JPH1022712A - Method and device for adjusting azimuth angle of satellite reception antenna - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily carry out the adjustment of an azimuth angle of a satellite reception antenna by finding an azimuth from the position of the sun and the time without using any azimuth magnet. SOLUTION: A base 5 fixed to a back side of a satellite reception antenna 1, a bracket 10 fitted to the base 5, a support 30 set to the inside of a cylindrical mount 11 of the bracket 10, a 1st reference mark, a scale plate 40 with a scale indicating a relationship between the 1st reference mark and a direction of a satellite at an azimuth matching time are used and a 2nd reference mark corresponding to the antenna azimuth is provided for the bracket 10 and the azimuth matching of the scale plate 40 is conducted by matching the 1st reference mark of the scale plate 40 placed on the top of the support with the azimuth of the sun. Then the 2nd reference mark is matched with the scale of the scale plate 40 corresponding to the azimuth of the satellite at the azimuth matching time to perform the azimuth matching while the position of the scale plate 40 is unchanged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite capable of easily and accurately adjusting the azimuth of a satellite receiving antenna for receiving a microwave transmission wave from a broadcasting satellite or a communication satellite. The present invention relates to a method and apparatus for adjusting the azimuth of a receiving antenna.

[0002]

2. Description of the Related Art Broadcasting satellites and communication satellites are geostationary satellites when viewed from the earth, and their relative position with the earth is constant.
Radio waves from broadcasting satellites and communication satellites are microwaves, and satellite receiving antennas configured with parabolic antennas etc. that receive this have sharp directivity, so when installing a satellite receiving antenna, It is necessary to make the direction of the satellite receiving antenna coincide with the direction of the satellite.

In order to match the directivity of the satellite receiving antenna with the satellite, elevation angles (elevation angles; angles in the height direction with respect to the horizontal plane with respect to the horizontal plane) when the satellite is viewed from the antenna installation position shown in FIG. Both the azimuth shown in FIG. 12 (the direction of north, south, east and west with respect to true north in the horizontal plane) must match the direction of the satellite, and both the elevation and the azimuth match the direction of the satellite. Then, it becomes possible to receive microwave radio waves from the satellite in a good condition.

Since the positional relationship between a broadcasting satellite or a communication satellite and the earth is constant, once the antenna is aligned once, if the antenna is firmly fixed, no further adjustment is required.

[0005] Since broadcast satellites and communication satellites cannot be seen with the naked eye, information on the positional relationship between the earth and those satellites is required. Of the elevation and azimuth adjustments to match the pointing direction of the satellite receiving antenna to the satellite,
Adjustment of the elevation angle is relatively easy. In other words, since the elevation angle adjustment has a reference plane called the ground (horizontal plane), it is possible to determine in which region the elevation angle should be set and how many times based on the reference plane. For example, in the case of the broadcasting satellite BS-3, the setting values of the elevation angle are calculated in advance at 38 degrees in Tokyo and 41 degrees in Osaka, and it is easy to set the required elevation angle with respect to the ground. In general, an elevation scale (for example, a range of 29 degrees to 54 degrees) is also engraved on the elevation angle adjustment unit of the satellite receiving antenna.

On the other hand, the adjustment of the azimuth is somewhat difficult. As shown in FIG. 12, the azimuth angle is a clockwise angle based on true north, but since true north is not known in the first place, it is difficult to set an accurate azimuth angle when installing the antenna. If there is a satellite receiving antenna installed nearby, an approximate azimuth angle can be predicted, but if there is nothing, it is necessary to know the reference azimuth.

In order to adjust the direction of the satellite receiving antenna with respect to the satellite, which has been conventionally generally adopted, first, the elevation angle is adjusted to the set value of the area, and the azimuth angle is adjusted by one of the following two methods. Was.

(1) An azimuth magnet is used, and an azimuth angle is set based on the magnetic north of the azimuth magnet.

(2) For example, in the case of the broadcasting satellite BS-3 in a geostationary orbit on the equator at 110 degrees east longitude, the azimuth of the antenna is adjusted to the direction of the sun at 2:00 pm (as can be seen from FIG. The azimuth of the broadcasting satellite is slightly west from the south-center position of the sun, and the azimuth of the sun at 2:00 pm is near the azimuth of the broadcasting satellite BS-3.)

In order to easily implement the method (1) using a compass, Japanese Utility Model Laid-Open No. 7-11010 proposes a configuration in which a compass is incorporated in an antenna adjustment mechanism.

