416results about How to "Unobscured" patented technology

The invention discloses a personalized research direction recommending system and method based on themes. Paper topics read by users and preference of the users for related paper topics can be obtained through the recommending system according to all the papers read by the users and according to the themes of the papers obtained when training is conducted through a theme model training module, therefore, the recommending system can recommend a new research direction for the users to widen the vision of the users. The innovation key of the personalized research direction recommending system and method based on the themes is to construct a three- layer graph model according to the relationship between the users and the papers and the relationship between the papers and the themes, to calculate preference values of the users for the themes according to the three-layer graph model, to obtain a user-theme preference weight matrix, and to calculate similar user set between the users and other users based on the weight matrix. The preference degree of the themes which are not touched by the users is predicted according to the similarity value of the similar users in the similar user set and according to the preference values of the similar users for the themes, and the research direction, namely, the research theme, is recommended for the users according to the prediction result.

The invention discloses a track fault detection method and system based on infrared thermal imaging and computer vision. The method comprises the following steps that: an unmanned aerial vehicle carries out tram rail image collection; a ground station receives image data of a high-definition camera and image preprocessing is performed; multi-threshold rail region segmentation is performed twice on a dark region in a trench a bright region outside the trench and the rail region is segmented based on distance features of the adjacent bright and dark regions to extract a rail image; graying is performed on an infrared thermal image and a high temperature region on the rail is extracted based on a relative temperature difference method; the preprocessed image is superposed with a rail detection window and masking is performed to obtain a region of interest, and edge closing determination and filling are carried out on the region of interest to obtain a communication region, and the communication region is screened to obtain a suspected rail foreign object; the suspected rail foreign object is inputted into a BP neural network for identification to obtain a foreign object classification result. According to the invention, rail foreign object identification and temperature detection are performed in real time to reduce the accident occurrence rate of rail transit and improve the operation safety of the tram.

This invention relates to a slide outer rotary multifunction door and window, which contains frame and a number of window wings, wherein frame having three axle rail on top and bottom frame, said window wings having end convex, edge, lock fastener, connector, three axle roller, fastener handle and active latch, it also can be installed with active castor on lower end of wing for being used as door. Said invention has advantages of easy open at any angle, safety, reliable and fine sealing performance.

The invention provides a self-adaptive AGV (Automatic Guided Vehicle) visual navigation sight adjusting device and a trace tracking method. The device comprises a camera, a rotary support, a steering engine and a support frame, wherein the support frame is fastened on an AGV body, the steering engine is fixed on the support frame and is fixedly connected with the rotary support, the camera is fixed on the rotary support and is located on a middle axis in front of the AGV body and the camera can be driven to adjust a sight gear angle by the steering engine. According to the device provided by the invention, the sight angle of the camera can be automatically adjusted according to the speed of the AGV body, the camera view is opened, and the navigation and location is precise to control, therefore the working efficiency can be improved.

The invention relates to the radio-positioning technical field, particularly a millimeter-wave time-division passive frequency modulation multi-channel automotive anti-collision radar, which is realized through the following steps: adopting the full-phase parameters to receive/transmit reference signals; asynchronously controlling the time division and the time sequence; watching the targets which are prone to collision on the w surface in an omni-directional manner through DSP cyclic scanning wave beams by a quasi-optical dielectric lens antenna circular array; controlling the time division SAW multi-channel passive frequency modulation through road condition cameras, an own vehicle speed, a GPS signal MCU; sending to antenna array to transmit through an up-converter, an amplitude limiter, T/R3, a frequency multiplier and a power amplifier, T/R2, an isolator and a wave beam switch; filtering the returning wave in a conjugating and matching manner with the transmitting SAW through the antenna array, the wave beam switch, the isolator, R/T1, the low-noise high amplifier, a down-converter, a medium amplifier, the time-division circuit and the SAW multi-channel signals; processing and controlling DSP and MCU; controlling the false-alarm when encountering a plurality of road barrier targets DSP and confirming the position, the distance and the relative speed; displaying the three-dimensional image on a CRT, wherein the closer the vehicle gets to the target, the higher the resolution power is; identifying the nearest distance to the vehicle; giving an alarm when the distance is smaller than the safety distance; and intelligently avoiding the barriers or reducing or braking if the distance is close to a risk distance, wherein the control is determined based on the actual condition of the road surface environment combined with the own vehicle speed and the GPS data, thereby improving the travelling safety.

