Antenna device with double Beidou antenna modules

Abstract

The utility model provides an antenna device with double Beidou antenna modules, and the antenna device comprises an antenna pot surface, the edge of which forms a flanging structure; the antenna feed source is configured on the central axis of the antenna pot surface; the first Beidou antenna module is mounted at a first position of the end surface of the flanging structure; the second Beidou antenna module is mounted at a second position of the end surface of the flanging structure; the differential positioning and inertial navigation module is used for determining a real-time azimuth angle of an antenna pot surface based on a satellite signal received by the first Beidou antenna module and a satellite signal received by the second Beidou antenna module; the connecting line of the first position and the second position is perpendicular to the central axis, and the connecting line of the first position and the second position passes through the supporting shaft of the antenna feed source.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of satellite antennas, and in particular to an antenna device with double Beidou antenna modules. BACKGROUND

[0002] In a marine satellite antenna system, a compass is traditionally used to achieve the function. Without the compass, the antenna can only rotate 360 degrees to search for a signal, which is not only time-consuming, but also causes low efficiency and mislocking. CONTENT

[0003] The antenna device with double Beidou antenna modules of the present disclosure is achieved by the following technical solutions.

[0004] The antenna device with double Beidou antenna modules comprises:

[0005] An antenna pot surface, the edge of the antenna pot surface forms a flange structure;

[0006] An antenna feed source, the antenna feed source is arranged on the central axis of the antenna pot surface;

[0007] A first Beidou antenna module, the first Beidou antenna module is installed at a first position of the end surface of the flange structure;

[0008] A second Beidou antenna module, the second Beidou antenna module is installed at a second position of the end surface of the flange structure;

[0009] A differential positioning and inertial navigation module, the differential positioning and inertial navigation module determines the real-time azimuth angle of the antenna pot surface based on the satellite signals received by the first Beidou antenna module and the satellite signals received by the second Beidou antenna module;

[0010] Wherein, the line connecting the first position and the second position is perpendicular to the central axis, and the line connecting the first position and the second position passes through the support shaft of the antenna feed source.

[0011] According to the antenna device with double Beidou antenna modules of any one of the embodiments of the present disclosure, the central axis of the antenna pot surface is perpendicular to the plane where the end surface of the flange structure is located.

[0012] According to the antenna device with double Beidou antenna modules of any one of the embodiments of the present disclosure, the first Beidou antenna module and the second Beidou antenna module are the same Beidou antenna module.

[0013] According to any one of the embodiments of the present disclosure, the antenna device with double Beidou antenna modules, the differential positioning and inertial navigation module has a first transmission interface and a second transmission interface, the first Beidou antenna module is connected with the differential positioning and inertial navigation module through the first transmission interface, and the second Beidou antenna module is connected with the differential positioning and inertial navigation module through the second transmission interface.

[0014] According to any one of the embodiments of the present disclosure, the antenna device with double Beidou antenna modules, the antenna device further comprises:

[0015] The antenna elevation control module comprises an elevation motor, an elevation belt, an elevation pulley and an elevation plate, the elevation pulley is fixedly connected with the back of the antenna pot surface, the elevation motor drives the elevation pulley to rotate through the elevation belt to drive the antenna pot surface to rotate, the elevation plate is fixed on the elevation pulley and can rotate with the elevation pulley, and the differential positioning and inertial navigation module is installed on the elevation plate.

[0016] According to any one of the embodiments of the present disclosure, the antenna device with double Beidou antenna modules, the elevation plate is installed on the side surface of the elevation pulley, so that the rotation of the elevation pulley is avoided to be interfered.

[0017] According to any one of the embodiments of the present disclosure, the antenna device with double Beidou antenna modules, the antenna device further comprises:

[0018] The antenna azimuth control module controls the azimuth angle of the antenna device based on a control signal.

