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30results about How to "Strong ability" patented technology

Low-altitude target detecting system of three-coordinate continuous wave one-dimensional phase sweeping unmanned aerial vehicle

The invention discloses a low-altitude target detecting system of a three-coordinate continuous wave one-dimensional phase sweeping unmanned aerial vehicle, and is aimed at providing a detecting device high in data detecting rate and anti-interference capacity. By means of the technical scheme, the system measures a target distance through a frequency modulation continuous wave ranging system, anantenna feedback subsystem converts radio frequency signals into electromagnetic wave signals to be radiated to the space, a receiving subsystem conducts amplifying, frequency varying and SFC controlprocessing on echo signals output by an emission and wave control subsystem, a signal processing subsystem generates the working time sequence of the whole system, measures the three-coordinate vectors of the distance, direction and pitching of a target position and calculates frequency modulation continuous wave ranging data of target signals, and a data processing and communication control subsystem parses the target angle, establishes the trajectory of target movement, controls the working mode of a radar and detects three-coordinate target information according to the target signals calculated by the signal processing subsystem and the antenna angle information output by the antenna control subsystem.
Owner:LINGBAYI ELECTRONICS GRP

Satellite navigation receiver carrier loop tracking device in high dynamic environment

The invention discloses a satellite navigation receiver carrier loop tracking device in a high dynamic environment, which comprises a discriminator, a loop filter, a numerically-controlled oscillator and an open loop acceleration estimator, wherein the discriminator is used for generating a phase difference or a frequency difference between a receiving signal after stripping a pseudo code and a local reproduction carrier signal, and sending the phase difference or the frequency difference to the loop filter; the loop filter is used for generating a receiving signal speed estimation value and an acceleration estimation value according to output of the discriminator; the numerically-controlled oscillator is used for acquiring frequency of the local reproduction carrier signal according to output of the loop filter, generating a local reproduction carrier signal and inputting the signal to the discriminator; and the open loop acceleration estimator is used for estimating a Doppler frequency change rate of the receiving signal and assigning the Doppler frequency change rate to the loop filter. The loop has a strong high dynamic signal tracking ability, the loop performance can be effectively improved, and when the receiving signal has an acceleration of tens of g and even hundreds of g or the receiving signal has a large dynamic change, the receiving signal can be tracked.
Owner:湖南北云科技有限公司

Rotating machine bearing fault diagnosis method

ActiveCN107515118ASimple Mode DescriptionSimple area calculationMachine bearings testingFeature vectorModel description
The embodiment of the invention provides a rotating machine bearing fault diagnosis method, which includes steps of collecting vibration signal of a rotating machine bearing under a current running state, and using multiple vibration signals within a preset time period as to-be-detected data samples; grouping the to-be-detected data samples and calculating the box dimension number of every group of data according to a fractal dimension algorithm; calculating the average value and the variable coefficient of the box dimension number; comparing the average value of the box dimension number and the variation coefficient of the to-be-detected data samples with the standard box dimension number and the standard variation coefficient, so as to determine the state of the rotating machine bearing, wherein the standard box dimension number and the standard variation coefficient are acquired through calculating the vibrating signal of the rotating machine bearing under the normal running state. The rotating machine bearing fault diagnosis method applies the box dimension number and the variation coefficient as the feature vectors to describe the bearing fault state; the model description and zone calculation are simple, and the breaking capacity is strong; the fault can be accurately monitored; therefore, the reliability is high.
Owner:JIANGXI UNIV OF TECH

