Antenna pedestal frame for satellite communication, communication antenna and terminal equipment

Abstract

The invention provides an antenna pedestal frame for satellite communication, a communication antenna and terminal equipment. The antenna pedestal frame for satellite communication comprises a base; the turntable is rotatably arranged on the base; the first driving part can drive the turntable to rotate relative to the base; the stand column is arranged on the turntable; the rotating arm is rotatably arranged on the stand column; the second driving part is arranged on the stand column, and the second driving part can drive the rotating arm to rotate relative to the stand column; the connecting plate is used for installing an antenna, and the connecting plate is rotatably arranged on the rotating arm; and the third driving part is arranged on the rotating arm, and the third driving part can drive the connecting plate to rotate relative to the rotating arm. Therefore, the antenna mount for satellite communication has the advantages of small size, light weight and convenience in satellite alignment of the antenna and the low-orbit satellite.

Description

Technical Field

[0001] The present invention relates to the technical field of low-earth orbit satellite antennas, and particularly to an antenna pedestal, a communication antenna and a terminal device for satellite communication. Background Art

[0002] In related technologies, the relatively mature antenna pedestals on the market are mostly used for geostationary satellite communication. Generally, they are driven by two axes of azimuth and elevation, and the driving form is mostly belt drive, with slow speed, loose structure, large size and weight. When used for low-earth orbit satellite communication, the speed, accuracy and stability are relatively low, and it is easy to lose the satellite. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the related technologies to some extent. For this purpose, an embodiment of the present invention provides an antenna pedestal, a communication antenna and a terminal device for satellite communication.

[0004] The antenna pedestal for satellite communication according to the embodiment of the present invention includes:

[0005] A base, the thickness direction of the base being the first direction;

[0006] A turntable, the thickness direction of the turntable being the first direction, the turntable being rotatably arranged on the base, and the extending direction of the rotation axis of the turntable being the first direction;

[0007] A first driving part, the first driving part being capable of driving the turntable to rotate relative to the base;

[0008] A column, the column being arranged on the turntable, the column extending along a second direction, the second direction forming an angle with the first direction, and the angle between the second direction and the first direction being less than 90°;

[0009] A rotating arm, the rotating arm being rotatably arranged on the column, and the extending direction of the rotation axis of the rotating arm being the third direction;

[0010] A second driving part, the second driving part being arranged on the column, the second driving part being capable of driving the rotating arm to rotate relative to the column;

[0011] A connecting plate for installing an antenna, the connecting plate being rotatably arranged on the rotating arm, the extending direction of the rotation axis of the connecting plate being the fourth direction, and any two of the fourth direction, the third direction and the first direction forming an angle;

[0012] A third driving part, the third driving part being arranged on the rotating arm, the third driving part being capable of driving the connecting plate to rotate relative to the rotating arm.

[0013] Therefore, the pedestal of the satellite communication according to the embodiment of the present invention has the advantages of small size, light weight and facilitating the alignment of the antenna with the low-earth orbit satellite.

[0014] In some embodiments, the base, the turntable and the column are sequentially arranged in the first direction;

[0015] The rotating arm is a U-shaped structure. The rotating arm includes a first connecting rod, a second connecting rod and a third connecting rod. Two ends of the first connecting rod are respectively connected to the second connecting rod and the third connecting rod. The extending direction of the first connecting rod is perpendicular to the third direction. The first connecting rod is connected to a first rotating shaft, and the first connecting rod is rotatably arranged on the column through the first rotating shaft;

[0016] The connecting plate is connected to a second rotating shaft. The second rotating shaft is rotatably arranged on the second connecting rod. A third rotating shaft rotatably connected thereto is arranged on the third connecting rod. The third rotating shaft is coaxially arranged with the second rotating shaft. An auxiliary plate is arranged on the third rotating shaft. The auxiliary plate cooperates with the connecting plate to facilitate the installation of the antenna.

[0017] In some embodiments, the third driving part includes

[0018] A pitching motor fixed on the second connecting rod;

[0019] A first pitching gear connected to the output shaft of the pitching motor;

[0020] A second pitching gear connected to the second rotating shaft. The second pitching gear meshes with the first pitching gear. The radius of the second pitching gear is greater than the radius of the first pitching gear.

[0021] In some embodiments, the second driving part includes

[0022] A rolling motor arranged on the column;

[0023] A first rolling gear connected to the output shaft of the rolling motor;

[0024] A second rolling gear connected to the first rotating shaft. The second rolling gear meshes with the first rolling gear. The radius of the second rolling gear is greater than the radius of the first rolling gear. The second rolling gear can drive the rotating arm to rotate.

