59 results about "High-throughput satellite" patented technology

The invention discloses a high-throughput satellite communication terminal system, which comprises a radio frequency channel unit, a signal processing unit, a terminal processing unit, a power supply management unit and an anti-electromagnetic interference module, and is characterized in that the radio frequency channel unit carries an agile device and a power amplifier and is used for realizing bidirectional conversion between a baseband signal and a radio frequency signal; communication frequencies of a Ka frequency band, a valley value of 5GHz and a peak value of 40GHz are supported, a zero intermediate frequency receiver structure is adopted, image frequency interference is eliminated through one-time frequency conversion to a baseband, and a high-integration design that a radio frequency signal directly enters a frequency mixer after passing through an antenna, a radio frequency filter and a low-noise amplifier is realized. According to the high-throughput satellite communication terminal system, the coverage problem of traditional communication in a blind area of a power grid is solved, safe, efficient and stable transmission of power data is realized, the emergency communication capability and the equipment environment adaptability are remarkably improved, and key technical support is provided for constructing global visual monitoring and intelligent scheduling of the digital power grid.

The invention discloses a satellite communication terminal shared by a high-throughput satellite and a low-orbit constellation. The satellite communication terminal comprises a radio frequency cabin and a baseband cabin which are rotationally connected with each other, an active phased array transceiving antenna surface, a frequency converter, a power divider and a combiner are integrated in the radio frequency cabin; a high-throughput baseband, a low-orbit baseband, a carrier signal receiver, an upper computer, an inertial navigation unit and a Beidou antenna module are integrated in the baseband cabin; according to the invention, the base band of the high-throughput satellite and the base band of the low-orbit constellation are integrated and designed in the same terminal, the advantages of the two satellites are brought into full play, the coverage is wide, the delay is low, the burden of front business personnel is reduced, and network-free obstacles are eliminated; the problem that the use rate of a high-throughput satellite communication terminal is high is solved, and the communication cost is reduced by one order of magnitude in an area covered by a low-orbit satellite. The problems that low-orbit constellation networking construction is lagged and all areas cannot be covered are solved, and in the area without low-orbit constellation coverage, a user can be temporarily switched to a high-throughput satellite to keep in the network all the time.

The invention provides an emergency information service system and method based on fusion of satellite communication and ground mobile communication, and the system comprises a high-throughput satellite fixed station terminal which employs a Ku wave band 0.6 m VSAT terminal, integrates an ACU and an MODEM, and is provided with a three-axis structure and a carbon fiber antenna. The ground mobile communication subsystem comprises a 4G skin base station, a security gateway and a signaling gateway; the multi-WAN port routing equipment realizes dynamic load balancing of a satellite and a ground broadband; the emergency power supply system adopts a generator and a charge pal to form three-stage power supply; the network management monitoring system supports remote configuration and A I optimization. The method comprises the steps of disaster monitoring, system activation, network establishment, signal coverage, communication service and management maintenance. Through satellite and ground communication fusion and in combination with A I-driven network optimization, a reliable communication network is quickly established in an emergency scene, the method has the characteristics of wind load resistance, low time delay, intelligent scheduling and the like, and the emergency communication guarantee capability is remarkably improved.

The invention provides a system and a method for switching main and standby user plane network elements of a core network of a high-throughput satellite system. The system and the method are used for solving the problem of split brain between main and standby equipment and the problem that the context of a user plane and the control plane network elements are inconsistent after the standby equipment is converted into the main equipment. Comprising an MME (Mobility Management Entity), a Redis database, an XGW (Extensible Gateway) and a watchdog thereof, the MME carries main and standby state attributes through a heartbeat message to specify the main and standby states of XGW equipment, and the XGW receives the indication of the MME to set and switch the main and standby states. And the MME stores a user control plane and a user plane context in a redis library, after the XGW standby is switched to the master, the MME performs access information user plane context recovery on the XGW standby, the master XGW reconstructs the user plane context, and the user service is recovered to be normal. When the MME is started for the first time, all the XGWs are in a standby state, multiple threads initiate heartbeat to all the XGWs at the same time, the XGWs which receive heartbeat responses first by the MME conduct standby-to-main conversion, and the other states are standby.

