32results about How to "Reduce compensation costs" patented technology

The present invention discloses a harmonic decomposition-based on-machine pitch error compensation method for large gear hobbing, and belongs to the technical field of gear mechining error compensation for a numerical control gear hobbing machine. First, an on-machine measurement system of the numerical control gear hobbing machine is used to perform on-machine measurement of a pitch accumulated error to a large gear containing an allowance for machining to obtain pitch accumulated error curve of each tooth; then an amplitude spectrum and a phase spectrum of the pitch accumulated error curve are calculated through discrete Fourier transform; error compensation is calculated through the obtained amplitude spectrum and the phase spectrum; and finally the compensation is input into the numerical control system in the form of a work program or a compensation signal; and the instantaneous transmission ratio between a hobbing cutter and the workpiece is adjusted through engagement relationship between the hobbing cutter and the workpiece so as to realize on-machine compensation of the gear pitch error.

A driving behavior evaluation system, including a vehicle-mounted intelligent terminal, a cloud server, a mobile client, and a management background; the vehicle-mounted intelligent terminal is used to collect vehicle data and process it, and transmit it to the cloud server; the cloud server is installed with driving risk The scoring model periodically calculates and scores the driving data; users check the driving behavior evaluation in their account through the mobile client; the insurance company checks the corresponding user's driving behavior evaluation and data details through the management background. This application can intuitively detect and evaluate the key factors of driving safety, instead of using the indicators used in traditional insurance policies to bring about the reorganization of the rules of risk understanding, and reduce the insurance company's compensation costs.

The invention provides an exposure pattern compensation method, an exposure pattern compensationdevice and exposure equipment, and relates to the field of display panel manufacturing. The method, thedevice and the equipment are used for solving the problem of high cost during the TP deign value and practical value difference reduction of the color film base plate exposure pattern in a mask platereplacing mode in the prior art. The compensation method comprises the following steps of compensating the original design coordinate of a work table relative to a mask plate according to at least onefirst measurement dimension, corresponding second measurement dimension, the corresponding design dimension and the threshold value work coefficient, so that the compensation design coordinate of thework table relative to the mask plate can be obtained; controlling the movement of the work table relative to the mask plate according to the compensation design coordinate. The first measuring dimension is the exposure pattern dimension measured after the formation of the exposure pattern; the second measurement dimension is the dimension of the exposure pattern measured after the formation of other patterns on the substrate base plate; the design dimension is the design dimension of the exposure pattern.

A beveled-end steel railroad. The use of small-acute-angle oblique-gap connection design and vertical gap reservation design can solve both the problem of impact between wheels and rails and the problem of thermal stress between steel rails. The design containing both beveled ends and flat ends that are complementary to each other can further greatly reduce railroad construction and reformation costs. The beveled-end steel railroad has a simple structure, is secure, reliable, and durable, can provide a fast, stable, and non-noisy driving effect, can implement highly-efficient and energy-saving operation, is easy to construct and reform, can be easily repaired and maintained, has a significant advantage in costs, and can implement both good performance and good profitability.

The invention aims at providing a comprehensive compensation device configuration method based on business district load group external characteristics. The method comprises the specific steps of S1, obtaining an active power average value and a reactive power average value corresponding to various preset time periods according to a daily load curve of a business district; S2, generating a static load model according to the active power average value and the reactive power average value; and S3, obtaining the reactive power compensation capacity of various preset time periods according to the static load model.

