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34results about How to "Accurate detection method" patented technology

Test detecting tool for compression-type packer rubber sleeves

The invention discloses a test detecting tool for compression-type packer rubber sleeves. The test detecting tool comprises a center tube (1), a deblocking tube (24) and a canister-shaped hydraulic cylinder sleeve (10). The right end of the hydraulic cylinder sleeve (10) is in seal connection with the deblocking tube (24) by a canister-shaped connecting ring (16); a closed annular cavity (26) is formed between the hydraulic cylinder sleeve (10) and the deblocking tube (24); a canister-shaped piston (13) and a measuring ring (11) which is sleeved outside the deblocking tube (24) are disposed in the annular cavity (26); the piston (13) can push a baffle ring (5), a piston rod (7) and the measuring ring (11) to slide along the axis of the center tube (1); and a through hole (27) is disposed on the sidewall of the deblocking tube (24) and between the piston (13) and the connecting ring (16). The test detecting tool of the compression-type packer rubber sleeves not only can detect a plurality types of packer rubber sleeves, but also has the advantages of simple detection mode, high efficiency, high accuracy, low cost and the like.
Owner:PETROCHINA CO LTD

Driver state detection method, device and system

The invention relates to the field of driver state monitoring, and discloses a driver state detection method, a driver state detection device, a vehicle-mounted terminal and a system. The driver statedetection method comprises the following steps that when a vehicle-mounted terminal detects that a driver is in a driving state, a current driver image is collected; The vehicle-mounted terminal carries out first type detection on the state of the driver based on the driver image and sends driving data including the face characteristics of the driver to the cloud end, so that the cloud end carries out second type detection different from the first type detection on the state of the driver; Wherein the face features are obtained based on the current driver image. The driver state can be detected by simultaneously utilizing the advantages that the vehicle-mounted terminal can quickly respond to the driver state and the cloud end can carry out high-performance calculation on the driver state, so that the timeliness and the accuracy of driver state detection are improved.
Owner:FAURECIA CLARION ELECTRONICS (XIAMEN) CO LTD

Steam cooking utensil and water shortage detection method and device thereof

ActiveCN104146591ASolve problems such as forgetting to insert the water tankSimple structureSteam cooking vesselsSteam cookingEngineering
The invention provides a steam cooking utensil and a water shortage detection method and device of the steam cooking utensil. The water shortage detection method of the steam cooking utensil includesthe following steps that whether a water tank is installed in place or not is detected, if yes, cooking is conducted, and if not, water shortage is displayed; in the cooking process, time intervals between disconnection and connection of a heating pipe of a steam generator are obtained in real time, and if the time intervals are larger than a first preset value, water shortage is displayed. According to the water shortage detection method, firstly whether the water tank is installed in place or not is detected, so that the common problem that a user tends to forget to plug the water tank is solved, and the water shortage report error is effective; final water shortage detection control is conducted at the steam generator end, so that the detection mode is more accurate, and the probabilityof the water shortage misinformation is lowered, and the problems that water is accumulated in the water tank for a long time due to the fact that water shortage is reported too early, and safety andsanitation of the cooked food are affected are solved.
Owner:GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1

Prohibited parking detection method based on intersection-parallel ratio

PendingCN111696135AAvoid jitterSolve the problem of high missed detection rateImage analysisCharacter and pattern recognitionEngineeringSupervised learning
The invention discloses a prohibited parking detection method based on an intersection-parallel ratio, which comprises the following steps: 1, taking one frame of picture every N frames, detecting a vehicle and other targets through a deep learning neural network detection algorithm and a supervised learning mechanism, and extracting the coordinates of the left lower corner and the right upper corner of a rectangular frame of a vehicle target; 2, calculating the intersection-parallel ratios of all target rectangular frames in the current frame of picture and the previous frame of picture, andsorting the intersection-parallel ratios; and 3, when the detected intersection-parallel ratio values are greater than a threshold value and are greater than the threshold value for multiple consecutive times, returning the coordinates of the target object and the rectangular frame, and judging that the vehicle is parked. According to the method, an abnormal parking event can be accurately judged,and a relatively accurate detection method is provided for detecting abnormal parking events through a video on the urban expressway.
Owner:深兰人工智能芯片研究院(江苏)有限公司

