JP2885172B2 - CS antenna mounting method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method and an apparatus for mounting a CS antenna having an azimuth adjustment mechanism.

[0002]

2. Description of the Related Art FIG. 6 is a side view of a conventional CS antenna mounting device and a CS antenna mounted according to the example, and FIG. 7 is an enlarged top view of the CS antenna mounting device of FIG.

As shown in FIGS. 6 and 7, the reflector 1 is fixed at its back to a mounting bracket (A) 21 having a U-shaped cross section.
1, a mounting bracket (B) 22 having a U-shaped cross section is fixed by an elevation fulcrum bolt 9 and an elevation fixing bolt 10 serving as a rotation center axis at the time of elevation angle adjustment.

Here, an arc-shaped hole centering on the mounting hole of the bolt 9 is provided on the side surface of the mounting bracket (A) 21, and the bolt 10 is mounted through the hole. Thus, the elevation angle adjustment range is determined by the opening angle of the arc-shaped hole, and this opening angle is generally set to about 30 ° to 40 °. The mounting bracket (B) 2
An antenna support 8 is attached to 2 by a fastening 6 and an antenna support fixing bolt 7. Thus, the reflector 1 can adjust the angle of 360 ° in the azimuthal direction with the center axis of the antenna support 8 as the rotation axis.

[0005] The converter arm 2 and the converter mounting bracket 3 are for guiding the CS converter 5 and the feed horn 4 to the focal length of the reflector 1.

[0006]

The current CS broadcasting is performed using four communication satellites arranged at intervals of 4 mm, respectively. However, since the transmission power is small, the receiving antenna is used. An antenna having a larger diameter than the antenna for BS, that is, an antenna having sharp directivity is used. Therefore,
It is difficult to catch the target satellite among the four satellites, and in many cases, the direction is mistakenly adjusted to the adjacent satellite and the direction is adjusted again. This is seen not only by general end users but also by a contractor who performs antenna direction adjustment and installation work using a dedicated device such as a level checker.

Therefore, an object of the present invention is to solve the above-mentioned problem by adjusting the direction of a receiving antenna to an approximate direction, receiving a radio wave from any satellite, and then receiving the radio wave. A CS that specifies whether or not the satellite is the target satellite by a simple method and, when the received satellite is different from the target satellite, implements each of the methods for easily adjusting the azimuth angle. An antenna mounting method and apparatus are provided.

[0008]

SUMMARY OF THE INVENTION A CS antenna mounting method according to the present invention is characterized in that a CS broadcast is received from four communication satellites arranged at an interval of 4 °, respectively, so that the axis of an antenna support is rotated about an axis. A method for mounting a CS antenna that adjusts the azimuth direction, wherein finely adjusting the azimuth angle by rotating the substantially cylindrical body in the azimuth direction about a second rotation axis parallel to the rotation axis; a step of ± 8 ° limit the rotation range of the fine adjustment, have a step of temporarily locking at ± 0 °, fine adjustment, a generally cylindrical body, the temporary locking of ± 0 °
To the left or right twice and to the other in 4 ゜ units from the position
The signal received by the step of rotating within a total of three times
Transition point of presence or absence of any of the predefined patterns
Is used to determine the current receiving satellite
Done.

[0009]

[0010] The CS mounting apparatus of the present invention provides a CS mounting system from four communication satellites which are arranged at an interval of 4 °.
A mounting system of CS antenna has an azimuthal adjustment mechanism that the axis of the antenna struts and the rotary shaft for fixing the mounting equipment of CS antenna for receiving broadcast, a rotating shaft of the adjusting mechanism An azimuth angle fine adjustment mechanism for rotating the roughly cylindrical body in an azimuth direction about a parallel second rotation axis;
A stop mechanism for limiting the rotation range of the fine adjustment mechanism to ± 8 ° and a lock mechanism for temporarily locking at ± 0 ° are provided in the mounting device, and the stop mechanism is a substantially cylindrical body.
Both ends of the notched string are in contact with each other by rotation
Inward stopper projections provided at both ends of the mounting bracket
The locking mechanism consists of a metal ball and this
A spring that presses the metal ball out of the roughly cylindrical body
A semi-spherical recess for semi-housing on the side and a spring
Cylindrical space provided in the mounting bracket to accommodate
And

[0011]

[0012]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view of an embodiment of a CS antenna mounting apparatus of the present invention and a CS antenna mounted according to the embodiment. FIG. 2 is an enlarged top view of the CS antenna mounting apparatus of FIG. Is an enlarged cross-sectional view taken along line CC of the CS antenna mounting device of FIG. 1, FIG. 4 is an enlarged bottom view of the CS antenna mounting device of FIG. 1, and FIG. (B) is a table showing the relationship between the fine adjustment angle of the azimuth angle of the embodiment of the present invention with respect to the satellite of (a) and the specified receiving satellite.

