JP2733919B2 - GPS receiver - Google Patents

GPS receiver

Info

Publication number
JP2733919B2
JP2733919B2 JP24208893A JP24208893A JP2733919B2 JP 2733919 B2 JP2733919 B2 JP 2733919B2 JP 24208893 A JP24208893 A JP 24208893A JP 24208893 A JP24208893 A JP 24208893A JP 2733919 B2 JP2733919 B2 JP 2733919B2
Authority
JP
Japan
Prior art keywords
receiving
point
unit
positioning
light
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.)
Expired - Fee Related
Application number
JP24208893A
Other languages
Japanese (ja)
Other versions
JPH0772233A (en
Inventor
達典 佐田
知典 高田
浩 桜井
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.)
Mitsui Construction Co Ltd
Original Assignee
Mitsui Construction 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 Mitsui Construction Co Ltd filed Critical Mitsui Construction Co Ltd
Priority to JP24208893A priority Critical patent/JP2733919B2/en
Publication of JPH0772233A publication Critical patent/JPH0772233A/en
Application granted granted Critical
Publication of JP2733919B2 publication Critical patent/JP2733919B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Length Measuring Devices By Optical Means (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Description

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

【0001】[0001]

【産業上の利用分野】本発明は衛星を使用した測量技術
である汎地球測位システム(以下GPSと呼称)に用い
るためのGPS用受信装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a GPS receiver for use in a global positioning system (hereinafter referred to as GPS), which is a surveying technique using satellites.

【0002】[0002]

【従来の技術】図3は従来用いられているGPS用受信
アンテナの一例を示す図である。従来GPSによる測量
技術を用いて測位を行う場合には、図3に示すような受
信アンテナ22を、支柱25やベースプレート23等を
介して、測位対象となる地面2a等の上に設置する。そ
して、受信アンテナ22の受信部22aによって、複数
の測量用軌道衛星からの電波Sを受信し、該複数の衛星
と受信アンテナ22とのそれぞれの距離を算出すること
によって、該受信アンテナ22の設置位置を演算検出す
る。
2. Description of the Related Art FIG. 3 is a diagram showing an example of a conventional GPS receiving antenna. In the case where positioning is performed using a conventional GPS-based surveying technique, a receiving antenna 22 as shown in FIG. 3 is installed on the ground 2a or the like to be measured via a support 25, a base plate 23, or the like. The receiving unit 22a of the receiving antenna 22 receives radio waves S from a plurality of orbiting satellites for surveying, and calculates the respective distances between the plurality of satellites and the receiving antenna 22, thereby setting the receiving antenna 22. The position is calculated and detected.

【0003】[0003]

【発明が解決しようとする課題】しかし、こういったG
PSアンテナ22では、受信部22aが地上の障害物に
邪魔されることなく衛星からの電波Sをキャッチするこ
とが出来るように、該受信部22aが、支柱25を介し
て地面2aの上方に位置するように該支柱25に支持さ
れている。このため、支柱25が撓むと、該受信部22
aに設定されたアンテナ中心CT1位置が、本来配置さ
れているべき基準位置CT0から偏心してしまう、とい
う不都合がある。これによって、測位位置の検出精度が
低下することを余儀なくされる、という問題点を抱えて
いた。そこで本発明は上記事情に鑑み、アンテナの支柱
が撓んでも偏位修正を行うことによって、常に精密な測
位が出来るようにした、GPS用受信装置を提供するも
のである。
However, such a G
In the PS antenna 22, the receiving unit 22a is positioned above the ground 2a via the support 25 so that the receiving unit 22a can catch the radio wave S from the satellite without being obstructed by obstacles on the ground. To be supported by the column 25. Therefore, when the support 25 is bent, the receiving portion 22
There is a disadvantage that the position of the antenna center CT1 set at a is eccentric from the reference position CT0 at which the antenna should be originally arranged. As a result, there has been a problem that the detection accuracy of the positioning position has to be reduced. The present invention has been made in view of the above circumstances, and provides a GPS receiver capable of always performing precise positioning by correcting deviation even when a support of an antenna is bent.

