112 results about "Satellite testing" patented technology

The invention relates to a satellite universal automatic testing platform and a data interaction method thereof, aims to solve the technical problem that existing satellite test equipment has poor universality and a low automation degree, and belongs to the technical field of satellite testing. The satellite universal automatic testing platform provided by the invention consists of a peripheral equipment layer, an intermediate service layer and a user terminal layer, wherein the peripheral equipment layer comprises measurement and control system automatic testing equipment, control system automatic testing equipment, CAN (Controller Area Network) monitoring equipment, plug-failure signal monitoring equipment and solar cell array simulating equipment, and is used for making a response to aremote control command of a comprehensive testing server, uploading the remote control command to a satellite, finishing signal collection of the satellite data simultaneously, transmitting a collected signal to the comprehensive testing server to perform signal processing and data storage. According to the testing platform and a data interaction way thereof, the rapid testing demand at each stageof the satellite is met; a system of satellite distribution test control and comprehensive integration management is formed, and universal and automatic satellite testing is realized. The satellite universal automatic testing platform has the advantages of high universality and high automation degree.

Disclosed is a satellite power supply health condition tracking and detecting method based on intelligent interpretation. A basic test knowledge base is firstly built, telemetry parameters of a power supply subsystem are collected, relevant criteria are summarized, the telemetry parameters are collected and processed, initial health condition checking is completed, health condition checking is implemented, and finally fault judgment and emergency operation processing are carried out according to the checking result. The power supply safety in the satellite testing process is monitored in real time, faults occurring in a test are analyzed and located, the relevant operation of alarming and power failures is executed in an emergency, misjudgment and wrong judgment of manual monitoring are avoided, fault losses are reduced to the greatest degree, and reliability and safety in the testing process are improved.

The invention provides a data transmission antenna whole-satellite testing method based on a minisatellite information system. At first, orbital data are input to a satellite attitude control system and a GPS dynamic simulator, by regulating orbit parameters of the satellite attitude control system, controlling start-up time of the GPS dynamic simulator and satellite-arrow separating time, and combining a program control command and a program control data block sequence, time information, orbit information and attitude information of the satellite attitude control system, a GPS receiver and a satellite task distribution system are completely synchronized, testing data are obtained by controlling a data transmission antenna to carry out ground station tracking, and finally, by comparing theoretical data and the testing data of antenna tracking, actual antennal tracking angle errors under different orbit conditions and different satellite attitudes are obtained. According to the data transmission antenna whole-satellite testing method, the orbit and time information state of a minisatellite are accurately simulated, testing of the data transmission antenna under the whole-satellite state of the minisatellite is achieved, and the method is applied to other types of minisatellites at present.

The invention discloses a ground automatic testing instrument device with a satellite relay trace function and a testing method thereof. The testing method comprises the following steps: a signal source generates a single carrier signal with assigned frequency and power, two signals with the same frequency and regular phase difference are generated after the single carrier signal is subjected to power division by a power divider, and the two signals are sent to a to-be-tested satellite after passing through a programmable attenuator and a programmable phase shifter respectively; the to-be-tested satellite drives an antenna simulator to rotate according to the input beacons and difference signals, and transmits downwards satellite state parameters in real time; downlink remote testing data is sent to a satellite testing server after remote testing, receiving and demodulation so as to complete the processing of satellite remote testing data, and the satellite remote testing data is sent to a control computer through an LAN (local area network) network; the control computer receives the satellite remote testing data in real time, parameters of the programmable attenuator and the programmable phase shifter are set according to the attitude of the antenna simulator in remote testing, and the corresponding beacons and the difference signals are output in real time; and the above testing steps are repeated circularly until the antennal simulator indicates that a relay star is aimed, and the relay trace process is completed.

The invention relates to a parallel and automatic integrated testing system for satellites. The parallel and automatic integrated testing system comprises a ground testing equipment module, an automatic testing module and a data storage management module, wherein the data storage management module is connected with the automatic testing module through a data communication protocol for both-way communication, and the automatic testing module is connected with the ground testing equipment module through the data communication protocol for both-way communication. The parallel and automatic integrated testing system for the satellites realizes integration of integrated testing management, design, implementation and application for the satellites, improves the systematization, informatization and automation of satellite testing work, and can effectively increase the testing efficiency, effectively control quality risks in a testing process, increase the application analysis value of testing data and realize substantial saving of labor cost and management cost. The system is quite applicable to batch satellite testing, and parallel design and implementation on various layers of the integrated testing system for the satellites are realized.

