Small-caliber Ka automatic tablet personal computer portable station integrated with all-Netcom module

Abstract

The invention relates to the technical field of satellite communication, and discloses a small-caliber Ka automatic panel portable station integrated with an all-network communication module, which is characterized in that a small-caliber Ka panel antenna is adopted in an antenna case, and a modulation-demodulation M board, a BUC signal transmitting module, an LNB signal receiving module, an ACU control board, a beacon machine, the all-network communication module and a waveguide switching module are integrated in the antenna case; ka satellite communication and a multi-mode all-network communication module are integrated through modular integrated design, an intelligent link dynamic switching technology, lightweight alloy material application and battery external structure optimization are matched, and different scene requirements are adapted through a configurable differentiated communication strategy and a precise parameter adjustment mechanism; the efficient unification of communication coverage comprehensiveness, equipment portability and service stability is realized, and the implementation and operation cost of the system is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of satellite communication, more particularly, it relates to a small-diameter Ka automatic flat portable station integrated with a full-network module. BACKGROUND

[0002] Traditional satellite portable stations mostly rely on single satellite frequency band to transmit data, and have the problems of limited bandwidth and high cost. Although the ground cellular network has sufficient bandwidth, it has coverage blind spots in remote areas, disaster sites and other scenarios. Moreover, multi-mode terminals are mostly simple module stacks, and have not realized true protocol fusion and resource optimization. At the same time, the devices generally weigh more than 20 kg, and have long deployment time. The performance and antenna size are deeply bound, resulting in poor portability. Pursuing long endurance increases the battery capacity, which further increases the weight of the device. It also needs to match larger power support motors and high-strength transmission structures, forming a prominent contradiction between endurance and weight. Single data channel also leads to unstable service quality, which is difficult to meet the high requirements of real-time communication, reliability and device portability in emergency rescue, field operation and other scenarios.

[0003] Therefore, the present application provides a small-diameter Ka automatic flat portable station integrated with a full-network module, which improves the above technical problems. SUMMARY

[0004] The present application aims to solve the problems of the prior art, and provides a small-diameter Ka automatic flat portable station integrated with a full-network module. The present application integrates Ka satellite communication and multi-mode full-network module through modular integrated design, and is matched with intelligent link dynamic switching technology, lightweight alloy material application and battery external structure optimization. Through configurable differentiated communication strategy and precise parameter adjustment mechanism, it adapts to different scene requirements, realizes efficient unification of communication coverage comprehensiveness, device portability and service stability, and effectively reduces system implementation and operation cost.

[0005] The above technical purpose of the present application is realized by the following technical scheme: a small-diameter Ka automatic flat portable station integrated with a full-network module, comprising: an antenna machine box, an automatic support, a battery and a full-network external antenna. The antenna machine box adopts a small-diameter Ka flat panel antenna, and internally integrates a modem board, a BUC signal transmission module, an LNB signal receiving module, an ACU control board, a beacon machine, a full-network module and a waveguide switching module. The automatic support is installed on the back of the antenna machine box and adopts a two-axis design, which is used to realize automatic satellite pointing of the Ka flat panel antenna. The battery is provided with two, which are installed on the two sides of the automatic support to provide outdoor endurance for the device. The full-network external antenna is provided with four 0-6G tubular antennas, which are integrated on the two sides of the antenna machine box to enhance the stability of ground cellular signal reception. The full-network module interacts with the ACU control board via an RJ45 network port. The two ends of the waveguide switching module are connected to the BUC signal transmitting module and the LNB signal receiving module, respectively, to switch the receiving / transmitting path of the antenna left / right rotation signal to achieve polarization switching. The beacon unit works with the modem M board and Ka planar antenna to calibrate satellite signals and assist in automatic satellite alignment.

[0006] As a preferred technical solution of the present invention, the full-network module supports five modes: LTE-TDD / LTE-FDD / TD-SCDMA / WCDMA / GPRS, is compatible with multiple networks, has automatic network selection, seamless switching function and diversity reception technology, and can receive signals simultaneously through multiple antennas to reduce the bit error rate.

[0007] As a preferred embodiment of the present invention, the outer shell of the antenna housing and the Ka-flat panel antenna are manufactured using magnesium-aluminum alloy AZ31B, and the main material of the automatic support is 6061-T6 aluminum alloy.

