41 results about "Star system" patented technology

General method for extracting source distance information from any kind of received radiation, including electromagnetic and acoustic, without involving round-trip time or phase in any form, and thus more truly passive than existing passive radars. The method exploits the facts that radiation from a real source must comprise wavepackets of nonzero bandwidth, that the individual frequency components of a wavepacket must have consistent phase at the source, and that their instantaneous phases must increase linearly along the path in proportion to the respective frequencies, so that the phase gradient across the components must be proportional to the distance travelled. The invention simplifies over naïve phase gradient measurement by scanning the phase gradient at a controlled rate, thereby converting the gradient into normalized frequency shifts proportional to the scanning rate and the source distance. It mimics the cosmological redshift and acceleration, but at measurable levels over any desired range and even with sound. Potential applications include stealth and “unjammable” radars for the military, ranging capability for emergency services, commodity low-power vehicular and personal radars, simplification and improvements in radar and diagnostic imaging, improved ranging in general all the way from ground to inter-galactic space, “interference-free” communication systems including radio and television receivers, source-distance (or range-division) multiplexing improved cellphone power control and battery life, and continuous, transparent diagnostics for optical fibres, integrated circuits and transmission lines.

The invention provides a system structure based on Rapid IO (Input Output) protocol packet exchange for meeting high-speed communication of Serial Rapid IO applied by an embedded system and further meeting interconnection communication requirement of the Rapid IO and effectively improving the system performance and the fault-tolerant capability. The system structure based on the Rapid IO protocol packet exchange comprises a plurality of Rapid IO exchange chips; and all Rapid IO exchange chips can be used for constructing a star system interconnection topology structure and a dual-loop system interconnection topology structure; and in a plurality of end nodes in all Rapid IO exchange chips, one end node is set as a Rapid IO main management node of the whole system. The invention has the advantages of simpleness for realization of system hardware, flexibility for software configuration, reliable performance, reconstruction support, fault tolerance, adjustable dynamic flow and configurable scale.

The present invention provides an innovative apparatus, system and method for onboard spacecraft location determination and navigation by employing the observation of extrasolar planetary star system motion. In one apparatus embodiment a gas absorption cell is placed between a sensor and the light from a reference star system with at least one exoplanet, such that the sensor can detect the spectrum through the gas absorption cell. Radial velocities can be calculated via Doppler Spectroscopy techniques and incorporated into a spacecraft navigation solution. The present invention can enable and enhance significant mission capabilities for future manned and unmanned space vehicles and missions.

The invention provides a backup method and a backup system of a central node of a star topology network. The method comprises the following steps: sending a self address to a central node by a backup node, and sending the address of the backup node to each edge node by the central node; receiving keep-alive messages regularly and synchronously sent by the central node and recording own latest time for receiving the keep-alive messages by each edge node; regularly inquiring the own latest time for receiving the keep-alive messages and judging whether the time exceeds preset keep-alive period time or not; and if the time exceeds the preset keep-alive period time, switching the communication with the central node to the backup node. When the scheme is applied, because the central node and the backup node are in different host machines, even if the host machine of the central node is broken down, the stability of the whole star system cannot be influenced. In addition, the backup node is not a sub node of the central node, as long as the edge nodes detect out a fault of the central node, the communication can be automatically switched to the backup node. The invention is simpler to realize and greatly reduces the cost.

The invention discloses a method for designing a non-circular gear planetary system through Fourier function segment transmission ratios. The method includes the steps that according to the structural symmetry characteristic of a planetary gear system of a rotary type transplanting mechanism, a transmission ratio between non-circular gears is segmented at the 180-degree position, and the relation among the segment transmission ratios of the planetary gear system is constructed; under the condition of meeting the total transmission ratio of the gear system, in order to solve the problem that effective equations for solving the segment transmission ratios are not enough, the Fourier hypothesis of the non-circular gear segment transmission ratios is provided, and other transmission ratios are distributed successfully; through mirror image, weighting, iterating and fitting processing performed on the segment transmission ratios, an ideal transmission ratio is obtained finally, and therefore a non-circular gear pitch curve is obtained. The method is simple in process, small in calculation amount and high in efficiency, and the designed non-circular gear transplanting mechanism is highly targeted.

