39results about How to "High-precision detection" patented technology

The invention belongs to the technical field of computer vision, and particularly discloses a monocular 3D object detection method for realizing depth enhancement based on a visual basic model, electronic equipment and a readable storage medium, and the method comprises the steps: S1, building a data set: employing a monocular camera to collect a pavement scene, and obtaining an RGB image in the pavement scene; s2, image preprocessing: preprocessing the RGB image for subsequent feature extraction and depth estimation; s3, performing feature extraction by adopting a dual-backbone network: performing visual semantic feature extraction on the preprocessed RGB image by using DINOv2; performing depth feature extraction on the preprocessed RGB image by using a DPT head; s4, generation of depth perception query points: inputting the visual semantic features and the depth features into a DETR network to generate the depth perception query points; and S5, target detection output: using an MLP-based detection head to obtain information of the category, the size, the center point position, the depth, the 3D size and the direction of the object.

This disclosure describes a substrate processing apparatus and a substrate processing method capable of detecting the position of a notch on a substrate with high precision. The substrate processing apparatus includes: a rotation holding unit configured to rotate the substrate while holding it with the notch; an imaging unit configured to capture images of the substrate held in the rotation holding unit; and a control unit. The control unit is configured to perform the following processes: a first process, controlling the imaging unit to capture multiple images of the entire substrate from the same imaging position while changing the imaging conditions during a period when the substrate held in the rotation holding unit is stationary, thereby acquiring multiple image images including the entire substrate; a second process, setting processing areas in different regions for each of the multiple image images according to the imaging conditions; and a third process, performing image processing on the processing areas of each of the multiple image images to detect the position of the notch on the substrate.

This invention relates to the field of track slab measurement, and discloses a portable track slab flatness measuring device and method. The device includes a track base, a track web at the upper end of the track base, and a track head at the upper end of the track web. Two sets of splicing clamping assemblies are provided on both sides of the upper end of the track head. One set of splicing clamping assemblies has a connecting plate at its upper end, and a laser detector at its upper end. The other set of splicing clamping assemblies has a connecting plate at its upper end, and a laser emitter at its upper end. Both sets of splicing clamping assemblies have electric wheels at their bottoms. The track base, track web, and track head are integrally formed. In this invention, the splicing clamping assemblies adopt a symmetrical clamping structure, eliminating the need to push them in from the end face of the track slab. They can be directly clamped and fixed at any position on the track head, solving the problem of limited installation position in existing devices. This facilitates accurate detection of local defects in the track slab and significantly improves detection flexibility.

The object detection device for detecting a target (TA) includes: a light source (10); an emission unit (14) that emits illumination light and has an optical phased array (20) that changes the emission direction of the illumination light; an orientation control unit (36) that controls the emission direction of the illumination light to scan a scanning area; a detection unit (40) that determines whether a target exists and measures the orientation of the target; a high reflectivity determination unit (50) that determines whether the target is a high reflectivity; a high reflectivity measurement unit (52) that estimates the size of the high reflectivity; and a threshold setting unit (54) that sets a detection determination threshold. The threshold setting unit sets the detection determination threshold for orientations other than the specified orientation based on the light received from the high reflectivity when the emission direction is set to an orientation other than the specified orientation, the size of the high reflectivity, the distribution of the emission intensity of the emission unit when emitting the illumination light, and the distribution of the light sensitivity of the reflected light of the detection unit.

The invention relates to a detection system. The detection system includes a robot arm, a laser sensor, and a control device. The robot arm includes a base, a multi-joint arm connected to the base, and a capacitance-type proximity sensor provided on the multi-joint arm and detecting an interfering object. The laser sensors are provided at positions facing each other with respect to the base, and emit laser light in a direction substantially parallel to a mounting surface of the robot arm to detect an interfering object. The control device stops or decelerates the operation of the robot arm on the basis of the detection result of the interfering object obtained by at least one of the capacitive proximity sensor and the laser sensor. The beneficial effect is that the interference object approaching the mechanical arm can be detected in a high-precision and large-range manner.

The utility model relates to the technical field of food detection devices, in particular to a food additive component detection device which comprises a detection device assembly, a driving assembly is fixedly connected to the top end of the detection device assembly, a transparent glass storage assembly is fixedly connected to the inner side of the driving assembly, the driving assembly comprises an arch frame, and a servo motor is fixedly connected to the front end of the arch frame. The tail end of a main shaft of the servo motor is fixedly connected with a shaft column, the outer side of the shaft column is fixedly connected with a fixed rotating disc, the inner side of the fixed rotating disc is provided with a fixed groove, the transparent glass storage assembly comprises a straight pipe, the rear end of the straight pipe is fixedly connected with an expansion pipe, the front end of the straight pipe is fixedly connected with a spherical glass shell, and the front end of the spherical glass shell is fixedly connected with a zigzag pipe. The device realizes efficient, accurate and convenient liquid food additive detection, automatic mixing and cleaning, avoids cross contamination, improves the detection efficiency and reliability, reduces the labor cost, and enhances the continuous working capability.

