4087results about How to "Reliable test results" patented technology

The invention relates to a mobile phone casing defect detecting method based on depth learning. The method comprises the steps that (1) the image of a mobile phone casing to be detected is acquired and pre-processed; and (2) the pre-processed image is input into a pre-trained defect detection model for defect detecting to acquire the position of a defect on the mobile phone casing, and the confidence of the position as the defect is provided. The defect detection model is a depth network based on depth learning, and comprises a feature extraction network and a classifier and regression device network, wherein the feature extraction network and the classifier and regression device network are in successive cascade. The feature extraction network carries out feature extraction on the pre-processed image to acquire a feature image. The classifier and regression device network classifies and regresses the feature image to acquire the defect position and the confidence of the mobile phone casing. Compared with the prior art, the method provided by the invention has the advantages of high detection precision and accurate and reliable detection result.

The invention provides a test system and test method of a radio frequency identification index. The test system comprises a shielding box used for placing equipment to be tested, a test antenna is arranged in the shielding box, the test antenna is connected with a radio frequency parameter tester, the radio frequency parameter tester is connected with a computer, and the computer is further connected with the equipment to be tested. Test signals of the test method are sent through the equipment to be tested, the radio frequency parameter tester receives the test signals through the test antenna, the test signals are coupled with the test antenna through the antenna of the equipment to be tested to be transmitted to the radio frequency parameter tester to complete test analysis. According to the test system and test method, a test process and the test method are simplified, production cost of a test fixture is eliminated, test cost is saved, test operation is easy to achieve, and a test controller can be familiar with the test process conveniently; the test speed is high, test efficiency is improved, and a test result is stable and reliable.

The invention discloses a full automatic biochip detection system belonging to the clinical detection field of multi-marker biochips. The system adopts modular structure and comprises an automatic sample processing module, a reaction washing module, a detection module, a Tip head storage module, a reagent storage module, a biochip storage module, a sample storage module, a system base, an electric control box and a computer, the electric control box and all the modules are operated under the control of software, so as to realize the automatic sampling, the sample adding, the reaction, the washing, the detection and other processes. All the modules can work independently and can also be combined together and matched for work. The full automatic biochip detection system can overcome the shortcomings of the existing biochip detector and reduce the errors caused by human operation, and has stable and reliable detection result and good flexibility, so that the full automatic biochip detection system can not only greatly improve the detection efficiency, but also can be conductive to the accuracy of the detection result; the system has simple operation, therefore, the system is not only applicable to the scientific research and the applications of laboratories and hospitals, but also can be used for large-scale sample screening of large-scale hospitals and blood stations.

The invention relates to a tunnel lining disease detection device based on an infrared temperature field and a gray level image. The tunnel lining disease detection device comprises a vehicle-mounted mobile platform, illumination equipment, a photoelectric encoder, a GPS (Global Position System) receiver, an inertia unit, a synchronous controller, an area-array camera, an infrared thermal imager, an acquisition server, a display control device and a power supply system; tunnel lining two-dimensional image data, infrared temperature field data and fracture surface deformation data are combined with positioning data of the GPS, the inertia unit and the photoelectric encoder to establish a tunnel model with gray level information, temperature information and fracture surface deformation; and tunnel lining cracks are analyzed, and the length, width and lining leakage water information of the cracks are automatically detected. For the tunnel lining disease detection device, the advantages of infrared temperature field detection and two-dimensional gray level image crack detection are combined so that the detection result is relatively reliable, the speed is rapid and the working efficiency is greatly improved.

The invention discloses an indoor fire detection method based on a video monitoring platform. The indoor fire detection method includes the steps: converting formats of inputted video code stream; preprocessing the video stream; detecting movement of the video stream to obtain movement pixels; extracting connected domains of the movement pixels meeting conditions; detecting multilayer colors of the connected domains and reserving the connected domains with flame and smoke characteristic colors; calculating the corresponding area variation and the central movement speed of the connected domains conforming to flame color characteristics to analyze dynamic variation; performing wavelet transformation for the connected domains conforming to smoke color characteristics, extracting high-frequency components and calculating the decay degree of the high-frequency components; calculating the perimeter and the area of the connected domains meeting the conditions and analyzing static shapes; andanalyzing by considering all the conditions and finally judging whether fire occurs or not. By the aid of the method, flame and indoor flicker lamps can be effectively and rapidly distinguished, and false alarm rate is greatly reduced.

