CN-121584193-B - Novel slot flat-plate scattering portable antenna system

CN121584193BCN 121584193 BCN121584193 BCN 121584193BCN-121584193-B

Abstract

The application provides a novel slot flat-plate scattering portable antenna system, which is applied to the technical field of antenna scattering communication. The antenna surface detection device comprises an antenna surface subsystem, a servo rotor subsystem and a foldable tripod unit, wherein the servo rotor subsystem and the foldable tripod unit are arranged on a backboard of the antenna surface subsystem, the foldable tripod unit supports the servo rotor subsystem, the antenna surface subsystem transmits and receives electromagnetic wave signals, the servo rotor subsystem carries and drives the antenna surface subsystem to conduct azimuth and pitching rotation, the servo rotor subsystem comprises an azimuth component, a pitching component, an ultrasonic sensor and a servo control system, the ultrasonic sensor measures the real-time distance between the ultrasonic sensor and the backboard, the servo control system determines the current pitching angle according to the real-time distance, and the azimuth component and the pitching component are controlled to stop running under the condition that the current azimuth angle and the current pitching angle of the antenna surface subsystem meet preset conditions of an alignment target. The portable antenna solves the problems of huge volume, complicated erection, low intelligent degree of posture adjustment, overlarge weight and insufficient modularized design of the conventional portable antenna.

Inventors

GUO JIAN
KANG MIN
HU GANG
ZHANG JINLONG
ZHANG NING
LI XINTAO

Assignees

西安通飞电子科技有限公司

Dates

Publication Date: 20260512
Application Date: 20251231

Claims (10)

