63results about How to "The detection effect is intuitive" patented technology

The invention relates to a method for detecting girder cracks based on image processing, and belongs to the field of malfunction diagnosis technology and signal processing analysis technology. The method comprises the following steps: firstly establishing a feature training sample set of girder cracks, and manufacturing a Ground Truth set of sample images, establishing a girder crack detection classifier based on a structural random forest; then performing stitching on crack images within each time period among acquired images; using the generated girder crack detection classifier to perform rough edge detection for girder cracks on the stitched crack images to obtain a rough edge detection result; finally conducting accurate crack selection and location on the rough edge detection result. According to the invention, a well trained girder crack detection classifier can extract crack information in square girders in an efficient, rapid and accurate manner, eliminates malfunction in an in-time and rapid manner, and increases economic benefits and guarantees personal safety of working staff.

The invention discloses a gear appearance defect detection and sorting system based on machine vision, belonging to the technical field of machine vision detection. The gear appearance defect detection and sorting system based on machine vision is characterized by comprising an ARM (advanced RISC machine) controller (1), an image capture module (2), a display module (3), a sound-light alarm module (4), a data transmission interface (5), a defect character database (6), a power module (7), a PLC (programmable logic controller) (8), a conveying unit (9), a defective gear positioning unit (10), a sorting execution unit (11), a light source irradiation module (12), a CCD (charge-coupled device) industrial camera (13) and a to-be-detected gear (14). Compared with the prior art, the gear appearance defect detection and sorting system has the advantages of simple structure, convenience in installation and debugging, high reliability, high measurement accuracy, low power consumption, easiness in popularization and promotion, convenience in maintenance, and the like.

The invention discloses an intermediate and large diameter thin-wall pipe nondestructive detection method based on a phased array ultrasonic flaw detector. The method comprises the following steps: selecting a corresponding wedge and a corresponding probe according to a specification and thickness of a to-be-detected workpiece, fixing the wedge at a front end of the probe, and enabling the probe to connect with an encoder; determining a focusing rule according to an adopted scanning type, and clearing the revolved probe parameter and focusing rule parameter; demonstrating by using simulation software in the detection equipment, adjusting the distance between the front end of the probe and a welding seam edge; enabling the selected detection acoustic beam to cover all detection regions, anddetermining a location of a reference line; measuring by using a ruler according to a set distance between the probe and the welding seam in the focusing rule, and fixing a magnetic stripe at a measurement location to connect with the encoder probe which moves along the magnetic strip edge so as to perform welding seal detection; saving detection data, analyzing and processing the detection datato obtain a detection result, and labeling a defect location and defect type of an unqualified welding seam.

The invention discloses a water heavy metal ion detection method. The method comprises: step 1, detection water extraction: taking ten cleaned and sealed test tubes to a detection water area, respectively taking water twice in a shallow layer, a middle layer and a deep layer, and then stirring the water flow to mix the water of different depths. The invention relates to the technical field of heavy metal ion detection. The invention discloses the water heavy metal ion detection method, during detection, sampling is carried out at multiple points, during sampling, water is taken from the shallow layer, the middle layer and the deep layer twice, then the water flow is agitated to mix the water at the shallow layer, the middle layer and the deep layer, then water is taken from the surface layer and the middle layer respectively for two times, water is taken at multiple points, so that the detection result is more precise, the detection error caused by the environmental factor is substantially reduced, the water sample is stored at the same temperature of the water body at the water taking position, the inaccurate detection result caused by the external temperature change is prevented,and the detection precision is increased.

The invention relates to the water treatment industry, in particular to drinking water filtration, and discloses a water purifier with a turnover cover display window device. The water purifier comprises filtering inner containers and a lower filtering inner container bin. The filtering inner containers are fixed into the lower filtering inner container bin through filtering inner container fastening devices. Water ports in the lower ends of all the filtering inner containers are connected front and back to form a filtering channel. The water purifier further comprises a turnover cover provided with the display window device, vertical lugs arranged on the lower filtering inner container bin and the turnover cover respectively, and a shaft. The shaft, the vertical lug of the lower filtering inner container bin and the vertical lug of the turnover cover form a hinge swing mechanism connected with the lower filtering inner container bin and the turnover cover in a matched mode. The display window device is either a single-display-window device arranged on one side of the turnover cover or a double-display-window device provided with a running state display window device and a detection maintenance state display window device.