The invention provides a multi-working-face contact network work vehicle which comprises a vehicle frame. A vehicle body I and a vehicle body II are arranged at the upper end of the vehicle frame. The vehicle body I and the vehicle body II are respectively provided with a cab, a vertical three-platform working mechanism which can move in a left and right mode is arranged between the vehicle body I and the vehicle body II, and a bow net detection device and a line lifting and stirring device are arranged on the vehicle body I. A power truck, a non-power truck and a power system are arranged at the lower end of the vehicle frame, and the power system is arranged between the power truck and the non-power truck. The power system comprises a diesel engine, a hydraulic transmission case and a transfer case. Power which is output from one end of the diesel engine is delivered to the power truck through the hydraulic transmission case, and power which is output from the other end of the diesel engine is delivered to the transfer case through an elastic coupler. The number of the working platforms is three, simultaneous operation of multiple working points is achieved, the working efficiency is high, the line lifting and stirring device and the bow net detection device can be combined with the three-platform working mechanism to achieve line stringing and laying up work, detection work and maintenance work of a contact network, and the multi-working-face contact network work vehicle is complete in function.

The present invention discloses a road snow remover, and relates to the field of construction machinery. The road snow remover comprises a body used for melting, containing and discharging snow; a snow removal mechanism positioned at the front end of the body and provided with a first snow removal device and a second snow removal device, a conveying toothed belt device for conveying the snow on the snow removal mechanism to the body, and a lifting mechanism installed between the snow removal mechanism and the body and used for adjusting the distance between the snow removal mechanism and the ground. The road snow remover provided by the present invention is simple in structure, convenient to operate, especially high in snow handling capacity, high in efficiency and good in snow removal effect.

The invention relates to a cleaning device, in particular to a rapid cleaning device for waste building iron nails. Providing the rapid cleaning device for the waste building iron nails is the technical purpose needing to be achieved, and the rapid cleaning device is high in iron nail cleaning speed. To achieve the above technical purpose, the rapid cleaning device for the waste building iron nails is provided and comprises a first sliding rail, a first rack, a first supporting rod, a support, a first sliding block, a sector gear, a servo motor, a winding wheel, a stay wire, a second rack, a second sliding block and the like. The first sliding rail is located on the left side of the first supporting rod and provided with the first sliding block, the first rack is arranged at the right end of the first sliding block, and the lower end of the first rack is connected with the connecting rod. According to the rapid cleaning device, the iron nail cleaning speed is high; abrasive sand is arranged so that the iron nails can be cleaned more thoroughly; and a collecting groove is arranged so that people can more conveniently collect the iron nails cleaned thoroughly.

The invention discloses an eyeball tracking device, a head-mounted device and an eye image acquisition method. The eyeball tracking device includes a light source unit configured to emit a light beamtoward a user's eye; a beam splitter unit configured to be capable of transmitting light of at least a first wave band and reflecting light of a second wave band, wherein the light beams emitted by the light source unit are reflected to the beam splitter unit through the eyes of the user; and an image acquisition unit used for acquiring eye images. By using the eyeball tracking device, the qualityof the acquired eye image can be improved on the basis of not shielding the sight line of the user.