1. The novel slot flat-plate scattering portable antenna system is characterized by comprising an antenna surface subsystem, a servo turntable subsystem and a foldable tripod unit, wherein the servo turntable subsystem is arranged on a back plate of the antenna surface subsystem, and the foldable tripod unit is used for supporting the servo turntable subsystem; the antenna surface subsystem is used for transmitting and receiving electromagnetic wave signals and comprises an antenna housing, a radiation gap layer, a coupling cavity layer and an H-T type broadband ridge waveguide feed network layer which are sequentially arranged from top to bottom; The servo turntable subsystem is used for bearing and driving the antenna surface subsystem to rotate in azimuth and in elevation and comprises an azimuth component, an elevation component, an ultrasonic sensor and a servo control system, wherein the azimuth component is connected with the elevation component through a first hinge, and the first hinge adopts a matching structure of a single support arm and a D-shaped seat; The ultrasonic sensor is fixed on a support arm which does not move along with pitching, is arranged vertically towards the backboard of the antenna surface subsystem and is used for measuring the real-time distance L between the ultrasonic sensor and the backboard in real time; The servo control system is used for acquiring the current azimuth angle of the antenna surface subsystem in the process of controlling the antenna surface subsystem to rotate in azimuth by the azimuth component, simultaneously, determining the current pitch angle of the antenna surface subsystem according to the real-time distance L and a distance-angle conversion algorithm in the process of controlling the antenna surface subsystem to rotate in elevation by the elevation component, and controlling the azimuth component and the elevation component to stop running under the condition that the current azimuth angle and the current pitch angle meet the preset condition that the antenna surface subsystem is aligned to a target.
2. The novel slot panel scattering portable antenna system of claim 1, wherein the servo control system for determining the current pitch angle of the antenna surface subsystem according to the real-time distance L and a distance-angle conversion algorithm comprises: The servo control system is specifically configured to obtain an initial distance L0 between the ultrasonic sensor and the back plate and obtain a fixed distance D between the ultrasonic sensor and a pitch axis, where the pitch axis is an intersection point between an azimuth axis of the azimuth assembly and a pitch axis of the pitch assembly, when an initial pitch angle of the antenna surface subsystem is 0 °; determining the current pitch angle according to the real-time distance L, the initial distance L0 and the fixed distance D and the distance-angle conversion algorithm; The calculation formula of the distance-angle conversion algorithm is that θ=arcsin ((L-L0)/D); θ represents the current pitch angle, L represents the real-time distance, L0 represents the initial distance, and D represents the fixed distance.
3. The novel slot flat-plate scattering portable antenna system of claim 1, wherein the servo-rotor subsystem further comprises a double-Beidou positioning module, the double-Beidou positioning module comprises two Beidou navigation receivers, the two Beidou navigation receivers are respectively used for receiving Beidou second satellite signals and Beidou third satellite signals for positioning to obtain longitude information and latitude information of the target, the servo-control system is used for controlling the azimuth assembly and the pitching assembly to stop running under the condition that the current azimuth angle and the current pitch angle meet the preset condition that the antenna surface subsystem is aligned to the target, and the servo-control system comprises: the servo control system is specifically used for calculating the position information of the target according to the longitude information and the latitude information, and calculating the theoretical azimuth angle and the theoretical pitch angle of the antenna surface subsystem aligned to the target according to the position information; And controlling the azimuth component and the pitching component to stop running under the condition that the difference value between the current azimuth angle and the theoretical azimuth angle is smaller than a first preset threshold value and the difference value between the current pitch angle and the theoretical pitch angle is smaller than a second preset threshold value.
4. The novel slot panel scattering portable antenna system of claim 3, wherein the azimuth assembly comprises an azimuth motor, a gear set and a worm gear mechanism, the azimuth motor drives the worm gear mechanism through the gear set, and the cradle head bottom plate of the servo control system is controlled to perform azimuth rotation around a cradle head bottom shaft of the servo control system.
5. The novel slot panel scattering portable antenna system of claim 4, wherein the pitch assembly comprises a custom-made pitch motor with a screw and a screw nut, the screw nut is connected to the antenna surface subsystem, the pitch motor drives the screw nut to move along the screw, and the antenna surface subsystem is controlled to perform pitch rotation around a pitch axis.
6. The novel slot flat-panel scattering portable antenna system according to claim 5, wherein the servo control system comprises a serial port controller and a motor drive controller, the serial port controller is connected with a main control unit through an RS232 interface, and the motor drive controller is integrated on the main control unit and is used for receiving feedback data of the azimuth motor and the pitching motor.
7. The novel slot panel scattering portable antenna system of claim 6, wherein the servo-turret subsystem has an unfolded state and a folded state, wherein in the folded state the azimuth assembly and the elevation assembly are folded in a straight line and the L-shaped plate is folded inwardly, the elevation motor being folded inside the single arm.
8. The novel slot panel scattering portable antenna system of claim 7, wherein the servo control system operating modes include a standby mode, a position pointing mode, and a digital guidance mode; In the standby mode, driving of the azimuth component and the elevation component is prohibited; Under the position pointing mode, a target azimuth angle and a target pitch angle are input through a human-computer interface, and the antenna surface subsystem is controlled to operate to a specified position, wherein the current pitch angle of the antenna surface subsystem is calculated by the real-time distance L measured by the ultrasonic sensor through the distance-angle conversion algorithm; and in the digital guiding mode, receiving azimuth and pitch angle instructions issued by external station control software, and controlling the antenna surface subsystem to steer to a guiding position.
9. The novel slot panel scattering portable antenna system of any of claims 1-4, wherein the folding operation of the second hinge causes the spring press to compress the innerspring and release the spigot by manually depressing the spring press, causing the tilt assembly to rotationally fold relative to the azimuth assembly; The folding operation of the first hinge enables the handle and the azimuth component to be loosened by manually rotating the locking handle, and enables the azimuth component and the pitching component to relatively rotate to a parallel position.
10. The novel slot panel scattering portable antenna system of any of claims 1-4, wherein the azimuth assembly has a rotation range of [ -185 °,185 ° ], a rotation speed adjustment range of [0.1 °/s,3 °/s ], the pitch assembly has a rotation range of [ -8 °,10 ° ], a rotation speed adjustment range of [0.1 °/s,3 °/s ], and the antenna face subsystem has a pointing control accuracy of less than or equal to 0.1 °.