The invention discloses a rule-based satellite telemetry data analysis system. The system comprises a rule editing system and an online analysis subsystem, wherein the rule editing system serves as aninput port of diagnosis rules to provide a graphic rule editing mode and a script rule editing mode and write association judgment diagnosis rules, condition judgment diagnosis rules, mode judgment diagnosis rules, mathematic and logic operation diagnosis rules and other diagnosis rules for one-dimensional telemetry and multi-dimensional telemetry through associated satellite telemetry parameters, and the rule editing system is provided with a rule base; and the online analysis subsystem reads the rules compiled by a user from the rule base and loads the rules into an analysis and judgment process, the analysis process performs analysis and diagnosis on real-time telemetry data according to the rules by receiving telemetry physical quantity data from the Internet, the judgment result is written into a result database, and the judgment result is sent out through the Internet. Through the system, a satellite test data judgment rule establishing tool is provided, and therefore the user can establish and modify the rules conveniently and quickly.

The invention relates to a micro / nano satellite universal testing system based on a PXI bus, wherein the system belongs to the technical field of satellite testing. The testing system comprises a PXIhardware subsystem and an upper computer in which LabVIEW software is installed. The PXI hardware subsystem performs communication with the upper computer and a tested object through a serial port busand a CAN bus. The PXI hardware subsystem comprises a PXI cabinet, a master controller, a signal conditioning module, a data acquisition module and a CAN communication module. The master controller,the signal conditioning module, the data acquisition module and the CAN communication module are integrated in the PXI cabinet and are connected with the PXI cabinet through a PXI cabinet backboard bus. The master controller controls and schedules each functional module board through a PXI / PXIe blended backboard bus. The micro / nano satellite universal testing system has advantages of high versatility, high system software degree, and high testing system architecture flexibility. The micro / nano satellite universal testing system can satisfy different testing requirement and quick and low-cost developing characteristics of each module in the developing period of the micro / nano satellite and furthermore has automatic testing capability.

The invention discloses a whole-satellite star sensor testing system and method based on an optical signal. The data transmission the optical signal is realized by installing a dynamic satellite modeat a star sensor optical probe part when performing the whole-satellite testing, thereby accomplishing open-circuit testing and close-circuit testing of the star sensor by cooperating with a ground testing system. Through the method disclosed by the invention, a channel to a control computer from the star sensor optical probe can be completely checked without skipping any part, the high-precisionwhole-satellite control subsystem close-circuit testing regarding the star sensor as the input can be realized through the cooperation a data management uplink instruction injection command and a dynamics instruction, thereby precisely contrasting the input and output of the star sensor; an operation condition the star sensor in the satellite-sensitive control mode can be examined so as to solve aproblem that the dynamic response of a transmission channel, to the control computer from the optical probe, of the star sensor cannot be comprehensively verified in the previous whole-satellite testing.

The invention provides a satellite telemetry parameter allocation and scheduling method, including: step 1, the upper computer collects the whole satellite telemetry parameters from the lower computer, and the collection period is equal to the operation cycle of the upper computer; step 2, designs the telemetry frame format, and divides into fixed telemetry areas In the subcontracting telemetry area, the upper computer performs grouping according to the format of the telemetry frame; step 3, design a large table of telemetry data frames, and the upper computer performs grouping and downloading of telemetry data according to the large table of telemetry data frames. The present invention realizes the dynamic scheduling capability of satellite downlink telemetry data through the method of centralized allocation of telemetry parameters of the satellite upper computer, and can conveniently increase the downlink rate of the telemetry parameters of the tested system through the way of uplink injection during the satellite test process, It can more effectively judge the state of the test system, and can focus on downloading different telemetry parameters according to the different stages of the satellite in orbit, and realize the ability to download key telemetry parameters in different working modes.