[0011]

However, the method using the compass (1) involves a large error when a magnetic metal object is present at a place where an antenna is installed, for example, on a veranda or a roof of a house. There is a problem. The method of (2) adjusting the azimuth of the antenna to the direction of the sun at 2:00 pm has a problem that the direction of the antenna can be adjusted only at 2:00 pm.

SUMMARY OF THE INVENTION In view of the above, the present invention provides a satellite receiving antenna which can easily determine the azimuth from the time and the sun position without using a directional magnet and can easily adjust the azimuth of the satellite receiving antenna. An object of the present invention is to provide an azimuth adjustment method and apparatus.

Other objects and novel features of the present invention will be clarified in embodiments described later.

[0014]

In order to achieve the above object, a method for adjusting the azimuth of a satellite receiving antenna according to the present invention comprises: a base fixed to the back side of the satellite receiving antenna;
A bracket having a cylindrical mounting portion attached to the pedestal portion so that the elevation angle of the satellite receiving antenna can be adjusted, a column that enters inside the cylindrical mounting portion, and a top portion of the column. A first reference mark for adjusting to the direction of the sun or a direction 180 degrees opposite to the direction of the sun, and a scale plate provided with a scale indicating a relationship between the first reference mark and the satellite direction at the time of the alignment. And a second reference mark corresponding to the direction of the antenna is fixedly provided on the bracket, and the first reference mark of the scale plate is provided at the top of the support column with the direction of the sun or the direction of the sun. After adjusting the orientation of the scale plate so as to match the direction on the opposite side by 180 degrees, the position of the scale plate is immobile, and the scale corresponding to the satellite direction at the time of the orientation adjustment is set. In the scale, it is characterized by orienting angle of the satellite receiving antenna in the direction of the satellite by combining the second reference mark.

An azimuth adjusting device for a satellite receiving antenna according to the present invention comprises a pedestal portion fixed to the back side of the satellite receiving antenna, and an elevation angle of the satellite receiving antenna with respect to the pedestal portion being adjustable. A bracket having a cylindrical mounting portion, and a strut that enters inside the cylindrical mounting portion,
A first fiducial mark provided at the top of the support to adjust to the sun's azimuth or an azimuth opposite to the sun's azimuth by 180 degrees, and the first fiducial mark and the satellite direction at the time of azimuth alignment A scale plate provided with a scale indicating the relationship, and a second reference mark fixedly provided on the bracket side and corresponding to the direction of the antenna, wherein the first reference mark of the scale plate is When the azimuth of the scale plate is aligned with the azimuth or the azimuth opposite to the direction of the sun by 180 degrees, the second graduation of the graduation plate corresponding to the satellite direction at the time of the azimuth alignment is displayed on the scale. The azimuth of the satellite receiving antenna is adjusted to the direction of the satellite by aligning the reference mark.

In the azimuth adjusting device for a satellite receiving antenna, an auxiliary mark which is displaced from the second reference mark by a correction amount according to one or both of a season and a region is fixedly provided on the bracket. You may.

Further, the scale plate may have a fitting flange portion which is slightly larger than the outer diameter of the top portion of the support column, so that the scale plate can be fitted to the top portion.

Further, the scale plate has a double structure of a lower plate and an upper plate rotatable with respect to the lower plate, and the upper plate has a first reference mark and an orientation aligned with the first reference mark. A scale indicating the relationship with the satellite direction at the time may be provided, and the lower plate may be provided with fixing means for fixing to the top of the column.

[0019] A configuration may be adopted in which a projection for shading by sunlight is provided in the center of the scale plate in the normal direction.

[0020]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a method and an apparatus for adjusting the azimuth of a satellite receiving antenna according to the present invention.

The first embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view showing the entire configuration of the first embodiment, FIG. 2 is a plan view, FIG. 3 is an exploded perspective view of a main part, FIG. 4 is a mechanism part for adjusting an elevation angle, and FIG. It is an enlarged view which shows a mechanism part, respectively.

In these figures, reference numeral 1 denotes a satellite receiving antenna for receiving microwave radio waves from a broadcasting satellite or a communication satellite. For example, a parabolic reflecting mirror 2 and a primary supporting member 3 supported by a stay 3 near its focal point are shown. Radiator 4. In this satellite receiving antenna 1, an incoming radio wave from a satellite is reflected by a reflector 2 and focused on a primary radiator 4, and the radio wave received by the primary radiator 4 is converted into a high-frequency signal and converted by a converter ( (Not shown). A reflector pedestal portion 5 is fixed to the back side of the satellite receiving antenna 1, that is, to the back surface of the parabolic reflector 2. The reflector pedestal portion 5 has a pair of side plate portions 5A fixed to the back surface of the reflector on both sides. I have.