【0004】[0004]

【課題を解決するための手段】即ち本発明は、測位すべ
き計測点(Pn)の位置(Xn、Yn)を検出し得るG
PS用受信装置(1)において、衛星からの測位信号
(S)を受信し得る受信部(3a)を有し、前記受信部
(3a)を前記計測点(Pn)の上方に支持する支持手
段(3b)を設け、前記受信部(3a)の底部にポイン
タ(7)を、参照光(40)を該ポインタ(7)の鉛直
方向下方に向けて射出し得る形で設け、受光面(5a)
が形成された受光手段(5)を、該受光面(5a)を前
記ポインタ(7)と対向させた形で設け、前記受光面
(5a)上の前記参照光(40)の照射位置(Pmp)
を検出する照射位置検出手段(17)を設け、前記照射
位置検出手段(17)が検出する参照光(40)の照射
位置(Pmp)と、前記計測点(Pn)との差異(K)
を検出する差異検出手段(16)を設け、前記受信部
(3a)が受信する測位信号(S)と、前記差異検出手
段(16)が検出する差異(K)に基づいて前記計測点
(Pn)の位置(Xn、Yn)を演算し得る計測点演算
手段(6、12、13、15)を設けて、構成される。
なお、( )内の番号等は、図面における対応する要素
を示す、便宜的なものであり、従って、本記述は図面上
の記載に限定拘束されるものではない。以下の作用の欄
についても同様である。
That is, according to the present invention, a G which can detect the position (Xn, Yn) of a measurement point (Pn) to be located.
The PS receiving device (1) includes a receiving unit (3a) capable of receiving a positioning signal (S) from a satellite, and supporting means for supporting the receiving unit (3a) above the measurement point (Pn). (3b), a pointer (7) is provided at the bottom of the receiving section (3a) in such a manner that the reference light (40) can be emitted vertically downward of the pointer (7), and a light receiving surface (5a) is provided. )
Is provided with the light receiving surface (5a) facing the pointer (7), and the irradiation position (Pmp) of the reference light (40) on the light receiving surface (5a) is provided. )
And a difference (K) between an irradiation position (Pmp) of the reference light (40) detected by the irradiation position detection means (17) and the measurement point (Pn).
Is provided, and the measurement point (Pn) is determined based on the positioning signal (S) received by the receiving section (3a) and the difference (K) detected by the difference detection means (16). ) Is provided and provided with measurement point calculation means (6, 12, 13, 15) capable of calculating the position (Xn, Yn).
The numbers and the like in parentheses are for convenience showing the corresponding elements in the drawings, and therefore, the description is not limited to the description on the drawings. The same applies to the following operation columns.

【0005】[0005]

【作用】上記した構成により、本発明は、測位信号
(S)を受信した受信部(3a)の位置に基づいて該受
信部(3a)の位置から、差異検出手段(16)が検出
する照射位置(Pmp)と計測点(Pn)との差異
(K)分だけ計測点演算手段(6、12、13、15)
に偏位修正させる形で、計測点(Pn)の位置(Xn、
Yn)を演算算出するように作用する。
According to the above-described configuration, the present invention provides an illumination which is detected by the difference detecting means (16) from the position of the receiving section (3a) based on the position of the receiving section (3a) which has received the positioning signal (S). Measuring point calculating means (6, 12, 13, 15) by the difference (K) between the position (Pmp) and the measuring point (Pn)
The position of the measurement point (Pn) (Xn,
Yn).

【0006】[0006]

【実施例】図1は本発明によるGPS用受信装置の一実
施例を示す図、図2は図1に示すGPS用受信装置にお
いてアンテナ中心位置の偏位状態を示す平面図である。
FIG. 1 is a diagram showing an embodiment of a GPS receiver according to the present invention, and FIG. 2 is a plan view showing a deviation state of an antenna center position in the GPS receiver shown in FIG.

