23 results about "Standard line" patented technology

The utility model relates to a paper feeding device, in particular to an adjustable manual stacking and paper feeding device which comprises a stacking and paper feeding table and a platform, the stacking and paper feeding table is arranged in a lifting mode and provided with a supporting area, the platform is provided with a standing face, the platform is arranged in a front-back moving mode, and the standing face is arranged on the platform. A notch is formed in the rear side of the stacking paper feeding table and allows the platform to go in and out, the notch corresponds to a non-supporting area, the supporting area and the non-supporting area jointly form a paper supporting face, and the platform moves with the front edge of the paper supporting face as the standard so as to adjust the overlapping area of the standing face and the paper supporting face in the vertical direction. With the front edge of the paper supporting face as the standard, when the paper specification is increased, the platform moves backwards to exit from the notch, and when the paper specification is decreased, the platform moves forwards to enter the notch, on the premise that the standard line is not changed, the position of the platform is adjusted, an operator can place paper conveniently, the height of the upper surface of a paper pile can be adjusted through lifting of the stacking paper feeding table, and stacking is convenient.

The application discloses a staple fiber bundle line plate double-rolling synchronous conveying control method and system, steps S1: a virtual rolling reference axis is constructed, and standard initial roll diameter, standard line plate thickness parameters and standard line speed are input; step S2: a rotational speed coupling coefficient of the virtual reference axis and the first rolling wheel and the second rolling wheel is defined, and a rotational speed mapping relationship is established; step S3: a pre-calibration stage is entered, and cumulative turn numbers and real-time outer diameter data of the two rolling wheels are collected; step S4: actual effective rolling thicknesses of the two fiber bundle line plates are calculated based on the collected data, the running parameters of the virtual reference axis are corrected, and the initial rotational speed coupling coefficient is iteratively calibrated; and step S5: rolling line speeds of the two rolling wheels are obtained, and when the relative deviations of the two rolling line speeds and the virtual reference axis line speed are all less than a preset threshold value, pre-calibration is completed, and the production line is automatically switched to a normal production stage.

The application provides a cutting line breakage detection method, steps comprising: obtaining the line bow value of the line net in the cutting process and the identification time of the monitor from the emission signal to the reception signal; based on the comparison of the monitoring line bow value and the standard line bow value, whether the line bow of the line net is abnormal can be judged; and based on the difference value of the monitoring identification time and the standard identification time, compared with the preset time threshold value, whether the line net is broken can be judged. The cutting line breakage detection method of the application further improves the breakage detection monitoring precision and detection speed through the line bow value and the identification time, so as to improve the stability of the line net state monitoring.

The utility model discloses a turnout stroke measuring scale which comprises a first measurer, a second measurer, a first support and a second support, the first support and the second support slide relatively, the first measurer is located on the first support, the second measurer comprises a second electronic measuring instrument and a second scale body, and the second electronic measuring instrument is located on the second scale body. The second electronic measuring instrument is located on the second support, the second ruler body is vertically arranged, the side wall of the second ruler body is provided with a standard line, and the lower end of the second ruler body sequentially penetrates through the second electronic measuring instrument and the second support. The device has the effect of improving the working efficiency of track detection.

This invention provides a line loss measurement device and method for an RF test system. The method involves connecting both ends of the entire RF test system's line system to a first standard line connected to two ports of a network divider, measuring and recording the line loss value LossArray_Cable. One end of a second standard line is connected to the network divider, and the other end is connected to the measurement probe of an Agilent power meter. The network divider is controlled to transmit a first signal, and the first signal value is read from the Agilent power meter and denoted as LossArray_PowerMeter. The Agilent power meter's measurement probe is connected to the measurement port of a comprehensive test instrument, and the comprehensive test instrument is controlled to transmit a second signal. The second signal value is read from the power meter and used as LossArray_Base. LossArray_PowerMeter is subtracted from LossArray_Base to obtain LossArray_InterLoss. The line loss value of the entire RF test system is calculated using the formula LossArray_Cable + LossArray_InterLoss, achieving a simple, efficient, and reliable measurement of the line loss value of the RF test system.

This invention discloses a method and system for constructing typical operating conditions of railway locomotive and rolling stock traction systems and components. The method includes: 1) acquiring actual operating data of railway locomotives and rolling stock, forming an original line data table, dividing it into K standard short segments, splicing them together to obtain a standard line, obtaining the corresponding standard line characteristic values, and obtaining the overall line characteristic value based on the standard line characteristic values; 2) dividing the standard short segments into n equal parts according to the cumulative frequency distribution to form n short segment packages, and sequentially extracting short segments from the n short segment packages to form several short segment combinations; 3) calculating the characteristic value of each short segment combination, and performing a non-parametric test with the overall line characteristic value to form a short segment combination to be tested, which is the optimal operating condition; 4) obtaining transient typical operating conditions based on the optimal operating conditions, and obtaining steady-state typical operating conditions. The typical operating conditions of this invention have little difference from actual operating conditions and are suitable for major traction system combination test systems.

