JP3844953B2 - Antenna installation method and antenna installation apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an antenna installation method for attaching a parabolic antenna to a support pole using an antenna installation device and adjusting the attitude of the parabolic antenna using a target scope.
[0002]
Further, the present invention is an antenna installation configured to be interposed between a support pole and a parabolic antenna, to attach the parabolic antenna to the support pole, and to adjust the attitude of the parabolic antenna using a target scope. Relates to the device.
[0003]
[Prior art]
In a PTP (Point To Point) subscriber wireless system, a subscriber line between a base station and a base station or between a base station and a user (building, private house) is wirelessly using a parabolic antenna facing each other. It is configured by communication.
[0004]
As shown in FIG. 6, the parabolic antenna A is attached to a support pole P standing on a rooftop of a building, for example, via an antenna fixture (antenna installation device) B.
[0005]
Here, when installing the parabolic antenna A, the antenna fixture B is first attached to the support pole P, and then the parabolic antenna A is attached to the antenna fixture B.
[0006]
On the other hand, it is necessary to adjust the direction of the parabolic antenna A so as to face the parabolic antenna on the other side.
[0007]
Therefore, the target scope S is attached to the outer edge portion of the parabolic antenna A, and the direction of the parabolic antenna A together with the antenna fixture B is adjusted with respect to the support pole P so that the target scope S catches the center of the parabolic antenna on the other side. ing.
[0008]
[Problems to be solved by the invention]
By the way, since radio waves with parabolic antennas use high-frequency waves with narrow directivity, it is desirable that the pair of opposing parabolic antennas face each other with their center axes aligned.
[0009]
However, as shown in FIGS. 6 and 7, the optical axis (center axis) s of the target scope S attached to the outer edge of the parabolic antenna A and the central axis a of the parabolic antenna A do not coincide with each other. Even if the scope S captures the center of the counterpart parabolic antenna A ′, the central axis a of the parabolic antenna A and the central axis a ′ of the counterpart parabolic antenna A ′ do not coincide with each other. The parabolic antenna A could not be accurately installed to face the
[0010]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an antenna installation method and an antenna installation apparatus capable of accurately installing a parabolic antenna.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, an antenna installation method according to the present invention is the antenna installation method in which a parabolic antenna is attached to a support pole using an antenna installation device, and the attitude of the parabolic antenna is adjusted using a target scope. A step of attaching the target scope to the antenna installation device to which the parabolic antenna is not attached, in a manner in which the center axis of the target scope coincides with the central axis of the parabolic antenna; and attaching the target scope to the antenna installation device And adjusting the attitude of the antenna installation device using the target scope; and adjusting the attitude of the antenna installation device and then attaching the parabolic antenna to the antenna installation device. It is a feature.
[0012]
In order to achieve the above object, an antenna installation apparatus according to the present invention is interposed between a support pole and a parabolic antenna, attaches the parabolic antenna to the support pole, and sets the attitude of the parabolic antenna to a target scope. In the antenna installation apparatus configured to be used and adjusted, a scope mounting portion that supports the target scope in a manner in which a central axis of the target scope and a central axis of the parabolic antenna coincide with each other, and the parabolic antenna is mounted. And an opening formed on the front plate for ensuring the visual field of the target scope.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
1 to 5 show an embodiment of an antenna installation device according to the present invention. The antenna installation device 1 includes a pole clamp 2 and an antenna bracket 3.
[0014]
The pole clamp 2 is a mechanism for attaching the antenna installation device 1 to the support pole P, the antenna bracket 3 is a member for attaching the parabolic antenna A to the antenna installation device 1, and the parabolic antenna A is the antenna installation device. 1 on the support pole P.
[0015]
Incidentally, the support pole P is erected and extended in a substantially vertical direction, for example, on the rooftop of a building.
The parabolic antenna A includes an antenna body Aa that is a reflecting mirror, and a radio unit Ab that is integrated with the antenna body Aa.
[0016]
The pole clamp 2 includes clamp plates 2A and 2B that are opposed to each other with the support pole P interposed therebetween, and four bolts 2C that are implanted in the clamp plate 2A and are loosely fitted to the clamp plate 2B. The nut 2D screwed to 2C is tightened, and the support pole P is clamped between the clamp plates 2A and 2B, thereby being fixed to the support pole P.
[0017]
The pole clamp 2 also functions as azimuth angle adjusting means for adjusting the azimuth angle of the parabolic antenna A, as will be described in detail later.
[0018]
On the other hand, the antenna bracket 3 includes a base plate 3a that is in close contact with the clamp plate 2A of the pole clamp 2 described above, and a front plate 3f to which the parabolic antenna A is attached, and further includes a base plate 3a and a front plate 3f. It has the upper board 3t and the lower board 3b as a reinforcing material to connect. The base plate 3a and the front plate 3f are formed so as to make a right angle to each other.
