WO2005036897A2 - Synchronizing rf system - Google Patents
Synchronizing rf system Download PDFInfo
- Publication number
- WO2005036897A2 WO2005036897A2 PCT/US2004/028698 US2004028698W WO2005036897A2 WO 2005036897 A2 WO2005036897 A2 WO 2005036897A2 US 2004028698 W US2004028698 W US 2004028698W WO 2005036897 A2 WO2005036897 A2 WO 2005036897A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- receiver
- periodic
- transmitter
- data
- wake
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/08—Speed or phase control by synchronisation signals the synchronisation signals recurring cyclically
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0079—Receiver details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0079—Receiver details
- H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates generally to synchronizing Radio Frequency (RF) methods and systems, and more particularly pertains to synchronizing RF methods and systems designed to extend the battery lifetime of battery powered RF receivers, particularly those operating in bands wherein the transmitter duty cycle is restricted.
- RF Radio Frequency
- the technique of transmitting periodic data messages and periodically waking a battery powered receiver to receive the periodic data messages is generally known in the art, and is used in RF communication systems wherein a battery or line powered transmitter transmits periodic messages to a battery powered receiver to extend the battery life in the receiver.
- the present invention provides a synchronizing method and system between a Radio Frequency (RF) transmitter and receiver wherein the transmitter transmits short duration first periodic sync signals which are received and used by the receiver to maintain proper synchronization of the receiver with the transmitter during second periodic wake-up windows for transmission of data, such that the receiver will wake and be properly synchronized for possible wake up window data transmissions from the transmitter.
- the receiver walces for a short duration at the start of each periodic wake up window to receive a possible transmission of data, and if no transmission is received goes back to sleep, and if a transmission is received stays awake to receive the full transmission of data.
- the basic principle is that the average current consumed by the battery powered receiver in order to wake periodically to receive the first periodic sync signals to maintain synchronization and to wake periodically to listen for the possible second periodic data transmissions is less than the average current required to maintain the receiver awake continuously.
- FIG. 1 illustrates one application of the present invention in a security alarm system 10, such as an Ademco security alarm system, wherein an AC powered control panel 12, such as an Ademco QuikmateTM control panel, is located within a building protected by the security alarm system.
- the control panel may provide a local display of all pertinent parameters and conditions of the security alarm system, and may also provide inputs, such as a Graphical User Interface (GUI) 12, to allow a user to enter data into and access and control the security alarm system.
- GUI Graphical User Interface
- the control panel can also include a local RF transmitter 16 which transmits over an antenna 18 periodic RF messages from 20 on the present status of the security alarm system to a plurality of battery powered wireless keypads or Reduced Display Modules (RDMs) 22, only one of which RDM1 is illustrated in detail, provided at a plurality of locations throughout the building.
- RDMs Reduced Display Modules
- Each battery 24 powered RDM receives the local RF transmissions from the transmitter at the control panel, such that each wireless keypad RDM can also provide an accurate display of the present status of the security alarm system.
- the following represents one designed embodiment of a wireless keypad RDM for use with a system control panel RF transmitter, with a reasonable response time being provided for reporting chime/entry beeps etc.
- these 2 seconds are used by the system control panel RF transmitter to send periodic sync (synchronization) messages from 20 to each battery 24 powered receiver 26 in each RDM 22.
- the periodicity of the sync messages is determined by the stability of the oscillator crystals in the clocks 28, 30 of the transmitter and receiver.
- the transmitter and receiver are maintained synchronized to transmit/receive second periodic system messages and data from 32 during the same predetermined wake-up data transmission windows.
- the transmitter 16 sends alarm or status messages only at the particular synchronized data transmission wake up windows or ticks.
- the periodicity of the synchronized data transmission wake up windows or ticks is 3 seconds, assuming that a 3 second response time period is acceptable.
- Each receiver 26 in each RDM 22 wakes every three seconds for a very short period of time to listen for any possible transmitter data message.