The elevation angle adjustment bracket 10 includes the cylindrical mounting portion 1.
1 has a support plate portion 12 integrally formed on both sides thereof, and the pair of support plate portions 12 have a size and a shape capable of sandwiching the pair of side plate portions 5A from outside. The side plate 5A of the reflector pedestal 5 and the support plate 12 of the bracket 10 are connected to a center bolt 20 serving as a rotation center axis when adjusting the elevation angle.
(It can be fixed by tightening after adjusting the elevation angle). Further, an arc-shaped long hole 13 is formed at a position of the support plate portion 12 corresponding to the circumference concentric with the rotation center axis, and is fixed to the female screw on the side plate portion 5A side through the arc-shaped long hole 13. The bolt 21 is screwed. These constitute a mechanism for adjusting the elevation angle.

A bracket fixing bolt 22 is screwed around the outer periphery of the cylindrical mounting portion 11. That is, as shown in FIG. 2, the bolt 22 is screwed into the through female screw hole 16 extending from the outer peripheral surface to the inner peripheral surface of the cylindrical mounting portion 11, and the bolt 22 is inserted into the inner peripheral side of the cylindrical mounting portion 11.
The bracket 10 can be attached and fixed to the support column 30 by abutting on the support post 30.

The column 30 has a columnar or cylindrical shape. For example, as shown in FIG.
The upper end portion 30a fitted into the elevation angle adjustment bracket 10 has a slightly smaller diameter as shown in FIG. It is desirable that the structure 10 does not fall down.

The upper end 3 of the column 30 erected vertically.
When the elevation angle adjustment bracket 10 is fitted to the bracket 0a, the support plate portion 12 constituting the elevation angle adjustment mechanism portion is configured such that the side plate portion 5A fixed to the satellite receiving antenna 1 side is vertically fixed with the center bolt 20 as a rotation center axis. It is rotatably supported in the (vertical) plane, and the elevation angle of the satellite receiving antenna 1 with respect to the direction of the central axis of the parabolic reflector 2, that is, the horizontal direction (ground plane) of the antenna directing direction can be adjusted. In order to adjust the elevation angle, an elevation scale A is engraved on the outer surface of the side plate portion 5A as shown in FIG. 4, or an elevation scale plate on which the elevation scale A is formed is adhered and fixed to the outer surface of the side plate portion 5A. I have. As long as the bracket fixing bolts 22 are not tightened, the elevation angle adjustment bracket 10 can be rotated and adjusted 360 degrees in a horizontal plane with the support 30 as the rotation center axis.

An azimuth adjustment scale plate 40 is used to adjust the azimuth based on true north of the directivity of the satellite receiving antenna 1. This azimuth adjustment scale plate 40
First, as shown in FIG.
Disk part 4 prepared as a separate part from
A cylindrical fitting flange 42 slightly larger than the outer diameter of the top of the column 30 is integrally provided on the outer edge of the column 1 so that it can be fitted to the column top and can be rotated 360 degrees in a horizontal plane. .

As shown in FIG. 5 showing a mechanism for adjusting the azimuth angle, a first reference mark B to be aligned with the sun direction is fitted on the azimuth adjustment scale plate 40 in a state of being fitted to the top of the column 30. A time scale based on the first reference mark B (the numerical values 10, 12, 14, and 16 in the scale plate 40 indicate the time, respectively) is provided by printing, engraving, or the like. In addition, the upper surface of the cylindrical mounting portion 11 of the bracket 10, which has a positional relationship surrounding the azimuth angle adjusting scale plate 40 in an annular shape, corresponds to the orientation of the satellite receiving antenna 1 (a fixed positional relationship with the antenna orientation). A) A second reference mark C is fixedly provided by engraving, painting, or the like. However,
Here, for easy understanding, the second reference mark C is formed at a position corresponding to the antenna azimuth when viewed from the center of the azimuth adjustment scale plate 40.

The azimuth angle adjustment scale plate 40 is an application of the fact that the azimuth of the sun at 2:00 pm substantially coincides with the direction of the broadcast satellite in many areas of the country when receiving broadcast satellites. If the time of azimuth alignment of the satellite receiving antenna 1 is 2:00 pm, that is, 14:00, the azimuth of the first reference mark B on the scale plate side becomes the direction of the broadcasting satellite. The second reference mark C may be made to coincide with the first reference mark B. When the orientation of the satellite receiving antenna 1 is adjusted at a time other than 14:00, for example, when the orientation is adjusted at 12:00, the orientation of the first reference mark B directed to the orientation of the sun at that time is as follows. Since the angle is shifted by a predetermined angle from the direction of the broadcast satellite, the shift amount is corrected and the position on the azimuth adjustment scale plate 40 indicating the direction of the broadcast satellite at the time (12:00) is set to "1" as shown in FIG.
2 o'clock, and the second reference mark C
, The azimuth of the antenna 1 can be adjusted to the direction of the broadcast satellite. In other words, the azimuth adjustment scale plate 40 has a relationship between the azimuth of the sun and the azimuth of the broadcast satellite at the time when the azimuth of the satellite receiving antenna 1 is adjusted (that is, the time when the azimuth of the scale plate 40 is adjusted). When the first reference mark B is matched with the direction of the sun, the numerical value of the time is displayed at a position indicating the direction of the broadcast satellite at the time of the direction alignment. The displayed scale is formed.