[0008] As a preferred technical solution of the present invention, the ACU control board has the following functions: providing power supply to each module inside the antenna chassis, providing an external debugging port for the modem M board, providing a control interface for the automatic support, and realizing multi-network port data exchange; the antenna chassis is also provided with 2 external debugging network ports and 4 full-network mobile signal antenna connection ports.

[0009] As a preferred technical solution of the present invention, the satellite signal processing flow of the device is as follows: after the Ka-flat panel antenna receives the satellite signal, it is down-converted and amplified by the LNB signal receiving module, and then transmitted to the modem board after the beacon machine calibrates the signal, and demodulated into a network signal; the local external signal is demodulated into a high-frequency satellite signal by the modem board, and then up-converted and amplified by the BUC signal transmitting module and transmitted to the satellite by the Ka-flat panel antenna.

[0010] As a preferred technical solution of the present invention, the workflow of the full-network compatible module includes: after the device is started, the full-network compatible module automatically scans the surrounding cellular network signals and identifies available operators and signal strengths, while the satellite module completes satellite alignment and network access; the core control unit determines the link priority according to a preset strategy; when the quality of the main link degrades, the core control unit triggers dynamic link switching, the full-network compatible module and the satellite module exchange status information through the API interface, and the protocol conversion unit encapsulates the data into a format suitable for the target link; and through a traffic priority scheduling algorithm, critical service data is transmitted first to ensure QoS.

[0011] As a preferred embodiment of the present invention, the dynamic link switching includes: mobile signal switching and satellite signal switching; the triggering conditions for the mobile signal switching are: Received Signal Strength Indicator (RSSI) greater than -96 dBm, Signal-to-Noise Ratio (SNR) greater than 15 dB, and Long-Term Average Bit Error Rate (BER) less than 10⁻⁻⁴. 6 The link performance weighted score exceeds 80 points; the triggering conditions for satellite signal switching are: the mobile signal RSSI is below -96dBm for 5 consecutive seconds, the mobile network latency exceeds 500ms and the jitter is greater than 100ms, the device is in a preset mobile network coverage blind zone, or the user manually selects the "satellite priority" mode.

[0012] As a preferred embodiment of the present invention, the process of antenna parameter reconstruction during the mobile signal switching process is as follows: Polarization adjustment: By controlling the feed phase of the cross-grid radiating elements, the switching from satellite communication circular polarization to mobile communication linear polarization is achieved, reducing polarization loss ( The formula for calculating ) is: ; Where ρ is the axial ratio; Radiation mode reconstruction: Adjusting the excitation amplitude and phase of the array elements, the reconstructed antenna gain ( The formula for calculating ) is: ; in, For maximum gain, For mobile mode beamwidth, For satellite mode beamwidth; Frequency reconfiguration: Frequency adaptation and impedance matching are achieved through tunable matching networks and switched filter banks, resulting in changes in frequency switching efficiency. It can be estimated as follows: ; in, For satellite frequencies, For mobile frequency, Here, Q is the center frequency, and Q is the quality factor.

[0013] As a preferred embodiment of the present invention, link budget verification needs to be completed before the satellite signal switching, including: Acceptance quality factor (G / T): ; in, For receiving gain, Antenna noise temperature, The receiver noise temperature; Equivalent Isotropic Radiated Power (EIRP): ; in, For transmission power, For transmit gain, This refers to feeder loss; Carrier-to-noise ratio (CNR) ): ; in, For the EIRP satellite, Here, k represents the downlink path loss, and k is the Boltzmann constant.

[0014] As a preferred embodiment of the present invention, the automatic support's satellite alignment and tracking process includes: Coarse alignment: Calculate the satellite azimuth / elevation angle based on GPS position and digital compass direction, drive the Ka-flat panel antenna to point to the predicted position, and use attitude sensors to compensate for the tilt of the mounting platform; Beacon search: Within a range of ±5° around the predicted location, a spiral scan is performed in steps of 0.2°, with a 100ms pause at each step to detect the satellite beacon signal strength; Fine tracking: After capturing the beacon, switch to closed-loop tracking mode and use single-pulse amplitude comparison method or step tracking method to maintain pointing accuracy, achieving a static accuracy of 0.2° and a dynamic accuracy of 1°.