[0025] In some embodiments, the second connecting rod and the third connecting rod are oppositely arranged in the fourth direction;

[0026] The second connecting rod and the third connecting rod both extend along the third direction;

[0027] The middle part of the column has a first through hole penetrating it, and the roll motor is arranged in the first through hole;

[0028] The second pitch gear is a sector gear, and the total circumferential angle of the second pitch gear is greater than or equal to 90° and less than or equal to 150°;

[0029] The second roll gear is connected to the first connecting rod by bolts;

[0030] The second roll gear is a sector gear, and the total circumferential angle of the second roll gear is greater than or equal to 45° and less than or equal to 90°.

[0031] In some embodiments, the third direction is perpendicular to the second direction, and the third direction forms an angle with the plane perpendicular to the first direction;

[0032] The angle between the second direction and the first direction is greater than or equal to 30° and less than or equal to 60°;

[0033] On the thickness direction of the turntable, there is a first connection surface facing the column. The column is connected to the side of the first connection surface. The column extends along the center position away from the first connection surface in the first direction. The column has a second connection surface facing at least part of the rotating arm, and the angle between the first connection surface and the second connection surface is greater than 90°.

[0034] In some embodiments, the first driving part includes

[0035] An azimuth motor arranged on the turntable;

[0036] An azimuth first gear connected to the output shaft of the azimuth motor;

[0037] A slewing bearing including a first ring body and a second ring body. The first ring body is fixed on the turntable. The second ring body is sleeved on the outer peripheral side of the first ring body. The second ring body is connected to the base. The second ring body and the first ring body can rotate relative to each other. The extending direction of the rotation axis of the first ring body is the first direction. Teeth are provided on the outer peripheral side of the second ring body, and the second ring body meshes with the azimuth first gear.

[0038] The antenna pedestal of the satellite communication in the embodiment of the present invention further includes

[0039] An inertial navigation system arranged on the base, and the inertial navigation system is used to collect antenna attitude information in real time;

[0040] A positioning module is provided on the base, and the positioning module is used to collect the longitude and latitude information of the site where the antenna is located.

[0041] A control module is provided on the turntable. The control module is electrically connected to the inertial navigation system and the positioning module to receive the antenna attitude information and the longitude and latitude information of the site where the antenna is located. The control module is electrically connected to the drivers of each of the first driving part, the second driving part, and the third driving part. The control module can control the rotation speed and rotation angle of each of the turntable, the rotating arm, and the connecting plate.

[0042] The antenna pedestal for satellite communication according to an embodiment of the present invention further includes a cover body, and the cover body includes

[0043] A first cover body, the first cover body includes a bottom ring plate and a side ring plate. The thickness direction of the bottom ring plate is the first direction, and the side ring plate extends along the first direction. The base is fixed on the bottom ring plate, and at least one mounting opening penetrating through it is provided on the side ring plate.

[0044] A second cover body, the bottom ring plate, the side ring plate, and the second cover body are sequentially connected in the first direction. A protection cavity is formed between the first cover body and the second cover body. The base, the turntable, the column, the rotating arm, and the connecting plate are all located in the protection cavity.

[0045] In some embodiments, the cover body is a cylindrical structure extending along the first direction. The size of the cover body in the first direction is less than or equal to 600 mm, and the outer diameter of the cover body is less than or equal to 600 mm.

[0046] The present invention also provides a communication antenna, including:

[0047] An antenna;

[0048] An antenna pedestal for satellite communication, the antenna pedestal for satellite communication is the above-mentioned antenna pedestal for satellite communication, and the connecting plate of the antenna pedestal for satellite communication is connected to the antenna.

[0049] The present invention also provides a terminal device, including the above-mentioned communication antenna. Description of the Drawings

[0050] Figure 1 It is a schematic diagram of an antenna pedestal for satellite communication with a first cover body according to an embodiment of the present invention.

[0051] Figure 2 It is a schematic diagram of an antenna pedestal for satellite communication according to an embodiment of the present invention.

[0052] Figure 3 The rear view of the antenna pedestal for satellite communication according to an embodiment of the present invention.

[0053] Figure 4 The schematic diagram of the first cover according to an embodiment of the present invention.