The invention discloses a non-corrosive electricity conduction and resistance reduction material and a maintenance-free grounding device comprising the non-corrosive electricity conduction and resistance reduction material. The non-corrosive electricity conduction and resistance reduction material is mainly composed of raw material asphalt, graphite or / and calcined coke and cement. The maintenance-free grounding device comprising the non-corrosive electricity conduction and resistance reduction material comprises 4-8 grounding electrodes which are horizontally arranged or vertically buried under the ground. The grounding electrodes are mutually connected through metal grounding down leads and horizontal metal grounding bodies to form a metal grounding looped network. Each grounding electrode comprises a metal grounding body and a non-corrosive electricity conduction and resistance reduction material layer, wherein the thickness of the non-corrosive electricity conduction and resistance reduction material layer is 30-45 millimeters, and the use amount of the non-corrosive electricity conduction and resistance reduction material wrapped around the outer surface of every one-meter long portion of the metal grounding body is 6-8 kilograms. The metal grounding down leads, the horizontal metal grounding bodies and the metal grounding bodies are connected in a welded mode. By means of the technical scheme of the non-corrosive electricity conduction and resistance reduction material and the maintenance-free grounding device comprising the non-corrosive electricity conduction and resistance reduction material, the corrosion problem of an existing grounding device can be solved effectively.

The invention discloses a harmonic suppression method for a grid-connected photovoltaic inverter. The harmonic suppression method comprises the steps of performing evaluation on power grid impedance to obtain a power grid impedance estimation value; detecting the voltage of a power grid, and separating out a grid side harmonic voltage component from the voltage of the power grid; obtaining a grid side harmonic current estimation value according to the ratio of the grid side harmonic voltage component to the power grid impedance estimation value; taking a superposition value of the grid side harmonic current estimation value and an inverter side harmonic current as a current control instruction value; performing repeated control on the difference value between the current control instruction value and the inverter side output current, and overlaying with the voltage of the power grid to obtain a modulation wave signal; and performing compensation on the harmonic current in the power grid through closed loop control according to the modulation signal. The harmonic suppression method provided by the embodiment, without requiring a current transformer and an active filter in the power grid system, has good harmonic compensation effect and low compensation cost.

The invention discloses a calculation and influence evaluation method of a geometric error contribution value of a motion axis of a five-axis machine tool. The method comprises steps of S1, setting astructural parameter q of each motion axis according to a five-axis machine tool structure; S2, acquiring geometric error spins of three translation axes and three rotary axes; S3, calculating and obtaining a geometric error component of each motion axis in a cutter coordinate system; S4, building a motion axis error matrix in a cutter coordinate system, and obtaining a geometric error contribution value of each motion axis; S5, adding geometric error contribution values of all motion axes of the five-axis machine tool so as to obtain a comprehensive cutter position error and a cuter gesture error of the five-axis machine tool; S6, evaluating influence of errors of the motion axes on the five-axis machine tool in all directions, and selecting a motion axis with high influence in each direction of the five-axis machine tool; and S7, calculating a position error influence coefficient and a gesture error influence coefficient of the motion axis, evaluating influence of the motion axes onprocessing accuracy of the five-axis machine tool, and selecting a key motion axis of the five-axis machine tool.

The present application provides a nonlinear compensation method and an ROF system, the method comprising: the RRU acquires the first input training signal; the RRU inputs the first input training signal into the feedback link; the DPD processing unit acquires the output from the feedback link The first output training signal; the DPD processing unit determines the nonlinear characteristics of the feedback link according to the first input training signal and the first output training signal; the DPD processing unit performs non-linear characteristics on the feedback link according to the nonlinear characteristics of the feedback link linear compensation. The non-linear compensation method provided in the embodiment of the present application can obtain the non-linear characteristics of the feedback link in the ROF wireless transmitter in advance, and pre-compensate the non-linear characteristics of the feedback link. After that, the real nonlinear characteristic of the downlink can be obtained, so that the real nonlinear characteristic of the downlink can be pre-compensated in advance, and the linearization of the ROF system can be realized, which can improve the system performance.

A polarized film dispersion compensation method is used in high speed long distance DWDM fiber communication system with the transmitting rate over 10Gb / S characterizing in applying a high speed depolarizing device to depolarize modulation light signal to natural light in time domain, then the light signal enters into the long distance transmission fiber to be divided into two components with equal energy but having difference group delay along the two cross-polarized main shafts, finally, a polarization analyzer is added to remove a component along the cross-polarize shafts before the light signal enters into the receiver. One set of device is used to compensate PMD of multiple channels.