The invention provides a special high-throughput satellite communication terminal for electric power, and relates to the technical field of electric power communication, and the special high-throughput satellite communication terminal comprises a baseband processing module which is used for carrying out differential encryption processing on different types of electric power data; the high-throughput satellite radio frequency module is used for suppressing sidelobe interference while realizing automatic satellite beam tracking through a beam forming algorithm during satellite communication, and calculating the optimal transmitting power through a self-adaptive power regulation algorithm; the communication transmission module is used for presetting a data priority based on a priority mapping table during data transmission and preempting satellite beam resources according to the data priority; the electric power Internet of Things protocol adaptation layer is used for realizing conversion between an electric power dedicated protocol and a satellite IP protocol, differential coding compression of electric power data and interrupted transmission in a link; and the beam optimization module is used for dynamically optimizing the beam pointing angle based on the satellite orbit parameters and the terminal geographic position. According to the scheme, the coverage degree of electric power communication in remote areas can be improved, and the safety and reliability of data transmission are improved.

The invention discloses a shipborne dual-frequency satellite fusion network controller and a dual-frequency fusion satellite communication system, and relates to the field of communication, and the shipborne dual-frequency satellite fusion network controller comprises a Ka management interface which is used for obtaining satellite finding parameter information of a preset Ka modem; the Ku management interface is used for acquiring satellite finding parameter information of a preset Ku modem; the processing module is used for executing a preset switching logic, determining a switching result based on the preset switching logic when the preset switching logic is executed, and processing the star finding parameter information based on the switching result to obtain a standard protocol parameter; and the ACU interface is used for forwarding the standard protocol parameters to a controller of the dual-frequency antenna. The switching between the Ka baseband network and the Ku baseband network is realized, and the problems that the Ku large-beam rate cannot meet the user requirements and the Ka high-throughput satellite network cannot form global coverage are solved.

The invention discloses an implementation method suitable for a high-throughput satellite communication hybrid duplex system. The method comprises the following steps: acquiring dual-network statistical basic data including end station back-and-forth propagation time delay distribution and phased-array antenna receiving and transmitting switching characteristics; constructing a dual coupling time planning mathematical model taking starting and ending moments of time windows of an original network and a mirror image network as optimization variables, and solving an optimal time parameter under the condition of satisfying physical constraints such as time delay accessibility, antenna switching safety and master station receiving zero overlap; and the master station broadcasts a time slot configuration instruction to cooperatively control the end stations of the whole network to execute hybrid duplex transceiving. A closed-loop feedback mechanism based on local observation of an end station is also introduced, and time delay drift is estimated and model input is corrected by using network clock reference information. According to the method, static configuration is converted into dynamic mathematical optimization solution, zero-conflict hybrid duplex communication under complex physical constraints is achieved, and the satellite spectrum resource utilization rate and the system operation stability are improved.

The invention relates to an unmanned aerial vehicle communication link flexible deployment system based on a Ka-band high-throughput satellite, which is used for an unmanned aerial vehicle to quickly establish a satellite flux link in a complete task period and flexibly deploy frequency bandwidth resources of the Ka-band high-throughput satellite, and comprises an unmanned aerial vehicle task planning module used for automatically selecting a planning result for an unmanned aerial vehicle airborne satellite communication station; the high-throughput satellite communication link calculation module is used for performing high-throughput satellite link calculation; the high-throughput satellite network resource management module is used for applying for required resources from a satellite operation center and formulating a network resource allocation strategy; the high-throughput satellite beam map module is used for providing accurate high-throughput satellite beam map support for each module; the high-throughput satellite network mobility management module is used for providing cross-beam automatic switching support for the mobile terminal; and the carrier wave monitoring interference checking module is used for continuously carrying out communication interference monitoring when the unmanned aerial vehicle executes the task and reporting an abnormal monitoring result to the satellite operation center in real time.

A system for monitoring operational status and detecting faults in a satellite system is disclosed. The system may include a processor and a memory storing instructions, which when executed by the processor, cause the processor to select, from a plurality of terminals, a subset of terminals to perform system operation tests. The processor may select the subset of terminals using at least one of a semi-static pre-qualification technique and a dynamic pre-qualification technique. The processor may also perform system operation tests using the selected subset of terminals. The processor may further report results from the system operation test using the selected subset of terminals. In some examples, the processor may also determine potential system operation issues based on the results of the system operation tests, generate an alarm or notification based on the determination of potential system operation issues, and / or abort testing or delay testing to a future testing cycle.

