Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

30results about How to "Adapt to the development trend" patented technology

Transmission device used for orthogonal frequency-division multiplexing system

The invention discloses a transmission device used for an orthogonal frequency-division multiplexing system, comprising a code layer mapping unit, a coding modulation unit, a flow mapping unit, a multi-input multi-output processing unit and a source mapping unit, wherein the code layer mapping unit divides a transmitted transmission block into a common data packet and a reinforced data packet, divides the common data packet and then divides the reinforced data packet; the coding modulation unit is used for carrying out coding modulation processing to every division result of the common data packet and every division result of the reinforced data packet; the flow mapping unit is used for regrouping every coding modulation result of the common data packet and every coding modulation result of the reinforced data packet; the multi-input multi-output processing unit is used for carrying out multi-input multi-output processing to every coding modulation result of the common data packet after being regrouped and every coding modulation result of the reinforced data packet after being regrouped; and the source mapping unit is used for inserting pilot frequency into every multi-input multi-output processing result of the common data packet and every multi-input multi-output processing result of the reinforced data packet according to a preset pilot frequency pattern and transmitting the multi-input multi-output processing results by a subcarrier source.
Owner:ZTE CORP

Unbalanced data classification method based on clustering downsampling

The invention discloses an unbalanced data classification method based on clustering downsampling. The unbalanced data classification method comprises the following steps: utilizing a quick search anddiscovery density peak value clustering algorithm for clustering various categories of samples of a training set to obtain a clustering result; dividing multiple categories of samples in the trainingset into N clusters; forming a new sample set by each cluster of sample of multiple categories of samples in the training set and small categories of samples in the training set, and utilizing a support vector machine for classification to obtain the support vectors of multiple categories of samples in the training set; extracting the new training set formed by the support vector of each clusterand the small categories of samples in the training set; training the new training set through the support vector machine, and carrying out performance evaluation through a cross verification set. Thetraining time of the classifier can be shortened, in addition, the identification rate of small categories of samples can be improved under a situation that the identification rate of multiple categories of identification samples is not harmed, and the performance of the classifier is improved.
Owner:WUYI UNIV

Lightning arrester performance parameter detecting device

The invention discloses a lightning arrester performance parameter detecting device which comprises a current monitor which is used for carrying out collection and harmonic analysis compensation calculation on the resistive current and capacitive current of an MOA lightning arrester and outputting a calculated value to a current monitor of an MOA lightning arrester state online monitoring centralized control terminal, the MOA lightning arrester state online monitoring centralized control terminal used for transmitting a monitored value to a computer after data processing, and the computer used for checking and controlling a current monitor of the MOA lightning arrester remotely, wherein the MOA lightning arrester is connected with a plurality of current monitors which are connected with the MOA lightning arrester state online monitoring centralized control terminal, and the MOA lightning arrester state online monitoring centralized control terminal is connected to the computer. According to the lightning arrester performance parameter detecting device, by means of the triple harmonic analysis method and the unique compensation calculation technique, the change of the resistive current and the capacitive current is calculated to judge the early-stage fault of the MOA lightning arrester, real-time central monitoring of all MOA lightning arresters in a transformer substation is achieved, the operation is simple, safety and reliability are achieved, and cost performance is high.
Owner:STATE GRID CORP OF CHINA +1

High-yield planting and cultivating method of tea-oil trees

The invention discloses a high-yield planting and cultivating method of tea-oil trees. The mountainous area and mountain land or low mountains and hills of a southern tea-oil tree planting region are selected, a plurality of tea-oil tree planting regions are divided out along the contour line in the vertical direction of the mountainous area and mountain land or low mountains and hills, horizontal ladder regions for planting the tea-oil trees are dug in each tea-oil tree planting area towards mountains, biological fences for preventing and treating water and soil loss are planted on side slopes between the adjacent tea-oil tree planting areas, and green manure or commercial crops are planted between biological fence rows and tea-oil tree rows of the tea-oil tree planting areas. The water and soil loss is prevented and treated by increasing fertilizer, loosening soil, increasing the nutrient inventory of the growth soil layer of the tea-oil trees and improving the physical and chemical properties of the soil, the aims of promoting the tea-oil trees to bloom early and fruit as many as possible, increasing the yield of the tea-oil trees, improving the quality of the tea-oil trees, reducing the input amount of fertilizer and reducing labor force input are achieved, and the method can be widely applied to the production practice of the tea-oil trees at home and abroad.
Owner:刘敏

Energy-conservation eco-friendly intelligent monitoring device for indoor environment

