Large vehicle-mounted folding antenna feeder device and control system thereof

Abstract

The application discloses a large vehicle-mounted folding antenna feeder device and a control system thereof. The large vehicle-mounted folding antenna feeder device comprises a shelter unit, an antenna standing and lying unit, a folding antenna feeder unit which is pulled out from the shelter unit or retracted by the antenna standing and lying unit, a two-dimensional rotary table unit for controlling the folding antenna feeder unit to pitch and track, and a control cabinet for controlling the antenna standing and lying unit, the two-dimensional rotary table unit and the folding antenna feeder unit. The bottom of the antenna standing and lying unit is fixedly installed on an inner mounting surface of the shelter unit, the two-dimensional rotary table unit is fixedly installed between the antenna standing and lying unit and the folding antenna feeder unit, and the control cabinet is fixedly installed in the shelter unit. The large vehicle-mounted folding antenna feeder device has good maneuverability, high concealment and high tracking precision. The control system adopts distributed control to reduce the communication interfaces and the number of cables between devices, and greatly reduces the complexity of secondary development control of users.

Description

[Technical Field]

[0001] This invention belongs to the field of low-orbit satellite tracking technology, and in particular relates to a large vehicle-mounted foldable antenna feeder device and its control system. [Background Technology]

[0002] Because of their large diameter, the antenna feeder units of low-Earth orbit (LEO) satellite tracking devices cannot be mounted on vehicles. Therefore, LEO satellite tracking devices are generally fixed in a fixed position on the ground, resulting in poor mobility and concealment, which fails to meet engineering requirements. [Summary of the Invention]

[0003] Therefore, it is necessary to provide a large-scale vehicle-mounted folding antenna feeder device and its control system that is highly mobile and well-concealed, addressing the aforementioned technical problems.

[0004] The present invention adopts the following technical solution:

[0005] In one aspect, a large vehicle-mounted foldable antenna feeder device is provided, including a cabin unit, an antenna raising and lowering unit, a foldable antenna feeder unit that extends or retracts from the cabin unit by being pulled by the antenna raising and lowering unit, a two-dimensional turntable unit for controlling the foldable antenna feeder unit to perform pitch tracking, and a control cabinet for controlling the antenna raising and lowering unit, the two-dimensional turntable unit and the foldable antenna feeder unit.

[0006] The bottom of the antenna horizontal unit is fixedly installed on the inner mounting surface of the container unit, the two-dimensional turntable unit is fixedly installed between the antenna horizontal unit and the foldable antenna feed unit, and the control cabinet is fixedly installed inside the container unit.

[0007] In one embodiment, the control cabinet includes a tracking receiver, a servo control unit, a power supply and a power distribution unit, wherein the power distribution unit is electrically connected to the power supply, the power supply is electrically connected to the servo control unit, and the servo control unit is electrically connected to the tracking receiver.

[0008] The antenna horizontal unit, the two-dimensional turntable unit, and the foldable antenna feed unit are all electrically connected to the servo control unit.

[0009] In one embodiment, the modular unit includes a modular unit body, a left opening and closing motor, a left electric cylinder support, a left hinge support, a left opening and closing top cover, a left connecting rod, a right opening and closing top cover, a right hinge support, a right connecting rod, a right electric cylinder support, and a right opening and closing motor;

[0010] The left electric cylinder support is fixedly installed on the left inner wall of the main body of the container. The left opening and closing motor is fixedly installed on the left electric cylinder support. One end of the left connecting rod is hinged to the left opening and closing motor, and the other end of the left connecting rod is hinged to the left hinge seat. The left hinge seat is fixedly installed on the left opening and closing top cover. The left opening and closing top cover is hingedly installed on the left side of the main body of the container. The right electric cylinder support is fixedly installed on the right inner wall of the main body of the container. The right opening and closing motor is fixedly installed on the right electric cylinder support. One end of the right connecting rod is hinged to the right opening and closing motor, and the other end of the right connecting rod is hinged to the right hinge seat. The right hinge seat is fixedly installed on the right opening and closing top cover. The right opening and closing top cover is hingedly installed on the right side of the main body of the container.

[0011] In one embodiment, the antenna raising and lowering unit includes a raising and lowering frame, a diagonal arm, a gas spring, a gas spring support, a limiting block, a raising and lowering motor, a connecting sleeve, a raising and lowering reducer, a first bearing, a first rotating shaft, an angular contact bearing assembly, an electric push rod, and a push rod bracket.

[0012] The horizontal lifting motor and the horizontal lifting reducer are fixedly installed. The horizontal lifting reducer is fixedly installed on the horizontal lifting frame. The connecting sleeve is assembled to the output shaft of the horizontal lifting reducer via a spline. The left end of the connecting sleeve is installed in the left mounting hole of the horizontal lifting frame via a first bearing. The first rotating shaft is installed in the right mounting hole of the horizontal lifting frame via an angular contact bearing assembly. The left side of the inclined support arm is fixedly connected to the connecting sleeve, and the right side of the inclined support arm is fixedly connected to the first rotating shaft. The upper end of the gas spring is hinged to the inclined support arm, and the lower end of the gas spring is hinged to the gas spring support. The gas spring support is fixedly connected to the container unit. The push rod bracket is fixedly connected to the horizontal lifting frame. The electric push rod is fixedly installed on the push rod bracket. The limit block is assembled on the electric push rod. The inclined support arm is provided with two limit grooves, and the axes of the two limit grooves have an included angle.

[0013] In one embodiment, the two-dimensional turntable unit includes an azimuth base, an azimuth encoder, a geared ball slewing bearing, a pitch box, a left counterweight, a left pitch support arm, a pitch encoder, a left bearing assembly, a left driven gear, a left rotating shaft, an antenna mounting plate, a right driven gear, a right rotating shaft, a right pitch support arm, a right bearing assembly, a cable outlet, a right counterweight, a first pitch motor, a first pitch reducer, a first pitch drive gear, a first azimuth reducer, a first azimuth motor, a second pitch motor, a second pitch reducer, a second pitch drive gear, a second azimuth reducer, a second azimuth motor, a first azimuth drive gear, and a second azimuth drive gear.