The invention provides an unmanned aerial vehicle dual-mode measurement and control system and method based on a high-throughput satellite, and relates to the technical field of unmanned aerial vehicle communication, and the system comprises an unmanned aerial vehicle platform, the high-throughput satellite, a ground gateway station of the high-throughput satellite, and a ground control station of the unmanned aerial vehicle platform. According to the system, a high-throughput satellite is adopted to solve the bandwidth requirement problem when a large number of unmanned aerial vehicles communicate at the same time, a ground gateway station of the high-throughput satellite is configured with a TDMA service carrier, a TDMA network control carrier, a CDMA service carrier and a CDMA network control carrier, forward remote control instructions are sent through a CDMA service channel in the system, and the bandwidth requirement of the unmanned aerial vehicles is met. According to the technical scheme of the invention, the TDMA service channel is used for returning the reverse measurement and control data, namely, a CDMA / TDMA dual-mode measurement and control method is adopted, so that the anti-interference performance of a high-throughput satellite forward link is improved, the technical problem that the communication of the unmanned aerial vehicle is easy to interrupt is avoided, and the reliability of the satellite communication system of the unmanned aerial vehicle is improved.

The application discloses a high-throughput satellite access method and system based on 5G NR. The method is as follows: a beacon signal and a random access channel are arranged on a global signaling beam of a high-throughput satellite; a satellite terminal requests a service beam service of the high-throughput satellite through the random access channel; all satellite terminals share the random access channel, and resource competition is realized through a random backoff competition mechanism; the satellite terminal adjusts an antenna pointing direction and reports user position information by using the global signaling beam; a satellite system adjusts a variable service beam pointing direction according to the user position information, and provides access service for the user; the satellite system provides a 5G broadcast signal for the user through the service beam, and completes broadcast reception and random access of the 5G satellite system. The system realizes the high-throughput satellite access method based on 5G NR. The application realizes satellite terminal access based on 5G standards without affecting an existing synchronous orbit high-throughput satellite architecture.

The invention discloses a high-throughput satellite ground network alarm monitoring method, which comprises the following steps: acquiring heterogeneous data of a ground network subsystem, and carrying out standardization processing on the heterogeneous data; processing the standardized data based on an alarm model to obtain alarm information; wherein when the heterogeneous data is subjected to standardization processing, the heterogeneous data is standardized into a structured tuple R = (TUTC, S, D and Draw), the TUTC represents a UTC millisecond timestamp, the TUTC = LocalTime + delta T, the delta T is time zone offset, the S represents Sourcetype, the D represents the analyzed structured data, and the Draw represents original data. Based on multivariate data fusion analysis, full-link situation presentation of high-throughput satellite network operation quality is realized, abnormal states of satellite-ground subsystem equipment and transmission links are accurately positioned, the service fault discovery time and the problem troubleshooting period are shortened, and the network service response efficiency is improved.

The application discloses an implementation method suitable for a high-throughput satellite communication hybrid duplex system, which acquires double-network statistical basic data containing end station round-trip propagation delay distribution and phased array antenna transmission-reception switching characteristics; constructs a dual-coupling time planning mathematical model with original network and mirror network time window start and end time as optimization variables, and solves optimal time parameters under the conditions of satisfying physical constraints such as delay reachability, antenna switching safety and main station reception zero overlap; and the main station broadcasts time slot configuration instructions to cooperatively control all network end stations to perform hybrid duplex transmission-reception. The application also introduces a closed-loop feedback mechanism based on end station local observation, estimates delay drift by using network clock reference information, and corrects model input. The application realizes zero conflict hybrid duplex communication under complex physical constraints by converting static configuration into dynamic mathematical optimization solution, and improves satellite spectrum resource utilization rate and system operation stability.

The application provides an emergency information service system and method based on satellite communication and ground mobile communication fusion, the system comprises: a high flux satellite fixed station terminal, a Ku band 0.6 meter VSAT terminal is adopted, an ACU and a MODEM are integrated, a three-axis structure and a carbon fiber antenna are provided; a ground mobile communication subsystem, comprising a 4G skin base station, a security gateway and a signaling gateway; a multi-WAN port routing device realizes dynamic load balancing of satellite and ground broadband; an emergency power supply system is composed of a generator and a power bank to form a three-level power supply; a network management and monitoring system supports remote configuration and AI optimization. The method comprises the steps of disaster monitoring, system activation, network establishment, signal coverage, communication service and management and maintenance. The application combines AI driven network optimization to quickly establish a reliable communication network in an emergency scene through satellite and ground communication fusion, has the characteristics of wind load resistance, low time delay, intelligent scheduling and the like, and significantly improves the emergency communication guarantee capability.

