JP2002296340A - Satellite signal receiver for positioning - Google Patents
Satellite signal receiver for positioningInfo
- Publication number
- JP2002296340A JP2002296340A JP2001099481A JP2001099481A JP2002296340A JP 2002296340 A JP2002296340 A JP 2002296340A JP 2001099481 A JP2001099481 A JP 2001099481A JP 2001099481 A JP2001099481 A JP 2001099481A JP 2002296340 A JP2002296340 A JP 2002296340A
- Authority
- JP
- Japan
- Prior art keywords
- receiver
- positioning
- satellite signal
- signal
- signal receiver
- 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.)
- Pending
Links
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、測位用衛星信号受
信機において、当該受信機の電力消費を削減する技術に
関するするものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for reducing the power consumption of a positioning satellite signal receiver.
【０００２】[0002]
【従来の技術】近年、ＧＰＳ（Ｇｌｏｂａｌ Ｐｏｓｉ
ｔｉｏｎｉｎｇ Ｓｙｓｔｅｍ）を利用した、移動体に
搭載されその移動体の位置、時刻を算出する測位用衛星
信号受信機が産業分野の多方面で利用されている。例え
ば、車両や貨物の盗難防止、動物等の移動経路調査な
ど、移動体の位置管理に用途が広がっている。2. Description of the Related Art In recent years, GPS (Global Posi)
2. Description of the Related Art A positioning satellite signal receiver that is mounted on a mobile object and that calculates the position and time of the mobile object, using a positioning system, is used in various fields in the industrial field. For example, the use thereof has been expanded to position management of moving objects, such as prevention of theft of vehicles and cargo, and investigation of moving routes of animals and the like.
【０００３】従来、前記移動体に搭載された受信機の消
費電力を削減するために、携帯電話等の無線通信を介し
て電源の供給が制御される測位用衛星信号受信機、所定
時間毎に電源が供給される測位用衛星信号受信機など
が、実用に供されている。Conventionally, in order to reduce the power consumption of a receiver mounted on the moving body, a positioning satellite signal receiver whose power supply is controlled via wireless communication such as a mobile phone is provided. A positioning satellite signal receiver or the like to which power is supplied is in practical use.
【０００４】[0004]
【発明が解決しようとする課題】上記従来の技術では、
移動体の状況に関係なく、測位用衛星信号受信機へ電源
を供給するか否かを決定している。すなわち、移動体が
移動しない場合でも、測位用衛星信号受信機へ電源が供
給されることがあり、また、移動体が移動している場合
でも、測位用衛星信号受信機への電源供給が遮断される
という問題がある。In the above prior art,
Whether or not to supply power to the positioning satellite signal receiver is determined irrespective of the situation of the moving object. That is, even when the moving object does not move, power may be supplied to the positioning satellite signal receiver, and even when the moving object is moving, the power supply to the positioning satellite signal receiver is cut off. There is a problem that is.
【０００５】本発明の目的は、上記課題を解決し、移動
体が移動している場合のみ測位用衛星信号受信機へ電源
を供給し、更に移動が連続している場合には間欠的に電
源を供給することにより、測位を行うことで、電力消費
を削減する測位用衛星信号受信機を提供することであ
る。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to supply power to a positioning satellite signal receiver only when a moving object is moving, and to intermittently supply power when moving is continuous. The present invention provides a positioning satellite signal receiver that reduces power consumption by performing positioning by supplying the satellite signal receiver.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明では、測位用衛星信号受信機におい
て、当該受信機の移動を検出する手段と、当該受信機へ
の電源供給を制御する手段と、を具備している。To achieve the above object, according to the first aspect of the present invention, in a positioning satellite signal receiver, means for detecting movement of the receiver and power supply to the receiver are provided. Controlling means.
【０００７】さらに、請求項２の発明では、前記移動を
検出する手段が加速度センサである。Further, according to the invention of claim 2, the means for detecting the movement is an acceleration sensor.
【０００８】また、請求項３の発明では、前記電源供給
を制御する手段は、前記移動を検出する手段からの信号
に基づき、当該信号検出から所定時間経過後に受信機へ
電源を供給し、電源供給後所定時間経過後に、電源供給
を停止している。According to a third aspect of the present invention, the means for controlling the power supply supplies the power to the receiver after a lapse of a predetermined time from the detection of the signal, based on the signal from the means for detecting the movement. After a lapse of a predetermined time from the supply, the power supply is stopped.
