CA2279694A1 - Seismic telemetry system - Google Patents

Seismic telemetry system Download PDF

Info

Publication number
CA2279694A1
CA2279694A1 CA002279694A CA2279694A CA2279694A1 CA 2279694 A1 CA2279694 A1 CA 2279694A1 CA 002279694 A CA002279694 A CA 002279694A CA 2279694 A CA2279694 A CA 2279694A CA 2279694 A1 CA2279694 A1 CA 2279694A1
Authority
CA
Canada
Prior art keywords
sensor
base station
transmitting
data
information
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002279694A
Other languages
French (fr)
Other versions
CA2279694C (en
Inventor
James Iseli
Lawrence P. Behn
Thomas G. Leete
Kambiz Afkami
Thomas Buie
John E. Barnett, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ion Geophysical Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2279694A1 publication Critical patent/CA2279694A1/en
Application granted granted Critical
Publication of CA2279694C publication Critical patent/CA2279694C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/22Transmitting seismic signals to recording or processing apparatus
    • G01V1/223Radioseismic systems

Abstract

A system for remotely controlling, acquiring and monitoring the acquisition of seismic data. The system includes remote equipment for collecting seismic data and for transmitting and receiving communication signals to and from a remote location. The system also includes local equipment for transmitting and receiving communication signals to and from the remote location. In this manner, the collection of seismic data at remote locations can be controlled and monitored locally.

Claims (26)