Tomato spotted wilt resistance gene Sw-5b close linkage SNP site acquisition and marker development

The invention discloses tomato spotted wilt resistance gene Sw-5b close linkage SNP site acquisition and marker development. The invention provides application of substances for detecting polymorphismor genotype of SNP724 sites in a tomato genome in identification or auxiliary identification on whether spotted wilt resistant Sw-5b genes exist in the tomato genome or not, or application of substances for detecting polymorphism or genotype of SNP724 sites in a tomato genome in preparation identification or auxiliary identification on whether spotted wilt resistant Sw-5b gene products exist in the tomato genome or not. Experiments prove that an SNP marker SNP724 which is interlocked with the tomato spotted wilt resistance gene Sw-5b is developed, the SNP marker can be used for a high-throughput molecule detection platform, and compared with a second-generation molecular marker, the SNP maker has the advantages that the detection mode is simple, convenient and accurate, and the detectionefficiency is high.
Owner:北京通州国际种业科技有限公司 +1

Refrigerant quantity detection method and device for refrigerating system and air conditioner

The invention relates to the technical field of intelligent household appliances, and discloses a refrigerant quantity detection method for a refrigerating system. The method is applied to refrigerating equipment, the refrigerating equipment is provided with a pressure sensor, and when adding of a refrigerant of the refrigerating system is stopped, a compressor of the refrigerating equipment is controlled to operate at a preset frequency; after the compressor operates for a preset duration, a first pressure value collected by a pressure sensor is obtained; and according to the corresponding relation between the pressure values and the refrigerant, the refrigerant amount corresponding to the first pressure value is determined as the current residual refrigerant amount of the refrigerating system. According to the scheme, the refrigerant amount in the refrigerating system can be determined according to the pressure value collected by the refrigerating system after a he maintainer adds the refrigerant, and a more accurate refrigerant amount detection mode is provided for the user, so that the user can determine the residual refrigerant amount information of the refrigerating system, whether the refrigerant amount added by the maintainer is appropriate or not is judged, and the requirements of the user are met. The invention further discloses a refrigerant quantity detection device for the refrigerating system and the air conditioner.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2

Base plate and edging detection method, alignment method and device thereof

The invention provides a base plate and an edging detection method, alignment method and device thereof. The base plate comprises a substrate base plate body and at least one edging detection figure arranged on the substrate base plate body. The edging detection figure is arranged at the edge of the substrate base plate body and made of electrically conductive materials. Due to the fact that the edging detection figure is arranged at the edge of the substrate base plate body and made of the electrically conductive materials, after the base plate is subjected to edge grinding, the abrasion degree of the edging detection figure can be determined by detecting the resistance of the edging detection figure, and thus the abrasion degree of the base plate is determined. Compared with the prior art, the edge grinding detection method is more accurate, an implement method is simple, and the cost is low.
Owner:BOE TECH GRP CO LTD +1

Anti-electric stealing measuring method for electric energy meter

The invention provides an anti-electric stealing measuring method for an electric energy meter. The method comprises the following steps: S1, starting running of the electric energy meter; S2, determining whether a preset electric stealing condition that the magnetic field strength of the electric energy meter is greater than 150m'T is satisfied, proceeding with S3 if so, otherwise returning to the S1; S3, determining whether a preset selection compensation mode is automatically started, proceeding with S4 if so, otherwise proceeding with S6; S4, using a compensation measurement formula P=U*Imax to calculate a pulse output quantity, recording voltage and current parameters, and proceeding with S5; S5, exiting the compensation mode, using a normal measurement formula P=U*I to calculate thepulse output, and proceeding with S7; S6, recording a start time T3 and an end time T4 of the time period that meets the preset electric stealing condition, and recording a current instantaneous maximum value Imax and a voltage value U within T3 and T4; and S7, ending. By providing a compensation mode, the anti-electric stealing measuring method for an electric energy meter can automatically calculate the power loss of the electric energy meter during the electric stealing time period, or record various parameters of the electric energy meter during the electric stealing time period, so as tofacilitate subsequent recovery.
Owner:NINGBO SANXING INTELLIGENT ELECTRIC

