32results about How to "Accurate detection" patented technology

There is provided an apparatus for driving a piezoelectric actuator moving a lens for auto-focus, the apparatus including: a lens position sensing unit sensing a position of the lens and generating a sensed lens position value; a lens control unit comparing the sensed lens position value with a target lens position value for auto-focus to determine a moving direction of the lens; and an actuator driving unit generating an actuator driving signal for driving the piezoelectric actuator to move the lens in the moving direction determined by the lens control unit, wherein the lens control unit temporarily stops the operation of the actuator driving unit, and receives the sensed lens position value corresponding to the lens position sensed by the lens position sensing unit and compares the sensed lens position value with the target lens position value while the operation of the actuator driving unit is temporarily stopped.

The invention discloses a key-dialing switch testing device and a testing method thereof. The key-dialing switch testing device comprises a product fixing mechanism, a testing mechanism, a control system and a slide rail driving mechanism electrically connected with the control system; the testing mechanism is installed on the slide rail driving mechanism, the testing mechanism and the product fixing mechanism are opposite to each other; the testing mechanism comprises a bent fixing plate, a bent sliding plate, a first connector, a second connector and a dual-way pull-pressure sensor electrically connected with the control system. The key-dialing switch testing device and the testing method thereof replace the traditional manual detection mode, the switch sliding force and the switch travel of the key-dialing switch can be accurately detected, the detection is reliable, the manpower is saved, and the detection cost is low.

The invention provides a vascular hemophilia factor detection reagent, a preparation method and application thereof. The detection reagent includes two latex microsphere systems with different particle sizes. The vascular hemophilia factor detection reagent prepared through the preparation method is high in repeatability and accurate and rapid in detection, limiting influencing factors are fewer,results are reliable, and the detection reagent is low in cost and beneficial to clinical medical applications.

Disclosed is a nonparametric automatic detection method of focal niduses. The method comprises the steps of using medical nidus images with the niduses marked as samples in advance, building a database of a sample set A1, extracting a local descriptor of the target region and the background region of each image in the sample set A1 respectively, and obtaining a target characteristic bank F1 composed of all the local descriptors of the target regions in the sample set A1, and a background characteristic bank F2 composed of all the local descriptors of the background regions in the sample set A1. A processing method comprises the following specific steps: (1) dividing the medical nidus images I to be processed into a plurality of sub-regions, (2) classifying each sub-region through an NBNN classifier, and (3) computing an objective function to obtain a detection result of the niduses. According to the nonparametric automatic detection method of the focal niduses, a parameterized model needs not to be built in advance, the local descriptors of the images need not to be quantified, the application is flexible, the resolution capability to the local descriptors of the images is strong, and the focal niduses can be accurately detected.

The invention provides a gas detection device. The gas detection device is arranged in a limited current type gas sensor for detecting sulfur oxides contained in exhaust gas of an internal combustion engine, and applies voltage and performs temperature control on an electrochemical cell (11c) at a speed of allowing decomposed products of sulfur oxides contained in the detected gas to be absorbed on a cathode (11a) greater than a speed of allowing the decomposed products to be desorbed from the cathode when gas detection is not executed. The state is kept in a preset duration, and then the decomposed products of the sulfur oxides, absorbed on the cathode can be removed from the cathode. Accordingly, a gas detection device which can accurately detect the sulfur oxides contained in the detected gas is provided.

The invention discloses a client host information change periodic detection method. The method comprises a client and a management end. The method comprises the following specific detection steps: to begin with, by calculating a network card Mac address of a client host and CPU serial number, client ID, which serves as unique identification of the client, is obtained, so that when host IP address changes, the client and the management end can still be communicated normally; the client obtains host information according to a preset period, makes a comparison between the host information and the stored registration information, and sends a change notice to the management end when the host information is different from the stored registration information; and when the change notice is sent successfully, the stored registration information is updated, and meanwhile, the stored registration information is encrypted and stored. Compared with the prior art, the client host information change periodic detection method is simple to realize, allows the feedback of host information change to be more accurate, timely and stable, and is high in practicality and easy to popularize.