【0007】本発明によるGPS用受信装置であるGP
S受信装置1は、図1に示すように、地面2a上におい
て測位すべき計測点である測位点Pnに設置されたアン
テナ3を有しており、アンテナ3の下端部には、その上
面側に受光面5aが形成された円盤状の受光板5が、後
述するレーザ光40を受光するための受光手段として地
面2aに沿った形で装着されている。受光板5の上方に
は、図示しない測量用軌道衛星からの測位信号である電
波Sを受信するためのアンテナ3の受信部3aが、その
受信面を空に向けた形で略半球状に設けられており、受
信部3aの図1右下側には、杆状に形成された支柱3b
が、該受信部3aをそのアンテナ中心C1から偏心した
位置において支持する形で、受光板5上に立設設置され
ている。支柱3bは受信部3aの支持手段を構成してお
り、支柱3bは受信部3aを測位点Pnの上方に支持す
るようになっている。受光板5には前記測位点Pnが、
該受光板5に対して配置固定された形で設定されてお
り、従ってアンテナ3は受光板5に設定された測位点P
nを地面2a上の測位すべき位置に配置させた状態で測
位を行うことによって、該測位点Pnの位置を測位し得
るようになっている。受信部3aには受信機6が接続さ
れており、受信機6は、アンテナ3の受信部3aに電波
Sを受信させることによって、アンテナ中心C1の位置
を検出し得るようになっている。なお、アンテナ3の支
柱3bは、本質的には図1において二点鎖線で示すよう
に、その材軸方向を鉛直方向に向けた形で立設されてい
るが、実施例においては、その説明の都合上、該支柱3
bが図1実線で示すように撓んだ状態になっている。
A GPS receiving apparatus according to the present invention, GP
As shown in FIG. 1, the S receiving apparatus 1 has an antenna 3 installed at a positioning point Pn which is a measuring point to be positioned on the ground 2a, and a lower end of the antenna 3 has an upper surface side thereof. A light receiving plate 5 having a light receiving surface 5a formed thereon is mounted along the ground 2a as light receiving means for receiving a laser beam 40 described later. Above the light receiving plate 5, a receiving section 3a of an antenna 3 for receiving a radio wave S as a positioning signal from a survey orbiting satellite (not shown) is provided in a substantially hemispherical shape with its receiving surface facing the sky. A rod-shaped support 3b is provided on the lower right side in FIG.
Are installed upright on the light receiving plate 5 in such a manner as to support the receiving portion 3a at a position eccentric from the antenna center C1. The support 3b forms support means for the receiving unit 3a, and the support 3b supports the receiving unit 3a above the positioning point Pn. The light receiving plate 5 has the positioning point Pn,
The antenna 3 is set so as to be fixed to the light receiving plate 5. Therefore, the antenna 3 is positioned at the positioning point P set on the light receiving plate 5.
By performing positioning while n is located at a position to be measured on the ground 2a, the position of the positioning point Pn can be measured. The receiver 6 is connected to the receiver 3a, and the receiver 6 can detect the position of the antenna center C1 by causing the receiver 3a of the antenna 3 to receive the radio wave S. The support 3b of the antenna 3 is essentially erected in such a manner that its material axis is oriented vertically as shown by the two-dot chain line in FIG. For the sake of convenience, the support 3
b is bent as shown by the solid line in FIG.

【0008】また、アンテナ3の受信部3aには、図1
に示すように、レーザポインタ7が、ボールジョイント
9を介してその上端側が該受信部3aの底部に枢着され
た形でアンテナ中心CT1下に吊下されており、レーザ
ポインタ7と前記受光板5の受光面5aは対向する形に
なっている。レーザポインタ7は、受信部3aの傾斜如
何に拘らず、その自重を介して常にレーザ軸心C2を鉛
直方向に向けた形に保持されており、レーザポインタ7
の内部にはレーザ光源(図示せず)が、該レーザポイン
タ7の下端部に設けられたレーザ光発進部7aからレー
ザ光40を参照光として鉛直方向下方に向けて射出自在
な形で設けられている。従ってレーザポインタ7は、レ
ーザ光発進部7aから射出するレーザ光40を前記受光
板5の受光面5aに照射することによって、該受光面5
a上にレーザ光40が照射された照射位置としてマーキ
ング点Pmpを指標し得るようになっている。
The receiving section 3a of the antenna 3 includes
As shown in the figure, a laser pointer 7 is suspended below the antenna center CT1 with its upper end side pivotally attached to the bottom of the receiver 3a via a ball joint 9, and the laser pointer 7 and the light receiving plate are suspended. The light receiving surfaces 5a of 5 are opposed to each other. The laser pointer 7 is always held in a shape in which the laser axis C2 is directed vertically by its own weight regardless of the inclination of the receiving section 3a.
A laser light source (not shown) is provided inside the laser pointer 7 such that the laser light source 7a provided at the lower end of the laser pointer 7 can vertically emit laser light 40 downward as a reference light. ing. Therefore, the laser pointer 7 irradiates the light receiving surface 5a of the light receiving plate 5 with the laser light 40 emitted from the laser
The marking point Pmp can be indexed as an irradiation position where the laser light 40 is irradiated on the “a”.

【0009】また、GPS受信装置1には、図1に示す
ように、測位支援装置10が設けられており、測位支援
装置10は主制御部11を有している。主制御部11に
は、入力部12、データ解析部13、演算補正部15、
偏心量算出部16、マーキング位置検知部17、出力部
19等が接続しており、入力部12には前記受信機6
が、また、マーキング位置検知部17には前記受光板5
が接続されている。マーキング位置検知部17は、受光
板5の受光面5a上に照射されたレーザ光40によるマ
ーキング点Pmpの位置を検出する照射位置検出手段を
構成しており、また、偏心量算出部16は、マーキング
位置検知部17が検出するマーキング点Pmpの位置
と、測位点Pnとの間の差異として偏心量Kを検出する
差異検出手段を構成している。そして、測位支援装置1
0の入力部12とデータ解析部13と演算補正部15と
前記受信機6は、受信部3aが受信する電波Sと偏心量
算出部16が算出する偏心量Kに基づいて計測点Pnの
位置(Xn、Yn)を演算し得る形で、GPS受信装置
10における計測点演算手段を構成する形になってい
る。
As shown in FIG. 1, the GPS receiver 1 is provided with a positioning support device 10, and the positioning support device 10 has a main controller 11. The main control unit 11 includes an input unit 12, a data analysis unit 13, an operation correction unit 15,
An eccentricity calculating unit 16, a marking position detecting unit 17, an output unit 19, and the like are connected.
However, the light receiving plate 5 is provided in the marking position detecting section 17.
Is connected. The marking position detecting unit 17 constitutes an irradiation position detecting unit that detects the position of the marking point Pmp by the laser light 40 irradiated on the light receiving surface 5a of the light receiving plate 5, and the eccentricity calculating unit 16 A difference detection unit that detects the amount of eccentricity K as a difference between the position of the marking point Pmp detected by the marking position detection unit 17 and the positioning point Pn is configured. And the positioning support device 1
The input unit 12 of 0, the data analysis unit 13, the operation correction unit 15, and the receiver 6 determine the position of the measurement point Pn based on the radio wave S received by the reception unit 3a and the eccentricity K calculated by the eccentricity calculation unit 16. In the form capable of calculating (Xn, Yn), measurement point calculation means in the GPS receiver 10 is configured.