- Each receiver 26 current is 7mA (5mA Rx, + 0.5mA uP, + 1mA analog + 0.5mA miscellaneous).
- Each receiver needs approximately 8ms to wake up and stabilize and needs approximately 4ms to antenna-switch between diverse antennae and make a stay-awake or return-to-sleep decision. Assuming that a worst case allowable relative time shift between the transmitter and receiver ticks is 2ms, therefore the stability of the oscillator crystals of the clocks in the transmitter and receiver must be such as to ensure 2ms accuracy over the period between sync messages.
- sync message is approximately 88 bits (5 byte preamble, 3 byte site ID, 1 byte message type, 2 byte CRC), i.e. "on" time is 8.8 ms at the preferred data rate. So, to comply with a preferred 2 second per hour target, there can be a maximum of 227 sync messages per hour, i.e. the periodicity is 16 seconds.
- An accuracy of 2ms over 16 seconds is 126ppm maximum, say 60 ppm at the transmitter and 60ppm at the receiver.
- Assume a loss of synchronization once per hour, which requires opening the receiver window to four times its normal width to resynchronize, or to transmit a resynchronize request, i.e. average current 80ms/3600 x 7mA 0.2uA.
- the total average current is 40uA, i.e. 350mAhr/year.
- a AA battery 24 cell capacity is approximately 1.8Ahr, suggesting a possible life for a wireless keypad RDM of approximately 5 years.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Alarm Systems (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2004306702A AU2004306702A1 (en) | 2003-09-11 | 2004-09-03 | Synchronizing RF system |
AT04809668T ATE463097T1 (en) | 2003-09-11 | 2004-09-03 | SYNCHRONIZATION RF SYSTEM |
EP04809668A EP1665738B1 (en) | 2003-09-11 | 2004-09-03 | Synchronizing rf system |
CN2004800261909A CN1849802B (en) | 2003-09-11 | 2004-09-03 | Safety alarming system and method for synchronizing safety alarming system |
DE602004026322T DE602004026322D1 (en) | 2003-09-11 | 2004-09-03 | SYNC RF SYSTEM |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/659,952 | 2003-09-11 | ||
US10/659,952 US7321788B2 (en) | 2003-09-11 | 2003-09-11 | Synchronizing RF system |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005036897A2 true WO2005036897A2 (en) | 2005-04-21 |
WO2005036897A3 WO2005036897A3 (en) | 2005-12-29 |
Family
ID=34273557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/028698 WO2005036897A2 (en) | 2003-09-11 | 2004-09-03 | Synchronizing rf system |
Country Status (8)
Country | Link |
---|---|
US (1) | US7321788B2 (en) |
EP (1) | EP1665738B1 (en) |
CN (1) | CN1849802B (en) |
AT (1) | ATE463097T1 (en) |
AU (1) | AU2004306702A1 (en) |
DE (1) | DE602004026322D1 (en) |
ES (1) | ES2341454T3 (en) |
WO (1) | WO2005036897A2 (en) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005112315A2 (en) * | 2004-05-13 | 2005-11-24 | Sandlinks Systems Ltd. | Low power fast impulse radio synchronization |
US7522685B2 (en) * | 2004-06-01 | 2009-04-21 | Honeywell International Inc. | Resynchronizing timing sync pulses in a synchronizing RF system |
US7912033B2 (en) | 2005-05-31 | 2011-03-22 | Olympus Corporation | Device synchronization on a communication network |
US8385878B2 (en) * | 2005-06-28 | 2013-02-26 | Qualcomm Incorporated | Systems, methods, and apparatus for activity control in a wireless communications device |
US7792217B2 (en) * | 2007-03-30 | 2010-09-07 | Olympus Corporation | Method and system for channel estimation |
BRPI0811117A2 (en) * | 2007-05-16 | 2014-12-23 | Thomson Licensing | APPARATUS AND METHOD FOR ENCODING AND DECODING SIGNS |