The invention discloses an energy-conservation eco-friendly intelligent monitoring device for indoor environment, and belongs to the field of communication technology. The device comprises a master control module (1), a formaldehyde gas monitoring module (2), a temperature and humidity measuring module (3), a communication module (4), a display module (5) and a power module for wireless energy harvesting (6). The device is capable of effectively measuring present indoor environment and timely reminding users as the quality of the present indoor environment dose not reach the standard. The energy-conservation eco-friendly intelligent monitoring device for indoor environment has the advantage of promoting the advance of measurement technique of indoor environment, thereby directly having a positive influence on development of an industry of environmental monitoring, and boosting development of the industry in an electronic market.
Owner:JILIN UNIV

High-yield cultivation technology method for camellia oleifera

Provided is a high-yield cultivation technology method for camellia oleifera. The method comprises the steps that a low-mountain hilly terrain in Yuexi county is selected, multiple camellia oleifera planting regions are divided along contour lines in the vertical direction of mountain land or a low-mountain hilly area, a horizontal terraced strip used for planting camellia oleifera is dug in each camellia oleifera planting region towards a mountain, a biological fence for preventing and controlling the water and soil loss is planted on a side slope between every two adjacent camellia oleifera planting regions, and green manure or commercial crops are planted between the lines of the biological fences and camellia oleifera in the camellia oleifera planting regions. According to the high-yield cultivation technology method for the camellia oleifera, by means of afforestation land selection, land preparation, afforestation and tending management, the water and soil loss is prevented and controlled, the purposes of promoting early blooming and more fruiting of the camellia oleifera, increasing the yield of the camellia oleifera, improving the quality of the camellia oleifera, reducing the input amount of chemical fertilizer and reducing labor input are achieved, and the method can be widely applied in production practice of the camellia oleifera at home and abroad.
Owner:YUEXI GUANGSHENG TEA OIL CO LTD

Energy supply equipment for automobile

The invention discloses energy supply equipment for an automobile. The energy supply equipment for the automobile comprises a supporting structure, a wind power generation device and a solar power generation device, wherein the supporting structure is mounted at the top end of the automobile; the wind power generation device is arranged on the supporting structure; and the solar power generation device is arranged at the top end of the automobile; the wind power generation device comprises an air guide cylinder and a plurality of impellers which are accommodated in the air guide cylinder and are arranged in a rotatable manner; the air guide cylinder is of a frame-shaped structure which is open in the front and in the rear; the solar power generation device comprises a solar cell panel anda solar heat energy collector, wherein the solar cell panel is arranged on the top surface of the automobile and positioned on the front side of the wind power generation device; the solar heat energycollector is arranged on the front side of the solar cell panel; the wind power generation device and the solar power generation device are correspondingly connected with a standby storage battery inthe automobile; each standby storage battery is connected with a storage battery for providing power in the automobile; and a power generator is arranged on a rotating shaft of each impeller. According to the energy supply equipment for the automobile, wind power and sunlight can be converted into electric energy to be stored in the storage battery for the automobile to use; and the energy supplyequipment for the automobile is energy-saving and environmentally friendly and adapts to the development tendency of the current society.
Owner:安徽祥吉汽车服务有限公司

Flame-retardant sofa cover fabric and production method thereof

The invention discloses a flame-retardant sofa cover fabric and a production method thereof. The flame-retardant sofa cover fabric is formed by compounding a base cloth and flame-retardant coatings onboth sides of the base cloth, wherein the base cloth is woven from chemical fibers, the flame-retardant coating is formed by coating with a flame-retardant coating material, and the flame-retardant coating material comprises the following raw materials: a polyurethane resin, glass fiber powder, asbestos fiber powder, magnesium hydroxide, aluminum hypophosphite, N,N'-ethylenebis(stearamide), higher alcohol, dimethylformamide and a polyurethane resin dilution liquid. The production method comprises: S1, preparing the raw materials of a flame-retardant coating material; S2, preparing the flame-retardant coating material; and S3, compounding the flame-retardant coating. According to the present invention, the flame-retardant sofa cover fabric has advantages of excellent flame retardant performance, excellent temperature resistance, excellent wear resistance and strong bonding force between the base cloth and the flame-retardant coating; and the production method has characteristics of convenient operation, short time and high efficiency.
Owner:HAINING MEILI KNITTING CO LTD

Substation lightning arrester data synchronous acquisition and transmission equipment and control method thereof

InactiveCN105487441AMeet the needs of measurement and controlLow costProgramme controlTransmission systemsVIT signalsLightning arrester
Provided are substation lightning arrester data synchronous acquisition and transmission equipment and a control method thereof, which relate to the technical field of substation lightning arrester running state data acquisition and transmission and especially relate to the intelligent substation lightning arrester running state data synchronous acquisition and transmission technology. The substation lightning arrester data synchronous acquisition and transmission equipment comprises a sensor module, a signal processing module and a ZigBee wireless transmission module. The sensor module is formed by a Hall current sensor wounded by a coil; the sensor module transmits the collected voltage and current signals of a lightning arrester to the signal processing module; and after being amplified by a power amplifier in the signal processing module, the voltage and current signals are transmitted to an upper computer in a monitoring center through the ZigBee wireless transmission module. The signal processing module comprises a multichannel AD and conditioning circuit module, a clock synchronization module, a high-speed CPLD module, a DSP module, an IEC61850-9-2 protocol processing module, other types of protocol processing modules and an FPGA module.
Owner:SUQIAN POWER SUPPLY COMPANY OF JIANGSU PROVINCE POWER +4

