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330results about "Cosmonautic ground equipments" patented technology

Quick fault detection system for spacecrafts

The invention discloses a quick fault detection system for spacecrafts. The quick fault detection system comprises a measurement module, a fault detection and diagnosis module, an interface module and an output module. State signals of sensors can be received by the measurement module and can be inputted into signal conditioning circuits of a LABVIEW platform in the measurement module so as to obtain measurement data of electric analog signals; the measurement data can be received by the interface module and can be integrated according to the time so as to obtain matrix forms; information fusion can be carried out on the integrated measurement data by the fault detection and diagnosis module so that the measurement data can be converted into CLIPS fact structures, eligible measurement data can be deduced by inference machines according to rules of an expert knowledge base, positioning and detection can be carried out by the aid of fault tree rules, and maintenance suggestion can be obtained; positioning and detection results and the maintenance suggestion can be displayed by the output module. The quick fault detection system has the advantages that knowledge is easy to acquire and analyze, and the quick fault detection system is high in rule inference efficiency; effects of predicting faults can be realized according to judgment on current working states of the spacecrafts, accordingly, possible consequence can be eliminated in advance, and the quick fault detection system has low hardware requirements.
Owner:SHANGHAI JIAO TONG UNIV

Self-adaptive propulsion mounting system for erecting frame of launch vehicle

ActiveCN106428655AQuick pushRapid launch preparationCosmonautic ground equipmentsSelf adaptiveTailstock
The invention discloses a self-adaptive propulsion mounting system for an erecting frame of a launch vehicle. The self-adaptive propulsion mounting system comprises a reversal docking device and a transport vehicle, wherein the erecting frame is arranged on the transport vehicle; a plurality of lateral fine-tuning mechanisms are respectively mounted on the two sides of the erecting frame; a plurality of universal swing mechanisms are mounted at the top surface of the transport vehicle, and the universal swing mechanisms are abutted against the bottom end surface of the erecting frame; a propulsion mounting support is fixedly connected to the erecting frame; the propulsion mounting support is hinged to the output end of a propulsion mounting oil cylinder; through a hinge seat A, the tail end of the propulsion mounting oil cylinder is hinged to the front end of a tailstock fixed to the top of the transport vehicle; a positioning guide rail is arranged at the top of the reversal docking device; the universal swing mechanisms, which are matched with the bottom end of the positioning guide rail and are inverted, are fixedly connected to the bottom at the front end of the erecting frame; a positioning support is fixedly connected to the front end of the erecting frame; a positioning pin which is matched with the positioning support is fixedly connected to left end of the positioning guide rail; and a positioning switch is mounted in a position close to the positioning pin. Through the adoption of the self-adaptive propulsion mounting system disclosed by the invention, the propulsion mounting cost of the launch vehicle is effectively reduced, and the accuracy and efficiency are improved.
Owner:GUIZHOU AEROSPACE TIANMA ELECTRICAL TECH

Ground emitting control device of solid-liquid powered aircraft

The invention discloses a ground emitting control device of a solid-liquid powered aircraft; the ground emitting control device consists of a front end device and a rear end device. The front end device is a ground control box, wherein the output port of the front end device is connected with the solid-liquid powered aircraft; the rear end device comprises a host computer and a remote control box, and the remote control on the solid-powered liquid-powered aircraft is realized. The ground emitting control device of the solid-liquid powered aircraft mainly finishes two functions; the first function is the igniting emitting function which relates to pressure increase of storage boxes, ignition of igniter and opening of liquid-path electromagnetic valve, and the other function is emitting safety ensuring function which relates to high-pressure gas release of high-pressure bottles, pressure release of storage boxes and oxidant discharge of storage boxes. The ground emitting control device solves problems of complicated system, poor portability and high cost of traditional ground emitting control devices, the precise control of igniting emitting timing sequence aiming at the characteristics of solid-powered liquid-powered aircraft is realized, and the programming can be carried out in an on-line manner so as to modify igniting emitting timing sequence simply and conveniently.
Owner:BEIHANG UNIV

Deep space exploration large-caliber antenna calibration ground test system based on suspension device

The invention discloses a deep space exploration large-caliber antenna calibration ground test system based on suspension device. The deep space exploration large-caliber antenna calibration ground test system based on the suspension device comprises onboard equipment and ground equipment; the onboard equipment comprises a large-caliber antenna, an onboard low gain receiving antenna, antenna driving control equipment and onboard communication equipment; and the ground equipment comprises the suspension device, a ground signal simulator, a ground low-gain transmitting antenna, a theodolite anda frequency spectrograph. By using the suspension device, gravity force effects of the large-caliber antenna in a static state and a driving state are effectively balanced; by using a ground signal simulation source, the low-gain transmitting antenna and the large-caliber antenna, in-orbit communication state to the ground is simulated; through reasonable position layout, the signal intensity of the large-caliber antenna is inversely calculated by using the low-gain receiving antenna; by using the theodolite, the pointing accuracy of a mechanical shaft of the large-caliber antenna is calibrated, and the radio frequency calibration accuracy of the large-caliber antenna is inverted. According to the deep space exploration large-caliber antenna calibration ground test system based on the suspension device, the in-orbit calibration process of the large-caliber antenna can be effectively simulated, and the reasonability and the effectiveness of the in-orbit calibration method are guaranteed.
Owner:SHANGHAI SATELLITE ENG INST

Modular assembly small satellite platform with adjustable quality characteristic

The invention discloses a modular assembly small satellite platform with adjustable quality characteristic, and relates to the field of precise attitude and orbit control of satellite; the modular assembly small satellite platform comprises an attitude and orbit control module, two solar panel modules, a vertebral column module, a load module, a communication module and n centroid adjusting modules; the vertebral column module is of a square column structure; the vertebral column module is vertically arranged; the attitude and orbit control module is fixedly arranged on the upper surface of the vertebral column module; two solar panel modules are symmetrically and fixedly arranged on the two sides of the top end of the vertebral column module; the load module is fixedly arranged at the bottom of the vertebral column module; the communication module is fixedly arranged at one side of the load module; the n centroid adjusting modules are fixedly arranged inside the vertebral column module or the other side of the load module; and n is an integer greater than or equal to 1. The existing design process of design, test and balance weight of the quality characteristics of the small satellite are changed, development cycle is shortened, and the quality characteristics control of the modular assembly small satellite on orbit can be realized at the same time.
Owner:AEROSPACE DONGFANGHONG SATELLITE
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