JPH1031060A - Gps receiver - Google Patents

Gps receiver

Info

Publication number
JPH1031060A
JPH1031060A JP20096996A JP20096996A JPH1031060A JP H1031060 A JPH1031060 A JP H1031060A JP 20096996 A JP20096996 A JP 20096996A JP 20096996 A JP20096996 A JP 20096996A JP H1031060 A JPH1031060 A JP H1031060A
Authority
JP
Japan
Prior art keywords
positioning
position measurement
mode
dimensional
dgps
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
JP20096996A
Other languages
Japanese (ja)
Other versions
JP3662078B2 (en
Inventor
Yuji Takara
裕二 高良
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio Co Ltd
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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP20096996A priority Critical patent/JP3662078B2/en
Publication of JPH1031060A publication Critical patent/JPH1031060A/en
Application granted granted Critical
Publication of JP3662078B2 publication Critical patent/JP3662078B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide proper mode position measurement information by automatically returning the set to AUTO position measurement and displaying it when three-dimensional position measurement is possible in spite of the setting of two-dimensional position measurement, or only the two-dimensional position measurement is possible in spite of the setting of three-dimensional position measurement. SOLUTION: A judgment part 13 judges whether mode set is proper or not. When a more precise three-dimensional position measurement is possible from the number or arrangement of GPS satellites even when two-dimensional position measurement is set by a DGPS(differential global positioning system), the set mode is automatically changed to AUTO position measurement, and a display showing the position measurement mode at the present point of time is added to a position measurement mode setting and display part 11. When three- dimensional position measurement is difficult even when three-dimensional position measurement is set by the DGPS, the set mode is automatically changed to AUTO position measurement, and a display showing the position measurement mode at the present point of time is added to the position measurement mode setting and display part 11.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、利用者の設定によ
り通常のＧＰＳ(Global Positioning System) での測位
かＤＧＰＳ（ディファレンシャルＧＰＳ）での測位かを
選択でき、ＤＧＰＳが選択されている場合においても、
二次元測位または三次元測位を選択できるＧＰＳ受信機
に関する。BACKGROUND OF THE INVENTION The present invention allows the user to select between positioning using a normal GPS (Global Positioning System) and positioning using a DGPS (Differential GPS) according to user settings. Even when DGPS is selected, ,
The present invention relates to a GPS receiver capable of selecting two-dimensional positioning or three-dimensional positioning.

【０００２】[0002]

【従来の技術】船舶等の位置や速度を測定する手段とし
てＧＰＳがあるが、通常のＧＰＳでは、測位精度がＣ／
Ａコードで１００ｍ程度であるため、測位精度を向上さ
せるためにＤＧＰＳが用いられる。そして一般的なＧＰ
Ｓ受信機においても利用者の設定により、通常のＧＰＳ
での測位かＤＧＰＳでの測位かを選択できる構成のもの
が開発されている。2. Description of the Related Art There is GPS as a means for measuring the position and speed of a ship or the like.
Since the A code is about 100 m, DGPS is used to improve the positioning accuracy. And general GP
In the S receiver, the normal GPS is set according to the user setting.
A configuration has been developed in which positioning can be selected between positioning by DGPS and positioning by DGPS.

【０００３】ＤＧＰＳは良く知られているように、予め
その位置が正確に判っている基準局で衛星からの測位信
号を受信し、この測位信号で得た測位情報と実際の位置
から擬似距離の誤差成分を計算し、それを補正データと
して利用者に送信する。ＧＰＳ受信機ではこの補正デー
タで補正を行い比較的正確な（測位精度が数ｍ程度）測
位情報を出力するシステムであるが、ＧＰＳ衛星の数や
配置によって、二次元測位しか出来ないか、三次元測位
も可能であるか等、情況は変化する。従ってＤＧＰＳを
利用できるＧＰＳ受信機であっても、利用者の設定によ
り通常のＧＰＳでの測位かＤＧＰＳかを選択でき、ＤＧ
ＰＳを選択した場合においても、二次元測位か三次元測
位か、または二次元〜三次元を自動的選択するAUTO測位
かを区別して設定できる構成となっているのが一般的で
ある。[0003] As is well known, DGPS receives a positioning signal from a satellite at a reference station whose position is accurately known in advance, and obtains an error of a pseudo distance from positioning information obtained from the positioning signal and an actual position. The component is calculated and transmitted to the user as correction data. A GPS receiver is a system that corrects with this correction data and outputs relatively accurate positioning information (positioning accuracy is about several meters). However, depending on the number and arrangement of GPS satellites, whether two-dimensional positioning can be performed only The situation changes, such as whether original positioning is possible. Therefore, even a GPS receiver that can use DGPS can select either normal GPS positioning or DGPS by user setting,
Even when the PS is selected, it is general that the configuration can be set so as to distinguish between two-dimensional positioning, three-dimensional positioning, and AUTO positioning in which two-dimensional to three-dimensional are automatically selected.

