21 results about "Line pair" patented technology

The utility model relates to the technical field of communication cable especially is related to an isolated cross skeleton of anti -bunching line pair overturning, its including a plurality of isolation sheets, a plurality of one side side of isolation sheet meets at the same place, and a plurality of isolation sheets meet and form the skeleton, and the isolation sheet between two adjacent isolation sheets is the pay -off area, the other side of isolation sheet is provided with the baffle, and the surface of the side of baffle away from pay -off area is provided with the tab. The utility model has the effect that the relative rotation and overturning between cross skeleton and sleeve pipe are not easy to happen.

The invention provides a friend on-line pairing processing method and device, and the method comprises the steps: obtaining the historical attribute information of a user side under the condition of detecting that the user side triggers an on-line pairing request; wherein the historical attribute information is used for representing friend-making features associated with the user side; determining an online user list corresponding to the online pairing request according to the historical attribute information; and sending the online user list to a user side, and sending an interaction application to a target online user when it is detected that the target online user is selected from the online user list through the user side. According to the friend on-line pairing processing method provided by the invention, the efficiency and the accuracy of friend on-line pairing can be effectively improved, so that the use experience of a user is improved.

The application discloses a kind of analytical force test method, equipment and computer readable storage medium, the method includes collecting the line pair image obtained by the camera module to be measured to test mark plate shooting, wherein test mark plate contains at least one mark plate unit, at least one line pair is provided on each mark plate unit;Line pair image is preprocessed, to locate and extract the imaging feature area of all corresponding mark plate units in line pair image;Each line pair in imaging feature area is independently polynomial fitted respectively, and the brightness-pixel position fitting function corresponding to each line pair is obtained;According to the brightness-pixel position fitting function corresponding to each line pair, the brightness peak value and brightness trough value of line pair are extracted, and the analytical force numerical value corresponding to each line pair is calculated.The analytical force test method of the application can realize multi-direction analytical force test and accurate evaluation of detail clarity, which helps to improve line pair detection precision.

The utility model discloses a high-flame-retardant double-layer moisture-proof shielding type axle counting cable for rail transit, which comprises an axle counting line group consisting of a main line pair and a standby line pair, and a wrapping tape, an inner shielding layer, an inner oxygen-isolating lining layer, an outer shielding layer, an outer oxygen-isolating lining layer, an armored reinforcing layer and a sheath which are sequentially arranged outside the axle counting line group from inside to outside, and a plurality of drain wires are filled between the wrapping tape and the inner shielding layer, so that the cable has the characteristics of better flame-retardant, moisture-proof and shielding performance and easiness in maintenance, and fire risk and moisture influence can be greatly reduced, thereby ensuring stable transmission of rail transit signals (providing more reliable and stable signal transmission guarantee for a railway axle counting system), and improving the reliability of the railway axle counting system. And the safety and the reliability of railway operation are improved, and the device is particularly suitable for complex and severe railway operation environments.

The utility model provides a spatial resolution test board of an electroluminescent defect detector, the test board is provided with a positioning area, an inclination angle detection area, a rectangular line pair area and a wedge-shaped line pair area, the positioning area is provided with a positioning circle, the inclination angle detection area is vertically provided with an inclination angle detection strip, and the wedge-shaped line pair area is provided with a wedge-shaped line pair area. The positioning circle is located at the upper left position of the inclination angle detection strip. Rectangular line pair groups in different directions are arranged in the rectangular line pair area, a plurality of rectangular line pair groups corresponding to different resolutions are arranged in the same direction, the rectangular line pair groups in the same direction are correspondingly provided with a wedge-shaped line pair group, and the wedge-shaped line pair group is located in the wedge-shaped line pair area. According to the utility model, the measurement precision can be improved, and the measurement of the spatial resolution of the electroluminescent defect detector in different directions can be realized.

The invention discloses a filter based on a coupling line and an electronic device with the filter. The filter comprises an input port, an output port, a first coupling line pair and a second coupling line pair, wherein the first coupling line pair and the second coupling line pair are connected between the input port and the output port; one coupling line in the first coupling line pair is connected with the input port, and one coupling line in the second coupling line pair is connected with the output port; and at least one coupling line in the first coupling line pair is connected with at least one coupling line in the second coupling line pair. According to the filter based on the coupling line, the performance of high return loss and low insertion loss in a passband can be achieved, the performance of high out-of-band rejection outside the passband can be achieved, interference signals are effectively suppressed, and needed signals can be transmitted more efficiently.