Miniaturized four-low-frequency multi-port base station antenna

The invention relates to a compact four-low ultra-wideband base station antenna which is mainly composed of a reflecting plate, low-frequency radiation arrays, isolating strips and an electric bridge.The four groups of low-frequency radiation arrays are arranged on the same plane of the reflecting plate, and the single column of radiation units are arranged at equal intervals and are arranged onthe same axis; the first radiation array and the second radiation array are arranged side by side, the third radiation array and the fourth radiation array are arranged side by side, and the second radiation array and the third radiation array are arranged in a staggered mode. And the isolation strips are arranged among the four groups of arrays. By adopting the PCB vibrator, the weight of a product can be effectively reduced, the transportation cost is reduced, and the installation is convenient; isolation strips are arranged between the arrays; the second column of radiation units and the third column of radiation units are arranged in a staggered way so that the boundary effect between the antenna arrays can be effectively reduced, the mutual coupling of the high-frequency array and thelow-frequency array can also be reduced, and the two columns of radiation units arranged side by side are connected through the bridge so that the antenna size can be reduced to the maximum extent, wind resistance can be reduced, construction and installation are facilitated and production cost can be reduced.
Owner:江苏泰科微通讯科技有限公司

Automobile power supply device

A power supply device for automobile includes a support structure mounted on the top of the vehicle, a wind power generation device provided on a support structure and a solar power generation deviceprovided on a top end of a vehicle, The wind power generation device comprises a wind guide cylinder and a plurality of impellers which are accommodated in the wind guide cylinder and can be rotated,the air deflector is a frame structure with front and rear openings, A solar power generation device includes a solar panel disposed on the top surface of a vehicle and located on the front side of the wind power generation device, and a solar thermal energy collector disposed on the front side of the solar panel. The wind power generation device and the solar power generation device are respectively connected with a standby battery in the automobile, each standby battery is connected with the battery in the automobile, a generator is arranged at the rear end of the rotating shaft of the impeller, a vibration power generation device is arranged on the strut, and a drainage hole is arranged at the rear end of the wind guide cylinder. The automotive power supply device can be converted intoelectric energy by wind and sunlight, so as to be stored in a storage battery for automotive use, thereby saving energy and protecting the environment.
Owner:安徽祥吉汽车服务有限公司

Manufacturing method for multi-layer high-density interconnected printed circuit board

A method for manufacturing a multi-layer high-density interconnection printed circuit board. One or two circuit surfaces of a substrate are provided with a first wiring layer, and a first wiring layer is formed on the first wiring layer for interconnection between the wiring layers. A conductive bump, comprising: forming an insulating medium layer covering the first wiring layer and the first conductive bump on a substrate; forming a conductive layer on the insulating medium layer; forming a first insulating layer on the conductive layer and forming a first insulating layer on the first forming a second wiring layer pattern on the insulating layer; depositing a conductive material to form a second wiring layer; forming a second insulating layer on the second wiring layer and the first insulating layer; etching the second insulating layer to form an opening, the The opening exposes the second wiring layer; the second conductive bump is deposited in the opening; the second insulating layer is removed, and the first insulating layer and the conductive layer located under the first insulating layer are removed; and the steps are repeated to form multiple layers high-density interconnect printed circuit board. The method greatly simplifies the process flow.
Owner:JIANGNAN INST OF COMPUTING TECH

Power supply device used for automobile

The invention provides a power supply device used for an automobile. The power supply device comprises a supporting structure installed at the top end of the automobile, a wind power generation devicearranged on the supporting structure and a solar power generation device arranged at the top end of the automobile. The wind power generation device comprises an air guide barrel and multiple impellers contained in the air guide barrel and rotationally arranged. The air guide barrel is of a frame-shaped structure with the front side and the rear side opened. The solar power generation device comprises a solar cell panel arranged on the top face of the automobile and located on the front side of the wind power generation device and a solar thermal energy collector arranged on the front side ofthe solar cell panel. The wind power generation device and the solar power generation device are connected with corresponding standby storage batteries in the automobile. Each standby storage batteryis connected with a storage battery providing power in the automobile. An electric generator is arranged at the rear end of a rotary shaft of each impeller. Each strut is provided with a vibration electric generation device. By the adoption of the power supply device used for the automobile, wind power and sunlight can be converted into electric energy which is stored in the storage battery to beused by the automobile, energy is saved, and the power supply device is environment-friendly and suitable for the development trend of the modern society.
Owner:安徽祥吉汽车服务有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products