165results about How to "Evenly screened" patented technology

The invention relates to an air flow screening device for micron-sized powder materials, belonging to the screening technical field of powder engineering. The device is formed by improving the existing boiling dryer as follows: a front exhaust main pipe of the existing dryer is divided into a front exhaust main pipe and a back exhaust main pipe, a sieve plate mesh box with a sieve inside is added between the front exhaust main pipe and the back exhaust main pipe to increase the space dimensions of a fluid bed so as to increase the area of the sieve, so that the effective drift diameter of the sieve is increased, and the pore diameter of the sieve can be changed; a blowback device is added to prevent the sieve from being clogged; a circulating device is added to circulate the powder back to the main cavity of the fluid bed; and a pneumatic transmitting and discharging device is added on the basis of the original exhaust system. The device overcomes the defects that the existing boiling dryer can be only used for millimeter-sized particle materials due to the small sieve area and large meshes of the existing boiling dryer and powder materials are piled on the sieve and clog the sieve to block or even disable the air exhaust so as to affect the normal operation of the air jet screening when a small-pore sieve is used in the existing boiling drier. And the invention is applicable to the screening of powder materials.

The invention discloses a CUDA (Compute Unified Device Architecture)-based panoramic video monitoring system. Firstly, overlapping regions among a plurality of video images are estimated with a phase correlation method, and SURF (Speeded-Up Robust Transform) feature points are extracted in the overlapping regions and registered, so that algorithm time is shortened, and subsequent mismatching is reduced. Secondly, a fusion algorithm combining an improved optimal fusion line and a multi-resolution algorithm is provided, so that edge jumping and ghost phenomena are eliminated, and the visual effects of videos are improved. Lastly, a GPU (Graphics Processing Unit) is used for accelerating at a fusion stage, so that the splicing speed is further increased. As proved by experimental results, real-time splicing of three paths of monitoring videos can be realized effectively, and a frame rate is up to 20 frames through the system. Compared with a conventional CPU (Central Processing Unit) version, the system has the advantage that the real-time requirement of video splicing can be met.

Disclosed is a context sensing-based intelligent mobile terminal field monitoring method. A monitoring system is arranged for monitoring. The monitoring system comprises a video acquiring end, a server end, and a video playing end, which are connected through a network. An intelligent mobile terminal acquires field video data and transmits the video date together with corresponding context data to the server end. The video playing end is connected with the server end through the network for checking videos and realizing the field monitoring. The method can allow real-time video acquisition and transmission at anytime and anywhere flexibly and conveniently and integrate context sensing information, such as filed video position information. Therefore, the interaction bottleneck is reduced; users do not need to classify the videos and add notes to the videos artificially; the searching and analyzing of the videos are facilitated; the system is enabled to have stronger adaptability; and the adoption of a mixed mode 3G mobile phone video transmission QOS strategy, the video quantity is good and the screen is smooth.

The invention provides a class synchronization system based on the wireless network. The class synchronization system based on the wireless network comprises a wireless router, an all-in-one computer, a mobile terminal and a server side. The method adopted in the class synchronization system comprises the monitoring step, the judging step and the outputting step. In the monitoring step, the picture information of a brush panel of the mobile terminal is monitored in real time, and a picture synchronization order is sent to the server side to request for the synchronous displaying. In the judging step, whether the picture of the brush panel changes or not is judged, wherein if yes, a screen synchronization processor packages the coordinate pixel points and the corresponding color values of the changing parts in real time and transmits the coordinate pixel points and the corresponding color values of the changing parts to the server side to be processed, and synchronization picture information is generated. In the outputting step, the synchronization picture information is output to the all-in-one computer to be displayed. The screen picture of the mobile terminal can be synchronized to the all-in-one computer to be displayed in real time, the consumption on the CPU, the internal storage and the wireless network flow is reduced, the speed and running efficiency are high, and the synchronization picture is fluent.

