Restaurant price fixing and dishes ordering device

Fine dispatching method for ship segmented coating

The invention discloses a ship segmented coating fine dispatching method, which comprises the following steps: S1, decomposing a coating segmented task into a unit task set, and endowing each unit task with a difficulty coefficient; s2, determining a set of personnel executing the coating task; s3, constraint conditions are determined, wherein the constraint conditions comprise priority relation constraints of all unit tasks in the unit task set and personnel constraints in the coating process; and S4, according to constraint conditions, obtaining a sequence of each unit task by adopting an improved decentralized search algorithm, and matching corresponding personnel for each unit task. According to the method, an approximate dynamic programming algorithm comprehensively considering a multi-dimensional judgment standard is used as a multi-style generation method, diversified high-quality solutions can be generated in an initial stage, the convergence speed of the algorithm is increased, ...

Double-way cashier's desk

The present invention relates to a double-channel cashier's desk, including counter and barrier glass positioned on the counter, and left and right two sides of counter surface of said counter are respectively equipped with an inlet channel and an outlet channel, every channel is formed from a curved portion and a straight portion with edge slope, and passed through inner and outer two sides of the barrier glass, the curved portion of the inlet channel is positioned at outer side of the barrier glass, and its straight portion is positioned at inner side of the barrier glass and is level with one side of counter, and the outlet channel is arranged opposite from the inlet channel. Said double-channel structure can reduce labour intensity of cashier and meet safe requirement and raise working efficiency.

Spectral amplitude modulation rolling bearing fault diagnosis method based on short-time Fourier transform

The invention discloses a novel spectrum amplitude modulation rolling bearing fault diagnosis method based on short-time Fourier transform, and the method comprises the steps: obtaining an amplitude and a phase in a time-frequency domain of a collected complex bearing signal through the short-time Fourier transform, keeping the phase unchanged, and carrying out the short-time Fourier transform. The method comprises the following steps: using different exponential weights to change the amplitude, forming an editing spectrum by a result and an original phase, then carrying out short-time inverse Fourier transform to obtain a correction signal, and finally carrying out Hilbert transform and Fourier transform on the correction signal to obtain a square envelope spectrum, thereby reducing the influence of noise and highlighting the fault characteristic frequency. By analyzing the square envelope spectrum, the fault characteristic frequency can be extracted, and finally the fault diagnosis of ...

Analogue means is ridden to aircraft

The utility model provides an analogue means is ridden to aircraft, is slide mechanism, Y axle front and back damping machanism, X rotation axis, X axle damping machanism and synchronous transmissionmechanism around owner / copilot running -board, PMKD, Y axle, slide mechanism fixed mounting is on PMKD around the Y axle, and the X rotation axis is installed on Y axle front and back slide mechanism, and X axle damping machanism installs on Y axle front and back slide mechanism, and owner / copilot running -board is installed on the X rotation axis, damping machanism is used for spacingly respectively and resets owner / copilot running -board around X axle damping machanism and the Y axle, synchronous transmission mechanism is used for the synchronous back -and -forth movement of drive owner / copilot running -board. Because owner / copilot running -board is when slide mechanism slides around X axis of rotation and along the Y axle around, enables foot pedal sport through damping machanism ...

Double-way cashier's desk

Method of mfg. industrial design model

The method includes steps: preparing needed shape of model by using expanding foam material; brushing a layer of resin with solidifying agent being added to on the model; brushing one layer of fiberglass and one layer of the said resin if high intensity is needed; planishing the model by using paint filler or plaster, spray-painting the model. Features are: simple processing, lightweight, high intensity. In some case, the said model can be as a practical product.

三自由度工装机构

The invention relates to a three-freedom fixture mechanism, used in splicing large-scale plate pieces and large-scale planar/curved steel plates, including a bracket set on the fixed steel plate by spot welding, two fixed hinge seats fixed at the two ends of the bracket, respectively, and aerial fixed hinge seat fixed on the aerial arm of the bracket, as well as an active hinge seat set on the active steel plate by spot welding, the connecting pieces connecting the three fixed hinge seats on the bracket with the active hinge seat are three extension pieces adopting screw nut driving structure, and the four hinge seats and the three extension pieces compose a triangular pyramid, the three extension pieces compose the three edges, and it adjusts the lengths of the three extension pieces to control the active hinge seat set temporarily on the active steel plate by spot-welding to lead the splicing point on the active steel plate for accurate location. It can control three freedoms of the splicing ...

Solar generating system for machinshop truck

Disclosed system includes solar cell, adjusting controls, accumulator, stand-by generator, relaying protection switch, control switch, and consumer. Solar cell is installed at top of machineshop truck. Each group of control switch in adjusting controls is connected to solar cell, accumulator, stand-by generator and relaying protection switch. Relaying protection switch through control switch is connected to consumers. Features are high stability and reducing consumption of oil and pollution.