[0014] A gear ball slewing bearing is fixedly installed on the azimuth base. The pitch box is installed on the gear ball slewing bearing. The first azimuth motor is fixedly installed on the first azimuth reducer. The first azimuth reducer is fixedly installed in the rear mounting hole on the inner bottom surface of the pitch box. The first azimuth drive gear is fixedly installed on the output shaft of the first azimuth reducer and meshes with the gear ball slewing bearing. The second azimuth motor is fixedly installed on the second azimuth reducer. The second azimuth reducer is fixedly installed in the front mounting hole on the inner bottom surface of the pitch box. The second azimuth drive gear is fixedly installed on the output shaft of the second azimuth reducer and meshes with the gear ball slewing bearing. The left rotating shaft is fixedly installed in the mounting hole on the left side of the pitch box. The left pitch support arm is installed on the left rotating shaft via a left bearing assembly. The left driven gear is fixedly installed on the left pitch support arm. The left counterweight is fixedly installed on the left pitch support arm. On the bottom surface of the elevation arm, the first elevation motor is fixedly installed on the first elevation reducer, which is fixedly installed on the inner left side of the elevation box. The first elevation drive gear is fixedly installed on the output shaft of the first elevation reducer, and the first elevation drive gear meshes with the left driven gear. The right rotating shaft is fixedly installed in the mounting hole on the right side of the elevation box. The right elevation arm is installed on the right rotating shaft through the right bearing assembly. The right driven gear is fixedly installed on the right elevation arm. The right counterweight is fixedly installed on the bottom surface of the right elevation arm. The second elevation motor is fixedly installed on the second elevation reducer, which is fixedly installed on the inner right side of the elevation box. The second elevation drive gear is fixedly installed on the output shaft of the second elevation reducer, and the second elevation drive gear meshes with the right driven gear. The two ends of the antenna mounting plate are respectively assembled with the top surfaces of the left and right elevation arms.

[0015] In one embodiment, the foldable antenna feeder unit includes a central main reflector subunit, a left folding motor, a first rotating bracket, a first locking cylinder, a first pin, a left main reflector subunit, a first hinge, a main reflector mounting bracket, a second hinge, a right main reflector subunit, a second pin, a second locking cylinder, a right folding motor, a second rotating bracket, and a secondary reflector subunit.

[0016] The middle main reflector subunit and the left folding motor are both fixedly mounted on the main reflector mounting bracket. The first rotating bracket is fixedly connected to the left main reflector subunit and is mounted on the output shaft of the left folding motor. The left main reflector subunit is assembled on the main reflector mounting bracket through the first hinge seat. The first pin is fixedly mounted on the left main reflector subunit. The first locking electric cylinder and the second locking electric cylinder are both fixedly mounted on the main reflector mounting bracket. The right folding motor is fixedly mounted on the main reflector mounting bracket. The second rotating bracket is fixedly connected to the right main reflector subunit and is mounted on the output shaft of the right folding motor. The right main reflector subunit is mounted on the main reflector mounting bracket through the second hinge seat. The second pin is fixedly mounted on the right main reflector subunit. The middle main reflector subunit is provided with two rectangular slots. The sub-reflector subunit (415) is fixedly mounted on the main reflector mounting bracket (408). The sub-reflector subunit (415) and the middle main reflector subunit (401) are located on both sides of the main reflector mounting bracket (408).

[0017] Secondly, a control system for a large vehicle-mounted foldable antenna feeder device is provided for controlling the aforementioned large vehicle-mounted foldable antenna feeder device, including a folding control unit, a two-dimensional turntable control unit, and a lifting and lowering control unit, wherein the folding control unit, the two-dimensional turntable control unit, and the lifting and lowering control unit are all electrically connected to a power distribution unit.

[0018] The folding control unit is used to control the unfolding or retraction of the folding antenna feeder unit;

[0019] The two-dimensional turntable control unit is used to control the rotation of the two-dimensional turntable unit to drive the foldable antenna feeder unit to perform pitch tracking;

[0020] The retractable control unit is used to control the opening and closing of the left and right opening and closing top covers of the cabin unit and to control the extension or retraction of the antenna retractable unit from the cabin unit.

[0021] In one embodiment, the folding control unit includes a left folding motor driver, a left antenna unfolding state detection switch, a right antenna folding state detection switch, a single-pulse feed, a folding servo controller, a right folding motor driver, a feed network subunit, a left antenna folding state detection switch, and a right antenna unfolding state detection switch.

[0022] The left antenna deployment status detection switch, the right antenna folding status detection switch, the left antenna folding status detection switch, and the right antenna deployment status detection switch are all electrically connected to the folding servo controller. The feed network subunit is electrically connected to the tracking receiver. The single-pulse feed is electrically connected to the feed network subunit. The folding servo controller is electrically connected to the first locking cylinder, the second locking cylinder, the left folding motor driver, the single-pulse feed, and the right folding motor driver, respectively. The left folding motor driver is electrically connected to the left folding motor, and the right folding motor driver is electrically connected to the right folding motor.

[0023] The two-dimensional turntable control unit includes a first pitch motor driver, a second pitch motor driver, a pitch servo controller, a pitch limit switch, a first azimuth motor driver, a second azimuth motor driver, an azimuth servo controller, and an azimuth limit switch.

[0024] The first pitch motor driver, the second pitch motor driver, and the pitch limit switch are all electrically connected to the pitch servo controller. The first pitch motor driver is electrically connected to the first pitch motor, and the second pitch motor driver is electrically connected to the second pitch motor. The pitch servo controller is electrically connected to the folding servo controller and the azimuth servo controller respectively. The pitch servo controller is electrically connected to the pitch encoder. The first azimuth motor driver, the second azimuth motor driver, and the azimuth limit switch are all electrically connected to the azimuth servo controller. The first azimuth motor driver is electrically connected to the first azimuth motor, and the second azimuth motor driver is electrically connected to the second azimuth motor. The azimuth servo controller is electrically connected to the servo control unit and the azimuth encoder.

[0025] The lying-up control unit includes a lying-up motor driver, a lying-up locking status detection switch, a lying-up position status detection switch, a left cabin top opening / closing status sensor, a right cabin top opening / closing status sensor, a lying-up servo controller, a right opening / closing motor driver, a left opening / closing motor driver, and an audible and visual alarm subunit.

[0026] The stand-up / lie-up locking status detection switch, the stand-up / lie-up position status detection switch, the left cabin top opening / closing status sensor, the right cabin top opening / closing status sensor, and the audible and visual alarm subunit are all electrically connected to the stand-up / lie-up servo controller. The stand-up / lie-up servo controller is electrically connected to the electric push rod, the stand-up / lie-up motor driver, the right opening / closing motor driver, and the left opening / closing motor driver, respectively. The right opening / closing motor driver is electrically connected to the right opening / closing motor, and the left opening / closing motor driver is electrically connected to the left opening / closing motor. The stand-up / lie-up servo controller is electrically connected to the orientation servo controller.

[0027] In one embodiment, the servo control unit, pitch servo controller, and yaw servo controller are all electrically connected to the azimuth servo controller via a serial RS485 bus, the folding servo controller is electrically connected to the pitch servo controller via a serial RS485 bus, and the servo control unit is electrically connected to the tracking receiver via a serial RS485 bus.

