JP3124687U - GPS antenna pole upright collimation target - Google Patents

Abstract

A GPS capable of easily standing an antenna pole vertically at a measurement point even at the top of a mountain with a steep slope as a measurement point or where the surrounding area is troubled by trees. An antenna pole upright collimation target is provided.
In a GPS antenna pole upright collimating target device 5 in which an antenna pole 2 having a GPS antenna 1 mounted on the top thereof is vertically set up on a stone 3 serving as a measurement point, a large-diameter disk portion 8 and A truncated cone with one end face having the same outer diameter as the large-diameter disk part 8 and the other end face having the same outer diameter as the small-diameter disk part 9 between the smaller-diameter disk part 9 having a smaller outer diameter. The unit 10 is provided integrally to form the main body 7, and a plurality of collimating lines 12 continuous in the vertical direction are formed on the outer peripheral side surface of the main body 7 at intervals in the circumferential direction. It is attached to the top and bottom of the pole 2 and is adjusted so that the line of sight 12 at the center of the front looks like the vertical line of sight of the theodolite.
[Selection] Figure 1

Description

The present invention relates to a device for aligning the center of a GPS antenna pole in the vertical direction with a marking of a standard stone as a measurement reference.

GPS surveying measures position by receiving radio waves from artificial satellites. If there is a tree or the like that interferes with reception around the measurement point, it is avoided by attaching a GPS antenna to the upper end of the pole and raising it. At this time, it is necessary to fix with a wire or the like in a state where the mark of the reference stone and the center of the antenna coincide with each other in the vertical direction.

The following methods (1) to (4) are mainly used as a method for raising a conventional GPS antenna to a required height and fixing it at a position where the mark of the jewel is aligned with the center of the antenna in the vertical direction. It was done.

(1) A vertical ball is hung on the vertical line passing through the center of the GPS antenna through the antenna pole, and the position is adjusted so that the vertical ball or the line supporting it can be seen from the outside.
(2) At a plurality of points corresponding to the vertical line above and below the antenna pole, light is projected vertically from the upper side, and the light appearing on the lower side is adjusted to a position that matches the corresponding point.
(3) Between the GPS antenna and the antenna pole, a pointed member indicating a vertical line passing through the center of the antenna is provided, and a theodolite is installed in two directions in which the depression angle is 90 degrees radially from the mark of the headstone, Collimate the pointed member and the markings on the target stone, and adjust them so that they match in the vertical direction.
(4) A disk-shaped jig engraved with a positioning line extending in the radial direction from the pole axis is provided between the GPS antenna and the antenna pole, and the depression angle is 90 degrees in a radial direction from the mark on the headstone. A theodolite is installed, the positioning line and the marking of the target stone are collimated, and adjusted so as to coincide in the vertical direction (Patent Document 1).

However, the method (1) is not accurate because it cannot be confirmed that the line supporting the suspending ball is a straight line. Further, the method (2) has a problem that the accuracy of the vertical projection is deteriorated in proportion to the distance from the light projecting position to the light receiving position, and the position cannot be set accurately. In the methods (3) and (4), the standard stone is often on the top of a mountain with a steep slope, and the surrounding area is often troubled by trees. In order to collimate the inscription directly, select the location of the theodolite while avoiding obstacles such as trees in two directions that are higher than the reference stone and in two directions where the depression angle is 90 degrees radially from the reference mark It is difficult.
JP-A-8-285599

The present invention improves the above problem, and the antenna pole can be easily set up vertically at the measurement point, even if it is located on the top of a mountain with a steep slope or the surrounding area. The present invention provides a GPS antenna pole upright collimation target that can be installed.

The GPS antenna pole upright collimation target device according to claim 1 of the present invention is a GPS antenna pole upright collimation target device in which an antenna pole with a GPS antenna mounted on the upper portion thereof is installed vertically at a measurement point. Between the plate portion and the small-diameter disc portion having a smaller outer diameter, one end surface has the same outer diameter as the large-diameter disc portion, and the other end surface has the same outer diameter as the small-diameter disc portion. A head cone part is integrally provided to form a main body part, and a line of sight that is continuous in the vertical direction is formed on the outer peripheral side surfaces of the large-diameter disk part, the truncated cone part, and the small-diameter disk part. In this case, a plurality of lines are formed.