【０００４】[0004]

【発明が解決しようとする課題】然しながら従来のこの
種のＧＰＳ受信機では、ＤＧＰＳが選択されＤＧＰＳで
測位中においても、利用者が二次元測位を設定している
と測位精度の良い三次元測位が可能であっても二次元測
位が行われてしまう。また、利用者が三次元測位を設定
していても三次元測位が不可能な場合、測位不可能であ
る旨の表示が出るか、二次元で測位したデータを三次元
で測位したデータとして出力することになるので、利用
者に不便や誤解を与える等の問題点があった。本発明は
かかる問題点を解決するためになされたものである。However, in this type of conventional GPS receiver, even when DGPS is selected and positioning is performed by DGPS, if the user sets two-dimensional positioning, three-dimensional positioning with high positioning accuracy is performed. Is possible, two-dimensional positioning is performed. If 3D positioning is not possible even if the user has set 3D positioning, a message indicating that positioning is impossible appears, or data measured in 2D is output as data measured in 3D. Therefore, there is a problem that the user is inconvenient or misunderstood. The present invention has been made to solve such a problem.

【０００５】[0005]

【課題を解決するための手段】本発明に係わるＧＰＳ受
信機は、ＤＧＰＳ測位において、利用者が二次元測位を
設定していても三次元測位が可能な場合、また利用者が
三次元測位を設定していても二次元測位しかできない場
合、利用者の設定位置を自動的にAUTO測位に戻し、且つ
現在の測位モードを表示部に表示するようにした。従っ
て知識のない利用者でも適切なモード測位情報が得られ
るようになる。SUMMARY OF THE INVENTION A GPS receiver according to the present invention provides a DGPS positioning system in which a three-dimensional positioning is possible even if a user has set a two-dimensional positioning. When only two-dimensional positioning can be performed even if the setting has been made, the user's set position is automatically returned to the AUTO positioning, and the current positioning mode is displayed on the display unit. Therefore, even a user without knowledge can obtain appropriate mode positioning information.

【０００６】[0006]

【発明の実施の形態】以下、本発明の実施形態を図面を
用いて説明する。図１は本発明のＧＰＳ受信機の要部構
成の一実施形態を示すブロック図である。図において、
１１は測位モード設定・表示部であり、この測位モード
設定・表示部１１は利用者が測位モード、すなわち「Ｇ
ＰＳ」か「ＤＧＰＳ」かの設定と、ＤＧＰＳを設定した
場合に、「二次元測位」，「三次元測位」あるいは「AU
TO測位」の何れかを設定する設定部と、設定されたモー
ドが表示される表示部とで構成されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a main part configuration of the GPS receiver of the present invention. In the figure,
Reference numeral 11 denotes a positioning mode setting / display unit. The positioning mode setting / display unit 11 allows the user to select a positioning mode, that is, “G”.
If "PS" or "DGPS" is set and DGPS is set, "2D positioning", "3D positioning" or "AU
A setting unit for setting any of “TO positioning” and a display unit for displaying the set mode are provided.

【０００７】１２は測位モード検出部で、測位モード設
定・表示部１１で設定されたモードを検出し、設定され
たモードが「ＤＧＰＳ」で、且つ「二次元測位」または
「三次元測位」が設定された場合にのみ、この情報を判
定部１３へ出力する。１３は判定部で、測位モード検出
部１２からの情報によりＤＧＰＳで「二次元測位」また
は「三次元測位」が設定された場合、測位計算部１５か
ら送られてくるその時のＧＰＳ衛星の数や衛星の配置の
情報に照らし合わせて、そのモード設定が妥当か否かを
判定する。Reference numeral 12 denotes a positioning mode detection unit which detects a mode set by the positioning mode setting / display unit 11 and determines that the set mode is “DGPS” and that “two-dimensional positioning” or “three-dimensional positioning” is to be performed. Only when it is set, this information is output to the determination unit 13. Reference numeral 13 denotes a determination unit. When “two-dimensional positioning” or “three-dimensional positioning” is set in DGPS based on information from the positioning mode detection unit 12, the number of GPS satellites transmitted from the positioning calculation unit 15 at that time is determined. It is determined whether the mode setting is appropriate based on the information on the satellite arrangement.