[0028] This invention discloses a large-scale vehicle-mounted foldable antenna feeder device and its control system. The large-scale vehicle-mounted foldable antenna feeder device includes a cabin unit, an antenna retracting unit, a foldable antenna feeder unit that extends or retracts from the cabin unit by being pulled by the antenna retracting unit, a two-dimensional turntable unit for controlling the foldable antenna feeder unit to perform pitch tracking, and a control cabinet for controlling the antenna retracting unit, the two-dimensional turntable unit, and the foldable antenna feeder unit. The bottom of the antenna retracting unit is fixedly mounted on the inner mounting surface of the cabin unit, the two-dimensional turntable unit is fixedly mounted between the antenna retracting unit and the foldable antenna feeder unit, and the control cabinet is fixedly mounted inside the cabin unit. In this invention, the foldable antenna feeder unit can be extended or retracted from the cabin unit through the antenna retracting unit. It extends when in use and retracts when not in use. When retracted, only the cabin unit is exposed, providing high concealment and enabling vehicle-mounted operation, thus exhibiting high mobility. [Attached Image Description]

[0029] Figure 1 This is a front view of the structure of the large vehicle-mounted foldable antenna feeder device in an embodiment of the present invention;

[0030] Figure 2 This is a top view of the structure of the large vehicle-mounted folding antenna feeder device in an embodiment of the present invention;

[0031] Figure 3 This is a left view of the structure of the large vehicle-mounted foldable antenna feeder device in an embodiment of the present invention;

[0032] Figure 4 This is a left view of the structure of the modular cabin unit in an embodiment of the present invention;

[0033] Figure 5 This is a front view of the antenna horizontal / vertical unit in an embodiment of the present invention;

[0034] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of surface AA;

[0035] Figure 7 This is a front view of the structure of the two-dimensional turntable unit in an embodiment of the present invention;

[0036] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure of the BB surface;

[0037] Figure 9 for Figure 7 A schematic diagram of the cross-sectional structure of the CC plane;

[0038] Figure 10 This is a front view of the structure of the foldable antenna feeder unit in the unfolded state in an embodiment of the present invention;

[0039] Figure 11This is a left view of the structure of the foldable antenna feeder unit in the unfolded state in an embodiment of the present invention;

[0040] Figure 12 This is a front view of the structure of the foldable antenna feeder unit in the stored state in an embodiment of the present invention;

[0041] Figure 13 This is a left view of the structure of the foldable antenna feeder unit in the stored state in an embodiment of the present invention;

[0042] Figure 14 This is a schematic diagram of the control system of a large vehicle-mounted foldable antenna feeder device in an embodiment of the present invention.

[0043] Explanation of reference numerals in the attached diagram: 1. Container unit; 2. Antenna raising / lowering unit; 3. Two-dimensional turntable unit; 4. Foldable antenna feeder unit; 5. Tracking receiver; 6. Servo control unit; 7. Power supply; 8. Power distribution unit; 9. Foldable control unit; 10. Two-dimensional turntable control unit; 11. Raising / lowering control unit; 12. Control cabinet;

[0044] 101. Container main body; 102. Left opening / closing motor; 103. Left electric cylinder support; 104. Left hinge seat; 105. Left opening / closing top cover; 106. Left connecting rod; 107. Right opening / closing top cover; 108. Right hinge seat; 109. Right connecting rod; 110. Right electric cylinder support; 111. Right opening / closing motor;

[0045] 201. Horizontal movement frame; 202. Inclined support arm; 203. Gas spring; 204. Gas spring support; 205. Limiting block; 206. Horizontal movement motor; 207. Connecting sleeve; 208. Horizontal movement reducer; 209. First bearing; 210. First rotating shaft; 211. Angular contact bearing assembly; 212. Electric push rod; 213. Push rod bracket; 214. Limiting groove;

[0046] 301. Azimuth base; 302. Azimuth encoder; 303. Gear ball slewing bearing; 304. Pitch box; 305. Left counterweight; 306. Left pitch support arm; 307. Pitch encoder; 308. Left bearing assembly; 309. Left driven gear; 310. Left rotating shaft; 311. Antenna mounting plate; 312. Right driven gear; 313. Right rotating shaft; 314. Right pitch support arm; 315. Right bearing assembly; 316. Cable exit tube; 17. Right counterweight; 318. First pitch motor; 319. First pitch reducer; 320. First pitch drive gear; 321. First azimuth reducer; 322. First azimuth motor; 323. Second pitch motor; 324. Second pitch reducer; 325. Second pitch drive gear; 326. Second azimuth reducer; 327. Second azimuth motor; 328. First azimuth drive gear; 329. Second azimuth drive gear;

[0047] 401. Middle main reflector subunit; 402. Left folding motor; 403. First rotating bracket; 404. First locking cylinder; 405. First pin; 406. Left main reflector subunit; 407. First hinge; 408. Main reflector mounting bracket; 409. Second hinge; 410. Right main reflector subunit; 411. Second pin; 412. Second locking cylinder; 413. Right folding motor; 414. Second rotating bracket; 415. Sub-reflector subunit;

[0048] 901. Left folding motor driver; 902. Left antenna unfolding status detection switch; 903. Right antenna folding status detection switch; 904. Single pulse feed; 905. Folding servo controller; 906. Right folding motor driver; 907. Feed network subunit; 908. Left antenna folding status detection switch; 909. Right antenna unfolding status detection switch;

[0049] 1001, First pitch motor driver; 1002, Second pitch motor driver; 1003, Pitch servo controller; 1004, Pitch limit switch; 1005, First azimuth motor driver; 1006, Second azimuth motor driver; 1007, Azimuth servo controller; 1008, Azimuth limit switch;

[0050] 1101. Horizontal / Lying-Up Motor Driver; 1102. Horizontal / Lying-Up Locking Status Detection Switch; 1103. Horizontal / Lying-Up Position Status Detection Switch; 1104. Left Cabin Top Opening / Closing Status Sensor; 1105. Right Cabin Top Opening / Closing Status Sensor; 1106. Horizontal / Lying-Up Servo Controller; 1107. Right Opening / Closing Motor Driver; 1108. Left Opening / Closing Motor Driver; 1109. Audible and Visual Alarm Subunit.

Detailed Implementation Methods

[0051] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] It should be noted that in the description of this invention, "upper," "lower," "top," "bottom," and orientation or positional relationship are based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0053] In one embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, the large vehicle-mounted foldable antenna feeder device includes a container unit 1, an antenna raising / lowering unit 2, a foldable antenna feeder unit 4 that extends or retracts from the container unit 1 by being pulled by the antenna raising / lowering unit 2, a two-dimensional turntable unit 3 for controlling the foldable antenna feeder unit 4 to perform pitch tracking, and a control cabinet 12 for controlling the antenna raising / lowering unit 2, the two-dimensional turntable unit 3, and the foldable antenna feeder unit 4. The bottom of the antenna raising / lowering unit 2 is fixedly installed on the inner mounting surface of the container unit 1, the two-dimensional turntable unit 3 is fixedly installed between the antenna raising / lowering unit 2 and the foldable antenna feeder unit 4, and the control cabinet 12 is fixedly installed inside the container unit 1.