The present invention discloses a power data monitoring system based on three network operators and high-throughput satellite communication, belonging to the technical field of power data transmission. It includes a monitoring controller, a data reading unit, a data transmission unit, a general definition module and a power production area business platform, the monitoring controller is connected with a temporary storage device; the data reading unit includes a dial switch connected to the monitoring controller, and the monitoring controller is also communicatively connected with an interface reading module and a wireless networking reading module; the data reading unit is communicatively connected with a data acquisition device of a power node; the power data monitoring system based on three network operators and high-throughput satellite communication of the present invention can ensure the integrity and timeliness of power node monitoring data transmission; and can adapt to each power node, and can assist the power production area business platform to automatically generate power data types for power node monitoring.

The embodiments of the present application disclose a fast satellite acquisition method and application applied to a Ka high-throughput satellite portable terminal. The fast satellite acquisition method applied to the Ka high-throughput satellite portable terminal includes the steps of: obtaining the longitude and latitude of the current position of the Ka high-throughput satellite portable terminal, the tilt angle of the antenna of the Ka high-throughput satellite portable terminal relative to the horizontal plane, and the azimuth angle of the antenna; retrieving satellite beam map information and satellite acquisition parameter information to obtain the corresponding satellite beam number and satellite acquisition parameters according to the longitude and latitude of the current position; controlling the deployment of the antenna and executing the satellite acquisition process according to the longitude and latitude, the tilt angle and azimuth angle of the antenna, and the satellite beam number and satellite acquisition parameters; when receiving a satellite carrier signal, converting the satellite carrier signal into a corresponding voltage value, and when the voltage value exceeds a preset threshold, executing a tracking process, and when the voltage value reaches the maximum, completing satellite acquisition.

This invention relates to the field of satellite communications and discloses a high-throughput satellite communication system access method for helicopter user stations. The invention designs a high-throughput satellite communication system for helicopter user stations, accessing the high-throughput system through a TDMA shared control channel, and combining it with anti-rotor obstruction technology based on low-code-rate deep interleaving to achieve medium-to-high-speed service communication for helicopters. This solves the rotor obstruction problem of helicopter platforms, enabling simultaneous, rapid, and stable access to the high-throughput satellite communication system for helicopter clusters and other user platforms. It also provides centralized network management, dynamic resource control, and on-demand access and handover functions for helicopter clusters under the high-throughput satellite communication system.

1. The name of this design product: high-orbit and low-orbit integrated satellite communication terminal. 2. Purpose of this design product: Communication terminal for high-throughput satellites and low-orbit constellations to access the Internet. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

A system and method for managing handoff in software-defined wide area network (SD-WAN) in aero or mobility situations, where terminal is capable of switching across multiple high throughput satellite (HTS), low-latency wireless spot beams and cell. The system receives at least one packet for upstream / downstream transmission over communication network. The system classifies packets based on data types associated with packets and assigns wireless path associated with first network transport modem for upstream / downstream transmission of packets classified as interactive traffic data type. Furthermore, system assigns satellite path associated with second network transport modem for upstream / downstream transmission of packets classified as bulk traffic data type. Further, system estimates available capacity for upstream / downstream transmission of packets associated with first and / or second network transport modem. Furthermore, system adjusts rate limited priority queue for continuity of TCP connection corresponding to packets, responsive to change in network conditions of communication network during the upstream / downstream transmission.

The present invention discloses a flexible adjustment method for high-throughput satellite beam coverage area, including the following steps: S1. Input the capacity demand, geographical location and priority of each user; S2. Confirm the beam center according to the user priority and geographical location; S3. Cluster users according to the beam center. In the present invention, through the coverage area adjustment method based on the active beam forming network, the beam coverage area is dynamically adjusted as the user demand changes. For the hot spot area, a narrow beam is used for coverage, and for the non-hot spot area, a wide beam is used for coverage, and the resource utilization rate of the system is high; through the user grouping method based on capacity matching, the beam width and beam capacity are calculated in real time during the user grouping process, and the beam width is designed considering the matching degree of the user capacity demand; through the high-throughput satellite beam coverage area adjustment method, the position of the beam center is determined by introducing the user priority, which effectively avoids the influence of the initial input on the final solution.