1. A method of dividing up a communication channel for use in a seismic acquisition system having M base stations and N sensors, comprising:
dividing up the communication channel into M frequency bands; and dividing up each frequency band into N+1 time slots.
2. A method of dividing up a communication channel for use in a seismic acquisition system, comprising:
dividing up the communication channel into time slots including signaling and status bits, seismic information, and guard time.
3. A method of transmitting information from a sensor to a base station in a seismic acquisition system, comprising:
listening for an open time slot, frequency, and sector;
requesting use of the available time slot from the base station;
if the base station is operating at full capacity, then reducing the overall data for the base station; and if the base station is not operating at full capacity, then capturing the open time slot and transmitting to the base station.
4. A method of error correction in a communication system for a seismic acquisition system including a sensor and a base station, comprising:
transmitting data from the sensor to the base station; and if the data includes errors, then retransmitting the data.
5. A method of error correction in a communication system for a seismic acquisition system including a sensor and a base station, comprising:
Page 61 of 69 transmitting data from the sensor to the base station; and if the data includes errors, then requesting retransmission of the data.
6. A method of error correction in a communication system for a seismic acquisition system including a sensor and a base station, comprising:
transmitting data from the sensor to the base station;
if the data includes errors, then retransmitting during non-active time.
7. A method of transmitting information in a communication channel in a seismic acquisition system including a plurality of sensors positioned at different distance from a base station, comprising:
transmitting information from one of the sensors to the base station;
if the sensor is a nearby sensor, then adjusting the modulation in the communication channel to increase the data density.
8. A method of transmitting information from a sensor to a base station in a seismic acquisition system having a plurality of communication channels, comprising:
selecting a channel for transmission from the sensor to the base station;
if no channels are available, then waiting until a channel is available;
if the selected channel is available, then transmitting the information from the sensor to the base station;
if the selected channel is impaired, then selecting another channel;
if all of the information has not been properly transmitted, then adjusting to a lower order modulation and transmitting a request for retransmission from the base station to the sensor;
and Page 62 of 69 if all of the information has been properly transmitted, then adjusting to a lower order modulation and transmitting control information from the base station to the sensor.
9. A base station for use in a seismic acquisition system, comprising:
a transceiver;
one or more diversity antennas; and one or more directional antennas.
10. A method of selecting an antenna for transmitting information in a seismic acquisition system having a plurality of antennas, comprising:
determining the data density for each antenna;
selecting the optimum antenna for transmitting information;
transmitting the information using the selected optimum antenna; and subsequently receiving information using the selected optimum antenna.
11. A seismic acquisition system, comprising:
one or more sensors adapted to sense conditions and generate signals representative of the sensed conditions including a memory for storing the signals;
a base station operably coupled to the sensors for receiving and transmitting the signals including a memory for storing the signals; and a recorder operably coupled to the base station for storing the signals.
12. A method of communicating in a seismic acquisition system having sensors, base stations and a recorder, comprising:
storing data in the sensors;
Page 63 of 69 transmitting data from the sensors to the base stations;
storing data in the base stations; and transmitting data from the base stations to the recorder.
13. A seismic acquisition system, comprising:
one or more sensors adapted to sense conditions and transmit signals representative of the sensed conditions;
one or more base stations operably coupled to the sensors adapted to receive and transmit the signals; and a recorder operably coupled to the sensors and the base stations adapted to receive the signals and transmit control information to the sensors.
14. A seismic acquisition system, comprising:
a plurality of rows of sensor stations for sensing conditions and transmitting signals representative of the sensed conditions;
a plurality of base stations coupled to the rows of sensor stations for receiving and transmitting the signals; and a recorder operably coupled to the base stations for receiving the signals.
15. A wireless master sensor station, comprising:
a transceiver for transmitting and receiving information including a directional antenna;
a control module coupled to the transceiver for monitoring and controlling the operation of the wireless master sensor station;
and a sensor module coupled to the control module for sensing conditions and generating signals representative of the sensed conditions.
Page 64 of 69
16. A sensor assembly, comprising:
a wireless master sensor station, including:
a transceiver for transmitting and receiving information including a directional antenna;
a control module coupled to the transceiver for monitoring and controlling the operation of the wireless master sensor station; and a sensor module coupled to the control module for sensing conditions and generating signals representative of the sensed conditions; and one or more slave sensor stations operably coupled to the wireless master sensor station, including:
a sensor module sensing conditions and generating signals representative of the sensed conditions.
17. A twisted pair sensor station, comprising:
a sensor coupling module for coupling the sensor station to a wireline connection;
a control module coupled to the sensor coupling module for monitoring and controlling the operation of the sensor station; and a sensor module coupled to the control module for sensing conditions and generating signals representative of the sensed conditions.
18. A sensor assembly, comprising:
a plurality of twisted pair sensor stations operably coupled to one another, each twisted pair sensor station including:
a sensor coupling module for coupling the sensor station to a wireline connection;
Page 65 of 69 a control module coupled to the sensor coupling module for monitoring and controlling the operation of the sensor station; and a sensor module coupled to the control module for sensing conditions and generating signals representative of the sensed conditions.
19. A picocell base station, including:
a first cellular transceiver including a first antenna;
a second cellular transceiver including a second antenna;
a third cellular transceiver including a third antenna;
a radio transceiver including a radio antenna;
a control module coupled to the first, second and third cellular transceivers and the radio transceiver;
a first wireline interface coupled to the control module;
a second wireline interface coupled to the control module; and a third wireline interface coupled to the control module.
20. A picocell, including:
a first group of wireless master sensor stations adapted to collect and transmit data;
a second group of wireless master sensor stations adapted to collect and transmit data; and a picocell base station coupled to the first and second group of wireless master sensor stations adapted to receive the data from the wireless master sensor stations and transmit it to an external device.
Page 66 of 69
21. A seismic acquisition system, comprising:
a plurality of rows of picocells, each picocell adapted to collect and transmit data; and a controller coupled to the picocells adapted to control and monitor the picocells and receive data from the picocells.
22. A method of communicating information between a base station and a plurality of sensors in a seismic acquisition system, comprising:
dividing the sensors into first and second groups of sensors;
transmitting information from the base station to the first group of sensors using a first communication channel;
transmitting information from the base station to the second groups of sensors using a second communication channel; and transmitting information from the base station to the first and second groups of sensors using a third communication channel.
23. A method of transmitting packets of information from sensors to a base station in a seismic acquisition system using a communication channel, comprising:
dividing the communication channel into a plurality of time slots including time slots for each of the sensors;
wherein each sensor time slot includes time slots for transmission of the sensor identification, the sensor status, the information packet number, the information, and error detection information for the transmitted information.
24. A seismic acquisition system, comprising:
a plurality of rows of picocells for collecting and transmitting data;
a plurality of multiplexers coupled to the rows of picocells; and Page 67 of 69 a controller coupled to the multiplexers and the picocells for recording the data, and monitoring and controlling the picocells.
25. A seismic acquisition system, comprising:
a first pico cell for collecting and transmitting data;
a second pico cell for collecting and transmitting data;
a multiplexer coupled to the first and second pico cells; and a controller coupled to the first and second pico cells and the multiplexer for monitoring and controlling the picocells and collecting and recording the data.
26. A seismic acquisition system, comprising:
a plurality of pico cells having data storage; and a controller coupled to the pico cells.
Page 68 of 69
CA002279694A 1998-08-07 1999-08-06 Seismic telemetry system Expired - Fee Related CA2279694C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9569698P 1998-08-07 1998-08-07
US9579298P 1998-08-07 1998-08-07
US60/095,792 1998-08-07
US60/095,696 1998-08-07