The present application discloses a method for determining scattering parameters of transmission lines in a circuit test board and a circuit board, which relates to the field of circuit boards. At least one set of replica lines and one set of standard lines are provided in the circuit test board; each replica line includes: an extension line and a replica transmission line connected through a connection point, the replica transmission line is the same as the transmission line to be tested in the circuit board, and each end of each replica line is connected to a connector; the layout of the standard line is the same as the layout of the extension line in the replica line, and each standard line is composed of two reference lines, the reference line and the extension line in the replica line have the same parameters, and each end of each standard line is connected to a connector; the connector is used to connect to a test device.

The invention provides a line sequence detection method and device, electronic equipment, a storage medium and a computer program, and belongs to the technical field of electric power. The method comprises the following steps: acquiring a to-be-detected image; inputting the to-be-detected image into the target detection model to obtain a target recognition result corresponding to the to-be-detected image; obtaining contour information of each line based on the target identification result; calculating a line sequence based on the contour information of each line; and comparing the line sequence with a standard line sequence to obtain a line sequence detection result. According to the application, while tedious wiring line marking work can be avoided, the identification precision and identification efficiency of the standardization of the wiring states of the meter, the load control terminal and the junction box can be effectively improved, so that the intelligent level of operation and maintenance of the electric power metering equipment is significantly improved.

This disclosure relates to a road longitudinal matching method, apparatus, device, and computer program product. By acquiring the distance feature points and shape feature points included in both high-precision line segments and candidate standard line segments, the average distance similarity and shape similarity between the high-precision line segments and candidate standard line segments can be determined. The average distance similarity comprehensively considers the average distance from the high-precision line segment to the candidate standard line segment, reducing longitudinal offset caused by positional accuracy errors at the beginning and end points of the standard line segment. The shape similarity enables matching based on shape, reducing longitudinal offset caused by shape differences. Therefore, based on the average distance similarity and shape similarity, a standard line segment that matches the high-precision line segment can be determined, reducing longitudinal offset and improving driving safety.

The application aims to provide an abnormality screening method and device for a bolt tightening process. Compared with the prior art, the application acquires a quantitative curve of the bolt tightening process; determines a similarity value of the bolt tightening process and a preset standard tightening process according to the quantitative curve and a preset standard line through a Fréchet distance, wherein the preset standard line is a quantitative curve of a standard bolt tightening process; and determines whether the bolt tightening process is abnormal according to a preset similarity threshold and the similarity value. In this way, a fast abnormality screening method with low cost is realized, and the method is stable in the scene of variable frequency acquisition of bolt tightening data.

The utility model relates to a calibration ruler for calibrating track lining precision of a tamping wagon, which belongs to the field of special tools for railway maintenance machinery, and comprises a ruler body, a positioning piece is arranged at one end of the ruler body, the positioning piece abuts against the inner side surface of a steel rail during measurement, the ruler body is provided with scale marks along the length direction, and the maximum scale position of the scale marks coincides with the position of the positioning piece; the steel string clamping seat is arranged on the ruler body in a sliding manner; by means of the calibration ruler, calibration can be carried out on any railway line, a section of standard line is not needed, the steel string of a tamping wagon is clamped into the steel string clamping base, the positioning piece of the calibration ruler abuts against the inner side face of a steel rail, and the steel string can be calibrated through the locking piece. And the rim of the front tensioning trolley wheel and the rim of the rear tensioning trolley wheel of the tamping wagon are adjusted to abut against the inner side face of the steel rail, the vertical distance to the steel string is measured, then the distance between the track lining detection trolley and the steel string is measured through the calibration ruler, and therefore calibration of the whole tamping wagon is achieved.

The application provides a 3D printing strength enhancement method based on an interlayer alternating variable-width slice strategy, relates to the technical field of 3D printing slice algorithm of FDM technology, and comprises four steps of wall body region identification, odd-even layer line width distribution, path center coordinate calculation and extrusion amount compensation: firstly, the vertical wall body region is identified through layering processing, contour comparison and threshold determination; then, a standard line width, a wide line width and a narrow line width are set, the odd layers adopt the uniform standard line width, and the even layers form an alternating variable-width structure by adjusting the line widths of the outermost and innermost walls; the path center coordinates are calculated according to the line width difference, so that the even layer paths are transversely staggered relative to the odd layer paths; and the E-axis feeding amount of the extruder is adjusted based on the volume conservation principle. The application has the beneficial effects that: the mechanical interlocking structure is formed by interlayer staggering and embedding, the interlayer V-shaped gap of traditional printing is filled, the plane strength of the XY axis, the strength of the Z axis and the interlayer bonding force of the printed part are significantly improved, the hardware equipment does not need to be changed, and the implementation cost is low.

