14 results about "Satellite testing" patented technology

The embodiment of the invention provides a satellite test control method and device, control equipment and a test box. The method comprises the following steps: setting a satellite in a test box in a normal pressure state, and determining a target temperature based on a temperature change rate of a satellite component in the test box in a process of operating the test box in advance; and then, in the process of controlling the test box to operate at the target temperature, obtaining operation data of the satellite in the test box, and obtaining a test result of the satellite. A normal-pressure thermal cycle test is provided, more equipment is not needed to maintain a vacuum environment for satellite test, and the cost of satellite test is reduced; under the normal pressure condition, the satellite can be tested conveniently and quickly, the satellite testing period is shortened, and the satellite testing time cost is reduced.

This utility model relates to the field of robotic arm technology and discloses a multi-degree-of-freedom robotic arm for satellite testing. It includes a base, a support frame on top of the base, a third motor for rotating the support frame fixed on one side of the base, and a first motor, a second motor, and a fifth motor fixed on one side of the support frame. A ninth connecting arm is fixed to the output shaft of the first motor, a first connecting arm is fixed to the output shaft of the second motor, and a fifth connecting arm is fixed to the output shaft of the fifth motor. A moving component for multi-station satellite testing is located at the bottom of the base. Through the combination of multiple motors and connecting arms, the mounting plate drives the satellite to move in six degrees of freedom in three-dimensional space, enabling the robotic arm to perform precise spatial positioning and attitude adjustment in complex environments. The fifth connecting arm simultaneously hinges to the fourth and sixth connecting arms, allowing the robotic arm to achieve complex composite movements and increasing its convenience.

The invention provides a space delivery and recovery microgravity test system, and relates to the technical field of satellite testing, the space delivery and recovery microgravity test system comprises an air bearing platform, a marble platform and a lifting platform; an angle adjusting assembly is arranged above the air floating table, and the angle adjusting assembly is used for installing the child satellite main body and adjusting the deflection angle of the child satellite main body; an air floating assembly is arranged below the air floating platform and is used for enabling the air floating platform to float above the platform surface of the marble platform; the upper portion of the lifting platform is used for installing a delivery separation device, a mother satellite interface structure is arranged at the end, facing the child satellite body, of the delivery separation device, and a child satellite interface structure matched with the mother satellite interface structure is arranged at the end, facing the delivery separation device, of the child satellite body. Compared with the prior art, the space delivery and recovery microgravity test system effectively solves the problem that a child-mother satellite delivery and recovery device is difficult to simulate child satellite angle deviation and verify docking adaptability in ground verification.

The invention provides a non-contact satellite safety monitoring alarm system and device. The non-contact satellite safety monitoring alarm system comprises a dynamic and static thermal imager combination, a data processing and control module and a display alarm terminal. The static thermal imager combination is composed of a wide thermal imager and a two-dimensional directional variable-focus high-resolution thermal imager, and the wide thermal imager and a two-dimensional directional variable-focus high-resolution thermal imager base are integrated into a whole and used for achieving fixed-angle satellite panoramic thermal imaging and high-resolution thermal imaging at a satellite test station. The data processing and control module is composed of an image processing sub-module, a comprehensive control sub-module and a data storage and transmission sub-module, and is used for identifying the name and the temperature value of a satellite image hot spot region in real time, and comparing and analyzing the name and the temperature value with a satellite temperature reference value to form alarm information and the like; the alarm terminal is a mobile phone terminal or a computer terminal with a loudspeaker sound output function, and is used for carrying out data interaction with the data processing and control module and displaying temperature alarm information and the like to a terminal user.

The invention discloses a satellite-ground time synchronization system and method for a satellite comprehensive test. The system comprises a navigation signal simulation source, time frequency equipment, ground special test equipment, a satellite-borne navigation receiver and a satellite-borne computer. According to the method, the uniform satellite-ground time reference is established, accurate and comparable timestamps with consistent sources are printed on all satellite telemetry data and ground test data, and the problem of information islands caused by disorder of the timestamps is solved. A ground navigation signal simulation source is used as a unique time source of satellite and ground special test equipment, a satellite-borne navigation receiver and ground time frequency equipment are used for resolving navigation radio frequency or low frequency signals of the navigation signal simulation source in parallel, and an inherent error accumulation chain in a cascade transmission synchronization mode is cut off. According to the ground time synchronization scheme of NMEA serial port second giving and second pulse frequency calibration, high-precision time synchronization can be realized only by receiving and analyzing standardized NMEA data and second pulse signals by ground time frequency equipment, and the hardware cost and the development difficulty of a software algorithm are reduced.

