AU637876B2 - Reflecting mirror-equipped gps receiving antenna apparatus - Google Patents
Reflecting mirror-equipped gps receiving antenna apparatus Download PDFInfo
- Publication number
- AU637876B2 AU637876B2 AU72650/91A AU7265091A AU637876B2 AU 637876 B2 AU637876 B2 AU 637876B2 AU 72650/91 A AU72650/91 A AU 72650/91A AU 7265091 A AU7265091 A AU 7265091A AU 637876 B2 AU637876 B2 AU 637876B2
- Authority
- AU
- Australia
- Prior art keywords
- reflecting mirror
- vertical axis
- antenna
- antenna apparatus
- receiving antenna
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Description
PAETSAT 9263 7 87 6mio COMPLETE SPECIFICATION
(ORIGINAL)
FOR OFFCE USE Short Title: Int. Cl: Application Number: Lodged: Complete Specification Lodged: Accepted: Lapsed:.
Published: T± ority: *..Jlated Art: TO BE0MXMBYAPIA
TOECBEVCOMPLETEDNBYAPPARCTUT
Th olwn ttmn safl ecito fti netoicuigtebs ehdo Seromn itkon om: REFLECTING MIRROR-EQUIPPED GPS RECEIVING ANTENNA APPARATUS BACKGROUND OF THE INVENTION This invention relates to a reflecting mirror-equipped GPS (Global Positioning System) receiving antenna apparatus, an antenna apparatus which receives radio waves transmitted from GPS satellites and which is equipped with a reflecting mirror for use in an electronic distance meter (EDM) (tachymeter) or a total station.
Conventionally there is known a GPS interferometer measuring method in which the radio waves transmitted from GPS satellites are received by microstrip type of antennas
*O
disposed at two distant points, coordinate values at these two points coordinate values with the earth's center as an origin) are obtained, and the distance between the two points is calculated from these values. An antenna apparatus i to be used in this measurement comprises an antenna mounted on a tripod and a receiver connected to the antenna. The s. ignals received by the antenna are calculated by the receiver, thereby indicating the coordinate values of the point.
The above-described antenna apparatus is equipped only with a function of receiving the radio waves from the GPS satellites. When the radio waves are prevented by a building or the like from reaching the antenna, they cannot be received by the antenna. Then, in case the measurement is
S'
carried out by an electronic distance meter or a total station by making the position at which the antenna is set as a survey point, the antenna apparatus must be removed to place therein a reflecting mirror apparatus instead.
Consequently, the measurement with the conventional antenna apparatus is time-consuming and it cannot be done quickly.
OBJECT AND SUMMARY OF THE INVENTION This invention has an object of providing an antenna apparatus which can solve the above-described problem associated with the conventional antenna apparatus.
In order to attain the above-described object, this invention is a reflecting mirror-equipped GPS receiving, S antenna apparatus comprising a reflecting mirror and a microstrip type of antenna for receiving radio waves transmitted from GPS satellites, the reflecting mirror being supported by a base member so as to be swingable about a *o horizontal axis as well as rotatable about a first vertical axis, the antenna being supported by the base member above the reflecting mirror so as to be roatatble about a second vertical axis which is coaxial with the first vertical shaft.
In this invention, the reflecting mirror can be swung below the microstrip type of antenna independently thereof about the horizontal axis. The reflecting mirror can also be rotated about the first vertical axis to change its direction, thereby causing it to be positioned right opposite the electronic distance meter or the total station.
BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects and the attendant advantages of this invention will become readily apparent by reference to the following detailed description when I considered in conjunction with the accompanying drawings wherein: Fig. 1 is a front view of a first embodiment of this *invention; Fig. 2 is a side view thereof, partially shown in *o section; s* e Fig. 3 is a front ew of a second embodiment of this invention; Fig. 4 is a side view thereof, partially shown in section; and 0 Fig. 5 is a side view of a third embodiment of this invention.
DETAILED DESCRIPTION OF THE INVENTION A description is made about embodying examples of this invention with reference to the drawings.
Figs. 1 and 2 show a first embodiment of this invention.