Peeling type waterborne cleaning agent for optical glass

The invention discloses a peeling type waterborne cleaning agent for optical glass. The peeling type waterborne cleaning agent is prepared from the following raw materials in percentage by weight: 3 percent to 8 percent of isomeric alcohol polyoxyethylene ether, 2 percent to 5 percent of fatty alcohol polyoxyethylene polyoxypropylene ether, 1 percent to 3 percent of isomeric alcohol polyoxyethylene ether phosphate, 1 percent to 3 percent of fatty acid methyl ester polyoxyethylene ether sodium sulfonate, 0.5 percent to 2 percent of polyethylidene polyqudinedrnium, 0.2 percent to 1 percent of a fluorocarbon type surfactant, 5 percent to 10 percent of a washing assistant, 2 percent to 5 percent of a metal chelating agent and the balance of water. The peeling type waterborne cleaning agent for the optical glass, disclosed by the invention, has extremely low surface tension and prominent capabilities in the aspects of wetting effect and permeability; the peeling type waterborne cleaning agent has an extremely low emulsifying capability and basically does not emulsify oil dirt; a peeling type oil dirt washing manner is adopted and the consumption of useful-effect components in the cleaning agent is effectively reduced, so that the service life of the cleaning agent is greatly prolonged and the sewage treatment cost is greatly reduced; the popularization and application of the waterborne cleaning agent are facilitated; meanwhile, the peeling type waterborne cleaning agent does not contain water body polluting components including phosphorus, APE (Alkylphenol Ethoxylates) and the like, so that the peeling type waterborne cleaning agent has environment-friendly components and is easy to degrade.
Owner:SHANGHAI YUKING WATER SOLUBLE MATERIAL TECH

Method for realizing CSN.1 protocol processor in satellite communication system

The invention provides a method for realizing a CSN.1 protocol processor in a satellite communication system. According to the method, decoding and coding are conducted by means of a CSN.1 description file, a message function library and a message structural body; a bit stream to be decoded sent by an RRC layer or an RLC/MAC layer is received during decoding; the message structural body calls an M-operating function relevant to decoding used during decoding and conducts grammatical transformation on the decoded bit stream according to the CSN.1 grammatical rule to obtain a structural body under the C language through compiling, and then transforms the user-defined structural body into a CSN structure according to the M-operating function provided in the message function library; the CSN structure obtained through message structural body transformation is received during coding, coding is conducted by calling the CSN-DESCR field and an M-operating function relevant to coding automatically, the CSN structure is transformed into a structure capable of identified by a CSN.1 system, and finally the coded bit stream is transmitted and fed back to the RRC layer or the RLC/MAC layer. By the adoption of the method, the working efficiency of the whole system is improved greatly.
Owner:NANJING PANDA ELECTRONICS +1

Robot chassis for multifunctional operation in paddy field and agricultural robot

The invention discloses a robot chassis for paddy field multifunctional operation and an agricultural robot, the robot chassis comprises a walking device, a profiling device and a control system, and the control system is connected with the walking device and the profiling device; the profiling device comprises a parallel four-bar mechanism, an electric push rod, a profiling module and a suspension mechanism, the parallel four-bar mechanism is installed in the middle of the walking device, the profiling module and the suspension mechanism are installed on the parallel four-bar mechanism, and the suspension mechanism is used for installing an operation machine tool; when the electric push rod is located at the shortest position, the parallel four-bar mechanism is lifted to enable the operation machine tool to keep a certain height from the ground, when the electric push rod is located at the extension position, the parallel four-bar mechanism is put down to enable the operation machine tool to make contact with the ground and operate, and the profiling module detects fluctuation of the ground in real time and feeds back the fluctuation to the electric push rod for telescopic adjustment. Therefore, the profiling device plays a role in profiling. According to the robot chassis, the intelligent level of an agricultural robot is improved.
Owner:SOUTH CHINA AGRI UNIV

PCB-based current detection device

PendingCN109752586AStrong resistance to external magnetic field interferenceStrong abilityCurrent/voltage measurementPhysicsElectric signal
The invention discloses a PCB-based current detection device, wherein the device comprises a PCB body, a conducting wire, a first magnetic resistor, a second magnetic resistor and a signal processingmodule; the conducting wire is printed on the first surface of the PCB body, and used for introducing current to be detected; the first magnetic resistor and the second magnetic resistor are arrangedon the second surface of the PCB body; the second surface is opposite to the first surface; the distances of the first magnetic resistor and the second magnetic resistor between projection in a plane,where the conducting wire is, and the conducting wire are different; both the magnetic sensitive directions of the first magnetic resistor and the second magnetic resistor are parallel to the PCB body; furthermore, the magnetic sensitive directions of the two are same; the first magnetic resistor and the second magnetic resistor are connected in series; the two ends, which are connected in series, are connected to a power supply; and the input end of the signal processing module is connected between the first magnetic resistor and the second magnetic resistor, and used for obtaining an outputto-be-detected current value according to an electric signal between the first magnetic resistor and the second magnetic resistor. The external magnetic interference resistant capability of the PCB-based current detection device provided by the invention is relatively high.
Owner:NING BO SINOMAGS ELECTRONICS TECH CO LTD