This invention relates to the field of satellite simulation and testing technology, specifically to a multi-satellite parallel testing system for attitude and orbit control systems. The system includes a signal transfer unit subsystem, an I / O interface subsystem, a multi-core real-time simulator subsystem, a real-time simulation main control subsystem, a database server subsystem, and a power supply module subsystem. The multi-core real-time simulator connects to multiple I / O interface chassis via PCIe expansion components, with each chassis corresponding to the test resources of one satellite. The real-time simulation main control subsystem deploys the dynamic simulation models of multiple satellites onto different processor cores of the simulator, achieving multi-core distributed parallel simulation. Each satellite's onboard computer establishes a real-time data interaction link with its corresponding dynamic simulation model, forming a multi-satellite parallel real-time closed-loop testing state. This system solves the problem that traditional single-satellite testing systems cannot meet the requirements of mass production and parallel testing, offering advantages such as high testing efficiency, low hardware cost, and strong scalability.

The invention discloses an aviation monitoring load single machine and a whole satellite sensitivity test method. According to the method, a system is built in a microwave darkroom for stand-alone testing, and after link calibration, ADS-B signals with loads in different directions and in different formats are tested; in the whole satellite test, a satellite platform is deployed in a large darkroom, double transmitting antennas are arranged, a test signal is transmitted after link parameters are calibrated, and unpacked data are monitored. The test result shows that the load demodulation success rate is higher than 90%, and the sensitivity in the full state meets the index requirements. According to the method, coherent and accurate testing of the whole stage of load development is achieved, and a reliable method is provided for performance verification of a low-orbit satellite aviation monitoring system.

The application provides a satellite electric test resource scheduling method and system based on a directed acyclic graph, which comprises the following steps: a digital model of satellite test and assembly resources is established; for different types of satellites, unit cutting is performed on test items and assembly items, and the cutting is divided into independent units, which can complete a specific work; a directed acyclic graph is established by using the test items and the assembly items according to the sequence of the test items and the assembly items of the required developed satellite; a multi-level feedback queue scheduling algorithm is used to schedule and plan the resources of the satellite and the test process; and the resources of the satellite are dynamically adjusted according to the real-time process of the electric test, so as to ensure that the satellite electric test flow works at the maximum beat. The application can solve the problem that the satellite assembly and test segmentation cannot be considered as a whole in the past, solve the resource allocation and scheduling problem of different types of satellites, and has a certain significance for the resource scheduling management of satellite ground development.

This invention relates to the field of satellite testing and discloses a multi-satellite collaborative on-orbit testing system, method, medium, and product based on a physical satellite. The system includes: a satellite under test for performing preset operations; a ground station for sending macroscopic test commands to a master test satellite; a master test satellite for receiving macroscopic test commands, generating corresponding collaborative control strategies based on the macroscopic test commands, and then distributing the collaborative control strategies to collaborative test satellites; it also observes the satellite under test to obtain observation data, receives test data sent by the collaborative test satellites, and then generates test results based on the observation data and test data; and at least one collaborative test satellite for receiving the collaborative control strategies, forming a preset configuration around the satellite under test according to the collaborative control strategies to test the satellite, and also for collecting test data and sending the test data to the master test satellite. This invention improves the accuracy of on-orbit satellite testing.