This invention provides a method and system for compliance detection of wearable devices in industrial settings based on edge computing. The method includes: determining an adaptive search region containing the wearable parts of a target person based on the pose geometry information of the target person in the current video frame; extracting a local region image from the current video frame based on the adaptive search region; performing feature inference based on the local region image to obtain a texture confidence index and a spatial location index; generating an instantaneous compliance evidence value and a feature semantic matching index for the current frame based on the texture confidence index and the spatial location index; and performing temporal lag filtering based on the instantaneous compliance evidence value and compliance status information from historical frames to obtain a preliminary compliance status for the current frame. This invention achieves low-latency response and high-accuracy detection of wearable devices in complex and highly interfering industrial work environments.

This invention discloses a magnetic coding unit material for road area information used in autonomous driving and its preparation method. The magnetic coding unit material is made of asphalt, limestone, magnetic ceramics, and composite mineral powder. The mass of the asphalt is 5.1% of the sum of the masses of the limestone and composite mineral powder, and the mass of the magnetic ceramics is 10%-80% of the sum of the masses of the limestone and magnetic ceramics within the same gradation range. After being magnetized by a magnetizer, the material of this invention, combined with an onboard gaussmeter, can read the binary coding information of the road, achieving comprehensive, rapid, and efficient detection and identification of road area information. It has advantages such as low cost, high reliability, energy saving, and environmental protection, while also possessing good thermal stability, corrosion resistance, mechanical properties, and electromagnetic characteristics.

This application discloses a signal detection circuit and a signal detection method. The signal detection circuit includes a latch comparator, an SR latch, a signal loss detection module, and a reset signal generator. After receiving the input signal to be detected, the latch comparator transmits the level state of its output terminal to the input terminal of the reset signal generator, the input terminal of the signal loss detection module, and the set terminal of the SR latch. After receiving a clock signal, the reset signal generator generates a reset pulse signal based on the level state and transmits it to the reset terminal of the latch comparator. The signal loss detection module adjusts the level state of its output terminal according to the level state and transmits it to the reset terminal of the SR latch. The SR latch outputs the detection result based on the level state of its set terminal and the level state of its reset terminal. This method differs significantly from existing technologies that detect signals by triggering the latch comparator with a clock signal.

An electric vehicle charging controller (EVCC) according to an embodiment of the present invention includes: a charging sequence signal 1 (CSS1) detection unit for sensing a first charging sequence signal received from an electric vehicle power supply device (EVSE) via a CSS1 line; a CSS2 detection unit for sensing a second charging sequence signal received from the EVSE via a CSS2 line; a negative voltage detection unit for detecting a negative voltage near a connector detection line; and a control unit for determining that the protective ground (PE) between the EVSE and the electric vehicle charging controller is disconnected when the voltage value detected by the negative voltage detection unit is within a predetermined value.

The application provides a simulation method and device for harmonic detection of cable joint interface pressure and a medium. The method comprises the following steps: modeling a simulation geometric model of a cable intermediate joint, and setting an ultrasonic excitation source; modeling through a nonlinear spring damper to obtain a cable joint pressure model; simulating nonlinear ultrasonic detection of the cable joint interface pressure, and obtaining a frequency spectrum diagram at each point probe. Through modeling of the nonlinear spring damper on the cable joint model, the nonlinear interaction at the interface of the cable intermediate joint is simulated, the change of the harmonic characteristics when the interface pressure changes is deeply explored by using the nonlinear harmonic detection principle, the relationship between the two is established, the state of the cable intermediate joint under various interface pressures is accurately simulated, the pressure at the interface of the cable intermediate joint is fully considered, and simulation analysis is performed on the cable joint interface pressure detection by establishing a new interface nonlinear model.

This invention relates to the field of semiconductor chip inspection technology, specifically to a fully automated intelligent defect inspection device for semiconductor chips. The device includes: a mounting box, on which a darkroom is fixedly mounted, and on which an industrial camera is fixedly mounted; a refractive imaging device comprising a trapezoidal prism and a lighting mechanism for illuminating the back of the chip. The lighting mechanism illuminates the back of the chip on a mounting rack, causing reflection from the back of the chip, and the trapezoidal prism images the reflected light onto an imaging glass plate. This invention, by using a lighting mechanism to illuminate the back of the chip on a mounting rack, causing reflection from the back of the chip, and then using a trapezoidal prism to image the reflected light onto an imaging glass plate, allows the same industrial camera to simultaneously photograph and inspect the front of the chip on the mounting rack and the back of the chip projected onto the imaging glass plate, thereby improving chip inspection efficiency.