Publications (2)

Publication Number Publication Date
CA2279694A1 true CA2279694A1 (en) 2000-02-07
CA2279694C CA2279694C (en) 2009-12-29

Family

ID=26790503

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002279694A Expired - Fee Related CA2279694C (en) 1998-08-07 1999-08-06 Seismic telemetry system

Country Status (5)

Country Link
US (2) US7218890B1 (en)
EP (1) EP0978733A3 (en)
JP (1) JP2000098045A (en)
CA (1) CA2279694C (en)
NO (1) NO333403B1 (en)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8480580B2 (en) 1998-04-30 2013-07-09 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US8688188B2 (en) 1998-04-30 2014-04-01 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US9066695B2 (en) 1998-04-30 2015-06-30 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US8465425B2 (en) 1998-04-30 2013-06-18 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US20080076997A1 (en) * 1998-04-30 2008-03-27 Abbott Diabetes Care, Inc. Analyte monitoring device and methods of use
US8346337B2 (en) 1998-04-30 2013-01-01 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US8974386B2 (en) 1998-04-30 2015-03-10 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use
US6949816B2 (en) * 2003-04-21 2005-09-27 Motorola, Inc. Semiconductor component having first surface area for electrically coupling to a semiconductor chip and second surface area for electrically coupling to a substrate, and method of manufacturing same
US6175752B1 (en) 1998-04-30 2001-01-16 Therasense, Inc. Analyte monitoring device and methods of use
US6580751B1 (en) * 2000-02-01 2003-06-17 Halliburton Energy Services, Inc. High speed downhole communications network having point to multi-point orthogonal frequency division multiplexing
US6630890B1 (en) * 2000-09-22 2003-10-07 Schlumberger Technology Corporation Methods, systems and tools for borehole logging
US7346347B2 (en) 2001-01-19 2008-03-18 Raze Technologies, Inc. Apparatus, and an associated method, for providing WLAN service in a fixed wireless access communication system
US20090111457A1 (en) 2007-10-31 2009-04-30 Raze Technologies, Inc. Wireless communication system and device for coupling a base station and mobile stations
US20070205891A1 (en) * 2000-12-20 2007-09-06 Spencer David F Network enabled radiation detection systems, methods of monitoring radiation, and network enabled radiation monitoring systems
US6560471B1 (en) 2001-01-02 2003-05-06 Therasense, Inc. Analyte monitoring device and methods of use
US20060009911A1 (en) * 2002-04-24 2006-01-12 Ascend Geo, Llc Methods and systems for acquiring and processing seismic data
US7668044B2 (en) * 2002-04-24 2010-02-23 Ascend Geo, Llc Data offload and charging systems and methods
GB2395630B (en) 2002-11-22 2007-08-22 Westerngeco Seismic Holdings Seismic acquisition system
US7813221B2 (en) 2002-11-22 2010-10-12 Westerngeco L.L.C. Sensor and recorder communication
AU2003303597A1 (en) 2002-12-31 2004-07-29 Therasense, Inc. Continuous glucose monitoring system and methods of use
DE10325374A1 (en) * 2003-05-27 2004-12-16 Valeo Schalter Und Sensoren Gmbh Electronic system with sensors
US7310287B2 (en) 2003-05-30 2007-12-18 Fairfield Industries Incorporated Method and apparatus for seismic data acquisition
US7124028B2 (en) 2003-11-21 2006-10-17 Fairfield Industries, Inc. Method and system for transmission of seismic data
US8228759B2 (en) 2003-11-21 2012-07-24 Fairfield Industries Incorporated System for transmission of seismic data
US8600920B2 (en) * 2003-11-28 2013-12-03 World Assets Consulting Ag, Llc Affinity propagation in adaptive network-based systems
EP1718198A4 (en) * 2004-02-17 2008-06-04 Therasense Inc Method and system for providing data communication in continuous glucose monitoring and management system
US8238199B2 (en) * 2005-10-07 2012-08-07 Wireless Seismic, Inc. Wireless exploration seismic system
US8170802B2 (en) * 2006-03-21 2012-05-01 Westerngeco L.L.C. Communication between sensor units and a recorder