The invention discloses a design method of a multifunctional space gravitational wave detector based on the TRIZ. Seven inventive principles recommended by the TRIZ serve as technological evolution paths, a ground laser interference gravitational wave detector can be evolved into a multifunctional space gravitational wave detector. The multifunctional space gravitational wave detector comprises devices such as spacecrafts. As shown in the figure, the multifunctional space gravitational wave detector is characterized in that the three spacecrafts form an equilateral triangle constellation with the 103-109km side length, the center of the equilateral triangle constellation moves on the earth orbit, an optical table on each spacecraft and an optical table on the adjacent spacecraft can have interference through coherent light beams generated by lasers, if gravitational waves scan the spacecrafts, the strength of light passing through photodiodes of photodetectors changes, a differentiator and a correlator are used for calculating the relation between the strength of the light and the phase position, and the value of the gravitational waves to be measured is obtained. The multifunctional space gravitational wave detector is characterized in that the low and medium frequency gravitational waves are detected, and a double-star system, large-mass black holes and random background gravitational waves are surveyed.

In a simultaneous transmit and receive (STAR) communication system, an RF signal splitter couples an antenna to an RF transmitter and to an RF receiver, without using a circulator. An adaptive cancellation RF waveform generator generates an adaptive cancellation RF signal to cancel cross-talk from the RF transmitter to the RF receiver. Training signals are used to characterize signal paths within the STAR system and calculate filter coefficients for generating the adaptive cancellation signal.

A modular star system for grading, cleaning, and transporting produce includes opposing, first and second hub modules with opposing, tapered surfaces, and plural finger modules separated by the first and second hub modules. Each finger module has finger members that are color-coded and the finger module and first and second hub modules are disposed on a rotatable shaft. Outer surfaces of either of the finger or hub modules are color-coded, and are substantially perpendicular to the long axis of the shaft. There is also a method of using the modular star system for grading, cleaning, and transporting produce.

The invention discloses a four-subnode star server system capable of realizing hard disk sharing, and relates to the field of high-density servers. The system mainly comprises four server nodes, a hard disk module, a power panel and a system middle board, wherein the hard disk module comprises a hard disk backboard and hard disks inserted into the hard disk backboard; the power panel is communicated with the system middle board to supply power to the system middle board; the hard disk module and the four server nodes obtain electricity from the system middle board; a SAS (Serial Attached SCSI) exchange board is arranged between the system middle board and the hard disk module and obtains the electricity in the system middle board; and through a SAS exchange board server node, any hard disk in the hard disk module can be accessed. In the four-subnode star system, the read-write access of any node to 24 pieces of 2.5-inch hdds (Hard Disk Drives) can be realized, the pooling and the sharing of system storage resources can be realized, the use ratio of the hard disk storage space of the four-subnode star server system is improved, and the stable and quick operation performance of the system is improved.

This invention relates to one geography position determination and display method, which provides one electronic map communication device and use based on global position system, Galileo device, north star system, difference device, wherein, the device can provide accurate geography position to get device data through software establishing satellite guide system to determine detail geography coordinates on device to display its geography position and image.

The invention discloses a chip satellite based on an electrical activity polymer and the attitude control method of the chip satellite. According to the chip satellite disclosed by the invention, according to the principle of angular momentum conservation, through deformation of the electrical activity polymer arranged on the periphery of a chip satellite center platform, the mass distribution of a whole system is changed, so that attitude maneuver of the chip satellite is realized. According to the attitude control method of the chip satellite provided by the invention, a conventional chip satellite attitude control method gets away from the dependency of magnetic field and an ionosphere, so that the attitude maneuver of the chip satellite can be realized at any position in space, and the application range of the chip satellite is greatly extended; after the process of the attitude maneuver of the chip satellite is completed, the chip satellite system still keeps the plane condition before the attitude maneuver is performed, so that under the plane condition, an antenna structure formed by electrical activity polymer drivers is under a condition that electrifying is not needed, and the chip star system can maintain the realized attitude maneuver without consuming any energy after the attitude maneuver is performed.

