75results about How to "Avoid missed detection" patented technology

The invention, which relates to the intelligent traffic industry, discloses a high efficient and real-time analytical method of vehicle fake license suspicion and an apparatus thereof. According to the invention, all data for fake license analyses are stored in a memory; it is maintained that each vehicle is corresponded to only one record during the processing process and the total amount of the data is controlled; and it is determined whether a vehicle a fake licensed one by calculating whether a time difference of the same vehicle between two checkposts is less than a time threshold between the two checkposts, so that it can be rapidly and accurately determined whether there is fake license suspicion. Because distance between checkposts are various and the speed limits are different, time for driving a distance between each two checkposts is different from others; therefore, the shortest time for passing through the two checkposts can be determined by calculating a time threshold between the two checkposts; and the determination result is more reasonable than an arranged unified global time threshold. Moreover, a memory analytical mode is used to replace a traditional Oracle database query analytical mode; therefore, efficiency is high and operability is strong; and an operation burden of the Oracle database is reduced.

The invention relates to a sheet workpiece phased array ultrasonic guided wave imaging detection system and a detection method of the system. The system comprises a phased array ultrasonic detector, a phased array ultrasonic guided wave probe and a position encoder. The phased array ultrasonic guided wave probe comprises a phased array ultrasonic probe body and an ultrasonic guided wave wedge, an inclined rectangular groove is formed in the vertical side face of the ultrasonic guided wave wedge, the phased array ultrasonic probe body further comprises a probe main body and array wafers, the phased array ultrasonic probe body is installed on the inclined face of the ultrasonic guided wave wedge, the phased array ultrasonic probe body is tightly combined with the ultrasonic guided wave wedge through a coupling agent, and the array wafers are distributed on the inclined face in the depth direction of the inclined rectangular groove. The ultrasonic guided wave wedge and the array wafers are adopted for large-area detection, so that detection efficiency is improved, edges of detection areas are covered with each other in an overlapped mode, and detection results are more accurate; the inclined rectangular groove is formed to generate a coupling monitoring signal and a detection signal which are matched with each other so that defects of sheet workpieces can be judged, and accuracy of the detection results is further improved.

The invention relates to a road traffic sign automatic detection and identification method. The method is realized based on an automatic detection and identification system. The automatic detection and identification system comprises a traffic sign acquisition module, a traffic sign detection and processing module and a traffic sign identification module. The traffic sign acquisition module is used for collecting driving videos; the traffic sign detection and processing module is used for carrying out processing on the collected videos, detecting image frames containing traffic signs and carrying out extraction on regions of interest; and the traffic sign identification module is used for carrying out classification and recognition on images of the extracted regions of interest. The road traffic sign automatic detection and identification method can identify various types of traffic signs, is high in precision, high in identification accuracy and good in robustness, reduces influence of illumination, geometric deformation and rotation and the like, and has better anti-interference capability.

The present invention provides a target recognition method, system and device in a commodity image, and a storage medium. The method comprises: S1: acquiring a plurality of images, inputting the images into a pre-trained scenario classification model, and determining an application scenario corresponding to an image; S2: selecting a pre-trained ROI area detection model according to the applicationscenario corresponding to the image, and detecting ROI areas on the image; S3: correcting the image with the detected ROI areas to generate a corrected image; and S4: inputting the corrected image into a pre-trained target recognition model to perform recognition of each commodity area on the image. According to the technical scheme of the present invention, before the recognition of the commodity area, scenario classification, quality adjustment, ROI area recognition, and image correction are sequentially performed in an innovative manner, and finally recognition of the commodity area is performed, so that the recognition accuracy of the commodity area is remarkably improved, the recognition accuracy of the commodity is increased from 60% to 95%, and the application of the commodity recognition technology in new retail areas is promoted.