In the CS antenna mounting apparatus of the present invention, one end of a cylinder is provided with an azimuth angle adjusting mechanism including a fastening member 6 and an antenna column fixing bolt 7 using the axis of a conventional cylindrical column 8 as a rotation axis. And a cylindrical rotary body (hereinafter, simply referred to as a cylindrical rotary body) 14 having a structure in which an antenna support is in contact with the cut surface, and a cylindrical rotary body 14 which is inscribed in the cylindrical rotary body 14 and whose upper surface has T A mounting bracket (B) 13 provided with a letter-shaped lid and a bottom surface of the mounting bracket (B) 13 for preventing the cylindrical rotating body 14 from dropping off the bottom surface of the mounting bracket (B) 13 after mounting. A T-shaped bottom plate 15 to be attached is disposed, and a bolt 16 mounted on the central axis of the cylindrical rotating body 14 by penetrating the bottom plate 15, the mounting bracket (B) 13 from the bottom surface, and the bolt 16. Nut 1 to fix from top The are provided, respectively.

Here, at the center of the cylindrical rotating body 14,
As shown in FIG. 3, a semi-spherical recess that fits into the metal ball 19 is provided, and a mounting space for the metal ball 19 and the spring 20 is provided in the mounting bracket (B) 13 that circumscribes the cylindrical rotating body 14. is there. Thereby, the cylindrical rotating body 1
4 is rotated inside the mounting bracket (B) 13, the cylindrical rotator 14 moves to a position (± 0
(仮 direction), the temporary lock state is established.

On the other hand, the mounting bracket (B) 13 is provided with stopper projections 13a and 13b for limiting the rotation range of the cylindrical rotating body 14 inscribed to ± 8 °. The stopper projections 13a and 13b hit the notched strings of the cylindrical body 14 when the cylindrical rotor 14 rotates 8 ° to the left and right, respectively, and stop the rotation. The mounting bracket (B) 13
Is mounted on the mounting bracket (A) 12 by the elevation fulcrum bolt 9 and the elevation fixing bolt 10, and an elevation angle adjustment mechanism is formed by a method similar to the conventional method.

With the above configuration, after capturing any one of the CS satellites using the conventional elevation / azimuth adjustment mechanism, it is mounted on the rotation axis of the cylindrical rotating body 14 in the azimuth angle fine adjustment mechanism. By loosening the nut 17 for fixing the bolt 16 and rotating the cylindrical rotator 14 in the −8 ° to + 8 ° direction to plot the presence or absence of the received signal, as described later, It can be easily identified. If the receiving satellite is not the target satellite,
After rotating the cylindrical rotator 14 by the angle difference, the nut 17 is tightened to complete the antenna direction adjustment.

Next, the operation of the CS antenna mounting device of the present invention will be described with reference to FIG.

FIG. 5 (a) shows the arrangement status of the CS satellites used in the current CS broadcast in orbit T. Satellites A to D are arranged at intervals of 4 °. On the other hand, FIG. 5B shows a correspondence table for specifying any one of the satellites A to D in FIG. 5A when the CS antenna mounting device of the present invention is used. Now, it is assumed that the receiving antenna is pointed in the direction of the CS satellite, a temporary direction adjustment is performed, and the signal is received from any one of the satellites A to D. Here, after loosening the nut that fixes the movable part of the azimuth angle fine adjustment mechanism provided in the antenna mounting device so that the azimuth angle can be finely adjusted, the azimuth angle fine adjustment movable parts are respectively set. Rotate to the left and right to check for the presence of a received signal.

At this time, the rotation range of the movable part is ± 8
Is set to 、, and in the ± 0 ° direction, the movable part is set to be provisionally locked. Therefore, when the movable part is located in the middle (4 °) between the temporary lock and the ± 8 ° direction. The presence or absence of the received signal is plotted with ×, and the received satellite can be specified by comparing the pattern of パ タ ー ン with the pattern shown in FIG. 5B. The satellite currently being captured is determined based on which of the four patterns shown in FIG. 5B corresponds to which pattern. Specifically, the transition point of the presence / absence of the received signal can be ascertained. For that purpose, the transition point can always be grasped by performing three operations of clockwise 4 ° and 8 ° and counterclockwise 4 ° with reference to ± 0 °, or the number of operations less than that, so the satellite can be determined. it can. Note that, as is clear from FIG.
It is needless to say that the same purpose can be achieved by three operations of ゜, 8 ゜, and clockwise 4 回.