The present invention is directed to a synergistic blend of a sunscreen agent, specifically avobenzone and a specific class of ester that results in substantially improved sunscreen effectiveness, improving the performance of the sunscreen formulation as determined by the star system.

The invention discloses a star system which comprises a body and a suspending structure. A control module is arranged in the suspending structure. The control module comprises a controller and a power module. The body comprises three auxiliary bodies which are arranged in parallel. One end of the suspending structure is fixed to a ceiling, and the other end of the suspending structure is connected with the three auxiliary bodies. The outer side of each auxiliary body is provided with an atmosphere lamp module and a star lamp module, and a purifying module is arranged in each auxiliary body. All the atmosphere lamp modules are connected to the controller in parallel. All the star lamp modules are connected to the controller in parallel. All the purifying modules are also connected to the controller in parallel. An air detection module, a loudspeaker module and an aromatherapy module are further arranged in each of the three auxiliary bodies, wherein the three modules are independently connected with the controller. By means of the star system, the requirements of users for air purifying, lighting, the environment starry sky feeling, sounds and tastes are met, the overall air environment of a user family is built through air mode control of application software at the mobile phone end, and the users can have more comfortable experiences.

The invention discloses a spacecraft three-super near-zero-error tracking control method based on combined filtering, and is suitable for the field of target tracking and having load super-high precision determination requirements. Different from traditional spacecraft star platform single-stage attitude control, the invention provides a star-load-fast steering mirror three-level attitude cooperative control method based on combined filtering for the spacecraft platform with three-super control performance such as super-high precision pointing, super-high stability control and super-sensitivecontrol. Pose calculation of a target is improved through deep learning, attitude control precision is improved step by step from a star system, a load system and a fast steering mirror system, and high-precision attitude control is provided for optical load fast tracking and high-quality imaging. The main idea of the method is as follows: establishing a three-level cooperative control system kinetic model; calculating the pose of the feature part of the target spacecraft based on deep learning; designing a multistage system fusion filter; and designing a three-stage cooperative control systemcontroller, including bandwidth design.

The invention provides a system used for short-distance flying target attitude measurement. The system comprises front-end starring systems and a rear-end processing and storage system, and an optical fiber transmission system connecting the two systems. The rear-end storage and operation system transmits an instruction before a flying target flies by or hits the bull's eye, and the instruction is transmitted to each front-end starring system via optical fibers. The laser lighting equipment and the high-speed video cameras of each starring system start to work. The photographed images are transmitted to the rear-end storage and operation system to be saved in real time. Multiple video cameras photograph the flying target at the same time in short distance. Parameters of attitude, speed, position and miss distance in hitting the bull's eye of the flying target can be measured according to certain known calculation methods. The front-end starring systems used for short-distance photographing are low in cost and particularly suitable for certain flying targets with destructiveness. The front-end starring systems within destructive range in miss distance explosion are allowed to be damaged and can act as consumables to be replaced and then the whole system can continuously work.

The invention relates to a relation model establishment method and system for intellectual property multi-dimensional data, relates to the technical field of data mining, and solves the problems thatprofessional data warehouse software is generally high in complexity, high in requirement on hardware and needs to be maintained by professional personnel; when a star model and a star system model are adopted, a central table becomes very large, and query efficiency and access efficiency are low. The method comprises the following steps: P101, determining a theme and a dimension; P102, constructing a dynamic Hash ring; P103, adjusting the Hash ring; P104, carrying out data positioning; and P105, completing data extraction and extracting data. Through a new center table construction mode, multiple center tables with the same theme are planned to be constructed to work cooperatively, the data size of a single center table is reduced, and the effect of improving the access efficiency of thecenter table is achieved.