39results about How to "Simplify system complexity" patented technology

The invention relates to a method for transmitting a plurality of antenna signals in a wireless Base Transceiver Station (BTS) using Remote Radio Head (RRH) technology and the corresponding system. The method includes the steps of: transmitting signals over the transmit channel using Synchronous Digital Hierarchy (SDH) / Optical Transmission Network (OTN), multiplexing the plurality of antenna signals adopting the manners of time division multiplex or GFP frame-level multiplex; forming the multiplexed antenna signal stream and in-band control signaling stream into Generic Framing Procedure (GFP) frame; or forming the plurality of antenna signals and the plurality of respective control signals on the in-band control signaling channel into a plurality of respective GFP frames in parallel; and further mapping the GFP frames to STM-N / OTM-n frames, therefore multiplexing the plurality of antenna signals and the in-band control signaling stream to realize the SDH / OTN-based transmission. According to the invention, in the circumstance of using a plurality of antennas for transmitting signals, the strict time and phase relations between various antenna signals can be ensured, and also system complexity can be simplified, the transmission delays from various antenna signals to CBTS are totally the same.

The invention relates to a method for transmitting a plurality of antenna signals in a wireless Base Transceiver Station (BTS) using Remote Radio Head (RRH) technology and the corresponding system. The method includes the steps of: transmitting signals over the transmit channel using Synchronous Digital Hierarchy (SDH) / Optical Transmission Network (OTN), multiplexing the plurality of antenna signals adopting the manners of time division multiplex or GFP frame-level multiplex; forming the multiplexed antenna signal stream and in-band control signaling stream into Generic Framing Procedure (GFP) frame; or forming the plurality of antenna signals and the plurality of respective control signals on the in-band control signaling channel into a plurality of respective GFP frames in parallel; and further mapping the GFP frames to STM-N / OTM-n frames, therefore multiplexing the plurality of antenna signals and the in-band control signaling stream to realize the SDH / OTN-based transmission. According to the invention, in the circumstance of using a plurality of antennas for transmitting signals, the strict time and phase relations between various antenna signals can be ensured, and also system complexity can be simplified, the transmission delays from various antenna signals to CBTS are totally the same.

The present invention relates to an electrostatic capacity type encoder which includes a variable capacitance mechanism made on two dimensional planes, random time varying excitation generation system, interlaced fine & coarse cycles and digital signal processing unit. A variable capacitance mechanism which includes stationary and rotating disks facing each other and forming one or more variable capacitors. The transmit electrodes are split to two transmit phases and the receive electrodes to two receive phases, both can be implemented on two dimensional printed circuit boards without third dimension via interconnects. The combination of the 2 by 2 grid provides the four combinations required to detect both position and direction. Another configuration is made of electrostatic capacity type encoder which includes a first and second stationary disks and in between a third rotating disk, made either of a dielectric material with varying geometry or thickness or from a conductive patterns printed on a PCB. A time varying excitation system with no fundamental frequency is described to improve the robustness to external noise and omit the necessacity of excessive shielding. Interlacing mechanism is explained to put several different encoders channels on the same perimeter, minimizing encoder mechanical dimensions. To complete the sensor a digital signal processing unit is presented, where the capacitance value is converted to conventional encoder formats.

A system for generating electrical energy comprises an electrochemical reformer for converting fuel into a fuel gas. The fuel gas is supplied to a separator, which removes fuel components from the gas flow to a generator, which uses the fuel gas for generating electrical energy. Electrical power needed for the operation of the reformer is supplied by the generator. An external electric load can also be supplied with electrical energy.

The invention discloses a photovoltaic power station logic diagram-based array automatic detection and numbering method. The method comprises the steps of firstly performing zoning on a photovoltaic power station main logic diagram to obtain a zoning image, removing color information of the zoning image to obtain a grayscale image, and performing binary threshold segmentation on the grayscale image to obtain a binary image with separated background and foreground (namely, an array profile); secondly, extracting a rectangular profile of the binary image, eliminating a false profile and noise interference by calculating modal information of the rectangular profile, and extracting an accurate array rectangle; and finally performing row and column numbering on each array, calculating geodetic coordinates of four vertexes of an array, converting the geodetic coordinates into GPS coordinates, and storing row and column numbers and GPS coordinate information in data files. According to the method, the position and number information of the array can be provided for applications such as automatic route planning of an unmanned aerial vehicle during shooting of a photovoltaic power station infrared image for performing cruising, hotspot detection and locating, and the like; and the technical support is provided for improving the automation level of photovoltaic power station fault detection.