The invention discloses a device and a method for testing the precision retaining ability of a ball screw assembly. A head frame of the device is fixedly arranged at one end of a bed body; an output shaft of an alternating-current motor is connected with an output shaft of a speed reducer through a synchronous belt transmission mechanism; the other end of a tested ball screw is arranged in a mounting hole in a tail frame and can rotate; a fixing plate is fixedly connected with a second group of slide blocks; the second group of slide blocks has two slide blocks; the two slide blocks are respectively locked on two guide rails; the two guide rails are fixedly arranged on the bed body and are parallel to the axis of the tested ball screw; a nut penetrates through the tested ball screw and is fixedly connected with a nut base; the nut base is fixedly arranged on a slide plate; the slide plate is fixedly connected with a first group of slide blocks; and the nut and the slide plate drive the first group of slide blocks to move on the guide rails under the driving of the rotation of the tested ball screw. The device can test and detect the precision retaining ability of the ball screw assembly, is convenient to operate and is reliable in a detection result.

The invention discloses a method and a device for testing the overall performance of an intelligent transformer substation. The method comprises the following steps of: by taking a secondary system of the intelligent transformer substation as a check object, checking a combination unit and a network switch of the intelligent transformer substation; by taking a primary main connecting wire of the intelligent transformer substation, and a line and a power supply which are linearly connected with the primary main connecting wire as objects, establishing a transformer substation simulation model; according to configuration and test requirements of an electronic transformer and switching equipment of the intelligent transformer substation, arranging an acquirer simulator and a switch simulator; by using a numerical value simulation method, acquiring a time domain simulation result of an object system; and under the control of a test control system, synchronously inputting test signals of the acquirer simulator into the combination unit, and uploading an intelligent operation box command which is received by the switch simulator to the test control system, so that checking of the functional accuracy of the secondary system of the intelligent transformer substation is finished. Based on a numerical value simulation technology, a wireless transmission technology and a network exchange technology, the invention has a true and reliable test result by validation.

The invention discloses a device for testing the performance of an automotive steering system, comprising a steering simulating system, an axial loading system, a suspension fork simulating system and an automotive steering system, wherein the steering simulating system is used for simulating the rotation of a steering wheel in an automatic and manual mode; the axial loading system is used for simulating a steering load and loading the steering load to the automotive steering system (comprising a steering column, a steering gear, a tie rod and a simulation steering knuckle) through a Bell mechanism; the suspension fork simulating system is used for simulating wheel jumpiness during driving. The device for testing the performance of the automotive steering system is used for experimenting and testing the steering performance of an automotive steering in various driving conditions, such as experiments and tests of kinematic and mechanic parameters of full angle, transmission ratio characteristic, transmission clearance characteristic, transmission efficiency characteristic, driving moment, rigidity, relationship between steering performance and suspension fork jumpiness and the like. The device directly simulates the steering wheel to load the automotive steering through the Bell mechanism, so that the testing result is closer to a real working condition.

The invention discloses an automatic extractor hood speed regulating control method based on image analysis and an automatic extractor hood speed regulating control system based on mage analysis. The control method specifically comprises the following steps: (1), by virtue of an image acquisition unit, collecting an oil fume image of the upper part of a gas stove at a fixed frequency f; (2), by virtue of an image processing unit, extracting edge information by taking frame difference image of the collected oil fume image and an oil fume-free background image as a signal source; (3), by virtue of a main controller, performing quantitative analysis by taking the edge information transmitted by the image processing unit as an image feature value, thereby obtaining a frequency signal required by a frequency conversion fan; and (4), by virtue of the frequency conversion fan, regulating the rotation speed according to the received frequency signal sent by the main controller. By virtue of an image analysis means, the concentration of oil fume generated by the gas stove is detected in real time, the rotation speed of the fan is regulated and closed-loop automatic control is realized.