Flexible screen curling position detection device and method, equipment and medium

The invention provides a flexible screen curling position detection device and method, equipment and a medium, and the device comprises: a signal generator disposed at one end of a flexible screen; asignal receiver which is arranged at the other end of the flexible screen; a metal wire which is connected with the signal generator and the signal receiver; a metal strip arranged at the rollable endof the flexible screen, wherein the included angle between the metal strip and the metal wire is larger than a preset angle; and a processor connected with the signal generator and the signal receiver, wherein the processor is used for determining the current curling position of the flexible screen according to the difference between the acquired first current signal received by the signal receiver and the second current signal transmitted by the signal generator. Therefore, the detection of the curling position of the flexible screen is realized, the detection mode is simple and accurate, the method is suitable for detecting the curling position of any curling length, and the application range is wide.
Owner:BOE TECH GRP CO LTD

Handheld dust collector and dust collection cup state detection method

The invention relates to a handheld dust collector and a dust collection cup state detection method, belongs to the technical field of dust collectors, and aims to solve the problem that an existing dust collector cannot automatically detect whether a dust collection cup bottom cover leaks air or not. The handheld dust collector comprises a dust collection cup, a detection unit, a control unit, amotor unit, a power supply unit, a warning unit and a main shell. The detection unit can detect whether the dust collection cup leaks air or not in real time and send a generated signal to the controlunit; the control unit controls the motor unit to be turned on or turned off and judging whether to send an instruction to the warning unit according to the signal transmitted by the detection unit;and the warning unit sends out corresponding warning information according to an instruction of the control unit. The motor unit can be prevented from being started under the condition that the bottomend of the dust collection cup leaks air, unnecessary loss of electric energy can be avoided, time and physical strength of a user are saved, and the dust collection effect of the dust collector canbe guaranteed.
Owner:XIAOGOU ELECTRIC INTERNET TECH BEIJING CO LTD

Startup detection device of dust removal instrument, dust collector and startup detection method

The invention relates to a startup detection device of a dust removal instrument, a dust collector and a startup detection method, belongs to the technical field of cleaning equipment, and aims to solve the problem that an existing dust collector cannot automatically detect whether a dust collection cup body is assembled in the dust collector. The startup detection device comprises a sensing unit,a control unit and a warning unit, and the sensing unit is used for detecting whether the dust removal instrument is provided with a dust collection cup or not and transmitting a generated signal tothe control unit; the control unit controls whether the motor of the dust removal instrument is started or not according to the signal transmitted by the sensing unit, and the control unit can send aninstruction to the warning unit; and the warning unit sends warning information according to the instruction of the control unit. By arranging the sensing unit, the control unit and the warning unit,whether the dust collection cup is assembled or not can be detected when the dust collector is started, the motor is prevented from being started under the condition that the dust collection cup is not assembled, and unnecessary loss of electric energy and waste of time and physical strength of a user are avoided.
Owner:PUPPY ELECTRONICS APPLIANCES INTERNET TECH (BEIJING) CO LTD

Ground automatic neutral section passing device

A ground automatic neutral section passing device comprises a locomotive position detection module which is used for acquiring locomotive position information through pressure detection and generating a corresponding locomotive position signal; a control module is connected with the locomotive position detection module and is used for generating a corresponding switch control signal according to the locomotive position signal; a neutral section passing execution module, wherein a control port of the neutral section passing execution module is connected with the control module, a plurality of power ports of the neutral section passing execution module are connected with the first power supply area, the neutral area and the second power supply area respectively, and the neutral section passing execution module is used for switching electric connection between the neutral area and the first power supply area and between the neutral area and the second power supply area according to the switch control signals. The device directly judges the position of the locomotive through the weight, so that the device is not easy to be interfered by adjacent vehicles, uplink and downlink vehicles are not easy to interfere with each other, and the reliability is higher. Meanwhile, the detection mode of the device is more direct and accurate compared with the previous detection mode, and the later maintenance workload is small.
Owner:ZHUZHOU CSR TIMES ELECTRIC CO LTD

