56results about How to "Meet the requirements of detection accuracy" patented technology

The invention discloses a method for generating an object detection model, and the method comprises the steps: obtaining a training image containing annotation data, and enabling the annotation data to be the position and category of a target object in the training image; inputting the training image into a pre-trained object detection model for processing, the object detection model comprising afeature extraction module, a fusion module and a prediction module which are mutually coupled, the feature extraction module being suitable for performing convolution processing on the training imageto generate at least one initial feature map; the fusion module is suitable for performing up-sampling processing on the initial feature map to obtain a feature map after feature fusion; the prediction module is suitable for predicting the category and the position of the target object from the feature map; and on the basis of the annotation data and the predicted object category and position, training a pre-trained object detection model to obtain a trained object detection model as a generated object detection model.

The invention discloses a calibrating device of an automobile pedal force and travel detector in the field of automobile industry, and aims to solve the problem that the automobile pedal force and travel detector cannot be calibrated. A system comprises a pedestal (1), a stayguy sensor (2), a supporting platform (3), a fixed sleeve (4), a force sensor (5), a guide post (7), a sliding sleeve (8) and a lead screw (9). The calibrating system can calibrate numerical values of pedal force and pedal travel of an automobile measured by the automobile pedal force and travel detector.

The invention discloses a method for detecting defects inside glass. The method comprises the following steps: in a dark environment, irradiating the side surface of glass to be detected by using a linearly-structured light source, wherein the defects inside the glass such as impurities and cracks can scatter a part of light, shooting from the front surface of the glass to be detected by using a high-resolution CCD (charge coupled device) camera, recording a series of images with defect information, moving the glass to a next position, shooting again, and finally obtaining defect images of all irradiated positions of the side surface of the glass to be detected. The visual field of the high-resolution CCD camera is limited, so that firstly, images in a certain layer are two-dimensionally stitched to obtain the defect images of the layer, secondly, two-dimensional coordinates and the layer number of the defects are recorded, and finally, the defect images of all layers are three-dimensionally reconstructed to obtain three-dimensional images of the defects inside the whole glass. The detection method is simple and high in detection accuracy, can accurately detect positions of the defects inside the glass such as the impurities and the cracks.

The invention provides a method and device for detecting an initial position angle of an electro-excitation synchronous machine rotor, belonging to a control method and device of a motor. A three-phase power supply in the device is connected with an electro-excitation synchronous machine by a three-phase voltage source inverter; a voltage transducer is connected with a power line between the three-phase voltage source inverter and the electro-excitation synchronous machine; the voltage transducer is connected with an input end of a DSP (digital signal processor) control system; an output end of the DSP control system is connected with a PC (personal computer); a DC (direct current) power supply is connected with a rotor exciting winding of the electro-excitation synchronous machine by an H-bridge inverter; a current transducer is connected with a power line between the H-bridge inverter and the rotor exciting winding of the electro-excitation synchronous machine; and IGBT (insulated gate bipolar translator) drive signals are connected with the H-bridge inverter. According to the invention, the structure is simple and reliable, the realization is easy, the anti-interference performance is strong, the detection accuracy is high, the additional hardware overhead is not required, and the detection result of the initial position angle of the rotor can be acquired.

The invention relates to a device for rapidly and nondestructively detecting the component content of yellow rice wine. The existing detection method has the disadvantages of large time consumption, complication in operation and damage to a sample. In the device provided by the invention, after the light emitted by a light source is collimated through a lens, a modulating disk is aligned to the collimated parallel light, thereby carrying out the light intensity modulation; the collimated parallel light is split by a spectrometer which comprises an interference filter, a filter wheel and a stepper motor; the monochromatic light with the bandwidth of 10-20nm is emitted into an immersion optical fiber probe and then emitted to a detector; after the weak photoelectric signals output by the detector are amplified by an instrument amplifier and processed through a low pass filter, and the weak photoelectric signals are converted into digital signals by a converter; and the digital signals are transmitted to a digital signal processor. The device provided by the invention can be used for carrying out the nondestructive detection on conventional detection items such as the alcohol, sugar and acidity and the like in the yellow rice wine, is rapider and more friendly-environment than the conventional yellow rice wine component physicochemical check, does not need to preprocess the sample and has the advantages of good detection result repeatability and low detection cost.

The invention provides an SFF-8485 agreement fault-tolerant analyzing method based on sequence flow detecting. The method comprises the following steps of: 1) redefining the starting sign of agreement analysis, namely continuously generating the low level of four clock periods on an SLOAD signal line, in the next adjacent clock period, and the level of the SLOAD signal line being changed to high level, and namely the SLOAD having rising edge step change; on the SLOAD signal line, under the match of a clock signal, detecting the set sequence flow '00001' of the starting sign of agreement analysis, namely continuous four low levels and one high level; 2) when no sequence flow of the starting sign of agreement analysis is detected, not responding to any change of an SDATA signal line; and when the set sequence flow '00001' of the starting sign of agreement analysis is detected, starting the analysis for the state data of a hard disk, temporarily storing the analyzed state data of the hard disk, and meanwhile continuously detecting the sequence flow '00001' of the starting sign of agreement analysis.

