JPH0661729A - Direction adjustment device for radio wave reflecting plate - Google Patents

Abstract

PURPOSE:To simply adjust the direction in a short time in the tentative installation of a portable radio wave reflecting plate used for relaying a radio channel with respect to the direction adjustment device for the radio wave reflecting plate used for relaying the radio channel. CONSTITUTION:The radio wave reflecting plate 10 is provided with an azimuth adjustment device 11 consisting of a mount base 1 having a base plane in parallel with a radio wave reflecting plane of the radio wave reflecting plate 10, a vertical rod 2 at a right angle of the base plane of the mount base, a couple of azimuth indication rods 3-1,3-2 opened symmetrically to the left and right with respect to the rod shaft center on a base point of the rod shaft center provided to a root of the vertical rod, and a couple of angle adjustment rods 4-1,4-2 connecting a fulcrum provided respectively on a couple of the azimuth indication rods at an equal distance from the base point and a moving point moving on the axis of the vertical rod with an equal length and open symmetrically to the left and right with respect to the rod axis center of the vertical rod by the movement of the moving point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for adjusting the direction of a radio wave reflector used as a relay for a wireless line. Recently, a microwave multiplex wireless system has appeared in which a line is easily constructed by using a small and lightweight portable wireless device. A small portable radio wave reflector is used as a parasitic relay device on the line. However, this radio wave reflector requires a wide range of movable width of the direction adjusting means because it is used in a temporary installation state at the installation site, but on the other hand, it takes time to adjust the direction. Therefore, there is a demand for a means that can easily adjust the direction of the radio wave reflection plate in a short time.

[0002]

2. Description of the Related Art A conventional radio wave reflector that is fixed in a fixed position is large in size, and after accurately measuring the azimuth of a radio device, it is installed on a foundation, and therefore a movable width (angle) for adjusting the direction. Is a few degrees narrow and the direction can be easily adjusted. On the other hand, when repairing an optical transmission line, it is required to build a wireless line in a short time.Therefore, a small and lightweight portable wireless device should be used, and the relaying radio wave reflection plate should also be small and portable. I'm using it.

This portable radio wave reflection plate is easier to install if the installation angle can be largely changed. Therefore, an angle formed by connecting the two installation points without measuring the azimuth of the portable radio device at the two installation points. That is, the direction of the reflection surface of the radio wave reflection plate is adjusted by trial and error so that the incident angle and the reflection angle are substantially equal, and they are temporarily installed.

[0004]

However, in such a portable radio wave reflection plate as described above, since the movable angle is large and there is no direction adjusting device which can be used particularly easily, the direction of the portable radio wave reflection plate is tried and errored. There was a problem that it was difficult to make adjustments, and it took a long time.

In view of the above problems, it is an object of the present invention to provide a device for adjusting the direction of a radio wave reflector, which can easily adjust the direction in a short time when temporarily installing a portable radio wave reflector used for relaying a wireless line. And

[0006]

In order to achieve the above object, in the radio wave reflector direction adjusting device of the present invention, as shown in the schematic view of FIG. A mounting base 1 having a flat base surface 1a, a vertical bar 2 perpendicular to the base surface 1a of the mounting base 1, and a base point O on the axial center provided at the base of the vertical bar 2 to the left and right of the shaft center. A pair of azimuth indicating rods 3-1, 3-2 that open symmetrically, and the pair of azimuth indicating rods 3-1, 3-2
2 fulcrums C and D provided at equal distances from the base point O and a moving point P moving on the axis of the vertical rod 2 are connected to each other with the same length, and the axis of the vertical rod 2 is moved by moving the moving point P. A pair of angle adjustment rods 4-1 and 4-2 that open symmetrically with respect to the heart
It consists of and.

[0007]

By constructing the direction adjusting device in this way, side OC = side OD, side PC = side P in FIG.
D, side AB ⊥ side OP (side AB corresponds to the base surface 1a), so ∠COP and ∠DOP with the vertical bar 2 created by the pair of direction indicator rods 3-1 and 3-2 Equally, ∠COP and ∠AOC and ∠DOP and ∠BOD have complementary relations, respectively, and ∠AOC and ∠BOD are always equal even if the moving point P moves to an arbitrary position on the vertical bar 2.

∠AOC and ∠BOD are radio wave reflection surfaces formed by connecting the two installation points X and Y of the portable radio device shown in the installation example diagram of FIG. 3 and the installation point (base point) of the radio wave reflection plate 10. Since the angles α and β with respect to the (base surface), that is, the angles α and β corresponding to the incident angle and the reflection angle are equal, one of the azimuth indicator rods 3-1 that is, the side, based on the base point O in FIG. The OC is directed to one installation point X, the moving point P is moved with the side OC as a reference, and the other direction indicator rods 3-1 and 3-2, that is, the side OD is aligned with the other installation point Y. AB, that is, the direction of the base surface 1a can be easily adjusted.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The gist of the present invention will be described in detail below with reference to the embodiments shown in the drawings. As shown in the front view and side view of the direction adjusting device according to the present invention in FIGS. 2 (a) and 2 (b), the radio wave reflection plate 10 includes a separate direction adjusting device 11 as a direction adjusting jig.