[0054] In this embodiment, the foldable antenna feed unit 4 can extend from or retract into the container unit 1 under the traction of the antenna horizontal unit 2. It extends from the container unit 1 when in use and retracts into the container unit 1 when not in use. The container unit 1 can be vehicle-mounted, improving the mobility of the antenna feed device. Furthermore, when the foldable antenna feed unit 4 is retracted into the container unit 1, there are no obvious satellite receiving function characteristics, improving the concealment of the antenna feed device.

[0055] In one embodiment, the control cabinet 12 includes a tracking receiver 5, a servo control unit 6, a power supply 7, and a power distribution unit 8. The power distribution unit 8 is electrically connected to the power supply 7, the power supply 7 is electrically connected to the servo control unit 6, the servo control unit 6 is electrically connected to the tracking receiver 5, and the antenna horizontal / vertical unit 2, the two-dimensional turntable unit 3, and the foldable antenna feed unit 4 are all electrically connected to the servo control unit 6.

[0056] Specifically, the servo control unit 6 is used to control the antenna horizontal and vertical unit 2, the two-dimensional turntable unit 3, and the folding antenna feed unit 4.

[0057] It should be noted that the tracking receiver 5, servo control unit 6, power supply 7 and power distribution unit 8 are all integrated and installed inside a control cabinet 12, which simplifies the structure of the antenna feeder device, makes assembly simple, reduces the error rate, and makes installation and maintenance very convenient and reliable.

[0058] like Figure 4 As shown, in one embodiment, the container unit 1 includes a container body 101, a left opening and closing motor 102, a left electric cylinder support 103, a left hinge seat 104, a left opening and closing top cover 105, a left connecting rod 106, a right opening and closing top cover 107, a right hinge seat 108, a right connecting rod 109, a right electric cylinder support 110, and a right opening and closing motor 111.

[0059] The left electric cylinder support 103 is fixedly installed on the left inner wall of the main body 101 of the shelter. The left opening and closing motor 102 is fixedly installed on the left electric cylinder support 103. One end of the left connecting rod 106 is hinged to the left opening and closing motor 102, and the other end of the left connecting rod 106 is hinged to the left hinge seat 104. The left hinge seat 104 is fixedly installed on the left opening and closing top cover 105. The left opening and closing top cover 105 is hinged to the left side of the main body 101 of the shelter. The right electric cylinder support 110 is fixedly installed on the right inner wall of the main body 101 of the shelter. The right opening and closing motor 111 is fixedly installed on the right electric cylinder support 110. One end of the right connecting rod 109 is hinged to the right opening and closing motor 111, and the other end of the right connecting rod 109 is hinged to the right hinge seat 108. The right hinge seat 108 is fixedly installed on the right opening and closing top cover 107. The right opening and closing top cover 107 is hinged to the right side of the main body 101 of the shelter.

[0060] In this embodiment, when the left opening and closing motor 102 is working, it can drive the left connecting rod 106 to rotate, and the rotation of the left connecting rod 106 will in turn drive the left opening and closing top cover 105 to open. The opening process of the right opening and closing top cover 107 is the same as the opening process of the left opening and closing top cover 105, and will not be described again here.

[0061] like Figure 5 and Figure 6 As shown, in one embodiment, the antenna raising / lowering unit 2 includes a raising / lowering frame 201, a diagonal support arm 202, a gas spring 203, a gas spring support 204, a limiting block 205, a raising / lowering motor 206, a connecting sleeve 207, a raising / lowering reducer 208, a first bearing 209, a first rotating shaft 210, an angular contact bearing assembly 211, an electric push rod 212, and a push rod bracket 213.

[0062] Specifically, the function of the gas spring 203 is to assist in supporting the rotation of the inclined support arm 202.

[0063] The horizontal lifting motor 206 and the horizontal lifting reducer 208 are fixedly installed. The horizontal lifting reducer 208 is fixedly installed on the horizontal lifting frame 201. The connecting sleeve 207 is splined to the output shaft of the horizontal lifting reducer 208. The left end of the connecting sleeve 207 is installed in the left mounting hole of the horizontal lifting frame 201 through the first bearing 209. The first rotating shaft 210 is installed in the right mounting hole of the horizontal lifting frame 201 through the angular contact bearing assembly 211. The left side of the inclined support arm 202 is fixedly connected to the connecting sleeve 207. The right side is fixedly connected to the first rotating shaft 210. The upper end of the gas spring 203 is hinged to the inclined support arm 202, and the lower end of the gas spring 203 is hinged to the gas spring support 204. The gas spring support 204 is fixedly connected to the container unit 1. The push rod bracket 213 is fixedly connected to the horizontal lifting frame 201. The electric push rod 212 is fixedly installed on the push rod bracket 213. The limiting block 205 is assembled on the electric push rod 212. The inclined support arm 202 is provided with two limiting grooves 214, and the axes of the two limiting grooves 214 have an included angle.

[0064] In this embodiment, the included angle between the axes of the two limiting grooves 214 is specifically 90°. The function of the limiting block 205 is to insert into the limiting groove 214 to fix the inclined support arm 202.

[0065] like Figure 7 , Figure 8 and Figure 9 As shown, in one embodiment, the two-dimensional turntable unit 3 includes an azimuth base 301, an azimuth encoder 302, a gear ball slewing bearing 303, a pitch box 304, a left counterweight 305, a left pitch support arm 306, a pitch encoder 307, a left bearing assembly 308, a left driven gear 309, a left rotating shaft 310, an antenna mounting plate 311, a right driven gear 312, a right rotating shaft 313, a right pitch support arm 314, a right bearing assembly 315, a cable outlet 316, a right counterweight 317, a first pitch motor 318, a first pitch reducer 319, a first pitch drive gear 320, a first azimuth reducer 321, a first azimuth motor 322, a second pitch motor 323, a second pitch reducer 324, a second pitch drive gear 325, a second azimuth reducer 326, a second azimuth motor 327, a first azimuth drive gear 328, and a second azimuth drive gear 329.

[0066] In this embodiment, the counterweight is used to make the rotation of the two-dimensional turntable unit 3 more stable, and the encoder is used for positioning.