The invention discloses a rolling bearing early composite fault feature extraction method based on progressive VMD. The method comprises the steps of 1, installing an acceleration sensor near a rolling bearing to collect vibration signals during bearing operation; 2, decomposing the acquired vibration signal by using a progressive VMD to obtain a series of decomposed modes; 3, screening the modesobtained after decomposition by using a dual screening criterion based on kurtosis and an energy fluctuation factor to determine a fault mode, and realizing reconstruction of the fault mode; 4, initializing the range and the search step length of the balance parameter alpha, repeating the step 2 and the step 3 for different alpha values, calculating the EFF value of the reconstruction mode, the maximum EFF value corresponding to the optimal alpha value, and then determining the reconstruction mode under the optimal alpha value; and 5, demodulating the reconstructed mode by using TEO to obtaina TEO spectrum, and obtaining a diagnosis result in combination with the bearing related fault characteristic frequency. On the basis of an EEMD recursion idea, the invention provides a progressive decomposition VMD method.

The invention discloses a rewound video generating method and device and a play device, and relates to the field of videos. The method comprises that frames of an original video are grouped according to key frames, and each frame and a non-key frame thereafter form one group; the video frame groups are decoded in inverted time sequence, the last group is decoded at first, and the first group is decoded at last; and video images of all the decoded frames are recoded, the last group of the original video is coded as the first group of a new video, the last but one group of the original video is coded as the second group of the new video, and the rest can be done in the same manner. The new video generated finally is a rewound video relative to the original video. The sequence of frame videos in each video frame group is kept unchanged. Thus, the generated rewound video is complete in frames, clear and coherent, and the realization method is rapid.

The invention discloses a method for converting an actual scene into a virtual scene in a computer and reproducing it, in particular a method for enabling users to visit scenic spots through a multimedia system: take multiple panoramic photos in the real area, and convert the obtained All the panoramic photos are packaged to obtain the virtual scene data of the real area. When the user accesses the virtual scene data through the special browsing software, he will get a completely real and immersive feeling.

The invention belongs to a three-dimensional panoramic technology, and provides a method for browsing a panorama by a hot spot in three-dimensional panoramic space. The method comprises the following steps of: 101, establishing a system operation environment; 102, computing the radius of a three-dimensional panoramic spherical model; 103, establishing the three-dimensional panoramic spherical model; 104, wrapping a two-dimensional panorama on a three-dimensional sphere; and 105, forming the three-dimensional panorama. The invention also provides a three-dimensional panorama browsing system. The system comprises a three-dimensional panorama browsing module and an editing management module. The method and the system show the three-dimensional panorama, have real and smooth picture frames, and can be widely used for the three-dimensional panorama show of any scene.

The invention discloses a portable receiver of external TV signals based on DVB-H, comprising an antenna, a video signal tuned unit, a video signal demodulation unit and an output unit which are connected in order; the video signal tuned unit tunes DVB-H digital TV signals received by the antenna and transmits the signals to the video signal demodulation unit; the video signal demodulation unit demodulates received tuned signals processed by the video signal tuned unit and compacts into video streams; the output unit is used for outputting the video streams to an external portable terminal. The invention does not need any structure changes of prior portable terminals such as mobile phones, only needs a play software to be installed, then is connected with the output unit of the external TV signal portable terminal based on DVB-H, mobile phone digital TV programs provided by traders can be received.

The invention provides a distributed medical diagnosis system to optimize video data transmission speed of mobile terminals such as cell-phones and to improve medical diagnosis efficiency. The distributed medical diagnosis system comprises a server receiving module, a server diagnosis module, a server screening and transmission module and a server displaying module as well as a remote control information interaction module. By the use of the distributed medical diagnosis system, a remote patient can acquire remote medical image diagnosis server with high efficiency through carrying an intelligent mobile terminal (including but not limited to intelligent cell-phones and tablet PCs) and medical workers can stay at a mobile work states; and medical workers can also utilize intelligent mobile terminals to provide remote medical diagnosis service. Besides, smooth images can be achieved without the sacrifice of resolution and image effects during the use of the intelligent mobile terminal, such as the cell-phone, so image transmission efficiency can be improved.

The invention discloses a hansenula polymorpha mutant and application of an expression vector of the hansenula polymorpha mutant to recombinant protein expression, and aims to provide a genetically stable hansenula polymorpha mutant and application of an exclusive expression vector of the genetically stable hansenula polymorpha mutant to recombinant protein expression. The hansenula polymorpha provided by the invention is a mutant stable strain in which the expression of orotidine-5-phosphate decarboxylase gene (UPA3) is blocked. The exclusive expression vector contains a hansenula polymorpha autonomously replicating sequence and a plurality of selection markers, so that the exclusive expression vector can be stably integrated into the strain at a high copy number. The mutant strain and the expression vector can efficiently express a hepatitis B surface antigen, can be correctly assembled into VLP (Virus Like Particles), are simple in process, are very suitable for industrial production of expression proteins, and have great practical application values.

