220results about "Optical detection" patented technology

The application discloses a formation fluid identification method, comprising the following steps: acquiring first infrared spectrum data and second infrared spectrum data of a formation section to be interpreted; performing curve fitting on the first infrared spectrum data to obtain a fitting curve, determining a first factor according to an extreme value of a first wavelength section of the fitting curve, determining a second factor according to an opening and area integral of the fitting curve, and determining a third factor according to a center of a second wavelength section of the fitting curve; calculating a standard deviation curve of a standard deviation of longitudinal absorption at all wavelengths of a same depth point according to the second infrared spectrum data, and calculating a peak tailing factor of the standard deviation curve; and determining a type of the formation section according to the first factor, the second factor, the third factor and the peak tailing factor. The application further discloses a system, a computer device and a readable storage medium.

This invention relates to the field of photoelectric detection and performance monitoring technology, specifically to a real-time performance verification system for a safety light curtain based on pulse feedback. The system performs the following steps: based on the changes in the effective photon count of each pulse of the safety light curtain, the effective photon count of pulses whose decrease in effective photon count is due to transient interference is smoothed to obtain a photon transmission efficiency time series; based on the photon transmission efficiency time series, a dynamic derivative curve of the pulse edge is established, and pulses within a period where the core parameter of the dynamic derivative curve at the pulse edge continuously changes in a second-order direction towards the target direction are identified as abnormal pulses; each key time node of the abnormal pulse is determined; based on the changes in the differences between each key time node, the fault cause corresponding to the abnormal pulse is located, thus improving the accuracy of real-time performance monitoring of the safety light curtain.

A camera-wing-system for a vehicle comprising at least one camera for recording a field of view (FOV) in a scene at least around a rear part of the vehicle, wherein a presented view is provided to a driver of the vehicle as a part of the field of view, the camera-wing-system is adapted to update an image section from the presented view of the at least one camera to another presented view different from the previous presented view to keep a point of interest of the rear part of the vehicle, preferably a trailer as the rear part of the vehicle, within the presented view provided to the driver regardless of a driving situation of the vehicle, and the image section is updated basis on a distance between the at least one camera and a geometric calculation of a triangle between a center of rotation, a salient point, and the at least one camera of the vehicle.

The utility model discloses a kind of safety belt body child automatic locking mechanism press fitting and detection equipment, including lower mould, jacking mechanism, downstroke mechanism, upper mould, downstroke action mechanism, rocking mechanism, cutting and clamping mechanism, material receiving head mechanism, lower mould moving mechanism and detection camera;The jacking mechanism, lower mould and downstroke mechanism are sequentially arranged from bottom to top, and child automatic locking mechanism body fixing station is equipped on lower mould, downstroke mechanism can be lifted, and downstroke action mechanism and cutting and clamping mechanism are all arranged on downstroke mechanism, and upper mould is fixed in downstroke action mechanism bottom;Rocking mechanism is arranged on downstroke action mechanism.Compared with prior art, in the utility model device, each mechanism cooperates, and the efficient assembly and accurate detection of safety belt child automatic locking mechanism body and child automatic locking mechanism can be realized.

The utility model discloses a battery sorting system, including host computer, sorting carousel, sorting channel and residual detection sensor, wherein: sorting carousel is used for conveying the cup that holds the electric core to sorting channel, residual detection sensor sets up in the side of sorting channel, and in the position of the S*K+1 cup corresponding with the starting position of the grabbing position of sorting channel, is used for detecting whether there is cup in the position of the S*K+1 cup of sorting channel, K is the cup number of once grabbing in the grabbing position, and S is positive integer, host computer is connected with residual detection sensor communication, is used for determining whether the battery sorting system is unusual according to the detection result of residual detection sensor. Host computer obtains the detection result of residual detection sensor, can judge whether the cup number in sorting channel is unusual, and judges whether the sorting system is unusual, effectively solves the sorting error caused by the cup number unusual, improves the accuracy of sorting system.

The utility model relates to a kind of false core detection device for supercharger turbine wax mould production, the mould including upper mould and lower mould used in wax mould production, lower mould is provided with lower cavity, positioning sleeve for placing false core is equipped in lower cavity middle part, when false core is placed on positioning sleeve, the jack plug on false core is covered on positioning sleeve;Detection device includes: mounting bracket, is installed in the side of lower mould;Ranging sensor, install on mounting bracket, the emission path of the detection signal of ranging sensor passes through the upper opening of lower cavity, while emission path passes through the space occupied when false core is placed on positioning sleeve;Wherein, when false core is placed on positioning sleeve or false core is not placed on positioning sleeve, the distance signal output by ranging sensor is different, for judging whether false core is placed in lower cavity, so as not to carry out mould closing and wax pressing operation when not placing false core, realize the stable production of wax mould, improve the qualified rate of casting.