[0019] According to any one of the embodiments of the present disclosure, the antenna device with double Beidou antenna modules, the antenna device further comprises:

[0020] The antenna control system is used for generating the control signal;

[0021] The differential positioning and inertial navigation module is configured with a third transmission interface;

[0022] The antenna control system is connected with the third transmission interface, the antenna control system receives a real-time azimuth angle transmitted by the differential positioning and inertial navigation module and generates the control signal based on the real-time azimuth angle to control the antenna azimuth control module.

[0023] According to any one of the embodiments of the present disclosure, the antenna device with double Beidou antenna modules, the antenna azimuth control module comprises an azimuth motor, an azimuth belt, an azimuth gear, an azimuth encoder, an azimuth bearing and an azimuth shaft.

[0024] The azimuth axis is rotatably mounted on the chassis of the antenna device via the azimuth bearing;

[0025] The azimuth motor outputs a rotation action based on the control signal generated by the antenna control system. The rotation action output by the azimuth motor is transmitted to the azimuth shaft via the azimuth belt to drive the antenna dish to rotate in azimuth.

[0026] The azimuth gear rotates synchronously with the azimuth axis so that the azimuth encoder measures the azimuth angle of the antenna device based on the rotation of the azimuth gear.

[0027] According to any embodiment of the present disclosure, an antenna device with dual BeiDou antenna modules is provided, wherein the differential positioning and inertial navigation module includes a differential positioning module and an inertial navigation module. The differential positioning module generates position information of the antenna device based on satellite signals received by the first BeiDou antenna module and satellite signals received by the second BeiDou antenna module, and the inertial navigation module generates navigation information based on the position information. Attached Figure Description

[0028] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0029] Figure 1 This is a frontal view of the structure of an antenna device according to one embodiment of the present disclosure.

[0030] Figure 2 yes Figure 1 The diagram shows a schematic block representation of the antenna device from a side view.

[0031] Figure 3 yes Figure 2 The diagram shows a top view of the antenna device.

[0032] Figure 4 This is a structural schematic diagram of an antenna device according to one embodiment of the present disclosure, viewed from the rear. Detailed Implementation

[0033] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0034] It should be noted that the embodiments and features of the embodiments in the present disclosure can be combined with each other in the case of no conflict. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] Unless otherwise specified, the exemplary embodiments / examples shown will be understood as providing exemplary features of various details that can implement the technical ideas of the present disclosure in practice. Therefore, unless otherwise specified, the features of various embodiments / examples can be additionally combined, separated, interchanged and / or rearranged without departing from the technical ideas of the present disclosure.

[0036] In the drawings, cross-hatching and / or shading are generally used to indicate that a portion of one component is positioned above another component. As such, unless otherwise specified, the presence of cross-hatching or shading is not a requirement of the claimed disclosure and does not convey or imply any preference or requirement for specific material, material properties, dimensions, proportions, commonality of the illustrated components, or any other characteristic, attribute, property, or the like of the components. In addition, for clarity and / or descriptive purposes, the dimensions and / or relative dimensions of the components shown in the figures can be exaggerated. When the exemplary embodiments can be implemented differently, a specific process sequence can be performed in a different order from that described. For example, two consecutively described processes can be performed substantially simultaneously or in an order opposite to that described. In addition, the same reference numerals represent the same components.

[0037] When a component is referred to as being "on" or "over" another component, "connected to" or "coupled to" another component, it can be directly on, directly connected to, or directly coupled to the other component, or an intermediate component can be present. However, when a component is referred to as being "directly on", "directly connected to", or "directly coupled to" another component, there is no intermediate component. For this reason, the term "connected" can refer to a physical connection, an electrical connection, etc., with or without an intermediate component.