[0054] Reference numerals:

[0055] Base 1;

[0056] Turntable 2, first connection surface 21;

[0057] Column 3, second connection surface 31;

[0058] Rotating arm 4, first connecting rod 41, second connecting rod 42, third connecting rod 43;

[0059] Connecting plate 5, auxiliary plate 51;

[0060] Pitch motor 6, first pitch gear 61, second pitch gear 62;

[0061] Roll motor 7, first roll gear 71, second roll gear 72;

[0062] Azimuth motor 8, azimuth first gear 81, slewing bearing 82;

[0063] First cover 9, bottom ring plate 91, side ring plate 92, inertial navigation system 93, positioning module 94, control module 95, slip ring 96. Detailed implementation manners

[0064] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0065] The antenna pedestal for satellite communication according to an embodiment of the present invention will be described below with reference to the drawings. As Figures 1 to 4 shown, the antenna pedestal for satellite communication according to an embodiment of the present invention includes a base 1, a turntable 2, a first driving part, a column 3, a rotating arm 4, a second driving part, a connecting plate 5 and a third driving part.

[0066] The thickness direction of the base 1 is the first direction. The thickness direction of the turntable 2 is the first direction. The turntable 2 is rotatably arranged on the base 1, and the extending direction of the rotation axis of the turntable 2 is the first direction. The first driving part can drive the turntable 2 to rotate relative to the base 1. The first direction can be the up-and-down direction, and the up-and-down direction is as shown by the arrow in the figure. For example, the thickness direction of the base 1 is the up-and-down direction, the thickness direction of the turntable 2 is the up-and-down direction, and the extending direction of the rotation axis of the turntable 2 is the up-and-down direction.

[0067] The column 3 is provided on the turntable 2. The column 3 extends in the second direction. The second direction forms an angle with the first direction, and the angle between the second direction and the first direction is less than 90°. Specifically, the angle between the second direction and the first direction is an acute angle, and the second direction is not perpendicular to the first direction, that is, the column 3 is inclinedly provided on the turntable 2, so that the side surface of the column 3 inclined upward and the side surface in the thickness direction of the turntable 2 define a pitching space reserved for the rotating arm 4, thereby facilitating the rotation of the rotating arm 4. And the structures of the turntable 2, the column 3 and the rotating arm 4 are compact and stable. In order to reduce the structural members for fixing the column 3, and the size of the antenna mount in the first direction can be made smaller, so as to reduce the size and weight of the antenna mount.

[0068] The rotating arm 4 is rotatably provided on the column 3. The extending direction of the rotation axis of the rotating arm 4 is the third direction. The second driving part is provided on the column 3, and the second driving part can drive the rotating arm 4 to rotate relative to the column 3. The connecting plate 5 is used for installing the antenna. The connecting plate 5 is rotatably provided on the rotating arm 4. The extending direction of the rotation axis of the connecting plate 5 is the fourth direction. Any two of the fourth direction, the third direction and the first direction form an angle. The third driving part is provided on the rotating arm 4, and the third driving part can drive the connecting plate 5 to rotate relative to the rotating arm 4. For example, the connecting plate 5 is a feed connecting plate, and the feed connecting plate is the installation interface between the antenna mount and the feed part.

[0069] According to the embodiment of the present invention, the turntable 2 of the antenna mount for satellite communication can rotate relative to the base 1, the rotating arm 4 can rotate relative to the column 3 and the base 1, the connecting plate 5 can rotate relative to the rotating arm 4, and any two of the fourth direction (the extending direction of the rotation axis of the connecting plate 5), the third direction (the extending direction of the rotation axis of the rotating arm 4) and the first direction (the extending direction of the rotation axis of the turntable 2) form an angle. Thus, after the turntable 2, the rotating arm 4 and the connecting plate 5 rotate, it is convenient to change the position and orientation of the antenna. Therefore, after at least one of the turntable 2, the rotating arm 4 and the connecting plate 5 rotates, the antenna on the connecting plate 5 can be located at a suitable position, and further it is convenient to make the antenna align with the low-earth orbit satellite. That is, the antenna mount for satellite communication according to the embodiment of the present invention is an antenna mount for low-earth orbit satellite communication, which can facilitate the accurate alignment of the antenna.

[0070] Therefore, the antenna mount for satellite communication according to the embodiment of the present invention has the advantages of small size, light weight and being convenient for the antenna to align with the low-earth orbit satellite.