The utility model discloses a steel rail curve versine and abrasion integrated inspection tool, which comprises a measuring main body and a positioning seat integrally formed with the measuring main body, a sliding block is arranged on the measuring main body, a positioning hook is arranged at the bottom of the sliding block, and an auxiliary plate is arranged on one side, close to a fixed seat, of the top of the sliding block; the measuring main body is provided with a vertical grinding standard line, and the distance between the vertical grinding standard line and the rail head surface of a standard 60kg / m steel rail is 20mm; when the front end of the positioning hook is in contact with a rail head acting edge of a standard 60kg / m steel rail, a side grinding scale mark positioned on the measuring main body is arranged on the end surface, far away from the positioning seat, of the sliding block; the distance from the top of the auxiliary plate to the top surface of the rail head of the standard 60kg / m steel rail is greater than 12mm; the distance from the inner side of the positioning seat to the end face of the side, away from the positioning seat, of the measuring body is smaller than 153 mm. The inspection tool can measure the vertical abrasion, the side abrasion and the curve positive loss value of the steel rail at the same time, and has the advantages of being high in measurement efficiency, high in measurement precision, convenient to carry and not prone to deformation.

The utility model relates to the field of auxiliary tools for heat preservation plate processing, in particular to a scribing device for heat preservation plate processing, which comprises a movable supporting assembly, a fixed support, a transverse supporting part, a transverse driving component, a movable bearing frame and a contact scribing part, the movable supporting assembly is mounted on the external lifting rack; a fixing support is installed on the lower side of the movable supporting assembly, and the transverse supporting part is arranged on the fixing support and connected with the fixing support through a bolt. According to the line drawing device, a manual line drawing mode can be replaced, line drawing operation is carried out on the heat preservation plate, the labor intensity of line drawing operators is reduced, meanwhile, the standard line drawing position can be effectively guaranteed, and the follow-up machining, installing and using requirements for the heat preservation plate are met.

Electrical appliance module (1) comprising the following: a main line module (2) comprising a main line guide body (21) attached to a vehicle (V) and guided along a width-extending element (20) in a vehicle width direction (Y) of the vehicle (V), a branch section (22) inserted into the main line guide body (21), and a branch section retaining element (24) which extends along the laterally extending element (20) and retains the branch section (22); and a sub-module (3) which is connected to the main line module (2) by the branch section (22) and is subject to power supply distribution by the main line guide body (21), characterized by the fact that the main line module (2) contains a main line receiving space section (25) which is partitioned by the element (20) extending in the width direction and the branch section retaining element (24) and contains the main line guide body (21) and the branch section (22), the main line guide body (21) contained in the main line receiving space section (25) includes a standard main line guide body (21A) which is used as a standard circuit and includes a non-standard main line guide body (21B) which is used as a non-standard circuit, the standard main line guide body (21A) and the non-standard main line guide body (21B) are divided into zones and are guided in the main line receiving space section (25) by a standard line holding unit (26A) and a non-standard line holding unit (26B), the standard line holding unit (26A) is provided in the main line receiving space section (25) and holds the standard main line guide body (21A), the non-standard line holding unit (26B) is provided in the main line receiving space section (25) and holds the non-standard main line guide body (21B).

The utility model relates to a network connection interrupter. The network connection interrupter is mainly composed of a data line, a key piece, a male plug, a female plug, a locking piece and other key assemblies. Wherein the data line is used for transmitting network signals, and the key piece is used for unlocking and removing the network connection interrupter. The male plug is designed to be inserted and locked on a network interface of network equipment to ensure stable connection; and the female head plug adopts a non-standard line sequence design and is not matched with a standard network cable line sequence, so that the network security is enhanced, and the access of unauthorized equipment is prevented. The arrangement of the locking piece further improves the safety of the equipment, and ensures that the male plug is not easy to pull out after being inserted. According to the invention, unauthorized equipment is effectively prevented from accessing the network, and the network security protection level is improved; the locking piece and the key piece are matched for use, so that the flexibility and controllability of network management are enhanced, and a network administrator can conveniently control equipment access.

The present invention discloses a method for evaluating the operation service of bus lines, including: obtaining index data of different levels of lines; performing quantitative analysis on the index data to obtain quantitative division data of different levels of lines; calculating the index weights by the CRITIC method; obtaining standard line division data based on the quantitative division data and the index data; and comprehensively evaluating the index weights and the standard line division data by the TOPSIS method to obtain line rankings and grade division data. Through the above technical solution, the present invention can effectively, accurately and conveniently evaluate bus lines.

