69results about How to "Avoid the risk of collapse" patented technology

The invention discloses a playing method and a playing system of an interactive multi-view video. The method comprises the steps that a video terminal transmits a video request including a video identifier to a server; the video terminal receives a 3D (Three-Dimensional) model and a panoramagram of a video site corresponding to the video identifier fed back by the server; the video terminal receives a virtual viewpoint selected by the 3D model, and displaying the panoramagram corresponding to the virtual viewpoint; and the video terminal obtains video data corresponding to the virtual viewpoint, and plays the obtained video data. According to the technical scheme of the playing method, the operation pressure of the server can be reduced effectively, and the occupation of flow transmission between the server and the terminal can be reduced.

The invention relates to a boiler chimney and the method for forming inner-wall protective element. The inventive boiler comprises an outer frame and a liner. Wherein, said liner has a inner-wall protective, which is formed by a polymer silicate solidify layer, a epoxy paint solidify layer while said two layers can be resistant to acid and high temperature, and a strength layer; the polymer silicate solidify layer is fixed on the inner surface of liner; the epoxy paint solidify layer is fixed on the polymer silicate solidify layer; the strength layer is glass fiber grid cloth, which is extended and embedded into the polymer silicate solidify layer, or individually embedded into the polymer silicate solidify layer and the epoxy paint solidify layer to form the inner-wall protective element. Said invention has lower cost, the high temperature resistance, antisepsis property and the anti-leakage property.

A test-launch-control remote data transmission system is used for remote data communication in an aerospace test-launch-control system. The test-launch-control remote data transmission system comprises a front end and a rear end connected through optical fibers. The rear end is composed of a rear-end PLC (programmable logic controller) set, a central computer, a virtual display computer and a command input module. The rear-end PLC set allows remote communication with the front end, which is a test-launch-control front end, receives switching signals from the central computer and the command input module and feeds status information acquired by the rear-end PLC set back to the virtual display computer for displaying. The front end is composed of a front-end PLC set; on one hand, the front end is used for receiving control commands from the rear-end PLC set and controlling a test object to correspondingly run, on the other hand, the front end transmits the status information of the front-end PLC set to the rear-end PLC set. The front-end and rear-end PLC sets allow front-end and rear-end data transmission through establishing a controller link network.

The invention discloses a plugging and building method suitable for a remaining mine tunnel and a mine underground tunnel. The side walls of the mine tunnel and the underground tunnel are blocked through interlayer wall bodies; the inner space of the mine tunnel and the inner space of the underground tunnel are divided into a plurality of sectional type filling units; each sectional type filling unit is filled with materials, tailings and waste low-grade ore; and composite flora containing SRB and a long-acting carbon source are sprayed to the surfaces of the filling materials so as to inhibitoxidation of sulfide, reduce sulfate and precipitate heavy metal. The interlayer wall bodies are composed of parallel wall bodies and hydrophobic particle materials filled between interlayers, the upper ends of the interlayer wall bodies and the top of the tunnel are blocked through foam concrete within a certain height range, if the pressure in the tunnel is too large due to the rainy season andother reasons, the strength of a foam concrete layer is low, the top end is locally cracked to form a similar pressure relief valve, wall body cracking and collapsing caused by the too high water pressure in the tunnel can be effectively avoided, and therefore the safety of sectional type filling unit plugging is guaranteed.

The invention discloses an irrigation and draining brake which comprises a flashboard frame and a flashboard, wherein a water inlet through hole is formed in the flashboard frame. Guide grooves are formed in both sides of the flashboard frame. Both sides of the flashboard are contained in the guide grooves and can move along the guide grooves, positioning adjusting teeth are arranged on the inner wall of the guide grooves, and elastic clamping tongues which are matched with the positioning adjusting teeth are arranged on both sides of the flashboard. The irrigation and draining brake is fixed on an opening of a ridge, irrigation and draining work is controlled by moving the flashboard, and water level height can be adjusted. The irrigation and draining brake has the advantages of being convenient to use, safe and reliable.

The invention discloses a multidirectional movement electrical equipment overhaul stand, which comprises a supporting mechanism arranged outside a telegraph pole in a sleeving mode, the top of the supporting mechanism is rotationally provided with an overhaul stand body, the overhaul stand body comprises a rotating disc rotationally connected to the top of the supporting mechanism, and a clamping groove arranged outside the telegraph pole in a sleeving mode is formed in the middle of the interior of the rotating disc. The invention relates to the technical field of power maintenance. According to the multi-directional movement electrical equipment overhaul stand, the overhaul stand body and the lifting table mechanism are supported by arranging the supporting mechanism, a worker can stand on the lifting table mechanism to conduct overhaul and maintenance operation, the space of the lifting table mechanism is wide, and the worker can stand to work more stably and safely; and meanwhile, the overhauling table and the lifting table mechanism can be attached to the supporting mechanism and the telegraph pole to rotate, then electrical equipment above the overhauling table and the lifting table mechanism can be comprehensively overhauled in a circle, the lifting table mechanism can also ascend and descend on the fixing frame, then the lifting table can be lifted to a higher height, and overhauling operation is further facilitated.