The application provides a minimum phase channel skew correction method and device, electronic equipment and storage medium, and relates to the technical field of communication.The application first acquires training result data corresponding to each line pair of a plurality of line pairs of a target communication system in a training mode, wherein the training result data includes a tap coefficient sequence of a DFE and a received symbol sequence; the plurality of line pairs include a reference line pair and a plurality of to-be-corrected line pairs; then, based on the tap coefficient sequence corresponding to each line pair and a preset cross-correlation operation algorithm, timing offset data is determined; further, based on the timing offset data and the received symbol sequence corresponding to each line pair, the receiving order of each line pair is determined, so as to correct the skew of the target communication system in a data transmission mode based on the timing offset data and the receiving order of each line pair. In this way, skew correction with low complexity and high reliability is realized, the skew correction can be quickly completed in the starting stage, and the accuracy of data transmission is ensured.

The utility model belongs to the technical field of connectors, and discloses a wire-to-board connection assembly. The wire-to-board connecting assembly comprises a wire end connector and a board end connector, the wire end connector comprises a wire end connecting seat and a first connecting piece which are connected with each other, the wire end connecting seat is provided with a first avoiding space, the board end connector comprises a board end connecting seat and a second connecting piece which are connected with each other, and the first connecting piece and the second connecting piece are electrically connected. The plate end connecting base is provided with a second avoiding space, and at least part of the first avoiding space and the second avoiding space are overlapped. The wire end connecting seat of the wire-to-board connecting assembly is provided with the first avoiding space, the board end connecting seat is provided with the second avoiding space, and the first avoiding space and the second avoiding space have the overlapping area, so that the electrical elements arranged on the circuit board can be avoided, the space utilization rate of the circuit board can be improved, and the circuit board can be protected from being damaged. The miniaturization design of the product can be improved, the use amount of raw materials can be reduced, and the cost can be reduced.

The application discloses a kind of blade cooling hole matrixing geometric division methods, including reading finite element geometric model data, utilize geometric model identification function to be automatically divided into several block by geometric model, and obtain "line pair", "face" and "face pair" data, utilize "face pair" data to track, obtain all "line group" data of model, then obtain the corresponding "line group" group in region, the division region of cooling hole is matrixed by setting two parameters M, N, finally generate new geometric model data, the present application makes up the defect that geometric model cannot be automatically divided cooling hole region in finite element pre-processing software, algorithm efficiency is high, reduces a large amount of manual operation, greatly improves overall work efficiency.

The invention belongs to the technical field of image data processing, and particularly relates to an intelligent electric energy metering box state identification method and system, and the method comprises the steps: obtaining an image of an intelligent electric energy metering box, and positioning the image to a candidate region of a circuit breaker unit; extracting a line segment set in the candidate region; for the line segment pairs, line pair scores are obtained based on the gradient amplitude of the scanning line endpoints and the internal average gradient amplitude; in response to the condition that the line pair score of the line segment pair is higher than a threshold value, obtaining a structure contrast degree based on comparison of an internal region and an external region of the line segment pair under multi-scale Laplacian-Gaussian response; obtaining a comprehensive pairing score based on the line pair score and the structure contrast degree; and selecting the line segment pair with the highest comprehensive pairing score, and judging the state of the circuit breaker based on the central axis direction. According to the method, the problem that a rigid visual model is sensitive to perspective deformation and is easily interfered by a complex background is solved, and robust and accurate identification of the state of the circuit breaker is realized.

The invention provides a transmission method and system in an Ethernet transmission line connection abnormal state, and belongs to the technical field of Ethernet transmission, and the method comprises the steps: carrying out the real-time detection of the states of a plurality of line pairs between a home terminal physical layer and an opposite terminal physical layer, and obtaining a line pair state monitoring result, which comprises line pair state information and line pair out-of-order mapping information; performing line pair mapping configuration according to the line pair state monitoring result so as to execute an automatic negotiation process on the line pair after the line pair mapping configuration; and carrying out data path cross switching on the plurality of line pairs according to the line pair out-of-order mapping information, carrying out rate clock adaptation and parallel-serial conversion or serial-parallel conversion on the line pairs after cross switching, and then realizing data transmission on the line pairs. The method has the beneficial effects that stable link establishment transmission is still realized when a single pair or two pairs of twisted pairs are abnormal, the method is compatible with a broken line or all line pair disorder scene under a normal condition, the stability, the reliability and the adaptability of a system are enhanced, and a solid guarantee is provided for high-speed and large-bandwidth data transmission.