[0015] In summary, the present invention has the following beneficial effects: Firstly, by modularly integrating Ka satellite communication modules and full-network compatibility modules, a dual-link three-dimensional communication system of "satellite + terrestrial cellular" is constructed, solving the problem of blind spots in the coverage of traditional portable stations with a single link. In remote areas, disaster sites, and other scenarios where terrestrial networks are paralyzed, it can automatically switch to the Ka satellite link; in cellular network coverage areas, terrestrial link backup is prioritized, and through diversity reception technology and a "connect first, then disconnect" soft handover mechanism, the signal error rate is controlled at 10⁻. 6 The following measures are in place to ensure uninterrupted communication in scenarios such as emergency rescue and field operations.

[0016] Secondly, the antenna housing and antenna are made of magnesium-aluminum alloy AZ31B, and the automatic support is made of 6061-T6 aluminum alloy. Combined with the external battery structure design, the overall weight of the equipment is controlled to ≤11KG (far lower than the weight of traditional portable stations of more than 20kg). The overall size is only 480mm×350mm×100mm, which can be carried by a single person. At the same time, the two-axis automatic support, together with the beacon machine and the spiral scanning satellite alignment algorithm, can achieve rapid satellite alignment and deployment, solving the pain points of long deployment time and inconvenient mobile operation of traditional equipment.

[0017] Thirdly, through an intelligent service offloading mechanism, low-latency services (voice, real-time positioning) are prioritized for allocation to terrestrial cellular links, high-bandwidth services (high-definition video, large file transfer) are allocated to Ka satellite links, and critical services (emergency commands, control signals) are transmitted synchronously through dual links. Combined with a traffic priority scheduling algorithm, this ensures QoS. Furthermore, during handover, polarization adjustment (precise conversion between circular and linear polarization with near-zero polarization loss), beam reconfiguration (high-gain narrow beam in satellite mode / wide beam in mobile mode), and frequency reconfiguration (switching between Ka band and mobile communication band within 0.5 seconds) achieve seamless link transition, meeting the differentiated communication quality requirements of various services. Attached Figure Description

[0018] Figure 1 A front perspective view of a small-aperture Ka automatic flat-panel portable station with an integrated full network connectivity module provided for an embodiment of the present invention; Figure 2 A rear perspective view of a small-aperture Ka-type automatic flat-panel portable station with an integrated full network connectivity module is provided for an embodiment of the present invention; Figure 3 This invention provides an internal structural diagram of a small-aperture Ka-type automatic flatbed portable station with an integrated full network connectivity module, as shown in an embodiment of the invention. In the diagram: 1. Ka flat panel antenna, 2. Modulation and demodulation board, 3. LNB signal receiving module, 4. ACU control board, 5. BUC signal transmitting module, 6. Beacon, 7. All-network compatible module, 8. Waveguide switching module, 9. Antenna chassis, 10. Automatic bracket, 11. Battery, 12. All-network compatible external antenna. Detailed Implementation

[0019] The present application will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application. These all fall within the protection scope of the present application.

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0022] Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0023] This disclosure aims to address the problems of insufficient communication coverage, high cost, poor portability, significant contradiction between battery life and weight, and unstable service quality of traditional satellite portable stations. In view of this, this disclosure proposes a small-aperture Ka-band automatic flat-panel portable station integrating a full-network compatible module. This device employs modular integration, intelligent link switching, and lightweight material application technologies. Through configurable and differentiated communication links and structural designs, it adapts to the usage requirements of different scenarios, thereby reducing system implementation costs and improving device applicability and communication reliability.

[0024] Please refer to Figure 3 , Figure 3 This illustration shows the internal structure of a small-aperture Ka-type automatic flat panel portable station with an integrated full-network module, as described in an embodiment of this disclosure. It includes: an antenna housing 9, an automatic support 10, a battery 11, and a full-network external antenna 12. The antenna housing 9 uses a 0.45m diameter Ka-type flat panel antenna 1, internally integrating a modem M-board 2, a signal transmission module BUC5 (up-conversion amplifier module), a signal reception module LNB3 (down-conversion amplifier module), an ACU control board 4, a beacon unit 6, a full-network module 7, and a waveguide switching module 8. The automatic support 10 is mounted on the back of the antenna housing 9 and features a dual-axis design. Two batteries 11 are installed on either side of the automatic support 10. The full-network external antenna 12 has four 0-6G tubular antennas, integrated on both sides of the antenna housing 9.