[0067] A gear ball slewing bearing 303 is fixedly mounted on an azimuth base 301. A pitch box 304 is mounted on the gear ball slewing bearing 303. A first azimuth motor 322 is fixedly mounted on a first azimuth reducer 321. The first azimuth reducer 321 is fixedly mounted in a rear mounting hole on the inner bottom surface of the pitch box 304. A first azimuth drive gear 328 is fixedly mounted on the output shaft of the first azimuth reducer 321 and meshes with the gear ball slewing bearing 303. A second azimuth motor 327 is fixedly mounted on a second azimuth reducer 326. The second-position reducer 326 is fixedly installed in the front mounting hole on the inner bottom surface of the pitch box 304. The second-position drive gear 329 is fixedly installed on the output shaft of the second-position reducer 326 and meshes with the gear ball slewing bearing 303. The left rotating shaft 310 is fixedly installed in the mounting hole on the left side of the pitch box 304. The left pitch support arm 306 is installed on the left rotating shaft 310 through the left bearing assembly 308. The left driven gear 309 is fixedly installed on the left pitch support arm 306. The left counterweight 305 is fixedly installed on the left pitch support arm 306. On the bottom surface of arm 306, the first pitch motor 318 is fixedly mounted on the first pitch reducer 319, which is fixedly mounted on the inner left side of the pitch housing 304. The first pitch drive gear 320 is fixedly mounted on the output shaft of the first pitch reducer 319, and meshes with the left driven gear 309. The right rotating shaft 313 is fixedly mounted in the mounting hole on the right side of the pitch housing 304. The right pitch support arm 314 is mounted on the right rotating shaft 313 via the right bearing assembly 315. The right driven gear 312 is fixedly mounted on... The right pitch support arm 314 and the right counterweight 317 are fixedly installed on the bottom surface of the right pitch support arm 314. The second pitch motor 323 is fixedly installed on the second pitch reducer 324. The second pitch reducer 324 is fixedly installed on the right side of the inner side of the pitch box 304. The second pitch drive gear 325 is fixedly installed on the output shaft of the second pitch reducer 324. The second pitch drive gear 325 meshes with the right driven gear 312. The two ends of the antenna mounting plate 311 are respectively assembled with the top surface of the left pitch support arm 306 and the top surface of the right pitch support arm 314.

[0068] It should be noted that the azimuth and pitch of the two-dimensional turntable unit 3 in this embodiment are both backlash-eliminating using dual motors and equipped with encoders, which greatly improves its tracking accuracy. It is simple and reliable to operate, has good accuracy, low noise, and no zero drift occurs.

[0069] In addition, in this embodiment, the azimuth encoder 302, the azimuth motor reducer assembly, and the pitch motor reducer assembly are all integrated into the two-dimensional turntable unit 3, which can further simplify the structure and reduce the error rate.

[0070] like Figure 10 , Figure 11 , Figure 12and Figure 13 As shown, in one embodiment, the foldable antenna feeder unit 4 includes a middle main reflector subunit 401, a left folding motor 402, a first rotating bracket 403, a first locking cylinder 404, a first pin 405, a left main reflector subunit 406, a first hinge 407, a main reflector mounting bracket 408, a second hinge 409, a right main reflector subunit 410, a second pin 411, a second locking cylinder 412, a right folding motor 413, a second rotating bracket 414, and a secondary reflector subunit.

[0071] The middle main reflector subunit 401 and the left folding motor 402 are both fixedly mounted on the main reflector mounting bracket 408. The first rotating bracket 403 is fixedly connected to the left main reflector subunit 406 and is mounted on the output shaft of the left folding motor 402. The left main reflector subunit 406 is assembled to the main reflector mounting bracket 408 via the first hinge 407. The first pin 405 is fixedly mounted on the left main reflector subunit 406. The first locking electric cylinder 404 and the second locking electric cylinder 412 are both fixedly mounted on the main reflector mounting bracket 408. The right folding motor 413 is fixedly mounted on the main reflector mounting bracket 408. The bracket 408 and the second rotating bracket 414 are fixedly connected to the right main reflector subunit 410. The second rotating bracket 414 is installed on the output shaft of the right folding motor 413. The right main reflector subunit 410 is installed on the main reflector mounting bracket 408 through the second hinge 409. The second pin 411 is fixedly installed on the right main reflector subunit 410. The middle main reflector subunit 401 is provided with two rectangular slots. The sub-reflector subunit 415 is fixedly installed on the main reflector mounting bracket 408. The sub-reflector subunit 415 and the middle main reflector subunit 401 are located on both sides of the main reflector mounting bracket 408.

[0072] The first locking electric cylinder 404 and the second locking electric cylinder 412 enable precise speed control, and the reflective subunit is used to radiate and receive radio waves.

[0073] Existing antenna servo control systems for controlling antenna servo devices are complex and have poor scalability. Based on the same inventive concept, this invention also provides a control system for a large vehicle-mounted foldable antenna servo device, used to control the large vehicle-mounted foldable antenna servo device of any of the above embodiments, thereby improving the scalability of the antenna servo control system.

[0074] like Figure 14As shown, in one embodiment, the control system of the large vehicle-mounted foldable antenna feeder device includes a folding control unit 9, a two-dimensional turntable control unit 10, and a horizontal / vertical control unit 11. All three are electrically connected to the power distribution unit 8. The folding control unit 9 controls the unfolding or retraction of the foldable antenna feeder unit 4. The two-dimensional turntable control unit 10 controls the rotation of the two-dimensional turntable unit 3 to drive the foldable antenna feeder unit 4 for pitch tracking. The horizontal / vertical control unit 11 controls the opening or closing of the left opening / closing top cover 105 and the right opening / closing top cover 107 of the cabin unit 1 and controls the extension or retraction of the antenna horizontal / vertical unit 2 from the cabin unit 1.

[0075] In one alternative embodiment, the folding control unit 9 includes a left folding motor driver 901, a left antenna unfolded state detection switch 902, a right antenna folded state detection switch 903, a single-pulse feed 904, a folding servo controller 905, a right folding motor 413 driver, a feed network subunit 907, a left antenna folded state detection switch 908, and a right antenna unfolded state detection switch 909.

[0076] The left antenna deployment status detection switch 902, the right antenna folding status detection switch 903, the left antenna folding status detection switch 908, and the right antenna deployment status detection switch 909 are all electrically connected to the folding servo controller 905. The feed network subunit 907 is electrically connected to the tracking receiver 5. The single-pulse feed 904 is electrically connected to the feed network subunit 907. The folding servo controller 905 is electrically connected to the first locking cylinder 404, the second locking cylinder 412, the left folding motor driver 901, the single-pulse feed 904, and the right folding motor 413 driver, respectively. The left folding motor driver 901 is electrically connected to the left folding motor 402, and the right folding motor 413 driver is electrically connected to the right folding motor 413.

[0077] The two-dimensional turntable control unit 10 includes a first pitch motor driver 1001, a second pitch motor driver 1002, a pitch servo controller 1003, a pitch limit switch 1004, a first azimuth motor driver 1005, a second azimuth motor driver 1006, an azimuth servo controller 1007, and an azimuth limit switch 1008.

[0078] The first pitch motor driver 1001, the second pitch motor driver 1002, and the pitch limit switch 1004 are all electrically connected to the pitch servo controller 1003. The first pitch motor driver 1001 is electrically connected to the first pitch motor 318, and the second pitch motor driver 1002 is electrically connected to the second pitch motor 323. The pitch servo controller 1003 is electrically connected to the folding servo controller 905 and the azimuth servo controller 1007, respectively. The pitch servo controller 1003 is electrically connected to the pitch encoder 307. The first azimuth motor driver 1005, the second azimuth motor driver 1006, and the azimuth limit switch 1008 are all electrically connected to the azimuth servo controller 1007. The first azimuth motor driver 1005 is electrically connected to the first azimuth motor 322, and the second azimuth motor driver 1006 is electrically connected to the second azimuth motor 327. The azimuth servo controller 1007 is electrically connected to the servo control unit 6 and the azimuth encoder 302.

