40results about How to "Well considered" patented technology

In a press having a plunger supported so as to be movable linearly back and forth by drive means which include at least one servomotor in combination with a rotatably supported inertia structure connected for rotation with the servomotor, the inertia structure has an inertia moment which is small enough to permit reversal of the servomotor within a stroke length of the plunger so that the stroke of the plunger is adjustable under the control of a control device connected to the servomotor for controlling its operation.

Based on the method of extracting the height information of urban buildings based on the shadows of multi-temporal remote sensing images, the present invention aims to form a systematic, fast and accurate method, using two remote sensing images of different time phases (the two images have different sun elevation angles and satellite azimuths) Angle), to analyze and calculate the shadow of the target building in batches, and then realize the rapid and accurate extraction of the height of the target building in the area, which will help to improve the efficiency of measurement, 3D modeling and other work; the specific implementation is mainly through calculation The length of the building shadow, combined with the angle relationship between the landmark building and its shadow on the image, selects the corresponding mathematical model to calculate the height value of the target building in the area; the two sets of building height results calculated by using two remote sensing images are used to construct a simulation model based on the least squares method. Combine the equations to obtain the corrected height of the target building, thereby improving the accuracy of the calculation results.

The invention relates to a heat dissipation method based on a slotless box cable tunnel thermal field model. The method includes the following steps of (1) exploring a cable tunnel to obtain parameters of all components of the cable tunnel, (2) building a mathematical model of a cable tunnel thermal field, (3) working out the calorific value of the cable tunnel according to the mathematical model and (4) designing the ventilation mode and the ventilation system of the electric power tunnel. Compared with the prior art, the heat dissipation method has the advantages of being effective and accurate.

The invention provides a gas well re-fracturing well selection and layer selection method. The gas well re-fracturing well selection and layer selection method comprises the following steps: (1) calculating a porous elastic stress steering coefficient Piporo; (2) taking a well selected according to step (1) as an alternative target well for repeated fracturing, calculating the deflation volume Vdof the target well; (3) calculating the instantaneous recovery percent IRR; (4) calculating the yield decreasing coefficient Di by taking the well selected according to step (3) as an alternative target well for repeated fracturing; (5) calculating a gas reservoir attenuation coefficient RDep by taking the well selected according to step (4) as an alternative target well for repeated fracturing; (6) calculating each single-layer reserve abundance omegai of the target well, and selecting a layer with the air layer reserve abundance greater than 0.2 as an alternative air layer for repeated fracturing. According to the gas well re-fracturing well selection and layer selection method, a judgment algorithm is determined by application of mathematical statistics and the dynamic analysis of the gas reservoir engineering, and the calculation is simple. In the method, factors affecting the repeated fracturing are considered comprehensively, the repeated fracturing well and layer are optimized,the implementation accuracy is high, the method has high transplantability, and the application is wide.

The invention provides a control method for a four-wheel-driven hybrid electric vehicle. The control method comprises the first step of detecting ignition key signals, torque required by the vehicle, the charge state of a power battery and vehicle speed signals, and the second step of controlling the vehicle to switch between multiple working modes according to the ignition key signals, the torque required by the vehicle, the charge state of the power battery and the vehicle speed signals. According to the control method, the multiple working modes are adopted, and the advantages of four-wheel-driven hybrid power can be given to full play. Through switching between the multiple working modes, the vehicle can be in an optimal working state all the time, so that fuel consumption is lowered. In addition, through distribution of the torque of all components in different working modes, the working efficiency of an engine, an ISG motor and a rear axle motor can be optimized, so that the fuel consumption of the whole vehicle is further lowered.