[0025] The full-network compatible module 7 measures 180mm×170mm×20mm. It interacts with the ACU control board 4 via an RJ45 network port, supports five modes: LTE-TDD / LTE-FDD / TD-SCDMA / WCDMA / GPRS, is compatible with the networks of China Mobile, China Unicom, China Telecom and other operators, has automatic network selection and seamless switching functions, and supports diversity reception technology.

[0026] The antenna housing 9 and the Ka flat panel antenna 1 are made of magnesium-aluminum alloy AZ31B. The automatic support 10 is mainly made of 6061-T6. The overall dimensions of the equipment are 480mm×350mm×100mm, the overall weight is ≤11KG, the protection level is ≥IP66, and the operating temperature range is -30℃~70℃.

[0027] The ACU control board 4 provides power to each module, provides an external debugging port for the modem M board 2, provides a control interface for the automatic support 10, and has a multi-network port switching function; the waveguide switching module 8 is used to switch the signal reception / transmission path of the antenna to the left / right rotation, realizing the polarization switching function; the beacon unit 6 is used to transmit / receive uplink beacon signals, calibrate satellite signals, and assist the Ka planar antenna 1 in automatic satellite alignment.

[0028] The signal processing flow of this portable station is as follows: Satellite signal reception and transmission: After receiving satellite signals, the Ka flat panel antenna 1 is down-converted and amplified by the signal receiving module LNB3, and then demodulated into network signals in stages by the beacon unit 6 and the modem M board 2; the external signal is demodulated into high-frequency satellite signals by the modem M board 2, and then up-converted and amplified by the signal transmitting module BUC5 before being transmitted by the Ka flat panel antenna 1. Full-Network Module 7 Workflow: After the device starts up, the Full-Network Module 7 automatically scans for surrounding cellular network signals, while the satellite module completes satellite alignment and network access. The core control unit determines the link priority based on signal strength, service type, and tariff standard. When the quality of the main link degrades, it triggers dynamic link switching. The Full-Network Module 7 and the satellite module exchange status information and perform protocol conversion through the API interface, and ensure QoS through traffic priority scheduling algorithm.

[0029] The link switching mechanism of this portable station is as follows: Mobile signal handover: When the Received Signal Strength Indication (RSSI) is higher than -96dBm and the Signal-to-Noise Ratio (SNR) is greater than 15dB, and the Long-Term Average Bit Error Rate (BER) is lower than 10⁻ 6 When the link performance weighted score exceeds 80 points, mobile signal handover is triggered. During the handover process, the polarization mode is adjusted from circular polarization to linear polarization, the radiation mode is reconstructed, and the frequency is reconfigured from Ka band to mobile communication band.

[0030] Satellite signal handover: When the mobile signal RSSI remains below -96dBm for 5 seconds, the mobile network latency exceeds 500ms and jitter is greater than 100ms, the geographical location is in a mobile network coverage blind spot, or the user manually selects the "satellite priority" mode, the satellite link establishment process is initiated to complete link budget verification, antenna parameter reconfiguration, and satellite tracking. The satellite tracking accuracy reaches 0.2° statically and 1° dynamically.

[0031] Antenna parameter adjustments during the handover process are a key technical factor in ensuring a seamless transition. When switching from satellite signals to mobile signals, the antenna needs to perform a series of parameter reconfigurations, as follows: 1) Polarization Adjustment: Satellite communication typically uses circular polarization (left-hand or right-hand), while mobile networks use linear polarization (vertical or horizontal); therefore, the antenna switches from circular to linear polarization by controlling the feed phase of the cross-grid radiating elements. Polarization loss ( The formula for calculating ) is: ; Where ρ is the axial ratio.

[0032] 2) Radiation Mode Reconstruction: Satellite communication requires high-gain directional beams, while mobile communication requires omnidirectional or wide-beam coverage; therefore, the antenna adjusts the excitation amplitude and phase of the array elements. The reconstructed antenna gain ( The formula for calculating ) is: ; in, For maximum gain, For mobile mode beamwidth, This refers to the beamwidth in satellite mode.