【0010】GPS受信装置1は以上のような構成を有
しているので、該GPS受信装置1を用いて測位点Pn
の測位を行う際には、まず、受信機6によってアンテナ
3の受信部3aに、複数の測量用軌道衛星が発信する電
波Sをキャッチさせる。そして、該電波Sを読み取りす
ることによって、各衛星との間の距離をそれぞれ算出す
る。すると、アンテナ3が現在位置する位置と複数の衛
星との間の各距離によって、アンテナ中心C1の3次元
座標位置(Xn、Yn、Zn)が検出される。なお、本
実施例においては、測位点Pnの高さを示す該測位点P
nのZ軸位置(Zn)を検出しないで、X軸座標位置及
びY軸座標位置のみを検出する。そこで、アンテナ中心
C1のX及びY軸座標位置(Xn、Yn)を検出するこ
とによって、測位点PnのX及びY軸座標位置(Xn、
Yn)を算出していく。
[0010] Since the GPS receiver 1 has the above-described configuration, the positioning point Pn is determined using the GPS receiver 1.
First, the receiver 6 causes the receiver 3a of the antenna 3 to catch radio waves S transmitted by a plurality of orbiting satellites for measurement. Then, by reading the radio wave S, the distance to each satellite is calculated. Then, the three-dimensional coordinate position (Xn, Yn, Zn) of the antenna center C1 is detected based on each distance between the current position of the antenna 3 and the plurality of satellites. Note that, in the present embodiment, the positioning point P indicating the height of the positioning point Pn.
Without detecting the Z-axis position (Zn) of n, only the X-axis coordinate position and the Y-axis coordinate position are detected. Then, by detecting the X and Y axis coordinate positions (Xn, Yn) of the antenna center C1, the X and Y axis coordinate positions (Xn, Yn) of the positioning point Pn are detected.
Yn) is calculated.

【0011】即ち、このように測位点Pnの位置を検出
する際、GPS受信装置1は、レーザポインタ7を介し
て受光板5上にマーキング点Pmpを指標させて、該マ
ーキング点Pmpの位置に基づいて測位支援装置10に
よってアンテナ中心C1の位置を偏位修正する形で、測
位点Pnの位置を補正した状態で、正確に検出してい
く。いま、測位すべき測位点Pnの近傍に衛星からの電
波Sの受信の障害となるような障害物等があるとき、G
PSアンテナ3は、その受信部3aを地面2aの上方高
くに位置するように設置しなければならない。すると、
長い支柱3bを用いなければならず、これによって該長
い支柱3bは図1実線で示すように撓んでいることがあ
る。この結果、アンテナ中心C1は必ずしも測位点Pn
の真上に位置していない。従って、アンテナ中心C1下
に吊下されたレーザポインタ7によって受光板5上に指
標されるマーキング点Pmpの位置は、図3に示すよう
に、測位点Pnに対して任意の位置に位置することにな
る。この結果、マーキング点Pmpと測位点Pnとの間
には、偏心量K分の差異が生じるので、GPS受信装置
1は当該偏心の補正を行う。
That is, when detecting the position of the positioning point Pn in this way, the GPS receiver 1 causes the marking point Pmp to be indexed on the light receiving plate 5 via the laser pointer 7 and moves to the position of the marking point Pmp. Based on the correction of the position of the antenna center C1 by the positioning support device 10 based on the position, the position of the positioning point Pn is corrected and the detection is accurately performed. Now, when there is an obstacle or the like near the positioning point Pn to be positioned that may interfere with the reception of the radio wave S from the satellite,
The PS antenna 3 must be installed so that its receiving unit 3a is located above the ground 2a. Then
A long post 3b must be used, which may cause the long post 3b to deflect as shown by the solid line in FIG. As a result, the antenna center C1 is not necessarily located at the positioning point Pn.
Is not located directly above. Therefore, the position of the marking point Pmp indicated on the light receiving plate 5 by the laser pointer 7 suspended below the antenna center C1 must be located at an arbitrary position with respect to the positioning point Pn as shown in FIG. become. As a result, a difference of the amount of eccentricity K occurs between the marking point Pmp and the positioning point Pn, and the GPS receiver 1 corrects the eccentricity.

