Intelligent control device and method for stabilizing antenna polarization direction

Abstract

The invention discloses an intelligent control device and method for stabilizing an antenna polarization direction, and belongs to the technical field of antenna polarization stability control. The intelligent control device for stabilizing the antenna polarization direction comprises a fixed base and an antenna fixing frame, the antenna fixing frame is connected to the fixed base through a motor servo mechanism, and the fixed base is installed parallel to the working face of a swing platform and swings along with the swing platform. The tilt angle sensor installed on the fixing base can detect the transverse and longitudinal swing angles of the swing platform and transmit the detection result to the motor control unit, and the motor control unit controls the motor servo mechanism to drive the antenna fixing frame to rotate by a certain angle in the transverse direction and / or the longitudinal direction according to the detection result. And the polarization direction of the antenna on the antenna fixing frame is kept stable. According to the intelligent control device for stabilizing the antenna polarization direction, the antenna angle can be adjusted in real time, the stability of the antenna polarization direction is ensured, and the wireless communication quality is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of antenna polarization stabilization control, and in particular relates to an intelligent control device and method for stabilizing the polarization direction of an antenna. Background Art

[0002] With the increasing frequency of marine activities and the growing demand for ship wireless communications, a large number of rod antennas are often deployed on ship masts, such as fiberglass antennas for L-band communications. This type of antenna is rigidly connected to the ship mast through a pole, U-shaped buckle, etc. It has the characteristics of low cost, simple installation, and high working efficiency. However, as the ship sways longitudinally and transversely, the polarization direction changes dramatically, which will cause a sharp decline in communication quality, resulting in challenges to the practicality of wireless communication equipment on swaying platforms such as ships, and brings severe challenges to ship safety navigation and communication efficiency. Summary of the invention

[0003] In response to one or more of the above defects or improvement needs in the prior art, the present invention provides an intelligent control device and method for stabilizing the polarization direction of an antenna, which can realize real-time adjustment of the antenna angle, ensure the stability of the polarization direction of the antenna, and thus improve the quality of wireless communication.

[0004] To achieve the above object, the present invention provides an intelligent control device for stabilizing the polarization direction of an antenna, which includes a fixed base and an antenna fixing frame, wherein the antenna fixing frame is connected to the fixed base through a motor servo mechanism, and an antenna is fixedly connected to the antenna fixing frame; The fixed base is fixedly connected to the swing platform, and the plane formed by its lateral swing direction and longitudinal swing direction is consistent with the plane formed by the lateral swing direction and longitudinal swing direction of the swing platform. An inclination sensor is installed on the fixed base, which is used to detect the lateral swing inclination and longitudinal swing inclination of the fixed base in real time, and transmit the detection results to the motor control unit. The motor control unit is used to receive the measurement results of the inclination sensor and control the motor servo mechanism to drive the antenna fixing frame and the antenna to rotate horizontally and / or vertically by a corresponding angle, so that the polarization direction of the antenna remains relatively stable.

[0005] As a further improvement of the present invention, the installation direction of the inclination sensor on the fixed base is parallel to the working plane of the rocking platform to accurately detect the lateral rocking inclination and the longitudinal rocking inclination of the rocking platform.

[0006] As a further improvement of the present invention, the motor servo mechanism includes a first servo motor and a second servo motor which are vertically arranged, the first servo motor controls the lateral swing angle of the antenna fixing frame, and the second servo motor controls the longitudinal swing angle of the antenna fixing frame.

[0007] As a further improvement of the present invention, a power module is also provided on the fixed base, and the power module provides power for the inclination sensor, the motor control unit and the servo mechanism.

[0008] As a further improvement of the present invention, the motor control unit includes a signal input interface and a signal output interface, the signal input interface is connected to the angle sensor, and the signal output interface is connected to the servo mechanism.

[0009] As a further improvement of the present invention, the fixed base is installed on the mast of the rocking platform.

[0010] Another aspect of the present invention further provides an intelligent control method for stabilizing the polarization direction of an antenna, which is implemented using the above-mentioned intelligent control device for stabilizing the polarization of an antenna, and includes the following process: (1) The motor control unit is initialized, the tilt sensor is initialized, and the motor servo mechanism is initialized; (2) The inclination sensor detects the lateral swing inclination and the longitudinal swing inclination of the fixed base in real time; (3) The motor control unit controls the servo mechanism to drive the antenna fixing frame and the antenna to rotate a certain angle horizontally and / or vertically according to the detection result, so as to keep the polarization direction of the antenna stable.