A rail detection trolley comprises an underframe, wheels, measurement devices, lifting devices, locking devices and traction devices, wherein the two wheels are mounted on the left side and the right side of the underframe respectively, connected with the underframe and used for supporting the trolley on steel rails when the rail detection trolley is put down, so that the rail detection trolley can perform moving operation on the steel rails; the two measurement devices are mounted right above a left steel rail and a right steel rail respectively, fixed on the underframe and used for detecting the rail profiles and corrugations of the steel rails on line in a non-contact detection manner; the lifting devices are used for lifting the underframe to a preset height above the rails or putting the underframe on the steel rails; the locking devices are used for locking the underframe when the underframe is lifted to the preset height above the rails; the traction devices are mounted on the front side of the underframe, fixedly connected with the underframe and used for pulling the rail detection trolley put on the steel rails to move with a steel rail repairing vehicle.

The invention discloses an optical detection system, a biochemical analyzer, a light beam orienting component and a light beam adjusting method of the optical detection system and the biochemical analyzer. The optical detection system comprises a light source, a light beam collecting component, a detected sample placing position and the light beam orienting component, wherein the light beam orienting component comprises a support and a light beam adjusting part, the light beam orienting component is provided with an incident surface and a light emitting surface which are respectively opposite to the light source and the light beam collecting component, the light beam adjusting part is fixed on the support, and an adjustable clearance and/or adjustable angle is formed between the light beam adjusting part and the support; and the detected sample placing position is located between the light beam orienting component and the light beam collecting component or located at one sides of the light beam orienting component and the light beam collecting component. In the invention, the optical axis of the light beam adjusting part can generate parallel excursion for a certain distance or deflection for a certain angle relative to the principal optical axis of an optical system, so that a light beam emitted by the light beam adjusting part is propagated along a reasonable direction to meet the working requirement of the optical system.

The invention discloses a six-post type three-dimensional visual detection system for automobile wheel alignment parameters, which aims to overcome the problem that the existing detection system adopts a high precision straight-line guide rail, is complex in structure, high in manufacturing cost and not suitable for wide range popularization, and cannot be adjusted to an asymmetric measurement system. The system comprises a front right plane mirror rapid clamping locating device (A), a front left plane mirror rapid clamping locating device (B), a rear right plane mirror rapid clamping locating device (C), a rear left plane mirror rapid clamping locating device (D), a left position adjustable camera mounting system (F) and a right position adjustable camera mounting system (E). The detection system disclosed by the invention can complete accurate measurement of the wheel alignment parameters during the detection process.

The invention discloses a method for detecting the chamfer depth and angle of a valve seat hole. The method comprises the following steps: firstly, setting a standard cone which can be adapted to thechamfer of the standard valve seat hole, and forming an upper limit detection plane and a lower limit detection plane at the top end of the standard cone; secondly, coating the cone surface of the standard cone with a layer of dye; thirdly, inserting the standard cone into the valve seat hole to detect whether the vertex of the chamfer of the valve seat hole is between the upper limit detection plane and the lower limit detection plane or not; and finally, rotating the standard cone to detect whether the dye area of a chamfer cone on the standard cone meets the requirements or not. The invention also provides a test tool for detecting the chamfer depth and angle of the valve seat hole. The detection method and test tool for detecting the chamfer depth and angle of the valve seat hole havethe advantages of rapid detection of depths and angles, integral detection of depths and angles, high specificity, convenience in operation, accurate and clear detection results and high detection accuracy.

The invention discloses a three-freedom degree wheel positioning instrument target in the field of car industries, which aims to solve the problem that the traditional target can not carry out position adjustment and has lower precision. The device comprises a target plate (1), target plate support angle iron (2), a target shaft connecting frame (3), a fan-shaped frame (4), a connecting fork (5), a connecting pipe (6), a connecting shaft (7) and a rotating shaft (8), wherein one end of the connecting shaft (7) is rotatably matched and connected with an inner hole of the connecting pipe (6); the connecting pipe (6) is welded with the bottom of the connecting fork (5); the rotating shaft (8) penetrates through the connecting fork (5) and a through hole at the circle center position of a cambered groove of the fan-shaped frame (4) and extends out of the end part of the through hole and is threaded by a butterfly nut; the top surface of the target shaft connecting frame (3) is fixedly connected with a bottom bolt of the fan-shaped frame (4); two target plate support angle irons (2) are welded in the target plate (1), and the target shaft connecting frame (3) is fixedly connected with bolts of the target plate support angle iron (2).

