333results about How to "Avoid weakening" patented technology

The invention discloses an embedded guidance device of autonomous vehicle in automated transportation and an intelligent composite guidance method thereof, belonging to the field of autonomous vehicle guidance. An image processor, a master controller, a motion controller and an interface controller of the device of the invention are all connected to a CAN bus via an isolation transceiver, the device further comprises a picture pick-up system, an encoder, a memory, a driving system, a human-machine interface and the like. The composite guidance method thereof comprises network path traveling guidance based on radio frequency identification and single path tracking guidance based on visual identification, the former accomplishes path choice and junction turning of vehicle at intersections with multiple marked lines, the latter accomplishes precise movement of vehicle along guidance marked lines and precise location thereof at stop signs. The invention enriches acquiring ways of guidance information, improves processing speed of guidance information and enhances intelligent service ability of autonomous vehicle.

The invention discloses a method for identifying objectionable video content. The method comprises the following steps of extracting video key frames in a video to be detected; grouping the video key frames, wherein each group of grouped video key frames form a video shot which performs shot segmentation on the video to be detected; executing each segmented video shot; extracting movement feature information of the video shot, and determining whether the video shot is an objectionable video shot or not according to the extracted movement feature information; and determining whether the video to be detected is the objectionable video content or not according to the quantity of the determined objectionable video shots. According to the method for identifying the objectionable video content, the identification accuracy of the objectionable video content can be improved.

A hemodialysis and vascular access system comprises a subcutaneous composite PTFE silastic arteriovenous fistula having an indwelling silastic venous end which is inserted percutaneously into a vein and a PTFE arterial end which is anastomosed to an artery. Access to a blood stream within the system is gained by direct puncture of needle(s) into a needle receiving site having a tubular passage within a metal or plastic frame and a silicone upper surface through which needle(s) are inserted. In an alternate embodiment of the invention, percutaneous access to a blood stream may be gained by placing needles directly into the system (i.e. into the PTFE arterial end). The invention also proposes an additional embodiment having an arterialized indwelling venous catheter where blood flows from an artery through a tube and a port into an arterial reservoir and is returned to a vein via a port and a venous outlet tube distinct and distant from the area where the blood from the artery enters the arterial reservoir. The site where blood is returned to the vein is not directly fixed to the venous wall but is free floating within the vein. This system provides a hemodialysis and venous access graft which has superior longevity and performance, is easier to implant and is much more user friendly.

A computer system comprises hardware, BIOS and virtualizer monitor with at least one servo operation unit and at least one user operation unit both being operated on virtualizer monitor. It is featured as setting a safety consolidation agent module on servo operation unit and setting a safety consolidation module on user operation unit.

The present invention provides one kind of magnetic device and method for enriching oxygen in air and belongs to the field of oxygen making technology. The oxygen enriching device includes permanent magnet, air source, buffer, air conveying pipe, inlet transition section, outlet transition section, oxygen-rich air conveying pipe, valves, nitrogen-rich air conveying pipe and container casing. The method of enriching oxygen in air includes introducing air into one magnetic field space with opened boundary and gradient magnetic field, bounding oxygen molecules inside the magnetic field space to form oxygen enriching area, and leading out oxygen-rich air from the oxygen enriching area. The present invention has the advantages of simple structure, simple operation, low cost, low power consumption, long service life and wide application.

The invention belongs to the technical field of building structure engineering, and relates to a concrete-filled rectangular steel tube column-box girder full-bolt connection node. The concrete-filled rectangular steel tube column-box girder full-bolt connection node comprises a concrete-filled rectangular steel tube column, a box girder, an upper run-through clapboard, a lower run-through clapboard, a lower cover plate, a plurality of high-strength bolts, a plurality of connection plates and two shear plates. The upper run-through clapboard and the lower run-through clapboard penetrate through a concrete-filled rectangular steel tube column wall and are welded with the surrounding of the steel tube column wall of the concrete-filled rectangular steel tube column; the two webs of the box girder are welded together with the groove of the concrete-filled rectangular steel tube column via one shear plate respectively; the upper flange of the box girder is connected with the upper run-through clapboard by the high-strength bolts via the connection plates arranged in the box girder; the two webs of the box girder and the two shear plates are connected by the high-strength bolts via the connection plates arranged in the box girder respectively; and one end of the lower cover plate is connected with the lower flange of the box girder via the connection plate, and the other end of the lower cover plate is connected with the lower flange of the lower run-through clapboard via the connection plate. The invention provides a construction method for the node aforementioned simultaneously. The node and the construction method disclosed by the invention have the advantages of being convenient, fast, and easy to realize.