[0038] For descriptive purposes, the present disclosure can use spatially relative terms, such as "below," "lower," "under," "downward," "upward," "above," "higher," and the like, with respect to a component, to describe the relationship between one component and another component, as the figure(s) shown. The spatially relative terms are intended to encompass different positions of the device in use, operation, and / or manufacture in the different orientations. For example, if the device in the figure(s) is turned over, a component described as "below" or "under" another component would then be oriented "above" the other component. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0039] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "including," "includes," "having," "has," "with," or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term "comprising." It is also noted that the terms "substantial," "approximately," and other similar terms, as used herein, are used in a relative sense and not in an absolute sense. Thus, they are used to explain that a given value, calculation, and / or provided value is close to an actual value, calculation, and / or provided value, respectively, that would be recognized by one of ordinary skill in the art.

[0040] Figure 1 is a structural schematic diagram of a front view of an antenna device of one embodiment of the present disclosure.

[0041] With reference to Figure 1 , the antenna device with dual Beidou antenna modules of the present disclosure comprises:

[0042] an antenna pot surface 101, an edge of the antenna pot surface 101 forming a flange structure 1011;

[0043] an antenna feed source 102, the antenna feed source 102 being arranged on a central axis of the antenna pot surface 101;

[0044] a first Beidou antenna module 104, the first Beidou antenna module 104 being mounted at a first position of an end surface of the flange structure 1011;

[0045] The second Beidou antenna module 105 is installed at a second position on the end surface of the flange structure 1011.

[0046] The differential positioning and inertial navigation module 106 determines the real-time azimuth angle of the antenna dish 101 based on the satellite signals received by the first Beidou antenna module 104 and the satellite signals received by the second Beidou antenna module 105.

[0047] The line connecting the first position and the second position is perpendicular to the central axis, and the line connecting the first position and the second position passes through the support shaft 103 of the antenna feed 102.

[0048] The Beidou antenna module is an electronic component specially designed for receiving Beidou satellite navigation system (BDS) signals. The Beidou antenna module generally includes an antenna and a signal processing circuit, and can also include an amplifier, a filter and other necessary electronic elements. It is responsible for receiving weak radio signals from Beidou satellites and converting them into electrical signals, which are then passed to receiving devices for further processing, such as decoding position information, etc. The first Beidou antenna module and the second Beidou antenna module of the present disclosure can use commercial Beidou antenna modules, which are not particularly limited in the present disclosure.

[0049] The antenna feed is a basic component of parabolic antennas, Cassegrain antennas, etc., and is a primary radiator of high-gain antennas. Configuring an antenna feed on an antenna dish is a prior art.

[0050] The azimuth angle is the rotation angle of a satellite receiving antenna (i.e. the antenna device of the present disclosure) in the horizontal plane from 0° to 360°, which is used to adjust the pointing direction of the antenna. The measurement of the azimuth angle is usually based on the direction of true north, and the horizontal angle of the target direction line is rotated clockwise.

[0051] The antenna device of the present disclosure receives Beidou satellite signals through dual Beidou antenna modules, and can use a differential positioning and inertial navigation module (which can use an existing module) to perform differential positioning on the antenna device.

[0052] In some embodiments, the differential positioning and inertial navigation module 106 includes a differential positioning module and an inertial navigation module, both of which can use existing modules. The differential positioning module generates position information of the antenna device based on the satellite signals received by the first Beidou antenna module 104 and the satellite signals received by the second Beidou antenna module 105, and the inertial navigation module generates navigation information based on the position information.

[0053] When the dual-Beidou antenna module of the present disclosure is used simultaneously, the direction angle of the line connecting the two coordinate points (i.e. the positions of the two Beidou antenna modules in the global coordinate system) can be calculated according to the difference between the two coordinate systems (the local coordinate systems defined by the two Beidou antenna modules respectively), and the real-time azimuth angle of the antenna dish surface 101 can be determined through differential calculation.

[0054] The antenna device with dual-Beidou antenna module of the present disclosure fixes the dual-Beidou antenna module to the antenna dish surface 101, and can determine the current antenna dish pointing angle, i.e. the real-time azimuth angle, in real time. Then, according to the target azimuth angle calculated from the positioning information provided by one of the dual-Beidou antenna modules, the difference between the real-time azimuth angle and the target azimuth angle can be used to control the antenna device to point directly to the target azimuth angle, thus eliminating the process of 360-degree rotation scanning of the signal by the antenna device.