【0012】そこで、測位支援装置装置10の主制御部
11は、まず、受信機6によってアンテナ3の受信部3
aに、図示しない複数の測量用軌道衛星からの電波Sを
キャッチさせて、該複数の電波Sを入力部12に入力さ
せる。そして、データ解析部13に各電波Sを解析させ
て、当該解析情報を用いて、演算補正部15に、アンテ
ナ3と複数の衛星との間の各距離を算出させて、該距離
の各々によって、アンテナ中心C1の位置を演算算出さ
せる。
Therefore, the main control unit 11 of the positioning support apparatus 10 first uses the receiver 6 to
a is made to catch radio waves S from a plurality of orbiting satellites (not shown), and the plurality of radio waves S are input to the input unit 12. Then, the data analysis unit 13 analyzes each radio wave S, and uses the analysis information to cause the calculation correction unit 15 to calculate each distance between the antenna 3 and the plurality of satellites. , The position of the antenna center C1 is calculated.

【0013】これを行う際に、受信部3aに吊下された
レーザポインタ7には、そのレーザ光発進口7aから鉛
直方向下方に向けてレーザ光40を射出させる。する
と、レーザポインタ7はボールジョイント9を介してそ
の上端側が該受信部3aの底側に枢着された形でアンテ
ナ中心C1下に吊下されていて、これによって常にレー
ザ軸心C2を鉛直方向に向けた形に保持されているため
に、該レーザ光40の照射によって、アンテナ中心C1
の真下位置の受光板5の受光面5a上にマーキング点P
mpが指標される。従って、このときアンテナ中心C1
は、マーキング点Pmpの真上に位置する形で、該マー
キング点Pmpとアンテナ中心C1が同一のX及びY軸
座標位置(Xn、Yn)に位置している。
At the time of performing this, the laser pointer 7 suspended by the receiving section 3a emits the laser beam 40 from the laser beam launching port 7a downward in the vertical direction. Then, the laser pointer 7 is suspended below the antenna center C1 with the upper end side pivotally attached to the bottom side of the receiving section 3a via the ball joint 9, thereby always moving the laser axis C2 in the vertical direction. , The irradiation with the laser beam 40 causes the antenna center C1
Mark P on the light receiving surface 5a of the light receiving plate 5 just below
mp is indexed. Therefore, at this time, the antenna center C1
Is located right above the marking point Pmp, and the marking point Pmp and the antenna center C1 are located at the same X and Y axis coordinate positions (Xn, Yn).

【0014】そこで主制御部11は、マーキング位置検
知部17に、マーキング点Pmpの位置を検出させる。
そして、偏心量算出部16に、受光板5上に設定された
測位点pnに対するマーキング点Pmpの偏心量K(即
ち偏心の大きさ及び向き)を、マーキング点Pmpと測
位点pnとの差異として算出させる。即ち、マーキング
点Pmpと測位点Pnは、図3に示すように、一致して
いないので、該マーキング点Pmpの測位点Pnに対す
る偏心量Kを求め、該偏心量Kを用いることによって、
測位位置の補正を行う。そこで主制御部11は演算補正
部15に、先に述べたように算出されたアンテナ中心C
1のX、Y軸座標位置(Xn、Yn)を偏心量K分だけ
偏位修正するように補正させることによって、測位点P
nのX及びY軸座標位置(Xn、Yn)を演算算出させ
る。そして、該補正によって得られた測位点PnのX及
びY軸座標位置(Xn、Yn)を出力部19に出力させ
る。
Therefore, the main controller 11 causes the marking position detector 17 to detect the position of the marking point Pmp.
The amount of eccentricity K of the marking point Pmp with respect to the positioning point pn set on the light receiving plate 5 (that is, the magnitude and direction of the eccentricity) is calculated by the eccentricity amount calculating unit 16 as the difference between the marking point Pmp and the positioning point pn. Let it be calculated. That is, since the marking point Pmp and the positioning point Pn do not match as shown in FIG. 3, the eccentricity K of the marking point Pmp with respect to the positioning point Pn is obtained, and by using the eccentricity K,
Correct the positioning position. Therefore, the main control unit 11 gives the calculation correction unit 15 the antenna center C calculated as described above.
1 by correcting the X and Y axis coordinate positions (Xn, Yn) by the amount of eccentricity K to correct the position of the positioning point P.
The X and Y axis coordinate positions (Xn, Yn) of n are calculated and calculated. Then, the output unit 19 outputs the X and Y coordinate positions (Xn, Yn) of the positioning point Pn obtained by the correction.