[0071] Such as Figures 1 to 3As shown, the base 1, the turntable 2, and the column 3 are arranged in sequence in the first direction. Specifically, the base 1 is a frame with the thickness direction being the first direction, and the outer peripheral contour of the base 1 is circular, that is, the base 1 is a circular frame. The turntable 2 is a plate with the thickness direction being the first direction, and the outer peripheral contour of the turntable 2 is rectangular, that is, the turntable 2 is a rectangular plate. The column 3 is a quadrangular prism, and the column 3 is connected to the side of the turntable 2. Thus, the turntable 2 and the column 3 can rotate together relative to the base 1, and the column 3 is arranged on the side of the turntable 2 facing away from the base 1 to improve the stability of the rotation of the turntable 2. For example, the base 1, the turntable 2, and the column 3 are arranged in sequence from bottom to top.

[0072] As Figures 1 to 3 shown, in some embodiments, the first driving part includes an azimuth motor 8, an azimuth first gear 81, and a slewing bearing 82.

[0073] The azimuth motor 8 is arranged on the turntable 2. The azimuth first gear 81 is connected to the output shaft of the azimuth motor 8. Specifically, the azimuth motor 8 is connected to the azimuth first gear 81 through a speed reducer.

[0074] The slewing bearing 82 includes a first ring body and a second ring body. The first ring body is fixed on the turntable 2, the second ring body is sleeved on the outer peripheral side of the first ring body, and the second ring body is connected to the base 1. The first ring body can rotate relative to the second ring body, that is, the turntable 2 can rotate relative to the second ring body through the first ring body. The extending direction of the rotation axis of the first ring body is the first direction. Teeth are provided on the outer peripheral side of the second ring body, and the second ring body meshes with the azimuth first gear 81. Thus, when the azimuth motor 8 drives the first gear 81 to rotate, the second ring body meshes with the azimuth first gear 81, so that the turntable 2 can rotate relative to the base 1 (the second ring body), thereby driving the turntable 2 to rotate and enabling 360° infinite rotation. The slewing bearing 82 integrates the bearing and the gear, effectively reducing the height in the first direction, and the slewing bearing 82 can make the rotation of the turntable 2 more stable.

[0075] As Figure 2 shown, in some embodiments, on the thickness direction of the turntable 2, there is a first connection surface 21 facing the column 3, and the column 3 is connected to a (one of the length directions) side of the first connection surface 21. The column 3 extends in the first direction along a position away from the center position of the first connection surface 21, and the center position of the first connection surface 21 is the position of the rotation axis of the turntable 2. That is, the second direction (the extending direction of the column 3) is the direction inclined in the first direction along a position away from the (length direction) center position of the first connection surface 21, and the distance between the column 3 and the center position of the turntable 2 increases in the first direction along a direction away from the turntable 2, so as to reserve enough use space for the rotating arm by the column 3.

[0076] Moreover, the column 3 has a second connecting surface 31 facing at least part of the rotating arm 4, and the included angle between the first connecting surface 21 and the second connecting surface 31 is greater than 90°. That is to say, the included angle between the first connecting surface 21 and the second connecting surface 31 is an obtuse angle, and at least part of the rotating arm 4 is located on the side of the column 3 with the second connecting surface 31, so that the column 3 leaves a pitching space for the rotating arm 4, and the second connecting surface 31 faces this pitching space, thereby facilitating the rotation of the rotating arm 4 and increasing the movement ability of the antenna in a complex environment. For example, the turntable 2 has a first connecting surface 21 facing the upper side, the column 3 is arranged obliquely upward and outward, and the column 3 has an inclined second connecting surface 31 facing the upper side.

[0077] As Figures 1 to 3 shown, in some embodiments, the third direction is perpendicular to the second direction, and the extending direction of the rotation axis of the rotating arm 4 is perpendicular to the extending direction of the column 3, so that the rotating arm 4 can be more stable when rotating. The third direction forms an included angle with the perpendicular plane of the first direction. The perpendicular plane of the first direction is a plane perpendicular to the rotation axis of the turntable 2 (for example, the first connecting surface 21), and the extending direction of the rotation axis of the rotating arm 4 forms an included angle with the perpendicular plane of the first direction (the first connecting surface 21), that is, the extending direction of the rotation axis of the rotating arm 4 is not parallel to the perpendicular plane of the first direction (the first connecting surface 21).

[0078] In some embodiments, the included angle between the second direction and the first direction is greater than or equal to 30° and less than or equal to 60°. That is, the included angle between the extending direction of the column 3 and the extending direction of the rotation axis of the turntable 2 (the perpendicular line of the second connecting surface 31) is greater than or equal to 30° and less than or equal to 60°. The column 3 is arranged obliquely relative to the turntable 2, and the inclination angle is greater than or equal to 30° and less than or equal to 60°, which can make the structures of the column 3 and the rotating arm more stable. And the occupied space of the column 3 can be reduced.