A door control system provided with door phone device addressing and door control service and a controller, a door phone device and a communication platform. The communication platform provides link between the controller and the door phone device. The communication platform, after allowing the controller to log in, stores controller identification information; or, the communication platform, after allowing the door phone device to log in, stores door phone device identification information; for the door phone device logged in to the communication platform to link with the controller to be searched by the IP connection method of the controller identification information, or for the controller logged in to the communication platform to link with the door phone device to be searched by the IP connection method of the door phone device identification information.

A channel emulating device includes a first choosing module, a first signal integrating module, a first parameter adjusting module, a second choosing module, a second signal integrating module, a second parameter adjusting module and a third choosing module. The first signal integrating module generates at least one first integrated signal in accordance with a first input signal and at least one second input signal. The first and the second parameter adjusting modules respectively generate at least one first parameter signal and at least one second parameter signal. The second signal integrating module generates a plurality of second integrated signals in accordance with the first parameter signal and the second parameter signal. One of the second integrated signals acts as a first output signal. The third choosing module receives the second parameter signal and outputs the second parameter signal through a fifth channel or receives the rest of the second integrated signals and outputs the rest of the second integrated signals through a sixth channel to act as at least one second output signal.

Microfluidic devices and methods for focusing components in a fluid sample are described herein. The microfluidic device has at least one flow focusing channel where the components are focused or re-oriented by the geometry of the channel. From an upstream end of the flow focusing channel to a downstream end of the flow focusing channel, at least a portion of the flow focusing channel has a reduction in height and at least a portion of the flow focusing channel narrows in width, thereby geometrically constricting the flow focusing channel. The devices and methods can be utilized in sex-sorting of sperm cells to improve performance and increase eligibility.

The invention provides a thrombus removing system, which comprises a double-cavity suction pump, a fluid storage device, an operation tube and a waste liquid recovery device, the double-cavity suction pump comprises a piston rod, a first cavity and a second cavity, one end of the piston rod is connected with a driving device, the other end of the piston rod sequentially penetrates through the first cavity and the second cavity, and a first sealing cavity and a second sealing cavity are formed between the piston rod and the first cavity and between the piston rod and the second cavity respectively; when the piston rod moves from one side of the second cavity to one side of the first cavity, the first sealing cavity and the second sealing cavity are enlarged; when the piston rod moves from one side of the first cavity to one side of the second cavity, the first sealing cavity and the second sealing cavity become smaller; the second cavity is communicated with a fluid storage device through a first guide pipe and communicated with an operation pipe through a second guide pipe, and a valve is arranged at the communication position of the first guide pipe and the second cavity; the first cavity is communicated with the operation pipe and a waste liquid recovery device through a third guide pipe and a fourth guide pipe, and the third guide pipe and the fourth guide pipe are provided with a first one-way valve and a second one-way valve respectively.

The invention relates to an intelligent pneumatic supercharging device with the adjustable injection pressure. The intelligent pneumatic supercharging device with the adjustable injection pressure comprises a compressed air tank (4), an electronic control unit (7), a nozzle (10) and a pneumatic supercharging valve (11), wherein the nozzle (10) is arranged on the pneumatic supercharging valve (11)and faces the engine inlet direction; an outlet of the compressed air tank (4) is connected with the nozzle (10); a pressure adjusting valve (6), or a proportional electromagnetic valve, or an electric ball valve is arranged on a pipeline for connecting the compressed air tank (4) and the nozzle (10); a pressure sensor I (5) is arranged at the outlet of the compressed air tank (4); the pressure sensor I (5) and the pneumatic supercharging valve (11) are electrically connected with the electronic control unit (7); and the pressure adjusting valve (6), or the proportional electromagnetic valve,or the electric ball valve is electrically connected with the electronic control unit (7). The more-refined air inlet pressure closed-loop adjustment is realized, the optimal air inflow under the current working condition is provided for an engine, and the control quality is improved.