The invention discloses a thrombus elasticity testing device. The thrombus elasticity testing device comprises a supporting plate, a measuring unit, a driving unit and a cup holding unit, wherein the measuring unit and the driving unit are arranged on the supporting plate, and the cup holding unit is connected with the driving unit; the measuring unit comprises a base, a rotating part, a rotating shaft and a balance spring. According to the thrombus elasticity testing device, the driving unit is combined with the cup holding unit to carry out regular vibration on a blood sample in a measuring cup to simulate a physiological thrombus formation environment in vivo, thereby guaranteeing an accurate and reliable test result; by virtue of a structure consisting of the conical tip-shaped rotating shaft and the balance spring in the measuring unit, friction generated during vibration of the measuring unit is decreased sharply, and the shock resistance of the complete device is greatly improved on the premise of guaranteeing restoring force, so that the measurement reliability is high; by virtue of an optical lever measuring mechanism, the resolving ability and sensitivity of thrombus elasticity measurement are effectively increased, so that the measuring accuracy is remarkably improved; by virtue of a measuring cup loading-unloading mechanism, the operation is convenient and reliable.

The invention discloses a measuring device and a method for liquid permeability of a compressed rock in reservoir conditions, wherein the device comprises a thermostat; a first piston container and a second piston container which are arranged in the thermostat and used for containing test fluid; a core holder which is arranged in the thermostat, wherein the interior thereof is used for clamping a core sample, the two ends of the core holder is respectively connected to the outlet ends of the first piston container and the second piston container; a confining pressure pump used for adding confining pressure to the core sample in the core holder; a vacuum pump used for drawing a vacuum on the two sides of the core sample in the core holder; an injection pump which can inject the test fluid in the first piston container into one side of the core sample in the core holder; and a backpressure pump which can inject the test fluid in the second piston container into the other side of the core sample in the core holder. The test results of the device are more reliable.

The invention discloses a valve stroke testing system which is characterized in that the system comprises a tested valve, a valve rod stroke control mechanism, an air intake and exhaust control device and a detecting unit; the tested valve comprises a pneumatic actuating mechanism and a sensor unit, wherein the pneumatic actuating mechanism controls the air intake or air exhaust through a two-position three-way electromagnetic valve; the sensor unit is used for obtaining the related information of a valve rod; the valve rod stroke control mechanism is provided with a limit sleeve; the valve rod is provided with a limit stop which is used for limiting a part of stroke of the valve rod; the air intake and exhaust control device is communicated with a circumscribed instrument air tank through an air intake electromagnetic valve according to one way of a buffer tank; the other way of the air intake electromagnetic valve is communicated with an air exhaust electromagnetic valve; one way of the air intake electromagnetic valve is communicated with the two-position three-way electromagnetic valve through a manual valve; and the detecting unit is used for collecting detecting signals and providing control signals of the two-position three-way electromagnetic valve, the air exhaust electromagnetic valve and the air intake electromagnetic valve. the valve stroke testing system provided by the invention can be used for online or off-line test of the valve stroke, can be used for full stroke or partial stroke test for the valve, and can be applied to pneumatic-type interlocked valves without mounting intelligent positioning devices in all industries.

This invention relates to the field of object volume survey, which discloses a method based on the image volume metering and the measuring technique. This metering equipment comprises the image gathering installment and the computer. The image collecting installment comprises objective table, as well as three cameras established symmetrically on objective table; Take the above metering equipment as the foundation, this measuring technique including the camera demarcation, image gathering, the image pretreatment, the picture edge extraction, the coordinate transformation, the three dimensional restructuring step, finally counts all three dimensional spots on the measured object, then obtain the actual volume of objects. This invention may be widely applied in areas such as medicine, chemical industry, food, environmental protection, water treatment, building materials, grain micro powdery, the granulated material continual quota throws in Canadian, ingredient craft domains dried noodles batch feeding and so on.

