300results about How to "Environmental factors have little influence" patented technology

The invention provides an automatic stacking/reclaiming system for a bulk cargo storage yard. The automatic stacking/reclaiming system comprises a stacker distributed in the storage yard and provided with a stacking cantilever, a reclaimer distributed in the storage yard and provided with a reclaiming cantilever, a first laser scanning device installed on the stacking cantilever and used for acquiring scanning data of the storage yard, a second laser scanning device installed on the reclaiming cantilever and used for acquiring the scanning data of the storage yard, a stacking positioning device and a reclaiming positioning device for acquiring GNSS positioning information, a stacker control device, a reclaimer control device, a remote stacking processing device and a remote reclaiming processing device. The stacker control device and the reclaimer control device acquire and output the GNSS positioning information, receive a stacking control signal and a reclaiming control signal, and control the stacker and the reclaimer to execute corresponding stacking/reclaiming actions according to the control signals. The remote stacking processing device and the remote reclaiming processing device receive a stacking instruction and a reclaiming instruction input by a peripheral user, acquire coordinate information of the corresponding storage yard according to the instructions, the scanning data and the GNSS positioning information, and generate stacking/reclaiming path information to serve as the stacking/reclaiming control signals to be output to the stacker control device and the reclaimer control device. The automatic stacking/reclaiming system is based on GNSS positioning, and is high in accuracy and low in cost, data can be shared, and automatic operation of the bulk cargo storage yard is achieved.

The invention discloses a landslide MIMO radar monitoring system and monitoring method. Emitting and receiving antennas of the system are an MIMO radar antenna array. Emitting and receiving time-sharing selectors are connected with emitting and receiving antenna array elements respectively. A system synchronization control unit is connected to the emitting and receiving time-sharing selectors through an antenna time-sharing control unit. The monitoring method is characterized by carrying out MIMO antenna array time-sharing emission and step frequency continuous wave signal reception; carrying out inverse Fourier transform and distance compression on echo data, carrying out phase discontinuous correction on radar echo data, calculating time delay compensation factor and carrying out beam forming method azimuth focusing to obtain a high-resolution complex image; carrying out continuous monitoring to obtain a plurality of complex images and forming complex image pairs; and calculating differential interference phase after complex image pair registering and extracting deformation value and carrying out early warning. According to the landslide MIMO radar monitoring system and monitoring method, non-contact remote monitoring is achieved, monitoring range is wide, azimuth resolution ratio is high, real-time performance is high, data acquisition is quick, system device is light and portable, and layout is adjustable.

The invention discloses a portable grain situation detection device, comprising a shell which is provided with a gas collecting inlet and a gas collecting outlet; the shell is internally provided with a detection circuit which comprises a single chip microprocessor, a temperature and humidity sensor, a carbon dioxide sensor and a micro-typed pneumatic pump; the temperature and humidity sensor and the carbon dioxide sensor are connected with the single chip microprocessor which is connected with the micro-typed pneumatic pump by a power driving unit. The portable grain situation detection device can be held by hand for use, is convenient for carrying, has fast detection speed, simple operation and exact result, and can meet the requirement of grain situation detection in national grain depots. The portable grain situation detection device of the invention is suitable for the early detection of grain storage fungi and pest damages, and ventilation effect evaluation in a grain depot, and ensures the safety of the management personnel of grain depots.

The end-bearing type large-diameter pile pier vertical load-bearing capacity detection method includes the following steps: a. according to the geological prospecting material estimating end-bearing capacity and frictional resistance value, designing and making load box; b. welding the load box on the full-length reinforcing cage end portion, hoisting and placing the reinforcing cage into the pile hole; c. cleaning pile hole, check and acceptance and pouring concrete; d. after the concrete strength is reached to 70%, slow-speed retaining loading process or rapid-speed retaining loading process to detect the load-bearing capacity of pile; and e. high-pressure injecting flow state expansion concrete into the load box. Its detection cost is low and its detection data are safe and reliable.