Method for detecting saxitoxin on basis of embedded dye and DNA interaction

The invention discloses a method for detecting saxitoxin on the basis of embedded dye and DNA interaction. The method comprises the following specific steps: dissolving DNA in a buffer solution at first, then adding the saxitoxin in the buffer solution, carrying out interaction on the saxitoxin and DNA for 25-35 minutes, when interaction time is up, adding the embedded dye in the buffer solution, waiting for 25-35 minutes, then carrying out fluorescence spectrometry, and calculating the concentration of the saxitoxin through the peak value of the measured spectrum according to a standard curve. The concentration of the saxitoxin can be measured quantitatively through measurement to fluorescent light, complicated instruments and construction of a detecting platform are not required, the detection mode is simple, rapid and accurate, therefore, the technological difficulty that traditional measurement depends on complicated and high-cost instruments is avoided, and complexity on fixing of DNA and construction of the detecting platform is avoided.
Owner:HEFEI NORMAL UNIV

Volume detection method, device and circuit and terminal equipment

The invention discloses a volume detection method, device and circuit and terminal equipment. The volume detection circuit comprises a linkage potentiometer, a power supply and a controller, wherein the linkage potentiometer comprises a first variable resistor and a second variable resistor; a first fixed end of the first variable resistor is connected with an audio signal input end; a second fixed end of the first variable resistor is grounded; a regulating end of the first variable resistor is connected with an audio processing circuit; a first fixed end of the second variable resistor is connected with the power supply; a second fixed end of the second variable resistor is grounded; a regulating end of the second variable resistor is connected with an input end of the controller; and the controller is used for determining a current volume value according to a current rotating angle of the linkage potentiometer. Therefore, real-time detection on the volume is implemented by the linkage potentiometer; the detection mode is simple and accurate; interference to audio output quality is avoided; convenience, rapidness and accuracy of volume detection are improved; and the diversity of the volume detection method is expanded.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Cooling system of pivoting equipment

A cooling system of pivoting equipment is suitable for providing cooling fluid for cooling the pivoting equipment. The cooling system comprises a thermal elongation measuring device, a cooling machine and a control unit. The thermal elongation measuring device is combined on the pivoting equipment and is used for measuring the elongation generated after the the pivoting equipment is heated in the rotating process. The cooling machine is connected with the pivoting equipment and can be controlled to provide cooling fluid for the pivoting equipment. The control unit is in signal connection with the thermal elongation measuring device and the cooling machine, and the control unit controls the cooling machine to provide the cooling fluid for the pivoting equipment according to the elongation measured by the thermal elongation measuring device. The cooling system contributes to cooling the pivoting equipment, the service life of the pivoting equipment is prolonged, and the thermal elongation of the pivoting equipment can be restrained through cooling of the cooling machine so that the machining precision can be improved.
Owner:黄国轩

Method for detecting gloss oil printing process

The invention provides a method for detecting a gloss oil printing process. The method specifically comprises the following steps: after a plate material is loaded on a machine table, black card paperis taken to pass a machine; then whether a pattern printed by transparent ink on the black card paper is complete or not can be judged through naked eye observation; and when the pattern is complete,the pattern is qualified. The detection method disclosed by the invention is adopted for detecting the gloss oil printing of the plate material, and whether the gloss oil pattern is complete or not can be rapidly judged, so that the stability of subsequent production can be ensured, and the product quality can be ensured.
Owner:SHANTOU DONGFENG PRINTING CO LTD

Converter detection device and method applicable to distributed power island detection

PendingCN107390141ASimple structureIntegration of test operationPower supply testingCurrent transducerDisplay device
The invention provides a converter detection device and method applicable to distributed power island detection. The device comprises a current device and a signal detection unit, wherein the signal detection unit comprises a frequency signal detection circuit, a voltage transducer, a current transducer, a synchronous signal sampling circuit, a signal conditioning circuit, an A / D converting circuit, a DSP control chip and a displaying device. The method comprises the steps of collecting voltage signals, current signals and sampling frequency signals output by a converter through the voltage transducer, the current transducer and the frequency signal detection circuit; conducting synchronous processing on the voltage signals and the current signals output by the converter through the synchronous signal sampling circuit; making the DSP control chip conduct calculation according to digital values of voltage values, current values and frequency values which are subjected to analog-digital conversion to detect whether a distributed power supply is in an island state or not. The converter detection device is simple in structure, convenient to use, and effective, and tests and operation are integrated; the converter detection device can effectively make the detection method diversified and accurate.
Owner:STATE GRID LIAONING ELECTRIC POWER RES INST +2