This application provides a cooking appliance, relating to the field of household appliance technology. The cooking appliance includes a control panel and a detection device. The control panel has a supporting surface for placing a pot, and the supporting surface has a heating zone. The detection device includes a signal component and a reflective component, located on opposite sides of the heating zone. The signal component includes a transmitting unit and a receiving unit. Along the thickness direction of the control panel, at least a portion of the transmitting unit, receiving unit, and reflective component extends beyond the supporting surface. The transmitting unit emits a light signal to the reflective component, and the reflective component reflects the light signal back to the receiving unit. When a pot is placed on the control panel, the pot is positioned between the signal component and the reflective component, blocking the light signal between them. When no pot is placed on the control panel, the light signal between the signal component and the reflective component is continuous. This cooking appliance can solve the safety hazard caused by false detection when no pot is present.

To provide medical treatment systems and methods using a plurality of fluid lines.SOLUTION: A medical treatment system, such as a peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a patient line state detector for detecting whether a patient line is primed before it is to be connected to the patient. The patient line state detector can also detect whether a patient line has been properly mounted for priming. Both patient line presence / absence and fill state can be determined using an optical system, e.g., one that employs a single optical sensor.SELECTED DRAWING: Figure 9- 2

The application relates to the field of automatic detection sensors, in particular to an ultrathin area light curtain sensor which comprises a light projector, a light receiver and a warning mechanism, the light projector comprises a base, a circuit board, an infrared beam emitter, a rotating rod and an adjusting assembly, one end of the rotating rod is fixedly connected to the base, the other end of the rotating rod away from the base is rotationally connected to the circuit board, the adjusting assembly is used for driving the rotating rod to rotate, the circuit board is fixedly connected with the infrared beam emitter on the side away from the base, a Fresnel lens is fixedly connected to the side of the infrared beam emitter away from the base, infrared light beams emitted by the infrared beam emitter pass through the Fresnel lens and are output to infrared receiving photoelectric devices, the warning mechanism is electrically connected to the circuit board, and the warning mechanism is used for issuing a signal to warn a user. The application has the effect that the mounting frame can easily receive infrared light beams when being inclined, the effectiveness of the infrared light beams is guaranteed, and the application range of the light curtain sensor is increased.

An improved remote insect detector is disclosed. The detector includes a housing. The detector further includes an insect funnel passage located on an underside of the housing and dimensioned to retain a target insect in a detecting position and an optical beam detection circuit operable to detect the target insect in the detecting position.

This invention discloses a method and apparatus for laser digital detection of gas in a transformer, comprising: replacing at least a portion of a pipe at a specific location in the transformer with a transparent pipe; uniformly arranging a plurality of laser emitters and receivers at intervals on the outer surface of the sidewall of the transparent pipe; initiating the circulation of insulating oil in the transformer before commissioning; emitting a laser at the emitting end of each laser emitter and receiving the laser emitted by the corresponding emitting end at the receiving end of each laser emitter and receiver; acquiring the difference between the brightness of the laser emitted by the emitting end of each laser emitter and the brightness of the laser received by the corresponding receiving end; if the difference is greater than a preset threshold, acquiring detection data within a detection cycle; calculating the fault value corresponding to the detection data according to a predetermined functional relationship; and predicting whether gas in the transformer oil will cause a transformer fault based on the relationship between the fault value and the fault threshold. This invention can predict whether a fault will occur in a commissioned transformer.

This invention discloses a gesture sensing circuit with adjustable sensing distance, a range hood, and a control method. In this gesture sensing circuit, the infrared emitting circuit includes a first current regulating unit connected in series with an infrared emitting unit and a switching unit. The first current regulating unit includes at least two current regulating branches with different resistances, and each current regulating branch is connected one-to-one to the power supply voltage output terminals of the microprocessor. The microprocessor selects the current regulating branch to supply power, selects the current regulating branch connected in series with the infrared emitting unit and the switching unit, controls the conduction current of the series path, and changes the carrier signal strength of the infrared emitting unit. This invention solves the problem that the fixed detection range of existing gesture sensing circuits cannot adapt to complex user environments. It allows for flexible adjustment of the sensing distance within a larger adjustment range, meeting the actual gesture control needs of users and improving the user experience.