The invention discloses a satellite-borne synthetic aperture radar antenna direction diagram obtaining method based on internal calibration data. The satellite-borne synthetic aperture radar antenna direction diagram obtaining method comprises steps of respectively obtaining amplitude phase error data and a typical position antenna sub-array direction diagram of each calibration channel of a satellite-borne synthetic aperture radar antenna calibration network when a ground standalone product is tested, choosing radar working parameters like a suitable bandwidth, a pulse width, etc, obtaining and recording emission / reception pulse calibration signals which are transmitted by each T / R channel on an antenna array plane one by one under a single T / R testing calibrated working mode . The satellite-borne synthetic aperture radar antenna direction diagram obtaining method based on internal calibration data realizes a verification test on a phased array antenna direction diagram performance (near intermediate frequency or in-band average), solves a problem that a traditional radar satellite phased array antenna has no effective assessment means performed on direction diagram performance in each stage of a whole satellite testing, greatly improves testing efficiency of a radar load during a whole satellite stage, and shortens a study cycle of the whole satellite.

The invention relates to a data processing method and device of a satellite testing, operation and control platform, electronic equipment and a computer readable medium. The method comprises the following steps: acquiring satellite data from a target user; performing data authentication on the satellite data; after the data authentication is passed, filtering the satellite data according to a preset rule to generate telemetry data and type data; sending the telemetry data to a service processor for subsequent processing according to a service type; and recombining the type data and sending the type data to a back-end application for subsequent processing. According to the data processing method and device of the satellite testing, operation and control platform, the electronic equipment and the computer readable medium, data security in satellite communication can be guaranteed, testing, operation and control data can be rapidly and effectively subjected to preliminary analysis and sorting, and the subsequent service processing flow is accelerated.

The invention provides a satellite universal testing system data interaction method comprising steps that a testing service system and a testing terminal establishes an interactive service link; and a master control terminal sends an interaction request to the testing service system. Compared with a method in the prior art, the satellite universal testing system data interaction method has beneficial effects of being good applicability and universality, standardizing an internal data interaction way of a satellite testing system, being capable of guiding testing design and research and development of a software data communication part, and greatly increasing a testing system development efficiency; making a conventional testing server be a master control service layer and a data processing service layer, reducing the coupling degree of data communication interaction and data processing, achieving a concise internal data interaction way of the satellite testing system.

The invention discloses a multichannel high-speed data interface conversion module of a customized data transmission protocol, and relates to the satellite ground testing technology field. In order tosolve the problem that in the prior art, customized high-speed parallel interface data information is difficult to obtain in the satellite testing process, the method comprises the steps that 1, a high-performance programmable system-on-chip is adopted for achieving multichannel customized interface protocol data receiving; 2, interface data carrying; 3, data storage and format encapsulation; 4,a lightweight Ethernet protocol stack is transplanted and modified; and 5, data transmission based on the lightweight Ethernet protocol stack. The method has the advantages that the interface protocolis customizable, the data transmission speed is increased by 30%, the number of accessible channels is large, and the like, and high-speed LVDS interface signals can be collected in a specified protocol format and converted into standard Ethernet protocol data to be output to a client.

The invention discloses a top polarity testing and output value fault detection method. The method comprises the following steps: firstly, describing a top mounting matrix; secondly, solving top measurement angular velocity; thirdly, resolving satellite inertial angle speed and top output theoretical value by utilizing rotational angular velocity of the earth; fourthly, solving satellite inertialmeasurement angular velocity; and fifthly, locating a top in a fault state by utilizing multiple combinations of top headers. The method disclosed by the invention has the advantages that top polarityand output value can be conveniently and accurately tested, mutual fault monitoring among tops can be realized, a top whole satellite state testing process can be simplified, requirement on test equipment is lowered, workload is reduced, and the method disclosed by the invention not only can be applied to a top whole satellite testing process but also can be applied to a one machine level and system level testing process.

The invention relates to a satellite test efficiency improving method based on satellite order code word intelligent construction; the method comprises the following steps: defining a remote control order and a parameter format according to a satellite remote control order function and complexity; in an XML coder code word construction script, combining XML language with Lua language to automatically carry out code word generation for satellite remote control order dominant head, source data and checksum, and integrating the code words into a complete order code word. The Lua function can read satellite remote measurement parameters online, and can calculate and process parameters, cannot be directly formed by XML, so as to the order code word; the Lua function can form a test order sequence according to satellite single machine test demand, can remotely control the satellite single machine state, and can compare satellite remote measurement parameters with order valid word preset state parameters, thus completing satellite single machine performance test. The method can reduce labor operation, can improve satellite remote control order generation efficiency and order readability, can reduce error rate, can reduce satellite test time, thus enhancing satellite test intelligent degree and actionability.