[0079] For example, the included angle between the extending direction of the column 3 and the extending direction of the rotation axis of the turntable 2 is 30°, and the included angle between the first connecting surface 21 and the second connecting surface 31 is 120°. The included angle between the extending direction of the column 3 and the extending direction of the rotation axis of the turntable 2 is 45°, and the included angle between the first connecting surface 21 and the second connecting surface 31 is 135°. The included angle between the extending direction of the column 3 and the extending direction of the rotation axis of the turntable 2 is 60°, and the included angle between the first connecting surface 21 and the second connecting surface 31 is 150°.

[0080] As Figures 1 to 3 shown, in some embodiments, the rotating arm 4 is a U-shaped structure, and the rotating arm 4 includes a first connecting rod 41, a second connecting rod 42 and a third connecting rod 43. The first connecting rod 41, the second connecting rod 42 and the third connecting rod 43 form the U-shaped structure of the rotating arm 4.

[0081] Both ends of the first connecting rod 41 are respectively connected to the second connecting rod 42 and the third connecting rod 43. The extending direction of the first connecting rod 41 is perpendicular to the third direction (the extending direction of the rotation axis of the rotating arm 4). The first connecting rod 41 is connected to the first rotating shaft, and the first connecting rod 41 is rotatably arranged on the column 3 through the first rotating shaft. The U-shaped structure can make the structure of the rotating arm 4 more stable, and it is convenient for both ends of the antenna to be connected to the rotating arm 4, so that the movement of the antenna can be more stable.

[0082] For example, two column plates opposite to each other in the third direction are provided at the top of the column 3. The first connecting rod 41 is rotatably arranged between the two column plates through the first rotating shaft. There are two limiting inclined surfaces at the top of the column 3, and the two limiting inclined surfaces can abut against the first connecting rod 41 to limit the rotation angle of the first connecting rod 41.

[0083] The second connecting rod 42 and the third connecting rod 43 are arranged opposite to each other in the fourth direction (the extending direction of the rotation axis of the connecting plate 5). The second connecting rod 42 and the third connecting rod 43 both extend along the third direction (the extending direction of the rotation axis of the rotating arm 4), and the second connecting surface 31 faces the second connecting rod 42 and the third connecting rod 43.

[0084] As Figures 1 to 3 shown, in some embodiments, the second driving part includes a roll motor 7, a first roll gear 71 and a second roll gear 72.

[0085] The roll motor 7 is arranged on the column 3. Specifically, a first through hole penetrating through it is provided in the middle of the column 3, and the roll motor 7 is arranged in the first through hole. The first through hole penetrates through the column 3 along the third direction (the extending direction of the rotation axis of the rotating arm 4), and the axial direction of the output shaft of the roll motor 7 is the third direction.

[0086] The first roll gear 71 is connected to the output shaft of the roll motor 7. Specifically, the output shaft of the roll motor 7 is connected to the first roll gear 71 through a roll planetary reducer.

[0087] The second roll gear 72 is connected to the first rotating shaft, that is, the second roll gear 72 is coaxially arranged with the rotating arm 4. The second roll gear 72 meshes with the first roll gear 71. The radius of the second roll gear 72 is greater than the radius of the first roll gear 71, and the second roll gear 72 can drive the rotating arm 4 to rotate. The second roll gear 72 is connected to the first connecting rod 41 through bolts. Specifically, the second roll gear 72 is connected to the first connecting rod 41 of the rotating arm 4 through bolts on both sides of the first rotating shaft. Thus, when the roll motor 7 drives the first roll gear 71 to rotate, the second roll gear 72 can be driven to rotate, and when the second roll gear 72 rotates, the rotating arm 4 can be driven to rotate. The power and movement on the roll motor 7 are transmitted through precise gear meshing transmission to achieve the function of speed reduction and distance increase.

[0088] In some embodiments, the second roll gear 72 is a sector gear, and the total circumferential angle of the second roll gear 72 is greater than or equal to 45° and less than or equal to 90°. For example, the total circumferential angle of the second roll gear 72 is 60°, and the rotation angle of the rotating arm 4 relative to the column 3 is ±30°. That is, the rotating arm 4 can rotate 30° clockwise relative to the column 3, and the rotating arm 4 can rotate 30° counterclockwise relative to the column 3.

