Title:
REAL TIME CONTROL OF HARDWARE AND SOFTWARE VIA COMMUNICATIONS NETWORK
Document Type and Number:
WIPO Patent Application WO2003044609
Kind Code:
A3
Abstract:
A Hard Real Time Control Center (HRTCC), comprised of hardware, software and firmware, with time synchronisation and time delay compensation methodologies that allows Application Hardware and/or User Input Devices to be networked together on any communications network as if there were negligible network delays in the system, is disclosed. This will allow Application Hardware and/or User Input Devices (connected to an HRTCC at one location (node) on the network) to control or operate Application Hardware and/or User Input Devices connected to another HRTCC at a remote location without the detrimental effects of network time delays. The time synchronisation of the various HRTCCs on the network can be enabled using hardware (e.g. a global positioning system (GPS)) or any other software method (e.g. Network Time Protocol). Using time stamps from the time synchronisation, the time delay of the signals (data) transferred over the network can be determined. The main embodiment of the time delay compensation methodology is an estimator/predictor algorithm. The estimator generates signal information that allows the predictor, using the time delay, to project the signal information characteristics into the future by an amount equal to the time delay. If this predicted signal is used rather than the delayed signal, there will be no readily apparent time delay in the system thereby significantly improving the stability and performance of the associated application. Any software architecture can be used such as servant-client, token ring or peer to peer.
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Inventors:
WANG DAVID (CA)
SHU JOSEPH (CA)
NI LIYA (CA)
ROSSI MAURO (CA)
TUER KEVIN (CA)
SHU JOSEPH (CA)
NI LIYA (CA)
ROSSI MAURO (CA)
TUER KEVIN (CA)
Application Number:
PCT/CA2002/001833
Publication Date:
February 05, 2004
Filing Date:
November 21, 2002
Export Citation:
Assignee:
HANDSHAKE INTERACTIVE TECHNOLO (CA)
WANG DAVID (CA)
SHU JOSEPH (CA)
NI LIYA (CA)
ROSSI MAURO (CA)
TUER KEVIN (CA)
WANG DAVID (CA)
SHU JOSEPH (CA)
NI LIYA (CA)
ROSSI MAURO (CA)
TUER KEVIN (CA)
International Classes:
G05B13/02; G05B19/042; H04L12/56; (IPC1-7): G05B19/042; B25J9/16; H04L29/06; A63F13/12
Domestic Patent References:
| WO2000050974A2 | 2000-08-31 | |||
| WO1998014886A1 | 1998-04-09 |
Foreign References:
| US6144884A | 2000-11-07 |
Other References:
HIRZINGER G ET AL: "Telerobotics with large time delays-the ROTEX experience", INTELLIGENT ROBOTS AND SYSTEMS '94. 'ADVANCED ROBOTIC SYSTEMS AND THE REAL WORLD', IROS '94. PROCEEDINGS OF THE IEEE/RSJ/GI INTERNATIONAL CONFERENCE ON MUNICH, GERMANY 12-16 SEPT. 1994, NEW YORK, NY, USA,IEEE, 12 September 1994 (1994-09-12), pages 571 - 578, XP010141799, ISBN: 0-7803-1933-8
DIOT C ET AL: "A DISTRIBUTED ARCHITECTURE FOR MULTIPLAYER INTERACTIVE APPLICATIONSON THE INTERNET", IEEE NETWORK, IEEE INC. NEW YORK, US, July 1999 (1999-07-01), pages 6 - 15, XP000875024, ISSN: 0890-8044
DIOT C ET AL: "A DISTRIBUTED ARCHITECTURE FOR MULTIPLAYER INTERACTIVE APPLICATIONSON THE INTERNET", IEEE NETWORK, IEEE INC. NEW YORK, US, July 1999 (1999-07-01), pages 6 - 15, XP000875024, ISSN: 0890-8044
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