The present invention discloses a connection method and device for connecting cross metals in a simulated layout, relating to the technical field of layout design. The method comprises traversing all metal line names to obtain a metal line name set, classifying the obtained metal line name set to obtain an initial vertical line set and an initial horizontal line set, searching the metal lines in the initial vertical line set and the initial horizontal line set according to target names to obtain metal line pairs, and obtaining a vertical line set and a horizontal line set based on all metal line pairs. The vertical line set and the horizontal line set are pre-sorted, and then a pre-set algorithm is used to determine the cross-connection points of the metal lines in the target vertical line set and the target horizontal line set. By obtaining the metal line name set and ensuring that its names are non-repeated, repeated processing of the same metal line is avoided. Then, by searching the metal lines in the initial line set according to the target name, the target vertical line set and the target horizontal line set are traversed and cross-connection points are determined, thereby ensuring the comprehensiveness and accuracy of the results and improving the efficiency of layout design.

The utility model discloses an electrical circuit alignment auxiliary device, which relates to the technical field of electrical equipment and comprises a signal receiving module, a signal transmitting module is arranged on one side of the signal receiving module, and the outer wall of the signal receiving module and the outer wall of the signal transmitting module are both fixedly connected with a circuit connecting module. The signal transmitting module and the signal receiving module are respectively connected with two ends of a line, different frequencies are selected for each group of lines, the signal receiving module and the signal transmitting module are respectively connected with the signal transmitting module and the signal receiving module, the signal transmitting module and the signal receiving module are respectively connected with the line connecting module, and the line connecting module is connected with the signal receiving module and the signal transmitting module. According to the utility model, the connection relation between the electric wire and the electric wire corresponding to the signal emission module end can be rapidly determined, so that the device can rapidly and accurately find the corresponding relation of the electric wire, the alignment time is greatly shortened, multiple groups of lines can be aligned at the same time through setting different signal frequencies, and the working efficiency is further improved.

The invention provides a high-speed parallel cable with buffering performance. The high-speed parallel cable comprises an inner sheath, a plurality of parallel line pairs and a supporting assembly. The inner sheath is provided with an accommodating cavity; a plurality of parallel line pairs are annularly arranged in the accommodating cavity; the supporting assembly is located in the containing cavity and comprises a center piece, a plurality of swinging pieces, a first elastic piece and a second elastic piece, the multiple swinging pieces are arranged around the periphery of the center piece, and the ends, close to the center piece, of the swinging pieces are connected to the center piece in a swinging mode; in the swinging direction of the swinging pieces, a first containing space for containing the parallel line pair is formed between the first side of any swinging piece and the adjacent swinging piece, and the first elastic piece enables the swinging pieces to rotate towards one side of the clamped parallel line pair; one end of the parallel line pair abuts against the inner sheath, the other end of the parallel line pair and the center piece are arranged in a spaced mode to form a movable space, the movable space allows the parallel line pair to move towards one side of the center piece, and the second elastic piece is located in the movable space and clamped between the parallel line pair and the center piece.

The invention provides an MTF detection method and system based on image vision, and belongs to the technical field of computer vision and target detection. According to the method, image data of a projection drawing card is collected through an industrial camera, after bright block segmentation, ROI extraction and area positioning and subdivision, definition index calculation is carried out on line pairs in different directions to obtain definition indexes of different bright blocks, and finally an accurate fine adjustment basis is provided for a focusing mechanism. According to the method, the problems of real-time performance and efficiency of an existing image definition detection method in a focusing system are solved, the calculation amount of total image detection is reduced by optimizing the region extraction and calculation process, the real-time performance and accuracy of target detection are remarkably improved, and the method can be widely applied to automatic driving, industrial detection and other scenes needing high-precision focusing.

