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144results about How to "Free combination" patented technology

Channel equalization system and method for independent error correction code modulation of subcarriers in optical OFDM (orthogonal frequency division multiplexing)

The invention discloses a channel equalization system and method for independent error correction code modulation of subcarriers in optical OFDM (orthogonal frequency division multiplexing), and relates to the field of optical fiber communication. The method includes the steps: distributing serial data onto a plurality of parallel subcarriers after the serial data pass a serial-parallel converter of a transmitting end, independently performing error correction code and modulation format mapping by each subcarrier, arranging the subcarriers with the same error correction code type and the same modulation format mapping type into a group, equalizing the transmitting power of the subcarriers in the same group, keeping the SNR (signal to noise ratio) of a receiving end by the subcarriers with the same error correction code and modulation format mapping, converting signals from frequency domain to time domain by the aid of inverse Fourier transform, and performing parallel-serial conversion and electro-optical conversion; enabling the process of the receiving end to be opposite to that of the transmitting end. Error correction code and modulation format mapping combinations of the subcarriers can be flexibly selected, spectral efficiency utilization of each subcarrier is optimized, and point-to-multipoint application requirements are met.
Owner:WUHAN POST & TELECOMM RES INST CO LTD

Electricity consumption information acquisition system fault diagnosis equipment

The invention provides electricity consumption information acquisition system fault diagnosis equipment which comprises a processor as well as a concentrator local communication module interface, an electric energy meter local communication module interface, a concentrator remote communication module interface, a zone area recognition unit, an RS485 port, an RS232 port, an infrared port and a WiFi module which are connected with the processor, wherein the zone area recognition unit is used for recognizing phase information and zone area information of an electric energy meter to be tested and comprises a first zone area recognition module and a second zone area recognition module; the concentrator local communication module interface is connected with a concentrator local communication module or a meter reader controller module in a pluggable manner; the electric energy meter local communication module interface is connected with an electric energy meter local communication module in a pluggable manner; the concentrator remote communication module interface is connected with a concentrator remote communication module in a pluggable manner; the processor is used for detecting the electric energy meter, a concentrator, the electric energy meter local communication module, the concentrator local communication module or the concentrator remote communication module in an electricity consumption information acquisition system respectively.
Owner:NORTH CHINA GRID MEASUREMENT CENT +4

Universal type breeding method for rice engineering maintainer line, and application thereof in propagation of ordinary nucleic male sterility lines of rice

The invention discloses a universal type breeding method for a rice engineering maintainer line. The method comprises the following steps: establishing a dual-element expression vector of color marker gene C; shifting the vector into a type with the genetype of SS through a transgenic method to obtain transgenic strains; obtaining isozygoty strains through selfing propagation; analyzing the insertion site of gene C of each isozygoty strain and obtaining an engineering maintainer line candidate bank through screening and establishment; and crossbreeding ordinary nucleic male sterility lines of rice with the genetype of SS with the isozygoty strains in the candidate bank to obtain F1, obtaining F2 through selfing propagation of F1, breeding seeds with no color in the F2, inspecting sterile stains in each group of F2 stain after breeding, and screening the seeds of F1, where the sterile stains accounting for more than 98% of the F2 come from to take the seeds as the engineering maintainer line. The breeding method provided by the invention has the advantages of short period, strong universality, high efficiency and the like; and the obtained engineering maintainer line can be applied to mechanized and large-scale propagation of ordinary nucleic male sterility lines of rice.
Owner:HUNAN HYBRID RICE RES CENT

Modularized mobile electronic equipment

The invention provides modularized mobile electronic equipment comprising a plurality of function modules that can be spliced in a matching mode. Plugging ports for mutual butt joint are formed in the sides of the function modules. The function modules with different functions are spliced together to form mobile electronic equipment. Formation of mobile electronic equipment with different functions is realized by changing an array splicing sequence of the function modules or increasing or deleting function modules with different functions. The function modules consist of a rechargeable battery module, a power management module, a wireless charging transmission module, a central control module, a wireless communication module I, a wireless communication module II, a positioning module, a multimedia module, a memory module, a peripheral interface module and an expansion application module. The provided modularized mobile electronic equipment not only can work as an integrated mobile terminal to work independently but also can provide function extension for other mobile terminals. No back panel is required; each module is provided with a unified plugging port; all modules can be combined and connected freely; and no limitation on the number and spatial connection of modules is set.
Owner:NINGBO LIKETEK INFORMATION TECH

Method and system for 2D/3D microstructure texture decoration on surface of raw material

The invention relates to a method and a system for 2D / 3D microstructure texture decoration on the surface of a raw material, which realizes texture on the surface of a raw material directly. The method comprises the following steps: drawing a photoplotted film with a precision of 25400 dpi by using a photoplotter and outputting the photoplotted film, coating a photo-sensitive resist on one surface of the raw material by using a printing machine or a coating machine; putting the photoplotted film and a raw material photo-sensitive resist layer into an exposure machine, enabling light of the exposure machine to pass through a photoplotted film transparent region to expose the raw material photo-sensitive resist layer; according to different raw materials, putting the exposed raw material photo-sensitive resist layer into development solutions of different concentrations for developing, and after high-pressure spraying through a developer, removing the photo-sensitive resist region which is not photo-sensitive; according to different raw materials, putting the dried developed raw material into a high-pressure spraying etching machine filled with etching solutions of different concentrations suitable for different raw materials for etching or dipping etching; for the etched raw material, carrying out fabrication processing according to different colors and vision design effects.
Owner:东莞市深芏塑胶科技有限公司