This application relates to the field of basketball sports technology, and discloses a basketball shooting scoring system and an infrared sensing specular diffuse reflection detection method. The system includes: an infrared emitting module for emitting infrared signals; an infrared receiving module for receiving reflected infrared signals; a specular reflection structure module for reflecting the infrared beam at a preset angle; a data acquisition module for acquiring the state of the reflected light signal; a trajectory analysis module for generating spectral data; and a scoring output module for displaying the shooting score in real time. The method includes: infrared signal emission; infrared signal reception and disturbance data generation; signal reflection and interference region formation; path disturbance matrix generation; trajectory analysis and feature extraction; trajectory determination and scoring feedback; and data recording and result output. This invention adopts a design combining an infrared emitting module and an infrared receiving module, which can accurately construct an infrared light path and capture the trajectory of a basketball shot.

The utility model discloses PCB board plug -in element pin length abnormal detection device, including the ruler fine adjustment sliding table, first fixed seat, detection axle and second fixed seat, the first fixed seat is fixedly installed in the top of ruler fine adjustment sliding table through bolt, the second fixed seat fixedly installed in the top of first fixed seat, detection axle rotates and is installed on the second fixed seat, when PCB board plug -in element pin length is abnormal, promotes detection axle rotation, when PCB board plug -in element rear pin is not cut off length abnormality, when conveying through detection axle, abnormal pin will be hung on detection axle, and detection axle stress swings, and the positioning piece synchronous deflection and shield the light path of photoelectric sensor, and photoelectric sensor sends signal to PLC, and PLC output signal to the collection board machine, and the collection board machine receives the signal and will stop immediately alarm, ensure that the abnormal PCB board is intercepted before entering next procedure, avoid batch quality accident.

The application provides a kicking quilt sensor circuit and an intelligent quilt, and relates to the technical field of intelligent quilts.The kicking quilt sensor circuit comprises a temperature sensor array, a control circuit and a wireless circuit, the temperature sensor array is arranged on a plurality of preset positions of the intelligent quilt, the signal input end of the control circuit is connected with the output end of the temperature sensor array, the communication end of the wireless circuit is connected with the communication end of the control circuit, and the wireless circuit is used for accessing a user terminal.The application can accurately monitor the user's behavior of kicking the quilt, and only needs to arrange the temperature sensor array on the plurality of preset positions of the intelligent quilt, so that the installation process of the kicking monitoring device is greatly simplified.

The utility model relates to photographing detection technology, to solve the detection efficiency low, the consistency is poor, the technical problem such as the risk of missing detection of the inside and outside wall of the existing open barrel, and a kind of open barrel inside and outside foreign matter detection device is provided, including roller conveying line, barrel rotating assembly, barrel detection device, barrel outside detection device and data processing module, barrel detection device includes first drive motor and vertical lifting device;The bottom of the lifting end of vertical lifting device is provided with bottom light source and first camera, for photographing collection to the bottom in the barrel;Second camera and third camera are arranged at intervals along vertical direction on vertical lifting device, for photographing collection to the lateral wall in the barrel;Barrel outside detection device includes the fourth camera and the fifth camera set on barrel outside detection support, for photographing collection to the lateral wall outside the barrel;Data processing module is used to receive the photographing data of each camera and carries out analysis processing.

The application provides a knitted fabric missing yarn detection system and method based on multispectral imaging, wherein the detection method comprises the following steps: projecting ultraviolet and near-infrared band light on the knitted fabric; collecting a visible fluorescence image of the fabric under ultraviolet band irradiation and a near-infrared perspective image of the fabric under near-infrared band irradiation; extracting a spandex light-emitting skeleton in the visible fluorescence image, and performing primary missing yarn discrimination in combination with the background characteristics of cotton yarn in the near-infrared perspective image; extracting topological deformation parameters of cotton yarn loops in the near-infrared perspective image, identifying the current tension state of the fabric, and generating a threshold compensation coefficient; using the threshold compensation coefficient to dynamically adjust the light-emitting judgment reference threshold used for missing yarn discrimination; and using the adjusted reference threshold to check the primary missing yarn alarm and output the final detection result. The scheme effectively avoids the false judgment of normal yarns that are thinned under high tension as missing yarns.

The embodiment of the present application discloses a method for identifying screen water entry, comprising: detecting proximity data obtained by a proximity sensor; and outputting a screen water entry risk prompt when the proximity data is less than or equal to a preset alarm threshold. The embodiment of the present application also provides a device for identifying screen water entry, which identifies that water covers the surface of a display screen glass cover plate according to the signal quantity received by a sensor receiving end, judges and prompts that the intelligent terminal has a risk of water entry.