The utility model relates to the technical field of electronic cables, and particularly discloses an HDMI (High Definition Multimedia Interface) connecting line convenient for finding a joint, which comprises a line body and an optical conduction line, the wire body comprises a connecting wire and two joints respectively connected with two ends of the connecting wire, and fixing holes are formed in the surfaces of the two joints; the light conduction wire can conduct light rays emitted from one end of the light conduction wire to the other end of the light conduction wire, the light conduction wire is arranged in the wire body, and the two ends of the light conduction wire are fixed in the fixing holes of the two connectors respectively. According to the utility model, the connector paired with the same HDMI connecting line can be found quickly, and the operation efficiency is improved.

The present application relates to a method, apparatus, device and storage medium for identifying lane lines in a general layout plan. Among them, the method includes: classifying all the lines in the general layout plan according to color and layer, and dividing the lines belonging to the same layer and having the same color into the same line set; for each of the line sets, extracting line pairs that meet the lane line characteristics; screening out suspected lane lines from the line pairs that meet the lane line characteristics in each of the line sets; verifying each of the suspected lane lines, and taking the suspected lane lines that pass the verification as the target lane lines in the general layout plan. The present application is used to solve the technical problem that the accuracy of lane line identification in the prior art is generally relatively low.

The application discloses a kind of test pattern generation method and device, wherein the method comprises: obtaining the line width corresponding to multiple line pairs;Wherein, line pair number is the number of line pairs needed to be determined in different positions of the original test pattern;According to each line width, generate the original test pattern containing sub-line pair;Each line pair in the original test pattern is composed of multiple sub-line pairs;Anti-distortion is carried out on the original test pattern, and the target test pattern is obtained.The method of the application improves the accuracy of anti-distortion to generate the target test pattern, and ensures that the target test pattern can be used for accurate test of the resolving power of camera module.

The application discloses a target, an angular resolution detection method, a device, equipment and a detection system. The target comprises a substrate, a surface of the substrate is provided with an angular resolution test pattern comprising a mark pattern and a plurality of standard line pair groups, each standard line pair group comprises at least one standard line pair in an arrangement direction, and the center of the mark pattern corresponds to a target detection position of the camera device when the target and the camera device are centered and adjusted. In this way, when the angular resolution is detected, the pixel position of the target detection position in the image can be known by identifying the mark pattern in the target image, so that the line pair image containing only each standard line pair can be accurately extracted based on the pixel position after each standard line pair is moved to the target detection position, and the angular resolution at the target detection position can be determined based on the definition of each line pair image, which is beneficial to realize automatic detection and improve the efficiency and accuracy of the angular resolution detection.

The invention discloses a transformer substation cable hunting and aligning method and system, in the aspect of hunting, through scientific determination of test signal parameters and accurate judgment of voltage feedback values, suspected to-be-cleared cables can be quickly found out, and the troubleshooting efficiency is greatly improved. And in the aspect of alignment, signal injection and identification are carried out by utilizing the alignment interface, and a matching result is fed back in real time through the indicator light and the display screen, so that a worker can intuitively know the connection condition of the cable, and errors and time cost of manual judgment are reduced. Besides, a perfect verification mechanism is provided, multi-dimensional verification including real-time live-line state and current type analysis and detailed electrical parameter comparison during secondary verification is carried out on a suspected cable to be cleared, accuracy and safety of clearing operation are ensured, and the situation that a normal cable is cleared by mistake is avoided.

The invention discloses a lens imaging quality detection system and a detection method thereof, the detection system comprises a target, an image acquisition unit, an image analysis unit and a display unit, the target comprises a mobile platform, a light source and an industrial resolution plate, the industrial resolution plate comprises at least two types of line pair groups, and the line pair groups of the industrial resolution plate are determined according to a to-be-detected lens; wherein the mobile platform is used for adjusting the position of the industrial resolution ratio plate, so that the plane of the industrial resolution ratio plate is parallel to a to-be-tested lens, and the center of the industrial resolution ratio plate is overlapped with the center of the to-be-tested lens; the image acquisition unit is used for acquiring an image of the industrial resolution plate after passing through the to-be-detected lens; the image analysis unit is used for determining the definition according to the image and determining the imaging quality of the to-be-detected lens according to the definition; and the display unit is used for displaying the definition curve and the imaging quality of the to-be-measured lens. The embodiment of the invention can quickly detect the imaging quality of the to-be-detected lens, and can be widely applied to the technical field of detection.