[0089] As Figures 1 to 3 shown, the connecting plate 5 is connected to the second rotating shaft, the second rotating shaft is rotatably arranged on the second connecting rod 42, a third rotating shaft rotatably connected thereto is arranged on the third connecting rod 43, the third rotating shaft is coaxially arranged with the second rotating shaft, and an auxiliary plate 51 is arranged on the third rotating shaft. The auxiliary plate 51 cooperates with the connecting plate 5 for installing the antenna. Specifically, the connecting plate 5 and the auxiliary plate 51 are oppositely arranged in the fourth direction, both the connecting plate 5 and the auxiliary plate 51 are provided with connecting holes, and both ends of the antenna in the fourth direction can be connected to the connecting plate 5 and the auxiliary plate 51, and the cooperation between the auxiliary plate 51 and the connecting plate 5 can make the movement of the antenna stable.

[0090] As Figures 1 to 3 shown, in some embodiments, the third driving part includes a pitching motor 6, a first pitching gear 61 and a second pitching gear 62.

[0091] The pitching motor 6 is fixed on the second connecting rod 42, and the first pitching gear 61 is connected to the output shaft of the pitching motor 6. Specifically, the output shaft of the pitching motor 6 is connected to the first pitching gear 61 through a pitching planetary reducer.

[0092] The second pitching gear 62 is connected to the second rotating shaft, that is, the second pitching gear 62 is coaxially arranged with the connecting plate 5. When the second pitching gear 62 rotates, it can drive the connecting plate 5 to rotate through the second rotating shaft. The second pitching gear 62 meshes with the first pitching gear 61, and the radius of the second pitching gear 62 is greater than the radius of the first pitching gear 61.

[0093] As Figures 1 to 3 shown, in some embodiments, the second pitching gear 62 is a sector gear, and the total circumferential angle of the second pitching gear 62 is greater than or equal to 90° and less than or equal to 150°. For example, the total circumferential angle of the second pitching gear 62 is 120°, that is, the connecting plate 5 can rotate 120° relative to the rotating arm 4.

[0094] In some embodiments, the backlash of the gears in the first driving part, the second driving part and the third driving part is less than or equal to 0.2 mm. For example, the backlash of the gears in the first driving part, the second driving part and the third driving part is 0.1 mm.

[0095] As Figures 1 to 3As shown, in some embodiments, the pedestal of the satellite communication antenna further includes an inertial navigation system 93, a positioning module 94, and a control module 95.

[0096] The inertial navigation system 93 is disposed on the base 1, and the inertial navigation system 93 is used to collect antenna attitude information in real time. The positioning module 94 is disposed on the base 1, and the positioning module 94 is used to collect the longitude and latitude information of the site where the antenna is located in real time. For example, the positioning module 94 is a Beidou module.

[0097] The control module 95 is disposed on the turntable 2, and the control module 95 is electrically connected to the inertial navigation system 93 and the positioning module 94 to receive the antenna attitude information and the longitude and latitude information of the site where the antenna is located. The control module 95 is electrically connected to the driver of each of the first driving part, the second driving part, and the third driving part. The control module 95 can control the rotation speed and rotation angle of each of the turntable 2, the rotating arm 4, and the connecting plate 5, so as to facilitate the antenna to point at the satellite, that is, the inertial navigation system 93, the positioning module 94, and the control module 95 cooperate with the driver of each of the first driving part, the second driving part, and the third driving part, which can improve the speed, accuracy, and stability of the antenna pointing at the satellite. For example, the control module 95 is electrically connected to the pitching motor 6, the rolling motor 7, and the azimuth motor 8, and the control module 95 can control the rotation speed and rotation angle of each of the turntable 2, the rotating arm 4, and the connecting plate 5.

[0098] As Figure 1 and Figure 4 shown, in some embodiments, the pedestal of the satellite communication antenna further includes a cover body, and the cover body includes a first cover body 9 and a second cover body (not shown in the figure).

[0099] The first cover body 9 includes a bottom ring plate 91 and a side ring plate 92, and the axial directions of both the bottom ring plate 91 and the side ring plate 92 are the first direction. The thickness direction of the bottom ring plate 91 is the first direction, the side ring plate 92 extends along the first direction, and the base 1 is fixed on the bottom ring plate 91. The bottom ring plate 91, the side ring plate 92, and the second cover body are connected in sequence in the first direction. For example, the bottom ring plate 91, the side ring plate 92, and the second cover body are connected in sequence from bottom to top. The base 1 is fixed on the top of the bottom ring plate 91, so as to facilitate reducing the height of the pedestal of the satellite communication antenna in the first direction (up and down direction), and thus the center of gravity of the pedestal can be lowered and the rotation can be more stable.

