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963results about How to "Avoid crossing" patented technology

Track traffic synthetic monitoring system and method

The invention discloses a rail traffic comprehensive monitoring system and a method thereof, comprising a collecting platform, a comprehensive monitoring supporting platform and a monitoring control module which are sequentially connected through application interfaces. The invention also comprises a maintenance management module which is connected with the comprehensive monitoring supporting platform through the application interface. The method comprises online detection, filtration and malfunction grade judgement. The disposal is carried out according to different grades and different situations; a preparedness disposal is carried out if the disposal belongs to the first grade and, for the residual disposals, the maintenance strategy is determined and the expert database sub-module is updated according to the decision of experts; the equipment which is required to be maintained at once is maintained or waits to be maintained; a nominal disposal is firstly carried out during the maintenance and then malfunctions are isolated; the maintenance result is detected finally and the malfunction and maintenance condition are recorded. The invention can effectively reflects the healthy condition of equipment and gives out maintenance strategy in the comprehensive monitoring system, which leads the maintenance and operation scheduling to be integrated for management, implements high integration, transparence and informationization of maintenance operation, and effectively reduces construction cost.
Owner:SHANGHAI AUTOMATION INSTRAION CO LTD

Fault recognition and processing method based on satellite-bone bus

ActiveCN101788817AAvoid the phenomenon of working in failure mode for a long timeReduce riskProgramme total factory controlNormal valuesFault recognition
The invention relates to a fault recognition and processing method based on a satellite-bone bus. The method of the invention comprises the following steps: firstly, determining the fault type of a satellite, telemetry parameters related to various fault types and a range of normal values of the parameters; then setting the maximum times that the telemetry parameters related to the various fault types exceed the range of the normal values, and storing security instruction groups for removing faults corresponding to the various fault types in an instruction library; collecting the telemetry parameters of each device of the satellite by the satellite-bone bus at a set time, and when the telemetry parameters related to a fault type are abnormal and the abnormal times exceed the set maximum times, judging and entering the fault type; obtaining the corresponding security instruction group from the instruction library, and judging whether the security instruction group is executed; if the security instruction group is executed, clearing the corresponding abnormal count values of the telemetry parameters until the execution of the security instruction group is finished; and if the security instruction group is not executed, sequentially executing every security instruction in the security instruction group until the execution of the security instruction group is finished. The invention has the characteristics of good real-time performance and strong versatility.
Owner:AEROSPACE DONGFANGHONG SATELLITE

High-altitude glass cleaning device

The invention relates to the technical field of glass curtain wall cleaning equipment, in particular to a high-altitude glass cleaning device. Through rotation of a fan propeller installed on a high-speed motor which is arranged in an air outlet in the middle of a cleaning car, air at the bottom of the cleaning car is discharged at high speed, instantaneous vacuum is generated at the bottom of the cleaning car, and negative pressure difference is formed between the bottom of the cleaning car and the outside atmosphere, so that the cleaning car is attached to glass, and frictional force is formed between wheels and the glass; a driving motor of the cleaning car is provided with the wheels through a driving shaft, so that the driving motor is controlled to make the cleaning car move on a wall; a steering engine of the cleaning car is connected with the wheels through a steering shaft, so that the steering engine is controlled to make the direction of the cleaning car changed; brushes on a brush roller can be wetted out by water sprayed by an atomizing nozzle, the brush roller at the bottom of the cleaning car is driven by a brush roller motor to rotate, and the glass cleaning operation of the brushes is completed; a coiling roller drags the cleaning car through a lifting rope so as to control ascending and descending of the cleaning car, and the situation that the cleaning car falls off from a tall building due to abnormal conditions is further avoided.
Owner:罗文龙

Rotor unmanned aerial vehicle coverage search flight path planning method for polygonal region having no-fly zone

ActiveCN105973235AReduce the number of decomposition search unitsAvoid crossingNavigational calculation instrumentsNo-fly zoneGrating
The invention relates to a rotor unmanned aerial vehicle coverage search flight path planning method for a polygonal region having a no-fly zone, wherein the method comprises the steps: step 1, determining a coverage direction, wherein the direction from a polygon width-corresponding top point to edge is a coverage direction for realizing shortest-path polygon region coverage searching; step 2, transforming a coordinate, taking an X axis of a new coordinate system (OX'Y') as a coverage direction, and making an origin point of the new coordinate system (OX'Y') the same as an origin point of an original coordinate system; step 3, according to the transformed to-be-covered polygon region and obstacle, carrying out Boustrophedon searching unit decomposition; step 4, determining an alternative optical grating line search flight path set of each searching unit; step 5, determining the sequence and the flight path of each searching unit of the unmanned aerial vehicle based on a greedy strategy; and step 6, carrying out coordinate inverse transformation, transforming flight path points into flight path points in the original coordinate system through coordinate inverse transformation, and thus obtaining an original task searching flight path. The method ensures optimal property of understanding while reducing the time consuming of calculation.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Preparation and stabilization of high-purity xanthophyll ester and method for removing pollutant thereof