US20070268127A1 (en) * 2006-05-22 2007-11-22 Motorola, Inc. Wireless sensor node data transmission method and apparatus
WO2008042774A2 (en) 2006-09-29 2008-04-10 Ion Geophysical Corporation Seismic data acquisition systems and methods for managing messages generated by field units
US7894301B2 (en) * 2006-09-29 2011-02-22 INOVA, Ltd. Seismic data acquisition using time-division multiplexing
US8605546B2 (en) * 2006-09-29 2013-12-10 Inova Ltd. Seismic data acquisition systems and method utilizing a wireline repeater unit
US8077740B2 (en) * 2007-02-01 2011-12-13 INOVA, Ltd. Apparatus and method for reducing noise in seismic data
US20080199894A1 (en) 2007-02-15 2008-08-21 Abbott Diabetes Care, Inc. Device and method for automatic data acquisition and/or detection
CA2683721C (en) 2007-04-14 2017-05-23 Abbott Diabetes Care Inc. Method and apparatus for providing dynamic multi-stage signal amplification in a medical device
US8665091B2 (en) 2007-05-08 2014-03-04 Abbott Diabetes Care Inc. Method and device for determining elapsed sensor life
US8456301B2 (en) 2007-05-08 2013-06-04 Abbott Diabetes Care Inc. Analyte monitoring system and methods
EP2034336A1 (en) * 2007-09-07 2009-03-11 Vibration Technology Limited Data transmission system
DE102007051605A1 (en) * 2007-10-23 2009-04-30 Siemens Ag Radio communication system, coordinator device and communication terminal
US20100128565A1 (en) * 2008-11-23 2010-05-27 Daniel Golparian Wireless communication using customized wifi in a survey data acquisition system
US20100208551A1 (en) * 2009-02-13 2010-08-19 Daniel Golparian Configuring wireless seismic acquisition networks
WO2011026147A1 (en) 2009-08-31 2011-03-03 Abbott Diabetes Care Inc. Analyte signal processing device and methods
US20110096628A1 (en) * 2009-10-26 2011-04-28 Daniel Golparian Wireless Communication Using Customized Digital Enhanced Cordless Telecommunications (DECT) Technology in a Survey Data Acquisition System
US20130170450A1 (en) * 2011-12-29 2013-07-04 Qualcomm Incorporated Wireless broadcast/multicast service capacity over different link budgets and overlay networks
GB2514047B (en) 2012-03-08 2016-05-11 Shell Int Research Seismic cable handling system and method
CA3118864C (en) * 2012-03-08 2022-11-29 Shell Internationale Research Maatschappij B.V. Integrated seismic monitoring system and method
US9816370B2 (en) * 2012-09-19 2017-11-14 Honeywell International Inc. System and method for optimizing an operation of a sensor used with wellbore equipment
US10180510B2 (en) * 2013-02-08 2019-01-15 Wireless Seismic, Inc. Multiplexing signature allocation for wireless exploration system
JP6055333B2 (en) * 2013-02-13 2016-12-27 シャープ株式会社 Wireless communication system
US9173181B1 (en) * 2013-07-24 2015-10-27 Sprint Communications Company L.P. Adapter that converts precision time protocol (PTP) to global positioning system (GPS)
WO2015041850A1 (en) 2013-09-19 2015-03-26 Conocophillips Company Method for synchronizing continuous seismic survey
US10593188B2 (en) * 2016-04-13 2020-03-17 Arian Shoari Apparatus and methods for hygiene monitoring in restaurants and grocery superstores
US10880881B2 (en) 2018-05-15 2020-12-29 King Fahd University Of Petroleum And Minerals Systems and methods for collision prevention and power conservation in wireless networks
US10623692B2 (en) * 2018-07-13 2020-04-14 Analog Devices Global Unlimited Company High definition analog video and control link for automotive applications
CN109101615B (en) * 2018-08-07 2021-03-30 中国石油天然气集团有限公司 Seismic exploration data processing method and device
EP3899594B1 (en) * 2019-01-14 2024-03-06 Reflection Marine Norge AS Macro compressed sensing data acquisition
CN110784243A (en) * 2019-12-04 2020-02-11 新疆额尔齐斯河流域开发工程建设管理局 Mountain reservoir seismic table network spread spectrum microwave data transmission system based on wireless networking
US11027656B1 (en) 2019-12-10 2021-06-08 Texas Instruments Incorporated Flexible hub for handling multi-sensor data

