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961results about How to "Meet development needs" patented technology

Bag-feeding pillow type packaging machine

Disclosed is a bag-feeding pillow type packaging machine. A horizontal bag conveyor is disposed between a bag feeder and a horizontal bag opener. A feeding part of the horizontal bag conveyor is located below the bag feeder. A discharge part of the horizontal bag conveyor is connected with the rear end of the horizontal bag opener. A bag picker is located below the horizontal bag conveyor. The bag picker extends into the bag feeder through the feeding part of the horizontal bag conveyor. The horizontal bag opener is disposed on the conveying direction of the horizontal bag conveyor, a conveying device is disposed in front of the horizontal bag opener, the conveying direction of the conveying device is perpendicular to that of the horizontal bag conveyor, a horizontal feeding device is disposed on one side of the conveying device and located on the conveying direction of the horizontal bag conveyor, a motion direction of the horizontal feeding device is perpendicular to the conveying direction of the conveying device, a sealing device is disposed on the horizontal bag opener, a finished product output device is disposed below the horizontal bag opener, and the conveying direction of the finished product output device is perpendicular to that of the horizontal bag conveyor.
Owner:广东宏川环宇智能装备有限公司

Vibratory drive composite micro-power source based on piezoelectric effect and electromagnetic induction

The invention relates to the micro-energy field, in particular to a vibratory drive composite micro-power source based on the piezoelectric effect and the electromagnetic induction. The micro-power source adapts the requirement of the micro electro mechanical system development for the micro-energy and comprises a substrate, a peripheral base, cantilevers and a mass block, wherein the substrate is fixed with the lower surface of the peripheral base by bonding; a vertical through hole is arranged in the middle of the mass block; an induction coil is processed on the upper surface and/or the lower surface of the mass block; a micro permanent columnar magnet is fixed on the upper surface of the substrate; PZT piezoelectric thin films are arranged on the cantilevers; a plurality of external lead bonding pads are arranged on the peripheral base; and the two ends of the induction coils and the two polarized surfaces of the PZT piezoelectric thin films are respectively connected with the corresponding external lead bonding pads by leads. The power source has reasonable and concise structure, is liable to miniaturization and integration, and can provide power to the micro electro mechanical systems at high output energy density and high output efficiency, realize self power supply of the micro electro mechanical systems and meet the requirement of the micro electro mechanical system development for the micro-energy.
Owner:ZHONGBEI UNIV

Flight management system and method thereof based on multi-task parallel processing

The invention relates to flight management system and method thereof based on multi-task parallel processing. The system comprises an electronic flight instrument system display unit, a multifunctional control display unit, a flight management system processing unit and a display unit with a control button, wherein the multifunctional control display unit is used for maintaining existing functions of formulating and executing a flight plan; and the flight management system processing unit is connected with the multifunction control display unit and used for copying the formulated flight plan and carrying out assessment and dynamic modification on the flight plan. The invention converts the traditional signal processing scheme into a parallel processing scheme: one processing scheme is used for maintaining the traditional functions of formulating and executing the flight plan, and the other processing scheme is used for providing the dynamic modification and assessment functions; and flight personnel can effectively prepare and scientifically assess the change basis by dynamically modifying an assessment scheme, therefore, the invention can satisfy the changeful practical needs and improve the flight safety and the flight operation effectiveness.
Owner:CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST

Communication and control system orienting to intelligent power utilization

The invention discloses a communication and control system orienting to intelligent power utilization. The communication and control system orienting to intelligent power utilization comprises a core circuit board, a household intelligent socket module and a domestic appliance intelligent remote control module. The core circuit board with a C8051F020 single chip microcomputer as a control core is used for completing communication, control and user interaction function. The household intelligent socket module receives a control command through a WIFI (wireless fidelity) module I for realizing power on-off control, and a metering module acquires instantaneous power and judges operating condition of power equipment. The domestic appliance intelligent remote control module receives a control command sent by the core circuit board through a WIFI module II, and drives an electronic switch for controlling a household appliance remote control. By the aid of 3G (the 3rd generation) communication technology, teletransmission is achieved, by the aid of Web (world wide web) server technology based on the single chip microcomputer, user information interaction is achieved, by the aid of wireless local area network technology based on an Adhoc architecture, information exchanging of the control system and an intelligent socket and a household appliance remote control device is achieved, and the communication and control system orienting to intelligent power utilization is advanced, practical and easy to expand.
Owner:CHONGQING UNIV