To provide a computing device, abnormality detection method, infrared image computation method, and infrared image computation program, which enable computation of an infrared image from a sensor device that offers reduced weight, costs, and installation work.SOLUTION: A computing device disclosed herein is for computing an infrared image on the front side of an infrared image sensor using a signal output of the infrared image sensor having a diffractive grating installed on a surface thereof, and is provided with multiple integral kernel numerical tables for integrally converting a first received light intensity function on an x-y coordinate system of the infrared image sensor into a second received light intensity function on a θ-φ coordinate system in a direction of an incident light flux to the infrared image sensor as conversion maps. The conversion maps are switched accordion to the purpose to compute a required infrared image.SELECTED DRAWING: Figure 1

An image forming apparatus includes a transportation guide and a detector. The transportation guide is provided along a curved portion of a transportation path for a sheet. The transportation guide has a curved shape and includes openings. The detector is provided on an opposite side of the transportation guide from the curved portion, and detects an end of the sheet in a scanning direction. In the image forming apparatus, the detector detects an end of a sheet in the scanning direction using the curve-shaped transportation guide including openings. This makes it possible to detect the sheet efficiently.

An image forming apparatus (1) according to an embodiment of the present technology includes a transportation guide (6) and a detector (7). The transportation guide (6) is provided along a curved portion of a transportation path (14) for a sheet (2). The transportation guide (6) has a curved shape and includes openings (19). The detector (7) is provided on an opposite side of the transportation guide (6) from the curved portion, and detects an end (27) of the sheet (2) in a scanning direction. In the image forming apparatus (1), the detector (7) detects an end (27) of a sheet (2) in the scanning direction using the curve-shaped transportation guide (6) including openings (19). This makes it possible to detect the sheet (2) efficiently.

To provide a computing device, program, abnormality detection method, and computation method, which enable computation of an infrared image from a sensor device that offers reduced weight, costs, and installation work to detect abnormalities.SOLUTION: A computing device disclosed herein is for computing an infrared image on the front side of an infrared image sensor using a signal output of the infrared image sensor having a diffractive grating installed on a surface thereof, and is provided with multiple integral kernel numerical tables for integrally converting a first received light intensity function on an x-y coordinate system of the infrared image sensor into a second received light intensity function on a θ-φ coordinate system in a direction of an incident light flux to the infrared image sensor as conversion maps. The computing device comprises an abnormality detection unit configured to compute a required infrared image by switching the conversion maps according to the purpose, and detect an object regarded as a safety threat or detect that ambient temperature is such that a space within a field of view cannot be monitored from the obtained infrared image.SELECTED DRAWING: Figure 1

This application discloses a signal detection and processing device, relating to the field of data processing technology. The signal detection and processing device includes: a signal acquisition circuit connected to a photoelectric sensor, used to acquire a first electrical signal output by the photoelectric sensor and convert the first electrical signal into a second electrical signal, wherein the voltage of the second electrical signal is greater than the voltage of the first electrical signal; a main control chip circuit connected to the signal acquisition circuit, used to convert the second electrical signal sent by the signal acquisition circuit into quantized data; the main control chip circuit is also used to output the quantized data. This application reduces the size of the signal detection and processing device and improves its integration.

The utility model provides a silk screen before positioning perforation detection structure, including positioning support and setting photoelectric sensor module on positioning support, positioning support includes installation base and setting support body on installation base, installation base sets up on gantry beam, one end of support body is connected with installation base, the other end of support body is connected with photoelectric sensor module, and photoelectric sensor module is aligned the drilling hole position on glass through positioning support, and it is convenient for photoelectric sensor module to identify and detect whether the hole position is completely punched, effectively avoids that the glass of which the hole position is not completely punched flows into the silk screen machine, reduces the damage risk of screen, reduces screen replacement frequency, is favorable for reducing production and manual cost.

The application discloses a dynamic threshold snow cover identification method for high-resolution series optical satellites. A plurality of high-resolution optical satellite sensors are preprocessed according to a preset condition, and high-resolution satellite reflectivity products are obtained. The high-resolution cloud and snow area is separated by fusing a cloud detection section product of a Fengyun meteorological satellite. Based on the optical characteristics and spatial distribution characteristics of snow, a blue wave band dynamic threshold algorithm is applied to different regions to realize adaptive identification threshold setting. Then, the spatial distribution of snow cover is obtained through a threshold extraction method, and snow cover monitoring is realized. The snow cover identification method for high-resolution optical satellites has good scalability, can adaptively set the snow identification threshold, improve the identification accuracy, and efficiently and accurately monitor the snow surface change.