[0033] 3) Frequency reconfiguration: The antenna feed network needs to be switched from the Ka band to the mobile communication band; frequency adaptation and impedance matching are achieved through a tunable matching network and a switching filter bank. Efficiency changes caused by frequency switching ( It can be estimated as follows: ; in, For satellite frequencies, For mobile frequency, Here, Q is the center frequency, and Q is the quality factor.

[0034] Link budget verification is a necessary calculation step before satellite handover. The system needs to evaluate the space link conditions between the current geographical location and the target satellite in real time to ensure that communication quality requirements are met. 1) Receiver Quality Factor (G / T): A core parameter characterizing the receiver sensitivity of a ground station. The calculation formula is as follows: ; in, For receiving gain, Antenna noise temperature, This refers to the receiver noise temperature.

[0035] 2) Equivalent Isotropic Radiated Power (EIRP): Ensures the uplink signal is strong enough to maintain a stable connection. ; in, For transmission power, For transmit gain, For feeder loss, the specific equipment parameters involved can be substituted to calculate whether the radiated power meets the uplink requirements of the Zhongxing-16 satellite.

[0036] 3) Carrier-to-noise ratio (CNR) Comprehensive evaluation of link quality: ; in, For the EIRP satellite, Here, k represents the downlink path loss, and k is the Boltzmann constant.

[0037] Antenna parameter reconfiguration is a crucial step in satellite mode establishment, involving several precise adjustments: 1) Polarization matching: Switch to the correct circular polarization direction (left-hand or right-hand) according to satellite requirements; achieve circular polarization by controlling the feed phase relationship (90° phase difference) of the cross grid radiating elements, and control the axial ratio within 1.5dB; the polarization loss calculation formula is the same as that for mobile switching, but since the satellite system also uses circular polarization, the theoretical polarization loss is close to 0dB.

[0038] 2) Beam Sharpening: Switching from a wide beam in mobile mode to a high-gain narrow beam; achieving precise beamwidth control by activating all array elements and applying a Taylor weighted distribution; the relationship between beamwidth (θ3dB) and array size (D) is: ; 3) Frequency tuning: The RF front end needs to switch from the mobile frequency band to the Ka satellite frequency band; this process is achieved through software-defined radio (SDR) technology and tunable filter banks, with the switching time controlled within 0.5s.

[0039] 4) Transmit power enhancement: from low power in mobile mode to high power in satellite mode; the power amplifier can increase the output in multiple steps, with each step spaced at a unit time interval to avoid instantaneous overload; the system monitors VSWR in real time, and immediately stops power enhancement and triggers the protection mechanism when an anomaly is detected.

[0040] The satellite acquisition and tracking process is the core of establishing a satellite mode. The portable station completes satellite acquisition and tracking through the following steps: 1) Coarse Alignment: Based on GPS position and digital compass orientation, the satellite azimuth / elevation angle is calculated, driving Ka-panel antenna 1 to point to the predicted position. Attitude sensors compensate for the tilt of the mounting platform (e.g., road slope when mounted on a vehicle).

[0041] 2) Beacon Search: A spiral scan is performed around the predicted location to search for satellite beacon signals. The search range is ±5°, with a step size of 0.2°, and a 100ms pause at each step to check signal strength. The spiral scan algorithm mentioned in the search results can effectively improve the beacon acquisition speed.

[0042] 3) Precise Tracking: After beacon acquisition, switch to closed-loop tracking mode, using single-pulse amplitude comparison or step tracking to maintain precise pointing. Tracking accuracy reaches 0.2° (static) and 1° (dynamic), meeting the Ka-band beam pointing requirements.

[0043] Example: The full-network module 7 adopts an industrial-grade multi-mode design, supporting five standards: LTE-TDD / LTE-FDD / TD-SCDMA / WCDMA / GPRS. It interacts with the ACU control board 4 via an RJ45 network port. Its four external tubular antennas are symmetrically mounted on both sides of the antenna housing 9, with a spacing of half the device width to minimize interference from obstacles and multipath transmission. Combined with diversity reception technology, the signal error rate can be reduced to 10⁻. 6 the following.