As shown in FIG. 3, a double-sided adhesive tape 43 is affixed to the back surface of the azimuth adjustment scale plate 40, and after the first reference mark B is aligned with the sun, the azimuth is adjusted. The scale plate 40 for angle adjustment is connected to the upper end surface 30b of the top of the support
It can be fixed to.

Next, a column 30 which is vertically erected and fixed.
The operation of adjusting the elevation and azimuth of the satellite receiving antenna 1 mounted using the elevation adjustment bracket 10 will be described.

First, the elevation angle adjustment is performed. If the column 30 is fixed to a veranda or the like in the vertical direction with reference to the ground substantially forming the horizontal plane, the elevation angle adjustment bracket 10 is used.
The cylindrical mounting portion 11 is fitted into the upper end portion 30a of the column 30, and the vertical direction of the satellite receiving antenna 1 is adjusted with the center bolt 20 as a rotation center axis, and provided on the side surface of the side plate portion 5A as shown in FIG. Elevation angle setting values determined by the antenna installation location using the elevation angle scale A (for example, there is a list of 38 degrees in Tokyo and 41 degrees in Osaka for broadcast satellites, and refer to this table). . Thereafter, the center bolt 20 and the elevation fixing bolt 21 are tightened to securely fix the side plate 5A to the support plate 12 of the bracket 10 so as not to rotate. It is also possible to adjust the elevation angle using the elevation angle scale A before attaching the elevation angle adjustment bracket 10 to the column 30. Such an elevation angle adjustment operation is the same as the conventional operation.

Next, an azimuth adjustment operation is started. Elevation angle adjustment bracket 1 connected and fixed to satellite receiving antenna 1
The bracket receiving bolt 22 is loosened while the 0 is fitted in the upper end 30a of the support 30 so that the direction of the satellite receiving antenna 1 can be adjusted by 360 degrees in the horizontal plane with the support 30 as the center of rotation. deep. Then, the azimuth adjustment scale plate 40 is rotatably fitted to the top of the column 30 by using the flange 42 thereof. However, in a state where the adhesive surface of the double-sided adhesive tape 43 is exposed, it is preferable that the double-sided adhesive tape 43 be slightly lifted and supported by hand so as not to adhere to the upper end surface 30b of the top of the support. then,
The direction of the azimuth adjustment scale plate 40 is changed in a state where the flange portion 42 is fitted to the support column 30 so that the first reference mark B matches the direction of the sun.
The adhesive surface of No. 3 is pressed against the upper end surface 30b to fix the azimuth adjustment scale plate 40 to the upper end surface 30b at the top of the column. At this time, the direction of the broadcasting satellite at the time (azimuth adjustment time) is indicated by a scale written on the azimuth angle adjustment scale plate 40, so that the elevation angle adjustment bracket 10 and the antenna 1 are rotated. , The bracket 10
The second reference mark C on the side (corresponding to the antenna directivity direction) is aligned. For example, when the azimuth alignment time is 12:00, the first reference mark B is made to coincide with the azimuth of the sun as shown in FIG. A second reference mark C indicating the antenna directing direction on a scale n indicated at 12:00 which is located at a position shifted from the first reference mark B by the specified angle (a position indicating the orientation of the broadcasting satellite at 12:00). Should be combined.

In practice, the relationship between the direction of the sun and the direction of the satellite is not exactly constant, and there are regional differences and seasonal differences. Therefore, a satellite tuner or a meter attached to a TV receiver is used. Then, the azimuth at which the satellite radio wave is maximized is found, and if necessary, the elevation angle is finely adjusted using a satellite receiving tuner or a TV receiver.

According to the first embodiment, the following effects can be obtained.

(1) The azimuth of the satellite receiving antenna 1 can be set correctly without using a compass, and there is no problem even if the veranda or roof on which the antenna is installed is made of a magnetic metal such as iron. There is.

(2) The sun is used as a reference for the azimuth, but the time of azimuth alignment is arbitrary and is not limited to 2:00 pm. For this reason, the efficiency of the antenna mounting operation can be improved.