The invention discloses an efficient powder screening device for chemical raw materials. The efficient powder screening device comprises a bottom plate, a supporting plate device, a recycling device, a first frame body device, a first filtering device, a second frame body device, a second filtering device and a feeding device. A first supporting rod, a first transverse rod, a second transverse rod, a third transverse rod, a first vertical rod, a fourth transverse rod, a second vertical rod and a fifth transverse rod are arranged on the bottom plate. The supporting plate device comprises a supporting plate, a second supporting rod, a first concentration block, a second concentration block and a first oblique rod. The recycling device comprises a first limiting rod, a first filtering net, a first spring, a recycling box, a positioning block, a first push plate, a first push rod, a first positioning rod, an electric cylinder and a first support. The first frame body device comprises a first frame body, a first fixing rod, a first wheel, first bristles, a first limiting block, a second fixing rod, a first bending rod, a first vertical plate, a third fixing rod and a second bending rod. The efficient powder screening device can be used for sufficiently screening chemical powder.

The invention relates to the technical field of handheld mobile devices, in particular to a calling method for orientation sensors of handheld mobile equipment. According to the method, when applications requiring calling of the orientation sensors are first-type applications, gyroscopes are turned off, orientation information, instead of angular motion information, is obtained, and only basic direction indication requirements are met, so that the reaction speed of the equipment is improved, and direction indication effects can be rapidly obtained by the first-type applications. When the applications calling the orientation sensors are not the first-type applications, the gyroscopes are not turned off, and the angular motion information of the gyroscopes is obtained, so that screen effects during rotation of the equipment are improved according to the angular motion information of the gyroscopes, and screens are smooth. Accordingly, different calling methods are used for different gyroscope sensors on account of different applications, relevant sensing data can be obtained by each application according to characteristics of the application, operation effects of the applications are in accordance with user requests, and the user experience is effectively improved.

The invention provides Chinese herb cleaning and screening equipment in the mechanical field. The Chinese herb cleaning and screening equipment comprises a bottom plate, a supporting plate device located on the base plate device, a first filtering device located below the supporting plate device, a frame body device located above the supporting plate device, a pushing device located in the frame body device, a lifting device located above the pushing device, a motor device located on the right side of the frame body device, a baffle device arranged on the supporting plate device, and a second filtering device located on the right side of the baffle device. The Chinese herb cleaning and screening equipment can effectively screen Chinese herbs and is high in screening efficiency; meanwhile, flowing of water can be promoted, water is promoted to sufficiently make contact with Chinese herbs, and thus the cleaning effect is ideal; and by promoting vibration of a filter screen, blockage is prevented, screening can be conducted smoothly, and Chinese herb processing efficiency is improved.

The invention discloses a building sand screening and cleaning device. The building sand screening and cleaning device comprises a bottom plate, wherein a left support and a right support are separately arranged on two sides of the top of the bottom plate; a water storage tank is arranged on one side of the right support; a feed hopper is fixed at an end of the left support; a screening frame is arranged below the feed hopper; a collection frame is arranged below the screening frame; a horizontal supporting plate is fixed on the top of one side of the right support; a rack frame is arranged above the supporting plate; a driving motor is arranged on the inner side of the rack frame; an incomplete gear is fixedly connected to an output shaft of the driving motor in a sleeving manner; the incomplete gear is connected with the rack frame in an engaged manner; a first sliding track is arranged on the top of the end, which is close to the screening frame, of the supporting plate; a first sliding block which is in sliding connection with the first sliding track is fixed on the bottom of the rack frame; a first connecting rod is fixed on the outer wall of the side, which is close to the screening frame, of the rack frame; and the other end of the first connecting rod is fixedly connected with the screening frame. The building sand screening and cleaning device is convenient and rapid to use, high in screening speed, uniform in screening, thorough in screening and good in cleaning effect.