The invention discloses an SAR radar data encryption device based on an SOC chip and a method thereof. The device comprises an SOC chip with the integration of an FPGA IP and an MCU IP, a program FLASH memory connected to the FPGA IP, a configuration FLASH memory connected to the MCU IP, an RS-485 receiver connected to the FPGA IP, a first RS-485 interface connected to the RS-485 receiver, an RS-485 transmitter connected to the FPGA IP, a second RS-485 interface connected to the RS-485 transmitter, an RS-232 transceiver connected to the MCU IP, and an RS-232 interface connected to the RS-232 transceiver. According to the device and the method, the SOC chip with the integration of the FPGA IP and the MCU IP is employed, thus the work of data encryption, key management and interface communication is completed by using a single chip, the real-time encryption of the imaging data of an SAR radar system is realized, the system complexity is simplified, and the time and cost of system development are effectively reduced.

The invention relates to an AGV (Automated Guided Vehicle) navigational location device based on a UWB (Ultra Wide Band), and belongs to the technical field of AGV navigational location devices. The AGV navigational location device is used for transmitting data through sending and receiving an extremely narrow pulse with a nanosecond grade or below rather than needing to use a carrier wave in a conventional communication system, so as to have a bandwidth-wide band UWB with a GHz magnitude. Numerous complicated application environments exist in the implementation of an AGV project; the navigational location device based on the UWB, as using a wireless communication way, can be used for effectively solving a wiring difficult problem in construction, and is used for simplifying systematic complexity and shortening the engineering implementation period. Compared with a conventional communication technique, the AGV navigational location device has a great difference; an AGV is enabled to have, in guide navigation, the advantages of being simple and convenient in path planning, flexible and reliable in system and being capable of simultaneously providing high-precision location functionsin both static and dynamic location aspects and avoiding a complicated engineering construction problem.

The present invention proposes a fluorescence microscopic imaging device and method by using delayed fluorescence. The prepared delayed fluorescent sample is directly added to a sample microcavity atthe surface of an image sensor, the fluorescence intensity can be maintained for a period of time after the excitation light source is extinguished by using the delayed fluorescence self-characteristic, a working mode of the image sensor is arranged to collect fluorescence signals after the excitation light source is extinguished so as to achieve the fluorescence signal detection. The fluorescencemicroscopic device does not need a traditional imaging lens system and does not an optical filter for filter of excitation light so as to greatly save the cost, simplify the system complexity, improve the convenience of the system, achieve the statistical observation of large field of view and large volume samples and provide some reference and convenience for biomedical analysis, drug screeningand cell processing in certain scene.

The invention provides a resonant optical gyroscope based on the Fano resonance effect, which comprises a coupler C1, a first reflecting unit, a second reflecting unit, a coupler C4, an optical resonant cavity, a coupler C2, a coupler C3, a first photoelectric detector, a second photoelectric detector and a signal processing circuit, wherein the coupler C1 is used for equally dividing a laser beaminto a first laser beam and a second laser beam; the first reflecting unit and the second reflecting unit are respectively used for receiving the first laser beam and the second laser beam; the coupler C4 is used for receiving the first-direction laser beam and the second-direction laser beam, and the first-direction laser beam and the second-direction laser beam are respectively light beams which are formed after the first laser beam and the second laser beam are respectively transmitted by the first reflecting unit and the second reflecting unit; the optical resonant cavity is used for receiving the light beams output by the coupler C4; the couplers C2 and C3 are respectively used for receiving the first-direction laser beam and the second-direction laser beam output by the coupler C4;the first photoelectric detector and the second photoelectric detector are respectively used for receiving the second-direction laser beam and the first-direction laser beam output by the couplers C2and C3 and respectively converting the second-direction laser beam and the first-direction laser beam into electric signals; and the signal processing circuit is used for performing difference operation processing so as to determine the rotation angular velocity of the optical gyroscope. According to the invention, the complexity of an optical gyroscope system is simplified, and the linearity of gyroscope output is improved.