[0011] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0012] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects: (1) The intelligent control device for stabilizing the polarization direction of an antenna of the present invention comprises a fixed base and an antenna fixing frame, wherein the antenna fixing frame is connected to the fixed base through a motor servo mechanism, and the fixed base is installed parallel to the working surface of the swing platform and swings with the swing platform, so that the inclination sensor installed on the fixed base can detect the lateral and longitudinal swing angles of the swing platform, and transmit the detection results to the motor control unit, and the motor control unit controls the motor servo mechanism according to the detection results to drive the antenna fixing frame to rotate a certain angle in the lateral and / or longitudinal direction, so that the polarization direction of the antenna on the antenna fixing frame is kept stable. The intelligent control device for stabilizing the polarization direction of an antenna of the present invention can realize real-time adjustment of the antenna angle, ensure that the polarization direction of the antenna is horizontal, and improve the communication efficiency between the antennas of the swing platform and between the swing platform and the fixed antenna on land.

[0013] (2) The intelligent control device for stabilizing the polarization direction of an antenna of the present invention accurately detects the lateral and longitudinal swing inclination angles of the swing platform by installing an inclination sensor on a fixed base parallel to the working plane of the swing platform.

[0014] (3) The intelligent control device for stabilizing the polarization direction of an antenna of the present invention comprises a motor servo mechanism comprising a first servo motor and a second servo motor arranged vertically, wherein the first servo motor controls the lateral swing angle of the antenna fixing frame, and the second servo motor controls the longitudinal swing angle of the antenna fixing frame, so that the rotation adjustment of the antenna fixing frame in two directions respectively corresponds to the lateral and longitudinal swing inclination angles of the swing platform, which are independent of each other and do not interfere with each other, thereby improving the adjustment accuracy and efficiency.

[0015] (4) The intelligent control method for stabilizing the polarization direction of the antenna of the present invention realizes real-time adjustment of the antenna angle through the above-mentioned intelligent control device for stabilizing the polarization direction of the antenna, ensuring that the antenna is adjusted in time with the tilt of the swing platform, so that the polarization direction of the antenna remains stable, thereby ensuring that the polarization directions of antennas on different swing platforms and the antennas on the swing platform and the shore are consistent, thereby improving the efficiency of wireless communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is a schematic diagram of the installation position of the tilt sensor in an embodiment of the present invention; Figure 2 Schematic diagram of the installation of the motor servo mechanism in the embodiment of the present invention.

[0018] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. antenna fixing bracket; 2. motor servo mechanism; 21. first servo motor; 22. second servo motor; 3. tilt sensor; 4. antenna; 5. swing platform. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] Example: The intelligent control device and method for stabilizing the polarization direction of an antenna provided by the present invention are used for polarization stabilization control of measurement radars and communication equipment in a linear polarization working mode on moving platforms such as ships and aircraft.

[0025] See also Figure 1~Figure 2In a preferred embodiment, the intelligent control device for stabilizing the polarization direction of the antenna includes a fixed base and an antenna fixing bracket.

[0026] Among them, the antenna fixing frame 1 is connected to the fixed base through the motor servo mechanism 2, and the antenna 4 is fixedly connected to the antenna fixing frame 1; the fixed base is fixedly connected to the swing platform 5, and the plane formed by the lateral swing direction and the longitudinal swing direction of the fixed base is consistent with the plane formed by the lateral swing direction and the longitudinal swing direction of the swing platform 5. An inclination sensor 3 is installed on the fixed base, which is used to detect the lateral swing inclination and the longitudinal swing inclination of the fixed base in real time, and transmit the detection results to the motor control unit. The motor control unit is used to receive the measurement results of the inclination sensor 3 and control the motor servo mechanism 2 to drive the antenna fixing frame 1 and the antenna 4 to rotate horizontally and / or vertically by corresponding angles, so that the polarization direction of the antenna 4 remains relatively stable.

[0027] In this preferred embodiment, if the swaying platform 5 does not tilt, the lateral swaying tilt angle and the longitudinal swaying tilt angle values ​​measured by the tilt sensor 3 are both 0°; if the swaying platform tilts left and right, the angle sensor outputs a lateral angle value; if the swaying platform tilts front and back, the tilt sensor outputs a longitudinal angle value. The motor control unit controls the motor servo mechanism 2 to drive the antenna fixing frame 1 to rotate in the opposite direction of the tilt of the swaying platform 5 by the same angle according to the output result of the tilt sensor to offset the swing of the swaying platform, thereby ensuring that the antenna 4 on the swaying platform remains vertical relative to the curved surface of the earth, ensuring that the polarization directions of the antennas on different swaying platforms and the antennas on the swaying platform and the shore base are consistent, thereby improving the efficiency of wireless communication.

