JPH06232615A - Gap antenna support device and arrangement method for gps antenna - Google Patents

Abstract

PURPOSE:To provide a GPS antenna support device able to be correctly installed on a measurement point even when a reference point (measurement point) exists in the vicinity of a structure and the arrangement method for the GPS antenna. CONSTITUTION:The GPS antenna support device S is made up of an X-Y moving table 20 arranged via a leveling means provided on a frame base, a telescopic pole provided perpendicularly to the X-Y moving table 20, a GPS antenna support section 40 provided to the end of a horizontal arm 41 extending horizontally from the upper end of the pole 30, and a laser tube 60 suspended to a lower part of the GPS antenna support section 40 via a gimbal 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a GPS antenna supporting device and a GPS antenna arranging method, and more particularly, to a GPS antenna supporting device capable of accurately installing the GPS antenna in an arbitrary space on a reference point (measurement point) vertical line. The present invention relates to a method of disposing a GPS antenna.

[0002]

2. Description of the Related Art Due to the earth orbit of GPS satellites, radio waves emitted from GPS satellites in Japan generally come from an obliquely inclined direction. Therefore, a GPS antenna is arranged to receive the radio waves. It is desirable that the support position and the support position are arranged and supported at an upper position where radio waves are easily received.

In the past, as shown in FIG. 7,
A leveling table 72 is installed on a tripod 71 for general surveying, and a GPS antenna 73 is mounted and fixed on the leveling table 72.
The vertical position of the PS antenna 73 was leveled. In the figure, reference numeral 74 is a centripetal telescope, and by this centripetal telescope 74,
The measuring point 75 was collimated and the leveling table 72 was slid on the tripod 71 to position the antenna 73 on the measuring point 75. However, in the prior art shown in FIG. 7, since the height of the tripod 71 is limited, it is possible to connect an antenna support pole on the tripod and dispose the GPS antenna on this.

When the antenna support pole is connected as described above, not only the antenna support pole bends, but also when the GPS antenna is mounted on the antenna support pole where such a bend occurs, the antenna shaft itself Also, the tilt occurs, the axial direction becomes unstable, and the displacement of the reference point (measurement point) or the like occurs.

Further, in the supporting technique for mounting and fixing the GPS antenna on the tripod as shown in FIG. 7, for example, when the measuring point 75 is provided near a structure such as a building or a rock wall, the leg portion of the tripod 71 is used. Has an inconvenience that the antenna 73 cannot be positioned directly above the measuring point 75, and because radio waves are blocked by the shadow of a tree or the like, the antenna is low on a conventional tripod, which is inconvenient.

An object of the present invention is to provide a GPS antenna supporting device and a GPS antenna arranging method which can be correctly installed on a measuring point even if the reference point (measuring point) is near the structure.

Another object of the present invention is to provide a GPS antenna supporting device and a GPS antenna arranging method which can be used as an alignment fixture with high vertical accuracy even when the GPS antenna is set at a high position.

[0008]

A GPS antenna support device includes a horizontal moving means arranged via a leveling means provided on a pedestal, and a telescopic pole vertically provided on the horizontal moving means. A GPS antenna holding portion provided at an end portion of a horizontal arm extending horizontally from the upper end portion of the pole, and a laser tube suspended and supported via a gimbal below the GPS antenna holding portion are provided. And

It is preferable that a sensor for detecting the vertical state of the laser tube is provided between the laser tube, the cylindrical body surrounding the laser tube and supported by a horizontal arm, and the laser tube.

Further, the GPS antenna arranging method according to the present invention includes an XY moving device provided on the pedestal via a leveling means, and an XY moving device which is arranged vertically to the XY moving device and has an upper end portion. Vertical measurement of a retractable support device having a horizontal member extending horizontally from the center of the GPS antenna at the end position of the horizontal member and the intersection point of the biaxial gimbal and the reference point depending on the biaxial gimbal. An apparatus and a detection means for detecting the vertical state of the vertical measurement apparatus. The detection means causes the vertical measurement apparatus to be vertical, and the XY moving device leveled by the leveling means supports the support. Move the device to position the GPS antenna center on the reference point,
The center of the PS antenna is located vertically above the reference point.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention. 1 to 6 show an embodiment of the present invention. FIG. 1 is a schematic configuration diagram of a GPS antenna supporting device, and FIGS. 2 and 3 are cross-sectional views of a main part of an XY moving table as horizontal moving means. FIG. 4 is a cross-sectional view of a main part of a GPS antenna holding portion and a laser tube provided on a horizontal arm, and FIG. 5 shows a gimbal portion of FIG.
A sectional view and FIG. 6 are explanatory views of the leveling mechanism.