【0015】すると、出力部19は、アンテナ中心C1
がどこに位置している場合においても、常に測位点Pn
の正確なX及びY軸座標位置(Xn、Yn)を出力す
る。こうしてGPS受信装置1は、その支柱3bが図1
に示すように、如何に撓んでいようとも、測位支援装置
10によって、アンテナ中心C1の位置の偏位修正を行
って、測位点PnのX及びY軸座標位置(Xn、Yn)
を正確に検出することが出来る。従って、樹木等の遮蔽
物を避けて、その受信部3aを該遮蔽物の上方に位置さ
せるようにGPSアンテナ3の支柱3bの長さL1を長
くすることによって、該支柱3bに撓みが生じた場合に
おいても、計測精度が落ちることはなく、レーザ光40
を用いた偏位修正を行うことによって、常に精密な測位
が可能となる。
Then, the output section 19 outputs the antenna center C1.
No matter where is located, the positioning point Pn is always
Output the accurate X and Y coordinate positions (Xn, Yn). Thus, the GPS receiver 1 has the support 3b shown in FIG.
As shown in FIG. 7, the position of the antenna center C1 is corrected for deviation by the positioning support device 10, and the X and Y axis coordinate positions (Xn, Yn) of the positioning point Pn are obtained.
Can be accurately detected. Therefore, by lengthening the length L1 of the column 3b of the GPS antenna 3 so that the receiving unit 3a is located above the block, avoiding a block such as a tree, the column 3b is bent. In this case, the measurement accuracy does not decrease and the laser light 40
By performing the deviation correction using, precise positioning is always possible.

【0016】なお、上述した実施例においては、レーザ
ポインタ7がボールジョイント9を介してアンテナ中心
C1下に吊下されている例を述べたが、本発明において
は、レーザポインタ7等のポインタは、レーザ光40等
の指向性のある参照光を鉛直方向下方に向けて射出し得
るように構成されていれば良く、参照光の種類やポイン
タ装着様態は、これ以外であっても良い。また、こうし
たポインタは、必ずしもアンテナ中心C1下に設けられ
ている必要はなく、レーザ軸心C2等の参照光の照射軸
心位置がアンテナ中心C1位置と偏心していても、測位
点Pnの位置を算出する際に当該偏心量を演算補正し得
るように構成されていれば何等差し支えない。また、実
施例においては、レーザ光40等の参照光を受光するた
めの受光手段として円盤板状に形成された受光板5を用
いた例を述べたが、こうした受光手段は、その受光面5
aがレーザポインタ7等のポインタと対向する形で設け
られていて、マーキング点Pmp等の参照光の照射位置
がマーキング位置検知部17等によって検知されること
が出来るように構成されていれば、その形態は任意であ
る。また、実施例においては、受光面5a上の測位点p
nとマーキング点Pmpとの差異を偏心量K(即ち偏心
の大きさ及び向き)として偏心量算出部16に検出させ
るようにした例を述べたが、差異検出手段が行う差異の
検出方法はこれに限定されるものではない。また、計測
点演算手段の構成及びこれが行う測位点Pn等の計測点
の演算算出方法は、実施例で述べた手順に限定されるも
のではない。
In the above-described embodiment, an example has been described in which the laser pointer 7 is hung below the antenna center C1 via the ball joint 9, but in the present invention, the pointer such as the laser pointer 7 is not used. It is sufficient that the reference light having directivity such as the laser light 40 can be emitted downward in the vertical direction, and the type of the reference light and the manner of attaching the pointer may be other than this. Such a pointer does not necessarily need to be provided below the antenna center C1. Even if the irradiation axis center position of the reference light such as the laser axis center C2 is eccentric with the antenna center C1, the position of the positioning point Pn is determined. At the time of calculation, there is no problem if the eccentricity is configured to be able to be arithmetically corrected. Further, in the embodiment, the example in which the light receiving plate 5 formed in a disc shape is used as the light receiving means for receiving the reference light such as the laser light 40 has been described.
If a is provided so as to face a pointer such as the laser pointer 7 and the irradiation position of the reference light such as the marking point Pmp can be detected by the marking position detection unit 17 and the like, The form is arbitrary. In the embodiment, the positioning point p on the light receiving surface 5a is set.
An example has been described in which the difference between n and the marking point Pmp is detected by the eccentricity calculation unit 16 as the eccentricity K (that is, the magnitude and direction of eccentricity). However, the present invention is not limited to this. Further, the configuration of the measurement point calculating means and the method of calculating and calculating the measurement points such as the positioning points Pn performed by the means are not limited to the procedure described in the embodiment.