(3) By using the azimuth angle adjusting scale plate 40 provided with a scale indicating the relationship between the azimuth of the sun and the azimuth of the broadcasting satellite at the time when the azimuth of the satellite receiving antenna 1 is aligned, The azimuth of the satellite receiving antenna 1 can be adjusted to the direction of the broadcasting satellite without special skill.

In the above-described first embodiment, the first reference mark B and the scale on the azimuth angle adjustment scale plate 40 are, for example, a representative area (for example, Tokyo, where the satellite receiving antenna 1 is installed). , Osaka, etc.) on the basis of the equinox and autumn equinox days, but taking into account that the relationship between the position of the sun and the time varies depending on the season and region, the first reference mark B is It is also possible to adopt a configuration in which, when the orientation is matched, a time scale indicating the direction of the broadcast satellite at the time of the orientation adjustment has a predetermined width. FIG. 6 shows a configuration of a main part of this case as a second embodiment of the present invention.

FIG. 6 shows the configuration of a main part of the second embodiment. The azimuth adjustment scale plate 40A has the sun at the time when the orientation of the satellite receiving antenna 1 shown in FIG. Although the scale indicating the relationship between the azimuth of the broadcast satellite and the azimuth of the broadcast satellite is attached, when the first reference mark B is matched with the azimuth of the sun, the direction of the broadcast satellite at the time of the azimuth alignment is set to a predetermined value. The scale is displayed with an angle width. For example,
When the time of azimuth alignment is 14:00, the first reference mark B
, The angle range from the scale 14a to the scale 14b is provided, and this angle range is a range in which the direction of the broadcasting satellite can be taken when the first reference mark B is set to the sun direction (seasonal and regional variations Range considered). At other times, the scale is similarly provided with an angular width.

In the actual azimuth alignment, after the first reference mark B is aligned with the sun azimuth, the azimuth alignment time 14 is set.
At the time, the second reference mark C on the elevation angle adjustment bracket 10 side is set to a position closer to the scale 14a in a season close to the summer solstice, and the second reference mark C on the elevation angle adjustment bracket 10 side is closer to the scale 14b in a season close to the winter solstice. The second reference mark C may be aligned. Similarly, at 13:00 azimuth adjustment time, the second reference mark C on the elevation angle adjustment bracket 10 side is adjusted to the position near the scale 13a in the season near the summer solstice, and the position near the scale 13b in the season near the winter solstice. The second reference mark C on the elevation angle adjustment bracket 10 side may be aligned, and the azimuth alignment can be similarly performed at other times. Further, the fluctuation width by area is smaller than the fluctuation width by season, but since the azimuth angle in Okinawa and the like is not negligible compared to Tokyo and the like, the position on the scale closer to the left (for example, scale 13)
a, 14a) at the second reference mark C
Should be matched.

The other structure, operation and effect of the second embodiment are the same as those of the first embodiment.

FIG. 7 shows a main part of a third embodiment of the present invention. The azimuth adjustment scale plate 40 is the same as that of the first embodiment, and the scale has an angular width. Instead, the auxiliary marks Cs and Cw whose positions are shifted by the seasonal correction amount with respect to the second reference mark C on the elevation angle adjustment bracket 10 side are provided by engraving or the like on the cylindrical mounting portion 11 of the elevation angle adjustment bracket 10. ing. Here, the auxiliary mark Cs is used instead of the second reference mark C near the summer solstice, and the auxiliary mark Cw is used instead of the second reference mark C near the winter solstice.

For example, in the azimuth adjustment near the summer solstice, the first reference mark B of the azimuth adjustment scale plate 40 rotatably fitted to the top of the column is made coincident with the azimuth of the sun.
The azimuth adjustment scale plate 40 is fixed to the upper end face of the column top with double-sided adhesive tape or the like at the place where they coincide, and the direction of the broadcasting satellite at the time (azimuth alignment time) at this time (actually, equinox and autumn equinox) (Direction of time) is indicated by the scale written on the azimuth angle adjustment scale plate 40, and the elevation angle adjustment bracket 10 is rotated to align the auxiliary mark Cs on the bracket 10 side with the scale. Auxiliary mark C
Since s is formed at a position shifted from the second reference mark C in anticipation of a positional difference between the sun direction and the broadcast satellite direction between the spring equinox, the autumn equinox and the summer solstice, it is set in this manner. Thus, the azimuth of the satellite receiving antenna can be set more correctly. Also in the azimuth adjustment near the winter solstice, the azimuth setting of the satellite receiving antenna can be more correctly set by using the auxiliary mark Cw.