The GPS antenna supporting device S of this embodiment is, for example, a tripod 11 as a mount, a horizontal moving means 20 arranged through leveling means (including a bubble tube), an extendable pole 30, and a GPS antenna. Holding part 40 and biaxial gimbal 5
0 and a laser tube 60.

The tripod 11 as the gantry of this embodiment uses a short tripod 11, and a horizontal moving means (for example, an XY moving table) having a leveling mechanism built in as the leveling means on the tripod 11. Although 20 is mounted and fixed, as the leveling means, a leveling table is mounted on the tripod 11, and the XY moving table 20 as the horizontal moving means is mounted and fixed on the leveling table. You may.

The XY moving table 20 as the horizontal moving means of this embodiment includes a base 21 and a slider 22 (22a, 22a,
22b), base 21 and sliders (22a, 22b)
Fixing device 23 (23a, 23b).

The base 21 is provided with a bottom plate 21a, which is connected to the leg head 11a of the tripod 11 via three leveling screws 24a and 24b (one of the leveling screws is omitted). There is. That is, as shown in FIG. 6, the bottom plate 21a of the base 21 constituting the XY moving table 20 is attached to the leg head 11a of the tripod 11 by the three leveling screws 24a and 24b (only two are shown). It is supported. This leveling screw 24
The tilted state of the XY moving table 20 with respect to the tripod leg 11a is changed by the rotation of a and 24b.

The base 21 has sliders 22a and 2a.
The sliders 22a and 22b are arranged in two stages, and the sliders 22a and 22b are attached to the base 21 in the X direction and the Y direction.
It is configured to be individually movable in the direction. One of the sliders 22a and 22b is assembled on top of the other, but the other configuration is similar only in the moving direction of the slider, and since the configuration is the same, one slider will be described and the other slider will be described. Will be omitted.

As shown in FIG. 3, the slider 22a of the XY moving table 20 has a slider 22 (22) with respect to a horizontally extending rotary screw 26 (26a, 26b).
a, 22b) is assembled. Then, the slider 22 is slid back and forth by rotating the rotary knob 27 provided at the end of the rotary screw 26 to rotate the rotary screw 26 (direction of arrow X in FIG. 3). In FIG. 2, reference numeral 28a is a fixing screw, and reference numeral 28b is a fixing knob. The fixing screw 28a is turned to lock and unlock the cross roller way 29, thereby restricting the slider 22 to be fixed. Then, after moving the slider located below the slider assembled in two stages (for example, the X direction), the slider at the lower position is fixed by the fixing screw 28a, and the other slider (located above) is moved. Then, one of them is moved (for example, a movement in the Y direction orthogonal to the X direction) to perform the XY movement.

The expandable pole 30 of this embodiment is vertically arranged on the XY moving table 20, as shown in FIG. A plurality of pipes can be fitted inside the expandable pole 30, and a horizontal arm 41 constituting a GPS antenna holding section 40 is detachably arranged at the upper end of the expandable pole 30. It Although the extendable pole 30 is detachable in this example and is configured to be assembled at the time of use, it may be assembled on the XY moving table 20 as a horizontal moving means in advance.

The GPS antenna holding portion 40 of this example is composed of a horizontal arm 41, a balance weight 42, and an antenna connecting portion 43. The horizontal arm 41 of this example is attached to the upper end of the expandable pole 30 at a substantially central position, and one end of this horizontal arm 41 has a vertical penetrating portion which constitutes an antenna connecting portion 43, as shown in FIG. A hole 43a is provided, a horizontal fixed knob arrangement hole 43b is formed in the through hole 43a, and an antenna fixing knob 44 having a piece 44a at the tip from the fixed knob arrangement hole 43b is arranged. ing. A balance weight 42 is provided on the other end of the horizontal arm 41.