The invention discloses a satellite test device and a test method thereof, comprising: a downlink telemetry signal sent by a tested satellite, demodulated by a telemetry demodulator, sent to a satellite test server to complete satellite telemetry data processing, and sent to a control panel through a LAN network Computer: The control computer receives the satellite telemetry data in real time and waits for the test command: the test server sends the satellite test command to the control computer, and the control computer extracts the relevant satellite telemetry parameters of the test item, compares and judges with the preset parameters: if the status matches, call the relevant test The device conducts the indicator test of the project, and reports to the satellite test server after the test: if the status does not match, report that the satellite status is set incorrectly, and reset it. The invention solves the safety defect problem of the existing satellite automatic test system, achieves the beneficial effects of improving the test accuracy and avoiding damage to the equipment on the satellite.

The invention relates to a multi-satellite asynchronous intelligent test system. The multi-satellite asynchronous intelligent test system includes a front end device, a control center, a data storage disk control array and a monitoring terminal; the front end device is used for forwarding test instructions to satellites and completing the acquisition, storage and forwarding of downlink data generated during a satellite test process; the front end device includes a plurality of channels which transmit data to the plurality of satellites respectively; the control center is used for realizing the editing and management of the test instructions, test cases and test rules of the satellites, sending the test instructions to the front end device, receiving and forwarding the downlink data sent by the front end device; the data storage disk control array is used for acquiring and storing the downlink data sent by the control center; the monitoring terminal is used for querying and analyzing the downlink data stored in the data storage disk array; and the control center, the data storage disk control array and the monitoring terminal are all connected into the Ethernet. With the system adopted, parallel testing of a plurality of satellites can be achieved, a batched satellite testing period can be shortened, and costs can be reduced.

The invention relates to a method for analyzing satellite test data, which comprises the following steps: receiving satellite uplink remote control instruction; Determining telemetry parameters according to satellite uplink telecontrol commands; Receiving test data; Classifying the test data according to the test data classification rules; Starting the corresponding inference engine for differentkinds of test data; Analyzing corresponding test data using the interpretation inference engine to determine whether the telemetry parameters are qualified and generate an analysis result; And displaying the analysis results. The invention also relates to a system for analyzing satellite test data. Through the method or system, the efficiency of satellite testing can be greatly improved, thereby accelerating the speed of satellite mass production and reducing potential failures.

The invention discloses a testing task implementing and operating method of a testing satellite, which comprises the following steps: sending a testing task command from the ground to control the implementation of a satellite testing task, wherein the testing task command comprises a testing task, the implementation starting time of the testing task and the implementation finishing time of the testing task; comparing the current satellite time with the implementation starting time of the testing task, when the current satellite time and the implementation starting time of the testing task are the same, starting to implement the testing task and recording the obtained testing data through an electronic disk; comparing the current satellite time with the implementation finishing time of the testing task, when the current satellite time and the implementation finishing time of the testing task are the same or the recording of the data storage region of the electronic disk is full, stopping implementing the testing task; and transmitting the testing data in the data storage region of the electronic disk to the ground by sending a telemetering selection command from the ground.

The invention provides a satellite test automatic execution system based on module splicing. The satellite test automatic execution system comprises a test project management unit for performing groupmanagement on a satellite system and subsystems; a test function module definition unit used for setting function module information; a module splicing editing management unit used for dragging different modules to the functional area of the unit and connecting the modules according to the test sequence; a splicing module information linking unit used for linking the test sequence information into a test sequence linked list; a test sequence execution unit used for collecting and recording various types of data in the test process; a test report generation unit used for outputting a test report according to the data pushed by the test sequence execution unit and a customizable report format; and a data storage unit used for storing the process data of each unit. According to the invention, software is used for automatically executing each test step, so that the batch rapid test of commercial microsatellites is realized, the test automation level is improved, the number of test personnel is reduced, and the satellite development period is shortened.