[0044] The automatic support 10 adopts a two-axis transmission structure, and the drive motor is a miniaturized, low-torque model. The transmission components are precision-machined from 6061-T6 aluminum alloy. It has an automatic satellite alignment function. Its working process is as follows: calculate the satellite azimuth / elevation angle based on the GPS position and digital compass direction, and drive the Ka-panel antenna 1 to complete the coarse alignment; perform a spiral scan in 0.2° steps within ±5° around the predicted position, and pause for 100ms at each step to detect the signal strength to complete the beacon search; after the beacon is acquired, switch to closed-loop tracking mode and use the single-pulse amplitude comparison method to maintain accurate pointing.

[0045] When the equipment is working, the core control unit monitors the status of the satellite link and cellular network in real time. When the cellular network signal meets the switching conditions (RSSI higher than -96dBm, SNR greater than 15dB, latency less than 150ms, jitter less than 30ms), it automatically switches to the terrestrial link to transmit low-latency services. When the cellular network signal quality deteriorates or is in a coverage blind spot, it quickly switches to the satellite link. The switching process adopts the "connect first, then disconnect" soft switching technology to ensure that the TCP / IP session is maintained continuously and the user is unaware of it.

[0046] In emergency rescue scenarios, this portable station can be quickly deployed to disaster sites, transmitting high-definition rescue videos via satellite links, while simultaneously utilizing cellular networks to enable voice communication and real-time location data transmission for rescue personnel. Critical rescue commands are transmitted synchronously through dual links to ensure communication reliability. In field operations, the device can automatically switch communication links based on network coverage, reducing communication costs while supporting applications such as online maps and cloud storage, thereby improving operational efficiency.

[0047] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A small-aperture Ka-band automatic flatbed portable station integrating a full network compatibility module, characterized in that, include: Antenna housing (9), automatic bracket (10), battery (11) and full network compatible external antenna (12); The antenna chassis (9) adopts a small-aperture Ka planar antenna (1), which integrates a modulation and demodulation M board (2), a BUC signal transmission module (5), an LNB signal receiving module (3), an ACU control board (4), a beacon machine (6), a full network module (7), and a waveguide switching module (8). The automatic bracket (10) is installed on the back of the antenna housing (9) and adopts a two-axis design to realize automatic satellite alignment of the Ka flat panel antenna (1); there are two batteries (11), which are installed on both sides of the automatic bracket (10) to provide outdoor power for the device; the full network external antenna (12) is equipped with four 0-6G tubular antennas, which are integrated on both sides of the antenna housing (9) to enhance the stability of ground cellular signal reception; The full network module (7) interacts with the ACU control board (4) via an RJ45 network port. The two ends of the waveguide switching module (8) are connected to the BUC signal transmitting module (5) and the LNB signal receiving module (3) respectively, and are used to switch the receiving / transmitting path of the antenna left / right rotation signal to achieve polarization switching. The beacon machine (6) works with the modem M board (2) and the Ka flat panel antenna (1) to calibrate satellite signals and assist in automatic satellite alignment.

2. The small-aperture Ka-band automatic flatbed portable station with integrated full network connectivity module according to claim 1, characterized in that, The full network compatible module (7) supports: It supports five modes: LTE-TDD / LTE-FDD / TD-SCDMA / WCDMA / GPRS, is compatible with multiple networks, and features automatic network selection, seamless handover, and diversity reception technology. It can receive signals simultaneously through multiple antennas to reduce the bit error rate.

3. The small-aperture Ka-band automatic flatbed portable station with integrated full network connectivity module according to claim 1, characterized in that, The outer shell of the antenna housing (9) and the Ka flat panel antenna (1) are made of magnesium-aluminum alloy AZ31B, and the main material of the automatic bracket (10) is 6061-T6 aluminum alloy.

4. The small-aperture Ka-band automatic flatbed portable station with integrated full network connectivity module according to claim 1, characterized in that, The ACU control board (4) has the following functions: providing power to each module inside the antenna housing (9), providing an external debugging port for the modem board (2), providing a control interface for the automatic bracket (10), and realizing multi-network port data exchange; the antenna housing (9) is also provided with 2 external debugging network ports and 4 full-network mobile signal antenna connection ports.