The invention provides a method and a device for rapidly storing and retrieving detailed tickets. By the method and the device, according to frequency of executing write operation, the detailed tickets are divided into files in three states, namely a dynamic detailed ticket file, a standard static detailed ticket file and a pure static detailed ticket file; the dynamic detailed ticket file is stored and retrieved in an address mapping linked list mode; the standard static detailed ticket file is stored and retrieved in a file system mode; and the pure static detailed ticket file is stored and retrieved in a database mode. Different detailed ticket files adopt different storage and retrieval modes, inherent defects and weaknesses of a single storage mode are effectively overcome, and the storage and retrieval efficiency is improved; and therefore, the performance of the system is improved.

The invention discloses local reinforcing equipment for a wind power generator unit foundation ring. The local reinforcing equipment comprises an original reinforced concrete foundation and a local reinforcing device. The local reinforcing device comprises a newly-poured reinforced concrete foundation, inner side steel clamping plate units and outer side steel clamping plate units. The multiple inner side steel clamping plate units are arranged on the inner wall of the upper portion of a foundation ring of the original reinforced concrete foundation in an annular mode, and the multiple outer side steel clamping plate units are arranged on the outer wall of the upper portion of the foundation ring in an annular mode; and the newly-poured reinforced concrete foundation is poured on the original reinforced concrete foundation. According to the local reinforcing equipment for the wind power generator unit foundation ring, loads which are borne by the foundation ring and generated by a draught fan in a running state are dispersedly transmitted through the inner side steel clamping plate units, the outer side steel clamping plate units, connecting steel bars, inner foundation negative bend steel bars and outer foundation negative bend steel bars, stress in the reinforced foundation ring is effectively reduced, fatigue damage to a draught fan foundation is reduced, and the service life period of the reinforced draught fan foundation is greatly prolonged. The invention further discloses a local reinforcing method for the wind power generator unit foundation ring.

A segmented packing ring 20 includes a number of first sealing segments 21, a number of second sealing segments 22, and a number of support segments 23, the support segments 23 and the second sealing segments 22 being arranged in an alternating successively abutting manner in the circumferential direction, and the first sealing segments 21 being arranged in a manner axially abutting the second sealing segments 22 and the support segments 23, and including a nose 24 extending axially on the second sealing segments 22, which is arranged in the circumferential direction between two adjacent first sealing segments 21.

The invention provides a one-side fastening bolt. The one-side fastening bolt comprises a screw and a conical head at one end of the screw; the conical head is integrated with the screw; the screw issequentially provided with a sleeve, a fixing gasket and a nut in a penetrating manner from the conical head end; and the sleeve and the fixing gasket are in clearance fit with the screw, the outer diameter of the sleeve is greater than the inner diameter of the fixing gasket, the sleeve is provided with a plurality of axial openings close to the conical head end, the smaller end of the conical head is clamped into the sleeve, and the outer diameter of the larger end of the conical head is greater than or equal to the inner diameter of the sleeve. On the premise of not reducing the installation speed and the joint strength, the one-side fastening bolt avoids the situation that a traditional method causes opening weakening of a connection section when completing bolt connection of closed-section components; and the one-side fastening bolt has the advantages of being convenient and fast to install, adapting to connection of the closed-section components, reducing the requirement for theout-of-plane height of an inaccessible side, guaranteeing the integrity of the connection section and the like.

The invention relates to a reinforced concrete frame-supporting column, in particular to a frame-supporting column with high strength steel bars and super high strength concrete. The frame-supporting column overcomes defects that axial compression ratio limits of ordinary reinforced concrete frame-supporting columns and steel reinforced concrete frame-supporting columns are low, protective covers fall easily under earthquake force, longitudinal bars and steel flanges are easy to bend, the columns are difficult to repair after an earthquake, and high strength steel bars and super high strength concrete cannot be applied, and defects that node constructions of steel reinforced concrete and steel pipe concrete frame-supporting columns are complex, the steel pipe concrete frame-supporting columns do not constrain concrete fully, and steel pipes are easy to bend. The frame-supporting column comprises longitudinal high strength steel bars, high strength closed stirrups and self-compaction super high strength concrete; and constraints include that stirrup spacing of concrete protective covers in whole concrete ranges from 30mm to 35mm, outer surfaces are aligned to outer surfaces of concrete frame-supporting columns, and the stirrup spacing of longitudinal high strength steel bars is constrained to range from 60 mm to 120 mm. By aid of constraining of closely-matched high strength welding closed stirrups on the whole concrete, mechanical properties of super high strength concrete are improved, anti-seismic properties of the column are improved, and the frame-supporting column has a wide application prospect in high-rise or super high-rise structures.