The invention discloses a tunnel excavation method. The method comprises the steps that S1, coring operation is carried out by adopting a coring bit along a tunnel face contour line and multiple crisscross lines in the tunnel face contour line, the coring bit is coaxially connected with a coring cylinder, a cylindrical core is drilled into the coring cylinder, cut off and taken out of a tunnel, crisscross grooves along the tunnel face contour line and in the tunnel face contour line are formed, and the tunnel is cut into multiple cylindrical residual rock masses; S2, the residual rock masses are extruded in the grooves respectively through an extruding and expanding device until the joints of the residual rock masses and the tunnel are extruded and cut off, and the residual rock masses aretaken out of a tunnel face; and S3, the step S1 and the step S2 are repeated until excavation construction of the whole tunnel is completed. The method avoids influences of shock waves or noise caused by blasting on buildings and citizens, and the risk of landslide or rock collapse is reduced. The residual rock masses can be used for building walls of cover plate culverts and stone arch culvertsor retaining walls of roadbed cutting slopes.

The invention provides a vehicle-mounted gateway, an intelligent automobile and a control method, and relates to the technical field of vehicle-mounted communication, and the vehicle-mounted gateway comprises a data receiving module which is used for receiving message data output by a data sending end, and a data processing module which is used for receiving the message data transmitted by the data receiving module, classifying the message data and sending the classified message data to a server; the data classification module is used for acquiring control messages and non-control messages, the data layering module is used for determining a control message scheduling strategy of each control message, and the data classification module is used for outputting the control messages according to the control message scheduling strategies. The data output module is used for outputting the non-control message according to the non-control message scheduling strategy. According to the invention, the risk of system crash caused by frequent switching of message transmission tasks can be effectively avoided by adopting a hierarchical scheduling strategy.

The present invention relates to the technical field of the operation of the atomic energy unit, in particular to a method for solving the optimal operation of an atomic energy unit-containing power grid at a high frequency. The specific steps comprise: establishing an objective function, wherein the objective function is used to confirm an optimization result of a power grid operation mode; setting a control variable, wherein the control variable is used to determine a coordinated control strategy parameter of the power grid operation; and by using a simulation system, performing adjustment to obtain an optimal objective function. According to the method for solving the optimal operation of the atomic energy unit-containing power grid at a high frequency provided by the present invention,key difficulties of ensuring the safety of the atomic energy generator set and the thermal power generating unit in the power grid, comprehensive consideration of the frequency control measures of the power grid, and ensuring the stable operation of the power grid are overcome, and the effect of the stable operation of the power grid based on the simulation data of the power grid operation is significantly improved.

The invention belongs to the field of signal processing, and particularly provides a distributed tracking method for an extended target. According to the method, a heterogeneous network is considered,the number of scattering sources observed on each node obeys Gaussian distribution of different mean values, and the observation noise power of each node is different. The method comprises the following steps: firstly, each node calculates to obtain an intermediate estimated value of the dynamic state and shape characteristic of an extended target by exchanging information with neighbor nodes thereof; and then, each node propagates the intermediate estimation result in the neighborhood, and final estimation results of the dynamic state and the shape characteristics are obtained respectively.The method mainly aims at an extended target, and in a distributed network, each node can estimate dynamic states such as the position, the speed and the acceleration of the target and shape characteristics such as the direction and the size of the target at the same time. Compared with a non-communication method of each node, the method provided by the invention can effectively improve the tracking performance of each node, the tracking performance is close to a centralized method of sending the information of each node to a fusion center for processing, Meanwhile, the risk that the whole system crashes when the fusion center goes wrong can be effectively avoided.

The invention discloses a device for detaching a piston relieving spring of a locomotive brake cylinder. The device comprises a positioning device, a pushing rod and a lever, wherein the positioning device is used for fixing a brake cylinder cover; the pushing rod is used for driving a relieving spring to compress; the pushing rod comprises a first end part and a second end part; the first end part is used for driving a screw rod on the inner side of the relieving spring to move; the lever is used for driving the pushing rod to move; one end of the lever is arranged as a hinge end; the other end of the lever is arranged as a moveable free end; the hinge end is hinged with the second end part; a locking mechanism is connected with the free end. The device can reduce the labor intensity of the operator and can avoid potential safety hazard. Besides, the invention also discloses a method for detaching the piston relieving spring of the locomotive brake cylinder.