The invention provides an ultra-far deep space laser communication capturing and tracking system which obtains position information and attitude information through a star sensor and a navigation gyroscope, and obtains solar facula and earth facula positions through a visible light focal plane detector and an infrared focal plane detector. And the spaceborne computer calculates a coarse tracking pointing signal to control the coarse tracking turntable to drive the optical antenna, and calculates a fine tracking error signal to control the deflection direction of a transmission light beam of the electro-optical deflector, so that light beam capture tracking in laser communication from an ultra-far deep space away from the earth by 30-250 astronomical units to the earth is realized. An existing beacon light emitting system is omitted, the weight, the size and the power consumption of a laser communication system are effectively reduced, the star sensor and the navigation gyroscope are combined to obtain attitude and position information, a focal plane detector is used for replacing a common QAPD detector to obtain tracking errors, the capturing and tracking sensitivity and precision are effectively improved, and the tracking precision is improved. The method can be widely applied to ultra-far deep space detectors such as asteroid detectors and solar system marginal detectors.

The invention provides a message parsing system and a message parsing method. The message parsing system comprises a download parsing sub-system and an information notice server. The download parsing sub-system is used for downloading message data from a file transmission server and parsing and packaging the message data to form a message packaging bag. The message data is classified according to business attributes, the parsing sequence is preset according to business attributes, and the message packaging bag has a corresponding information theme according to the business attribute of the message data. The information notice server is used for receiving the message packaging bag and distributing the message packaging bag to a business sub-system subscribing for the information theme according to the information theme of the message packaging bag, and thus the corresponding business subsystem carries out message processing of the message packaging bag. When message parsing system is compared with the prior art, the systematic complexity is simplified, operation is simple and the message processing efficiency is raised.

A channel emulating device includes a first choosing module, a first signal integrating module, a first parameter adjusting module, a second choosing module, a second signal integrating module, a second parameter adjusting module and a third choosing module. The first signal integrating module generates at least one first integrated signal in accordance with a first input signal and at least one second input signal. The first and the second parameter adjusting modules respectively generate at least one first parameter signal and at least one second parameter signal. The second signal integrating module generates a plurality of second integrated signals in accordance with the first parameter signal and the second parameter signal. One of the second integrated signals acts as a first output signal. The third choosing module receives the second parameter signal and outputs the second parameter signal through a fifth channel or receives the rest of the second integrated signals and outputs the rest of the second integrated signals through a sixth channel to act as at least one second output signal.

The invention provides an optical frequency comb generator based on silicon nitride. The optical frequency comb generator comprises a reflector surface, a gain medium, a filter, a generator, and a controller which are arranged successively, wherein the generator is used for generating an optical frequency comb; the controller is connected to the gain medium and the filter; the reflector surface isused for reflecting laser light from a pumping source; the gain medium is used for amplifying the reflected laser light; the filter outputs the laser light to the generator; and the generator is a silicon nitride device. The optical frequency comb generator based on silicon nitride can greatly simplify the system complexity of the optical frequency comb and reduce the cost by using a silicon nitride chip.

The invention discloses a whole vehicle real-time simulation system, which is characterized by comprising an environment model, an engine model and a whole vehicle model, and is characterized in thatthe environment model provides the virtual driving environment parameters required by simulation for the whole vehicle model, the engine model provides a torque signal required by simulation for the whole vehicle model, and the vehicle model simulates the vehicle driving based on the virtual driving environment parameters provided by the environment model and the torque signal provided by the engine model, and feeds back the simulated vehicle rotating speed signal and the simulated accelerator signal to the engine model. Compared with a simulation system in the prior art, the whole vehicle parameters needing to be input are greatly reduced, so that the system complexity and the construction cost of the whole vehicle simulation model are simplified, and the whole system is simpler and is easier to use.