The invention relates to the field of Chinese herbal medicine detection, in particular to a method for detecting full ingredient granule Chinese herbal medicine roasted myrrh based on a terahertz spectrum technology. According to the method, the wide frequency band terahertz spectrum technology is utilized to represent full ingredient Chinese herbal medicine granules, fingerprint peaks in the wide frequency band of the full ingredient Chinese herbal medicine granules are obtained, and the full ingredient Chinese herbal medicine granules of different varieties are identified by utilizing the terahertz fingerprint peaks in the wide frequency band. According to the method, the measurement of spectral characterization and variety identification of the full ingredient Chinese herbal medicine granules are achieved, the assistance of chemical reagents is reduced, and the method is a pure physical detection method. The method is simple to operate and has accuracy in data processing, and results are accurate.

The invention discloses a detection method for subsynchronous oscillation of a high-proportion renewable energy power system. Firstly, the voltage signal or current signal at the output end of the high-proportion renewable energy power system is collected, and then the short-time Fourier transform of the voltage signal or current signal is calculated. Transformed time-spectrum, and use the multiple synchronous compression algorithm to map the short-time Fourier transform time-spectrum to a new time-spectrum, and then use the mean shift method to determine the mode of the coefficient after multiple synchronous compression transformation higher than the set threshold, The frequency of subsynchronous oscillation is calculated, and finally the signal of the subsynchronous oscillation mode is reconstructed and the least square estimation method is used to estimate the parameters of each subsynchronous oscillation mode.

The invention relates to a piezoelectric resonance infrared sensor, an array of the piezoelectric resonance infrared sensor and a manufacturing method of the piezoelectric resonance infrared sensor. The piezoelectric resonance infrared sensor comprises a substrate, an electrode and a piezoelectric material, a quantum dot film is formed on the upper surface of the piezoelectric material, and the quantum dot film can accelerate temperature rise of the piezoelectric material in response to infrared light irradiation. The infrared light detection rate of the piezoelectric resonance infrared sensor is improved, noise is reduced, and accurate detection of the wavelength of the infrared light is achieved.

The invention relates to a material detection apparatus. The apparatus comprises a sending door to be detected, wherein when a refractory material to be detected reaches to the sending door to be detected through a conveyor belt, the sending door to be detected is opened, and the refractory material to be detected passes through the sensing door to be detected; a dimension examination sensing door used for detecting the dimension of the refractory material to be detected and giving an alarm when the dimension does not accord with a set dimension threshold; a mobile selection device used for transforming the position of the refractory material which passes through the examination sending door to a preset position; and a cooperation examination sending door used for detecting whether the cooperation between the refractory material to be detected and a fitting piece reaches requirements and giving an alarm in case that the cooperation does not reach the requirements. According to the invention, the refractory material is lifted through a manipulator, the performance of the refractory material is detected through the dimension examination sending door and the cooperation examination sensing door, and the automatic commutation and transposition of the refractory material are realized through the mobile selection device so that the refractory material can be conveniently and accurately detected.

The invention provides a road abnormal area detection method and device, electronic equipment and a storage medium. The method comprises the steps of: obtaining a passage area image of a road according to a front environment image in a vehicle driving process; inputting the passage area image into a first machine learning model to obtain a detection result output by the first machine learning model, the detection result comprising an abnormal area detected from the passage area image. According to the method, the detection of the abnormal area in the road is realized through the trained firstmachine learning model, the first machine learning model is obtained by training multiple groups of first data through machine learning, the abnormal area in the road can be accurately detected, and the improvement of the vehicle driving safety is facilitated based on the detection result.

The invention relates to the technical field of plant biology, and particularly relates to an SNP locus combination for detecting resistance of tomato gray leaf spot disease and application thereof. Based on this, the invention develops a primer combination, a kit and a detection method capable of quickly, intuitively and effectively identifying the genotype state of a target SNP locus. The SNP locus combination can realize quick, accurate and high-throughput detection of a haplotype of an Sm segment of a resistance gene of the tomato gray leaf spot disease, has the advantages of simple operation, low cost, automation, high throughput efficiency, stable marking, safety, no toxicity, harmlessness and the like, can quickly and accurately identify the resistance of the tomato gray leaf spot disease at a high throughput in a tomato seedling stage, reduces the workload of artificial inoculation identification and field transplantation, improves the breeding efficiency, reduces the breeding cost, accelerates the breeding process, and is very suitable for modern commercial breeding application and large-scale genetic improvement research.