[0028] Preferably, if Figure 1 As shown, the installation direction of the inclination sensor 3 on the fixed base is parallel to the working plane of the rocking platform 5 so as to accurately detect the lateral rocking inclination and the longitudinal rocking inclination of the rocking platform 5 .

[0029] Specifically and preferably, the X direction is the left and right 0 degree direction of the inclination sensor, and the Y direction is the front and rear 0 degree direction of the inclination sensor, that is, the reference 0 degree point of the front and rear angle detection of the inclination sensor 3 is installed parallel to the front and rear axis of the swing platform, and the 0 degree point of the left and right angle detection is installed parallel to the left and right axis of the swing platform.

[0030] Exemplarily, the degree of inclination in the X direction measured by the inclination sensor 3 can correspond to the lateral swing inclination of the swing platform 5, and the degree of inclination in the Y direction can correspond to the longitudinal swing inclination of the swing platform 5, or, the degree of inclination in the X direction measured by the inclination sensor 3 can correspond to the longitudinal swing inclination of the swing platform 5, and the degree of inclination in the Y direction can correspond to the lateral swing inclination of the swing platform 5.

[0031] Preferably, if Figure 2 As shown, the motor servo mechanism 2 includes a first servo motor 21 and a second servo motor 22 which are vertically arranged. The first servo motor 21 controls the lateral swing angle of the antenna fixing frame 1 , and the second servo motor 22 controls the longitudinal swing angle of the antenna fixing frame 1 .

[0032] In this preferred embodiment, the rotation plane of the first servo motor 21 corresponds to the transverse inclined plane of the antenna fixing frame 1, and the rotation plane of the second servo motor 22 corresponds to the longitudinal inclined plane of the antenna fixing frame 1. The first servo motor 21 is controlled to rotate at an equal angle in the opposite direction of the transverse inclined direction of the swing platform 5 along its rotation plane, and the second servo motor 22 is controlled to rotate at an equal angle in the opposite direction of the longitudinal inclined direction of the swing platform 5 along its rotation plane, so as to ensure the stability of the polarization direction of the antenna 5.

[0033] Preferably, the fixed base is installed on the mast of the rocking platform 5 , so as to increase the installation height of the antenna 4 .

[0034] Preferably, a power module is also provided on the fixed base, and the power module provides power for the inclination sensor, the motor control unit and the servo mechanism.

[0035] Preferably, the motor control unit comprises a signal input interface and a signal output interface, the signal input interface is connected to the inclination sensor, and the signal output interface is connected to the servo mechanism.

[0036] Exemplarily, the motor control unit includes at least one available signal input interface and at least two available signal output interfaces, the signal input interface receives tilt and swing information from the inclination sensor, and the signal output interface has a motor driving capability and can drive the first servo motor 21 and / or the second servo motor 22 to rotate.

[0037] In actual operation, the present invention also provides an intelligent control method for stabilizing the polarization direction of an antenna, which is implemented by using the above-mentioned intelligent control device for stabilizing the polarization of an antenna, and includes the following process: (1) The motor control unit is initialized, the inclination sensor is initialized, and the servo motor is initialized; (2) The inclination sensor detects the lateral swing inclination and the longitudinal swing inclination of the fixed base in real time; (3) The motor control unit controls the servo mechanism to drive the antenna fixing frame and the antenna to rotate a certain angle horizontally and / or vertically according to the detection result, so as to keep the polarization direction of the antenna stable.

[0038] In this embodiment, the motor control unit initialization includes input interface initialization and output interface initialization, the inclination sensor initialization is that the lateral swing inclination and the longitudinal swing inclination are both reset to zero, and the servo motor initialization is that the rotation angles of the first servo motor 21 and the second servo motor 22 are both at 0° position.

[0039] In step (2), when the inclination sensor is running, if the swing platform does not tilt, the angle values ​​output by the angle sensor in the lateral and longitudinal directions are 0°; if the swing platform tilts to the left, the angle sensor outputs a positive lateral angle value; if the swing platform tilts to the right, the angle sensor outputs a negative lateral angle value; if the swing platform tilts forward, the angle sensor outputs a negative longitudinal angle value; if the swing platform tilts backward, the angle sensor outputs a positive longitudinal angle value.