The invention provides a real-time tracking system and method of mobile equipment, applied to help improve tracking reliability and antijamming capacity of the mobile equipment. The system comprises a laser tracking base station subsystem and a tracking deviation feedback subsystem; the tracking deviation feedback subsystem comprises a receiving screen; the laser tracking base station subsystem comprises a controller, a driver, a horizontal motor, a pitching motor and a laser ranger; the tracking deviation feedback subsystem is used for processing an image acquired on the receiving screen and determining deviation information of a laser point relative to the center of the receiving screen; the controller is used for generating a control command according to the received deviation information and driving the driver to control the horizontal motor and the pitching motor, thus driving the laser ranger to rotate and allowing the laser ranger to send out laser to the center of the receiving screen. The real-time tracking system and method is applicable to the technical field of communications.

The invention discloses a multi-wavelength Brillouin erbium-doped fiber laser with an annular cavity based on a Taiji structure, which comprises a pump light source (6) and an annular cavity with a Taiji structure, wherein the annular cavity with the Taiji structure comprises a first coupler (1), a first single mode fiber (3), a second single mode fiber (4), a third single mode fiber (5) and a second coupler (2). In the annular cavity with the Taiji structure of the invention, the first single mode fiber, the second single mode fiber and the third single mode fiber have bilaterally injected pump light simultaneously, thereby effectively reducing the threshold value for generating Stokes signals and further being favorable for generating high-order Stokes signals. The EDFA is arranged outside the annular cavity, thus link loss and ASE noise in the cavity are reduced, and the system is more compact and stable. A commercial EDFA can be used for well inhibiting a self-excited cavity die and has a flat gain spectrum, thus multiple wavelengths can be stably output in a very wide range only by changing the input wavelength of a tunable laser.

The invention belongs to the technical field of medical appliances, and relates to an ultrasonic puncturing navigation method, particularly to an ultrasonic puncturing navigation method based on electromagnetic location. The navigation method orderly comprises the following steps: A, tracking and collecting position information of a probe and a puncturing needle through a puncturing location system under the control of a navigation software subsystem, wherein the puncturing location system refers to an electromagnetic puncturing location system; B, transmitting the collected information to an ARM (Advanced RISC Machines) processor in the navigation software subsystem through the electromagnetic puncturing location system, and performing data correction and post treatment; and C, transmitting the information after being corrected and post-processed to an ultrasonic imaging equipment through the navigation software subsystem to realize visual display. The ultrasonic puncturing navigation method based on the electromagnetic location has the advantages of exact location, small volume and light weight; the method is nonradiative and is slightly affected by environmental factor; the puncturing needle path is displayed in real time; and the needle tip position can be clearly observed at random angle, the puncturing accuracy is improved, the hemorrhagic complication is reduced, and the safety is improved.

The invention discloses an on-line diameter measurement device for a large-diameter solid of revolution, and the device comprises a first measurement group and a second measurement group, wherein the first measurement group and the second measurement group are symmetrically arranged on two sides of a measured solid of revolution; the first measurement group and the second measurement group are symmetrical to the axis of the measured solid of revolution; the two measurement groups respectively correspond to two ends of the measured solid of revolution; each measurement group comprises a transmitting end for transmitting measurement lights, a receiving end aligned with the transmitting end and an adapting piece for connecting the transmitting end and the receiving end; the measured solid of revolution is positioned between the transmitting end and the receiving end; the measured lights are formed into blocked lights and residual lights after meeting the measured solid of revolution, wherein the blocked lights are blocked by the measured solid of revolution and can not be transferred to the receiving end, and the residual lights penetrate through the measured solid of revolution to reach the receiving end; the receiving end receives the residual lights and calculates the light band width of the residual lights; the receiving end inputs the light band width into a processor; and the processor calculates to obtain the diameter of the measured solid of revolution. The on-line diameter measurement device has the advantages of high measurement precision and low manufacture cost.