The invention discloses automatic detecting and adding methods and a system for a base station, a terminal and an adjacent region relation. The methods comprise the following steps of: sending a detection instruction containing preset detection frequency points to the terminal through the base station, then, detecting cells on the preset detection frequency points according to the detection instruction by the terminal, feeding back cell information of the cells to the base station, wherein detected signal intensity of the cell information can meet a preset condition, and the base station can judge whether a new adjacent region exists or not according to the cell information. Namely, when the invention detects an adjacent region, the cell information of all cells which are detected on the detection frequency points are really not sent to the base station, but the cell information of the cells is sent to the base station, wherein the signal intensity of the cell information can meet the preset condition. Therefore, the detected cells can be effectively screened, redundant information in an adjacent region relation allocation process can be greatly reduced, an adjacent region relation maintenance process can be simplified, adjacent region relation maintenance efficiency can be improved, moreover, when the terminal is switched, the adjacent region to be switched can be directly found as soon as possible, and efficiency and a success ratio for terminal switching can be improved.

The present application relates to a black screen detection method, a device, a computer device and a storage medium. The method comprises the following steps: when a video player is in a playing state, collecting picture frames being played in a playing interface of the video player according to a specified sampling frequency; acquiring similarity indication information between the at least two collected picture frames; When a degree of similarity between at least two picture frames indicated by the similarity indication information satisfies a preset condition, determining that a playing interface of the video player generates a black screen. In this process, since at least two picture frames compared are picture frames collected from the same playing interface, when the two picture frames are both picture frames of a black screen picture, sufficient consistency can be ensured between the two picture frames, leakage detection of the black screen can be effectively avoided, and the effect of improving the accuracy of the black screen detection can be achieved.

The embodiment of the present application discloses a method, a device, a storage medium and a terminal for detecting abnormal boot-up of a terminal. The method includes detecting an init process startup; obtaining the state information of the boot animation process through the preset detection service; when the startup failure is determined according to the state information, saving the target information causing the startup failure fault in the startup process. Through the technical proposal, the preset detection service can be started after the boot process enters the Android layer to detect the boot state, and the log causing the non-boot problem in the whole process can be obtained and stored when the boot fails; It can cover the entire phase of the boot process to avoid leakage detection problems. In addition, it can save the target information that causes the boot failure, and also facilitate the terminal developers to analyze the causes of non-boot problems.

The embodiments of the invention disclose a chip and a detection method thereof. The chip includes a substrate, at least one laser detection circuit, and multiple key circuit modules. The laser detection circuit includes laser detection units, a NAND logic unit, and an AND logic unit. Each laser detection unit includes a monitoring diode and a first charging transistor; the anode of the monitoring diode is grounded; the input end of the first charging transistor is electrically connected with a power supply; and the cathode of the monitoring diode and the output end of the first charging transistor are electrically connected and serve as the output end of the laser detection unit. Each input end of the NAND logic unit is electrically connected with the output end of one laser detection unit, a first input end of the AND logic unit is electrically connected with the output end of the NAND logic unit, and a second input end of the AND logic unit receives an enable signal. Each key circuit module is set adjacent to at least one laser detection unit. Through the implementation of the embodiments of the invention, the accuracy of laser detection is improved, and missing detection is avoided.

A weft knitting machine can detect abnormal vibrations resulting from an abnormal contact between a carriage and knitting needles, in a high sensitivity. A method can detect those abnormal vibrations. The weft knitting machine comprises a needle bed (1) having a plurality of knitting needles arrayed in parallel, and a carriage (2) running reciprocally over the needle bed (1) for moving the knitting needles back and forth. The carriage (2) includes vibration detecting means (or a vibration sensor (4)), which detects the vibrations to occur in a direction to intersect the running direction of the carriage (2). On the basis of the detection result, abnormal deciding means decides whether or not the abnormal vibrations are caused by the abnormal contact between the carriage (2) and the knitting needles. Even in case the running speed of the carriage (2) is high, the abnormal vibrations can be so detected as are discriminated from the vibrations accompanying the normal knitting operation.