[0100] At least one mounting opening penetrating through it is provided on the side ring plate 92, and this mounting opening is a power supply interface and a service interface. For example, a slip ring 96 is provided on the base 1, and the RF cable passes through the service interface and is connected to the rotating part of the slip ring 96, so as not to affect the RF cable when the base 1 rotates.

[0101] The first cover 9 and the second cover form a protection cavity relatively. The base 1, the turntable 2, the column 3, the rotating arm 4 and the connecting plate 5 (as well as the antenna, the first driving part, the second driving part and the third driving part) are all located in the protection cavity. Thus, it is convenient for the protection cavity to protect the base 1, the turntable 2, the column 3, the rotating arm 4 and the connecting plate 5 (as well as the antenna, the first driving part, the second driving part and the third driving part), so as to facilitate the protection of the equipment in the cover, in order to improve the service life of the equipment. Specifically, the cover is made of wave-transparent material so that the antenna can communicate with the satellite conveniently. For example, the first cover 9 is made of fiberglass, the second cover is made of quartz fiber, and the second cover can transmit electromagnetic waves.

[0102] In some embodiments, the cover is a cylindrical structure extending in the first direction. The dimension of the cover in the first direction is less than or equal to 600 mm, and the outer diameter of the cover is less than or equal to 600 mm. For example, the dimension of the cover in the first direction is 550 mm, and the outer diameter of the cover is equal to 600 mm.

[0103] The present invention also provides a communication antenna. The communication antenna according to the embodiment of the present invention includes an antenna and an antenna pedestal for satellite communication according to the embodiment of the present invention. The connecting plate of the antenna pedestal for satellite communication according to the embodiment of the present invention is connected to the antenna (feed line / feed part).

[0104] The present invention also provides a terminal device. The terminal device according to the embodiment of the present invention includes the communication antenna according to the embodiment of the present invention. For example, the terminal device can be a low-earth-orbit broadband terminal, which is used to support high-speed broadband data service transmission and has the ability to access the low-earth-orbit Ka band. The terminal device can be a geosynchronous-orbit broadband terminal, which is used to support high-speed broadband data service transmission and has the ability to access the geosynchronous-orbit Ka band. The terminal device can be a low-earth-orbit narrowband data terminal, which is used to support medium data services, voice services and short message services, and at the same time has functions such as data relay, hotspot sharing, video backhaul and location services.

[0105] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0106] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0107] In the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0109] In the present invention, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0110] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present invention.

Claims

1. An antenna pedestal for satellite communication, characterized in that, comprising: a base, the thickness direction of the base being the first direction; a turntable, the thickness direction of the turntable being the first direction, the turntable being rotatably provided on the base, and the extending direction of the rotation axis of the turntable being the first direction; a first driving part, the first driving part being capable of driving the turntable to rotate relative to the base; a column, the column being provided on the turntable, the column extending in a second direction, the second direction forming an angle with the first direction, and the angle between the second direction and the first direction being less than 90°; a rotating arm, the rotating arm being rotatably provided on the column, and the extending direction of the rotation axis of the rotating arm being the third direction; a second driving part, the second driving part being provided on the column, and the second driving part being capable of driving the rotating arm to rotate relative to the column; a connecting plate for mounting an antenna, the connecting plate being rotatably provided on the rotating arm, the extending direction of the rotation axis of the connecting plate being the fourth direction, and any two of the fourth direction, the third direction and the first direction forming an angle; a third driving part, the third driving part being provided on the rotating arm, and the third driving part being capable of driving the connecting plate to rotate relative to the rotating arm.

2. The antenna pedestal for satellite communication according to claim 1, characterized in that, the base, the turntable and the column are arranged in sequence in the first direction; the rotating arm is of a U-shaped structure, the rotating arm includes a first connecting rod, a second connecting rod and a third connecting rod, both ends of the first connecting rod are respectively connected to the second connecting rod and the third connecting rod, the extending direction of the first connecting rod is perpendicular to the third direction, the first connecting rod is connected to a first rotating shaft, and the first connecting rod is rotatably provided on the column through the first rotating shaft; the connecting plate is connected to a second rotating shaft, the second rotating shaft is rotatably provided on the second connecting rod, a third rotating shaft rotatably connected thereto is provided on the third connecting rod, the third rotating shaft is coaxially arranged with the second rotating shaft, and an auxiliary plate is provided on the third rotating shaft, and the auxiliary plate cooperates with the connecting plate for mounting the antenna.