The utility model discloses a detection box for rapidly detecting a multi-branch piezoelectric ceramic polarization clamp, which comprises a shell box body and a detection assembly, and the top of the shell box body is detachably connected with a box cover. The detection assembly comprises a spring bearing plate which is arranged in the inner cavity of the shell box body and is used for placing a circuit clamp to be detected, a power supply which is arranged on the bottom surface of the inner cavity of the shell box body, and an indicating circuit which is arranged at the inner bottom of the box cover, and spring probes which are used for correspondingly contacting with branches of the circuit clamp to be detected are distributed at the top of the spring bearing plate at intervals; the circuit is low in voltage, is high in safety coefficient, can achieve the automatic detection, is convenient to use, can rapidly and accurately detect whether the branch of the polarization clamp is abnormal or not, can completely eradicate the polarization condition under the circuit fault, improves the efficiency of detecting the fault of the branch, achieves the detection of all polarization clamps before working every day, and improves the work efficiency. The problem that time and labor are wasted when the multimeters detect one by one is solved.

The invention discloses a device and a method for online detection of settled particles in a clean controlled environment, and belongs to the technical field of environment monitoring, the device comprises a plurality of sampling glass plates arranged in a region of interest in the clean controlled environment, the sampling glass plates are used for collecting particles deposited in the clean controlled environment, and the sampling glass plates are used for collecting the settled particles in the clean controlled environment; two sides of the plurality of sampling glass plates are provided with a particle illumination system and a holographic imaging system; a part of incident light of the laser system reaches the plurality of sampling glass plates through the particle illumination system and then enters the holographic imaging system through the plurality of sampling glass plates, and the other part of incident light of the laser system directly enters the holographic imaging system; and the control computer is used for counting the quantity, particle size distribution and particle concentration information of the settled particles on the sampling glass plate. According to the detection method based on holographic optics, the anti-interference capability is high, secondary pollution is avoided, the problem of inaccurate particle size detection caused by the light scattering amplification effect of a dark field scattering method is solved, and the detection precision is high.

The present application relates to the technical field of detection device, specifically to a chloroacetic acid specific gravity testing device and testing method, which comprises a rack, the inner wall of the rack is fixedly installed with an inner cylinder arranged vertically, the inside of the inner cylinder is sequentially provided with a sample storage cavity, a liquid distribution cavity, a liquid storage cavity and a waste discharge cavity from top to bottom, the inside of the liquid storage cavity is installed with a liquid feeding module, the circumferential surface of the inner cylinder is fixedly installed with a group of testing mechanisms arranged in a circumferential array, the circumferential surface of the inner cylinder and the position above the testing mechanisms are slidingly connected with a lifting ring, the upper part of the inner cylinder is fixedly installed with a vertical screw rod driving module, and the circumferential surface of the screw rod driving module is drivingly connected with the lifting ring. The present application has the beneficial effect that the single-station monitoring structure of the traditional specific gravity testing device is changed into a multi-station detection structure through the arrangement of multiple testing mechanisms, and multiple testing mechanisms can simultaneously perform specific gravity detection of the same testing liquid in the same detection mode during work.

The application relates to a monoclonal antibody of alpha, beta and gamma amatoxin and a preparation method and application thereof. The monoclonal antibody of alpha amatoxin is prepared from an alpha amatoxin artificial antigen, the monoclonal antibody of beta amatoxin is prepared from a beta amatoxin artificial antigen, and the monoclonal antibody of gamma amatoxin is prepared from a gamma amatoxin artificial antigen; the alpha amatoxin artificial antigen is a conjugate of alpha amatoxin and keyhole limpet hemocyanin, the beta amatoxin artificial antigen is a conjugate of beta amatoxin and bovine serum albumin, and the gamma amatoxin artificial antigen is a conjugate of gamma amatoxin and human serum albumin. The three antibodies have a small cross-reaction rate, can simultaneously detect and distinguish alpha-AMA, beta-AMA and gamma-AMA in a sample, and have high accuracy.