Description

Novel slot flat-plate scattering portable antenna system Technical Field The application relates to the technical field of antenna scattering communication, in particular to a novel slot flat-plate scattering portable antenna system. Background The scattering communication is a novel communication means of beyond visual range, and uses the scattering effect of the air medium on electromagnetic waves to communicate between two places. The portable scattering communication antenna (simply called as portable antenna) is a component of a scattering communication system and is used for directionally transmitting signals sent out by the high-power amplifier to free space, receiving electromagnetic wave signals in the directional free space and transmitting the electromagnetic wave signals to scattering communication equipment, so that the scattering communication of signals in a working frequency band is realized, and the service communication functions of voice, data, video and the like can be realized. The portable scattering communication unit antenna is used in an outdoor environment, the normal work of 6-level wind is met, 8-level wind is not damaged, the accurate alignment of the antenna to a target position is realized by adjusting the azimuth and the pitching of the antenna in the field use process, the portable scattering communication unit antenna has the functions of quick assembly and quick disassembly, and can accept the management of monitoring equipment in a station. With the development of communication technology, there is an increasing demand for portable antennas. However, the existing portable antenna mainly has the defects of huge volume, complicated erection, low intelligent degree of posture adjustment, overlarge weight, insufficient modularized design and the like. Therefore, how to solve the defects of the conventional portable antenna is a need for solving the problems. Disclosure of Invention The embodiment of the application provides a novel slit flat-plate scattering portable antenna system, which can simultaneously break through five technical bottlenecks of ultrathin flat plates, quick erection, intelligent alignment target, light weight and modularization, and effectively solves the problems of huge volume, complicated erection, low intelligent degree of posture adjustment, overlarge weight and insufficient modularized design of the conventional portable antenna. The embodiment of the application provides a novel slot flat-plate scattering portable antenna system, which comprises an antenna surface subsystem, a servo turntable subsystem and a foldable tripod unit, wherein the servo turntable subsystem is arranged on a back plate of the antenna surface subsystem, and the foldable tripod unit is used for supporting the servo turntable subsystem; the antenna surface subsystem is used for transmitting and receiving electromagnetic wave signals and comprises an antenna housing, a radiation gap layer, a coupling cavity layer and an H-T type broadband ridge waveguide feed network layer which are sequentially arranged from top to bottom; The servo turntable subsystem is used for bearing and driving the antenna surface subsystem to rotate in azimuth and in elevation and comprises an azimuth component, an elevation component, an ultrasonic sensor and a servo control system, wherein the azimuth component is connected with the elevation component through a first hinge, and the first hinge adopts a matching structure of a single support arm and a D-shaped seat; The ultrasonic sensor is fixed on a support arm which does not move along with pitching, is arranged vertically towards the backboard of the antenna surface subsystem and is used for measuring the real-time distance L between the ultrasonic sensor and the backboard in real time; The servo control system is used for acquiring the current azimuth angle of the antenna surface subsystem in the process of controlling the antenna surface subsystem to rotate in azimuth by the azimuth component, simultaneously, determining the current pitch angle of the antenna surface subsystem according to the real-time distance L and a distance-angle conversion algorithm in the process of controlling the antenna surface subsystem to rotate in elevation by the elevation component, and controlling the azimuth component and the elevation component to stop running under the condition that the current azimuth angle and the current pitch angle meet the preset condition that the antenna surface subsystem is aligned to a target. The novel slit flat scattering portable antenna system is used for determining a current pitch angle of an antenna surface subsystem according to a real-time distance L and a distance-angle conversion algorithm, and comprises the servo control system, wherein the servo control system is specifically used for acquiring an initial distance L0 between an ultrasonic sensor and a back plate and acquiring a fixed distance D between the ultrasonic s