Other structures, operations and effects of the third embodiment are the same as those of the first embodiment.

FIG. 8 shows a main part of the fourth embodiment of the present invention. The azimuth adjustment scale plate 40 is the same as that of the first embodiment, and the scale has an angular width. Instead, the auxiliary mark Co, which is displaced from the second reference mark C on the elevation angle adjustment bracket 10 by the correction amount depending on the area, is provided on the cylindrical mounting portion 11 of the elevation angle adjustment bracket 10 by engraving or the like. . Here, the auxiliary mark Co is used in place of the second reference mark C in Kyushu, Okinawa, and its vicinity where the deviation of the azimuth cannot be ignored compared to Tokyo.

For example, in azimuth alignment in Kyushu, Okinawa, and the vicinity thereof, the first reference mark B of the azimuth adjustment scale plate 40 rotatably fitted to the top of the column is made to coincide with the azimuth of the sun. At this point, the azimuth adjustment scale plate 40 is fixed to the upper end face of the top of the support with double-sided adhesive tape or the like, and the direction of the broadcast satellite at the time (azimuth alignment time) at this time (actually, Tokyo, Osaka, etc.) Is assumed on the scale indicating the time written on the azimuth adjustment scale plate 40, the elevation angle adjustment bracket 10 is rotated, and the bracket 10 is attached to the scale.
Align the auxiliary mark Co on the side. The auxiliary mark Co is formed at a position shifted from the second reference mark C in anticipation of a positional relationship between the sun azimuth and the broadcast satellite azimuth in areas such as Tokyo and Osaka and in Kyushu and Okinawa and the vicinity thereof. Therefore, by setting in this way, it is possible to set the azimuth of the satellite receiving antenna more correctly in Kyushu, Okinawa, and the vicinity thereof.

Other configurations, operations and effects of the fourth embodiment are the same as those of the first embodiment.

In the third embodiment, the auxiliary marks Cs and Cw for compensating for seasonal variations are provided on the bracket 10, and in the fourth embodiment, the auxiliary marks Co for compensating for regional variations are provided on the bracket 10. The position and number of the auxiliary marks may be set in consideration of both the fluctuation.

FIG. 9 shows a first modification of the azimuth adjustment scale plate usable in the first to fourth embodiments of the present invention.
The azimuth angle adjusting scale plate 40B has a double structure in which a circular lower plate 51 for fixing and a circular upper plate 53 with scale are overlapped and their centers are stopped by eyelets 54. The fixed circular lower plate 51 integrally has a cylindrical fitting flange portion 52 slightly larger than the outer diameter of the top portion of the column 30 shown in FIG. 1 and the like, and is freely fittable to the top portion. In addition, on the back side of the lower plate 51, a double-sided adhesive tape 55 for fixing to the upper end surface 30b of the column 30 is provided. The circular upper plate 53 is rotatably attached to the lower plate 51 by eyelets 54. The upper plate 53 has the same configuration as the azimuth adjusting scale plates 40 and 40A shown in FIG. 5 or FIG. First fiducial mark B
When the first reference mark B is aligned with the direction of the sun, a scale indicating the numerical value of the time is formed at a position indicating the direction of the broadcast satellite at the time of the direction alignment.

When the azimuth adjustment scale plate 40B shown in FIG. 9 is used, the azimuth adjustment scale 40B of the satellite receiving antenna 1 is fixed to the upper end surface 30b of the column 30 shown in FIG. The lower plate 51 can be fixed, and the operation of turning the first reference mark B and the scaled upper plate 53 to orient the first reference mark B in the direction of the sun can be performed smoothly. .

FIG. 10A shows a second modification of the azimuth adjustment scale plate which can be used in the first to fourth embodiments of the present invention. 1 and a cylindrical fitting flange 42 which is slightly larger than the outer diameter of the top of the column 30 shown in FIG. The central portion of the plate portion 41 has a bar-shaped protrusion 60 that stands vertically and is fixed vertically (in the normal direction) so as to create a shade due to sunlight. Before the azimuth angle adjustment scale plate 40C is also bonded to the column with a double-sided adhesive tape or the like, the scale plate 40C is fitted to the column top by the flange portion 42 and can be rotated 360 degrees in a horizontal plane.
The azimuth angle adjustment scale plate 40C has a first reference mark B similar to the azimuth angle adjustment scale plates 40 and 40A shown in FIG. 5 or FIG. When there is a match, a scale indicating the numerical value of the time is formed at a position indicating the direction of the broadcast satellite at the time of the azimuth alignment.

