1. 3D MI-HOPE is a verified Concept only

System sub-components are in rough prototypes but not integrated together:2. MIMO smart microstrip antenna array system3. System hardware construction4. Software/hardware of ray-tracing reconstruction

Project development status5. System integration (system hardware and software) chip6. Laboratory prototype (packaging), Testing and comparison with simulated

results7. Re-engineering and calibration procedures for proper accuracy and

Industrial prototype suggestion.8

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3D graphic program to represent the intensity

of position (x,y,z) of the VI

) Object( point location

in space (x,y,z)

)or multipoint separated by(

Microwave image generation

Reconstruction of virtual image of

the object

Antenna array size operating frequency

Antenna inter-element distance

Object image

data)amp+p

hase(

Reconstruction volume = Cube of side equal to

antenna size

Virtual Image

) VI(

operating frequency

) a(

Overview of system stages in Block diagram (b) Output of each stage

)b(

2D presentation for VI 3D presentation for VI One point hologram Object

)

Technology Description

System Construction

11

)CPU & monitor(

3D graphic facility to

draw 3D object

point by point (10)

RS232/D

Object Signal

Working Volume

Object scattered

modulated signal

) 6(

Operator’s hand switch (3)

User hand unit(1)

Modulated scattering diode (2)

MxM Array of microstrip

antenna (5)

Computer interface unit (7)

Data

Acquisition system

Panel unit (6)

Illuminating unit

3 orthogonal dipole antennas (4)

Software driver (reconstruction

algorithm built on ray tracing)

) 8(

Hardware driver (special purpose

machine for reconstruction

) 9(

OR

Holo3D pointer Card (11)

Digital interfaceADC

3DMI-HOPE editing system in sub-component level

Wireless user hand unit The pointer’s pad plate unit The panel unit

System Units

Wireless user hand unit

It consists of 3 orthogonal dipole antennas modulating diode at low frequency (1kHz) power supply feed (battery) mechanical switch

Wireless user hand unit

The pointer’s pad plate unit

It consists of It consists of MxM receiving multiple input-multiple

output (MIMO) microstrip antenna array, strip lines feed

Pointer’s pad plate unit

The panel unit

It consists of AD8302 as an amplitude and phase detector The IC ADC0808 acts as an Analog to Digital Converter The ADC converters are the coordinate identification The (ECL10164) acts a 1x8 multiplexers Atmel AT89X52 microcontroller that can be connected to

the PC computer via the RS232 protocol.

The panel unit

Intellectual Property IP Status The 3D MI-HOPE is reserved by National patent

No. EPO 24614, date:16-Feb. 2010 And PCT application No. EPO 24616

int.CIG06F3/00 ERI is the owner of the patent Project PI is the inventor Contract between PI and ERI for marketing rights

(50%) each

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Risks and Barriers Unavailability of some RF electronic components in

local market. (importing-Computek, Re-design system using all components in local market)

Problems in system components (Sub-systems)integration (re-engineering)

High noise levels received from reflections from normal surrounding obstacles in reconstruction space (filtering procedures)

Budget flow to purchase the required component, material and supplies in scheduled timing.

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