[0079] The lounging control unit 11 includes a lounging motor driver 1101, a lounging lock status detection switch 1102, a lounging position status detection switch 1103, a left cabin top opening / closing status sensor 1104, a right cabin top opening / closing status sensor 1105, a lounging servo controller 1106, a right opening / closing motor driver 1107, a left opening / closing motor driver 1108, and an audible and visual alarm subunit 1109.

[0080] The stand-up / lie-down locking status detection switch 1102, the stand-up / lie-down position status detection switch 1103, the left cabin top opening / closing status sensor 1104, the right cabin top opening / closing status sensor 1105, and the audible and visual alarm subunit 1109 are all electrically connected to the stand-up / lie-down servo controller 1106. The stand-up / lie-down servo controller 1106 is electrically connected to the electric push rod 212, the stand-up / lie-down motor driver 1101, the right opening / closing motor driver 1107, and the left opening / closing motor driver 1108, respectively. The right opening / closing motor driver 1107 is electrically connected to the right opening / closing motor 111, and the left opening / closing motor driver 1108 is electrically connected to the left opening / closing motor 102. The stand-up / lie-down servo controller 1106 is electrically connected to the orientation servo controller 1007.

[0081] In a preferred embodiment, the servo control unit 6, the pitch servo controller 1003, and the horizontal servo controller 1106 are all electrically connected to the azimuth servo controller 1007 via a serial RS485 bus. The folding servo controller 905 is electrically connected to the pitch servo controller 1003 via a serial RS485 bus. The servo control unit 6 is electrically connected to the tracking receiver 5 via a serial RS485 bus.

[0082] It is worth noting that this embodiment adopts a unified communication interface and control method, using a serial RS485 bus for data communication. Through a distributed architecture, it enables the simultaneous control of multiple devices using a single input communication interface. At the same time, multiple devices can also upload and provide feedback data through this interface. This architecture greatly reduces the number of communication interfaces and cables between devices, significantly reduces the complexity of secondary development control for users, and achieves the effect of developing device control once and using multiple devices together.

[0083] The control system of the large vehicle-mounted antenna feeder of the present invention controls the working principle and process of the large vehicle-mounted antenna feeder as follows: The large vehicle-mounted antenna feeder can receive tracking commands issued by the station control host computer through the servo control unit 6, automatically track low-orbit satellites, realize the transmission and reception of uplink and downlink signals of X-band satellites, and has the extended reception function of downlink signals of S and Ka-band satellites, realizing the communication and remote sensing functions of low-orbit satellites. The foldable antenna feeder unit 4 can be installed in the vehicle cabin unit 1. When in use, the antenna can be raised to the outside of the cabin unit 1 by the antenna raising and lowering device combined with the unfolding and retracting function of the foldable antenna feeder unit 4 itself. During transportation, the foldable antenna feeder unit 4 can be folded back into the cabin unit 1, ensuring that there are no obvious satellite receiving function characteristics in the folded and mobile states. After receiving the task, the large vehicle-mounted antenna feeder first unfolds the foldable antenna feeder unit 4 and points it to the initial position of the low-orbit satellite. It compares the received satellite signal with the single pulse and difference signals, and divides the difference signal into a left-hand circularly polarized difference signal and a right-hand circularly polarized difference signal. After polarization selection by a single-pole double-throw switch, it is connected to a transmit-stop filter. After signal amplification by an LNA, it is input into a phase-shifting synthesis network. After phase-shifting processing, a tracking signal is formed. After frequency conversion by a tracking down-converter, it is output to the tracking receiver 5. The tracking receiver 5 calculates the azimuth and elevation difference signals and sends them to the servo control unit 6 (ACU) to drive the antenna for automatic tracking.

[0084] During operation, the horizontal servo controller 1106 first controls the left opening and closing motor 102 to open the left opening and closing top cover 105 and the right opening and closing motor 111 to open the right opening and closing top cover 107. At this time, the left and right cabin top opening and closing sensors detect that the left and right opening and closing top covers 105 and 107 are open. Then, the horizontal servo controller 1106 controls the horizontal servo controller 206 to drive the inclined support arm 202 to rotate to the working position through the horizontal servo controller. At this time, the horizontal servo controller 1103 detects that the inclined support arm 202 is in position, and the electric push rod 212 is inserted into the first limit groove 214 on the inclined support arm 202. Figure 5The first antenna is positioned in the lower limiting slot 214, and the limiting block 205 is also inserted into the first limiting slot 214. Then, the left folding motor 402 drives the main reflector subunit to open, and the right folding motor 413 drives the right main reflector subunit 410 to open. At this time, the left antenna deployment status detection switch 902 and the right antenna deployment status detection switch 909 detect that the main reflector subunit 410 and the right main reflector subunit 410 are open. Then, the first azimuth motor 322 and the second azimuth motor 327 drive the elevation box 304 to rotate along the azimuth base 301 for azimuth tracking. At the same time, the first elevation motor 318 and the second elevation motor 323 drive the left elevation arm 306 and the right elevation arm 314 to rotate, thereby driving the folding antenna feeder unit 4 to perform elevation tracking. When folding, the two-dimensional turntable unit 3 rotates first. Upon reaching the initial position, the left folding motor 402 drives the main reflector subunit to close, while the right folding motor 413 drives the right main reflector subunit 410 to close. At this time, the left antenna folding state detection switch 908 and the right antenna folding state detection switch 903 detect the closure of the left main reflector subunit and the right main reflector subunit 410. At this time, the first locking cylinder 404 is inserted into the first pin 405, and the second locking cylinder 412 is inserted into the second pin 411. Then, the electric push rod 212 retracts to its original position, and the horizontal servo controller 1106 controls the horizontal folding motor 206 to drive the inclined arm 202 to rotate to the stowed position through the horizontal folding reducer. At this time, the horizontal folding locking state detection switch 1102 detects that the inclined arm 202 is in place, and the electric push rod 212 is inserted into the second limiting slot 214 on the inclined arm 202. Figure 5 The upper limit slot 214 is located in the middle, and the limit block 205 is also inserted into the second limit slot 214. Then the horizontal servo controller 1106 controls the left opening and closing motor 102 to close the left opening and closing top cover 105 and the right opening and closing motor 111 to close the right opening and closing top cover 107. At this time, the left cabin top opening and closing sensor and the right cabin top opening and closing sensor detect that the left opening and closing top cover 105 and the right opening and closing top cover 107 are closed. When the antenna horizontal servo controller 2 is working, it will issue a warning through the sound and light alarm unit.