The invention relates to a defect detection device used for an air-blowing mini-type optical cable jacket surface. The defect detection device used for the air-blowing mini-type optical cable jacket surface comprises a detection seat sleeve. The detection seat sleeve is composed of an upper seat sleeve and a lower sleeve in a half-and-half opening and closing mode. Cable penetrating through holes are formed in the middles of the upper seat sleeve and the lower seat sleeve. One sides of the upper seat sleeve and the lower seat sleeve are connected in a hinged mode through a tensioner. Half-and-half sizing dies are arranged at the front ends and/or the rear ends of the upper seat sleeve and the lower seat sleeve in an installation mode. Contact alarm switches are arranged on the other sides of the upper seat sleeve and the lower seat sleeve in a configured mode. An aberration reflecting type detector is arranged in an installation mode on the circumference, along the cable penetrating through holes, of the detection seat sleeve. The defect detection device used for the air-blowing mini-type optical cable jacket surface has the advantages that due to the device is installed in a production process of a air-blowing mini-type optical cable, the whole segment length is detected, the defects of the optical cable surface can be effectively detected, detection precision is high, risks of air-blowing construction are avoided, due to adoption of the aberration reflecting type detector, the possible defects on each position of the air-blowing mini-type optical cable surface can be detected, precision is high, and therefore detection omission to small material dropping points of the mini-type optical cable is avoided. According to the detection seat sleeve, a structure of the upper seat sleeve and the lower seat sleeve in a half-and-half opening and closing mode is adopted, and use and installation are convenient to achieve.

The invention discloses a noise detection method and apparatus belonging to the technical field of terminals. The method comprises the following steps of: determining, for each frame signal of a plurality of frame signals included in a target audio signal, the number of subbands included in the frame signal and the frequency domain amplitude average value of each subband based on the cutoff frequency of the frame signal, wherein the target audio signal is an audio signal under noise detection; determining a noise detection coefficient of the target audio signal based on a frequency domain amplitude average value of each of the plurality of frame signals; and when the noise detection coefficient is set at a preset threshold interval, determining that the target audio signal is all noise. According to the method and apparatus of the invention, according to the noise detection coefficient determined by the frequency domain average value of the plurality of subbands of each of the plurality of frame signals, the target audio signal is determined to be all noise when the noise detection coefficient is within the preset coefficient threshold interval. The noise detection method and apparatus of the invention do not need operation intervention by working personnel so as to prevent occurrence of missed detection and accordingly raise the noise detection efficiency.

The invention belongs to the field of semiconductors, and especially relates to a method for screening out the abnormal crystal grains through the photoelectric property parameters of the crystal grains. The method achieves the screening of the abnormal crystal grains through the testing of the photoelectric properties of the crystal grains and a method of coordinate conversion of crystal grains, improves the work efficiency of a crystal grain mirror, reduces the detection leakage, reduces the complaint rate of customers, and improves the work efficiency.

The invention provides a chip detection and packaging production system, and relates to the technical field of chip manufacturing. The chip detection and packaging production system comprises a voltage withstand test device, an electrical test device, a chip pin detection device and an integrated device which are sequentially installed on a working platform, wherein the voltage withstand test device is used for carrying out voltage withstand detection on a chip; the electrical test device is used for carrying out electrical detection on the chip; the chip pin detection device is used for detecting the flatness, the intervals and the widths of chip pins; the integrated device is used for printing and packaging the chip; a first discharging conveyer belt of the voltage withstand test devicecommunicates with a feeding mechanism of a first feeding assembly of the electrical test device; a good product transferring mechanism of the electrical test device communicates with a second feedingassembly of the chip pin detection device; and a conveying mechanism of a second defective product collecting assembly of the chip pin detection device communicates with a conveying device of a printing assembly of the integrated device. According to the chip detection and packaging production system, the design is reasonable, the chip can be detected automatically and continuously, the labor investment is reduced, the detection omissions are avoided, and the chip quality is stable.

The invention discloses a target detection method for a three-coordinate active phased array radar. By respectively constructing a fast picture unit and a slow picture unit in different division manners for different distance ranges and respectively setting the corresponding threshold number of points for different picture units, when calculating the amplitude value threshold of a single picture unit in multi-frame accumulation, not only the amplitude value threshold of the single picture unit in the previous frame is considered, but also the number of points occupied by the echo data of the single picture unit within a certain number of frames is comprehensively considered to calculate and adjust the amplitude value threshold of the single picture unit. The method provided by the invention can effectively suppress the clutter and improve the detection capability of the target.