3. The antenna pedestal for satellite communication according to claim 2, characterized in that, the third driving part includes a pitching motor fixed on the second connecting rod; a first pitching gear connected to the output shaft of the pitching motor; a second pitching gear connected to the second rotating shaft, the second pitching gear meshing with the first pitching gear, and the radius of the second pitching gear being greater than the radius of the first pitching gear.

4. The antenna pedestal for satellite communication according to claim 3, characterized in that, the second driving part includes a rolling motor provided on the column; a first rolling gear connected to the output shaft of the rolling motor; The second roll gear, which is connected to the first rotating shaft, meshes with the first roll gear. The radius of the second roll gear is greater than that of the first roll gear, and the second roll gear can drive the rotating arm to rotate.

5. The antenna pedestal for satellite communication according to claim 4, wherein, the second connecting rod and the third connecting rod are oppositely arranged in the fourth direction; both the second connecting rod and the third connecting rod extend along the third direction; a first through hole penetrating through the middle of the column is provided, and the roll motor is arranged in the first through hole; the second pitch gear is a sector gear, and the total circumferential angle of the second pitch gear is greater than or equal to 90° and less than or equal to 150°; the second roll gear is connected to the first connecting rod by bolts; the second roll gear is a sector gear, and the total circumferential angle of the second roll gear is greater than or equal to 45° and less than or equal to 90°.

6. The antenna pedestal for satellite communication according to claim 1, wherein, the third direction is perpendicular to the second direction, and the third direction forms an angle with the plane perpendicular to the first direction; the angle between the second direction and the first direction is greater than or equal to 30° and less than or equal to 60°; a first connection surface facing the column is provided in the thickness direction of the turntable, the column is connected to the side of the first connection surface, the column extends along the center position away from the first connection surface in the first direction, and the column has a second connection surface facing at least part of the rotating arm, and the angle between the first connection surface and the second connection surface is greater than 90°.

7. The antenna pedestal for satellite communication according to claim 1, wherein, the first driving part includes an azimuth motor arranged on the turntable; an azimuth first gear connected to the output shaft of the azimuth motor; a slewing bearing, which includes a first ring body and a second ring body. The first ring body is fixed on the turntable, the second ring body is sleeved on the outer peripheral side of the first ring body, the second ring body is connected to the base, the second ring body and the first ring body can rotate relative to each other, the extending direction of the rotation axis of the first ring body is the first direction, teeth are provided on the outer peripheral side of the second ring body, and the second ring body meshes with the azimuth first gear.

8. The antenna pedestal for satellite communication according to claim 1, wherein, further includes an inertial navigation system arranged on the base, and the inertial navigation system is used for collecting antenna attitude information in real time; a positioning module arranged on the base, and the positioning module is used for collecting longitude and latitude information of the site where the antenna is located in real time; A control module is provided on the turntable. The control module is electrically connected to the inertial navigation system and the positioning module to receive antenna attitude information and the longitude and latitude information of the site where the antenna is located. The control module is electrically connected to the drivers of each of the first driving part, the second driving part, and the third driving part. The control module can control the rotation speed and rotation angle of each of the turntable, the rotating arm, and the connecting plate.

9. The antenna pedestal for satellite communication according to any one of claims 1-8, characterized in that it further includes a cover body, and the cover body includes a first cover body, the first cover body includes a bottom ring plate and a side ring plate. The thickness direction of the bottom ring plate is the first direction, the side ring plate extends along the first direction, the base is fixed on the bottom ring plate, and at least one mounting opening penetrating through it is provided on the side ring plate; a second cover body, the bottom ring plate, the side ring plate, and the second cover body are sequentially connected in the first direction. A protection cavity is formed opposite the first cover body and the second cover body. The base, the turntable, the column, the rotating arm, and the connecting plate are all located in the protection cavity.

10. The antenna pedestal for satellite communication according to claim 9, characterized in that the cover body is a cylindrical structure extending along the first direction. The dimension of the cover body in the first direction is less than or equal to 600 mm, and the outer diameter of the cover body is less than or equal to 600 mm.

11. A communication antenna, characterized in that it includes: an antenna; an antenna pedestal for satellite communication, the antenna pedestal for satellite communication is the antenna pedestal for satellite communication according to any one of claims 1-10, and the connecting plate of the antenna pedestal for satellite communication is connected to the antenna.

12. A terminal device, characterized in that it includes the communication antenna according to claim 11.

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