The invention discloses a drawing method of a variable length and width background of a vehicle-mounted entertainment system. The vehicle-mounted entertainment system comprises a frame based on a QT drawn graph in Microsoft embedded operation system WinCE, a disk file system which is used for storing various display graph files, and a memory. The drawing method comprises the steps that a background drawing program of the vehicle-mounted entertainment system is started; the size of a large background graph is determined; nine graph resources needed by the background drawing program are loaded into the memory; whether the memory space of the background graph is successfully loaded is determined; and after successful loading, the corresponding background graph is drawn at a corresponding position on a large background graph according to the size of the large background graph. According to the invention, Flash space taken by a background graph resource is reduced; when the background is drawn, the graph loading speed is improved; the work efficiency is improved; time required by background graph drawing is reduced; the system efficiency is improved; and increased crash risk caused by failed memory application is avoided.

The invention provides a method and a system for intelligent employment of a software platform, which are high in matching performance and high in man-machine interaction, and can be used for mass data storage and elastic expansion. The method mainly comprises the steps that enterprise users publish employment tasks through an enterprise PC terminal platform; flexible occupational personnel fill in personal resume information through the APP terminal and apply for intentional employment tasks; the platform management terminal preliminarily performs matching verification on the application personnel and the employment task, and the application is successful after the matching is successful; the method comprises the following steps: carrying out deep matching between the application personnel and the employment task through a big data platform, screening out the application personnel most conforming to the employment task, generating a three-party agreement electronic contract, and signing the electronic contract by each party to achieve the employment agreement.

The invention discloses a steel structure plant adapting to the terrain. The steel structure plant comprises a first building body constructed in a flat ground area, a second building body constructedin a mountainous area, and a retaining wall arranged on the section of the mountainous area; the first building body comprises a first floor layer arranged in the flat ground area, first-layer vertical columns made of steel, second-layer vertical columns made of steel, and supporting steel plates, and the bottoms of the second-layer vertical columns are welded to the supporting steel plates; first cross beams are fixedly connected between the upper parts of the first-layer vertical columns, and first floors are arranged on the first cross beams; and the second building body comprises a secondfloor layer arranged on the mountainous area and second vertical columns arranged on the second floor layer. Compared with the prior art, the steel structure plant can fully adapt to the terrain, excavation of a large amount of earth is avoided, the construction cost of the plant can be lowered, and the construction period of the plant can be shortened; and in the construction process, a steel structure frame is adopted, thus dust pollution in the construction process is small, and the respiratory tract health of workers can be prevented from being affected.

The invention is applicable to the technical field of coal mining equipment, and provides an intelligent protection device for unmanned mining equipment, which comprises a protection frame, the protection frame comprises two side plates, a base is clamped between the lower parts of the two side plates, and the tops of the two side plates are provided with an arc-shaped top plate; ground gripping structures are arranged at the bottoms of the two side plates; first supporting structures are arranged on the two side plates; and a second supporting structure is arranged on the arc-shaped top plate. Therefore, the unmanned mining transport vehicle is of an integrated structure and is good in stability, the danger of mine collapse is avoided, the operation safety of the unmanned mining transport vehicle in the mine is guaranteed, the working efficiency is improved, and the equipment cost is reduced.

The invention discloses a prefabricated double-T plate end connecting structure and a construction method thereof. The prefabricated double-T plate end connecting structure comprises angle steel connecting a prefabricated beam and a prefabricated double-T plate web, and a bridging connecting plate connecting adjacent flange plates, wherein a round hole and a horizontal long round hole are formed in the two side plate faces of the angle steel correspondingly; the other end of a threaded connecting piece penetrating through connecting holes in the two sides of the bridging connecting plate is positioned in a sleeve in a flange plate interlayer; the sleeve is anchored on a plate piece pre-buried in the flange plate interlayer; an anchoring steel bar pre-buried in the flange plate interlayer is fixed to the plate piece; a first tubular body matched with the round hole of the angle steel is pre-buried in the prefabricated beam; a second tubular body matched with the long round hole of the angle steel is pre-buried in a web interlayer; a first connecting bolt penetrates through the first tubular body; the two ends of the first connecting bolt penetrate through the round holes of the angle steel on the corresponding sides correspondingly and are connected through threaded fasteners; a second connecting bolt penetrates through the second tubular body; and the two ends of the second connecting bolt penetrate through the long round holes of the angle steel on the corresponding sides correspondingly and are connected through threaded fasteners.