[0055] The antenna device with dual-Beidou antenna module of the present disclosure, by configuring the dual-Beidou antenna module and the differential positioning and inertial navigation module (i.e. the differential inertial navigation module), significantly improves the speed of azimuth orientation, effectively shortens the positioning and orientation time, and breaks away from the dependence on traditional satellite auxiliary equipment.

[0056] In particular, the present disclosure designs the specific configuration position and method of the dual-Beidou antenna module on the antenna dish surface, which can accurately obtain the real-time azimuth angle of the antenna dish surface.

[0057] The support shaft 103 of the antenna feed source 102 can be a polarization axis.

[0058] Continuing to refer to Figure 1 In the preferred embodiment of the present disclosure, the central axis of the antenna dish surface 101 of the present disclosure is perpendicular to the plane in which the end surface of the flange structure 1011 is located.

[0059] The central axis of the antenna dish surface 101 is also the central axis of the support shaft 103, and the support shaft 103 has a radial dimension. The feed source 102 is mounted at one end of the support shaft 103.

[0060] The first Beidou antenna module 104 and the second Beidou antenna module 105 in the present disclosure are the same Beidou antenna module.

[0061] Figure 1 The figure also shows the angle between the line connecting the first Beidou antenna module 104 and the second Beidou antenna module 105 and the horizontal plane, which is the antenna roll angle.

[0062] Figure 2 is Figure 1 The structure schematic diagram of the side view of the antenna device is shown.

[0063] Referring to Figure 2, the antenna device further comprises:

[0064] an antenna elevation control module 109, the antenna elevation control module 109 comprising an elevation motor, an elevation belt, an elevation pulley and an elevation plate 1091, the elevation pulley being fixedly connected with the back of the antenna pot surface, the elevation motor driving the elevation pulley to rotate via the elevation belt to drive the antenna pot surface 101 to rotate in elevation, the elevation plate 1091 being fixed on the elevation pulley and being capable of rotating with the elevation pulley, the differential positioning and inertial navigation module 106 being installed on the elevation plate 1091.

[0065] Wherein, the specific cooperation mode of the elevation motor, the elevation belt and the elevation pulley of the antenna elevation control module 109 can refer to the prior patent application (CN202223508816.4, CN202223495134.4) of the applicant, and the cooperation mode of these components is not particularly limited in the present disclosure, as long as the elevation control of the antenna device can be realized, which falls within the protection scope of the present disclosure.

[0066] The present disclosure installs the elevation plate 1091 on the side of the elevation pulley, avoiding interference with the rotation of the elevation pulley.

[0067] Continuing to refer to Figure 2 , the antenna device of the present disclosure further comprises:

[0068] an antenna azimuth control module 107, the antenna azimuth control module 107 controlling the azimuth angle of the antenna device based on a control signal.

[0069] Wherein, the antenna azimuth control module 107 can adopt the antenna azimuth control module in the prior patent application (CN202223508816.4, CN202223495134.4) of the applicant, and the present disclosure does not particularly limit the antenna azimuth control module, as long as the azimuth control of the antenna device can be realized, which falls within the protection scope of the present disclosure.

[0070] Exemplarily, the antenna azimuth control module 107 comprises an azimuth motor, an azimuth belt, an azimuth gear, an azimuth encoder, an azimuth bearing and an azimuth shaft;

[0071] The azimuth shaft is rotatably installed on the chassis of the antenna device via the azimuth bearing;

[0072] The azimuth motor outputs a rotating action based on the control signal generated by the antenna control system 108, and the rotating action output by the azimuth motor is transmitted to the azimuth shaft via the azimuth belt to drive the antenna pot surface to rotate in azimuth;

[0073] The azimuth gear rotates synchronously with the azimuth shaft, so that the azimuth encoder measures the azimuth angle of the antenna device based on the rotation of the azimuth gear.