The GPS antenna pole upright collimating target device according to claim 2 of the present invention has a through-hole through which the antenna pole penetrates in the axial center of the main body of the collimating target device according to claim 1. It is characterized in that it is mounted so as to be movable up and down, and a support stopper is mounted on the antenna pole so as to be movable up and down so that the main body is rotatably supported.

The GPS antenna pole upright collimation target device according to claim 3 of the present invention is formed by forming a screw hole in the main body of the collimation target device of claim 1 and projecting a bolt from the tip of the antenna pole. It is characterized in that it is screwed into the screw hole and attached to the tip of an antenna pole, and further a GPS antenna is attached to the upper part of the main body.

According to the GPS antenna pole upright collimating target device according to claim 1 of the present invention, even if the head stone as a measurement point is at the top of a mountain with a steep slope or where the surrounding area is troubled by trees The collimation target attached to the top of the antenna pole is collimated with a theodolite, and one of the center lines of the collimation line that continues in the vertical direction appears to coincide with the vertical collimation line of the theodolite. By adjusting the inclination, the antenna pole can be erected vertically at the measurement point.

According to the GPS antenna pole upright collimation target device of claim 2, the collimation target device attached to the lower part of the antenna pole is adjusted to the lower limit height that can be seen from the theodolite, and the collimation target device is further rotated. Then, adjust the center line of the line of sight that is continuous in the vertical direction so that it looks straight when collimated with the theodolite. Even in a place where no direct observation is possible, it is possible to measure the center of the lower part of the antenna pole, that is, the vertical upper line of the mark of the stake.

According to the GPS antenna pole upright collimation target device according to claim 3, the antenna pole and the collimation target device are connected together, so that the work at the site is easy.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 shows a state in which GPS surveying is performed. An antenna pole 2 having a GPS antenna 1 attached to the upper end is erected on a headstone 3 as a measurement point, and a plurality of wires 4 stretched radially. I support it. Two GPS antenna pole upright collimating targets 5 and 5 are provided above and below the antenna pole 2, and lower portions thereof are supported by support stoppers 6 and 6.

As shown in FIGS. 2 to 4, the collimation target 5 has one end face between the main body portion 7 and the large-diameter disk portion 8 and the small-diameter disk portion 9 having a smaller outer diameter. A truncated cone portion 10 having the same outer diameter as the large-diameter disk portion 8 and the other end surface having the same outer diameter as that of the small-diameter disk portion 9 is integrally formed. A penetrating through hole 11 is opened. Further, on the outer peripheral side surfaces of the large-diameter disk portion 8, the truncated cone portion 10 and the small-diameter disk portion 9 of the main body portion 7, a plurality of line-of-sight lines 12 continuous in the vertical direction are provided at equal intervals in the 360-degree circumferential direction. The book is formed.

The support stopper 6 is formed in a disk shape as shown in FIG. 4, and a through hole 13 through which the antenna pole 2 passes vertically is formed at the center thereof. Further, a tightening bolt is provided from the side surface toward the through hole 13. 14 is attached.

As shown in FIG. 1, one collimation target 5 is attached to the upper portion of the antenna pole 2 with the large-diameter disk portion 8 facing upward, and the lower portion is supported by the support stopper 6. The other collimation target 5 is attached to the lower side of the antenna pole 2 and is raised to a lower limit height that can be seen from the theodolite. When looking down from the theodolite, the large-diameter disc portion 8 is placed downward, and from the theodolite. When looking up, the position is held by the tightening bolt 14 of the support stopper 6. Further, the antenna pole 2 or the collimation target 5 is rotated so that the center collimation line 12 is adjusted to be positioned in front of the theodolite with the two upper and lower collimation targets 5.

In this state, a theodolite is installed near the target stone 3 as a measurement point, and one collimation target 5 attached to the lower part of the antenna pole 2 is collimated, and a continuous view in the vertical direction at the center of the front is provided. Look at the quasi-line 12. If the antenna pole 2 is not erected vertically, a collimation line 12 connecting the large-diameter disk part 8 of the main body part 7 to the truncated cone part 10 and the small-diameter disk part 9 is vertically connected. It appears to cross diagonally with respect to the vertical line of sight.

In such a case, the length of the wire 4 that supports the antenna pole 2 in a radial manner so that the line of sight 12 continuous in the vertical direction of the main body 7 appears to coincide with the vertical line of sight of the theodolite. Adjust the inclination of the antenna pole 2 by adjusting. Thus, if the line of sight 12 continuous in the vertical direction at the center of the front of the main body 7 appears to coincide with the vertical line of sight of the theodolite, the antenna pole 2 is set up vertically, and the theodolite becomes the antenna pole. 2, that is, a state in which the vertical upper line of the marking of the target stone 3 as a measurement reference is collimated.