【０００９】また、請求項４の発明では、前記受信機へ
の電源供給の制御は、当該受信機の高周波処理部および
復調部に対して行なわれている。In the invention of claim 4, control of power supply to the receiver is performed for a high-frequency processing unit and a demodulation unit of the receiver.
【００１０】[0010]
【発明の実施の形態】以下、本発明の好適な実施形態に
関し図面に基づき説明する。図１は、本発明の測位用衛
星信号受信機の全体構成例を説明する図である。本実施
例では、ＧＰＳ衛星からの信号を受信するＧＰＳ受信機
を用いて説明する。１０は高周波処理部、１１はＧＰＳ
信号受信用アンテナ、１２はＲＦアンプ、１３はミキサ
ー回路、１４はＩＦアンプ、１５はリミッターアンプ、
１６は局部発振器、１７は基準クロック発振器、２０は
復調部、２０−１、２０−２・・・・２０−Ｎは復調部
２０を構成する復調器（Ｎは本実施例では３２個）、３
０は加速度センサー、４０は電源制御部、５０は制御
器、６０は操作・表示部である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating an example of the overall configuration of a positioning satellite signal receiver according to the present invention. In this embodiment, a description will be given using a GPS receiver that receives a signal from a GPS satellite. 10 is a high frequency processing unit, 11 is a GPS
A signal receiving antenna, 12 is an RF amplifier, 13 is a mixer circuit, 14 is an IF amplifier, 15 is a limiter amplifier,
16 is a local oscillator, 17 is a reference clock oscillator, 20 is a demodulator, 20-1, 20-2,... 20-N are demodulators constituting the demodulator 20 (N is 32 in this embodiment) 3
0 is an acceleration sensor, 40 is a power control unit, 50 is a controller, and 60 is an operation / display unit.
【００１１】ＧＰＳ信号受信用アンテナ１１で受信され
た受信信号は、ＲＦアンプ１２で所定の電圧まで増幅さ
れ、ミキサー回路１３で基準クロック発振器１７の出力
を逓倍した局部発振器１６の出力と混合されＩＦ信号と
なる。このＩＦ信号はＩＦアンプ１４で所定レベルまで
増幅される。さらにＩＦアンプ１４の出力は、リミッタ
ーアンプ１５に供給され矩形波とされた後、各復調器２
０−１、２０−２・・・・２０−Ｎに供給される。The received signal received by the GPS signal receiving antenna 11 is amplified to a predetermined voltage by the RF amplifier 12, mixed with the output of the local oscillator 16 obtained by multiplying the output of the reference clock oscillator 17 by the mixer circuit 13, and Signal. This IF signal is amplified by the IF amplifier 14 to a predetermined level. Further, the output of the IF amplifier 14 is supplied to a limiter amplifier 15 to be converted into a rectangular wave, and then each demodulator 2
0-1, 20-2,..., 20-N.
【００１２】各復調器２０−１、２０−２・・・・２０
−Ｎは、それぞれ制御器５０からの制御信号により定め
られたＧＰＳ衛星の信号を捕捉し追尾する動作を行な
う。ここで、制御器５０からの制御信号により定められ
たＧＰＳ衛星からの信号を捕捉した複数の復調器は、衛
星のエフェメリスデータ、アルマナックデータ、その他
補正データ等を制御器５０に出力する。Each demodulator 20-1, 20-2... 20
-N performs an operation of capturing and tracking a GPS satellite signal determined by a control signal from the controller 50, respectively. Here, the plurality of demodulators that have captured the signal from the GPS satellite determined by the control signal from the controller 50 output ephemeris data, almanac data, and other correction data of the satellite to the controller 50.
【００１３】制御器５０は、ＧＰＳ衛星からの信号を捕
捉した複数の復調器からの出力信号（エフェメリスデー
タ、アルマナックデータ、その他補正データ等）により
測位計算を行い、この出力信号のデータと計算結果（測
位位置）を図示しないＲＡＭに記憶し、操作・表示部６
０に表示する。The controller 50 performs positioning calculation based on output signals (ephemeris data, almanac data, other correction data, etc.) from a plurality of demodulators that have captured signals from GPS satellites. (Positioned position) is stored in a RAM (not shown), and the operation / display unit 6
Display at 0.