The invention relates to a detecting device and a detecting method for waterproof performances of waterproof stockings thereof, solving the technical problems that equipment for quickly testing waterproof performances of the waterproof stockings does not exist, and the test process is more complex, and the like in the prior art. The detecting device for the waterproof performances of the waterproof stockings comprises a base, wherein a guide rail I and a guide rail II which are parallel to each other are fixed on a water storage tank base detachably fixed on the base; a slide block is arranged between the guide rail I and the guide rail II; a positioning slot is formed in the slide block; the water storage tank is arranged in the positioning slot; the upper part of the water storage tank is provided with an opening; a positioning plate is arranged above the base and is fixed on the base by a plurality of upright posts; a gas cylinder is fixed on the lower part of the positioning plate; a piston rod of the gas cylinder is arranged above an opening; a connecting block is fixed on the end part of the piston rod of the gas cylinder; a clamping structure capable of clamping waterproof stockings is fixed on the lower part of the connecting block; and a humidity sensor is further fixed on the lower part of the connecting block. The detecting device disclosed by the invention has the advantage of being capable of quickly testing the waterproof performances of the waterproof stockings.

The invention relates to the field of microbe experimental facilities, and in particular discloses a multi-function instrument used for the microbe acid and gas producing experiment and the sulfur-containing amino acid detection experiment. The multi-function instrument comprises a constant temperature incubator, a fermentation test tube, an acid and gas producing experiment indicating device and a sulfur-containing amino acid detection device, wherein the acid and gas producing experiment indicating device comprises a liquid storage chamber and a seal end cover, the middle part of the seal end cover sinks, the sinking part is in sealed connection with a gas collecting tube, a water injecting hole and an air hole are formed in the seal end cover, and a puncture device and a seal rubber sleeve are in sealed connection to the bottom of the liquid storage chamber; the sulfur-containing amino acid detection device comprises a detection chamber, a rubber plug is plugged to the lower opening of the detection chamber, a puncture device is inserted into the rubber plug, and a rubber seal sleeve is arranged at the lower end of the detection chamber; a filter paper strip coiled to form the barrel shape is plugged in the detection chamber. The multi-function instrument has the advantages that the size is small, the taking for use is convenient, the operation is simple, the efficiency is high, the space is saved, the experiment is simple and rapid, the result is reliable, and multiple purposes are realized.

The invention relates to a battery pack sealing detection system. The battery pack sealing detection system comprises a testing connection pipe, a liquid-storage container and a transparent tube; a compressed air inlet is arranged in the liquid-storage container; the testing connection pipe is communicated with the liquid-storage container; and the transparent tube is vertically arranged and is communicated with the liquid-storage container. Preferably, the liquid-storage container is a liquid-containing tank, the transparent tube is a glass tube, and the transparent tube is provided with a first graduation and a second graduation which are arranged at intervals from top to bottom. The battery pack sealing detection system further comprises a control valve; the control valve is mounted on the compressed air inlet; and a liquid-compensating port is further arranged on the liquid-storage container. The battery pack sealing detection system further comprises a bracket; the bracket is vertically arranged; and the transparent tube is fixedly arranged on the bracket. The battery pack sealing detection system further comprises a base, and the liquid-storage container is mounted on the base. The battery pack sealing detection system provided by the invention is unique in design and ingenious in conception, and therefore, the battery pack sealing detection system can be used for the air-tightness test with larger volume; and the detection method is simple, the detection performance is reliable and direct-viewing, and the detection equipment is low in cost, thus the battery pack sealing detection system is suitable for large-scale popularization and application.

The invention discloses a method of testing interlayer adhesion strength of a 3D-printed building structure. The method includes the following steps: 1) using 3D printing technology to print a bottom-layer test piece and a top-layer test piece in equal width, height and length to obtain a concrete member test piece; 2) maintaining and drying the concrete member test piece, fixing connectors on thetwo sides of both the bottom-layer test piece and the top-layer test piece to obtain a test sample, wherein insert slots are formed between the two connectors at the same sides of the bottom-layer test piece and the top-layer test piece; 3) respectively placing an inverted-T-shaped test piece and a T-shaped test piece on the two ends of the test sample, wherein the inverted-T-shaped test piece and the T-shaped test piece are respectively fixed on the bottom surface and an upper pressure surface of a loading device and are inserted into the insert slots; 4) at constant speed, applying a load by means of a loading device until the test sample is fractured, measuring area of an interlayer joint surface, and calculating the interlayer adhesion strength according to the value of a maximum pressure applied by the loading device. The method is convenient to carry out and has high reliability.