The invention relates to screening equipment, in particular to coal mine smashing and screening equipment. The coal mine smashing and screening equipment which can uniformly screen coal mine powder and can be conveniently operated by workers is provided by the invention. The coal mine smashing and screening equipment comprises a feeding valve, a feeding hopper, a motor, a screening frame, a detachable blowing mechanism, a rotary shaft, a bearing seat, a thick powder crushing rod, a thick powder filtering net, a thin powder crushing rod, a thin powder filtering net, a discharging hopper, a supporting rod, a recycling frame, a collecting frame, a cover plate and a mounting plate, wherein the recycling frame is fixedly connected to one side of the top of the mounting plate; the cover plate ishinged to one side of the recycling frame; a discharging hole is formed in the top of the recycling frame; and the collecting frame is put inside the recycling frame. By means of the coal mine smashing and screening equipment, the effects that the coal mine powder is uniformly screened, and operation is convenient for the workers are achieved.

The invention discloses a preparation method for asphalt concrete. The preparation method comprises the following steps of I, adding heated asphalt into a shell, and controlling a rotating shaft to drive a stirring rod located in the shell to stir asphalt; II, putting gravel blocks into a screen mechanism and controlling a push plate to move leftward to push the gravel blocks to a screen, whereinthe push rod moves leftward to connect a belt wheel assembly connected to the screen mechanism to the rotating shaft; III, controlling an electric push rod to extend out continuously, wherein the electric push rod drives the push plate to push large stones plugged on the screen leftward, and the large stones are crushed by a rotating stone crushing knife and further fall into asphalt through the screen; IV, controlling, by the push rod, the screen mechanism to stop rotating when the gravel blocks are fully screened; and V, continuously controlling the stirring rod to stir asphalt mixed with the gravel blocks for five minutes to prepare the asphalt concrete. The preparation method for asphalt concrete is not only simple to operate, but also can prepare asphalt concrete quickly.

The invention provides a network virtual-role synthetic system and method. The system comprises a resource manager, an equipment position loader, a synthesizer and a render, wherein the resource manager is used for providing equipment position resources of virtual roles; the equipment position loader is connected with the resource manager and used for loading the equipment position resources of the virtual roles; the synthesizer is connected with the equipment position loader and used for synthesizing equipment positions of virtual roles in the selected direction and cutting the synthesizing result into frame data; and the presenter is connected with the synthesizer and used for playing the frame data. The method comprises the following steps: loading the equipment position resources of the virtual roles; synthesizing the equipment positions of the virtual roles in the selected direction and cutting the synthesizing result into the frame data; and playing the frame data. The network virtual-role synthetic system and method can increase the synthesizing efficiency, enable the animation of the virtual roles to be smoother and meet the experience requirements of users.

The invention discloses a low-salt-resistant penaeus monodon new species breeding method. Low-salt-resistant penaeus monodon species can be better sorted through breeding in a salinity regulation modewithin multiple stepped ranges. According to the low-salt-resistant penaeus monodon new species breeding method, a stepped range mode, rather than a mode in which a certain low salinity value maintains invariable fundamentally, is adopted, in this way, the process in which the salinity of a breeding water body changes to a low salinity direction naturally can be simulated better, and thus the sorted penaeus monodon species has higher capability to adapt to the situation that the salinity is influenced because river water rises suddenly or rainstorm is heavy in a natural state.

The invention relates to an agricultural product screening machine for screening agricultural products according to the size and more detailedly relates to a following agricultural product screening machine. According to the agricultural product screening machine, eight screening rollers are arranged on the upper face of a screening machine body for screening roller arrangement, four screening passages are formed between the screening rollers accordingly, and the rollers making contact with the screening passages are mounted in the mode that the rollers rotate form the bottom to the upper portion, so that damage caused due to frictional resistance of screened bodies passing through the screening passages and the screening rollers is minimized; and separation prevention pieces formed by brushes are arranged on the sides of the screening passages, connecting pieces assembled in an X shape are connected with supporting pieces used for supporting shaft seals of the screening rollers so as to enable left screw nuts and right screw nuts on the two sides to move inwards and outwards so that the distances of the screening passages can be simultaneously adjusted, the distances of the screening passages are precisely and rapidly adjusted accordingly, the agricultural products passing through the screening passages are prevented from breaking away from the screening passages, and thus efficient and safe screening is achieved.