【００１４】加速度センサー３０は、受信機の移動を検
出し、加速度信号を制御器５０に出力する。電源制御部
４０は、制御器５０からの制御信号により、高周波処理
部１０および復調部２０への電源供給を制御する。The acceleration sensor 30 detects the movement of the receiver and outputs an acceleration signal to the controller 50. The power control unit 40 controls power supply to the high-frequency processing unit 10 and the demodulation unit 20 according to a control signal from the controller 50.
【００１５】図２は、本発明の電源制御の実施例を説明
する図である。条件判定部５１には、加速度センサー３
０で検出された加速度信号と、タイマー部５２の時間カ
ウント用のタイマー信号が入力される。電源制御部４０
は、前記加速度信号と前記タイマー信号をもとに判定さ
れた条件判定部５１からの制御信号により、当該受信機
の高周波処理部１０および復調部２０への電源供給を制
御する。測位部５３は、制御信号を各復調器２０−１、
２０−２・・・・２０−Ｎに供給し、ＧＰＳ衛星信号の
捕捉と追尾を制御する。そして、ＧＰＳ信号を捕捉した
複数の復調器からの出力信号から測位計算を行う。FIG. 2 is a diagram for explaining an embodiment of power supply control according to the present invention. The condition determination unit 51 includes the acceleration sensor 3
The acceleration signal detected at 0 and the timer signal for counting the time of the timer unit 52 are input. Power control unit 40
Controls the power supply to the high-frequency processing unit 10 and the demodulation unit 20 of the receiver according to the control signal from the condition determination unit 51 determined based on the acceleration signal and the timer signal. The positioning unit 53 transmits the control signal to each demodulator 20-1,
.. 20-N to control the acquisition and tracking of GPS satellite signals. Then, positioning calculation is performed from output signals from a plurality of demodulators that have captured the GPS signal.
【００１６】次に条件判定部５１の動作について説明す
る。まず条件判定部５１では、加速度センサー３０で検
出された加速度信号の大きさが、所定レベル以上である
か否かの判断を行う。ここで加速度信号が、所定レベル
未満の場合は、加速度信号検出待ちの状態となる。ま
た、加速度信号が所定レベル以上となった場合、タイマ
ー部５２からの前記カウント信号を用いて所定時間のカ
ウントを開始する。所定時間のカウントが終了すると、
条件判定部５１は、電源供給信号を電源制御部４０に供
給する。これにより、当該受信機の高周波処理部１０お
よび復調部２０への電源が供給される。つづいて、条件
判定部５１は、タイマー部５２からの前記カウント信号
を用いて別の所定時間のカウントを開始する。別の所定
時間のカウントが終了すると、条件判定部５１は、電源
遮断信号を電源制御部４０に供給する。これにより、当
該受信機の高周波処理部１０および復調部２０への電源
が遮断される。そして、条件判定部５１は、前記加速度
信号検出待ちの状態に戻る。Next, the operation of the condition judging section 51 will be described. First, the condition determining unit 51 determines whether or not the magnitude of the acceleration signal detected by the acceleration sensor 30 is equal to or higher than a predetermined level. Here, when the acceleration signal is lower than the predetermined level, the state is a state of waiting for the acceleration signal detection. When the acceleration signal becomes equal to or higher than a predetermined level, counting of a predetermined time is started using the count signal from the timer section 52. When the count of the predetermined time ends,
The condition determination unit 51 supplies a power supply signal to the power control unit 40. Thereby, power is supplied to the high-frequency processing unit 10 and the demodulation unit 20 of the receiver. Subsequently, the condition determination unit 51 starts counting another predetermined time using the count signal from the timer unit 52. When the counting of another predetermined time ends, the condition determination unit 51 supplies a power cutoff signal to the power control unit 40. Thereby, the power supply to the high-frequency processing unit 10 and the demodulation unit 20 of the receiver is cut off. Then, the condition determination unit 51 returns to the state of waiting for the acceleration signal detection.
【００１７】測位用衛星信号受信機の高周波処理部１０
および復調部２０への電源を供給後、測位用衛星信号受
信機は、ＧＰＳ衛星信号を受信し、位置、速度、時刻等
を演算して、その結果と測位に必要な衛星のエフェメリ
スデータ、アルマナックデータ、その他の補正データを
制御器５０内にある図示しないＲＡＭに保存する。ま
た、これら演算されたデータは、シリアル回線を介し
て、ＧＰＳ受信機以外の無線機や携帯電話に出力され
る。High frequency processing unit 10 of positioning satellite signal receiver
After supplying power to the demodulation unit 20, the positioning satellite signal receiver receives the GPS satellite signal, calculates the position, speed, time, etc., and obtains the result, the ephemeris data of the satellite necessary for positioning, The data and other correction data are stored in a RAM (not shown) in the controller 50. The calculated data is output to a wireless device other than the GPS receiver or a mobile phone via a serial line.