[0085] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A large vehicle-mounted foldable antenna feeder device, characterized in that: It includes a container unit (1), an antenna raising and lowering unit (2), a foldable antenna feeder unit (4) that is pulled out or retracted from the container unit (1) by the antenna raising and lowering unit (2), a two-dimensional turntable unit (3) for controlling the foldable antenna feeder unit (4) to perform pitch tracking, and a control cabinet (12) for controlling the antenna raising and lowering unit (2), the two-dimensional turntable unit (3) and the foldable antenna feeder unit (4). The bottom of the antenna horizontal unit (2) is fixedly installed on the inner mounting surface of the cabin unit (1), the two-dimensional turntable unit (3) is fixedly installed between the antenna horizontal unit (2) and the foldable antenna feed unit (4), and the control cabinet (12) is fixedly installed inside the cabin unit (1). The control cabinet (12) includes a tracking receiver (5), a servo control unit (6), a power supply (7) and a power distribution unit (8). The power distribution unit (8) is electrically connected to the power supply (7), the power supply (7) is electrically connected to the servo control unit (6), and the servo control unit (6) is electrically connected to the tracking receiver (5). The antenna horizontal unit (2), the two-dimensional turntable unit (3), and the foldable antenna feed unit (4) are all electrically connected to the servo control unit (6); The container unit (1) includes a container body (101), a left opening and closing motor (102), a left electric cylinder support (103), a left hinge (104), a left opening and closing top cover (105), a left connecting rod (106), a right opening and closing top cover (107), a right hinge (108), a right connecting rod (109), a right electric cylinder support (110), and a right opening and closing motor (111). The left electric cylinder support (103) is fixedly installed on the left inner wall of the main body of the container (101). The left opening and closing motor (102) is fixedly installed on the left electric cylinder support (103). One end of the left connecting rod (106) is hinged to the left opening and closing motor (102), and the other end of the left connecting rod (106) is hinged to the left hinge seat (104). The left hinge seat (104) is fixedly installed on the left opening and closing top cover (105), and the left opening and closing top cover (105) is hinged to the left side of the main body of the container (101). The right electric cylinder support (110) is fixedly installed on the inner right side of the container body (101), the right opening and closing motor (111) is fixedly installed on the right electric cylinder support (110), one end of the right connecting rod (109) is hinged to the right opening and closing motor (111), the other end of the right connecting rod (109) is hinged to the right hinge seat (108), the right hinge seat (108) is fixedly installed on the right opening and closing top cover (107), and the right opening and closing top cover (107) is hinged to the right side of the container body (101); The antenna raising and lowering unit (2) includes a raising and lowering frame (201), a diagonal support arm (202), a gas spring (203), a gas spring support (204), a limiting block (205), a raising and lowering motor (206), a connecting sleeve (207), a raising and lowering reducer (208), a first bearing (209), a first rotating shaft (210), an angular contact bearing assembly (211), an electric push rod (212), and a push rod bracket (213). The horizontal lifting motor (206) is fixedly installed with the horizontal lifting reducer (208), and the horizontal lifting reducer (208) is fixedly installed on the horizontal lifting frame (201). The connecting sleeve (207) is splined to the output shaft of the horizontal lifting reducer (208). The left end of the connecting sleeve (207) is installed in the left mounting hole of the horizontal lifting frame (201) through the first bearing (209). The first rotating shaft (210) is installed in the right mounting hole of the horizontal lifting frame (201) through the angular contact bearing assembly (211). The left side of the inclined support arm (202) is fixedly connected to the connecting sleeve (207), and the right side of the inclined support arm (202) is fixedly connected to the connecting sleeve (207). The first rotating shaft (210) is fixedly connected, the upper end of the gas spring (203) is hinged to the inclined support arm (202), the lower end of the gas spring (203) is hinged to the gas spring support (204), the gas spring support (204) is fixedly connected to the container unit (1), the push rod bracket (213) is fixedly connected to the horizontal frame (201), the electric push rod (212) is fixedly installed on the push rod bracket (213), the limiting block (205) is assembled on the electric push rod (212), the inclined support arm (202) is provided with two limiting grooves (214), and the axes of the two limiting grooves (214) have an included angle.

2. The large vehicle-mounted folding antenna feeder device as described in claim 1, characterized in that, The two-dimensional turntable unit (3) includes an azimuth base (301), an azimuth encoder (302), a gear ball slewing bearing (303), an elevation box (304), a left counterweight (305), a left elevation support arm (306), an elevation encoder (307), a left bearing assembly (308), a left driven gear (309), a left rotating shaft (310), an antenna mounting plate (311), a right driven gear (312), a right rotating shaft (313), a right elevation support arm (314), a right bearing assembly (315), and a cable outlet. Cylinder (316), right counterweight (317), first pitch motor (318), first pitch reducer (319), first pitch drive gear (320), first azimuth reducer (321), first azimuth motor (322), second pitch motor (323), second pitch reducer (324), second pitch drive gear (325), second azimuth reducer (326), second azimuth motor (327), first azimuth drive gear (328), and second azimuth drive gear (329); The gear ball slewing bearing (303) is fixedly installed on the azimuth base (301), the pitch box (304) is installed on the gear ball slewing bearing (303), the first azimuth motor (322) is fixedly installed on the first azimuth reducer (321), the first azimuth reducer (321) is fixedly installed in the rear mounting hole on the inner bottom surface of the pitch box (304), the first azimuth drive gear (328) is fixedly installed on the output shaft of the first azimuth reducer (321) and the first azimuth drive gear (328) meshes with the gear ball slewing bearing (303), and the second azimuth motor (327) is fixedly installed on the second azimuth reducer (301). 26) The second azimuth reducer (326) is fixedly installed in the front mounting hole on the inner bottom surface of the pitch box (304). The second azimuth drive gear (329) is fixedly installed on the output shaft of the second azimuth reducer (326) and meshes with the gear ball slewing bearing (303). The left rotating shaft (310) is fixedly installed in the mounting hole on the left side of the pitch box (304). The left pitch support arm (306) is installed on the left rotating shaft (310) through the left bearing assembly (308). The left driven gear (309) is fixedly installed on the left pitch support arm (306). The left counterweight (305) is fixedly installed. On the bottom surface of the left pitch arm (306), the first pitch motor (318) is fixedly mounted on the first pitch reducer (319), the first pitch reducer (319) is fixedly mounted on the inner left side of the pitch box (304), the first pitch drive gear (320) is fixedly mounted on the output shaft of the first pitch reducer (319), the first pitch drive gear (320) meshes with the left driven gear (309), the right rotating shaft (313) is fixedly mounted in the mounting hole on the right side of the pitch box (304), the right pitch arm (314) is mounted on the right rotating shaft (313) through the right bearing assembly (315), and the right driven gear (312) The right counterweight (317) is fixedly installed on the bottom surface of the right pitch support arm (314). The second pitch motor (323) is fixedly installed on the second pitch reducer (324). The second pitch reducer (324) is fixedly installed on the right side of the inner side of the pitch box (304). The second pitch drive gear (325) is fixedly installed on the output shaft of the second pitch reducer (324). The second pitch drive gear (325) meshes with the right driven gear (312). The two ends of the antenna mounting plate (311) are respectively assembled with the top surface of the left pitch support arm (306) and the top surface of the right pitch support arm (314).