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700753A (en) * 1948-06-28 1955-01-25 Phillips Petroleum Co Method of and apparatus for seismic prospecting
US3283295A (en) * 1963-10-18 1966-11-01 Phillips Petroleum Co Radio seismic system
US3604004A (en) * 1969-02-10 1971-09-07 Edward M Buyer Dual frequency radio apparatus for data transmission and direction finding
US3806864A (en) * 1972-10-16 1974-04-23 Amoco Prod Co Cableless seismic digital recording system
US3886494A (en) * 1972-11-13 1975-05-27 Exxon Production Research Co System for gathering and recording seismic signals
US3900825A (en) * 1973-10-24 1975-08-19 Texaco Inc Vibrator-type reflection seismic surveying
US3990036A (en) * 1974-02-28 1976-11-02 Western Geophysical Co. Multiplexing method and apparatus for telemetry of seismic data
US4066993A (en) * 1976-11-08 1978-01-03 Western Geophysical Company Of America Limited-range seismic control system
US4493063A (en) * 1978-10-30 1985-01-08 Phillips Petroleum Company Method and apparatus for seismic geophysical exploration
US4638480A (en) * 1979-04-24 1987-01-20 Standard Telephones & Cables Public Limited Company Distributed digital signal multiplexing
FR2511772A1 (en) * 1981-08-24 1983-02-25 Inst Francais Du Petrole DEVICE FOR SEQUENTIALLY TRANSMITTING RADIO OR CABLE SIGNALS BETWEEN A CENTRAL CONTROL SYSTEM AND DATA ACQUISITION APPARATUSES
US4521893A (en) * 1983-04-21 1985-06-04 The Unites States Of America As Represented By The Secretary Of The Air Force Clock distribution circuit for active aperture antenna array
FR2599533B1 (en) 1986-05-30 1988-11-04 Inst Francais Du Petrole SEISMIC SIGNAL TRANSMISSION SYSTEM USING RADIO RELAYS
FR2608780B1 (en) * 1986-12-23 1989-05-19 Inst Francais Du Petrole METHOD OF TRANSMISSION TO A CENTRAL DEVICE FOR RECORDING SEISMIC DATA COLLECTED BY ACQUISITION DEVICES DISTRIBUTED ON THE GROUND AND DEVICE FOR IMPLEMENTING IT
FR2616230B1 (en) * 1987-06-04 1990-12-14 Inst Francais Du Petrole SYSTEM FOR THE ACQUISITION AND RECORDING OF SIGNALS PROVIDED BY A SET OF SENSORS ARRANGED IN WELL PROBES
FR2627652B1 (en) 1988-02-19 1990-10-26 Inst Francais Du Petrole SEMI-SEQUENTIAL TRANSMISSION METHOD AND SYSTEM USING SIMULTANEOUSLY MULTIPLE RADIO TRANSMISSION FREQUENCIES TO CONNECT A SEISMIC RECEPTION ASSEMBLY TO A CENTRAL CONTROL AND RECORDING LABORATORY
US4967400A (en) 1988-02-26 1990-10-30 Syntron, Inc. Digital marine seismic system
US5303240A (en) * 1991-07-08 1994-04-12 Motorola, Inc. Telecommunications system using directional antennas
US5200930A (en) 1992-01-24 1993-04-06 The Laitram Corporation Two-wire multi-channel streamer communication system
FR2696839B1 (en) 1992-10-12 1994-12-09 Inst Francais Du Petrole Method and system of seismic transmission using concentration units.
ATE145496T1 (en) * 1992-10-19 1996-12-15 Northern Telecom Ltd ANTENNA DEVICE FOR BASE STATION
US5696903A (en) * 1993-05-11 1997-12-09 Norand Corporation Hierarchical communications system using microlink, data rate switching, frequency hopping and vehicular local area networking
US6088590A (en) * 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US5594720A (en) * 1993-11-24 1997-01-14 Lucent Technologies Inc. Multiple access cellular communication with dynamic slot allocation and reduced co-channel interferences
US5625885A (en) * 1993-12-15 1997-04-29 Fujitsu Limited Mobile communication system having pagers for providing two-way data communication between a base station and mobile stations
FR2720518B1 (en) * 1994-05-26 1996-07-12 Inst Francais Du Petrole Seismic acquisition and transmission system with decentralization of functions.
US5818385A (en) * 1994-06-10 1998-10-06 Bartholomew; Darin E. Antenna system and method
US5742593A (en) * 1995-08-29 1998-04-21 Hazeltine Corporation On-line distributed TDMA/FDMA/CDMA link assignment in mobile radio networks with flexible directivity
GB2310972B (en) * 1996-03-07 2000-06-14 Motorola Ltd Communication system and operating method thereof
US6512481B1 (en) * 1996-10-10 2003-01-28 Teratech Corporation Communication system using geographic position data
ES2205187T3 (en) 1996-10-23 2004-05-01 Vibration Technology Limited SISMIC ACQUISITION SYSTEM USING WIRELESS TELEMETRY.
US5930293A (en) * 1997-03-10 1999-07-27 Lucent Technologies Inc. Method and apparatus for achieving antenna receive diversity with wireless repeaters
FR2766580B1 (en) * 1997-07-24 2000-11-17 Inst Francais Du Petrole METHOD AND SYSTEM FOR TRANSMITTING SEISMIC DATA TO A REMOTE COLLECTION STATION
AU1443099A (en) * 1997-12-17 1999-07-05 Schlumberger Holdings Limited Seismic data acquisition radio antenna
US6240094B1 (en) * 1997-12-22 2001-05-29 Bell Atlantic Network Services, Inc. Statistical time division multiplexer for a wireless asymmetric local loop communication system
US6226601B1 (en) * 1998-05-15 2001-05-01 Trimble Navigation Limited Seismic survey system