The invention discloses a jig for detecting a short-circuited or open-circuit component on a circuit board. The jig for detecting the short-circuited or open-circuit component on the circuit board comprises a pin plate, a pin protection plate, a roof plate, a press plate, PCB press bars, press bars, guide rods, a front plate and side plates, wherein the side plates which are perpendicularly vertical are arranged on the two sides of the lower plane of the pin plate, the front plate which is perpendicularly vertical is arranged on the front side of the lower plane of the pin plate, the two ends of the front plate are connected to the side plates, the pin protection plate is arranged on the pin plate, the multiple guide rods penetrating through the pin protection plate are arranged on the pin plate, the upper ends of the guide rods are connected with the press plate, the PCB press bars are arranged between the press plate and the pin protection plate, and the roof plate is installed on the upper plane of the press plate through the press bars. Due to the mode, detection efficiency of workers on an assembly line can be improved, detection omission is prevented, whether the short-circuited or open-circuit component is broken or not is completely judged through a detection program, and detection efficiency is greatly improved.

The invention discloses a laser correlation type computer mouse walking maze competition scoring system, and belongs to the field of communication. The system comprises a starting point signal detection device placed at the starting point of the maze, an end point signal detection device placed at the end point of the maze, a signal receiving device for monitoring the starting point signal and theend point signal, and upper computer scoring software for processing the starting point signal and the end point signal. The starting point signal detection device comprises a starting point laser emission module and a starting point illuminance detection module which are oppositely arranged; the end point signal detection device comprises an end point laser emission module and an end point illuminance detection module which are oppositely arranged; a starting point signal and an end point signal are detected by adopting a principle that a computer mouse shields laser beams emitted by a laseremission module to cause illuminance change of an illuminance detection module. Laser beams emitted by the laser emitting module are high in directivity, interference generated by light beam scattering is avoided, and therefore the accuracy of the scoring system is improved. The illuminance sensing module is high in detection speed, and the response speed of the scoring system is increased.

The invention discloses a detection system and a detection method for accurately positioning the leakage direction of a condenser titanium pipe. A detection belt fixing mechanism comprises a clampingplate, the inner side of the clamping plate is provided with a clamping groove for placing a detection belt, and the parts, located at the front side and the rear side of the clamping groove, of the clamping plate are rotatably connected with pressing wheels. The invention relates to the technical field of condensers. According to the detection system and the detection method for accurately positioning the leakage position of a condenser titanium pipe, the detection belt is rolled up to sleeve a pipeline and is fixed by the detection belt fixing mechanism, when the detection belt is pulled topass through the surface of the pipeline, the pipeline can be comprehensively detected, whether there is a leakage position or not is judged, if gas leaks, powder flies out of the surface of the detection belt, the leakage position can be visually seen, marking is convenient, positioning is accurate, the detection belt is fixed conveniently through the detection belt fixing mechanism, and the system can adapt to pipelines with different diameters has no limit on the variety of leaked gas, and is of high universality.

The invention discloses a Web vulnerability detection method and device, and the method comprises the steps: receiving a first instruction input by a user, running a preset script file based on the first instruction, and determining a legal IP in a preset IP file; based on a second instruction in the script file, controlling network connection end scanning software Nmap to run, and determining a uniform resource locator URL of each port which corresponds to the legal IP and provides the Web service; filtering the URL based on a preset URL white list, and generating a URL file based on the filtered URL; based on a third instruction preset in the script file, controlling network vulnerability scanning software AWVS to call the URL file, conducting vulnerability detection on each URL in the URL file, and generating a detection report is generated. The technical problem that in the prior art, the Web vulnerability detection efficiency is low is solved.

The invention discloses an elevator hand-pinch preventing method. The elevator hand-pinch preventing method comprises the following steps that S1, a camera obtains video images; S2, the video images are pretreated to obtain target area images of an elevator door; S3, the target area images are input into a hand-pinch preventing model, and through learning, a predicting result having the hand or having no hand is obtained; and S4, a corresponding action is conducted according to the predicting result. According to the elevator hand-pinch preventing method, by shooting the video images, having the hand or having no hand is predicted on the images on the edge of the elevator door, thus existence of small objects at the edge of the elevator door is judged, and the probability of accidents is lowered.