In the GPS antenna 1 of this example, a connecting portion 2 is formed in the lower part of the central axis, and the connecting portion 2 is connected to the antenna connecting portion 43 so that the GPS antenna 1 makes the radio wave receiving surface 3 face upward. It is fixed. GPS antenna 1
The connecting portion 2 is a connecting shaft fitted in the through hole 43a, and the constricted portion 2a is formed in the connecting portion.
The GPS antenna 1 is fixed by closely fixing the constricted portion 2a and the piece portion 44a.

In the lower part of the antenna connecting portion 43,
A cylindrical laser cover 45 which surrounds the laser tube 60 and is supported by the horizontal arm 41 and extends downward is fixed. And in the laser cover 45, 2
A laser tube 60 is suspended and supported via a shaft gimbal 50.

The laser tube 60 of this embodiment is a He-Ne laser tube 60 capable of emitting a laser beam from the lower end, and the vertical state of the laser tube 60 is provided between the outer circumference of the lower end of the laser tube 60 and the inner circumference of the laser cover 45. A sensor 61 for detecting is provided. That is, four sensors 61 are provided between the laser tube 60 and the laser cover 45 in the circumferential direction, and connection switches 62 are provided so as to face the sensors 61. When the laser tube 60 deviates from the vertical state, the switch 62 at the predetermined position is turned on, and it is understood that the laser tube 60 is not in the vertical state, and the laser tube 60 does not operate.

In FIG. 1, symbol K is a circular bubble tube, symbol P.
Is a reference point (measurement point), reference numeral 63 is a power cable for the laser tube 60, reference numeral 64 is a signal cable for outputting a signal received by the GPS antenna 1, reference numeral W is a wire rope, and the pole 30 is extended to extend upward. It is for fixing the pole 30 so that the pole 30 does not swing due to wind pressure or the like when the pole 30 is extended.

Next, the operation of the GPS antenna supporting device S having the above structure will be described. When the GPS antenna support device S is not used, the retractable pole 30 is contracted, and the XY moving table 20 and the horizontal arm 4 are retracted.
1, the balance weight 42 and the GPS antenna 1 are not attached.

In use, the tripod 11 is first placed at a position near the measuring point P which is the reference point. The GPS is attached to one end of the horizontal arm 41 of the extendable pole 30.
The antenna 1 is attached and the extendable pole 30 is extended. In this example, the horizontal arm 41 is not attached to the tip of the expandable pole 30 in advance, but the horizontal arm 41 may be attached to the tip of the expandable pole 30 in advance and fixed. Good. Further, the balance weight 42 is also detachable and may be attached in advance or may be attached at the time of use.

Next, as leveling means, leveling screw 24 (2
4a, 24b) to level the XY table 20. Leveling is performed by rotating the leveling screws 24a and 24b simultaneously in the forward and reverse directions so that the base 21 becomes horizontal.
Do it while watching.

Next, the XY moving table 20 which is the leveled horizontal moving means is slid so that the laser light emitted from the laser tube 60 coincides with the measuring point P, and the horizontal arm 41 as the supporting means. To move. This positions the central axis of the GPS antenna 1 on the reference point. At this position, the expandable pole 30 is stretched by a wire rope W from a predetermined position (3 or 4 positions) in the circumferential direction, and the wire rope W prevents the expandable pole 30 from swinging.

At this time, the laser tube 60 is held vertically by the gimbal 50 just below the central axis of the GPS antenna 1, so that the laser light emitted from the laser tube 60 coincides with the reference point (measurement point) P. The GPS antenna 1 can be positioned by the XY movement table 20. As a result, the laser tube 60 is held vertically by the gimbal 50, and
The sensor 61 can maintain the vertical state, and the central axis of the GPS antenna 1 whose central axis coincides with that of the laser tube 60 can be positioned vertically above the reference point (measurement point) P.

In other words, a laser axis is hung on a biaxial gimbal 50 which is coaxial with the antenna axis which is the center of the antenna, and the laser axis is a touch sensor (vertical detection sensor) integrally attached to the center of the antenna. ), By adjusting the center of the antenna, the center of the antenna and the laser axis can be aligned on the same line,
The axis will indicate the vertical direction.