EP2201772A2 (en) * | 2007-10-15 | 2010-06-30 | Thomson Licensing | Apparatus and method for communicating burst mode activity |
BRPI0818616A2 (en) * | 2007-10-15 | 2015-04-07 | Thomson Licensing | Apparatus and method for signal encoding and decoding. |
US7782804B2 (en) * | 2008-03-10 | 2010-08-24 | Axiometric, Llc | Remote wireless activation and communication |
US7702939B2 (en) * | 2008-03-19 | 2010-04-20 | Ebm Technologies Incorporated | Method and system for controlling an operation time of a computer |
US7675475B2 (en) * | 2008-04-15 | 2010-03-09 | Honeywell International Inc. | Antenna mount |
CN102035591B (en) * | 2009-09-29 | 2014-02-05 | 北京歌尔泰克科技有限公司 | Signal periodic synchronization method and system |
CN104106101B (en) | 2011-07-29 | 2017-03-29 | Adt 美国控股股份有限公司 | Security system and method |
GB2490974B (en) * | 2011-09-08 | 2014-10-29 | Nordic Semiconductor Asa | Radio communication system |
US20140126548A1 (en) * | 2012-11-05 | 2014-05-08 | Qualcomm Incorporated | Dynamic paging channel selection in a machine-to-machine wireless wide area network |
WO2014100272A1 (en) * | 2012-12-19 | 2014-06-26 | Exxonmobil Upstream Research Company | Apparatus and method for monitoring fluid flow in a wellbore using acoustic signals |
WO2014100262A1 (en) * | 2012-12-19 | 2014-06-26 | Exxonmobil Upstream Research Company | Telemetry for wireless electro-acoustical transmission of data along a wellbore |
CN103532576A (en) * | 2013-09-25 | 2014-01-22 | 无锡泽太微电子有限公司 | Data transmission method, equipment and system |
US9765562B2 (en) * | 2014-05-07 | 2017-09-19 | Vivint, Inc. | Weather based notification systems and methods for home automation |
CA2955381C (en) | 2014-09-12 | 2022-03-22 | Exxonmobil Upstream Research Company | Discrete wellbore devices, hydrocarbon wells including a downhole communication network and the discrete wellbore devices and systems and methods including the same |
US10408047B2 (en) | 2015-01-26 | 2019-09-10 | Exxonmobil Upstream Research Company | Real-time well surveillance using a wireless network and an in-wellbore tool |
US10526888B2 (en) | 2016-08-30 | 2020-01-07 | Exxonmobil Upstream Research Company | Downhole multiphase flow sensing methods |
US10697287B2 (en) | 2016-08-30 | 2020-06-30 | Exxonmobil Upstream Research Company | Plunger lift monitoring via a downhole wireless network field |
US10364669B2 (en) | 2016-08-30 | 2019-07-30 | Exxonmobil Upstream Research Company | Methods of acoustically communicating and wells that utilize the methods |
US10415376B2 (en) | 2016-08-30 | 2019-09-17 | Exxonmobil Upstream Research Company | Dual transducer communications node for downhole acoustic wireless networks and method employing same |
US10344583B2 (en) | 2016-08-30 | 2019-07-09 | Exxonmobil Upstream Research Company | Acoustic housing for tubulars |
US10465505B2 (en) | 2016-08-30 | 2019-11-05 | Exxonmobil Upstream Research Company | Reservoir formation characterization using a downhole wireless network |
US10590759B2 (en) | 2016-08-30 | 2020-03-17 | Exxonmobil Upstream Research Company | Zonal isolation devices including sensing and wireless telemetry and methods of utilizing the same |
US10487647B2 (en) | 2016-08-30 | 2019-11-26 | Exxonmobil Upstream Research Company | Hybrid downhole acoustic wireless network |
MX2020003296A (en) | 2017-10-13 | 2020-07-28 | Exxonmobil Upstream Res Co | Method and system for performing hydrocarbon operations with mixed communication networks. |