【０００８】妥当でない場合には測位モード切替部１４
を動作させて自動的に（強制的に）「AUTO測位」にモー
ドを切り替え、この指示を測位計算部１５に送ると共
に、測位モードを利用者に知らせるために、現在行って
いる測位が「二次元測位」か「三次元測位」かの表示を
付加する。また１５は測位計算部で、受信部１６で受信
する複数の衛星からの測位信号から、測位モード切替部
１４で指示される測位モードで、測位データを算出する
と共に、衛星の数や配置の情報を判定部１３に出力す
る。If it is not appropriate, the positioning mode switching unit 14
To automatically switch (forcibly) the mode to “AUTO positioning”, send this instruction to the positioning calculation unit 15, and notify the user of the positioning mode. An indication of "dimensional positioning" or "three-dimensional positioning" is added. Numeral 15 denotes a positioning calculation unit which calculates positioning data from positioning signals from a plurality of satellites received by the receiving unit 16 and which is instructed by the positioning mode switching unit 14, as well as information on the number and arrangement of satellites. Is output to the determination unit 13.

【０００９】本実施形態のＧＰＳ受信機は図１に示すよ
うな構成としているので、「ＤＧＰＳ」で「二次元測
位」が設定されている場合でも、ＧＰＳ衛星の数や配置
から、より高精度の三次元測位が可能な場合、自動的に
（強制的に）設定モードを「AUTO測位」に変更し、測位
モード設定・表示部１１に現時点での測位モード（二次
元か三次元か）を示す表示が付加される。また「ＤＧＰ
Ｓ」で「三次元測位」が設定されている場合でも、ＧＰ
Ｓ衛星の数や配置から三次元測位が難しい場合に、自動
的に（強制的に）設定モードを「AUTO測位」に変更し、
測位モード設定・表示部１１に現時点での測位モード
（二次元か三次元か）を示す表示が付加される。Since the GPS receiver of the present embodiment has a configuration as shown in FIG. 1, even when “two-dimensional positioning” is set in “DGPS”, higher accuracy is obtained from the number and arrangement of GPS satellites. If three-dimensional positioning is possible, the setting mode is automatically (forced) changed to “AUTO positioning”, and the current positioning mode (two-dimensional or three-dimensional) is displayed on the positioning mode setting / display unit 11. The display shown is added. "DGP
Even if “3D positioning” is set in “S”, GP
When 3D positioning is difficult due to the number and arrangement of S satellites, the setting mode is automatically (forced) changed to "AUTO positioning",
A display indicating the current positioning mode (two-dimensional or three-dimensional) is added to the positioning mode setting / display unit 11.

【００１０】ＧＰＳ受信機は一般的に普及するに従っ
て、測位モード等の知識を有しない者の間でも広く使用
されるようになってきており、測位モードを設定するに
当たって適切な判断ができなかったり、必要な設定モー
ドの変更を忘れたりする場合が多くなる。本発明のＧＰ
Ｓ受信機は、ＤＧＰＳで不適切なモードが選択されてい
る場合これを装置自身で自動的に変更し、且つ変更した
ことを利用者に判るように表示させることで、利用者に
可能な限り高精度な測位情報を提供できるようになる。[0010] As GPS receivers have become widely used, they have been widely used even by those who do not have knowledge of the positioning mode or the like. Often, the user forgets to change the necessary setting mode. GP of the present invention
When an inappropriate mode is selected in the DGPS, the S receiver automatically changes the mode by itself and displays the changed mode so that the user can recognize the changed mode. High-precision positioning information can be provided.

【００１１】[0011]

【発明の効果】以上説明したように本発明のＧＰＳ受信
機は、ＤＧＰＳ測位中で二次元測位あるいは三次元測位
が設定されている場合に、設定された測位モードが不適
切な場合にAUTO測位に自動的に変更されるので、知識の
ない利用者でも適切なモードでの測位情報が得られる。
また、測位モードを自動的にAUTO測位に変更した場合、
現在の測位モードの表示も付加することとしたので、利
用者が現在の測位モードを誤ることもない等の効果があ
る。As described above, the GPS receiver according to the present invention can be used for auto positioning when two-dimensional positioning or three-dimensional positioning is set during DGPS positioning and when the set positioning mode is inappropriate. Automatically, so that a user without knowledge can obtain positioning information in an appropriate mode.
Also, if the positioning mode is automatically changed to AUTO positioning,
Since the display of the current positioning mode is also added, there is an effect that the user does not mistake the current positioning mode.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明のＧＰＳ受信機の要部構成の一実施形態
を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of a main configuration of a GPS receiver of the present invention.