As described above, since the GPS antenna 1 is arranged at a position eccentric to the expandable pole 30 and can be moved by the XY table 20, the expandable pole 30 is previously set as the reference point ( (Measurement point) Even if it cannot be located right above P, it is possible to expand and contract the pole 30
The GPS antenna 1 can be positioned above the measuring point by locating the horizontal arm 41 extending horizontally from above the measuring point.

Since the laser tube 60 is held vertically by the gimbal 50 just below the GPS antenna connecting portion 43, the laser beam emitted from the laser tube 60 is made to coincide with the reference point (measurement point) P by X-. The GPS table 1 can be positioned using the Y moving table 20.

As described above, in the conventional GPS antenna supporting technique, the reference point (measurement point) P is located at the position close to the structure B.
Is provided, the structure B interferes and the GPS antenna 1 cannot be installed right above the reference point (measurement point) P,
Although there was a state where it could not be received due to the shadow of a tree, in the above embodiment, the horizontal arm 41 extends from the position of the extendable pole 30 and the GPS antenna 1 carried by the horizontal arm 41 is used as a reference point (measurement point) P. It can be positioned directly above and can receive. In the above embodiment, the tripod 11 is a special one having a short leg portion, but the tripod 1 for ordinary surveying is used.
1 may be used.

[0033]

According to the GPS antenna supporting apparatus of the present invention, the horizontal moving means disposed via the leveling means provided on the gantry, and the extendable pole extending vertically from the horizontal moving means. Since the GPS antenna holding portion provided at the end of the horizontal arm extending horizontally from the upper end of the pole and the laser tube suspended and supported via the gimbal below the GPS antenna holding portion are provided. , When the GPS antenna is attached, the GPS antenna is located eccentric to the extendable pole on the pedestal, so the extendable pole cannot be positioned directly above the reference point (measurement point). Even at the point position, the GPS antenna can be positioned above the measurement point by positioning the horizontal arm extending horizontally from the upper end of the pole directly above the reference point (measurement point).
Further, since the laser tube is suspended and supported via the gimbal below the GPS antenna holding section and is always held in the vertical state, the laser beam emitted from the laser tube should match the reference point (measurement point). GPS using horizontal movement means
The antenna can be positioned.

As described above, according to the present invention, even if a measuring point is near a building or the like, and even if it is behind a tree, the height can be raised to a high level. An antenna can be installed and reception can be easily performed.
Further, it can be used as an alignment fixture with high vertical accuracy without being affected by bending when the support pipe extends.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a GPS antenna support device.

FIG. 2 is a sectional view of a main part of a horizontal moving unit.

FIG. 3 is a sectional view of a main part of a horizontal moving unit.

FIG. 4 is a cross-sectional view of an essential part of FIG.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is an explanatory diagram of a leveling mechanism.

FIG. 7 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 GPS antenna 11 Stand (tripod) 20 Horizontal moving means (XY moving table) 30 Expandable pole 40 GPS antenna holding part 41 Horizontal arm 50 Gimbal 60 Laser tube S GPS antenna support device

Claims (3)

[Claims] 1. A horizontal moving means arranged via a leveling means provided on a pedestal, an extendable pole vertically provided on the horizontal moving means, and a horizontal arm extending horizontally from an upper end portion of the pole. A GPS antenna holding part provided at the end of the
A GPS antenna supporting device, comprising: a laser tube suspended and supported via a gimbal below the GPS antenna holding portion. 2. The GPS antenna according to claim 1, wherein a sensor for detecting a vertical state of the laser tube is provided between the laser tube and a cylindrical body surrounding the laser tube and supported by a horizontal arm. Support device. 3. An X- provided on a mount via leveling means.
A Y-moving device, an extendable and retractable supporting device having a horizontal member vertically disposed on the XY-moving device and extending horizontally from an upper end, and a center of the GPS antenna at the end position of the horizontal member. A vertical measuring device that coincides with the intersection of the axis gimbals and is vertically suspended from the two-axis gimbals, and a detection unit that detects the vertical state of the vertical measuring device are provided. At the same time, the supporting device is moved by the XY moving device leveled by the leveling means to position the center of the GPS antenna on the reference point and position the center of the GPS antenna vertically above the reference point. Arrangement method of GPS antenna.