The invention discloses a vehicle detection and tracking method and device, an apparatus and a medium. The method comprises the following steps: extracting a feature descriptor of an image of a vehicle to be tracked; detecting A target vehicle tracking object in an image of a region to be detected by using a trained vehicle detection model including features of a vehicle normally visible region component and feature of a vehicle easily occluded region component; Extracting feature descriptors of target vehicle tracking object images; performing Local sensitive hash matching and purification of feature descriptors; Determining the number of feature descriptors after purification and judging whether the number is larger than a preset threshold value; If so, the target vehicle tracking object is tracked when the area hue value of the target vehicle tracking object is within a preset hue value range. That is, the present invention utilizes a model including a common visible area and a easily occluded area to perform image detection, detects a vehicle to be tracked through a local sensitive hash matching, realizes vehicle tracking, effectively avoids the problem of vehicle leakage detection due to occlusion, and improves tracking accuracy.

The embodiment of the invention discloses a memorizer as well as a detecting method thereof and a chip. The memorizer comprises a substrate, a laser detection circuit located on the substrate as well as a data circuit area and a data storage area located on the substrate; the laser detection circuit at least comprises a plurality of monitoring diodes, at least one recharge transistor and at least one amplifier unit, the input end of each amplifier unit is electrically connected with the negative electrode of at least one monitoring diode and the output end of each recharge transistor respectively, the positive electrodes of the monitoring diodes are grounded, and the input end of each recharge transistor is electrically connected with a power supply; the data circuit area is provided with a plurality of sensitive circuits, the data storage area is provided with a storage array, each sensitive circuit is arranged adjacent to at least one monitoring diode, and/or the storage array is arranged adjacent to at least one monitoring diode. The memorizer provided by the embodiment of the invention is low in production cost, is capable of effectively improving the accuracy of laser detection and avoiding miss detection.

A lighting device for visual inspection of defects on the outer surface of a steel pipe comprises a lamp shell and a lampshade which are concentrically arranged, the lampshade is located in the lamp shell, connected side plates are arranged between the lamp shell and the lampshade, and the side plates are located on the two opposite sides of the lamp shell and the lampshade; a plurality of circumferentially arranged LED lamp strips are arranged on the inner wall of the lamp shell, and the LED lamp strips are arranged towards the lampshade; the lampshade is made of transparent materials, and a light uniformizing film is attached to the outer surface of the lampshade. A driving controller electrically connected with the LED lamp strips is arranged outside the lamp shell, and the driving controller synchronously controls all the LED lamp strips. Opposite lamp shell brackets are arranged on the outer wall of the lamp shell; compared with the prior art, when the camera obliquely faces the inner side of the barrel lamp, the object space corresponding to the imaging surface of the camera sensor is the inner wall, uniformly emitting light, of the barrel lamp, so that stray light generated by reflection cannot be introduced, and the pixel difference on the plane of the sensor is only caused by different surface shapes and roughness of the surface of a steel pipe; therefore, 360-degree uniform illumination imaging on the surface of the high-reflection steel pipe can be realized.

The embodiment of the invention discloses a memory, a detection method thereof and a chip. The memory comprises a substrate, a laser detection circuit located on the substrate, as well as a data circuit region and a data memory region located on the substrate, wherein the laser detection circuit at least comprises a plurality of monitoring transistors, at least one charging transistor and at least one amplifier unit; an input terminal of the amplifier unit is electrically connected with an output terminal of the at least one monitoring transistor and the output terminal of the charging transistor respectively; the input terminal of the monitoring transistor is grounded; the input terminal of the charging transistor is electrically connected with a power supply; the data circuit region is provided with a plurality of sensitive circuits; the data memory region is provided with a memory array; each of the sensitive circuits is arranged adjacent to the at least one monitoring transistor; and/or the memory array is arranged adjacent to at least one monitoring transistor. The memory provided by the embodiments of the invention is low in production cost, can effectively improve laser detection accuracy, and can avoid detection leakage.