[0019]
The antenna bracket 3 is connected to the clamp plate 2A of the pole clamp 2 by a pin 3p penetrating the substantially central portion of the base plate 3a, and is rotatable with respect to the clamp plate 2A around the pin 3p. Is hindered.
[0020]
Further, the base plate 3a of the antenna bracket 3 is formed with a plurality of curved long holes 3h on the circumference centered on the pin 3p, and is threaded into the clamp plate 2A through the long holes 3h. The antenna bracket 3 can be fixed to the clamp plate 2A of the pole clamp 2 in a stationary manner by tightening the screw 3r.
[0021]
Thus, the antenna bracket 3 functions as an elevation angle adjusting means for adjusting the elevation angle of the parabolic antenna A because it can be rotated and fixed with respect to the clamp plate 2A of the pole clamp 2.
[0022]
In addition, the lower plate 3b of the antenna bracket 3 is provided with a scope mounting portion 3s for supporting the target scope S by bending a sheet metal connected to the lower plate 3b upward. In 3s, an attachment hole 3c through which a bolt (not shown) for attaching the target scope S passes, and an opening 3d for inserting a tool for operating the screw 3r are formed.
[0023]
The scope attaching portion 3s supports the target scope S in such a manner that the optical axis (center axis) s of the target scope S coincides with the center axis a of the parabolic antenna A.
[0024]
In other words, the scope attaching portion 3s is configured such that the optical axis s of the target scope S attached to the scope attaching portion 3s is the central axis a of the parabolic antenna A attached to the front plate 3f of the antenna bracket 3 in the installation work described later. Is formed to match.
[0025]
In addition, in order to make the optical axis s of the target scope S coincide with the central axis a of the parabolic antenna A, an appropriate position adjusting mechanism for finely adjusting the mounting position of the target scope S is installed in the scope mounting portion 3s. It goes without saying that it can be done.
[0026]
On the other hand, an antenna mounting hole 3e through which a bolt (not shown) for mounting the parabolic antenna A passes is formed in the front plate 3f of the antenna bracket 3, and the target scope S mounted on the scope mounting portion 3s. An opening 3o is formed for securing the visual field.
[0027]
The opening 3o is a round hole centered on the optical axis s of the target scope S or the central axis a of the parabolic antenna A attached to the front plate 3f, and has a sufficient area that does not obstruct the field of view of the target scope S. have.
[0028]
When the parabolic antenna A is installed on the support pole P using the antenna installation device 1 having the above-described configuration, first, as shown in FIG. 6A, the antenna installation device 1 to which the parabolic antenna A is not attached is installed. The target scope S is attached to the scope mounting portion 3 s of the antenna bracket 3 while being temporarily installed on the support pole P by the pole clamp 2.
[0029]
Here, the optical axis s of the target scope S attached to the scope attaching portion 3s coincides with the central axis a of the parabolic antenna A attached in a later process as described above.
[0030]
Note that the target scope S may be attached to the scope attaching portion 3s of the antenna bracket 3 in advance before the antenna installation device 1 is installed on the support pole P.
[0031]
Next, as shown in FIG. 6B, the direction of the antenna installation device 1 is adjusted so that the target scope S catches the center of the other parabolic antenna A ′.
[0032]
Here, the antenna clamp 1 is attached to the antenna installation device 1, that is, the antenna installation device 1 by slightly loosening the tightening of the pole clamp 2 in the antenna installation device 1 and rotating it around the support pole P extending substantially vertically. The azimuth angle of the parabolic antenna A can be adjusted.
[0033]
Moreover, the elevation angle of the parabolic antenna A attached to the antenna bracket 3 can be adjusted by loosening the tightening of the screw 3 r in the antenna installation device 1 and rotating the antenna bracket 3 with respect to the pole clamp 2.
[0034]
As described above, after adjusting the direction of the antenna installation device 1, the pole clamp 2 is tightened to fix the antenna installation device 1 to the support pole P, and the screw 3 r is tightened to fix the antenna bracket 3 to the pole clamp 2. .
[0035]
Next, as shown in FIG. 6C, the parabolic antenna A is attached to the front plate 3 f (see FIG. 5) of the antenna bracket 3 in the antenna installation device 1 using bolts (not shown).
[0036]
At this time, the direction of the antenna installation device 1 is adjusted using the target scope S by matching the optical axis s of the target scope S attached to the antenna installation device 1 with the central axis a of the parabolic antenna A as described above. After that, the central axis “a” of the parabolic antenna A attached to the antenna installation device 1 indicates the center of the parabolic antenna A ′ on the other side, so that the parabolic antenna A is accurately installed.