The azimuth adjustment scale plate 40C shown in FIG.
Is used, since the shade m of the bar-shaped protrusion 60 due to sunlight indicates an azimuth opposite to the direction of the sun by 180 degrees, the first reference mark B is 180 degrees opposite to the shade m of the bar-shaped protrusion 60. The orientation may be adjusted toward the side orientation. The first
After the reference mark B is oriented in the direction of the sun, the scale plate 40C for adjusting the azimuth angle may be fixed to the upper end surface of the support using a double-sided adhesive tape or the like.

The azimuth adjustment scale plate 40C shown in FIG.
According to this, there is an advantage that it is not necessary to look directly at the sun in order to match the first reference mark B with the direction of the sun.

The azimuth adjustment scale plate 4 shown in FIG.
In the case of 0C, the first reference mark B and the scale are set so as to be effective when the first reference mark B matches the direction of the sun as in FIG. 5 or FIG. It is necessary to align the reference mark B in the direction 180 degrees opposite to the shadow m of the bar-shaped projection 60, but by changing the position of the first reference mark in advance by 180 degrees,
The azimuth alignment can be performed by making the first reference mark coincide with the shadow m of the bar-shaped protrusion 60. This case is shown in FIG. 10B as a third modification of the azimuth angle adjusting scale plate usable in the first to fourth embodiments of the present invention.

In the third modification shown in FIG. 10B, the disk portion 41 of the azimuth angle adjusting scale plate 40D has a shadow m of the bar-shaped projection 60 due to sunlight (that is, 180 degrees of the azimuth of the sun).
A first reference mark B ′ for matching the first reference mark B ′ and a first reference mark B ′ for matching the shadow m of the rod-shaped protrusion 60 (a direction opposite to the direction of the sun by 180 degrees). At this time, a scale indicating the numerical value of the time is formed at a position indicating the direction of the broadcast satellite at the time of the azimuth alignment. The other configuration of the azimuth angle adjustment scale plate 40D is the same as that of the azimuth angle adjustment scale plate 40C in FIG. 10A, and the same or corresponding parts are denoted by the same reference numerals.

The azimuth adjustment scale plate 40D shown in FIG.
Is used, the direction of the first reference mark B 'may be matched with the direction of the shadow m of the bar-shaped protrusion 60 due to sunlight, and the orientation may be adjusted. Is also simplified.

In FIGS. 10 (A) and 10 (B), the projections for shading due to sunlight on the disk portions 41 of the azimuth angle adjustment scale plates 40C and 40D are the rod-shaped projections 60 described above. The present invention is not limited to this, and it is sufficient if there is a portion that rises vertically (in the direction of the normal line) straight from the disk portion 41, so that a triangular plate shape or the like is also possible.

In each embodiment, the case where the direction of the satellite receiving antenna is set to the direction of the broadcasting satellite BS-3 in the geostationary satellite orbit on the equator at 110 degrees east longitude is described as an example. Also in the case of a communication satellite in orbit, when the first fiducial mark B is aligned with the direction of the sun, a scale indicating the numerical value of the time is displayed at a position indicating the direction of the communication satellite at the time of the azimuth alignment. It is apparent that the azimuth angle can be adjusted similarly by preparing the formed azimuth angle adjustment scale plate or the like.

As the satellite receiving antenna, a general combination of a parabolic reflector and a primary radiator has been exemplified. However, a microwave directional antenna such as a planar antenna in which a number of element antennas are arranged on a plane. The present invention is similarly applicable to

Although the embodiments of the present invention have been described above, it is obvious to those skilled in the art that the present invention is not limited to the embodiments and various modifications and changes can be made within the scope of the claims. There will be.

[0062]

As described above, according to the present invention,
Since the azimuth magnet is not used, the veranda or the roof on which the antenna is installed can be made of a magnetic metal such as iron, and the azimuth of the satellite receiving antenna can be set correctly. In addition, the sun is used as a reference for the direction, but the time of the direction adjustment is arbitrary and is not limited to 2:00 pm.
Furthermore, by using an azimuth adjustment scale plate provided with a scale indicating the relationship between the azimuth of the sun and the azimuth of the satellite at the time when the azimuth of the satellite receiving antenna is aligned, no special skill is required. The direction of the satellite receiving antenna can be adjusted to the direction of the satellite.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment according to the present invention and showing an overall configuration.

FIG. 2 is a plan view of the first embodiment.

FIG. 3 is an exploded perspective view of a main part of the first embodiment.

FIG. 4 is a side view showing a mechanism for adjusting the elevation angle in the first embodiment.

FIG. 5 is a plan view showing a mechanism for adjusting an azimuth angle in the first embodiment.

FIG. 6 is a plan view showing a main part configuration of a second embodiment according to the present invention.

