505results about How to "Simple homework" patented technology

The invention provides a Beidou short message technology based multi-mode and multi-frequency maritime precisely positioning method which comprises the following steps: first, using an automatically downloaded and updated IGU ultra-fast track to solve the track correction information, the clock correction information and the atmospheric correction information; second, conducting real-time RTCM data stream decoding; and accessed by data stream, using the IF model and the MW model respectively to calculate the correction information of the observation value and the wide-lane ambiguity information; carrying out reasonable transformation to the solved correction information; extracting the effective fractional part of the information for decoding and using the Beidou short message technology to broadcast it to a user. And while a mobile station receives real time data streams, it receives the Beidou short message data and decodes the data for the recovery of effective correction information. According to the invention, the IF model and MW model are used to seek the real-time dynamic position of a mobile station through the PPP technology; and the method attempts to achieve fixed ambiguity so as to provide the user with high-precision positioning. Compared with the prior art, the method of invention is highly precise and stable. The method can also be applied widely and practically.

The invention belongs to the technical field of marine ships, and discloses miniature salvage drilling device and method coordinated with ROV for a marine oil tanker. The device comprises a main frame, a pre-positioning device, an accurate positioning device, a hollow drilling rig, an oil pumping valve, a hydraulic control valve unit, an electronic control cabin and an assorted sensor, wherein the oil pumping valve is connected with the main frame through a clamping mechanism of the oil pumping valve; the pre-positioning device is arranged on the periphery of a front base plate of the main frame; the accurate positioning device is arranged on the front base plate of the main frame; the hollow drilling rig is arranged in the center of the main frame; the hydraulic control valve unit, the electronic control cabin and the assorted sensor are arranged at the rear part of the main frame. The miniature salvage drilling device disclosed by the invention is small in volume and light in weight, can be conveniently loaded by the ROV to carry out operations under seawater without the complicated hoisting operation, and can further be attached to a ship wreck in any random posture, so that the device is very suitable for the situation that the posture of the ship wreck is undefined in the seabed.

The invention relates to a modified double-component epoxy resin paint, wherein the raw materials of the main ingredients includes bisphenol A epoxy resin, multiple functional group glycide amine epoxy resin and filler selected from silicon dioxide, titanium oxide, antimony trioxide, zinc oxide and calcium carbonate, the raw material of the curing agent includes modified aliphatic polyamines, organic diatomaceous soil and methyl ethylene glycol.

The invention discloses an underwater lift adjusting device for enabling a net cage to resist wind waves. The underwater lift adjusting device for enabling a net cage to resist wind waves consists of an upward-floating body, a bolt mechanism, a lift propeller mechanism, a net cage sinking/floating guide pile, an underwater screw anchoring mechanism, a seafloor base and a balancing weight. The main connection way of the device is as follows: the upper end of the net cage sinking/floating guide pile is connected with the upward-floating body through the bolt mechanism, the lower end is fixed with the seafloor base in a welding way, and the underwater screw anchoring mechanism is sleeved at the lower end of the net cage sinking/floating guide pile in a slip connection mode. ccording to the invention, the net cage can be anchored on the seafloor through the screw anchor, the underwater depth of the net cage can be adjusted through the propeller, and the stable and balanced towing displacement can be realized through the upward-floating body and seafloor base, thereby achieving the aim that the net cage can be fixed on the seafloor or moved away and the underwater lift can be adjusted and controlled; and the device has the advantages of simple operation process and low construction cost, is safe and reliable, and can be easily accepted by common farmers.

Disclosed in the application is an industrial internet-of-things platform comprising a raw material data acquisition and management system, a production data collection and management system, a sales data acquisition and management system, a storage data acquisition and management system, an equipment material data acquisition, and a quality control tracing collection and management system. The raw material data acquisition and management system consists of a sample extraction report generation module, an initial review report generation module, a recheck report generation module, a raw material warehousing report generation module, and a settlement report generation module. The production data collection and management system includes a raw material link data generation module, a production link data generation module, a finished product package link data generation module, and a finished product link data generation module. The sales data acquisition and management system contains a cargo data management module, a sales contract management module, and a customer data management module.

The invention discloses a high fluidity nano talcum powder modified polypropylene composite material and its preparation method, wherein the material is prepared from polypropylene resin, grafted and modified polypropylene resin, rubber toughening agent, coupling agent and nanometer talcum powder through blending and extrusion by screw rod extrusion machine set.