The invention discloses a multifunctional unsaturated soil permeameter and a testing method thereof. The permeameter comprises a first bracket, a second bracket, a water supplementing device which is fixed on the first bracket and can perform up-and-down adjustment, and a soil sample permeation device which is fixed on the second bracket and can perform up-and-down adjustment, wherein the water supplementing device and the soil sample permeation device can be combined to form an underground water level rise simulation device, a flooding simulation device or a rainfall simulation device. The testing method comprises the following steps of: 1, performing underground water level rise, flooding and rainfall simulation tests, namely respectively performing the underground water level rise, flooding and rainfall simulation tests on the same tested soil sample by employing the underground water level rise simulation device, the flooding simulation device and the rainfall simulation device; 2, performing test data arrangement, and acquiring a permeation characteristic testing result of the tested soil sample. The multifunctional unsaturated soil permeameter is reasonable in design, low in investment cost, simple in operation, convenient in realization and good in using effect and can simply and rapidly finish the permeation characteristic testing process of unsaturated soil.

This invention discloses a laser speckle tyre lossless detector. The detector is located in the test room of the vacuum device and is connected with a vertical and level and rotation laser speckle probes through test moving structure. Under the test prove there is tyre automatic position device to supporting and positioning and there is door in the sidewall of the test room. This invention also provides a method for lossless test and the laser speckle tyre loss detector can test the inner defection of the products and can be used in quality test of space flight field.

The invention discloses a liquid phase chip for CYP19A1 gene SNP (Single Nucleotide Polymorphism) detection, which comprises wild type and mutant type specific ASPE primers designed targeting CYP19A1 gene SNPs of rs4646, rs10046C>T, rs700519C>T, rs1870050C>A, hCV1664178A>C, rs12900137G>C, rs730154G>A, rs936306T>C and rs1902586A>G, microballoon spheres respectively coated with specific anti-tag sequences and primers used for amplifying CYP19A1 gene SNPs with target sequences to be detected. Each ASPE primer comprises a tag sequence at 5' end and a specific primer sequence at 3' end, wherein the specific primers are selected from SEQ ID NO. 19-36 and the tag sequences are selected from SEQ ID NO.1-18; and the anti-tag sequences can be correspondingly in complementary pairing with the tag sequences. The invention also discloses a CYP19A1 gene SNP detection method. The coincidence rate of the detection method provided by the invention and a sequencing method is as high as 100%; and the prepared liquid phase chip for CYP19A1 gene SNP (Single Nucleotide Polymorphism) detection has excellent signal-to-noise rate, and basically no cross reaction exists between a design probe and the anti-tag sequences.

In a concrete multi-factor durability experimental device under the action of the bend-pulling stress and the environment coupling, lower part of the pulling rod (6) is connected to a lower pressing board (9); the upper part of the pulling rod (6) presses a stress sensor (1) on the pulling board (2) via the screw cap (3) traversing the upper pressing board (5) and pulling board (2); a spring (4) is arranged between the pulling board (2) and the upper pressing board (5); concrete test pieces (8) are arranged between the upper pressing board (5) and the lower pressing board (9); a mat stick (7) is arranged between the concrete test pieces and between the concrete test piece (8) and the upper pressing board (5) or the lower pressing board (9); two sides of the concrete test piece (8) are arranged with a constant force holding meter (10); the constant force holding meter (10) is connected to the non-metal supersonic testing meter (11). The device is suitable for the big size concrete test piece, retaining the no stress loosing state in the process of loading in a long term.

The invention relates to a passenger car safety pre-warning system based on visual perception and car networking. The passenger car safety pre-warning system based on the visual perception and car networking comprises a vehicle-mounted system (101), monitoring center software (102), a radio frequency identification (RFID) communication module (103), checkpoint software (104) and a driver RFID card (105). The vehicle-mounted system is responsible for acquiring and storing interior and exterior video images, and performing works of vehicle passenger capacity statistics, driver fatigue state detection, interior abnormal condition detection, manual alarm information detection, vehicle running information acquisition and the like. According to the passenger car safety pre-warning system provided by the invention, by acquiring a video image at the position of a car door and adopting a regional movement vector clustering-based passenger capacity detection method, accurate statistics of the number of people getting on or off a car is realized. By acquiring a face video image of a driver and adopting a fatigue detection method of self-template matching, the accurate detection of fatigue driving is realized, and therefore, the goal that the passenger car runs safety is achieved. By using the intelligent video analysis-based overload detection technology, the passenger car safety pre-warning system is high in detection precision. A detection result can be transmitted to a monitoring center by 3rd generation (3G) communication, and is transmitted to a checkpoint by RFID, and thus, the passenger car safety pre-warning system automatically gives an alarm after discovering overload and is convenient to supervision.