FIG. 7 is a plan view showing a main part configuration of a third embodiment according to the present invention.

FIG. 8 is a plan view illustrating a main part configuration of a fourth embodiment according to the present invention.

FIG. 9 is a perspective view showing a first modification of the azimuth angle adjusting scale plate usable in the first to fourth embodiments.

FIG. 10 is a perspective view showing second and third modified examples of the azimuth angle adjusting scale plate usable in the first to fourth embodiments.

FIG. 11 is an explanatory diagram showing the elevation angle of the satellite at the installation position of the satellite receiving antenna.

FIG. 12 is an explanatory diagram showing an azimuth angle of a satellite at an installation position of a satellite receiving antenna.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Satellite receiving antenna 2 Parabolic reflector 3 Stay 4 Primary radiator 5 Reflector pedestal part 5A side plate part 10 Elevation angle adjustment bracket 11 Cylindrical mounting part 12 Support plate part 13 Arc-shaped long hole 20 Center bolt 21 Elevation angle fixing bolt 22 Bracket fixing Bolt 30 Prop 31 Handrail 32,33 Mounting bracket 40,40A, 40B, 40C, 40D Azimuth adjustment scale plate 41 Disk part 42,52 Flange part 43,55 Double-sided adhesive tape 51 Circular lower plate 53 Circular upper plate 54 Eyelet 60 Bar-shaped protrusion A Elevation scale B, B 'First reference mark C Second reference mark Co, Cs, Cw Auxiliary mark

Claims (6)

[Claims] A bracket fixed to the back side of the satellite receiving antenna, a bracket having a cylindrical mounting portion attached to the pedestal portion so as to adjust an elevation angle of the satellite receiving antenna, and the cylindrical member; A support which enters the inside of the shape-mounting portion, a first reference mark provided on the top of the support, and a first reference mark for adjusting to the direction of the sun or a direction 180 degrees opposite to the direction of the sun, and the first reference mark And a scale plate provided with a scale indicating the relationship with the satellite direction at the time of azimuth alignment, and a second reference mark corresponding to the azimuth of the antenna is fixedly provided on the bracket, and at the top of the support, After the first reference mark of the scale plate is aligned with the direction of the sun or the direction opposite to the direction of the sun by 180 degrees to perform the orientation of the scale plate, the position of the scale plate is Moving the azimuth of the satellite receiving antenna to the direction of the satellite by aligning the second reference mark with the scale of the scale plate corresponding to the direction of the satellite at the time of the azimuth alignment. A method for adjusting the azimuth of a satellite receiving antenna. 2. A bracket fixed to the back side of the satellite receiving antenna, a bracket having a cylindrical mounting portion attached to the pedestal portion so as to adjust an elevation angle of the satellite receiving antenna, and the cylindrical member, A support which enters the inside of the shape-mounting portion, a first reference mark provided on the top of the support, and a first reference mark for adjusting to the direction of the sun or a direction 180 degrees opposite to the direction of the sun, and the first reference mark A scale plate provided with a scale indicating a relationship between the direction of the satellite and the direction of the satellite at the time of orientation adjustment, and a second reference mark fixedly provided on the bracket side and corresponding to the direction of the antenna, wherein the scale is provided. When the first reference mark of the plate is aligned with the direction of the sun or the direction 180 degrees opposite to the direction of the sun and the scale plate is aligned, it corresponds to the satellite direction at the time of the alignment. The scale on the scale plate
The azimuth adjusting device for a satellite receiving antenna is characterized in that the azimuth of the satellite receiving antenna is adjusted to the direction of the satellite by aligning the reference mark. 3. The satellite receiving system according to claim 2, wherein an auxiliary mark which is displaced from the second reference mark by a correction amount according to one or both of a season and a region is fixedly provided on the bracket. Antenna azimuth adjustment device. 4. The scale plate integrally has a fitting flange portion slightly larger than an outer diameter of a top portion of the support,
The azimuth adjusting device for a satellite receiving antenna according to claim 2 or 3, wherein the azimuth adjusting device can be fitted to the top portion. 5. The scale plate has a double structure of a lower plate and an upper plate rotatable with respect to the lower plate.
3. A scale indicating the relationship between the first reference mark and the first reference mark and the satellite direction at the time of azimuth alignment is provided, and fixing means for fixing the lower plate to the top of the support is provided. 5. An azimuth adjusting device for a satellite receiving antenna according to claim 3, 3 or 4. 6. A projection which creates a shadow due to sunlight at a central portion of the scale plate, and the projection is erected in a normal direction.
Or the azimuth adjusting device for a satellite receiving antenna according to 5.