The invention relates to the technical field of bogie pipeline installation and specifically relates to a bogie pipeline positioning detection device and positioning and detection methods. The device comprises a base. Scales are formed in the length direction from one end to the other end of the upper surface of the base. The base is provided with a positioning mechanism, a measuring mechanism and an assembling mechanism. The assembling mechanism is fixedly connected with the base. The assembling mechanism connects the base with a bogie. The positioning mechanism and the base are movably connected. The positioning mechanism is capable of moving in the length direction of the base and is fixed on a position needing positioning. The measuring mechanism and the base are movably connected. The measuring mechanism is capable of moving in the length direction of the base. The positioning and detection methods are respectively carried out by the bogie pipeline positioning detection device. The bogie pipeline positioning detection device and the positioning and detection methods provided by the invention have the advantages that the structure of the device is simple, the operation method is convenient, and detection and positioning functions are simultaneously realized.

The invention discloses a credit fraud detection method and system, and relates to the field of credit. The method comprises the steps of obtaining credit sample data, dividing the credit sample datainto a training set and a test set, training a feature data window and a logistic regression model by using the training set to obtain a credit fraud detection initial model, debugging the credit fraud detection initial model by using the test set to obtain a credit fraud detection model, obtaining credit data to be tested, inputting the credit data to be detected into the credit fraud detection model to obtain a logistic regression classification result, and performing decision fusion on the logistic regression classification result to obtain a credit fraud detection result. According to thecredit fraud detection method and system, feature scanning and logistic regression are combined, feature scanning and logistic regression are performed on the to-be-detected credit data, and finally decision fusion is performed, so that the accuracy of credit fraud detection is improved, the credit fraud detection model is simple in structure, and the training speed and the classification speed are improved.

The invention provides bored pile bore hole inspection equipment. The bored pile bore hole inspection equipment comprises an equipment body (1), multiple distance sensors (2), a direction detection device (3) and a data processing module (4), wherein the distance sensors are equidistantly arranged on the outer side wall of the equipment body (1), and are used for detecting multiple distances between the outer side wall of the bore hole inspection equipment and the inner side wall of a drilling duct in real time in the process of putting the bore hole inspection equipment into the drilling ductto obtain multiple pieces of distance information, the direction detection device (3) is arranged at the equipment body (1) and is used for obtaining direction information of the bore hole inspectionequipment in real time in the process of putting the bore hole inspection equipment into the drilling duct, and the data processing module (4) is arranged at the equipment body (1) and is electrically connected with the distance sensors (2) and the direction detection device (3), and is used for obtaining the direction information and the distance information, correcting the distance informationbased on the direction information to generate multiple pieces of corrected distance information, and generating duct three-dimension information based on the direction information and the corrected distance information.

The invention discloses a straightness and twist angle detection method for a turnout of a high-speed railway and a detection device thereof. The detection method comprises the following steps: first,emitting line structured light covering detection parts to a rail top and a rail waist of the high-speed railway, separately, and scanning the contours of the rail top and the rail waist of the turnout of the high-speed railway; generating planar contour data of the turnout of the high-speed railway; defining a detection coordinate system of the rail top and the rail waist of the turnout of the high-speed railway, and recording coordinates of the scanned contour points in real time in the detection coordinate system; calculating the planar jump values of the rail top coordinates and the railwaist coordinates of the scanned contour points in real time to acquire the straightness and the twist angle of the turnout of the high-speed railway; judging whether the planar jump values exceed a preset precision or not; and conveying the turnout of the high-speed railway to a to-be-processed area to be repaired when the planar jump values exceed the preset precision. The detection device disclosed by the invention is high in adaptability and efficiency. The detection device is not manually operated once being mounted, so that the workload of a worker can be reduced, and meanwhile, the detection device can detect automatically, is high in detection speed and high in measuring precision.

The invention provides an immune quantitative detection device for a marker to be detected, which is characterized by comprising a mobile phase containing device (2), a filter (1), a detection phase containing device (3) and a detector (4), wherein the mobile phase containing device (2) is connected with the filter (1) through a pipeline (8); the filter (1) comprises an inlet (5), a filter element(6) and an outlet (7); the detection phase containing device (3) is connected with the detector (4) through a pipeline (9); and the filter element (6) is made of a substance which can be coupled by using a specific conjugate of a marker to be detected. The invention further provides an immune quantitative detection method and an immune quantitative detection amplification method of the marker tobe detected and related application. According to the invention, the individual controllable degree of immune quantitative detection is improved, and the detection efficiency is improved.

The invention discloses a biosensor. The biosensor includes a sensor body, wherein the sensor body includes a plurality of physical surfaces, each physical surface is provided with at least one functional electrode, and the physical surface further includes a non-sensing area; and the non-sensing area of at least one of the physical surface is further provided with the other functional electrode,each of the functional electrodes is provided with a corresponding signal conducting area, and each of the functional electrodes is connected with the corresponding signal conducting area. According to the biosensor, since the multiple functional electrodes are distributed on the multiple physical surfaces of the sensor, the length of the sensor can be shortened effectively through the design on the premise of the same sensing area of the sensor; and when the biosensor is compared with a sensor with electrodes which are arranged on one side of the sensor, the length can be shortened by 50% through the design under ideal conditions, and meanwhile the test precision of the sensor can be improved further, so that the problem of contradiction between the test precision and wearing experience of an existing sensor is solved.