If the receiving satellite is different from the target satellite, the movable part of the azimuth angle fine adjustment mechanism is rotated by the angle difference (an integer multiple of 4 °) between the receiving satellite and the target satellite. This makes it possible to easily catch the target satellite.

[0022]

As described above, according to the present invention, apart from the conventional azimuth adjustment mechanism, the adjustment range is set to ± 8 °, and the azimuth at which the movable portion is temporarily locked in the ± 0 ° direction. By having an angle fine adjustment mechanism, 4
When receiving from the original CS satellite, after receiving one of the satellites according to the conventional antenna direction adjustment method, it is possible to specify in a simple manner whether or not the satellite is the target satellite. Even if is different from the target satellite, there is an effect that it is possible to provide a CS antenna mounting method and apparatus capable of easily adjusting the azimuth angle by using the azimuth angle fine adjustment mechanism.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a CS antenna mounting device of the present invention and a CS antenna mounted according to the embodiment.

FIG. 2 is an enlarged top view of the CS antenna mounting device of FIG.

FIG. 3 is an enlarged sectional view taken along line CC of the CS antenna mounting device of FIG. 1;

FIG. 4 is an enlarged bottom view of the CS antenna mounting device of FIG. 1;

FIG. 5A is a diagram showing an orbital arrangement of a CS satellite,
(B) is a table showing the relationship between the fine adjustment angle of the azimuth angle of this embodiment with respect to the satellite of (a) and the specified receiving satellite.

FIG. 6 is a side view of a conventional CS antenna mounting device and a CS antenna mounted by the example.

FIG. 7 is an enlarged top view of the CS antenna mounting device of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reflector 2 Converter arm 3 Converter mounting bracket 4 Feed horn 5 CS converter 6 Tightening bracket 7 Antenna pole fixing bolt 8 Antenna pole 9 Elevation fulcrum bolt 10 Elevation angle fixing bolt 11 Reflector fixing screw 12, 21 Mounting bracket (A) 13 , 22 Mounting bracket (B) 13a, 13b Stopper protrusion 14 Cylindrical rotating body 15 Bottom plate 16 Bolt for fixing azimuth angle fine adjustment mechanism 17 Nut for fixing azimuth angle fine adjustment mechanism 18 Bottom plate fixing bolt 19 Metal ball 20 Spring T Stationary satellite Orbit

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01Q 15/14 H01Q 1/12 H01Q 3/04 H01Q 19/12-19/17

Claims (2)

(57) [Claims] 1. An azimuth control system in which an azimuth direction is adjusted with an axis of an antenna support as a rotation axis in order to receive CS broadcasts from four communication satellites arranged at intervals of 4 °.
A method of mounting S antennas, the method comprising finely adjusting the azimuth angle of the substantially cylindrical body is rotated azimuthally around the rotation axis and the second axis of rotation parallel to the rotation range of the fine adjustment a step of ± 8 ° limit, have a step of temporarily locking at ± 0 °, the fine adjustment, the generally cylindrical body, the temporary locking of ± 0 °
To the left or right twice and to the other in 4 ゜ units from the position
The signal received by the step of rotating within a total of three times
Transition point of presence or absence of any of the predefined patterns
Is used to determine the current receiving satellite
Done, how to attach the CS antenna. 2. Each of them is arranged at an interval of 4 °.
CS antenna that receives CS broadcasts from four communication satellites
Rotate the axis of the antenna post to fix the mounting device
The CS antenna having an azimuth direction adjusting mechanism.
A tener mounting device, wherein a center of rotation of a second rotation axis parallel to the rotation axis of the adjustment mechanism is
Azimuth fine adjustment to rotate a roughly cylindrical body in the azimuth direction
Adjustment mechanism and the rotation range by the fine adjustment mechanism are limited to ± 8 °
And a temporary lock at ± 0 °
A lock mechanism is provided in the mounting device, and the stopping mechanism is provided at both ends of the cut string of the substantially cylindrical body.
Part and the mounting bracket so that the two ends contact by rotation.
With the inward stopper projections provided at both ends,
The locking mechanism comprises a metal ball and a spur for pressing the metal ball.
A ring and the outer surface of the generally cylindrical body with the metal ball
A semicircular recess for semi-accommodation in the
Cylindrical space provided in the mounting bracket to accommodate
A CS antenna mounting device.