Method for producing split-phase furnace transmutation decorative composite materials from red mud by roller kilns

The invention belongs to the technical field of building ceramic production, and particularly relates to a method for producing split-phase furnace transmutation decorative composite materials from red mud by roller kilns. The method includes placing raw materials, which include the red mud, feldspar, vanadium and titanium slag, quartz, borax, lepidolite and talc, in frit furnaces, melting the rawmaterials at the temperatures of 1400-1500 DEG C, then carrying out water quenching and crushing, carrying out sieving to obtain sieve residues and mixing the sieve residues with one another to obtain split-phase furnace transmutation raw materials; placing raw materials, which include feldspar, clay, flint clay, pyrophyllite and aragonite, in ball mills, carrying out ball milling for 36 h, thencarrying out spray granulation, placing granules in dies and carrying out compression molding to obtain green bodies; arranging the obtained split-phase furnace transmutation raw materials on the green bodies and drying and firing the green bodies with the split-phase furnace transmutation raw materials by the roller kilns to obtain the split-phase furnace transmutation decorative composite materials. The method has the advantages that all the requirements on the usability and the decorativeness of the traditional ceramic can be met by the split-phase furnace transmutation decorative compositematerials produced by the aid of the method, glaze coloring materials are omitted in production procedures, and accordingly the method is a green and environment-friendly production process.
Owner:ZIBO GOLD LION KING TECH CERAMICS CO LTD

Auxiliary device for active braking of electric vehicle based on artificial intelligence

The invention relates to the technical field of artificial intelligence, and discloses an auxiliary device for active braking of an electric vehicle based on artificial intelligence, the auxiliary device comprises a power rod, a power mechanism is welded on the outer wall of the power rod, a braking mechanism is meshed with the inner wall of the power mechanism, and a locking mechanism is rotatably connected with the inner wall of the braking mechanism. According to the auxiliary device for active braking of the electric vehicle based on artificial intelligence, when a main control disc rotates clockwise, a damping disc is driven to rotate clockwise, the damping disc rotates clockwise to drive a driving gear to rotate clockwise, the driving gear drives an auxiliary gear ring and a locking mechanism to rotate anticlockwise, the auxiliary gear ring drives a movable pawl to apply anticlockwise extrusion force to the transmission gear ring, the transmission gear ring drives the transmission gear to rotate anticlockwise so as to drive the brake disc to rotate clockwise, and rapid braking of the automobile is further promoted. The situation that the braking time of the automobile is prolonged due to misoperation of a driver is avoided, and the protection effect on the driver is better.
Owner:杭州星舞科技有限公司

Method and device for producing drinking water through deep purifying by DMI and activated carbon composite bed

The invention provides a method and a device for producing drinking water through deep purifying by a DMI and activated carbon composite bed, and belongs to water treatment methods and devices. The method comprises the following steps: sterilizing and disinfecting; removing arsenic; removing heavy metal; and absorbing with activated carbon to remove organic substances, bacteria, virus left in water, and residual heavy metal and free chlorine, thus obtaining the drinking water which comprehensively meets the standard, and is pure and clean, healthy and tasty. The device comprises a raw water pump, an activated carbon absorbing separating device, etc. With the adoption of the method and the device, the efficiency of removing heavy metal such as iron, manganese and arsenic is high, and the removing rate is more than 99.8%; the heavy metal index of the drained water is below 0.01 ppm, which is beyond the current international standard of drinking water; no wastewater is drained, except the backwashing wastewater; and the backwashing is intermittently carried out at fixed period, and the backwashing wastewater accounts for 2% of the total water inlet quantity. Therefore, the water production rate is high; and the water resource can be saved.
Owner:星汉阿卡索环境科技(北京)有限公司
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