An embodiment of the invention relates to the technical field of surveying and mapping engineering, and discloses a satellite gravity observation data abnormal value extraction method and device and electronic equipment. The satellite gravity observation data abnormal value extraction method includes the steps: acquiring first satellite gravity observation data; detecting abnormal values of the first satellite gravity observation data by a wavelet continuous function noise reduction method; calculating new numerical values according to front and back numerical values positioned at abnormal value positions in the first satellite gravity observation data; replacing the abnormal values by the calculated new numerical values to obtain second satellite gravity observation data; detecting and testing the abnormal values of the second satellite gravity observation data by a Dixon testing method. The wavelet continuous function noise reduction method is combined with the Dixon testing method,and the abnormal values in the satellite gravity observation data can be accurately detected.

The invention relates to the technical field of molecular biology, and discloses primers, a probe, a method and a kit for detecting specific genes of lower respiratory tract bacteria. According the invention, on the basis of a Taqman probe real-time fluorescent PCR method, the primers, the probe and PCR detection mixed liquid are designed for acinetobacter baumannii bfs, pseudomonas aeruginosa toxR, candida albicans ITS, aspergillus oryzae mot1, staphylococcus epidermidis se2313, legionella pneumophilia mip, mycoplasma pneumoniae 23S and chlamydia pneumoniae Cpn0308 genes; amplification is implemented via an FAM channel on a fluorescent PCR apparatus; and the target genes are detected in accordance with changes of fluorescent signals. The invention has the characteristics of being high inaccuracy, strong in specificity and high in sensitivity; and rapid and accurate detection can be implemented on various lower respiratory tract specific genes.

The invention provides a method for detecting radio link failure, and relates to the field of communications. The method comprises the following steps of: when the retransmission times of a radio link control protocol data unit (RLC PDU) on a logic channel of user equipment (UE) achieves the preset maximum retransmission times, acquiring the priority of the logic channel by the UE; and if the priority of the logic channel is higher than the priorities of one or more logic channels in other logic channels of the UE, determining that a radio link of the UE has radio link fails.

The invention relates to the field of detection jigs, in particular to a detection jig for a front frame of a display screen. The detection jig comprises an outer frame and an inner frame arranged inside the outer frame, and is characterized in that the front frame of the display screen is disposed between the outer frame and the inner frame; mobile sensors for detecting whether metal pieces exist or not are arranged at the edges of the outer frame and the inner frame; mobile push boards are arranged on the outer frame, and pushing rods push the mobile push boards to move to press the front frame of the display screen. The detection jig is composed of two thin frames independently arranged, the front frame of the display screen is disposed at the position between the two thin frames, and the sensors for detecting whether the metal pieces exist or not are arranged evenly on the outer side of the outer frame and the inner side of the inner frame. The two thin frames are known in dimensions, the distances between the front frame of the display screen and the thin frames can be detected, so that the dimensions of the front frame can be further judged whether to be correct or not. The movable sensors can be controlled, so that the distances at each position between the front frame of the display screen and the thin frames can be sufficiently detected to acquire all dimensional data of the front frame of the display screen.

The invention discloses a PCR (polymerase chain reaction) identification kit and identification method for largehead atractylode in Hebei. Specific primers in the kit are HBZ1 and HBZ2, wherein the sequence of the HBZ1 is 5'-GGACATGACAGAAGTATG-3', and the sequence of the HBZ2 is 5'-TGCTGAGAGAAGCAAATC-3'. The invention provides a method for rapidly and accurately identifying largehead atractylode in Hebei, which can be widely applied to the variety identification in each link of seed selecting and breeding, planting, harvesting, storage, selling and clinical applications of a traditional Chinese medicine largehead atractylode in Hebei, and has great significance in the aspects of identifying the authenticity of traditional Chinese medicines, cracking down counterfeit drugs, strengthening the quality supervision of Chinese traditional medicines, and promoting the modernized development of traditional Chinese medicines.