【0017】[0017]

【発明の効果】以上説明したように、本発明によれば、
測位すべき測位点Pn等の計測点の位置(Xn、Yn)
を検出し得るGPS受信装置1等のGPS用受信装置に
おいて、衛星からの電波S等の測位信号を受信し得る受
信部3aを有し、前記受信部3aを前記計測点の上方に
支持する支柱3b等の支持手段を設け、前記受信部3a
の底部にレーザポインタ7等のポインタを、レーザ光4
0等の参照光を該ポインタの鉛直方向下方に向けて射出
し得る形で設け、受光面5aが形成された受光板5等の
受光手段を、該受光面5aを前記ポインタと対向させた
形で設け、前記受光面5a上の前記参照光のマーキング
点Pmp等の照射位置を検出するマーキング位置検知部
17等の照射位置検出手段を設け、前記照射位置検出手
段が検出する参照光の照射位置と、前記計測点との偏心
量K等の差異を検出する偏心量算出部16等の差異検出
手段を設け、前記受信部3aが受信する測位信号と、前
記差異検出手段が検出する差異に基づいて前記計測点の
位置(Xn、Yn)を演算し得る、受信機6、入力部1
2、データ解析部13、演算補正部15等の計測点演算
手段を設けて構成したので、測位信号を受信した受信部
3aの位置に基づいて該受信部3aの位置から、差異検
出手段が検出する照射位置と計測点との差異分だけ計測
点演算手段に偏位修正させる形で、計測点の位置(X
n、Yn)を演算算出することが出来る。従って、計測
点の位置は、受信部3aの底部に設けられたポインタが
射出する参照光の照射位置と計測点との差異に基づいて
算出されるので、支持手段に撓みが生じてポインタの位
置と計測点の位置との相関関係が崩れても、常に正確な
計測点の位置が検出される。即ち、受信部3aが設けら
れたアンテナ3の支柱3b等の支持手段が撓んでも、差
異検出手段と計測点演算手段によって偏位修正を行う形
で、計測点の位置を常に精密に検出することが出来る。
従って、アンテナ中心C1等の位置が計測点から偏心し
ても、何等問題なく計測点の位置を測位検出し得る。こ
のように、本発明によれば、支持手段の撓みによって測
位位置の検出精度が低下することがないので、撓みが生
じ易いような長い支持手段を用いても精密な測位が出来
る。よって、受信部3aを地上の障害物に邪魔されるこ
となく衛星からの測位信号をキャッチすることが出来る
ように、長い支持手段を用いて高い位置に配置させると
き等には、特にその効果を顕著に発揮することが可能と
なる。
As described above, according to the present invention,
Position of measurement point such as positioning point Pn to be measured (Xn, Yn)
A GPS receiving device such as the GPS receiving device 1 capable of detecting a signal, has a receiving unit 3a capable of receiving a positioning signal such as a radio wave S from a satellite, and supports the receiving unit 3a above the measurement point 3b and the like, and the receiving unit 3a
A pointer such as a laser pointer 7 is placed at the bottom of the
A reference light such as 0 is provided so as to be emitted vertically downward of the pointer, and a light receiving means such as a light receiving plate 5 having a light receiving surface 5a is provided such that the light receiving surface 5a faces the pointer. And an irradiation position detecting means such as a marking position detecting unit 17 for detecting an irradiation position of the reference light on the light receiving surface 5a, such as a marking point Pmp, and an irradiation position of the reference light detected by the irradiation position detecting means. And a difference detecting means such as an eccentricity calculating section 16 for detecting a difference in the eccentricity K or the like from the measurement point, based on a positioning signal received by the receiving section 3a and a difference detected by the difference detecting means. 6 and input unit 1 which can calculate the position (Xn, Yn) of the measurement point
2. Since the measurement point calculation means such as the data analysis unit 13 and the operation correction unit 15 is provided, the difference detection unit detects the position of the reception unit 3a based on the position of the reception unit 3a that received the positioning signal. The position of the measurement point (X
n, Yn) can be calculated. Therefore, the position of the measurement point is calculated based on the difference between the irradiation position of the reference light emitted from the pointer provided at the bottom of the receiving unit 3a and the measurement point, and the supporting means is bent and the position of the pointer is generated. Even if the correlation between the position and the position of the measurement point is broken, the position of the accurate measurement point is always detected. That is, even if the support means such as the column 3b of the antenna 3 provided with the receiving unit 3a is bent, the position of the measurement point is always accurately detected by correcting the deviation by the difference detection means and the measurement point calculation means. I can do it.
Therefore, even if the position of the antenna center C1 or the like is eccentric from the measurement point, the position of the measurement point can be detected without any problem. As described above, according to the present invention, since the detection accuracy of the measured position does not decrease due to the bending of the support means, precise positioning can be performed even by using a long support means in which bending is likely to occur. Therefore, when the receiving section 3a is arranged at a high position using long supporting means so as to be able to catch the positioning signal from the satellite without being disturbed by obstacles on the ground, the effect is particularly effective. It can be remarkably exhibited.