The invention provides a line locking welding and heat treatment integrated operation construction method, belongs to the technical field of online welding of steel rails, and is capable of solving the problem of instability of existing replacement construction and online locking welding technologies. According to the rail welding standard operation process, two zones for locking welding and pulling locking are formed, and the welding zone and the pulling locking zone in front of the welding zone can be constructed independently; according to a selected zone length L and a rail temperature difference, a corresponding pulling quantity delta L can be obtained, and rails are directly pulled for locking welding; during construction, fasteners in a range of 20 m from steel rails at a static end should be completely removed, gauge rods are used for locking the steel rails, and special rail cushion devices are placed under the steel rails, so that a line is elevated to produce a downward slope 1% of an original line. A rail welding vehicle climbs to a station and enables the steel rails at movable and static ends to be aligned, an air-pressure rail welding machine falls, and construction operations of rail pulling, welding, air blast cooling and pressure-maintaining heat treatment are sequentially completed through one-time clamping. The operation construction method is mainly applied to online welding of the steel rails.

The invention relates to a multi-base-station hybrid location method. The multi-base-station hybrid location method comprises the steps of reading pilot frequency information of base stations on the periphery of a terminal, and enabling the pilot frequency information to comprise arrival time difference and pilot frequency intensity of one or a plurality of cells; obtaining main cell PN, and determining position coordinates and sector ranges of serving base stations according to the main cell PN; calculating distances according to the corresponding arrival time difference of a cell PN at least comprising the main cell PN, and initially determining an area where the terminal is located according to the distances and the position coordinates and the sector ranges of the serving base stations; screening neighbor cell PN according to a threshold value of the pilot frequency information; performing correction refinement on the initially determined area according to the main cell PN and the pilot frequency information corresponding to the screened neighbor cell PN, and determining the accurate position of the terminal. The invention relates to a multi-base-station hybrid location device. According to the multi-base-station hybrid location method and device, the problem that consideration on environmental differences of base station signal transmission in different directions in an existing multi-base-station location algorithm is lacked can be solved, and errors in a time difference location technology caused by the influence of a wireless transmission environment can be reduced as far as possible.

The invention relates to a special rhizobium-containing controlled release fertilizer for soybean as well as preparation and application thereof. The fertilizer contains the following ingredients by weight parts: 10-25 parts of urea coated nitragin compound, 5-15 parts of sulphurated macromoleclar polymer coated urea, 8-18 parts of 5% humic acid coated urea, 35-40 parts of diammonium phosphate and 20-30 parts of potassium chloride. The invention further provides a preparation method of the special controlled release fertilizer for soybean. The dosages of the potash fertilizer, the phosphatic fertilizer and the enveloped nitrogenous fertilizer with the nutrients released at different periods are reasonably selected according to the rule of requirement of fertilization of soybean to form the special fertilizer with the double functions of inoculation and fertilization for soybean. Field experiments show that the utilization efficiency of the fertilizer can be obviously improved, and theyield of the soybean can be obviously increased.

The invention discloses a longitudinal welded pipe welding seam protrusion detecting system based on laser scanning. The longitudinal welded pipe welding seam protrusion detecting system comprises a transmission device, a two-dimensional laser scanning sensor and an upper computer, wherein the two-dimensional laser scanning sensor is arranged above a welding seam and used for scanning the welding seam along the axial direction of a welded pipe at equal distance, and acquiring two-dimensional contour data of the welding seam and radial cross sections of the welded pipe on both sides of the welding seam at different positions; the transmission device is used for adjusting the position of the two-dimensional laser scanning sensor; and the upper computer is connected with a controller of transmission device and the two-dimensional laser scanning sensor through commutation lines. The longitudinal welded pipe welding seam protrusion detecting system based on laser scanning adopts a non-contact method for detecting types of welding seam protrusions of the welded pipe, and has the advantages of easy implementation, high adaptability, high precision and the like.