The invention provides a cab structure of an urban rail. The cab structure comprises the side beams of a bottom frame, the vertical column of a reverse L-shaped cab door, floor on a front end, the side beam of a top cover and the vertical columns of a side wall door; both ends of the floor on the front end are connected with the side beams of the bottom frame; the vertical columns of the side wall door are connected with the side beam of the top cover and the side beams of the bottom frame; a vertical column on the front end, the cross beam of the floor, a support side beam and an assembly structure in the shape of Chinese character Mu are also arranged; the cross beam of the floor is arranged on the floor on the front end; the lower end of the vertical column of the reverse L-shaped cab door is connected with the side beams of the bottom frame, and the upper end of the vertical column is connected with the end surface of the side beam of the top cover; the vertical column on the front end is connected with the cross beam of the floor and the front cross beam of the assembly structure in the shape of Chinese character Mu; the rear cross beam of the assembly structure in the shape of Chinese character Mu extends towards both ends and is connected with the side beam of the top cover; one end of the support side beam is connected with the vertical column of the reverse L-shaped cab door, and the other end of the support side beam is connected with the assembly structure in the shape of Chinese character Mu. According to the cab structure of the urban rail, the structural shape is simple, and the strength and rigidity are high; interfaces among all structures of the cab and between the structures and the bottom frame, a side wall and the top cover are simple, the process technique is good, and the manufacturing cost is reduced.

The invention provides a vehicle backup image system, which comprises a camera. The camera is used for acquiring video signals. The system additionally comprises a main controller, an image processing module, a display control module, a display screen and a gyroscope module. The image processing module is used for processing the video signals acquired by the camera. The display screen is arranged on a steering wheel and is used for displaying the processed video signals. The gyroscope module is used for transmitting the acquired signals to the main controller. The main controller controls the display control module to work. The display control module controls the screen display of the display screen. By displaying backup images on the steering wheel in real time and by adopting a gyroscope technique, the vehicle backup image system has the advantages that the displayed images are not rotated with the steering wheel, a driver can conveniently and more intuitively observe the situation of a road behind the vehicle in the backup process, the time of shifting sight when the drive sees the backup images is reduced and the number of accidents is reduced.

The invention discloses a suspended solar power station, which comprises a floating tube and a horizontal orientation regulator, wherein the floating tube is provided with a water containing inner cavity, a solar panel assembly is arranged on the upper end surface of the floating tube, one side edge of the floating tube is connected with a suspension base body through a pitching rotating shaft, a plurality of water injection cavities with intervals are sequentially arranged in the direction of the inner edge of the floating tube vertical to the axial line of the pitching rotating shaft, the floating tube can rotate around the pitching rotating shaft through regulating the water quantity in each water injection cavity, and the tracking on sun light rays in the weft direction by the solar panel assembly can be regulated. The horizontal orientation regulator drives the suspension base body and the floating tube for simultaneously rotating on the water surface for regulating the tracking on the sun light rays in the warp direction by the solar panel assembly to maintain the vertical state of the solar panel assembly and the sun light rays. The invention can be established on the water surface, the ground resources can be saved, and the water surface can be fully utilized. Compared with the power station using the land, the invention has the advantages that a regulation system is driven by fluid, the friction resistance is small, no mechanical abrasion exists, and the shock resistance performance is good.

The invention provides a cleaning device, a cleaning robot and a control method of the cleaning device, and belongs to the technical field of cleaning equipment. The cleaning device comprises a brushdisc, a water absorption rake and a control unit; the brush disc is located at the front end of the water absorption rake in the advancing direction of a cleaning path; when the brush disc is in a lifting state, the control unit can drive the brush disc to incline towards the side away from the ground in the direction opposite to the advancing direction. When the brush disc is in the lifting state, the brush disc can incline towards the side away from the ground in the direction opposite to the advancing direction, therefore, operation space on the peripheral side of the bottom face of the brush disc can be increased, the brush disc can be prevented from blocking the view of a worker, and the difficulty of replacing or maintaining the brush disc can be reduced.