The invention relates to a satellite telemetering data predicting method based on Kalman smoothing. The satellite telemetering data predicting method based on Kalman smoothing solves the problems that the satellite telemetering data size is massive, the signal types are complicated, the requirements for the real-time performance, the consistency and the reliability of data are high, the data change rapidly along with the environment and a traditional manual data interpretation method can not meet the requirements of a satellite test. The telemetering data of the current moment of a satellite are used for predicting the telemetering data of the next moment in real time and abnormal changes of the data can be found in advance. In practical testing and applying, if the satellite telemetering data go abnormal, a certain telemetering value increases or decreases abnormally; at the initial stage, as the certain telemetering value does not exceed the preset threshold value, a tester can not find a test abnormality. By means of the data predicting method, the data of the next cycle can be accurately predicted, actions can be rapidly taken in terms of a zone with the abnormal data, the data abnormality can be found and predicted in time, and the tester is reminded to pay close attention to the data abnormality. In addition, the algorithm executing efficiency is high, the real-time performance requirement for the satellite test can be well met and the satellite telemetering data predicting method based on Kalman smoothing is suitable for long-term data interpretation and abnormal data detection.

The invention relates to a disconnection control device for an electric connector for satellite testing and launching. The electric connector includes a detachment electric connector and a separationelectric connector. The disconnection control device comprises an industrial control computer, an adapter cable, a satellite-ground long cable, program-controlled power supplies, a photoelectric converter, an optical fiber, a switch, a switching module, a signal conditioning module, a multiplexer module, a multimeter module, an analog acquisition module, a state acquisition module, control software, a general control terminal computer, a test server and a monitoring terminal computer. The disconnection control device realizes adaptive control for detachment electric connector detachment control and separation electric connector separation control, performs statistical analysis on test data such as the voltage, current, disconnecting time and disconnecting times during detachment and separation and gives the performance variation trend of the electric connector in the form of tables and curves; and meanwhile, the disconnection control device has anti-misoperation prevention measures andredundant design means, and improves the safety, reliability and fault-tolerance of thedetachment electric connector detachment control and the separation electric connector separation control.

The invention provides a PCM system satellite telemetry data classification extraction method and system. The PCM system satellite telemetry data classification extraction method comprises the steps that 1, acquiring telemetry frame feature attributes corresponding to telemetry data needing to be processed; obtaining category attributes of the target data needing to be extracted in a classified manner; acquiring a telemetry data input and output file path; 2, reading satellite original telemetry data; 3, carrying out telemetry frame synchronization according to the telemetry frame characteristic attribute corresponding to the telemetry data needing to be processed; After the synchronization is successful, locking a target class telemetry frame according to the class attribute; and step 4,acquiring all or a part of target type telemetry data in the satellite original telemetry data. According to the invention, the problem that different types of telemetry data cannot be classified in the satellite testing process is solved; According to the method and the system, the problem that the PCM system satellite large-data-volume telemetry data is provided for users only needing specific types of telemetry data is solved, the efficient classification of the PCM system satellite large-data-volume telemetry data is realized, and the requirements of users of different satellite subsystemson the efficient analysis and use of the target types of telemetry data are met.

The invention provides a virtual satellite, and a software and algorithm test platform and method based on the virtual satellite, and relates to the technical field of virtual satellites. The platformcomprises a satellite control and state monitoring tool which carries out measurement and control on the virtual satellite and the injection of software / algorithm, and receives the downloading data of the virtual satellite, an internal test tool which monitors behaviors of the software / algorithm and performing performance test on the software / algorithm, and an external test tool which performs configuration item test and / or system test on the software / algorithm. The virtual satellite uses a data center as an interface to decouple a cloud computing platform simulator from a satellite platformsimulator and a load simulator. According to the invention, the integration degree of simulators can be improved through the virtual satellite; efficient sharing and reuse of test resources are realized through the monitoring tool and the test tools; and the problem that multi-region cooperation, distributed execution and large-scale parallel testing cannot be met in existing satellite testing issolved.

The invention provides a double-satellite joint test energy simulation and monitoring system, which comprises an energy simulation subsystem and a test data collection and control subsystem, and is characterized in that the energy simulation subsystem can simulate a volt-ampere characteristic curve output by a solar cell array and supply power to and charge a satellite in a satellite test; the test data collection and control subsystem can control and monitor the satellite state; the energy simulation subsystem is connected with the test data collection and control subsystem. The test data collection and control subsystem is connected with the first satellite and the second satellite through unplugged cables to achieve charging and power supply, and the test data collection and control subsystem is connected with the first satellite and the second satellite in a wired or wireless mode to achieve control signal sending and state monitoring. When the first satellite and the second satellite are connected through the interface module, the joint test of the two satellites is realized; when the first satellite and the second satellite are not connected, the two satellites are tested independently.