【００１８】[0018]
【発明の効果】以上詳細に説明したように、本発明では
移動体が移動している場合のみ測位用衛星信号受信機へ
電源を供給し、更に移動が連続している場合には間欠的
に電源を供給することにより、測位を行うことで、電力
消費の削減を実現している。また、前記受信機への電源
遮断時には、受信時に測位に必要な衛星情報をＲＡＭに
保存しているため、次の電源供給時でもすばやく位置計
算することが可能となっている。As described above in detail, according to the present invention, power is supplied to the positioning satellite signal receiver only when the mobile body is moving, and intermittently when the mobile body is continuously moving. By supplying power, positioning is performed, thereby reducing power consumption. Further, when the power to the receiver is shut off, satellite information necessary for positioning at the time of reception is stored in the RAM, so that the position can be calculated quickly even at the time of the next power supply.
【図１】本発明の全体構成を説明する図FIG. 1 is a diagram illustrating the overall configuration of the present invention.
【図２】本発明の電源制御の実施例を説明する図FIG. 2 is a diagram for explaining an embodiment of power supply control according to the present invention.
１０ 高周波処理部 １１ ＧＰＳ信号受信用アンテナ １２ ＲＦアンプ １３ ミキサー回路 １４ ＩＦアンプ １５ リミッターアンプ １６ 局部発振器 １７ 基準クロック発振器 ２０ 復調部 ２０−１、２０−２・・・・２０−Ｎ 復調器 ３０ 加速度センサー ４０ 電源制御部 ５０ 制御器 ５１ 条件判定部 ５２ タイマー部 ５３ 測位部 ６０ 操作・表示部 DESCRIPTION OF SYMBOLS 10 High frequency processing part 11 GPS signal receiving antenna 12 RF amplifier 13 Mixer circuit 14 IF amplifier 15 Limiter amplifier 16 Local oscillator 17 Reference clock oscillator 20 Demodulation part 20-1, 20-2 ... 20-N demodulator 30 Acceleration Sensor 40 Power control unit 50 Controller 51 Condition judgment unit 52 Timer unit 53 Positioning unit 60 Operation / display unit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大滝 悟 埼玉県浦和市鹿手袋５−７−22−202 (72)発明者 古木 健一 神奈川県相模原市下九沢1422 Ｆターム(参考） 2F034 AA08 BA01 BA03 5J062 AA08 DD11 DD13 DD14 FF04 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Satoru Otaki 5-7-22-202 Shikaglove, Urawa-shi, Saitama (72) Inventor Kenichi Furuki 1422 Shimokyuzawa, Sagamihara-shi, Kanagawa F-term (reference) 2F034 AA08 BA01 BA03 5J062 AA08 DD11 DD13 DD14 FF04
Claims (4)
機の移動を検出する手段と、当該受信機への電源供給を
制御する手段と、を具備することを特徴とする測位用衛
星信号受信機。1. A positioning satellite signal receiver, comprising: means for detecting movement of the receiver; and means for controlling power supply to the receiver. Machine.
あることを特徴とする請求項１記載の測位用衛星信号受
信機。2. A positioning satellite signal receiver according to claim 1, wherein said means for detecting said movement is an acceleration sensor.
を検出する手段からの信号に基づき、当該信号検出から
所定時間経過後に受信機へ電源を供給し、電源供給後所
定時間経過後に、電源供給を止めることを特徴とする請
求項１および請求項２記載の測位用衛星信号受信機。3. The power supply control means, based on a signal from the movement detection means, supplies power to the receiver after a lapse of a predetermined time from the detection of the signal. 3. The positioning satellite signal receiver according to claim 1, wherein power supply is stopped.