The utility model provides a kind of intrinsically safe intelligent pipeline gas timing valve and its equipped controller, belong to pipeline gas valve technical field.It solves the single function of existing pipeline gas timing valve and the problem of poor use effect, low safety factor.The intrinsically safe intelligent pipeline gas timing valve and its equipped controller, the pipeline gas timing valve includes shell and installs on the cartridge clip type cover of shell, shell is provided with automatic opening and closing component and valve body in, shell is provided with the air inlet end that is communicated with automatic opening and closing component and the air outlet end that is communicated with valve body, valve body is also provided with valve cover, and the valve cover is provided with induction component in, shell is also provided with circuit board, and the upper contact seat and lower contact seat of the circuit board are respectively located in the upper and lower of lead-through plate.This utility model has the advantages of high-precision detection, perfect function, avoiding gas danger, improving safety use and convenient and intuitive use.

A method for detecting a storage battery of a vehicle (20) and a battery detection device (10). The method comprises: acquiring the noise intensity of the storage battery and battery information of the storage battery (S10); according to the noise intensity and the battery information, selecting a battery detection scheme from among at least two preset candidate battery detection schemes (S20), wherein the battery detection scheme comprises at least one among a discharge load value, detection frequency, duty cycle and detection time, the discharge load value and the detection frequency are each related to the noise intensity, and the duty cycle and the detection time are each related to the battery information; and detecting the storage battery according to the battery detection scheme (S30). By means of the noise intensity and the battery information, a comprehensive selection of a battery detection scheme may be used to achieve the rapid and accurate detection of the storage battery even in circumstances of noise interference and / or poor health of the storage battery.

A positioning method, a detection method and a detection system, the positioning method comprises the following steps: detecting at least two adjacent reference points on the surface of a to-be-detected object, obtaining first coordinate information of a first to-be-detected area in a first coordinate system; obtaining a conversion relationship between the first coordinate system and a second coordinate system; and obtaining second coordinate information of the first to-be-detected area and other to-be-detected areas in the second coordinate system according to the conversion relationship, the first coordinate information of the first to-be-detected area in the first coordinate system and a periodic distribution rule of the to-be-detected areas. Since the detection is performed on a limited number of reference points, the positioning speed of the to-be-detected area can be improved, accurate positioning of the to-be-detected point can be realized according to the coordinate information of the to-be-detected area in the second coordinate system, and therefore, rapid and high-precision detection of the to-be-detected area of the to-be-detected object can be realized.

The application relates to the technical field of power grid lines, in particular to a medium-voltage distribution line fault detection method and system, a terminal and a storage medium, the method comprising: judging whether a fault alarm associated with a line fault is received, if the fault alarm is received, obtaining a fault area and a fault type corresponding to the fault alarm based on the fault alarm, judging whether the fault alarm is a specified alarm based on the fault area and the fault type, and detecting the line fault based on the specified alarm if the fault alarm is the specified alarm; if the fault alarm is not the specified alarm, judging whether a sudden factor associated with the line fault exists in the fault area within a preset time range, obtaining the sudden factor if the sudden factor associated with the line fault exists, and detecting the line fault based on the sudden factor. The application helps to improve the line fault detection efficiency.

The application discloses a model construction method for quantum computing industry quality big data, and relates to the technical field of industry product quality detection, and comprises the following steps: acquiring the dark count stability standard and historical dark count stability quality data of a single photon detector, and acquiring the equipment production operation data of a production equipment; obtaining standard quality data and standard operation data; constructing a single photon detector intelligent sampling inspection model based on the standard quality data and the standard operation data; constructing a sampling inspection correction strategy based on a product sampling inspection reference scheme, and sampling inspecting the single photon detector; the application is used to solve the problem that the existing industry product quality detection technology cannot locate single photon detector products with high risk of poor quality according to equipment parameters during production when detecting the dark count stability of the single photon detector products, and cannot accurately sample inspect the single photon detector products with a purpose, thereby reducing the detection cost and after-sales cost.

The invention relates to a pump (1) having an electric motor (2), which has a rotor (3) and a stator (5) surrounding the rotor, which stator is injection-molded with a plastic housing (4) and has an end-side opening (6), having a circuit board (7), which closes the end-side opening (6) in a sealing manner and, together with the stator (5), defines an interior space (9) through which a cooling fluid can flow, the rotor (3) is arranged in the interior space. The key point of the invention is that an elastic seal (10) is arranged between the plastic housing (4) and the printed circuit board (7), and at least two fastening elements (11) are arranged on the end face of the plastic housing (4), which fastening elements are connected to fastening contours on the printed circuit board (7).