The invention relates to a massage machine core which comprises a massage arm, a massage driving device for driving the massage arm to perform massage action and a control mechanism; the massage driving device comprises a worm, a worm wheel and a strong and weak driving motor, wherein the worm and the worm wheel are meshed with each other; the worm is set to be movable in its axis direction; the body pressure acting on the massage arm is exerted on the worm through a worm wheel to cause the worm to generate axial displacement, and a body pressure detection device for detecting the body pressure by detecting the axial displacement is arranged; the body pressure detection device comprises a pressure sensor and a touch piece for touching the pressure sensor, wherein the touch piece is installed in a non-rotatable manner and is parallel to the central axis of a worm; and the worm is connected to the touch piece through a thrust bearing so as to transmit the axial displacement of the worm to the non-rotatable touch piece while the worm rotates. The massage machine core has the advantage of stable overall structure. The invention further provides a massage machine.

The invention discloses a paeonia lactiflora pall PCR identification kit and an identification method. The specific primers in the kit are ABS1 and ABS2: ABS1: 5'-CGATGAGCTAAATACGCACC-3', ABS2: 5'-ACCGAGCACCCAGAGCAAT-3'. The invention provides a rapid and accurate method for identification of paeonia lactiflora pall, the method can be widely applied to variety identification of paeonia lactiflorapall traditional Chinese medicine in seed selection, breeding, planting, harvest, storage, sale, clinical application variety identification an application in Chinese medicine breeding, selection ofwhite peony root sales and clinical application links, and is of great significance in identification of traditional Chinese medicine authenticity, fight against counterfeit drugs, strengthening of traditional Chinese medicine quality supervision, and promotion of the modernization development of traditional Chinese medicine.

The invention relates to a simultaneous solid phase extraction and detection method of a plurality of allergic aroma agents in toys and aims to establish a detection method of a plurality of allergic aroma agents in toys so as to conveniently, rapidly, accurately and efficiently detect the content of a plurality of allergic aroma agents in toys at the same time. The purpose of the invention is realized as follows: extracting the content of a plurality of allergic aroma agents in toys by the use of a tetrahydrofuran solvent, purifying through a neutral alumina columella, and determining by gaschromatography-mass spectrometry.

The invention discloses a rare earth automatic weighing and feeding device, a feeding method and a rare earth automatic weighing and feeding system. The device comprises a support frame and a stock bin arranged on the support frame, and also comprises a material shifting device, a weighing device and a controller, the material shifting device comprises a material shifting driving device and a shifting device, and the shifting device is arranged in the stock bin; the weighing device is arranged at the bottom of the stock bin, and is used to detect the weight of rare earth materials in the stockbin and output weight signals; the controller is connected with the material shifting driving device and the weighing device in a signal mode, and is used to receive the weight signals and control the operation of the material shifting driving device, the controller is configured that when a weighing request is received, the material shifting driving device drives the shifting device to reverse or shake, and then the weight signals of the weighing device are read. The material shifting device is arranged to shift the rare earth materials, so that the rare earth materials are smoothly discharged, the controller is connected with the material shifting driving device and the weighing device in a signal mode, and controls the operation of the material shifting driving device, timing and quantitative automatic feeding is achieved, and blocking of an outlet caused by agglomeration during discharging is avoided.

The invention discloses a method for detecting foodborne Yersinia enterocolitica by using loop-mediated constant temperature amplification technology, which belongs to the technical field of bacterial detection. The constant temperature amplification technology is used for detection, and the detection method of the loop-mediated constant temperature amplification product includes: (1) 10,000 × g, 5 minutes, room temperature, positive visible white precipitate at the bottom of the test tube; (2) adding a chromogenic reagent, positive The result is green; (3) 1.5% agarose gel electrophoresis, the result is a ladder-like electrophoresis band; any one of the above three loop-mediated constant temperature amplification product detection methods can be selected for detection. This method has the characteristics of accurate detection, strong specificity and high sensitivity, can quickly and accurately identify specific target bacteria, improves detection efficiency, saves time, and thus solves the current situation that traditional detection methods cannot meet the increasing import and export goods.