MX2020004982A (en) | 2017-10-13 | 2020-11-12 | Exxonmobil Upstream Res Co | Method and system for performing communications using aliasing. |
WO2019074657A1 (en) | 2017-10-13 | 2019-04-18 | Exxonmobil Upstream Research Company | Method and system for performing operations using communications |
CN111201454B (en) | 2017-10-13 | 2022-09-09 | 埃克森美孚上游研究公司 | Method and system for performing operations with communications |
US10697288B2 (en) | 2017-10-13 | 2020-06-30 | Exxonmobil Upstream Research Company | Dual transducer communications node including piezo pre-tensioning for acoustic wireless networks and method employing same |
US10837276B2 (en) | 2017-10-13 | 2020-11-17 | Exxonmobil Upstream Research Company | Method and system for performing wireless ultrasonic communications along a drilling string |
US10690794B2 (en) | 2017-11-17 | 2020-06-23 | Exxonmobil Upstream Research Company | Method and system for performing operations using communications for a hydrocarbon system |
US12000273B2 (en) | 2017-11-17 | 2024-06-04 | ExxonMobil Technology and Engineering Company | Method and system for performing hydrocarbon operations using communications associated with completions |
AU2018367388C1 (en) | 2017-11-17 | 2022-04-14 | Exxonmobil Upstream Research Company | Method and system for performing wireless ultrasonic communications along tubular members |
US10844708B2 (en) | 2017-12-20 | 2020-11-24 | Exxonmobil Upstream Research Company | Energy efficient method of retrieving wireless networked sensor data |
US11156081B2 (en) | 2017-12-29 | 2021-10-26 | Exxonmobil Upstream Research Company | Methods and systems for operating and maintaining a downhole wireless network |
MX2020005766A (en) | 2017-12-29 | 2020-08-20 | Exxonmobil Upstream Res Co | Methods and systems for monitoring and optimizing reservoir stimulation operations. |
WO2019156966A1 (en) | 2018-02-08 | 2019-08-15 | Exxonmobil Upstream Research Company | Methods of network peer identification and self-organization using unique tonal signatures and wells that use the methods |
US11268378B2 (en) | 2018-02-09 | 2022-03-08 | Exxonmobil Upstream Research Company | Downhole wireless communication node and sensor/tools interface |
US11293280B2 (en) | 2018-12-19 | 2022-04-05 | Exxonmobil Upstream Research Company | Method and system for monitoring post-stimulation operations through acoustic wireless sensor network |
US11952886B2 (en) | 2018-12-19 | 2024-04-09 | ExxonMobil Technology and Engineering Company | Method and system for monitoring sand production through acoustic wireless sensor network |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2047428U (en) * | 1989-04-08 | 1989-11-08 | 薛恩霖 | Traffic signal instrument for initiative alarming |
DE3924283A1 (en) * | 1989-07-22 | 1991-01-31 | Standard Elektrik Lorenz Ag | CIRCUIT ARRANGEMENT FOR CIRCUITING A DIGITAL SERVICE CHANNEL IN A RADIO INTERMEDIATE INTERFACE |
GB2271691A (en) | 1992-09-21 | 1994-04-20 | Oconnor P J | Synchronisation of a radio telemetry system |
GB9304638D0 (en) | 1993-03-06 | 1993-04-21 | Ncr Int Inc | Wireless data communication system having power saving function |
CA2111929C (en) * | 1993-12-16 | 1999-04-20 | Reinhart Karl Pildner | Wireless alarm system |
JP2928116B2 (en) * | 1994-12-16 | 1999-08-03 | 日本電気株式会社 | Wireless selective call receiver |
US5991279A (en) * | 1995-12-07 | 1999-11-23 | Vistar Telecommunications Inc. | Wireless packet data distributed communications system |
US6085114A (en) * | 1997-02-06 | 2000-07-04 | At&T Wireless Systems Inc. | Remote wireless unit having reduced power operating mode |
