JP2007218857A5 - - Google Patents
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- JP2007218857A5 JP2007218857A5 JP2006042633A JP2006042633A JP2007218857A5 JP 2007218857 A5 JP2007218857 A5 JP 2007218857A5 JP 2006042633 A JP2006042633 A JP 2006042633A JP 2006042633 A JP2006042633 A JP 2006042633A JP 2007218857 A5 JP2007218857 A5 JP 2007218857A5
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- Prior art keywords
- base station
- time
- signal pulse
- mobile terminal
- synchronization signal
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- 230000005540 biological transmission Effects 0.000 claims 5
- 230000000051 modifying Effects 0.000 claims 2
Claims (5)
前記基地局は、１つの主基地局と複数の従基地局を含み、
前記主基地局は、
同期信号パルスを前記従基地局に送信するとともに、前記移動端末に測位信号パルスを前記同期信号パルスの送信終了後の所定の時刻に送信する手段を備え、
前記従基地局は、
同期信号パルスの受信時刻の決定を、前記従基地局が備えた基準クロックを基準として、前記基準クロックで動作する粗タイマーと、前記基準クロックよりも細かい刻みで動作する精密タイマーを用いて行い、
前記主基地局から送信された同期信号パルスと前記従基地局のクロックとのクロックのずれ時間を測定する手段と、
前記主基地局の同期信号パルス受信時刻から、前記クロックのずれ時間を含む時間差を加えた時刻に、測位信号パルスを前記移動端末に送信する手段と、
前記時間差のデータを前記移動端末に送信する手段とを備え、
前記移動端末は、
前記測位信号パルスを受信した時刻を、前記主基地局と前記従基地局から送信された、クロックのずれ時間を含む所定の時間差のデータを用いて、所定の周期で補正する手段と、前記測位信号パルスを受信した時刻と、前記移動端末に保存した前記主基地局と前記従基地局の位置座標とを用いて、前記移動端末の位置座標を決定する手段と、
を備えたことを特徴とする無線測位システム。 A radio positioning system that determines the position coordinates of a mobile terminal by transmitting positioning signal pulses from at least three base stations,
The base station includes one master base station and a plurality of slave base stations,
The main base station is
A means for transmitting a synchronization signal pulse to the slave base station, and a means for transmitting a positioning signal pulse to the mobile terminal at a predetermined time after completion of transmission of the synchronization signal pulse,
The slave base station is
The determination of the reception time of the synchronization signal pulse is performed using a coarse timer that operates with the reference clock and a fine timer that operates with finer increments than the reference clock with reference to the reference clock provided in the slave base station,
Means for measuring a clock shift time between a synchronization signal pulse transmitted from the master base station and a clock of the slave base station;
Means for transmitting a positioning signal pulse to the mobile terminal at a time obtained by adding a time difference including the clock shift time from the synchronization signal pulse reception time of the main base station;
Means for transmitting the time difference data to the mobile terminal,
The mobile terminal
Means for correcting the time at which the positioning signal pulse is received at a predetermined period using data of a predetermined time difference including a clock shift time transmitted from the main base station and the sub base station; Means for determining the position coordinates of the mobile terminal using the time when the signal pulse is received and the position coordinates of the master base station and the slave base station stored in the mobile terminal;
A wireless positioning system comprising:
前記パルス位置変調された擬似ランダムディジタル信号のチップ幅の特定位置でインパルス化した超広帯域無線信号を生成する手段と、
前記インパルス化した超広帯域無線信号により、同期信号パルスと測位信号パルスを送信する手段とを備えたことを特徴とする基地局。 The base station according to claim 1, means for pulse position modulating a predetermined pseudo-random digital signal with an arbitrary digital signal,
Means for generating an ultra-wideband radio signal impulsed at a specific position of the chip width of the pulse position modulated pseudo-random digital signal;
A base station comprising means for transmitting a synchronization signal pulse and a positioning signal pulse using the impulsed ultra-wideband radio signal.