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

【図1】本発明によるGPS用受信装置の一実施例を示
す図である。
FIG. 1 is a diagram showing an embodiment of a GPS receiver according to the present invention.

【図2】図1に示すGPS用受信装置においてアンテナ
中心位置の偏位状態を示す平面図である。
FIG. 2 is a plan view showing a deviation state of an antenna center position in the GPS receiver shown in FIG.

【図3】従来用いられているGPS用受信アンテナの一
例を示す図である。
FIG. 3 is a diagram illustrating an example of a conventionally used GPS receiving antenna.

【符号の説明】[Explanation of symbols]

1……GPS用受信装置(GPS受信装置) 3a……受信部 3b……支持手段(支柱) 5……受光手段(受光板) 5a……受光面 7……ポインタ(レーザポインタ) 16……差異検出手段(偏心量算出部) 6……計測点演算手段(受信機) 12……計測点演算手段(入力部) 13……計測点演算手段(出力部) 15……計測点演算手段(演算補正部) 40……参照光(レーザ光) Pmp……照射位置(マーキング点) Pn……計測点(測位点) S……測位信号(電波) K……偏心量(差異) DESCRIPTION OF SYMBOLS 1 ... GPS receiver (GPS receiver) 3a ... Receiver 3b ... Supporting means (post) 5 ... Light receiving means (light receiving plate) 5a ... Light receiving surface 7 ... Pointer (laser pointer) 16 ... Difference detection means (eccentricity amount calculation unit) 6 ... Measurement point calculation means (receiver) 12 ... Measurement point calculation means (input unit) 13 ... Measurement point calculation means (output unit) 15 ... Measurement point calculation means ( Calculation correction section) 40: Reference light (laser light) Pmp: Irradiation position (marking point) Pn: Measurement point (positioning point) S: Positioning signal (radio wave) K: Eccentricity (difference)

フロントページの続き (56)参考文献 特開 平1−312408(JP,A) 特開 平3−2514(JP,A) 実開 平4−79210(JP,U)Continuation of the front page (56) References JP-A-1-312408 (JP, A) JP-A-3-2514 (JP, A) JP-A-4-79210 (JP, U)

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】測位すべき計測点の位置を検出し得るGP
S用受信装置において、 衛星からの測位信号を受信し得る受信部を有し、 前記受信部を前記計測点の上方に支持する支持手段を設
け、 前記受信部の底部にポインタを、参照光を該ポインタの
鉛直方向下方に向けて射出し得る形で設け、 受光面が形成された受光手段を、該受光面を前記ポイン
タと対向させた形で設け、 前記受光面上の前記参照光の照射位置を検出する照射位
置検出手段を設け、前記照射位置検出手段が検出する参
照光の照射位置と、前記計測点との差異を検出する差異
検出手段を設け、 前記受信部が受信する測位信号と、前記差異検出手段が
検出する差異に基づいて前記計測点の位置を演算し得る
計測点演算手段を設けて構成した、GPS用受信装置。
A GP capable of detecting the position of a measurement point to be measured
The receiving device for S, further comprising: a receiving unit that can receive a positioning signal from a satellite; a supporting unit that supports the receiving unit above the measurement point; a pointer at a bottom of the receiving unit; Light-receiving means having a light-receiving surface formed in such a manner as to be able to be emitted vertically downward of the pointer, and having the light-receiving surface facing the pointer; and irradiating the reference light on the light-receiving surface Providing an irradiation position detecting means for detecting a position, an irradiation position of the reference light detected by the irradiation position detecting means, and a difference detecting means for detecting a difference between the measurement point, a positioning signal received by the receiving unit, A GPS receiving device comprising a measuring point calculating means for calculating the position of the measuring point based on the difference detected by the difference detecting means.
JP24208893A 1993-09-02 1993-09-02 GPS receiver Expired - Fee Related JP2733919B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24208893A JP2733919B2 (en) 1993-09-02 1993-09-02 GPS receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24208893A JP2733919B2 (en) 1993-09-02 1993-09-02 GPS receiver

Publications (2)

Publication Number Publication Date
JPH0772233A JPH0772233A (en) 1995-03-17
JP2733919B2 true JP2733919B2 (en) 1998-03-30

Family

ID=17084121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24208893A Expired - Fee Related JP2733919B2 (en) 1993-09-02 1993-09-02 GPS receiver

Country Status (1)

Country Link
JP (1) JP2733919B2 (en)

Also Published As

Publication number Publication date
JPH0772233A (en) 1995-03-17

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