The invention provides a selective spreading device, which is applied to a 3D printing process. The selective spreading device comprises a developing drum, a developing module, a material bed, and a driving device; the developing surface of the developing drum is in a truncated cone shape and rotates around a first axis; the developing module is used for forming a printing material layer of a preset pattern on the developing surface of the developing drum during rotation of the developing drum; the material bed rotates around a third axis and is cooperated with the developing drum for receiving the printing material layer on the developing drum; and the driving device is used for driving relative motion between the developing drum and the material bed so that the distance between the developing drum and the material bed can be enlarged step by step or continuously enlarged during printing. The selective spreading device in the invention can greatly improve the printing speed, is suitable for multiple forming methods and is stronger in application type.

The invention relates to a multifunctional base node device for a wireless sensor network. The device can be accessed to any sensors according to a specification provided by a node module, a node working mode is configured, and corresponding physical data are acquired; a signal is transmitted to a processing module through an AD converter; then processed information is transmitted to a wireless module; and the wireless module transmits the information to a user, so that the user can master required information in real time. According to the multifunctional base node device for the wireless sensor network, the structure is simple, the installation is convenient, the function is enhanced, the problem of arbitrary combinations of multiple sensors is mainly solved, the device can be used in an outdoor complex environment through simple configuration, and market promotion is facilitated.

The invention provides a selective material spreading device, which is applied in the 3D printing process, comprising: a developing drum, the developing surface of which is in the shape of a truncated cone and rotates around a first axis; a developing module, used for rotating the developing drum During the process, a printing material layer with a preset pattern is formed on the developing surface of the developing drum; the material bed rotates around the third axis and cooperates with the developing drum to receive the printing material layer from the developing drum; the driving device is used for Drive the relative movement between the developing drum and the material bed, and increase the distance between them step by step or continuously during the printing process. The invention can greatly improve the printing speed, and is applicable to various molding methods at the same time, and the application type is stronger.

The invention provides a passive label positioning device, system and method and a motion trail positioning method. The positioning device comprises a passive label; an array antenna which comprises a first-direction antenna array, a second-direction antenna array, a third-direction antenna array, a fourth-direction antenna array and a fifth-direction antenna array, a second direction antenna array which is used for acquiring the incident angle of the passive tag in the second direction. According to the invention, only one positioning array antenna is used to complete the positioning of the passive tag in the coverage field, and there is no need to place a plurality of reader-writers and reference tags. Therefore, even if the vehicle pasted with the passive label is in a high-speed driving state, the positioning device can still accurately collect label information and calculate position information of the vehicle, and meanwhile the driving track of the vehicle can be obtained.

A transmitter pen positioning system includes a transmitter pen, at least two photo-receiving modules, and a signal processing unit. The transmitter pen generates a light beam signal. Each photo-receiving module has an optical lens and a photo-receiving sensor. The photo-receiving sensor receives the light beam signal passing through the optical lens via a first photo-receiving surface and a second photo-receiving surface and correspondingly converts the light beam signal into a first photocurrent signal and a second photocurrent signal. The signal processing unit receives the first and the second photocurrent signals, and correspondingly calculates an incident angle of the light beam signal according to a difference between the first and the second photocurrent signals and calculate position information of the transmitter pen according to the at least two incident angles. Accordingly, the complexity of the positioning system is simplified and a real-time position calculation is implemented.

The invention relates to a small high-energy X-ray device, and the device comprises an X-ray source magnet system, an X-ray tube and a power supply system; the X-ray source magnet system comprises six iron core yokes, two magnetic pole heads, two to four magnetic pole pads, two expansion coils and two circular excitation coils, and the six iron core yokes are distributed in a hexagonal star radial shape to form a cylindrical inner space; the two circular excitation coils are arranged in a cylindrical inner space formed by the two magnetic pole heads and the six iron core yokes and are coaxial with the magnetic pole heads; and the two expansion coils are arranged on the conical surfaces of the two magnetic pole heads and are coaxial with the magnetic pole heads. On the one hand, the size of the magnet can be reduced, the circumferential uniformity of magnet field distribution is improved, and the purpose of reducing the size of equipment is achieved, and on the other hand, electrons are injected through the falling edge of the current of the expansion coil, electrons are led out through the rising edge of the current of the expansion coil, and the X-ray yield is improved.