Smart grid dispatching control system regulation and control integrated join simulation training system

InactiveCN106991859AImprove the efficiency of professional skills trainingImprove the quality of trainingCosmonautic condition simulationsSimulatorsTraining periodControl system
The invention discloses a smart grid dispatching control system regulation and control integrated join simulation training system. The smart grid dispatching control system regulation and control integrated join simulation training system relates to a simulation training system. For the problems that training of dispatchers and monitors breaks away from actual situations, training quality is not ideal, regulation and control service level cannot be improved effectively, and safe, reliable, economical and efficient operation of a power grid is influenced in the prior art, the invention provides such smart grid dispatching control system regulation and control integrated join simulation training system, which comprises a dispatcher training simulation subsystem for dispatcher training simulation, and a monitor training simulation subsystem for monitor training simulation. The dispatcher training simulation subsystem and the monitor training simulation subsystem respectively comprise a power system simulation module, a regulation and control center simulation module and a teacher system module. The monitor training simulation subsystem shares a part of modules of the dispatcher training simulation subsystem. The technical scheme can improve professional skill training efficiency of the power grid monitors and dispatchers, reduce training period and improve training quality, so that a high-quality staff team can be developed within a short time, and safe, reliable, economical and efficient operation of the power grid is ensured.
Owner:TRAINING CENT OF STATE GRID ZHEJIANG ELECTRIC POWER

Method and device for realizing Openflow multistage flow table

InactiveCN103401783AReduce the number of loopbacksImprove search speedData switching networksOpenFlowComputer science
The invention discloses a method and a device for realizing an Openflow multistage flow table. The method comprises the following steps of receiving and analyzing a message to acquire the attribute of the message and carrying out sequential search on at least one-stage flow stage according to the attribute of the message; after the message matching of the last-stage flow table in the sequential search is finished, judging whether to carry out the matching of the next-stage flow table or not, if so, transmitting the message into an ingress port preserved inside a chip through a chip roundtrip channel and carrying out the search of the next-stage flow stable, and otherwise, directly processing the message according to the matched flow behavior. According to the method and the device disclosed by the invention, by combining an Openflow processing mechanism with a roundtrip mechanism, the matching of the multi-stage flow table is realized by one-time roundtrip, so that the roundtrip times of the message are reduced, the utilizable bandwidth is increased, the matching of the Openflow multistage flow table is realized, the search speed of the message is increased and the forwarding of the message is facilitated. In addition, the ever-increasing demand on network application can be met.
Owner:SUZHOU CENTEC COMM CO LTD

Variable weight combined forecasting method-based electric power load short-term forecasting method

InactiveCN107590562AReduce schedule pressureImprove the level of load forecastingMathematical modelsForecastingLocal optimumLoad forecasting
The present invention discloses a variable weight combined forecasting method-based electric power load short-term forecasting method. According to the present invention, aiming at the disadvantages that a conventional single load forecasting model and a fixed weight combined forecasting model are low in forecasting accuracy, and by comprehensively considering the time correlation of the electricpower loads and the influence of other related factors on the electric power loads, and combining various electric power load forecasting models, a variable weight combined forecasting model of the electric power load short-term forecasting is established. Meanwhile, aiming at the disadvantage that a particle swarm optimization variable weight parameter combined forecasting method traps in a localoptimal solution easily, a parameter dynamic adjusting particle swarm optimization algorithm is established, thereby realizing the optimization solution of the weight parameters of the variable weight combined forecasting model, and finally realizing the short-term forecasting of the electric power loads. The combined forecasting model of the present invention is better than a conventional load forecasting method, a fixed weight combined forecasting method and a particle swarm optimization variable weight parameter combined forecasting method, and has the higher forecasting accuracy.
Owner:XI AN JIAOTONG UNIV