The present application relates to the technical field of coating film forming equipment, and particularly relates to a knife head detection and wiping system and a knife head detection and wiping method, comprising a knife head assembly with a lip, a wiping mechanism arranged on one side, a visual detection mechanism arranged on the other side and a controller. The wiping mechanism wipes the lip with a reel type wiping cloth; the visual detection mechanism captures the lip by driving a visual camera through a visual transplanting module; and the controller controls the wiping mechanism to act as required according to the captured data. The present application integrates the wiping assembly and the knife head, has a compact structure and a low replacement frequency of consumables; the lip effusion or crystallization state is judged in real time through vision, and automatic wiping as required is realized; meanwhile, the visual mechanism can detect the lip damage and gap consistency on line, and the knife head state diagnosis can be completed without disassembly, so that the stability and intelligent level of the coating process are improved.

The application discloses a concrete crack patrol device and belongs to the technical field of concrete crack detection. The device comprises a body assembly, a measuring assembly and a compensation assembly. The body assembly comprises a remote control trolley. The measuring assembly comprises a laser beam emitter and a photoelectric sensor arranged at the bottom of the remote control trolley. The laser beam emitter emits laser beams to the concrete crack, and the photoelectric sensor is used for receiving the reflected laser beams. The compensation assembly comprises a slide rail and a reflection member arranged at the bottom of the remote control trolley. The photoelectric sensor is adapted to slide along the length direction of the slide rail, and the reflection member is rotationally connected to the bottom of the remote control trolley. The compensation assembly is used for compensating the laser beams, thereby reducing the influence of insufficient light. The second gear is arranged to slide, so that the first gear is prevented from directly engaging with the second gear when moving, and tooth breakage is avoided.

The application discloses a flat surface cleaning device and an edge detection method thereof, wherein the flat surface cleaning device comprises a cleaning main body and a sensing main body, the cleaning main body is used for performing a cleaning operation of a flat surface, the sensing main body is used for feeding back multi-directional edge information of the flat surface to the cleaning main body, the sensing main body is installed on both sides of the bottom of the cleaning main body, the sensing main body has a conduction state and an off state, the cleaning main body performs the cleaning operation when the sensing main body is in the conduction state, and the cleaning main body performs cleaning posture adjustment when the sensing main body is in the off state. Through the multi-directional sensing detection design, the application realizes the capability of omnidirectional edge detection, adopts the protection design, sets the sensing switch in the bottom of the cleaning main body, combines the mechanical trigger structure, enhances the stability and the anti-interference property, and through the modular design of the sensing main body and the cleaning main body, the maintenance and replacement process is simplified.

To provide an approach detection apparatus, a display unit, and an information processing system configured to detect an object to be detected that is close to a display surface of a display equipped with a movable mechanism while preventing an other device or the object from being detected for an operation on the other device.SOLUTION: An approach detection apparatus for detecting an object approaching a display surface of a display 2 is configured to arrange a plurality of infrared LEDs and a plurality of photodiodes under the display surface in a lateral direction, and detect a position of an object to be detected within a detection range 10 on the basis of intensity of reflected light of infrared light emitted by the infrared LEDs, detected by the photodiodes. When a lateral angle of the display surface is changed, irradiation intensities of the infrared LEDs are changed so that the detection range 10 may be a range obtained by excluding a range where an other device or an operation of a driver on the other device is to be included in the lateral angle, from a standard detection range 10.SELECTED DRAWING: Figure 8

The application discloses a slice taking auxiliary mechanism, a slice magazine device and a slice taking and withdrawing equipment, and relates to the technical field of digital pathology. The slice taking auxiliary mechanism comprises a mechanism carrier, a pushing-out piece and a pushing-out driving assembly. The pushing-out piece is movably installed on the mechanism carrier. The pushing-out driving assembly is installed on the mechanism carrier and is connected with the pushing-out piece, and is used for driving the pushing-out piece to move in the direction of pushing out the slice. Through the ingenious use of the mechanical action of the pushing-out driving assembly, the pushing-out piece is effectively driven to move accurately in the target direction of pushing out the slice, so that the grasping operation of the clamping jaw is greatly facilitated. The design successfully solves many problems existing in the traditional slice taking mode.