The invention discloses a method for acquiring surrounding road conditions by a mobile terminal, which relates to the method for acquiring information from a service center by the mobile terminal. The method comprises that: the service center records mapping relationships between road sections in an electronic road condition map and the road sections in a standard electronic map into a road condition table; the service center periodically updates the road conditions in the road condition table; the mobile terminal generates a road condition request comprising current position coordinates and a searching radius, and transmits the road condition request to the service center; the service center finds all the road sections meeting conditions and numbers thereof from the standard electronic map according to the road condition request, further extracts road condition states of all corresponding road sections from the road condition table, and finds congested and crowded road sections from all the corresponding road sections; the service center generates textual description information comprising the names, congestion or crowding of the road sections for the congested and crowded road sections; the service center returns the textual description information to the mobile terminal; and the mobile terminal displays the textual description information. In the method, high processing speed and small data traffic are ensured, and the mobile terminal is free from the influence of electronic road condition map sorts.

The invention relates to an automatic hot press machine for automatically performing the engagement manufacturing process of a first material part and a second material part. The automatic hot press machine comprises a bearing assembly with a first bearing platform and a second bearing platform; an adjusting unit with an assitant block, a set of images capturing devices, a image processing and a contraposition device; and a hotpressing assembly with a hotpressing device and a shifter. The first material part and second material part are loaded and fixed by bearing assembly. The adjusting unit adjusts the first bearing platform by analysising the images of overlaping coupling areas of the first material part and second material part to make the coupling areas of the first material part and second material part correspond with each other. The bearing assembly moves under the hotpressing device to perforn hotpressing. After hotpressing, the bearing assembly moves to the original position. The invention can simplify the job operation, increase the utility factor, reliability and good rate and reduce the cost.

The invention discloses a method for determining a dynamic accelerated speed of a carrier precisely. A satellite navigation receiver is fixedly connected to and mounted on the airborne gravity measurement carrier, and the dynamic accelerated speed of a carrier is directly calculated through observation information of the satellite navigation receiver. The method has the advantages as follows: the accuracy is high, no base station is required to be matched with the method, the operation is simple, the application range is wide, and the like.

The invention discloses a device and a method applicable to linear tunnel axis positioning measurement. The method mainly comprises the following steps: laying a central axis control point of a linear tunnel by adopting a total station, erecting a laser level meter on a centered and leveled measuring tripod through a special connecting device, accurately centering the instrument on the central axis control point, calculating the sight height of the instrument by measuring the instrument height or comparing with a reserved elevation point, so that three-dimensional absolute accurate positioning of the laser level meter is realized, a height datum line and an axis datum line with high precision visibility can be provided for a tunnel face construction site, and convenience is brought to field setting-out of a constructor. The equipment used in the method is cheap, simple in operation, high in precision and wide in application range and can perform cross-operation with other processes during setting-out, and the working efficiency is obviously improved.

The invention provides a control method for the activities of overburden rock in a stope under a gully topography based on remote sensing monitoring. The control method comprises the following steps: selecting a mine used for mining coal seams shallowly buried under a gully topography and typical in northwest mining areas in China and learning about overburden rock occurrence states and concrete mining parameters corresponding to different working surfaces of the mine; acquiring a plurality of time-phase images of the earth surfaces of gulleys by using an unmanned aerial vehicle platform and constructing gulley landforms by using a SFM three-dimensional reconstruction method; extracting differences of the gulley landforms constructed at a plurality of time phases by using a time series analysis method, acquiring the dynamic deformation information of a mining slope and extracting related landform characteristic parameters of the gulleys by using a digital landform analysis method; and separately controlling the activities of overburden rock in the stope in different ways according to geological conditions for mining at different working faces based on the dynamic deformation information of the mining slope, the landform characteristic parameters of the gulleys, the overburden rock occurrence states and the concrete mining parameters. The method provided by the invention can effectively control the activities of overburden rock in mining of shallowly buried coal seams under a gully topography and guarantees safe and high-efficiency mining at underground working faces.