The present invention provides a high-throughput satellite frequency allocation method based on carrier-to-interference-noise ratio calculation and optimization, comprising randomly generating a plurality of feasible solutions for frequency allocation under constraints such as different frequencies of adjacent carriers and bandwidth requirements of each carrier as an initial population, performing frequency optimization allocation based on a differential evolution algorithm, iteratively selecting individuals with the best system capacity matching rate as a system frequency allocation plan through operations such as mutation and crossover, and in the iterative adjustment process of the frequency allocation plan, considering the influence of the frequency plan adjustment on the system carrier-to-interference-noise ratio, performing dynamic quantitative analysis on the system carrier-to-interference-noise ratio based on statistics, and then accurately predicting the real-time system capacity matching rate, finding a nearly optimal frequency allocation plan, and improving the effective capacity of the satellite and resource utilization.

The invention provides a high-throughput satellite transponder layout method for link optimization. A feed source array of a multi-beam antenna is arranged on the east side or the west side of a satellite and is close to an opposite floor; a plurality of low-noise amplifiers and front-end waveguide switch assemblies are arranged in a first quadrant and a second quadrant of the inner surface of the ground plate in a partitioned mode to form independent backup rings; a heat expansion plate with an aluminum honeycomb interlayer is arranged between the bottom surface of the low-noise amplifier and the ground facing plate, and a U-shaped heat pipe is pre-buried in the heat expansion plate; the heat expansion plate is connected with the inner surface of the load cabin south plate or the load cabin north plate through the externally-attached heat pipe, so that heat is conducted to the load cabin south plate or the load cabin north plate from the heat expansion plate through the externally-attached heat pipe for radiation and heat dissipation. The invention also provides a high-throughput satellite transponder. Therefore, the method has the technical effects of flexibility, reliability, light weight cost of a thermal control scheme, low link loss and high space utilization rate.

The application relates to the field of satellite communication and discloses a high-throughput satellite communication system access method of a helicopter user station. The application designs a high-throughput satellite communication system of the helicopter user station, accesses the high-throughput system through a TDMA shared control channel, and realizes medium and high-speed service communication of the helicopter by combining an anti-rotor shielding technology based on low-code-rate deep interleaving, solves the rotor shielding problem of the helicopter platform, realizes fast and stable access of a helicopter cluster and other user multi-platform to the high-throughput satellite communication system at the same time, and realizes the functions of centralized network management of the helicopter cluster, dynamic management and control of resources, and on-demand access, handover and the like under the high-throughput satellite communication system.

The invention provides a communication service simulation system and method in a high-throughput satellite simulation network. The communication service simulation system and method are used for simulating data packet circulation among satellite terminals, satellite base stations, core network nodes and the nodes. According to the method, after a data packet passes through a high-throughput satellite communication simulation path and superposes path characteristics corresponding to the high-throughput satellite communication simulation path, terminal application quality testing is carried out, and resource occupation and application quality under different environment conditions are determined based on application quality testing results, so that the simulation accuracy and confidence of a control flow path can be improved, and the simulation efficiency of the control flow path is improved. Simulation accuracy and confidence of a service flow path, and simulation accuracy and confidence of a satellite simulation network service flow in link flow, time delay and error codes.

The application discloses a kind of multi-beam calibration methods suitable for high-throughput satellite transceiving separate antenna, comprising the following steps: S1.calibration station site selection design;S2.receiving and transmitting antenna feed design;S3.under the participation of two calibration stations, receiving and transmitting two pairs of antenna time-sharing calibration.In the application, for high-throughput satellite transceiving two pairs of separate antennas, an uplink calibration scheme is proposed, and two pairs of antennas can share calibration stations through time-sharing calibration, which saves the construction cost of calibration stations;For the uplink calibration scheme of the transmitting antenna, the time delay of ground processing and satellite-ground propagation in the downlink calibration scheme is reduced, and the real-time of calibration is improved;By constructing two cooperative calibration stations, the pointing error of other user beams outside the calibration beam caused by satellite yaw error can be effectively calibrated.