The invention discloses an operation pillow for a thyroid disease. The operation pillow comprises a bottom plate; a jugalar plate is arranged on the bottom plate; a first airbag is arranged on the jugalar plate; the operation pillow for the thyroid disease enables a patient to more comfortably lie through the first airbag and a second airbag; as the second airbag is designed into an elliptical column shape, the position of a neck is heightened, so that a doctor is wider in visual field during operation; a first electric telescopic rod is arranged on equipment, and a head of the patient can be moved at any moment through the first electric telescopic rod, so that the patient can be more comfortably operated; a second electric telescopic rod is also arranged on the equipment, and the head of the patient can be clamped through the second electric telescopic rod to prevent the patient from moving back and forth during operation; a table lamp is also arranged on the equipment, and the doctor can see more clearly during operation through the table lamp; the equipment is simple in structure, and the height of the surgical pillow for the thyroid disease can be freely adjusted; meanwhile, the best visual field during operation can be displayed.

The invention provides a sightseeing cabin of a tourist vehicle. The sightseeing cabin comprises a sightseeing cabin body, a sightseeing cabin floor, seats, rotary supports and a sightseeing cabin self-balance mechanism. The sightseeing cabin self-balance mechanism comprises a motor, a worm gear and worm speed reducer, a coupling, pinions, bearing blocks, a transmission shaft, chain wheels and an electromagnetic clutch; the motor is fixed onto the sightseeing cabin floor of the sightseeing cabin; the motor is coaxially connected with the worm gear and worm speed reducer; an output shaft of the worm gear and worm speed reducer is coaxially connected with the coupling, the bearing block c, the electromagnetic clutch, the bearing block b and the small chain wheel; the large chain wheel is connected with the small chain wheel by duplex chain wheels; the sightseeing cabin is mounted outside a tourist vehicle wheel flange. The sightseeing cabin has the advantages of high passenger capacity, smoothness in rotation, riding comfort, wide vision and passenger safety. Besides, the electromagnetic clutch can be separated when equipment is powered off, accordingly, the levelness of the floor can be maintained by counterweights and the gravity of the sightseeing cabin, and rescue can be facilitated.

The invention relates to a surgical tissue closing device with a visual function, comprising a handhold device and a signal receiving and playing system, wherein the handhold device comprises a drive device used for supplying closure and firing needed power, a tissue closing assembly used for implementing a surgery by making use of the power supplied by the drive device, a micro camera used for collecting video signals, a signal processing device used for converting the video signals collected by the micro camera to digital signals and a signal sending device used for sending the digital signals; and the signal receiving and playing system comprises a signal receiving device used for receiving the digital signals sent by the handhold device, a signal processing device used for converting the received digital signals to video signals and a display terminal used for playing the video signals. The invention obtains the video signals through the micro camera arranged on the handhold device and transfers the video signals to a video receiving and playing system, thereby realizing real-time monitoring in the operation process of the surgery and assisting accurate location.

The invention discloses novel aerial rail transportation, and particularly relates to a cable-suspended type rail locomotive. The technical scheme includes that elevated steel cables are taken as cable-suspended type rails to bear a locomotive; a carriage of the locomotive is similar to that of a vehicle, and follow-up sheaves clamped on two main weight-bearing steel cables aerially arranged are mounted above the outer side of the carriage; two auxiliary steel cables are set up below the main weight-bearing steel cables, concave steel plates are mounted longitudinally along the auxiliary steel cables, racks are paved inside the concave steel plates, a gear driving wheel is mounted on the lower portion inside the carriage of the locomotive, and gear teeth of the gear driving wheel are meshed with gear racks mounted inside the concave steel plates on the two auxiliary steel cables under the carriage of the locomotive. By adopting a motor as a power source and driven by the motor, a driving pulley of the motor drives the gear driving wheel coaxially arranged with a driven pulley to rotate along the gear racks, the gear driving wheel and push rods connected with a bearing shaft fixed on a chassis of the locomotive push or pull the locomotive to drive along cable-suspended type rails put up aerially.