The invention discloses horizontal foaming assembly and disassembly equipment for water storage tanks of solar water heaters, which comprises a rail bracket, a left end and a right end foaming moulds of the coaxial-shaped sheath that are arranged in the middle part of the rail bracket, a positioning movable rotation sealing cover with a liner, a cantilever arm and a cantilever end rotation sealing cover, a sheath circle-checking device arranged above the cantilever arm and the cantilever end rotation sealing cover and used for installing and blocking and setting the sheath, a sheath bracket and a liner bracket which are arranged under the sheath circle-checking device; the left end and the right end foaming mould of the sheath respectively carry out the horizontal movement with the positioning movable rotation sealing cover with the liner, the cantilever arm and the cantilever end rotation sealing cover oppositely to the rail bracket; the sheath circle-checking device carries out the horizontal movements oppositely to the rail bracket; the sheath bracket and the liner bracket carry out the rotation oppositely to the rail bracket. The horizontal foaming assembly and disassembly equipment for the water storage tanks of the solar water heaters can complete the operation of the liner, the sheath assembly, the positioning, the mould sealing and the mould disassembly automatically, can realize the polyurethane foaming automation of the solar water storage tanks, reduce the material consumption, reduce the manufacturing cost, reduce the operation strength of workers, improve the operation efficiency and can improve the product quality.

The invention discloses an installation and application method of aerial cableway for transporting a construction material in a mountainous region. A double-pivot single-cable reciprocating type aerial cableway is adopted, so that the construction input is less, the operation is carried out simply, the labor efficiency is high, the influence of weather and external environment factors is less, meanwhile, the occurrence of the phenomenon that a lot of lands are occupied due to the construction of transportation roads, and trees and vegetations are damaged is avoided, the requirement on green and environmental-friendly construction is met, and the method has a higher economic technology performance ratio for solving a transporting problem of the construction material and devices in the mountainous region and a forest region.

The present invention relates to a checking method of a circuit substrate and a checking device thereof, wherein a checking probe which is provided with a probe at the front end is moved to the circuit substrate with a plurality of terminals for performing electric checking. A plurality of representative terminals are selected with a mode of surrounding a checking target terminal. The checking probe is moved to the representative terminal, and a detected position which is conducted with the probe is detected as a contact position of the checking probe. Interpolation operation is performed for the contact position between the checking probe and the plurality of representative terminals, and a pressing amount which is required for pressing the checking probe from the contact position to the checking target terminal is added thereby operating a moving target position of the checking probe. The checking probe is moved to the moving target position for performing an electric checking for checking the target terminal. Therefore, even when thickness deviation, warpage/fluctuation of the circuit substrate are generated, non-linear displacement on the surface of the circuit substrate can be appropriately coped so the checking probe accurately contacts with the checking object terminal for performing electric checking.

A pallet rack (21) is provided with support struts (210), beam members (211), and sub-beams (212) which fold upwards. In the pallet rack (21), the support struts (210) and the beam members (211) are connected and arranged so that the support struts (210) are opposite one another and the beam members (211) are opposite one another, and a plurality of sub-beams (212) bridge the gap between the opposing beam members (211) so as to form a pallet base (20).

A husker having a pair of rubber rolls (4, 5) on a base part (24), one of the pair of rubber rolls (4, 5) being supported at both ends as an anchored roll by anchor bearings (23), and the other roll being supported at both ends as a moving roll by moving bearings (22). One anchor bearing (22) and one moving bearing (23) are provided with seat parts (25, 35) capable of sliding in a direction away from the shaft ends of support shafts supporting the rubber rolls (4, 5), and the seat parts can be rotated to positions where the seat parts avoid interfering with the axial movement of the rubber rolls (4, 5).

The invention provides a special machinery for degenerated grassland improvement, in particular to a grassland hardening loosening machine which mainly comprises a stand, a plurality of steel needle wheel groups inlaid with steel needles, a steel needle wheel support fixed part, a hydraulic lifting part and a walking part. The machine finishes operation of efficiently loosening grassland soil which degenerates and hardens for many years in the condition of not destroying grassland vegetation and protecting grassland ecology with the assistance of other supplementary parts of a steel needle wheel group system and under the action of traction force of farm machinery, thereby enhancing the capacities of water seepage, water retention and water storage as well as the air permeability and the oxygen holding capacity of the soil, improving the physical structure of the soil and the underground growth conditions of plants and achieving the purpose of protectively improving a degenerated and hardened grassland.