5. A small-aperture Ka-band automatic flatbed portable station with integrated full network connectivity module as described in claim 1, characterized in that, The satellite signal processing flow of the device is as follows: After the Ka flat panel antenna (1) receives the satellite signal, it is down-converted and amplified by the LNB signal receiving module (3), and then transmitted to the modem board (2) after the beacon machine (6) calibrates the signal and demodulates it into a network signal; the local external signal is demodulated into a high-frequency satellite signal by the modem board (2), and then up-converted and amplified by the BUC signal transmitting module (5) and transmitted to the satellite by the Ka flat panel antenna (1).

6. A small-aperture Ka-band automatic flatbed portable station with integrated full network connectivity module as described in claim 1, characterized in that, The workflow of the full network module (7) includes: after the device starts up, the full network module (7) automatically scans the surrounding cellular network signals and identifies available operators and signal strength, while the satellite module completes satellite alignment and network access; the core control unit determines the link priority according to the preset strategy; when the quality of the main link degrades, the core control unit triggers dynamic link switching, the full network module (7) and the satellite module exchange status information through the API interface, and the protocol conversion unit encapsulates the data into a format suitable for the target link; through the traffic priority scheduling algorithm, key business data is transmitted first to ensure QoS.

7. A small-aperture Ka-band automatic flatbed portable station with integrated full network connectivity module as described in claim 6, characterized in that, The dynamic link switching includes mobile signal switching and satellite signal switching; the triggering conditions for mobile signal switching are: Received Signal Strength Indicator (RSSI) greater than -96 dBm, Signal-to-Noise Ratio (SNR) greater than 15 dB, and Long-Term Average Bit Error Rate (BER) less than 10⁻⁻⁴. 6 The link performance weighted score exceeds 80 points; the trigger conditions for satellite signal switching are: the mobile signal RSSI is below -96dBm for 5 consecutive seconds, the mobile network latency exceeds 500ms and the jitter is greater than 100ms, the device is in a preset mobile network coverage blind zone, or the user manually selects the "satellite priority" mode.

8. A small-aperture Ka-band automatic flatbed portable station with integrated full network connectivity module as described in claim 7, characterized in that, During the mobile signal handover process, the antenna completes the parameter reconstruction process as follows: Polarization adjustment: By controlling the feed phase of the cross-grid radiating elements, the switching from satellite communication circular polarization to mobile communication linear polarization is achieved, reducing polarization loss ( The formula for calculating ) is: ； Where ρ is the axial ratio; Radiation mode reconstruction: Adjusting the excitation amplitude and phase of the array elements, the reconstructed antenna gain ( The formula for calculating ) is: ； in, For maximum gain, For mobile mode beamwidth, For satellite mode beamwidth; Frequency reconfiguration: Frequency adaptation and impedance matching are achieved through tunable matching networks and switched filter banks, resulting in changes in frequency switching efficiency. It can be estimated as follows: ； in, For satellite frequencies, For mobile frequency, Here, Q is the center frequency, and Q is the quality factor.

9. A small-aperture Ka-band automatic flatbed portable station with an integrated full network connectivity module as described in claim 7, characterized in that, Link budget verification must be completed before the satellite signal switching, including: Acceptance quality factor (G / T): ； in, For receiving gain, Antenna noise temperature, The receiver noise temperature; Equivalent Isotropic Radiated Power (EIRP): ； in, For transmission power, For transmit gain, This refers to feeder loss; Carrier-to-noise ratio (CNR) ): ； in, For the EIRP satellite, Here, k represents the downlink path loss, and k is the Boltzmann constant.

10. A small-aperture Ka-band automatic flatbed portable station with integrated full network connectivity module as described in claim 1, characterized in that, The satellite alignment and tracking process of the automatic support (10) includes: Coarse alignment: Calculate the satellite azimuth / elevation angle based on GPS position and digital compass direction, drive the Ka flat panel antenna (1) to point to the predicted position, and use the attitude sensor to compensate for the tilt of the mounting platform; Beacon search: Within a range of ±5° around the predicted location, a spiral scan is performed in steps of 0.2°, with a 100ms pause at each step to detect the satellite beacon signal strength; Fine tracking: After capturing the beacon, switch to closed-loop tracking mode and use single-pulse amplitude comparison method or step tracking method to maintain pointing accuracy, achieving a static accuracy of 0.2° and a dynamic accuracy of 1°.

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