The invention discloses an electric vehicle wireless charging positioning system. The wireless charging positioning system includes a charging emitting end, a charging guide device, a charging positioning device, a charging receiving end, a positioning detection device, and a control device; the charging guide device generates a charging guide signal; the charging positioning device generates a charging positioning signal; the positioning detection device detects the charging guide signal and the charging positioning signal; the control device acquires a current operation parameter of an electric vehicle after receiving a charging start signal, generates a charging guide control signal according to the current operation parameter and the charging guide signal, generates a charging positioning control signal according to the charging positioning signal so as to position the charging receiving end and the charging emitting end; and the charging receiving end, the positioning detection device and the control device are arranged on the electric vehicle. The wireless charging positioning system is accurate in positioning, and can improve the charging efficiency. The invention also discloses an electric vehicle, a wireless charging emitting system, and a wireless charging positioning method.

The invention provides a UWB-based ship berthing assist method and system. The system includes a data acquisition platform, a data processing platform and a data display platform. The method includes a first step, in which a data acquisition module acquires UWM node information in real time and transmits the information to a data processing module; a second step, in which the data processing module processes the information transmitted in the first step and obtains the contours of a dock and a ship, the distance from the ship to the dock, the angle and relative speed and early warning information; a third step, in which a data storage module saves the above information in real time and meanwhile transmits the information through the data transmission module to the data display platform so that an external client can assist the ship in berthing at the dock; and the first to third steps are repeated for data real-time update to achieve dock berthing assist function. The invention assists the ship in berthing through UWB positioning technology and network technology, and has the advantages of low cost, wide coverage, high positioning precision and small impact of environmental factors.

The invention discloses an optical testing system used for a ship model water surface experiment and a testing method thereof. The system comprises a water pool, a water pool guide rail, a reference plane module, a ship model, a laser range finding module, a data collection and processing module, and a power supply module. The system and the method can be used for measuring transverse metacentric radiuses and longitudinal metacentric radiuses of the ship model and a real ship, can also be used for collecting and processing rolling and pitching hydrostatic experiment data of the ship model and the real ship, and is capable of measuring and displaying the transverse metacentric radiuses, longitudinal metacentric radiuses, transverse angular displacements, longitudinal angular displacements, rolling movement hydrodynamic coefficients and pitching movements hydrodynamic coefficients of the ship model and the real ship in real time. The system is convenient to install, high in measurement precision and free from the influences of environment magnetic fields, and compared with a testing system composed of an inclinometer or an attitude instrument, the influences of environment temperature are substantially reduced.

The invention discloses a vertical parallelometer. The vertical parallelometer comprises a marble platform. An L-shaped marble substrate is movably arranged on the marble platform. A guide rail is longitudinally arranged on a side surface, perpendicular to the marble platform, of the L-shaped marble substrate. A dial gauge capable of moving up and down is arranged on the guide rail. The dial gauge is horizontally arranged. A measuring head of the dial gauge is perpendicular to the side surface of the L-shaped marble substrate and is opposite to the side surface. According to the invention, the structure is simple, the design is reasonable and ingenious, the marble material is high in stability, environment factors have little influence on the marble material, and the marble material is easy to machine and relatively low in cost. The installation adjustment of the precise linear guide rail is relatively simple and convenient, an ordinary person understanding a little of the mechanical principle can carry out adjustment and self-correction to ensure the usage precision, and the vertical parallelometer is relatively practical. The integrated manufacturing cost is less than one tenth of that of an imported height instrument, so that the vertical parallelometer is rather economic and practical for occasions having usage requirements of verticality, parallelism and linearity.

The invention relates to a chemical industry wastewater comprehensive treatment method which comprises a pretreatment system, a primary biochemical system, an ozone treatment system, a secondary biochemical system and an after-treatment system. By adopting the two biochemical treatment systems, the iron carbon treatment system is arranged before the primary biochemical treatment system, and the ozone treatment system is arranged between the two biochemical treatment systems so as to greatly enhance the biodegradability of the wastewater, so that the treated wastewater can satisfy the direct discharge requirement. The method is suitable for comprehensive treatment of various types of chemical industry wastewater, has the advantages of low treatment cost, high technical stability, high pollutant removal rate, stable and standard effluent water quality and the like, and is suitable to be widely used in chemical industry wastewater treatment.