Automatic pressure pin, choke plug and pressure plate system for camshaft

The invention relates to an automatic pressure pin, choke plug and pressure plate system for a camshaft, which comprises a system support frame, wherein a pressure plate device, a gluing device, a pressure pin device, a pressure choke plug device and a leak detection device are mounted on the system support frame; an angular locating detection mechanism is arranged in the pressure plate device; and a manipulator for conveying the camshaft among the devices, and an industrial personnel computer for controlling the devices and the manipulator to work automatically are arranged on the system support frame. According to the system, multiple processing procedures during a camshaft processing course are integrated, so that continuous operation of camshaft processing is achieved; an automatic feeding mechanism is adopted in the processing procedures, so that automatic feeding and locating of a workpiece are achieved, potential safety hazards during a workpiece feeding course are reduced, the processing time is saved, and the manpower investment is reduced; and the leak detection device and the angular locating detection mechanism are adopted, so that automatic detection on the camshaft is achieved after the corresponding processing procedures of the camshaft, and a qualified rate of the finished camshaft is ensured.
Owner:BEIJING BEINEI ENGINE PARTS

Measuring device and method for stratified steam distribution valve flow rate

The invention provides a determination device and method for a layered steam distributing valve. The determination device comprises an outer sleeve, a valve base, a main pipe and a bypass branch pipe;the valve base is located in the outer sleeve, the upper end of the valve base is in sealing connection with a sleeve opening of the outer sleeve, a through runner is formed in the valve base in theaxial direction, an axial insertion groove allowing the layered steam distributing valve to be inserted is formed in the side adjacent to the runner, an upper connector is connected into the upper endopening of the runner of the valve base in an inserted mode, the upper end of the axial insertion groove is communicated with an inner cavity of the outer sleeve, and the lower end of the axial insertion groove is communicated with the runner; the main pipe is arranged at the sleeve bottom of the outer sleeve in the axial direction, and the upper end of the main pipe is connected to the lower endopening in an inserted mode; the bypass branch pipe is close to the lower end of the outer sleeve, connected to the side wall of the outer sleeve in an inserted mode in the radial direction, and communicated with an inner cavity of the outer sleeve. Accordingly, the corresponding relationship of the steam injection capacity and the steam injection flow of the layered steam distributing valve canbe tested, and the determination device and method have the advantages of being simple in detection mode, reliable and accurate.
Owner:PETROCHINA CO LTD

Determination device and method for layered steam distributing valve

ActiveCN107830901AEasy to fixReliable Ground Test DataVolume/mass flow by differential pressureEngineering
The invention provides a determination device and method for a layered steam distributing valve. The determination device comprises an outer sleeve, a valve base, a main pipe and a bypass branch pipe;the valve base is located in the outer sleeve, the upper end of the valve base is in sealing connection with a sleeve opening of the outer sleeve, a through runner is formed in the valve base in theaxial direction, an axial insertion groove allowing the layered steam distributing valve to be inserted is formed in the side adjacent to the runner, an upper connector is connected into the upper endopening of the runner of the valve base in an inserted mode, the upper end of the axial insertion groove is communicated with an inner cavity of the outer sleeve, and the lower end of the axial insertion groove is communicated with the runner; the main pipe is arranged at the sleeve bottom of the outer sleeve in the axial direction, and the upper end of the main pipe is connected to the lower endopening in an inserted mode; the bypass branch pipe is close to the lower end of the outer sleeve, connected to the side wall of the outer sleeve in an inserted mode in the radial direction, and communicated with an inner cavity of the outer sleeve. Accordingly, the corresponding relationship of the steam injection capacity and the steam injection flow of the layered steam distributing valve canbe tested, and the determination device and method have the advantages of being simple in detection mode, reliable and accurate.
Owner:PETROCHINA CO LTD

Human body safety inspection machine capable of preventing shoes from being clamped