前記基地局は、１つの主基地局と複数の従基地局を含み、
前記主基地局が、前記従基地局に同期信号パルスを送信するステップと、
前記移動端末に測位信号パルスを前記同期信号パルスの送信終了後の所定の時刻に送信するステップと、
前記従基地局が、
同期信号パルスの受信時刻の決定を、前記従基地局が備えた基準クロックを基準として、前記基準クロックで動作する粗タイマーと、前記基準クロックよりも細かい刻みで動作する精密タイマーを用いて行うステップと、
前記主基地局から送信された同期信号パルスと前記従基地局のクロックとのクロックのずれ時間を測定するステップと、
前記主基地局の同期信号パルス受信時刻から、前記クロックのずれ時間を含む時間差を加えた時刻に、測位信号パルスを前記移動端末に送信するステップと、
前記時間差のデータを前記移動端末に送信するステップと、
前記移動端末が、少なくも３つの前記測位信号パルスの受信時刻を、前記基地局から受信した前記時間差のデータを用いて、所定の周期で補正するステップと、
前記主基地局と前記従基地局から前記移動端末までの、各々の前記測位信号パルスの伝播遅延時間の差を決定するステップと、
前記各々の伝播遅延時間の差と、前記主基地局と前記従基地局の位置座標を用いて、前記移動端末の位置座標を決定するステップと、
を含む無線測位方法。 A wireless positioning method for determining a position coordinate of a mobile terminal by transmitting positioning signal pulses from at least three base stations,
The base station includes one master base station and a plurality of slave base stations,
The master base station transmitting a synchronization signal pulse to the slave base station;
Transmitting a positioning signal pulse to the mobile terminal at a predetermined time after transmission of the synchronization signal pulse;
The slave base station is
The step of determining the reception time of the synchronization signal pulse using a coarse timer that operates at the reference clock and a fine timer that operates at a finer step than the reference clock with reference to the reference clock provided in the slave base station When,
Measuring a clock shift time between the synchronization signal pulse transmitted from the master base station and the clock of the slave base station;
Transmitting a positioning signal pulse to the mobile terminal at a time obtained by adding a time difference including the clock shift time from the synchronization signal pulse reception time of the main base station;
Transmitting the time difference data to the mobile terminal;
The mobile terminal corrects the reception time of at least three positioning signal pulses at a predetermined period using the time difference data received from the base station;
Determining a difference in propagation delay time of each of the positioning signal pulses from the primary base station and the slave base station to the mobile terminal;
Determining the position coordinates of the mobile terminal using the difference between the propagation delay times of the respective and the position coordinates of the master base station and the slave base station;
Wireless positioning method including.
前記従基地局が備えたコンピュータを、
前記主基地局における前記同期信号パルスの送信終了時刻から、前記測位信号パルスの送信開始時刻までの時間Ｔaと、前記主基地局から前記従基地局までの前記測位信号パルスの伝播遅延時間Ｔpiと、前記主基地局のクロックに対する前記従基地局のクロックのずれ時間Ｔ0iと、前記主基地局におけるクロック周期Ｔkとを入力する手段、
加減算、除算の整数部分の計算、および乗算により、
Ｔi＝[（Ｔa−Ｔpi＋Ｔ0i）ｄｉｖＴk]×Ｔk
の演算を行う手段、および
前記演算結果Ｔiを、前記従基地局が、前記主基地局の前記同期信号パルスを受信した
時刻から、前記測位信号パルスを送信する時刻までの時間差として出力する手段、
として機能させるための無線測位のためのプログラム。 A program for radio positioning, wherein a synchronization signal pulse is transmitted from one master base station to a plurality of slave base stations, and the slave base station determines a transmission time of a positioning signal pulse to be transmitted to a mobile terminal. ,
A computer provided in the slave base station,
A time Ta from the transmission end time of the synchronization signal pulse at the master base station to a transmission start time of the positioning signal pulse, and a propagation delay time T of the positioning signal pulse from the master base station to the slave base station means for inputting pi , a clock shift time T 0i of the slave base station with respect to the clock of the master base station, and a clock cycle T k in the master base station;
By adding, subtracting, calculating the integer part of division, and multiplying,
T i = [(T a −T pi + T 0i ) divT k ] × T k
And means for outputting the calculation result T i as a time difference from the time when the slave base station receives the synchronization signal pulse of the master base station to the time when the positioning signal pulse is transmitted. ,