The invention discloses a high-throughput satellite communication system control surface pressure test system and method, and relates to the technical field of satellite communication. The invention discloses a high-throughput satellite communication system control plane pressure test system and method for solving the problems that a high-throughput satellite communication system is huge, the number of far-end stations is large, the data size of a control plane is large, the process is complex, and system networking scale test verification cannot be effectively carried out conveniently. A set of complete semi-physical pressure test environment and test method is established by constructing a simulation channel environment and simulating a control plane interaction process and protocol between gateway station channel equipment and a far-end station; according to the invention, the testing of the user access quantity, the high-capacity service request, the adaptive code modulation (ACM) capability and the like of the high-throughput satellite communication system under the control face is realized. The method can quickly verify the capability index of the whole satellite communication system, and has the advantages of hybrid networking with a real remote station, vivid channel environment, simple configuration, easy deployment, high efficiency, low cost and the like.

The invention relates to the field of high-throughput satellite communication and stratospheric airships, and discloses a stratospheric airship measurement, control and data transmission integrated terminal and a cross-beam switching method, and the cross-beam switching method comprises the steps: judging whether the terminal is located in an alternating region covered by a plurality of beams or not; measuring a terminal forward signal-to-noise ratio of the alternating area, and comparing the terminal forward signal-to-noise ratio with a threshold A; if the forward signal-to-noise ratio of the terminal is lower than a threshold value A, selecting a target wave beam according to the meteorological detection information and the flight direction and the flight speed of the airship; determining whether to switch the current beam to a target beam according to whether the current beam satisfies a switching condition; the terminal is installed on the airship. The invention provides a measurement, control and data transmission integrated terminal suitable for a stratospheric airship. According to the cross-beam switching method for the terminal, the forward signal-to-noise ratio of the terminal is preferentially taken as an important basis for beam switching, so that the problem of beam ping-pong switching caused by roundabout change of a flight path of an airship in a beam overlapping area and inaccurate EIRP reference value of a high-throughput satellite is effectively reduced.

The present invention discloses a high-throughput satellite intelligent terminal system, including: a module layer, including multiple functional modules, providing the intelligent terminal with status data for realizing the specified function; a control layer, acquiring data from the module layer for processing to control the intelligent terminal to realize the specified function, and sending configuration parameters to the module layer to configure each functional module of the module layer through the configuration parameters; an edge processing layer, acquiring data from the control layer for edge processing, and sending the processed data to the cloud or application end, acquiring configuration instructions from the cloud or application end, and configuring through the configuration instructions. By introducing the application end, it is convenient for users to interact with the intelligent terminal and have a better use experience. By introducing the cloud platform, it is convenient for operation and maintenance personnel to remotely monitor and manage terminal equipment. In addition, users can realize their different needs based on open terminals.

The invention provides an aero-engine real-time intelligent health management double-platform system based on Beidou and a high-throughput satellite. The aero-engine real-time intelligent health management double-platform system comprises an aero-engine airborne system and a ground station system. The aero-engine airborne system generates a communication message and transmits the communication message to the Beidou satellite and the high-throughput satellite system in real time, wherein the communication message comprises positioning information from the Beidou satellite and health diagnosis information which is generated by the aero-engine airborne system and is related to the aero-engine; the ground station system receives and analyzes the communication message in real time through a high-throughput satellite, carries out rapid and accurate health management diagnosis and prediction on the aero-engine, and provides information of engine parts needing to be maintained and repaired in advance for a maintenance support system of an airline company for preparation in advance.

The utility model relates to high-throughput satellite terminal test equipment based on an automatic test production line, which is used for replacing part of existing test procedures and realizing automatic test. Comprising an upper part and a lower part, the upper part is used for installing a plurality of high-throughput satellite to-be-tested terminals and is provided with three types of interfaces, namely a power supply fixing seat, a network port fixing seat and an SMB fixing seat, and the three types of interfaces are used for being connected with corresponding ports on the to-be-tested terminals respectively; the lower part is a main body structure and is provided with a plurality of switch modules, two microstrip power dividers and a relay control panel, cascade ports of the plurality of switch modules are mutually connected to realize information intercommunication, one switch module serves as an external port and is used for carrying out information transmission with external equipment through a network cable, and the other switch module serves as an external port and is used for carrying out communication with the external equipment through a network cable. One microstrip power divider corresponds to radio frequency output ports of a plurality of to-be-tested terminals, the other microstrip power divider corresponds to radio frequency input ports of a plurality of to-be-tested terminals, and the relay control panel receives a control instruction of the upper computer and controls power-on and power-off of each to-be-tested terminal.