The invention provides a bus priority control method for avoiding bus clustering. The bus priority control method for avoiding bus clustering includes the steps that whether a bus will run into bus clustering or not after bus priority is given to the bus and the bus passes preferentially is judged; if the bus will run into bus clustering, priority control is not conducted on the bus; if the bus will not run into bus clustering, whether buses entering a bus station run into bus clustering or not under normal green lights in all directions and positions in front of the bus is judged sequentially, if bus clustering does not happen, priority control is conducted, and if bus clustering happens, priority control is not conduced. Through the scheme, bus priority control is associated with bus clustering, whether bus clustering will happen or not if priority control is conducted is considered when a bus priority control strategy is formulated, and thus the problems that in the prior art, when buses take the priority to pass through without limitations, clustering will happen to a bus station, passage of social vehicles is influenced, and traffic jams are caused are effectively avoided.

The invention discloses a component for a valve. The component comprises a base, a connection seat and a support column connecting the base and the connection seat. A plurality of fixing holes are formed in the base, a through groove is formed in the middle of the connection seat, the interior of the support column is hollow and is communicated with the through groove of the connection seat. A through hole penetrating the support column is formed in the side wall of the support column, a sealing plug is arranged at the position of the through hole in a fit mode, a plurality of lugs are arranged on the periphery of the connection seat, connection holes are formed in the lugs, vertical rods are arranged between the lugs and the base, the ends of the connection rods are connected with the lugs, and the other ends are connected with the base. According to the component, the connection holes and the fixing holes are used for fixing, and accordingly, the location effect is good, and the component overall firmness is high; insertion columns are used flexibly to assist the mounting and location of the component, and accordingly, the combination fit degree with other accessories is further improved, and good application prospects are provided.

The invention belongs to the technical field of inertial navigation and relates to a ground-based simulation test method for the automatic navigation function of an inertial navigation system. The ground-based simulation test method is free of the involvement of a flight control system and has low requirements for a turntable; a dual-axis hand-operated turntable is employed in stead of a three-axis hydraulic automatic turntable, and mutual cross-linking is reduced; besides, instruments such as an angular rate gyroscope and the like are reduced; the section of air routes covers all possible flight modes; people and devices joining in the test are few, so that the test is easy to organize and implement; the test is short in period and low in cost; and the method is simple and practicable.

The present invention relates to an energy consumption evaluation and optimization method of an extended discontinuous reception mechanism (eDRX). It belongs to the field of narrowband Internet of Things. The present invention includes the following steps: S1: when the terminal adopts the extended discontinuous reception mechanism (eDRX), establishes a Markov model with the terminal working state as a state variable; S2: when the terminal has data to transmit, it tries to randomly access the network; S3: When the random access of the terminal fails, the terminal needs to perform a backoff process, and the backoff value is determined by the number of re-access times and the initial backoff value; S4: When the backoff value increases linearly as mentioned above, the above energy evaluation model is used for verification. The invention can effectively and comprehensively evaluate the energy consumption of the terminal, effectively reduce the energy consumption of the terminal, improve the utilization rate of battery energy, and finally improve the life of the terminal.

The invention relates to a coke oven flue gas desulfurization reform process without coke oven shutdown. The coke oven flue gas desulfurization reform process without coke oven shutdown comprises the following steps that firstly, regions on the two sides of a concrete flue are excavated, and trepanning construction is carried out on an external joint of a first flue; secondly, concrete cutting is carried out; thirdly, after cutting is completed, whether cut and formed concrete blocks disengage from the flue or not is checked; whether the air drafting phenomenon at a gap is serious or not is observed, if yes, putty is used for temporary sealing, and then a sling is installed; fourthly, machined flue connection pieces fall onto the concrete flue along a cutting line; fifthly, the concrete blocks which are cut and formed originally are slung; sixthly, a transverse blind plate slides into the concrete flue; seventhly, the flue connection pieces are fixed to the concrete flue; eighthly, expansive cement is used for carrying out dense treatment on leaking positions of joints of the concrete flue and the flue connection pieces, trepanning construction is carried out on an external joint of a second flue, and the second step, the third step, the fourth step, the fifth step, the sixth step, the seventh step and the eighth step are executed again; ninthly, a vertical blind plate is installed in the concrete flue. The process for reforming coke oven flue gas without coke oven shutdown is safe and high in reliability.