ZA200605691B - Dynamic baselining in current modulation-based communication - Google Patents

Dynamic baselining in current modulation-based communication Download PDF

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Publication number
ZA200605691B
ZA200605691B ZA200605691A ZA200605691A ZA200605691B ZA 200605691 B ZA200605691 B ZA 200605691B ZA 200605691 A ZA200605691 A ZA 200605691A ZA 200605691 A ZA200605691 A ZA 200605691A ZA 200605691 B ZA200605691 B ZA 200605691B
Authority
ZA
South Africa
Prior art keywords
talkback
master device
bus
current
command
Prior art date
Application number
ZA200605691A
Other languages
English (en)
Inventor
Teowee Gimtong
David T Jennings Iii
Original Assignee
Special Devices Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Special Devices Inc filed Critical Special Devices Inc
Publication of ZA200605691B publication Critical patent/ZA200605691B/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42Loop networks
    • H04L12/423Loop networks with centralised control, e.g. polling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04Arrangements for ignition
    • F42D1/045Arrangements for electric ignition
    • F42D1/05Electric circuits for blasting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04Arrangements for ignition
    • F42D1/045Arrangements for electric ignition
    • F42D1/05Electric circuits for blasting
    • F42D1/055Electric circuits for blasting specially adapted for firing multiple charges with a time delay
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04Arrangements for ignition
    • F42D1/06Relative timing of multiple charges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/10Current supply arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Small-Scale Networks (AREA)
  • Lubricants (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
ZA200605691A 2003-12-13 2006-07-11 Dynamic baselining in current modulation-based communication ZA200605691B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/736,166 US6988449B2 (en) 2003-07-15 2003-12-13 Dynamic baselining in current modulation-based communication

Publications (1)

Publication Number Publication Date
ZA200605691B true ZA200605691B (en) 2007-11-28

Family

ID=34700444

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200605691A ZA200605691B (en) 2003-12-13 2006-07-11 Dynamic baselining in current modulation-based communication

Country Status (8)

Country Link
US (3) US6988449B2 (de)
EP (1) EP1692822B1 (de)
AT (1) ATE362257T1 (de)
AU (1) AU2004300340B2 (de)
DE (1) DE602004006439T2 (de)
ES (1) ES2285548T3 (de)
WO (1) WO2005060173A1 (de)
ZA (1) ZA200605691B (de)

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US7617775B2 (en) * 2003-07-15 2009-11-17 Special Devices, Inc. Multiple slave logging device
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CA2598836C (en) * 2005-03-18 2014-05-27 Orica Explosives Technology Pty Ltd Wireless detonator assembly, and methods of blasting
AP2534A (en) * 2006-06-09 2012-12-19 Detnet South Africa Pty Ltd Detonator cross-talk reduction
EP1928120B1 (de) * 2006-12-01 2011-06-01 Hager Controls SAS Fernversorgungsbus
AU2008215173B2 (en) * 2007-02-16 2013-05-02 Orica Explosives Technology Pty Ltd Method of communication at a blast site, and corresponding blasting apparatus
PE20090252A1 (es) * 2007-05-15 2009-03-19 Orica Explosives Tech Pty Ltd Detonacion electronica de alta precision
US8446977B2 (en) * 2007-09-12 2013-05-21 Valery Vasilievich Ovchinnikov Method for transmitting discrete electric signals
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EP2350560B1 (de) 2008-10-24 2016-02-17 Battelle Memorial Institute Elektronisches sprengzündersystem
CN102155888B (zh) * 2011-03-21 2012-08-22 南京理工大学 一种微秒级精确延时起爆装置
GB2520315B (en) 2013-11-15 2017-12-06 Babyhappy Ltd Oral Syringes
CA3092838C (en) 2013-12-02 2022-08-30 Austin Star Detonator Company Method and apparatus for wireless blasting
CN105897431A (zh) * 2014-08-20 2016-08-24 北斗国科(北京)科技有限公司 一种新型无极性差分脉宽通讯协议
WO2017083885A1 (en) * 2015-11-09 2017-05-18 Detnet South Africa (Pty) Ltd Wireless detonator
WO2018031244A1 (en) 2016-08-11 2018-02-15 Austin Star Detonator Company Improved electronic detonator, electronic ignition module (eim) and firing circuit for enhanced blasting safety
AU2018309031B2 (en) 2017-08-04 2024-02-08 Austin Star Detonator Company Automatic method and apparatus for logging preprogrammed electronic detonators
US12031417B2 (en) 2018-05-31 2024-07-09 DynaEnergetics Europe GmbH Untethered drone string for downhole oil and gas wellbore operations
US11434713B2 (en) 2018-05-31 2022-09-06 DynaEnergetics Europe GmbH Wellhead launcher system and method
WO2019229521A1 (en) 2018-05-31 2019-12-05 Dynaenergetics Gmbh & Co. Kg Systems and methods for marker inclusion in a wellbore
US11408279B2 (en) 2018-08-21 2022-08-09 DynaEnergetics Europe GmbH System and method for navigating a wellbore and determining location in a wellbore
US11661824B2 (en) 2018-05-31 2023-05-30 DynaEnergetics Europe GmbH Autonomous perforating drone
US11591885B2 (en) 2018-05-31 2023-02-28 DynaEnergetics Europe GmbH Selective untethered drone string for downhole oil and gas wellbore operations
USD903064S1 (en) 2020-03-31 2020-11-24 DynaEnergetics Europe GmbH Alignment sub
US11808098B2 (en) 2018-08-20 2023-11-07 DynaEnergetics Europe GmbH System and method to deploy and control autonomous devices
CN110260736A (zh) * 2019-05-29 2019-09-20 中北大学 一种数据和能量级联的数码电子雷管多级连接器
US11834920B2 (en) 2019-07-19 2023-12-05 DynaEnergetics Europe GmbH Ballistically actuated wellbore tool
US12000267B2 (en) 2021-09-24 2024-06-04 DynaEnergetics Europe GmbH Communication and location system for an autonomous frack system

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US4674047A (en) 1984-01-31 1987-06-16 The Curators Of The University Of Missouri Integrated detonator delay circuits and firing console
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Also Published As

Publication number Publication date
ES2285548T3 (es) 2007-11-16
EP1692822B1 (de) 2007-05-09
WO2005060173A1 (en) 2005-06-30
AU2004300340A1 (en) 2005-06-30
DE602004006439D1 (de) 2007-06-21
DE602004006439T2 (de) 2008-01-10
US7347145B2 (en) 2008-03-25
US7464647B2 (en) 2008-12-16
EP1692822A1 (de) 2006-08-23
AU2004300340B2 (en) 2009-12-10
US20060266246A1 (en) 2006-11-30
US20050011389A1 (en) 2005-01-20
US20060219122A1 (en) 2006-10-05
ATE362257T1 (de) 2007-06-15
US6988449B2 (en) 2006-01-24

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