Multi-reference seamless switching phase locking device

The invention discloses a multi-reference seamless switching phase locking device which is characterized by comprising a reference input module, a frequency division module, a phase measurement module, a weighting processing module and a phase locking module. Reference sources provide input signals of different frequencies; the frequency division module divides input reference signals into corresponding 1pps signals and sends the 1pps signals to the phase measurement module; the phase measurement module receives the 1pps signals sent by the frequency division module, compares the 1pps signals with Local_pps signals provided by the phase locking module and works out the phase difference between the Local_pps signals and the 1pps signals; the weighting processing module receives the phase difference measured through the phase measurement module, performs weighting processing on the phase difference and sends the phase difference to the phase locking module; and the phase locking module works out frequency differences according to phase accumulated values and outputs Local_10 Mhz signals and Local_pps signals. The multi-reference seamless switching phase locking device can achieve seamless switching between the reference sources by optimal utilization of various reference sources of different types, and high-precision time references and frequency references are provided for a system.
Owner:西安宏泰时频技术有限公司

Multi-path illumination controlling apparatus using two alternating-current power lines for realizing power supplying and controlling

The invention, which relates to the illumination control field, discloses a multi-path illumination controlling apparatus using two alternating-current power lines for realizing power supplying and controlling. More particularly, the invention relates to a method and system capable of completing power supplying and communication controlling on multi-path illumination lamps only by using two alternating-current power lines. The whole multi-path illumination system, that is the multi-path illumination controlling apparatus, comprises a switch controller, a plurality of lamp controllers, two power lines and a plurality of lamps. An input terminal of the switch controller of the multi-path illumination controlling apparatus is connected with an alternating-current leading-in point; and an output terminal of the switch controller is connected with the two power lines to carry out line laying. A plurality of lamp controller installing points are arranged at the two power lines; input terminals of all the lamp controllers are connected to the two power lines; and illumination lamps are respectively installed at output terminals of all the lamp controllers. According to the invention, problems of many wires and complex wiring, long installing time, high using difficulty, poor flexibility, complex circuit during communication signal receiving and restoring, and high manufacturing cost can be solved.
Owner:何伟军

Light irradiation device used for establishment of experimental animal skin injury model

ActiveCN105156954AHeight adjustableChange the light intensity for the experimentAnimal housingLight fasteningsInfrared lampHigh energy
The invention discloses a light irradiation device used for establishment of an experimental animal skin injury model. The light irradiation device comprises a box body. The top end of the box body is provided with an upper cover device, and the upper cover device comprises an upper cover plate. Fixing pressing plate troughs are installed on both sides of a fixing trough support. Fixing pressing plates are installed in grooves of the fixing pressing plate troughs, and the fixing pressing plates are provided with light control holes. According to the light irradiation device, the side walls of box body are provided with height adjusting holes, and the height between a light source and animals subjected to an experiment can be adjusted through the height adjusting holes; the positions of light source transmission can be controlled through light transmission holes formed in a separation plate; the animals are fixed by adjusting the fixing pressing plates 43, and the positions of light irradiation animal skin injuries are adjusted by adjusting the light control holes 44 in the fixing pressing plates 43 to protect other parts of the animals subjected to the experiment from injuries; the light source in a lamp holder is arranged in the upper cover device, so that ultraviolet / infrared lamps with different wave lengths or high energy ray sources with different wave lengths are replaced or used simultaneously according to the experiment needs.
Owner:CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST

Section storage rack

InactiveCN101823612ALight and strong structureStrong pressure capacityStorage devicesAir springEngineering
The invention discloses a section storage rack. More than two single storage racks are connected in series through a connecting pipe (4) to form a storage rack set; each single storage rack consists of an A-shaped main support frame (1), a space layer supporting beam (2), a supporting foot (7) of the space layer supporting beam (2), a return air spring (3), a connecting buckle (5) and a connecting sleeve (6) positioned on the upper part of the A-shaped main support frame, and the components are arranged in a plurality of layers; one end of the space layer supporting beam (2) is movably connected with the A-shaped main support frame (1), and the other end of the space layer supporting beam (2) is movably connected with one end of the supporting foot (7); the other end of the supporting foot (7) can be fixed to or separated from the supporting beam at the lower layer of the supporting foot (7) through the connecting buckle (5); and the return air spring is arranged between each space layer supporting beam and the A-shaped main support frame. The section storage rack with the structure achieves the purposes of making the stored material get in the rack first and making the stored material get out of the rack first and ensuring small occupation of land, tidy stacking, convenient management of stacking and taking of the different materials and safe and high-efficiency hoisting operation.
Owner:龙工(福建)液压有限公司
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