This utility model discloses a verticality measuring ruler for building engineering, relating to the field of measuring ruler technology. Its key technical features include a ruler body comprising a first ruler rod and a second ruler rod. The upper end of the first ruler rod and the lower end of the second ruler rod are rotatably connected via a rotating shaft. A locking mechanism is provided between the first and second ruler rods. During use, rotating the second and first ruler rods makes the ruler body vertical. During this process, under the action of a spring, a limiting tooth block is pushed to engage with a slot on the surface of the insertion plate, thus firmly connecting the first and second ruler rods together and preventing bending between them. This provides strong stability. During measurement, under the gravity of a lead block, when the wall is not vertical, the vertical gravity of the lead block causes the pointer to point to the corresponding sector scale. The verticality of the wall can then be measured using the sector scale indicated by the pointer. This method is convenient to operate and offers high accuracy.

This application discloses a method for detecting astaxanthin content. The provided method includes the following steps: mixing the sample to be tested with acetone to prepare a test solution; performing high-performance liquid chromatography (HPLC) on the test solution. The HPLC conditions include: using tert-butyl methyl ether as mobile phase A and a mixed solution of methanol and acetonitrile as mobile phase B, with isocratic elution. The provided detection method uses HPLC, employing a mixed solvent of tert-butyl methyl ether and methanol-acetonitrile as the mobile phase, and successfully achieves efficient and rapid separation of astaxanthin through isocratic elution. The chromatographic peak shape is excellent, effectively overcoming interference from proteins, lipids, nutrients, and ionic components in a complex matrix, providing a reliable analytical tool for assessing the intestinal absorption characteristics of astaxanthin.

The utility model provides a radial symmetry degree detection device for a butterfly valve plate, which belongs to the field of detection devices and comprises a workbench, a measuring assembly and a fixing assembly. A mounting frame is mounted at the top of the workbench, and mounting cavities are formed in the two sides of the interior of the mounting frame; a supporting frame is installed in an installation cavity, a stepping motor at the top of the supporting frame rotates to drive a lead screw at the output end to rotate, the lead screw rotates to drive a lifting block with the surface in threaded connection to rotate, an installation base is installed on the surface of the lifting block, and the installation base slides on the surfaces of guide rails on the two sides of the surface of the supporting frame through back sliding blocks. The lifting block is adjusted along the screw rod in a lifting mode when the screw rod rotates, the lifting block drives the optical measuring instrument on the surface of the mounting base to measure the butterfly valve plate, the radial symmetry degree of the butterfly valve plate is detected, a manual detection mode is driven, and the detection accuracy is improved.

The invention provides a water quality detection device and method based on friction nanometer power generation. The method is used for solving the problem that heavy metal ion type identification and concentration quantification are difficult to consider in an existing friction electric signal-based liquid detection method. Comprising a multi-electrode triboelectric sensor, and the multi-electrode triboelectric sensor comprises a substrate, a metal electrode and a triboelectric layer. More than two metal electrodes are arranged between the base plate and the triboelectric layer, the plurality of metal electrodes are sequentially arranged at equal intervals along the length direction of the base plate, during water quality detection, liquid drops are guided to slide along the length direction of the base plate, and the liquid drops sequentially pass through the plurality of metal electrode areas in the sliding process, so that the water quality is detected. And a time sequence-related friction electric signal is generated at each metal electrode. According to the invention, rapid and accurate detection of the type and concentration of heavy metal ions is realized, and the device is simple, portable, low in cost, self-powered, capable of realizing accurate concentration quantification in a wide concentration range, and extremely low in detection limit.

The application belongs to the technical field of optical detection, and particularly relates to a spectrum detection method based on differential absorption, which can detect and analyze the absorption spectrum of most non-single-element molecules. The application is a tunable semiconductor laser absorption spectrum technology detection method based on the principle of differential absorption, which optimizes the defect of insufficient tunable ability of traditional absorption spectrum technology, can detect and analyze the absorption spectrum of most non-single-element molecules, and provides a new path for the development of tunable semiconductor laser absorption spectrum technology.

The present application relates to a kind of granary pore detection numerical simulation system and method belong to the technical field of grain pile pore detection numerical simulation, the system of the present application is by physical model establishment and grid division module, particle accumulation simulation module, DEM-CFD coupling calculation module, data processing module is composed of, can accurately simulate the pore distribution law of arbitrary area or grain layer of grain pile, generates pore distribution nephogram, realizes the rapid, high-precision detection of grain pile porosity, provides key porosity value for the mechanical ventilation of stored grain pile, provides accurate, intuitive porosity information for stored grain practice, it is helpful for relevant worker to find and handle abnormal situation in grain pile in time, take appropriate management measures, to forecast and analyze the change rule of grain state, realize safe storage of grain has important significance, provides a new technical means for the complex stored grain system research of the mutual coupling of multiple factors.