The invention relates to the technical field of satellite testing, and discloses a system, a method and a device for testing the orientation performance of GNSS orientation equipment, and a medium, and the system is characterized in that a slave antenna is arranged on a guide rail with a master antenna as a circle center, the output end of the master antenna is connected with a first passive power divider, and the slave antenna is connected with a second passive power divider; the output end of the first passive power divider is connected with the first active power divider and the first power attenuator, and the output end of the second passive power divider is connected with the third active power divider and the second power attenuator; the output end of the first power attenuator is connected with a second active power divider, and the output end of the second power attenuator is connected with a fourth active power divider; the first active power divider is connected with a main antenna input end of directional testing equipment, the second active power divider is connected with main antenna input ends of all directional equipment and slave antenna input ends of the directional testing equipment, and the fourth active power divider is connected with slave antenna input ends of all the directional equipment; the controller communicates with the orientation test device and each orientation device, and accurately tests the orientation performance of the plurality of orientation devices in a real environment.

This application relates to the field of satellite testing technology and discloses a GNSS orientation performance testing system, method, apparatus, and medium, including: a slave antenna mounted on a guide rail centered on a main antenna; the output of the main antenna connected to a first passive power divider, and the slave antenna connected to a second passive power divider; the output of the first passive power divider connected to a first active power divider and a first power attenuator; the output of the second passive power divider connected to a third active power divider and a second power attenuator; the output of the first power attenuator connected to the second active power divider, and the output of the second power attenuator connected to a fourth active power divider; the first active power divider connected to the main antenna input of the orientation testing equipment; the second active power divider connected to the main antenna input of each orientation device and the slave antenna input of the orientation testing equipment; and the fourth active power divider connected to the slave antenna input of each orientation device; a controller communicates with the orientation testing equipment and each orientation device to accurately test the orientation performance of multiple orientation devices in a real environment.

The invention belongs to the technical field of satellite testing, and particularly relates to a satellite electrical performance testing method, system and device and a storage medium. The technical problems that in the prior art, manual testing efficiency is low, cooperative work of multiple software systems is difficult, equipment is scattered and inconvenient to manage, and testing functions are limited are solved. Comprising an automatic test software platform used for generating a test task according to user operation; the central control module is used for generating a control instruction according to the test task; the ground equipment integration module is used for enabling the corresponding ground test equipment to enter a working mode according to the control instruction; the data acquisition and processing module is used for acquiring a data stream of the ground test equipment in real time, obtaining original data, preprocessing the original data, obtaining test preprocessing data and acquiring equipment state information of the ground test equipment; and the remote monitoring and diagnosis module is used for carrying out fault detection and diagnosis according to the test preprocessing data and the equipment state information and generating a test result.

The invention relates to a satellite production line test data co-processing method and system based on edge calculation, and belongs to the technical field of satellite manufacturing and testing. According to the method, full-amount local storage and index uploading are carried out on satellite bus data through a station edge node, and classified and simplified uploading is carried out on ground single machine data according to dynamic characteristics of a switching value, a slow variable and a fast variable; during abnormal triggering, a fault diagnosis packet associated with the test steps is automatically generated; and after the test is completed, filing the total data to a central platform. The system adopts a three-level framework of edge node cluster-edge gateway-central platform to realize the functions. Intelligent simplification is realized from a data source, the uploaded data volume is reduced by more than 90%, the pressure of a central platform is greatly relieved, meanwhile, complete fault analysis data is provided through a fault snapshot mechanism, the automation level and efficiency of fault positioning are remarkably improved, and the fault positioning efficiency is improved. The contradiction between mass data processing and accurate fault tracing in batch satellite testing is effectively solved.

The application discloses a satellite test experiment system, relates to the technical field of satellite testing, and is used for satellite quality testing. In order to solve the problem of low efficiency in satellite test experiments, the application provides a satellite test experiment system, which comprises an EMC darkroom and a satellite conveying device. A glass steel walkway with a first distance higher than the ground is arranged in the EMC darkroom, so that the satellite conveying device can convey the satellite to a designated position for test experiments, and the inner walls on each side of the EMC darkroom are provided with wave-absorbing materials which do not need to be disassembled. Therefore, the wave-absorbing materials do not need to be arranged again every time the satellite is tested, and the satellite conveying device can replace the traditional manual satellite conveying. The satellite is conveyed to the designated position for experiments through the arranged glass steel walkway, so that the labor is saved, the test efficiency is improved, and the effect is more remarkable in large-scale satellite testing.