The invention relates to an online detection and control method of the periphery of a filtering rod and a device. The device is characterized by mainly comprising a parallel light source (1), a linear array CCD (Charge Coupled Device) detector (2), a scanning motor (3), a signal processing module (4) and an executing mechanism (6), wherein the parallel light source (1) and the linear array CCD detector (2) are respectively positioned at the two opposite sides of the filtering rod; the scanning motor (3) drives the parallel light sources (1) and the linear array CCD detector (2) to rotate around the filtering rod; the signal input end of the signal processing module (4) is connected with the signal output end of the linear array CCD detector (2); and the signal output end of the signal processing module (4) is connected with the control end of the parallel light source (1), the control signal input end of a motor driver of the scanning motor and the signal input end of the executing mechanism (6) simultaneously. The invention has the advantages that the accuracy is high (the size of the received image element is 10mum), no influence is caused by various interference factors such asvibration, noise, temperature, dust and barometric fluctuation and the like on a site, and the detection result is accurate, stable and reliable.

The invention discloses a method for detecting and switching a failure scene based on mobile terminal information, which mainly solves the problems of the inaccuracy and the incompleteness of the detection for switching the failure scene in the mobile robustness optimization in the conventional SON. The method mainly comprises the following contents: 1, modifying reestablishment connection request information, adding a former cell field, and adding options of coverage hole and other RLF to a request connection reason field; and 2, receiving the reestablishment connection request information by using a target base station; reading a value of the request connection reason field, and if the value is the other RLF, determining that the link failure is resulted from irrationality switching of the parameter; reading the former cell field, and if the value is 0, switching the failure scene in a mode that the switching is triggered too late; if the value is the same as a local cell ID, switching the failure scene in the mode that the switching is triggered to early; and if the value is different from the local cell ID, then switching the failure scene in the mode that the failure scene isswitched to an error cell. The method is applied to parameter optimization of a cellular network for improving network performance.

The invention discloses a testing device for observing shear deformation failure characteristics between a tubular pile and a grouting soil body. The testing device comprises a fixing platform, a tubular pile model testing box, a loading mechanism and a monitoring system, wherein the fixing platform comprises a base plate, a top plate and a plurality of connecting screw rods; the tubular pile model testing box comprises a bottom wall, two side walls, a rear wall and a front wall, wherein the front wall is movably arranged between the side walls, and is made of colorless transparent organic glass; the monitoring system comprises a displacement sensor, a pressure sensor and a strain rosette group arranged on the outer surface of the tubular pile; the strain rosette group comprises a plurality of strain rosettes which are uniformly distributed along the central axis direction of the tubular pile, and are connected with an automatic recorder. According to the invention, a semi-circular pipe pile is adopted, so that the shear deformation failure characteristics between the tubular pile and the grouting soil body can be observed conveniently, and the shear resistant intensity between the tubular pile and the grouting soil body can be observed; a camera device is adopted for recording the video of the testing process; the visual testing enables the analysis to be relatively intuitive.

The invention discloses a fast load testing device and method for a chloride ion migration coefficient of concrete. An elastic connecting piece in a state of compression is adopted for exerting a sustained load on a concrete sample and the concrete sample loaded with sustained stress is subjected to an electric accelerating chloride ion migration test to calculate the chloride ion migration coefficient of the concrete sample in the state. According to the invention, the fast load testing device and method for the chloride ion migration coefficient of the concrete aim at the problems that the conventional testing device for the chloride ion migration of the concrete can not exert a load on a tested sample and consequently can neither imitate the actual loaded state of in-service concrete nor determine the chloride ion migration coefficient of the concrete under sustained load; sustained and stable pressure is exerted on the concrete sample in longitudinal direction by the resilience of the elastic connecting piece; and the reduction of pressure stress caused by the creep of the concrete sample when a tensioning screw is used for exerting load can be avoided, so that the influence of the sustained load on the permeability of the chloride ions of the concrete can be researched.