DE69926489T2 (en) | 1998-03-10 | 2006-06-01 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | DATA TRANSMISSION PROCEDURE AND SYSTEM |
US20020140571A1 (en) * | 2001-01-29 | 2002-10-03 | Hayes Patrick H. | System and method for using a hand held device to display product information |
DE19851959B4 (en) | 1998-11-11 | 2004-09-30 | Honeywell Ag | Method for operating transmitting and receiving devices in a control system for one or more rooms in a building |
FR2794588B1 (en) * | 1999-06-03 | 2002-11-15 | Jacques Lewiner | COMBINED LOCAL TELEPHONY AND ALARM SYSTEM |
-
2003
- 2003-09-11 US US10/659,952 patent/US7321788B2/en not_active Expired - Lifetime
-
2004
- 2004-09-03 AT AT04809668T patent/ATE463097T1/en not_active IP Right Cessation
- 2004-09-03 DE DE602004026322T patent/DE602004026322D1/en active Active
- 2004-09-03 AU AU2004306702A patent/AU2004306702A1/en not_active Abandoned
- 2004-09-03 ES ES04809668T patent/ES2341454T3/en active Active
- 2004-09-03 CN CN2004800261909A patent/CN1849802B/en not_active Expired - Fee Related
- 2004-09-03 EP EP04809668A patent/EP1665738B1/en not_active Not-in-force
- 2004-09-03 WO PCT/US2004/028698 patent/WO2005036897A2/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of EP1665738A4 * |
Also Published As
Publication number | Publication date |
---|---|
ES2341454T3 (en) | 2010-06-21 |
CN1849802B (en) | 2010-10-13 |
US20050059436A1 (en) | 2005-03-17 |
CN1849802A (en) | 2006-10-18 |
US7321788B2 (en) | 2008-01-22 |
WO2005036897A3 (en) | 2005-12-29 |
EP1665738A2 (en) | 2006-06-07 |
DE602004026322D1 (en) | 2010-05-12 |
ATE463097T1 (en) | 2010-04-15 |
AU2004306702A1 (en) | 2005-04-21 |
EP1665738B1 (en) | 2010-03-31 |
EP1665738A4 (en) | 2007-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1665738B1 (en) | Synchronizing rf system | |
EP1080537B1 (en) | Radio receivers | |
EP0615363B1 (en) | Wireless local area network apparatus | |
US5560021A (en) | Power management and packet delivery method for use in a wireless local area network (LAN) | |
US5584048A (en) | Beacon based packet radio standby energy saver | |
US9078212B2 (en) | System and method for reducing power used for radio transmission and reception | |
US9094916B1 (en) | System and method for adjusting power used in reception in a wireless packet network | |
US7986652B1 (en) | System and method for adjusting power used in transmission in a wireless packet network | |
JP2008099075A (en) | Sensor network system and media access control method | |
US7522685B2 (en) | Resynchronizing timing sync pulses in a synchronizing RF system | |
WO2009044368A2 (en) | Power saving method and system for wireless communications device | |
KR100484593B1 (en) | Wireless telephone system | |
US6615033B1 (en) | Synchronized-timed-reminded communications for family radios | |
AU2006276960B2 (en) | Method and system of accessing a de-keyed base station | |
JPH02260927A (en) | Battery saving system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480026190.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004809668 Country of ref document: EP Ref document number: 2004306702 Country of ref document: AU |
|
ENP | Entry into the national phase |
Ref document number: 2004306702 Country of ref document: AU Date of ref document: 20040903 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2004306702 Country of ref document: AU |
|
WWP | Wipo information: published in national office |
Ref document number: 2004809668 Country of ref document: EP |