Biaxially-oriented polypropylene capacitance film resisting high temperature and preparation method thereof

The invention discloses a preparation method of a polypropylene capacitance film. The preparation method comprises the following steps of: (1) preparing a polypropylene material composite from the following components in parts by weight: 100 parts of polypropylene resin, 0.05-0.15 part of a photoinitiator, 3-5 parts of a cross-linking agent and 0.25-0.35 part of a hindered phenol antioxidant; (2) melting, plasticizing and extruding the polypropylene material composite by an extruder; (3) cooling a extruded melt body and casting into a sheet; (4) stretching the cast sheet in two directions into a film by using a bidirectional stretching equipment; (5) performing ultraviolet (UV) irradiation crosslinking on the stretched thin film; and (6) post-treating the irradiated thin film and reeling the thin film in a reeling machine to obtain a finished product. According to the preparation method of the UV crosslinked BOPP (biaxially-oriented polypropylene) capacitance film, the heat resistance and the breakdown strength of the polypropylene capacitance film are remarkably enhanced, the polypropylene capacitance film can meet the development demands of a strong-current capacitor market on advanced insulating thin film materials, and a new path is opened for high performance of the polypropylene capacitance film. Meanwhile the method is simple and easy to realize and has an extremely high industrial application value.
Owner:HUAWEI POLYIMIDE +1

Correlated flux injection section test method and construction technique

InactiveCN101270658ALittle flow changeReduce areaSurveyWave crestSection plane
A method is used for measuring flow injected into a section. A tracer with polymerization characteristic is released into the oil pipe of a flooding well. A part of the tracer goes through a water faucet, flows into the ring space of an oil sleeve and enters an injection layer when passing by an eccentric distributor. When the tracer is released into the oil sleeve, an instrument with two detectors should be placed at a position through which the tracer flows. When the tracer flows through two detectors in the ring space of the oil sleeve, a reciprocal change signal will be measured by the upper and the lower detectors. The other part of the tracer continues to flow down in the oil tube and the change signal is also measured by the upper and the lower detectors. Two wave crests appear on a well log. Owing to the good polymerization characteristic of the tracer, minor fluid state change combined, the small area of the ring space of the oil tube, short going-through time and the narrow width of the crest, the inner crest value of the oil tube and the crest value of the ring space of the oil sleeve can be determined. As the inner crest value of the oil tube is removed, the time when the tracer goes through the upper and the lower detectors can be worked out. Because the section of flow speed is known, the monolayer injection flow can be worked out according to an arithmetic mode.
Owner:林建伟

Method for rotation modulation signal of MIMO system

The invention relates to a method for a rotation modulation signal of an MIMO system, which comprises the following steps: eliminating the relativity of the fading coefficients of I-path and Q-path channels sending the modulation signals by adopting rotation modulation and Q-path orthogonal component interweaving, and increasing the modulation diversity number to acquire modulation diversity gain; then leading in the time diversity and space diversity of the MIMO system, thereby improving the availability of frequency spectra even though the system achieves high transmission efficiency in the transmission process of a fading channel, realizing high transmission reliability through a plurality of diversities, decreasing an error rate and an error frame rate, approaching to an ideal channel capacity under the fading channel, and satisfying the development requirement of a wireless transmission net. Moreover, the method has simple and practical operation steps, low computational complexity and marked efficiency, can be used for a multiple code modulation technical scheme, is especially suitable for communication systems with high encoding rate code words, multiple antennae, high spectrum effectiveness and the like, and is superior to a BICM-MIMO system on integrated transmission performance.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Vehicle intelligent speed measuring method based on binocular stereoscopic vision system