The invention provides a data receiving and transmitting system and method for remote support of satellite tests. A data forwarding module is deployed in a satellite front end test system to send all kinds of data collected by a test system to a remote support center by an optical fiber network after encoding and compressing the same; and a data receiving module is deployed in the remote support center to receive the data of the data forwarding module, reduces the data into front end satellite and ground equipment data formats by decompression and decoding and releases the data to a telemetering display terminal, a load display terminal, a bus monitoring terminal and other software to carry out data analysis and judgment. By adoption of the data receiving and transmitting system and method provided by the invention, the technical guarantee work of satellites when executing transmitting tasks is simplified, the workload of engineering research personnel is greatly reduced, and the test efficiency is improved.

A remote sensing satellite load data dynamic simulation device belongs to the field of remote sensing satellite ground test. The remote sensing satellite load data loading device aims to solve the problem that an existing remote sensing satellite load data loading device cannot comprehensively simulate data changes in actual operation of satellite loads due to the fact that the form of loaded analog data is fixed. The device comprises a dynamic real-time simulation module and a dynamic real-time loading module, and the dynamic real-time simulation module is used for generating image type loading simulation data and non-image type loading simulation data; meanwhile, receiving hardware parameter configuration data of the dynamic real-time loading module; and the dynamic real-time loading module is used for loading the image class loading analog data and the non-image class loading analog data to corresponding loads on a satellite through a multi-path customized data interface. Accordingto the invention, the high-speed data real-time loading module and the low-speed data real-time loading module are adopted to carry out real-time loading on satellite load simulation data, so that thesatellite ground test time is greatly shortened, and the flexibility and reliability of satellite test work are improved.

The invention discloses a middleware system for collection and control of satellite test data. The middleware system for collection and control of the satellite test data comprises an application layer, a communication mode realization layer and a communication protocol adaptation layer, wherein the application layer achieves conversion of a specific communication protocol into a communication mode through a service component, a service container and a resource location service, the communication mode realization layer is connected with the application layer, and forwards data information packets according to the communication mode selected by the application layer, and the communication protocol adaptation layer is connected with the communication mode realization layer, converts the data information packets into target protocol data packets, and achieves transceiving of data or messages. The middleware universal system for collection and control of the satellite test data isolates the application function and communication protocols of specific devices, and thus hardware devices and specific communication protocols of the hardware devices can be replaced at will.

The invention provides a database normalization storage system and method suitable for use in multi-model satellite testing. The system includes: a data receiving module, which is responsible for connection maintenance of data storage service software and maintenance of global chain table variables in processes, creates a service thread, which is used for receiving, processing and storing corresponding data, for a data source whenever the data source is connected, and uses information and a Socket handle link of a new user and a user list as bases of data forwarding of a user thread whenever the new user is newly connected; and a data processing module, which is responsible for carrying out unpacking and data format integration on data of each data source to enable a subsequent database storage module to carry out invoking. According to the system, satellite testing data storage is standardized, satellite testing data availability is improved, and safety and reliability of a testing process are improved.

The invention provides a novel microsatellite multifunctional data testing system. A satellite data testing device comprises an ASIC chip, an Ethernet communication module, a USB communication module, a power module, an RS422 / RS485 serial port communication module, a wireless communication module, a 1-WIRE communication module, a CAN bus communication module and an RS232 communication module, wherein the Ethernet communication module, the USB communication module, the power module, the RS422 / RS485 serial port communication module, the wireless communication module, the 1-WIRE communication module, the CAN bus communication module and the RS232 communication module are connected with the ASIC chip. A satellite testing data display system conducts data interaction with the satellite data testing device through an RS232 serial port and an Ethernet port or a USB port capable of being arranged, and data analysis, display and drawing are conducted through the satellite testing data display system. Various collected satellite data can be encoded and decoded through hardware of the data testing device and converted into data in formats capable of being identified by the satellite testing data display system, and therefore the satellite testing data display system can be used for conducting comprehensive system testing on tested satellites.