[0037]
The target scope S becomes unnecessary after the direction of the antenna installation device 1 is adjusted. Therefore, before the parabolic antenna A is attached to the antenna installation device 1 or after the parabolic antenna A is attached to the antenna installation device 1, It is removed from the antenna installation device 1 at any appropriate time.
[0038]
Here, in FIG. 6, the case where a parabolic antenna A is newly installed with respect to the already installed parabolic antenna A ′ has been described. However, a pair of opposing parabolic antennas A are simultaneously installed. In this case, the parabolic antenna A is installed as follows.
[0039]
First, the antenna installation device 1 is temporarily installed on the support pole P on which each parabolic antenna A is installed, and the target scope S is attached to each antenna installation device 1, and the target scope S is an antenna in the antenna installation device 1 on the other side. The direction of each antenna installation device 1 is adjusted so that the center of the opening 3o of the bracket 3 or the center of the tip (objective lens) of the target scope S on the other side viewed through the opening 3o is captured.
[0040]
After the direction adjustment of each antenna installation device 1 is completed, the parabolic antenna A is attached to each antenna installation device 1 in the same manner as the above-described embodiment, so that the central axis of each parabolic antenna A is the opposite side. The center of the parabolic antenna A is pointed, and thus each parabolic antenna A is accurately installed.
[0041]
The antenna installation method and the antenna installation apparatus according to the present invention can be applied very effectively not only to parabolic antennas constituting a PTP subscriber radio system but also to parabolic antennas constituting various communication systems. Needless to say.
[0042]
【The invention's effect】
As described above in detail, the antenna installation method according to the present invention is a process of attaching a target scope to an antenna installation apparatus to which a parabolic antenna is not attached in such a manner that the center axis of the target scope matches the center axis of the parabolic antenna. And, after attaching the target scope to the antenna installation device, adjusting the attitude of the antenna installation device using the target scope, and after adjusting the posture of the antenna installation device, attaching the parabolic antenna to the antenna installation device. Comprising.
According to the above configuration, after adjusting the attitude of the antenna installation device using the target scope by aligning the central axis of the target scope attached to the antenna installation device with the central axis of the parabolic antenna, this antenna installation The central axis of the parabolic antenna attached to the apparatus coincides with the central axis of the target scope, so that the parabolic antenna can be accurately installed.
[0043]
Further, the antenna installation device according to the present invention is formed on a scope mounting portion that supports the target scope in a manner in which the central axis of the target scope and the central axis of the parabolic antenna coincide with each other, and a front plate on which the parabolic antenna is mounted. And an opening for securing the field of view of the target scope.
According to the above configuration, the antenna installation device is adjusted by adjusting the attitude of the antenna installation device using the target scope when the center axis of the target scope supported by the scope mounting portion coincides with the central axis of the parabolic antenna. It is possible to accurately install the parabolic antenna attached to the.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of an antenna installation apparatus according to the present invention.
2 is a side view of the antenna installation device shown in FIG. 1. FIG.
FIG. 3 is a rear view of the antenna installation apparatus shown in FIG.
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is an overall perspective view of the antenna installation device shown in FIG. 1;
6A, 6B, and 6C are conceptual diagrams showing an antenna installation method according to the present invention.
7A and 7B are a plan view and a side view showing a conventional antenna installation mode, respectively.
FIG. 8 is a conceptual diagram showing a relative installation mode of a conventional antenna.
[Explanation of symbols]
1 ... Antenna installation device,
2 ... Pole clamp,
3. Antenna bracket,
3f ... Front plate,
3s ... scope attachment part,
3o ... opening,
P ... Support pole,
A ... Parabolic antenna,
a ... central axis,
S ... Target scope,
s: Optical axis (central axis).

Claims (2)

An antenna installation method for attaching a parabolic antenna using an antenna installation device to a support pole and adjusting the attitude of the parabolic antenna using a target scope,
Attaching the target scope to the antenna installation device to which the parabola antenna is not attached, in a manner in which the center axis of the target scope coincides with the center axis of the parabola antenna;
After attaching the target scope to the antenna installation device, adjusting the attitude of the antenna installation device using the target scope;
After adjusting the attitude of the antenna installation device, attaching the parabolic antenna to the antenna installation device;
An antenna installation method comprising: An antenna installation device configured to be interposed between a support pole and a parabolic antenna, to attach the parabolic antenna to the support pole, and to adjust the attitude of the parabolic antenna using a target scope,
A scope mounting portion that supports the target scope in a manner in which the central axis of the target scope and the central axis of the parabolic antenna coincide with each other;
Formed in a front plate to which the parabolic antenna is attached, an opening for securing a field of view of the target scope;
An antenna installation device comprising:

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