A microstrip type of antenna 1 of disc shape for the a- GPS is mounted on a housing or a case 3 containing therein a preamplifier, the housing 3 being supported at an upper end of a second vertical supporting axis 2, so as to be rotatable thereabout. The second vertical supporting axis 2 has a frame 4 of square-tube shape in its intermediate position. A bottom piece 5 which is fixed to a bottom end of the second vertical supporting axis 2 is rotatably supported by a first vertical supporting axis 7 which is provided on a base member 6 at a connecting portion between the bottom piece 5 and the base member 6. Part of the second vertical supporting axis 2, the frame 4 and the bottom piece constitute a supporting member for supporting a prism 8 to 00 be described hereinbelow. These first and second vertical e axes 7, 2 are arranged in a coaxial relationship with each other. The above-described prism 8, which serves as a reflecting mirror, is fixed to a horizontal axis 9 which is rotatably provided on the frame 4. In this arrangement, the prism 8 can swing upwards and downwards about the horizontal axis 9 and can also rotate about the first vertical supporting axis 7 via the supporting member. The base member 6 is mounted, for example, on a tripod (not shown). The preamplifier is connected via a coaxial cable 10 to a receiver (not shown). In the figures, numeral 11 denotes a target plate which is divided for discrimination by coloring in yellow and black and is attached by screws 12 to the second vertical supporting axis 2.
Figs. 3 and 4 show a second embodiment of this invention.
An antenna 1 is fixed to a housing 3 containing therein a preamplifier, which is attached to an upper portion of a frame 13 of square-tube shape. A bottom piece 14 which is fixed to a lower portion of the frame 13 is supported by a second vertical supporting axis 7' which is provided on a base member 6 at a connecting portion between the bottom piece 14 and the base member 6 so that the antenna 1 is rotatable about the second vertical axis A first vertical supporting axis 15, which is arranged in o* coaxial arrangement with the second vertical supporting axis is rotatably provided on the bottom piece 14, and a Ushaped frame 15 is fixed to an upper end of the first *0 vertical supporting axis 15. The bottom piece 14, the first vertical supporting axis 15 and the U-shaped frame 16 S constitute a supporting member for a prism 8. The prism 8 is fixed to a horizontal axis 17 which is rotatably provided on Sthe frame 16. The prism 8 is thus both swingable about the horizontal axis 17 and rotatable about the first vertical supporting axis 15. A target plate 11 is fixed to the Ushaped frame 16.
In the above-described two embodiments, the center of rotation of the prism 8 and an imaginary reflecting surface thereof coincide with each other. In case they are offset, a correction is made to a measured distance value by the amount of the offset.
Fig. 5 shows a third embodiment of this invention.
In this embodiment, a vertical axis 18 is used instead of the frame 13 of the second embodiment shown in Figs. 3, 4. An arm 20 is fixed to a cylindrical body 19 which is fitted coaxially outside the vertical axis 18 such that the cylindrical body 19 is rotatable relative to the bottom piece 5. This cylindrical body 19 serves as a first vertical axis. A second vertical axis 7' is provided on a base member 6 in a coaxial relationship with the first vertical axis.
The bottom piece 5, the cylindrical body 19 and the arm constitute a supporting member for a prism 8 as described hereinbelow. The prism 8 which is swingable about a horizontal axis 21 and a target plate 11 are provided at an end of the cylindrical body 19. The antenna 1 is thus rotatably supported by the second vertical axis 7' via the S bottom piece 5 and the vertical axis 18.
In this arrangement, if a distance OJ to the prism 8 S, and an angle 01 are measured by a total station provided at a point 0, the horizontal distance between the point 0 and the survey point can be obtained by OJ cos 01 added by a 00 distance d (known value) between the points J and P.
In the above embodiments, it is so arranged that the positions of the antenna and the prism can be immovably fixed with a conventional means such as knobs or the like once their positions have been adjusted after rotation.
In all of the above three embodiments, the prism 8 and the target plate 11 can be displaced or changed in their positions without moving the antenna 1.
Since this invention has the above-described constitution, it can be used not only as an antenna apparatus but also as a reflecting mirror for tachymetry. It is therefore possible to measure a distance and angles to a survey point at which the antenna is placed, by means of an EDM, while carring out a GPS interferometer measuring method by receiving radio waves from GPS satellites. It is also possible to carry out tachymetry of the survey point without 0090 changing the antenna apparatus for the reflecting mirror 6O apparatus. This invention has, therefore, an advantage in that measuring can be carried out quickly without much time 0 involved.
em e• 1
Claims (6)
1. A reflecting mirror-equipped GPS receiving antenna apparatus comprising a reflecting mirror and a microstrip type of antenna for receiving radio waves transmitted from GPS satellites, said reflecting mirror being supported by a base member so as to be swingable about a horizontal axis as well as rotatable about a first vertical axis, said antenna being supported by said base member above said reflecting mirror so as to be rotatable about a second vertical axis which is coaxial with said first vertical axis.