The invention provides an intelligent recyclable express package box which comprises a box body, a safety air bag, sealing rubber strips, a fast lock, a box cover, an RFID (radio frequency identification device) chip and two-dimensional codes, the safety air bag is fixedly mounted in the box body and completely covers the inner surface of the box body, the long edge of one side of the box cover is fixedly mounted at an opening of the box body through hinges, the sealing rubber strips are fixedly mounted at the opening of the box body and an opening of the box cover respectively, a fixed end of the fast lock is mounted on the box cover, a lock catching end is fixedly mounted on the box body, and the RFID chip is fixedly mounted at the top of the box cover. The express package box has excellent mechanical property and has the advantages that the express package box is shockproof, waterproof, moisture-proof and resistant to extrusion and can be stacked and machined again in a melted manner after damage, and the like.

The present invention discloses a harmonic decomposition-based on-machine pitch error compensation method for large gear hobbing, and belongs to the technical field of gear mechining error compensation for a numerical control gear hobbing machine. First, an on-machine measurement system of the numerical control gear hobbing machine is used to perform on-machine measurement of a pitch accumulated error to a large gear containing an allowance for machining to obtain pitch accumulated error curve of each tooth; then an amplitude spectrum and a phase spectrum of the pitch accumulated error curve are calculated through discrete Fourier transform; error compensation is calculated through the obtained amplitude spectrum and the phase spectrum; and finally the compensation is input into the numerical control system in the form of a work program or a compensation signal; and the instantaneous transmission ratio between a hobbing cutter and the workpiece is adjusted through engagement relationship between the hobbing cutter and the workpiece so as to realize on-machine compensation of the gear pitch error.

The present disclosure relates to a method, device, device and storage medium for determining the authenticity of a complaint message. The method described herein includes: if a complaint message is received from a passenger for a target trip, obtaining the passenger's complaint tag and event information related to an event that occurred during the target trip, the complaint tag characterizing the passenger's historical complaint behavior; and if It is determined that the event information cannot indicate the authenticity of the complaint message, and the authenticity of the complaint message is determined based on the complaint label. In the embodiment of the present disclosure, by using the passenger's complaint tag and event information related to the target itinerary to determine the authenticity of the passenger's complaint message, the accuracy and speed of determining the authenticity of the complaint message can be improved.

The invention belongs to the technical field of communications, and relates to a loop-based IQ imbalance self-adaptive blind compensation method, comprising: receiving an unbalanced signal x(n) through two channels of I and Q, and intercepting a discrete signal of a certain length; Set the step factor; perform conjugate processing on the received signal x(n) to get x * (n); process the received signal x(n) to obtain the compensated output signal y(n)=x(n)+w(n)x * (n), where w(n) is the compensation coefficient; the step coefficient is introduced and the compensation coefficient w(n) is smoothed, and the compensation coefficient w(n) required by the system is obtained by loop iteration, and then the compensated The output signal y(n) of . The IQ imbalance adaptive blind compensation method of the present invention is able to operate in any quadrature receiver setup, whether single or multi-channel, and is independent of any specific structure or characteristics of the ideal baseband equivalent signal. The invention also provides a loop-based IQ imbalance adaptive blind compensation system.

The embodiment of the invention provides a wind power cooperative game climbing control method and device, and the method comprises the steps: providing a field group complementarity evaluation indexaccording to the active power deviation of a wind power field group; By utilizing complementary characteristics among the wind power plants and combining a field group control mode, providing field group climbing control based on complementarity; Constructing a payment function according to deviations between the wind power plant output and the output adjustment amount and between the actual windpower plant output and the planned value; Selecting different game strategies for the wind power plant, and providing a calculation method of the wind power plant adjustment amount in a climbing event; And according to the field group complementarity evaluation index and the payment function, based on a cooperative game mode, establishing a cooperative game mechanism to guide the wind power plantto participate in field group climbing control. The completion degree of the wind power plan of the field group can be improved when the climbing event occurs, the paid compensation cost of each windpower plant is reduced, and the wind power plant income is improved.