[0074] Figure 3 is Figure 2 A structural schematic diagram of a top view of the antenna device.

[0075] With reference to Figure 3 The differential positioning and inertial navigation module 106 is installed on the right side behind the antenna dish 101, and can also be installed on the left side behind the antenna dish 101, both of which fall within the protection scope of the present disclosure.

[0076] Figure 4 is a structural schematic diagram of a back view of the antenna device of one embodiment of the present disclosure.

[0077] With reference to Figure 4 The differential positioning and inertial navigation module 106 has a first transmission interface 1061 and a second transmission interface 1062, the first Beidou antenna module 104 is connected with the differential positioning and inertial navigation module 106 via the first transmission interface 1061, and the second Beidou antenna module 105 is connected with the differential positioning and inertial navigation module 106 via the second transmission interface 1062.

[0078] The above three transmission interfaces can all transmit signals / data through cables.

[0079] With reference to Figure 4 In some embodiments of the present disclosure, the antenna device further comprises an antenna roll control module 110, which can include a roll motor, a roll belt, and a roll pulley, the roll pulley is fixedly connected with the back of the antenna dish, and the roll motor drives the roll pulley to rotate via the roll belt to drive the antenna dish to rotate.

[0080] Those skilled in the art can change or adjust the specific configuration of the antenna roll control module under the inspiration of the technical solutions of the present disclosure, as long as the roll control of the antenna device can be realized, which falls within the protection scope of the present disclosure.

[0081] With reference to Figure 4 The antenna device of the present disclosure further comprises:

[0082] An antenna control system 108, which is used to generate the control signal.

[0083] The differential positioning and inertial navigation module 106 is configured with a third transmission interface 1063.

[0084] The antenna control system 108 is connected with the third transmission interface 1063, and the antenna control system 108 receives the real-time azimuth angle transmitted by the differential positioning and inertial navigation module 106 and generates the control signal based on the real-time azimuth angle to control the antenna azimuth control module.

[0085] The antenna control system 108 can include an antenna control mainboard and the like, which are prior art, and the specific circuit configuration of the present disclosure is not particularly limited.

[0086] The working process of the antenna device of the present disclosure is as follows:

[0087] The differential positioning and inertial navigation module of the present disclosure is fixed on the pitch plate at the right rear of the antenna pot surface, and the differential positioning and inertial navigation module receives the signals transmitted by the two Beidou antenna modules, and performs identification and calculation. The current position coordinates of the antenna device can be calculated through the coordinate system of one of the Beidou antenna modules, the differential inertial navigation module outputs data to the antenna control system, and the antenna control system controls the antenna device to rotate to the specified pitch angle and roll angle. Next, the antenna device keeps the fixed pitch angle and fixed roll angle attitude all the time in the moving. Through the different coordinate system position values of the first Beidou antenna module and the second Beidou antenna module, the differential inertial navigation module calculates and processes the real-time pointing angle of the antenna pot surface, that is, the real-time azimuth angle, and outputs it to the antenna control system. The antenna control system controls the antenna device to directly rotate to the specified azimuth angle, and completes accurate real-time tracking of the star.

[0088] In the description of the present disclosure, the description of the terms "one embodiment / way", "some embodiments / ways", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present disclosure. In the present disclosure, the illustrative description of the above terms does not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments / ways or examples. In addition, the skilled in the art can combine and combine the different embodiments / ways or examples described in the present disclosure and the features of the different embodiments / ways or examples without contradiction.

[0089] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0090] Those skilled in the art will understand that the above-described embodiments are merely intended to clarify the present disclosure, and are not intended to limit the scope of the present disclosure. Other changes or modifications can be made by those skilled in the art based on the above disclosure, and the changes or modifications are still within the scope of the present disclosure.