3. The large vehicle-mounted folding antenna feeder device as described in claim 2, characterized in that, The foldable antenna feeder unit (4) includes a middle main reflector subunit (401), a left folding motor (402), a first rotating bracket (403), a first locking cylinder (404), a first pin (405), a left main reflector subunit (406), a first hinge (407), a main reflector mounting bracket (408), a second hinge (409), a right main reflector subunit (410), a second pin (411), a second locking cylinder (412), a right folding motor (413), a second rotating bracket (414), and a secondary reflector subunit (415). The middle main reflector subunit (401) and the left folding motor (402) are both fixedly mounted on the main reflector mounting bracket (408). The first rotating bracket (403) is fixedly connected to the left main reflector subunit (406). The first rotating bracket (403) is mounted on the output shaft of the left folding motor (402). The left main reflector subunit (406) is assembled to the main reflector mounting bracket (408) through the first hinge (407). The first pin (405) is fixedly mounted on the left main reflector subunit (406). The first locking electric cylinder (404) and the second locking electric cylinder (412) are both fixedly mounted on the main reflector mounting bracket (408). The right folding motor (413) is fixedly mounted on the main reflector... Mounting bracket (408), the second rotating bracket (414) is fixedly connected to the right main reflector subunit (410), the second rotating bracket (414) is mounted on the output shaft of the right folding motor (413), the right main reflector subunit (410) is mounted on the main reflector mounting bracket (408) through the second hinge (409), the second pin (411) is fixedly mounted on the right main reflector subunit (410), the middle main reflector subunit (401) is provided with two rectangular slots, the sub-reflector subunit (415) is fixedly mounted on the main reflector mounting bracket (408), the sub-reflector subunit (415) and the middle main reflector subunit (401) are respectively located on both sides of the main reflector mounting bracket (408).

4. A control system for a large vehicle-mounted foldable antenna feeder device, used to control the large vehicle-mounted foldable antenna feeder device as described in claim 3, characterized in that, It includes a folding control unit (9), a two-dimensional turntable control unit (10), and a standing-down control unit (11), all of which are electrically connected to the power distribution unit (8). The folding control unit (9) is used to control the folding antenna unit (4) to unfold or retract; The two-dimensional turntable control unit (10) is used to control the rotation of the two-dimensional turntable unit (3) to drive the foldable antenna feed unit (4) to perform pitch tracking. The reclining control unit (11) is used to control the opening or closing of the left opening and closing top cover (105) and the right opening and closing top cover (107) of the cabin unit (1) and to control the antenna reclining unit (2) to extend or retract from the cabin unit (1).

5. The control system of the large vehicle-mounted foldable antenna servo device as described in claim 4, characterized in that, The folding control unit (9) includes a left folding motor driver (901), a left antenna unfolding status detection switch (902), a right antenna folding status detection switch (903), a single pulse feed (904), a folding servo controller (905), a right folding motor driver (906), a feed network subunit (907), a left antenna folding status detection switch (908), and a right antenna unfolding status detection switch (909). The left antenna deployment state detection switch (902), right antenna folding state detection switch (903), left antenna folding state detection switch (908) and right antenna deployment state detection switch (909) are all electrically connected to the folding servo controller (905). The feed network subunit (907) is electrically connected to the tracking receiver (5). The single pulse feed (904) is electrically connected to the feed network subunit (907). The folding servo controller (905) is electrically connected to the first locking cylinder (404), the second locking cylinder (412), the left folding motor driver (901), the single pulse feed (904) and the right folding motor driver (906), respectively. The left folding motor driver (901) is electrically connected to the left folding motor (402), and the right folding motor driver (906) is electrically connected to the right folding motor (413). The two-dimensional turntable control unit (10) includes a first pitch motor driver (1001), a second pitch motor driver (1002), a pitch servo controller (1003), a pitch limit switch (1004), a first azimuth motor driver (1005), a second azimuth motor driver (1006), an azimuth servo controller (1007), and an azimuth limit switch (1008). The first pitch motor driver (1001), the second pitch motor driver (1002), and the pitch limit switch (1004) are all electrically connected to the pitch servo controller (1003). The first pitch motor driver (1001) is electrically connected to the first pitch motor (318), and the second pitch motor driver (1002) is electrically connected to the second pitch motor (323). The pitch servo controller (1003) is electrically connected to the folding servo controller (905) and the azimuth servo controller (1007), respectively. The pitch servo controller (1003) is also connected to the pitch encoder. The first azimuth motor driver (1005), the second azimuth motor driver (1006), and the azimuth limit switch (1008) are all electrically connected to the azimuth servo controller (1007). The first azimuth motor driver (1005) is electrically connected to the first azimuth motor (322), the second azimuth motor driver (1006) is electrically connected to the second azimuth motor (327), the azimuth servo controller (1007) is electrically connected to the servo control unit (6), and the azimuth servo controller (1007) is electrically connected to the azimuth encoder (302). The standing and lying control unit (11) includes a standing and lying motor driver (1101), a standing and lying locking state detection switch (1102), a standing and lying position state detection switch (1103), a left cabin top opening and closing state sensor (1104), a right cabin top opening and closing state sensor (1105), a standing and lying servo controller (1106), a right opening and closing motor driver (1107), a left opening and closing motor driver (1108), and an audible and visual alarm subunit (1109). The stand-up / lie-up locking status detection switch (1102), the stand-up / lie-up position status detection switch (1103), the left cabin top opening / closing status sensor (1104), the right cabin top opening / closing status sensor (1105), and the audible and visual alarm subunit (1109) are all electrically connected to the stand-up / lie-up servo controller (1106). The stand-up / lie-up servo controller (1106) is electrically connected to the electric push rod (212), the stand-up / lie-up motor driver (1101), the right opening / closing motor driver (1107), and the left opening / closing motor driver (1108), respectively. The right opening / closing motor driver (1107) is electrically connected to the right opening / closing motor (111), the left opening / closing motor driver (1108) is electrically connected to the left opening / closing motor (102), and the stand-up / lie-up servo controller (1106) is electrically connected to the orientation servo controller (1007).

6. The control system of the large vehicle-mounted foldable antenna feeder device as described in claim 5, characterized in that, The servo control unit (6), pitch servo controller (1003), and horizontal servo controller (1106) are all electrically connected to the azimuth servo controller (1007) via a serial RS485 bus. The folding servo controller (905) is electrically connected to the pitch servo controller (1003) via a serial RS485 bus. The servo control unit (6) is electrically connected to the tracking receiver (5) via a serial RS485 bus.

Images