The direction adjusting device 11 has a mounting base 1 having a base surface 1a parallel to the radio wave reflecting surface of the radio wave reflecting plate 10 and a base body 1a of the mounting base 1 which is integrally erected at a right angle and is long. A vertical rod 2 having a straight guide groove 2a bored in the direction axis and a center pin 5 protruding at a base point O (center of one edge of the mounting base 1) at the base, and one end pivotally attached to the center pin 5. Then, a pair of azimuth indicating rods 3-1, 3-2 that open symmetrically around the longitudinal axis of the vertical rod 2 and the center pin 5 for each of the pair of azimuth indicating rods 3-1, 3-2. One end is pivotally attached to fulcrums C and D, that is, fixing pins 6 and 7 equidistant from the moving point P, that is, a moving point P that moves along the linear guide groove 2a of the vertical rod 2, that is, sliding with a nut 8a. A pair of angle adjusting rods 4-1, which have the other end pivotally attached to the screw 8 and are symmetrically opened about the longitudinal axis of the vertical rod 2
It consists of 4-2 and. Since the direction adjusting device 11 is used as an adjusting jig, the mounting base 1 is further provided with a radio wave reflection plate.
A contact plate 9 for sandwiching 10 is attached, and after adjusting the direction, the nut 9b is fixed with the connecting screw 9a.

In the direction adjustment, as shown in the installation example of FIG. 3, first, one direction indicator rod 3-1 is fixed to a sturdy tripod (not shown) toward the installation point X of the one portable radio device. To do. Then, the slide screw 8 with the nut 8a loosened is moved along the linear guide groove 2a with the direction indicating rod 3-1 as a reference, and the other direction indicating rod 3-2 is interlocked to adjust the leg opening. The axis is aligned with the installation point Y of the other portable wireless device.

Then, the base surface of the mounting base 1 perpendicular to the vertical rod 2 naturally coincides with the angle to be adjusted, so that the mounting base 1 and the backing plate 9 sandwich the radio wave reflection plate 10 and the connecting screw 9a. Since the direction of the radio wave reflection plate 10 is fixed by fixing with, it is temporarily installed.

At this time, the incident angle α and the reflection angle β of the radio wave on the radio wave reflection surface of the radio wave reflection plate 10 become substantially equal. However, since this direction adjustment is a rough adjustment even if it gets tired, after the temporary installation of the radio wave reflection plate 10, the radio wave reflection surface is finely adjusted in the direction of actually transmitting and obtaining the maximum gain on the receiving side, and the setting is officially completed.

As shown in the drawing, if the center pin and the fixing pin are projected on the same side a little longer, they can be used as an aim and the direction indicator rod can be quickly adjusted to the target point.

This link mechanism adjusts the angle within one plane, but by moving the sight up and down, that is, moving the line of sight up and down even when the installation point of the portable radio device is out of the plane. You can easily adjust the direction roughly,
When the horizontal distance to the installation point of the portable radio device is large compared to the height difference, the elevation angle becomes small, so it may be ignored or roughly adjusted.

Further, the direction adjusting device of the above embodiment has been described as an adjusting jig for adjusting the direction of the radio wave reflecting plate, but the mounting base of the direction adjusting device itself is used as a radio wave reflecting plate and integrated with the link mechanism. It goes without saying that there is no problem.

[0017]

As described above in detail, according to the present invention,
Since the direction of the radio wave reflection plate can be easily adjusted, for example, it is applied to the installation work of a mobile radio wave reflection plate used for relaying a microwave multiplex wireless line constructed by a mobile radio device for relief of an optical transmission line. The direction adjustment can be easily performed in a short time, and the number of installation steps can be reduced, which is extremely useful in industry.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing the principle of a direction adjusting device according to the present invention.

FIG. 2 is a front view and a side view of an embodiment according to the present invention.

FIG. 3 is an installation example diagram of FIG.

[Explanation of symbols]

 1 is a mounting base 4-1,4-2 is an angle adjusting rod 1a is a base surface 10 is a radio wave reflecting plate 2 is a vertical rod 11 is a direction adjusting device 3-1,3-2 is a direction indicator rod

Claims (2)

[Claims] 1. A mounting base (1) having a base surface parallel to a radio reflection surface of a radio reflection plate (10), a vertical rod (2) perpendicular to the base surface of the mounting base (1), A pair of azimuth indicating rods (3-1, 3-2) that open symmetrically with respect to the axis at the base point on the axis provided at the base of the vertical rod (2) and the pair of azimuth indicating rods ( 3-1,3-2)
The fulcrum and the vertical bar that are equidistant from the base point above
The moving points that move on the axis of (2) are tied to each other with the same length, and by moving the moving points, a pair of angle adjusting rods (4-1 , 4-2) and a direction adjusting device for a radio wave reflector. 2. An apparatus for adjusting the direction of a radio wave reflection plate, wherein the mounting base body (1) itself according to claim 1 is a radio wave reflection plate (10).