The invention relates to method for preparing and stabilizing high-purity lutein ester and removing pollutants thereof; at temperature of 20 DEG C to 70 DEG C, the particles of marigold flowers are dissolved in normal butane or acetone, stirred for 0.5h to 5h and filtered to obtain an extraction solution; an adsorbing agent is added into the extraction solution, stirred for 0.5h to 5h at temperature of 20 DEG C to 70 DEG C and filtered; a mother solution is collected and dried in vacuum, thus obtaining a concentrated substance. The concentrated substance is dissolved in isopropanol or butyl alcohol, stirred for 0.5h to 5h at temperature of 20 DEG C to 70 DEG C and slowly cooled to -10 DEG C to 10 DEG C after forming an even solution, and then filtered after 6 to 18 hours; the filter mass is added with an antioxidant after being washed by lower alcohol, and then dried to remove the lower alcohol, and thus the high-purity lutein ester is finally obtained. The method is characterized by obvious effect on removing pollutants, high product yield and low product degrading speed; and the lutein ester is further made into an oil soluble substance which has stronger stability, thereby solving the problem that the lutein ester product is easily oxidized and not easy for storing, etc.
Owner:INNOBIO CORP LTD

Novel metal back cavity dual-polarization broadband radiation unit

The invention belongs to the microwave antenna technical field and provides a novel metal back cavity dual-polarization broadband radiation unit. The novel metal back cavity dual-polarization broadband radiation unit has the advantages of low profile, high isolation degree, high polarization purity and wide bandwidth. According to technical schemes of the invention, the novel metal back cavity dual-polarization broadband radiation unit includes a radiation medium plate 1, a radiation medium plate 2, a radiation medium plate 3, a radiation medium plate 4 and a metal back cavity 5; a square radiation patch 6 is arranged at the upper surface of the radiation medium plate 1; a square radiation patch 7 is arranged on the upper surface of the radiation medium plate 2; a microstrip line 8 is arranged on the upper surface of the radiation medium plate 3; a microstrip line 9 is arranged on the upper surface of the radiation medium plate 4; the microstrip line 8 is orthogonal to the microstrip line 9; a shielding plate 10 is bonded to the lower surface of the radiation medium plate 4; two orthogonal rectangular slits are formed in the shielding plate 10; and the microstrip line 8, the microstrip line 9 and the shielding plate 10 form an one-input two-output power divider; and two orthogonal oblong blind holes are formed at the center of the upper surface of the metal back cavity 5.
Owner:LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA

Multiple-PCR detection method and kit for simultaneously detecting WSSV (white spot syndrome virus), AHPND (acute hepatopancreatic necrosis disease), EHP (enterocytozoon hepatopenaei) and IHHNV (infectious hypodermal and hepatopancreatic necrosis virus) in prawns

The invention belongs to the technical field of marine organism pathogen detection, and in particular relates to a multiple-PCR detection method and a kit for simultaneously detecting WSSV (white spot syndrome virus), AHPND (acute hepatopancreatic necrosis disease), EHP (enterocytozoon hepatopenaei) and IHHNV (infectious hypodermal and hepatopancreatic necrosis virus) in prawns. With the application of the multiple-PCR detection method, amplification of four pathogen DNAs can be simultaneously conducted in one time by virtue of special detection primers, namely WSSV F and WSSV R, AHPND F and AHPND R, EHP F and EHP R as well as IHHNV F and IHHNV R of the WSSV, the AHPND, the EHP and the IHHNV. The multiple-PCR detection method provided by the invention is convenient and rapid, low in detection limit, strong in specificity, high in sensitivity and high in accuracy rate and is capable of simultaneously detecting the white spot syndrome virus, the acute hepatopancreatic necrosis disease, the enterocytozoon hepatopenaei and the infectious hypodermal and hepatopancreatic necrosis virus in the prawns.
Owner:MARINE BIOLOGY INST OF SHANDONG PROVINCE

Node relation graph displaying method and system based on HTML5

The invention provides a node relation graph displaying method and system based on an HTML5. The method comprises the steps that a user inputs or a website server background returns graph data of a node relation graph, wherein the graph data is of a specific json format; a data input module obtains corresponding json graph data and stores the data temporarily; through utilization of new features of the HTML5, a graph drawing module is established and initial blank canvas is established; the json graph data is resolved through utilization of a JavaScript program resolver; the graph drawing module sets an initial position of nodes according to the resolved graph data and draws the nodes; the graph drawing module draws corresponding node connecting lines according to the drawn node graph and the corresponding graph data; a graph element event processing module sets mouse events of graph elements according to the graph data; and a graph output module outputs a graph to a webpage, and the node relation graph is displayed to the user. According to the method and the system, through utilization of a canvas function of the HTML5 and the mouse events of various graph elements supported by an html page, the node relation graph is efficiently and clearly displayed on the webpage through the graph data of the specific format.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Electromagnetic induction heating press-roller

The invention discloses an electromagnetic induction heating press-roller, which has an integral double-end supporting structure and comprises a rotating device and a fixing device, wherein the rotating device consists of an action roller and a rotating shaft which are connected; the rotating shaft inputs a rotating torque to drive the action roller to rotate; the fixing device consists of a fixed shaft, a sleeve arranged on the outer side of the fixed shaft, magnetizers and excitation coils; through the magnetizers and excitation coils segmentedly installed outside the sleeve, a magnetic airgap is formed between the outside end face of the fixed magnetizer and the inner circular face of the rotating action roller; the alternating magnetic field forms a circuit through the magnetizer, the air gap and the action roller metal; the magnetic field in the action roller forms an eddy current so as to uniformly heat the working face of the rotating action roller. Since a structure of axially segmented magnetizers and excitation coils is adopted, a magnetic circuit is formed on the working face metal of the heating roller only to avoid the magnetic circuit penetration of the non-heating working part and reduce the excitation current, and simultaneously prevent the machine parts from overheating; besides, the induction heating efficiency can be improved so as to control the axial temperature gratitude of the heating roller continently.
Owner:WUHAN UNIV OF TECH
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