In order to more accurately stand vertically, the collimation direction of the theodolite is moved vertically upward, the other collimation target 5 attached to the upper side of the antenna pole 2 is collimated, and similarly the front thereof A line of sight 12 continuous in the vertical direction at the center is seen. If the antenna pole 2 is not erected vertically, the continuous line of sight 12 connecting the large diameter disc portion 8, the truncated cone portion 10 and the small diameter disc portion 9 is in relation to the vertical line of sight of the theodolite. Appear to cross diagonally. In this case, the length of the wire 4 supporting the antenna pole 2 is adjusted to adjust the inclination of the antenna pole 2 so that the vertical line of sight 12 coincides with the vertical line of sight. By making it visible, the antenna pole 2 is erected vertically. Thus, when the verticality is confirmed above and below the antenna pole 2, the antenna pole 2 is set up vertically on the stone 3 as a measurement point.

FIG. 5 shows another embodiment of the present invention, in which a collimation target 5 attached to the upper part of the antenna pole 2 is fixed. In this case, a bolt 16 protrudes from the tip of the antenna pole 2, and the collimation target 5 has a screw hole 17 in the small-diameter disk part 9 of the main body part 7 and an upper center of the large-diameter disk part 8. Bolts 16 are provided in a protruding manner. Further, a screw hole 17 is formed at the bottom of the GPS antenna 1.

The GPS antenna pole upright collimation target 5 having the above-described configuration is configured such that a bolt 16 projecting from the tip of the antenna pole 2 is screwed into a screw hole 17 formed on the bottom surface of the collimation target 5 to further collimate the target. A bolt 16 projecting from the upper surface of 5 is screwed into a screw hole 17 formed at the bottom of the GPS antenna 1, and the antenna pole 2, the collimation target 5 and the GPS antenna 1 are integrally connected. The collimation target 5 attached to the lower side of the antenna pole 2 is moved up and down depending on the condition of surrounding obstacles, so that it can be moved up and down as in FIG.

It is a front view which shows the state which installed the GPS antenna pole by one Embodiment of this invention on the stone. It is the perspective view which looked at the GPS antenna pole upright collimation target device of FIG. 1 from upper direction. It is the perspective view which looked at the GPS antenna pole upright collimation target device of Drawing 2 from the lower part. It is sectional drawing which shows the state which attached the GPS antenna pole upright collimation target device of FIG. 3 to the antenna pole. It is sectional drawing which shows the state which attached to the antenna pole the GPS antenna pole upright collimation target by other embodiment of this invention.

Explanation of symbols

1 GPS antenna
2 Antenna pole
3 Headstone
4 wires
5 GPS antenna pole upright collimation target
6 Support stopper
7 Body
8 Large diameter disc
9 Small diameter disc
10 truncated cone
11 Through hole
12 Line of sight
13 Through hole
14 Tightening bolt
16 volts
17 Screw hole

Claims (3)

In the GPS antenna pole upright collimation target that vertically mounts the antenna pole with the GPS antenna mounted on the measurement point, between the large-diameter disk part and the small-diameter disk part with a smaller outer diameter. , One end face has the same outer diameter as the large-diameter disk part, and the other end face integrally forms a truncated cone part having the same outer diameter as the small-diameter disk part to form a main body part, and the large-diameter circle A GPS antenna pole upright collimation target characterized in that a plurality of collimating lines continuous in the vertical direction are formed at intervals in the circumferential direction on the outer peripheral side surfaces of the plate portion, the truncated cone portion and the small diameter disc portion. vessel. A through hole through which the antenna pole penetrates is formed in the shaft core of the GPS antenna pole upright collimation target device according to claim 1, and the antenna pole is attached to the antenna pole so as to be movable up and down, and a support stopper is provided on the antenna pole. A GPS antenna pole upright collimating target device, which is mounted so as to be movable up and down and rotatably supports the main body. A screw hole is formed in the main body of the GPS antenna pole upright collimation target device according to claim 1, a bolt is protruded from the tip of the antenna pole, and the bolt is screwed into the screw hole to be attached to the tip of the antenna pole. A GPS antenna pole upright collimating target, characterized in that the GPS antenna is attached to the upper part of the main body.