The invention provides a vehicle intelligent speed measuring method based on a binocular stereoscopic vision system. The method comprises the following steps: training an SSD neural network by takinga license plate as a detection feature to obtain a license plate identification model; calibrating the binocular stereoscopic vision system to obtain the own parameters and external parameters of twocameras; performing license plate detection on an acquired video frame by using the license plate identification model, and locating the license plate position of a target vehicle; performing featurepoint extraction and stereoscopic matching on the license plate position based on a feature matching algorithm; screening and removing retained matching points, and keeping the coordinate of the matching point closest to the center of the license plate; performing stereoscopic measurement on the screened matching points to obtain a position under space coordinates; and calculating the travel distance of the target vehicle within a certain time interval to obtain the running speed of the target vehicle. Through adoption of the method, mounting and debugging are facilitated; a plurality of trained features can be automatically identified at the same time; and the development demand of a future intelligent traffic network and Internet of things can be met better.
Owner:ZHONGYUAN ENGINEERING COLLEGE

Band-pass type tunable optical filter array

The invention provides a band-pass type tunable optical filter array and belongs to tunable optical filters, wherein the band-pass type tunable optical filter array solves the problem that existing tunable optical filters cannot simultaneously meet the requirements for array integration, flat pass-band characteristics and grid-free tuning. The band-pass type tunable optical filter array comprises an optical fiber array, a micro-lens array, a polarization transformation assembly, a beam expanding prism, a cylindrical lens, a diffraction grating, a Fourier lens and an LCOS chip which are arranged on an optical path in sequence. The band-pass type tunable optical filter array is based on the LCOS chip, the free space optics structure is adopted, the structures and parameters of the micro-lens array, the prim, the cylindrical lens, the lens and other optical elements are designed appropriately, pixel regions of the LCOS chip are partitioned and arranged reasonably, and therefore the band-pass type tunable optical filter array is simple and compact in structure, supports wavelength grid-free tuning design, planarization design of pass-band characteristics and array integration design, has good heat stability and polarization stability, meets development requirements of next-generation all-optical networks, and can be widely applied to an optical fiber communication system.
Owner:HUAZHONG UNIV OF SCI & TECH

Broadband wide-angle omni-directional circularly-polarized antenna

The invention relates an omni-directional circularly-polarized antenna, specifically a broadband wide-angle omni-directional circularly-polarized antenna. The antenna solves the problem that existing omni-directional circularly-polarized antenna cannot realize omni-directional polarization on multi-azimuth plane. The broadband wide-angle omni-directional circularly-polarized antenna comprises a round radiation plaster, a medium baseplate and a circular grounding plate, wherein the edges of circular radiation plaster and the circular grounding plate are provided with M upper and lower bending branches; each upper bending branch is composed of a micro-strip line extending along radial direction and an arc short section line clockwise extending along circumferential direction; each lower bending branch is composed a micro-strip line extending along radial direction and an arc short section line anticlockwise extending along circumferential direction; the included angle between the micro-strip lines of upper and lower bending branches is Alpha; N short-circuit via holes in isometric arrangement along circumferential direction are set between the circular radiation plaster and the circular grounding plate. The invention is applicable to wireless communication.
Owner:SHANXI UNIV

Variable-frequency detecting system and method for door opening and closing abnormity

ActiveCN105800434ALow costReduce development and debugging costsElevatorsBuilding liftsControl systemMachining system
The invention discloses a variable-frequency detecting system and a method for door opening and closing abnormity. The system comprises a door machine system and an elevator control system; the door machine system is communicated and connected with the elevator control system through an internal communication connecting wire; the door machine system is used for outputting corresponding current through a variable-frequency controller to control opening and closing actions of an elevator landing door or car door; the elevator control system is used for monitoring variable-frequency data of the variable-frequency controller to detect if abnormity in the door opening and closing process is generated; and if so, the abnormity type is judged, the fault code corresponding to the abnormity type is output, the floor information and the position information of the door machine system are stored, and the fault information is sent to development and debugging persons. The system needs no additional hardware to detect such information as the obstacle type and the operation state of the elevator door machine, saves the product cost, reduces the development and debugging costs, and can continuously maintain and upgrade the functions and algorithms in the later stage to satisfy the product development demands.
Owner:GUANGZHOU GUANGRI ELEVATOR IND
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