The utility model discloses a rail surface standard line measuring and marking auxiliary tool, which relates to the technical field of rail surface standard line measuring and marking auxiliary equipment, and adopts the technical scheme that the rail surface standard line measuring and marking auxiliary tool comprises a shell, a side plate, a laser range finder, a horizontal ruler, a horizontal bead, a red line seal and a fixing mechanism, the red line seal comprises a pressing part and a seal part, through notches are formed in the two opposite side walls of the shell, the red line seal penetrates through the notches, and spring mechanisms are arranged in the red line seal and an inner cavity of the shell. The beneficial effects of the utility model are that the laser range finder is used for measuring the side surface limit and positioning the red line, a traditional measuring method of a T-square and a horizontal ruler is replaced, personnel and machines do not invade the driving limit in the measuring process, and the driving safety is ensured; and meanwhile, the measurement precision is high, and the error is controlled within + / -10mm.

The application discloses a photolithography process window confirmation method and device, equipment and a storage medium, applied to the photolithography technical field, applied to an APC system, comprising: obtaining measurement data based on the APC system; obtaining the overstock condition of the current batch, and screening the measurement data according to the overstock condition of the current batch to obtain first screening data; comparing the line width data in the first screening data with standard line width data, and screening the first screening data according to the comparison result to obtain second screening data; drawing a Poisson curve according to the second screening data; and updating the overstock condition of the next batch according to the Poisson curve based on the automatic feedback mechanism of the APC system. Based on the automatic feedback compensation mechanism of the advanced process control system, the photolithography process window of the next batch is automatically generated according to the photolithography data of the current batch, so as to reduce the error caused by the artificial judgment of engineers and improve the production efficiency.

The present application provides a control method, system, device and medium for a golden yarn weaving process, which is applied to a golden yarn weaving machine. The control method includes the following steps: the shortest time taken for the yarns of multiple coils in each device to be exhausted is used as the standard line-changing time of the device; the period between the moment when each device first collects the weight change of the coil and the moment when the device starts weaving is recorded as the line-up adjustment time; the standard line-changing time and the line-up adjustment time are updated in real time according to the progress of the user putting the coil on line, and the real-time pulling speed of the device is adjusted, wherein the real-time pulling speed is negatively correlated with the standard line-changing time and the line-up adjustment time. The user's line-up time and the weaving time of the device are reasonably coordinated, so that the pulling speed of the bunching wheel is slowed down as much as possible during the weaving process, reducing the problem of golden yarn breaking or deformation due to excessive tension, improving the yield rate, and maintaining production efficiency.

A method and apparatus is proposed for performing the ONU activation process in a PON having a standard line rate of 50G or higher. The method and apparatus are based upon having the OLT instruct any activating ONUs to transmit at a line rate that is less than 50G, which allows for an OLT receiver without any particular equalization configuration to accurately recover the upstream burst-mode transmissions from the activating ONUs. Once the activation process is completed, the OLT may instruct the new ONUs to reset their transmitters to operate at the higher line rate of the PON. Alternatively, at the end of the activation process, the new ONUs may be configured to automatically reset their transmitters to higher line rate.

The utility model relates to the field of auxiliary line drawing tools for tobacco frame sheet materials, in particular to an auxiliary line drawing tool for tobacco frame sheet material processing, which comprises a bearing frame, a reciprocating motion mechanism, a supporting guide rail, a synchronous adjusting component, a guide rod, a first line drawing part and a second line drawing part, the bearing frame is mounted on an external rack; a supporting guide rail and a reciprocating motion mechanism are mounted on the bearing frame, and a moving side in the reciprocating motion mechanism is mounted on the supporting guide rail and is in sliding contact with the supporting guide rail; a synchronous adjusting assembly and a guide rod are mounted on the reciprocating motion mechanism; the auxiliary line drawing tool for the tobacco frame plate can replace manual work to conduct standard line drawing operation on the tobacco frame plate, it can be guaranteed that the standard line drawing position is uniform, the labor intensity of workers is effectively reduced, and the line drawing operation efficiency is guaranteed.

An auto-line-division system for handwriting manuscript for line-division of a handwriting manuscript from an electronic handwriting input panel is provided. Generally, in writing, various conditions will generate, such too large or too small words, isolation words, reversal strokes, etc. The system could process these problems in writing based on the setting of a standard line height and a standard line width. The edges and features in division of lines are detected and some values are calculated for correction of the line division so that efficiency of line division is promoted. Another, problems induced in the first line division is taken into consideration, and the problem of multiple lines due to mistake line division can be further correct to one single line. These problems could is corrected so as to promote the accuracy in line division.