[0040] Furthermore, in step (3), if the angle information received by the motor control unit is a positive lateral angle value, the first servo motor 21 is controlled to deflect to the right; if the angle information returned by the angle sensor is a negative lateral angle value, the first servo motor 21 is controlled to deflect to the left; if the angle information returned by the angle sensor is a negative longitudinal angle value, the second servo motor 22 is controlled to deflect backward; if the angle information returned by the angle sensor is a positive longitudinal angle value, the second servo motor 22 is controlled to deflect forward.

[0041] Furthermore, the first servo motor 21 and the second servo motor 22 drive the antenna fixing frame to swing in the horizontal and vertical directions, thereby completing intelligent control and offsetting the deterioration of the antenna angle caused by the swinging of a swinging platform such as a ship.

[0042] The intelligent control device for stabilizing the polarization direction of the antenna in the present invention comprises a fixed base and an antenna fixing frame, wherein the antenna fixing frame is connected to the fixed base through a motor servo mechanism, and the fixed base is installed parallel to the working surface of the swing platform and swings with the swing platform, so that the inclination sensor installed on the fixed base can detect the lateral and longitudinal swing angles of the swing platform, and transmit the detection result to the motor control unit, and the motor control unit controls the motor servo mechanism according to the detection result to drive the antenna fixing frame to rotate a certain angle in the lateral and / or longitudinal direction, so that the antenna on the antenna fixing frame maintains a stable polarization direction. The intelligent control device for stabilizing the polarization direction of the antenna in the present invention can realize real-time adjustment of the antenna angle, ensure the horizontal polarization direction of the antenna, and improve the communication efficiency between the antennas of the swing platform and between the swing platform and the fixed antenna on land.

[0043] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent control device for stabilizing the polarization direction of an antenna, characterized in that: It includes a fixed base and an antenna fixing frame, wherein the antenna fixing frame is connected to the fixed base through a motor servo mechanism, and an antenna is fixedly connected to the antenna fixing frame; The fixed base is fixedly connected to the swing platform, and the plane formed by its lateral swing direction and longitudinal swing direction is consistent with the plane formed by the lateral swing direction and longitudinal swing direction of the swing platform. An inclination sensor is installed on the fixed base, which is used to detect the lateral swing inclination and longitudinal swing inclination of the fixed base in real time, and transmit the detection results to the motor control unit. The motor control unit is used to receive the measurement results of the inclination sensor and control the motor servo mechanism to drive the antenna fixing frame and the antenna to rotate horizontally and / or vertically by a corresponding angle, so that the polarization direction of the antenna remains relatively stable.

2. The intelligent control device for antenna polarization stabilization according to claim 1, characterized in that: The installation direction of the inclination sensor on the fixed base is parallel to the working plane of the rocking platform, so as to accurately detect the lateral rocking inclination and the longitudinal rocking inclination of the rocking platform.

3. The intelligent control device for antenna polarization stabilization according to claim 1, characterized in that: The motor servo mechanism comprises a first servo motor and a second servo motor which are vertically arranged, wherein the first servo motor controls the lateral swing angle of the antenna fixing frame, and the second servo motor controls the longitudinal swing angle of the antenna fixing frame.

4. The intelligent control device for antenna polarization stabilization according to claim 1, characterized in that: The fixed base is also provided with a power module, and the power module provides power for the inclination sensor, the motor control unit and the servo mechanism.

5. The intelligent control device for antenna polarization stabilization according to claim 1, characterized in that: The motor control unit comprises a signal input interface and a signal output interface, wherein the signal input interface is connected to the angle sensor, and the signal output interface is connected to the servo mechanism.

6. The intelligent control device for antenna polarization stabilization according to claim 1, characterized in that: The fixed base is mounted on the mast of the rocking platform.

7. An intelligent control method for stabilizing the polarization direction of an antenna, which is implemented by using the intelligent control device for stabilizing the polarization of an antenna according to any one of claims 1 to 6, characterized in that: The process includes the following: (1) The motor control unit is initialized, the tilt sensor is initialized, and the motor servo mechanism is initialized; (2) The inclination sensor detects the lateral swing inclination and the longitudinal swing inclination of the fixed base in real time; (3) The motor control unit controls the servo mechanism to drive the antenna fixing frame and the antenna to rotate a certain angle horizontally and / or vertically according to the detection result, so as to keep the polarization direction of the antenna stable.

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