信機の高周波処理部および復調部に対して行なわれるこ
とを特徴とする請求項１、請求項２および請求項３記載
の測位用衛星信号受信機。4. The positioning according to claim 1, wherein control of power supply to said receiver is performed for a high-frequency processing unit and a demodulation unit of said receiver. Satellite signal receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001099481A JP2002296340A (en) | 2001-03-30 | 2001-03-30 | Satellite signal receiver for positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001099481A JP2002296340A (en) | 2001-03-30 | 2001-03-30 | Satellite signal receiver for positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002296340A true JP2002296340A (en) | 2002-10-09 |
Family
ID=18953019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001099481A Pending JP2002296340A (en) | 2001-03-30 | 2001-03-30 | Satellite signal receiver for positioning |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002296340A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010532866A (en) * | 2007-07-06 | 2010-10-14 | クアルコム，インコーポレイテッド | Location tracking to perform geopositioning and local mode |
| JP2011511931A (en) * | 2007-12-14 | 2011-04-14 | クゥアルコム・インコーポレイテッド | Motion detection for tracking |
| JP2012103138A (en) * | 2010-11-11 | 2012-05-31 | Sony Corp | Position information detection device, communication device, and communication system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1183529A (en) * | 1997-09-03 | 1999-03-26 | Furuno Electric Co Ltd | Position-detection informing device |
| JP2001042023A (en) * | 1999-08-04 | 2001-02-16 | Japan Radio Co Ltd | Intermittent positioning method and device |
| JP2001059738A (en) * | 1999-08-24 | 2001-03-06 | Matsushita Electric Ind Co Ltd | Position informing device |
| JP2001305206A (en) * | 2000-04-25 | 2001-10-31 | Matsushita Electric Works Ltd | Gps receiving device |
-
2001
- 2001-03-30 JP JP2001099481A patent/JP2002296340A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1183529A (en) * | 1997-09-03 | 1999-03-26 | Furuno Electric Co Ltd | Position-detection informing device |
| JP2001042023A (en) * | 1999-08-04 | 2001-02-16 | Japan Radio Co Ltd | Intermittent positioning method and device |
| JP2001059738A (en) * | 1999-08-24 | 2001-03-06 | Matsushita Electric Ind Co Ltd | Position informing device |
| JP2001305206A (en) * | 2000-04-25 | 2001-10-31 | Matsushita Electric Works Ltd | Gps receiving device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010532866A (en) * | 2007-07-06 | 2010-10-14 | クアルコム，インコーポレイテッド | Location tracking to perform geopositioning and local mode |
| US8797214B2 (en) | 2007-07-06 | 2014-08-05 | Qualcomm Incorporated | Tracking implementing geopositioning and local modes |
| JP2011511931A (en) * | 2007-12-14 | 2011-04-14 | クゥアルコム・インコーポレイテッド | Motion detection for tracking |
| JP2014139573A (en) * | 2007-12-14 | 2014-07-31 | Qualcomm Incorporated | Motion detection for tracking |
| JP2012103138A (en) * | 2010-11-11 | 2012-05-31 | Sony Corp | Position information detection device, communication device, and communication system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3488144B2 (en) | Location notification device | |
| EP2201399B1 (en) | Mobile terminals and methods for regulating power-on/off of a gps positioning circuit | |
| US7633389B2 (en) | Location enabled device with power saving control and method thereof | |
| US7145507B2 (en) | Vehicle locating system using GPS | |
| US20050113124A1 (en) | Method and apparatus for lowering power use by a ranging receiver | |
| KR101409923B1 (en) | Gnss architecture | |
| KR20040035790A (en) | Advanced power management for satellite positioning system | |
| WO2009061014A1 (en) | Satellite tracking antenna system with improved tracking characteristics and operating method thereof | |
| JP2002156438A (en) | Satellite receiving device | |
| CN108318902A (en) | Adaptive geo-fence detection method and device, electronic equipment and management method | |
| WO2022077390A1 (en) | Satellite signal processing method and satellite positioning apparatus | |
| EP1441235A2 (en) | Location system | |
| JP2000131415A (en) | Gps receiving system | |
| JPH1038993A (en) | Position measuring apparatus | |
| JP2002296340A (en) | Satellite signal receiver for positioning | |
| JPH09311043A (en) | Navigator | |
| JP3453924B2 (en) | GPS receiver and control method therefor | |
| JP2001215268A (en) | Receiver for global positioning system | |
| JP2003194914A (en) | Gps positioning system | |
| JP3087453B2 (en) | Antenna control device | |
| US20150181527A1 (en) | Drive control method of reception unit and positioning device | |
| JP2000338219A (en) | Gps receiving system | |
| JP2002196062A (en) | Data transmission method in gps communication device and gps communication device using it for gps positioning and radio communication | |
| JPH11352206A (en) | Gps receiver | |
| RU103686U1 (en) | SUBSCRIBER TELEMATIC TERMINAL CSM / VHF MODEM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040916 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20041005 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050222 |