The invention relates to an SLS-based metal surface crack detection system, which comprises a transmitting module, a receiving module, a three-dimensional mobile platform and a control module, and ischaracterized in that a detected workpiece is placed on the three-dimensional mobile platform; the transmitting module comprises a high-frequency optical fiber pulse ultrasonic laser, a scanning galvanometer mechanism and a gathering mirror, and the high-frequency optical fiber pulse ultrasonic laser excites a beam of pulse ultrasonic laser to be reflected by the scanning galvanometer mechanism and then excited on a measured workpiece through the gathering mirror; the receiving module comprises a plurality of piezoelectric sensors, a charge amplifier and a high-speed data acquisition card; thepiezoelectric sensors are arranged around the surface of a measured workpiece; signals acquired by the piezoelectric sensors are connected with the high-speed data acquisition card through the chargeamplifier to complete real-time acquisition of the signals. Compared with the prior art, the method has the advantage that the metal surface cracks can be accurately and efficiently detected withoutdamage.

The invention discloses a sewage processing pump station automation system, mainly comprising the industrial control computer and the scene control system, in which the scene control system includes the influent control subsystem and the effluent control subsystem, and the influent and effluent control subsystems all comprising the liquid level sensor and the implementation body, and between the industrial control computer and the influent and effluent control subsystems, connecting through the scene bus, to realize the full process control automation from the sewage collection, treatment to emission; the invention uses the computer as a platform, simply, conveniently and effectively real-time monitoring the entire running process of the pump station. By the computer operation interface, the invention can intuitively process systematic detection and maintenance, and in addition, the system uses the distributed control technology which has centralized management and decentralized control, thus ensuring the system has high reliability.

The invention relates to a primer pair and a kit for detecting related gene polymorphism of adalimumab medication, and belongs to the technical field of in-vitro nucleic acid detection. The primer pair comprises amplification primers aiming at TNFrs1800629, KLRC1rs7301582, FCGR2Ars1801274, PTPRCrs10919563, HLA-Ers1264457, TRAF1rs3761847 and KLRD1rs2302489 allelic genes and GAPDH reference genes respectively. The kit comprises a primer solution containing the amplification primers. The kit provided by the invention is high in sensitivity which can reach one ten- thousandth, and the lowest detection limit is only 1-2copies, so that the kit is particularly suitable for detecting low-content mutation samples; and compared with a sequencing method, a detection result can be observed in real time, a product does not need gel electrophoresis detection, tube closing operation is completely carried out, and the risk of PCR product pollution is effectively reduced; and in addition, the kit has the advantages of being high in detection speed and suitable for high-throughput sample detection.

The invention discloses an anti-Alzheimer's disease drug screening method based on behavior and biochemical indicators and a drug screened by the method. The screening method comprises the steps that a zebra fish juvenile fish Alzheimer's disease model is built, the maximum safe concentration of a drug to be screened is determined, and experimental treatment is conducted on zebra fish juvenile fish; the method also includes screening an anti-Alzheimer's disease drug by utilizing behavioral and biochemical indexes; and judging whether the medicine has the Alzheimer's disease resistance or not. According to the anti-Alzheimer's disease drug screening method based on behavior and biochemical indicators, the anti-Alzheimer's disease drug can be systematically and completely screened, especially, new drugs with uncertain efficacy are screened; compared with the prior art, medicine soaking and testing environments are simpler and only need to be carried out in the experimental pore plate, multiple fishes can be soaked in medicine in one pore during medicine soaking, the behavior ability of 48 fishes can be tested at most at the same time during testing, the operation process is simple and easy to operate, the testing workload is greatly reduced, and testing system errors are reduced.