2. A reflecting mirror-equipped GPS receiving antenna @0 apparatus according to claim 1, wherein said reflecting 0* mirror is supported by said base member via a supporting member and wherein said first vertical axis is provided on said base member.
3. A reflecting mirror-equipped GPS receiving antenna apparatus according to claim 1, wherein said reflecting mirror is supported by said base member via a supporting member and wherein said first vertical axis is formed as part of said supporting member.
4. A reflecting mirror-equipped GPS receiving antenna apparatus according to claim 1, wherein said antenna is rotatably supported at an upper end of said second vertical axis.
A reflecting mirror-equipp~ed GPS receiving antenna apparatus according to claim 1, wherein said antenna is rotatably supported by said second vertical axis and wherein said second vertical axis is provided on said base member.
6. A reflecting mirlr-equipped GPS receiving antenna apparatus substantially as, hereinbefore. described with reference to the accompanying drawings. a 00*e a. a aes a a a S *OOC 0O 0 0S 00 00 0 9*e DATED this day of March, SOKKISHA CO., LTD By their Patent Attorneys: CALLLNkN LAWRIE
1991. &00
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2-22192U | 1990-03-07 | ||
| JP1990022192U JPH0747751Y2 (en) | 1990-03-07 | 1990-03-07 | GPS receiver antenna device with reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU7265091A AU7265091A (en) | 1991-09-12 |
| AU637876B2 true AU637876B2 (en) | 1993-06-10 |
Family
ID=12075939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU72650/91A Ceased AU637876B2 (en) | 1990-03-07 | 1991-03-06 | Reflecting mirror-equipped gps receiving antenna apparatus |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH0747751Y2 (en) |
| AU (1) | AU637876B2 (en) |
| DE (1) | DE4107336C2 (en) |
| FR (1) | FR2661982B1 (en) |
| GB (1) | GB2242093B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3528987B2 (en) * | 1994-11-29 | 2004-05-24 | 株式会社フジタ | Unmanned survey system |
| US8209140B2 (en) * | 2009-12-17 | 2012-06-26 | Raytheon Company | Cooperative calibration of heading sensors |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2623999A (en) * | 1946-01-15 | 1952-12-30 | Edwin F Kulikowski | Antenna system |
| US4311382A (en) * | 1980-02-04 | 1982-01-19 | Pyramid Optical, Inc. | Universally adjustable ranging target and retro-reflector housing bracket |
| WO1990000718A1 (en) * | 1988-07-06 | 1990-01-25 | Wild Leitz Ag | Surveying instrument with receiver for a satellite position measurement system and process for operating it |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413907A (en) * | 1980-11-07 | 1983-11-08 | Robert F. Deike | Remote control surveying |
| CH677154A5 (en) * | 1988-07-06 | 1991-04-15 | Wild Leitz Ag | |
| DD301122A7 (en) * | 1989-05-10 | 1992-10-08 | Jenoptik Jena Gmbh | METHOD AND ARRANGEMENT FOR AIMING |
-
1990
- 1990-03-07 JP JP1990022192U patent/JPH0747751Y2/en not_active Expired - Lifetime
-
1991
- 1991-03-05 FR FR9102617A patent/FR2661982B1/en not_active Expired - Fee Related
- 1991-03-06 AU AU72650/91A patent/AU637876B2/en not_active Ceased
- 1991-03-07 DE DE4107336A patent/DE4107336C2/en not_active Expired - Fee Related
- 1991-03-07 GB GB9104821A patent/GB2242093B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2623999A (en) * | 1946-01-15 | 1952-12-30 | Edwin F Kulikowski | Antenna system |
| US4311382A (en) * | 1980-02-04 | 1982-01-19 | Pyramid Optical, Inc. | Universally adjustable ranging target and retro-reflector housing bracket |
| WO1990000718A1 (en) * | 1988-07-06 | 1990-01-25 | Wild Leitz Ag | Surveying instrument with receiver for a satellite position measurement system and process for operating it |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9104821D0 (en) | 1991-04-17 |
| JPH0747751Y2 (en) | 1995-11-01 |
| GB2242093A (en) | 1991-09-18 |
| JPH03114079U (en) | 1991-11-22 |
| GB2242093B (en) | 1994-04-27 |
| DE4107336C2 (en) | 2000-02-24 |
| FR2661982A1 (en) | 1991-11-15 |
| AU7265091A (en) | 1991-09-12 |
| DE4107336A1 (en) | 1991-09-12 |
| FR2661982B1 (en) | 1993-11-26 |
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