Also Published As

Publication number Publication date
EP0978733A3 (en) 2002-10-16
NO993814D0 (en) 1999-08-06
JP2000098045A (en) 2000-04-07
NO333403B1 (en) 2013-05-27
EP0978733A2 (en) 2000-02-09
NO993814L (en) 2000-02-08
US20050259514A1 (en) 2005-11-24
CA2279694C (en) 2009-12-29
US7613071B2 (en) 2009-11-03
US7218890B1 (en) 2007-05-15

Similar Documents

Publication Publication Date Title
CA2279694A1 (en) Seismic telemetry system
AU615779B2 (en) Long range multiple point wireless control and monitoring system
CN1913402B (en) Intelligent method for detecting antenna fault
US4905205A (en) Method for transmitting to a central recording device seismic data collected by acquisition apparatus distributed over the ground and a device for implementing same
CN100394731C (en) Detecting interference between neighboring basic service sets in a wireless local area network
US8791834B2 (en) Fixed network for an automatic utility meter reading system
US7813221B2 (en) Sensor and recorder communication
US8217803B2 (en) Wireless data acquisition network and operating methods
US20040101037A1 (en) Method and apparatus for bandwidth and frequency management in the U-NII band
EP0926916A3 (en) Spatial division multiple access wireless communication systems
WO2002032000A8 (en) Method and apparatus employing a remote wireless repeater for calibrating a wireless base station having an adaptive antenna array
US20100128565A1 (en) Wireless communication using customized wifi in a survey data acquisition system
US8179880B2 (en) Wireless communication method and wireless communication system
US9128202B2 (en) Wireless data acquisition network and operating methods
CN102647736B (en) A kind of status information of equipment obtains system and communication means
EP1995609B1 (en) Seismic data acquisition
US20110096628A1 (en) Wireless Communication Using Customized Digital Enhanced Cordless Telecommunications (DECT) Technology in a Survey Data Acquisition System
EP2334125A1 (en) Transmission power control method, mobile communication system, and wireless base station
JPH07231483A (en) Radio data communication system
EP1739851A1 (en) Radio communication control apparatus and radio communication system
WO1999023768A1 (en) Radio repeater
JPH0425736B2 (en)
CN104579616A (en) Multi-antenna multichannel multisite aggregated parallel polling method
US8134933B2 (en) Quality channel reporting in a time division system
Lukac et al. In vivo characterization of a wide area 802.11 b wireless seismic array

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170807