The invention discloses a device for measuring the contour of a mechanical part, and relates to the technical field of industrial measurement. The device comprises an object space telecentric system and an image space telecentric system; the object space telecentric system is a front fixed group, and image space telecentric system comprises a zoom group, a compensation group and a rear fixed group. The device keeps the magnification of an object image space unchanged within a unit working distance by moving the zoom group and the compensation group and simultaneously linking the two groups. The object space telecentric system can eliminate errors caused by inaccurate focusing of the object space, and the image space telecentric system can eliminate measurement errors caused by inaccurate focusing of the image space. The image space telecentric effect is combined with the irradiation of a backlight source, so that the contour images of the parts with different sizes (30-90mm) processedon line can be collected into a computer in real time through an image system and compared with a processing drawing, the detection and correction of the surface contour of the product can be visuallyand clearly completed, the processing efficiency of workers is comprehensively improved, and the measurement precision is ensured.

The invention relates to the technical field of cement building material production, in particular to a standard consistency safety monitoring system for cement building material production and a monitoring method thereof. The standard consistency safety monitoring system for cement building material production comprises a base, supporting columns, a barrel body and electric push rods, the supporting columns are fixedly arranged on the periphery of the upper surface of the base, the barrel body is fixedly installed above the supporting columns, the electric push rods are fixed to the left side and the right side of the barrel body through bolts, and a bearing plate is fixedly connected to the lower portions of the electric push rods, a connecting shell is fixedly installed at the top end of the barrel body, a motor shell is fixedly installed on the side face of the connecting shell, and a fixing frame is fixedly arranged at the top end of the connecting shell. Compared with the prior art, the standard consistency safety monitoring system for cement building material production and the monitoring method of the standard consistency safety monitoring system have the beneficial effects that: improvement is carried out on the basis of the prior art, the cement consistency can be visually displayed, so that adaptive adjustment is carried out, and the inner wall of the device can be cleaned while discharging is carried out.

The invention discloses a rudder system segmented positioning precision control method based on a three-point circle center method, and the method specifically comprises the following steps: installing a rudder hole cross target on an upper rudder hole of a rudder system segment, and installing three reflector plates at the edge of a lower rudder hole; establishing a three-dimensional coordinate system; hoisting and fixing the rudder system section by section on a shipway; when the rudder system subsection is welded and fixed with a slipway, adopting a total station to respectively measure thetarget center three-dimensional coordinates of the rudder hole cross target and the three-dimensional coordinates of the three reflecting sheets at the edge of the lower rudder hole, and correcting the positioning deviation of the rudder system subsection according to the measurement result. According to the method, the deviation direction and trend of the segmented rudder holes of the rudder system can be quickly judged, the segmented field positioning precision of the rudder system is improved, and the workload of subsequent correction and the like caused by precision deviation is reduced.

An ultrasonic effect evaluation component disclosed by the invention is used to evaluate the ultrasonic effect of ultrasonic cleaning equipment. The ultrasonic effect evaluation component at least comprises support frames on which a film layer is arranged. The ultrasonic cleaning equipment exerts an ultrasonic effect on the film layer. An ultrasonic effect evaluation method disclosed by the invention is completed by using the ultrasonic effect evaluation component, and comprises the following steps: putting the ultrasonic effect evaluation component in the ultrasonic cleaning equipment for ultrasonic treatment; checking the surface of the film layer; and judging the ultrasonic effect of the ultrasonic cleaning equipment according to the condition of the surface of the film layer. The ultrasonic effect evaluation component of the invention has the advantages of simple manufacture and low input cost of consumables. The ultrasonic effect evaluation method is simple to operate and easy toimplement, and ordinary operators can quickly grasp the method only through simple training. The detection effect is intuitive. The cleaning ability of ultrasonic cleaning equipment from different manufacturers can be qualitatively judged, the ultrasonic effect of silicon wafer ultrasonic cleaning equipment can be reflected, and the silicon wafer cleaning ability of ultrasonic cleaning equipment can be judged.

The invention provides an electricity consumption information acquisition device data transmission performance analysis system. The system comprises a concentrator local monitoring unit, an intelligent ammeter local monitoring unit, a sequential management unit, a protocol analysis unit, a data storage unit, a flow management unit, a result determination unit, an input and output unit and CPU; and the protocol analysis unit, the data storage unit, the flow management unit, the result determination unit and the input and output unit are in bidirectional connection with the CPU respectively, and the CPU is in unidirectional connection with the sequential management unit. The working effect of a local communication module is evaluated through monitoring of the working state of the local communication channel of an electricity consumption information device, monitoring of the communication state among the electricity consumption information device, an intelligent ammeter and its local communication module, and acquisition, statistics and analysis of local communication stream in order to assess the transmission performance of data communication among composition parts of the system.