Claims

1. An antenna device having a dual-beidou antenna module, characterized in that, Comprise: an antenna pan, an edge of the antenna pan forms a flange structure; an antenna feed source, the antenna feed source is arranged on a central axis of the antenna pan; a first Beidou antenna module, the first Beidou antenna module is installed at a first position of an end surface of the flange structure; a second Beidou antenna module, the second Beidou antenna module is installed at a second position of the end surface of the flange structure; and a differential positioning and inertial navigation module, the differential positioning and inertial navigation module determines a real-time azimuth angle of the antenna pan based on satellite signals received by the first Beidou antenna module and satellite signals received by the second Beidou antenna module; Wherein, the line connecting the first position and the second position is perpendicular to the central axis, and the line connecting the first position and the second position passes through the support shaft of the antenna feed source. The central axis of the antenna pan is perpendicular to the plane where the end surface of the flange structure is located.

2. The antenna device having dual Beidou antenna modules according to claim 1, characterized in that, The first Beidou antenna module and the second Beidou antenna module are the same Beidou antenna module.

3. The antenna device having dual Beidou antenna modules according to claim 1, characterized in that, The differential positioning and inertial navigation module has a first transmission interface and a second transmission interface, the first Beidou antenna module is connected with the differential positioning and inertial navigation module through the first transmission interface, and the second Beidou antenna module is connected with the differential positioning and inertial navigation module through the second transmission interface.

4. The antenna device having dual Beidou antenna modules according to claim 1, characterized in that, The antenna device further comprises:

5. The antenna device having dual Beidou antenna modules according to claim 1, characterized in that, an antenna elevation control module, the antenna elevation control module comprises an elevation motor, an elevation belt, an elevation pulley and an elevation plate, the elevation pulley is fixedly connected with the back of the antenna pan, the elevation motor drives the elevation pulley to rotate through the elevation belt to drive the antenna pan to rotate, the elevation plate is fixed on the elevation pulley and can rotate with the elevation pulley, and the differential positioning and inertial navigation module is installed on the elevation plate. The elevation plate is installed on the side surface of the elevation pulley, avoiding interference with the rotation of the elevation pulley.

6. The antenna device with dual Beidou antenna module according to claim 5, characterized in that, The antenna device further comprises:

7. The antenna device having dual Beidou antenna modules according to claim 1, characterized in that, an antenna azimuth control module, the antenna azimuth control module controls the azimuth angle of the antenna device based on a control signal. The antenna device further comprises:

8. The antenna device with dual Beidou antenna module according to claim 7, characterized in that, an antenna control system, the antenna control system is used for generating the control signal; The differential positioning and inertial navigation module is provided with a third transmission interface; The antenna control system is connected with the third transmission interface, the antenna control system receives the real-time azimuth angle transmitted by the differential positioning and inertial navigation module and generates the control signal based on the real-time azimuth angle to control the antenna azimuth control module. The antenna azimuth control module comprises an azimuth motor, an azimuth belt, an azimuth gear, an azimuth encoder, an azimuth bearing and an azimuth shaft; 9. The antenna device with dual Beidou antenna module according to claim 8, characterized in that, The azimuth shaft is rotatably installed on the chassis of the antenna device through the azimuth bearing; The azimuth motor outputs a rotating action based on the control signal generated by the antenna control system, and the rotating action output by the azimuth motor is transmitted to the azimuth shaft through the azimuth belt to drive the antenna pan to rotate azimuthally. ​ The azimuth gear rotates synchronously with the azimuth shaft, so that the azimuth encoder measures an azimuth angle of the antenna device based on rotation of the azimuth gear.

10. The antenna device with dual Beidou antenna module according to claim 9, characterized in that, The differential positioning and inertial navigation module includes a differential positioning module and an inertial navigation module, the differential positioning module generates position information of the antenna device based on satellite signals received by the first Beidou antenna module and satellite signals received by the second Beidou antenna module, and the inertial navigation module generates navigation information based on the position information.

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