Program for wireless positioning to function as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006042633A JP5023508B2 (en) | 2006-02-20 | 2006-02-20 | Wireless positioning system, wireless positioning method, and program for wireless positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006042633A JP5023508B2 (en) | 2006-02-20 | 2006-02-20 | Wireless positioning system, wireless positioning method, and program for wireless positioning |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007218857A JP2007218857A (en) | 2007-08-30 |
| JP2007218857A5 true JP2007218857A5 (en) | 2009-01-29 |
| JP5023508B2 JP5023508B2 (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006042633A Expired - Fee Related JP5023508B2 (en) | 2006-02-20 | 2006-02-20 | Wireless positioning system, wireless positioning method, and program for wireless positioning |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5023508B2 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009063539A (en) * | 2007-09-10 | 2009-03-26 | Nec Corp | Position calculating system, mobile station, position calculation method, program and recording medium |
| US8059028B2 (en) * | 2008-08-14 | 2011-11-15 | Trueposition, Inc. | Hybrid GNSS and TDOA wireless location system |
| JP2009273053A (en) * | 2008-05-09 | 2009-11-19 | Fujitsu Ltd | Transmitting apparatus, receiving apparatus and communication system |
| US20110312339A1 (en) * | 2009-03-09 | 2011-12-22 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and Arrangements in a Wireless Communication System |
| KR101092209B1 (en) | 2009-05-18 | 2011-12-08 | 한국전기연구원 | IR-UWB Location Positioning Method and System with Wireless Synchronization |
| KR101244936B1 (en) | 2012-03-15 | 2013-03-20 | 한국전기연구원 | Method of clock offset compensation for wireless positioning and apparatus thereof |
| KR101304849B1 (en) | 2012-09-04 | 2013-09-05 | 한국전기연구원 | Wireless positioning server using clock offset compensation and wireless positioning method using the same |
| CN115267648A (en) * | 2015-03-07 | 2022-11-01 | 维里蒂股份公司 | Distributed positioning system and method and self-positioning equipment |
| US10111044B2 (en) | 2015-05-29 | 2018-10-23 | Verity Studios Ag | Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus |
| US10749778B2 (en) | 2015-07-28 | 2020-08-18 | Acorn Technologies, Inc. | Communication system determining time of arrival using matching pursuit |
| CN105388454B (en) * | 2015-10-16 | 2016-10-12 | 四川中电昆辰科技有限公司 | For realizing the quasi synchronous device of signal, positioner and method |
| JP6374440B2 (en) * | 2016-06-15 | 2018-08-15 | 東京エレクトロニツクシステムズ株式会社 | Positioning terminal |
| CN108037484A (en) * | 2017-11-30 | 2018-05-15 | 百色学院 | A kind of interior LED visible light localization method, system and device |
| JP2020051789A (en) * | 2018-09-25 | 2020-04-02 | 株式会社日立国際電気 | Ground wave positioning system |
| CN111866710B (en) * | 2020-07-01 | 2024-04-05 | 黄珊 | UWB positioning system, tag positioning method and device |
| CN112272403B (en) * | 2020-10-29 | 2023-04-28 | 深圳鹏锐信息技术股份有限公司 | UWB-based positioning clock error resolving method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814627B2 (en) * | 1976-01-31 | 1983-03-19 | 有限会社三和電子製作所 | time interval measuring device |
| KR100220672B1 (en) * | 1994-10-31 | 1999-09-15 | 전주범 | Time interval measurer having parallel architecture |
| JPH11271418A (en) * | 1998-03-20 | 1999-10-08 | Fujitsu Ltd | Radio wave positioning system, device, and method therefor |
| JP2003101508A (en) * | 2001-09-21 | 2003-04-04 | Sony Corp | Wireless communication system, base station apparatus, and terminal equipment |
| JP2004354121A (en) * | 2003-05-28 | 2004-12-16 | Hitachi Ltd | Wireless terminal position measuring method |
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2006
- 2006-02-20 JP JP2006042633A patent/JP5023508B2/en not_active Expired - Fee Related
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