【符号の説明】[Explanation of symbols]

１１ 測位モード設定・表示部 １２ 測位モード検出部 １３ 判定部 １４ 測位モード切替部 １５ 測位計算部 １６ 受信部 11 positioning mode setting / display unit 12 positioning mode detection unit 13 determination unit 14 positioning mode switching unit 15 positioning calculation unit 16 reception unit

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 ＤＧＰＳ（ディファレンシャルＧＰＳ）
を利用し、二次元測位か三次元測位か二次元〜三次元を
自動的に選択するAUTO測位かの何れかを設定できるＧＰ
Ｓ受信機において、 ＧＰＳ衛星の数や配置から二次元測位が適切であるか三
次元測位が適切であるかを判定する判定部、 上記判定部の判定により三次元測位が適切であるにも関
わらず、二次元測位が設定されている場合、この設定を
装置自身が自動的にAUTO測位に変更し、AUTO測位で現在
二次元測位を行っているか三次元測位を行っているかを
付加して表示する手段、 を備えたことを特徴とするＧＰＳ受信機。1. DGPS (Differential GPS)
GP that can set either 2D positioning, 3D positioning, or AUTO positioning that automatically selects 2D to 3D using GPS
A determination unit for determining whether two-dimensional positioning or three-dimensional positioning is appropriate based on the number and arrangement of the GPS satellites in the S receiver; When 2D positioning is set, the device automatically changes this setting to AUTO positioning, and displays whether 2D positioning or 3D positioning is currently being performed with AUTO positioning. A GPS receiver, comprising: 【請求項２】 ＤＧＰＳ（ディファレンシャルＧＰＳ）
を利用し、二次元測位か三次元測位か二次元〜三次元を
自動的に選択するAUTO測位かの何れかを設定できるＧＰ
Ｓ受信機において、 ＧＰＳ衛星の数や配置から二次元測位が適切であるか三
次元測位が適切であるかを判定する判定部、 上記判定部の判定により二次元測位が適切であるにも関
わらず、三次元測位が設定されている場合、この設定を
装置自身が自動的にAUTO測位に変更し、AUTO測位で現在
二次元測位を行っているか三次元測位を行っているかを
付加して表示する手段、 を備えたことを特徴とするＧＰＳ受信機。2. DGPS (Differential GPS)
GP that can set either 2D positioning, 3D positioning, or AUTO positioning that automatically selects 2D to 3D using GPS
A determination unit that determines whether two-dimensional positioning or three-dimensional positioning is appropriate based on the number and arrangement of the GPS satellites in the S receiver, and that the two-dimensional positioning is appropriate based on the determination by the determination unit If 3D positioning is set, the device automatically changes this setting to AUTO positioning, and displays whether 2D positioning or 3D positioning is currently performed with AUTO positioning. A GPS receiver, comprising: 【請求項３】 通常のＧＰＳとＤＧＰＳとの両方が利用
できる装置であることを特徴とする請求項第１項，第２
項記載のＧＰＳ受信機。3. The apparatus according to claim 1, wherein the apparatus is capable of using both normal GPS and DGPS.
The GPS receiver according to the item.
JP20096996A 1996-07-12 1996-07-12 GPS receiver Expired - Fee Related JP3662078B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20096996A JP3662078B2 (en) 1996-07-12 1996-07-12 GPS receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20096996A JP3662078B2 (en) 1996-07-12 1996-07-12 GPS receiver

Publications (2)

Publication Number Publication Date
JPH1031060A true JPH1031060A (en) 1998-02-03
JP3662078B2 JP3662078B2 (en) 2005-06-22

Family

ID=16433338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20096996A Expired - Fee Related JP3662078B2 (en) 1996-07-12 1996-07-12 GPS receiver

Country Status (1)

Country Link
JP (1) JP3662078B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006121730A (en) * 2000-08-14 2006-05-11 Sirf Technology Inc Global positioning system and method
JP2010197073A (en) * 2009-02-23 2010-09-09 Seiko Epson Corp Satellite signal reception apparatus and method for controlling the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006121730A (en) * 2000-08-14 2006-05-11 Sirf Technology Inc Global positioning system and method
JP2010197073A (en) * 2009-02-23 2010-09-09 Seiko Epson Corp Satellite signal reception apparatus and method for controlling the same

Also Published As

Publication number Publication date
JP3662078B2 (en) 2005-06-22

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