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

The embodiment of the invention relates to a method for positioning an underground pipeline and a system thereof. The method comprises the following steps of: transmitting an electromagnetic wave signal to a wireless radio-frequency positioning marker containing an ID code; receiving a wireless signal which is fed back by the wireless radio-frequency positioning marker and contains the ID code and the underground pipeline information; carrying out checking treatment on the ID code and the underground pipeline information; determining an embedded place name of the wireless radio-frequency positioning marker according to the ID code; determining the embedded concrete position of the pipeline; and determining the trend of the pipeline according to the orientation information of the adjacent wireless radio-frequency positioning marker. The embodiment of the invention also provides a positioning system of the underground pipeline. The positioning method and the positioning system in the embodiment of the invention can realize the accurate positioning of the underground pipeline, find fault points as soon as possible when faults happen, reduce the digging area and the compensation cost,furthermore help maintainers establish the records of maintaining in normal times and overhauling the underground pipeline.

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 invention discloses an adaptive precise harmonic compensation method based on a photovoltaic grid-connected system. The method comprises the following steps: detecting output current and an outputvoltage on an AC side of a photovoltaic grid-connected inverter when the photovoltaic grid-connected inverter works at a maximum power tracking point; detecting the remaining capacity of the photovoltaic grid-connected inverter, judging the active power flow directions of different subharmonics, and formulating a compensation strategy; adaptively outputting a to-be-compensated component switch on-off signal according to the remaining capacity of the photovoltaic grid-connected inverter; and achieving precise harmonic compensation by using a repeated double closed-loop controller according tothe switch on-off signal. According to the adaptive precise harmonic compensation method disclosed by the invention, the remaining capacity of the inverter is dynamically tracked according to the external illumination changes, the compensation cost of the photovoltaic inverter can be effectively reduced, and the distortion rate of the grid side harmonics is maximally reduced while making full useof the limited remaining capacity of the photovoltaic grid-connected inverter.

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 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.

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.

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 discloses an intelligent hotel logistics washing and distributing system. The system comprises a system management platform, a data transmission service module and a user terminal module, wherein the system management platform comprises a communication interface module, an application management module and a system bottom layer interface module. Unified management is achieved by integrating software matching of hotels, logistics and washing plants, management is standardized, similar cost investment is reduced, the hotels, washing companies and logistics companies are subjected to seamless joint, the work efficiency is greatly improved, the system has high expandability, can be matched with monitoring management, visual operation is achieved, and the system has wider application prospect.

The invention belongs to the technical field of communication, and relates to a cycle-based IQ imbalance adaptive blind compensation method which comprises the following steps of: receiving an I-pathsignal x (n) and a Q-path signal x (n) which have been imbalanced, and intercepting a discrete signal with a certain length; setting a stepping coefficient; performing conjugate processing on the received signal x (n) to obtain x * (n); processing the received signal x (n) to obtain a compensated output signal y (n) = x (n) + w (n) x * (n), wherein w (n) is a compensation coefficient; introducinga stepping coefficient and smoothing the compensation coefficient w (n), obtaining the compensation coefficient w (n) required by the system in a loop iteration mode, and further obtaining a compensated output signal y (n). The IQ imbalance adaptive blind compensation method of the present invention can be operated in any quadrature receiver settings, regardless of a single channel or multiple channels, and irrespective of any specific structure or characteristics of an ideal baseband equivalent signal. The invention further provides an IQ imbalance self-adaptive blind compensation system based on circulation.

The invention discloses a logistics supply chain management device with an automatic sorting function, and relates to the field of logistics management. By aiming at solving the problem that an existing logistics supply chain does not have automatic sorting and discharging protection functions, the following scheme is provided: the logistics supply chain management device comprises a sorting table which is arranged in a rectangular-ambulatory-plane shape, conveying rollers with the same structure are rotationally mounted on the inner wall of the sorting table at equal intervals, a mounting frame is fixedly mounted at the top end of the sorting table, a driving motor is fixedly mounted on the mounting frame, an output shaft of the driving motor is fixedly connected with a vertically-arranged gear disc, a supporting rod is slidably mounted on one side of the mounting frame, and a scanner is fixedly mounted on the side, away from the mounting frame, of the supporting rod. The device is novel in structure, the sorting efficiency of a logistics supply chain can be effectively improved, the logistics management cost is reduced, meanwhile, objects on the logistics supply chain can be effectively buffered and protected, the objects are prevented from being damaged, and the device is suitable for application and popularization.

The invention provides a nonlinear compensation method and an ROF system. The method comprises the steps that an RRU obtains a first input training signal; The RRU inputs the first input training signal into a feedback link; The DPD processing unit obtains a first output training signal output from the feedback link; The DPD processing unit determines nonlinear characteristics of the feedback linkaccording to the first input training signal and the first output training signal; And the DPD processing unit performs nonlinear compensation on the feedback link according to the nonlinear characteristic of the feedback link. According to the non-linear compensation method provided by the embodiment of the invention, the non-linear characteristic of the feedback link in the ROF wireless transmitter can be obtained in advance, and the non-linear characteristic of the feedback link is compensated in advance. And then, the real nonlinear characteristic of the downlink can be obtained, so thatthe real nonlinear characteristic of the downlink can be compensated in advance, the linearization of the ROF system is realized, and the system performance can be improved.

The invention relates to a grounding disc device used for a concrete telegraph pole. The grounding disc device is constituted by a bottom plate, supporting columns disposed on the bottom plate, and fixed hoop connected with the top ends of the supporting columns. The grounding disc device is characterized in that the supporting columns are disposed on the periphery of the bottom plate, and the adjacent supporting columns are parallely arranged; the size of the bottom plate is cooperated with the size of the fixed hoop, and the fixed hoop is connected with a grounding disc lead. By adopting the grounding disc device, the damage on the road surface can be reduced, and the compensation costs can be greatly reduced. Under the same topographical and geological condition, the grounding resistance value of the grounding disc is lower than that of the grounding tube, and the low lightning current back flashover voltage can be reduced, and then the lightning resistant level of the line can be improved, and the power failure accident can be reduced. The construction operation intensity of the workers can be greatly reduced, and the construction quality can be guaranteed, and therefore the object of improving the working efficiency can be achieved.