InactiveCN106249310ANo chance of getting caughtNo possibility of pinchingConveyorsPackagingHuman bodyEngineering
The invention relates to a human body safety inspection machine capable of preventing shoes from being clamped, which comprises a transmitting device, a receiving device and a passageway device transversely located between the two, wherein the passageway device comprises a belt conveying mechanism, and two standing platforms located at two ends of the belt conveying mechanism respectively; two sides of the belt conveying mechanism are respectively provided with a first fence frame and a second fence frame convex to the inner side; the first fence frame is close to the transmitting device; the second fence frame is close to the receiving device; heights of the two fence frames are no higher than the height of a thigh of an adult; and the interval between the two fence frames is the front-after distance when the adult stands; the two fence frames are flush with two ends of the belt conveying mechanism respectively or extend out to be crossed with the two standing platforms with a certain distance. The human body safety inspection machine capable of preventing shoes from being clamped has the effects that shoes of an inspected person can be effectively prevented from being clamped on the passageway device; the inspected person can be prevented from falling; the safety of the inspected person is ensured; and the detection efficiency is ensured.
Owner:ANHUI QILOOTECH PHOTOELECTRIC TECH

A metering method for electric energy meter anti-stealing

The invention provides a metering method for anti-stealing electric energy meters, comprising the following steps: S1, the electric energy meter starts to run; S2, judges whether the preset electricity stealing condition is satisfied, that is, the magnetic field strength of the electric energy meter is greater than 150m'T; if satisfied , then enter S3; if not satisfied, return to S1; S3, whether the preset selection compensation mode is automatically activated, if activated, then enter S4; if not, then enter S6; S4, use the compensation measurement formula P=U*I max Calculate the pulse output, and record the voltage and current parameters, enter S5; S5, exit the compensation mode, use the normal measurement formula P=U*I to calculate the pulse output, enter S7; S6, record the time to meet the preset electricity stealing conditions segment start time T 3 and end time T 4 , record T 3 ~T 4 Instantaneous maximum value of current within I max , voltage value U; S7, end. The present invention is provided with a compensation mode, which can automatically calculate the power loss of the electric energy meter during the electricity theft time period, or record various parameters of the electric energy meter during the electricity theft time period, so as to facilitate subsequent recovery.
Owner:NINGBO SANXING INTELLIGENT ELECTRIC

Flexible screen curl position detection device, method, equipment and medium

The present application proposes a flexible screen curl position detection device, method, equipment and medium, wherein the device includes: a signal generator set at one end of the flexible screen; a signal receiver set at the other end of the flexible screen; connecting the signal The metal wires of the generator and the signal receiver; the metal strips arranged at the rollable end of the flexible screen and having an angle greater than a preset angle with the metal wires; and the signal generator and the signal receiver respectively A connected processor; the processor is configured to determine the current curling position of the flexible screen according to the obtained difference between the first current signal received by the signal receiver and the second current signal emitted by the signal generator . Thus, the detection of the curling position of the flexible screen is realized, and the detection method is simple and accurate, and is suitable for detecting the curling position of any curling length, and has a wide application range.
Owner:BOE TECH GRP CO LTD

Pneumocystis carinii recombinant protein as well as preparation method and application thereof

The invention relates to the technical field of medical treatment, and provides a Pneumocystis carinii recombinant protein. The amino acid sequence of the protein is as shown in SEQ ID NO: 1. The invention also provides a preparation method of the Pneumocystis carinii recombinant protein. The method comprises the following steps: establishment of a Pneumocystis animal model, DNA extraction, primer design and PCR amplification, purification of a target gene segment, connection, transformation and identification of the target gene segment and a cloning vector, connection, transformation and identification of the target gene segment and an expression vector, inducing expression of the target protein, SDS-PAGE identification of the target protein, and purification of the target protein. Meanwhile, the invention further provides three applications of the Pneumocystis carinii recombinant protein. The protein has the following advantages: the Pneumocystis carinii recombinant protein can be used for early detection of Pneumocystis infection, and can be used for preparing preventive vaccines, or can be used as a drug for relieving clinical symptoms caused by Pneumocystis caramei infection.
Owner:安徽医科大学第四附属医院
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