57results about How to "Strong practical application" patented technology

The invention discloses a minimal-cost path and mixed path distribution method for alleviating track traffic congestion. According to the method, based on the traffic time of passengers, the congestion cost caused by congestion is comprehensively considered, the transportation cost is subjected to conversion, the Frank-Wolfe algorithm can be used for solving distributed traffic of track intervals, and then gathering and scattering of passenger flow can be achieved. By means of the method, the track traffic congestion can be effectively alleviated by changing paths of a small part of travelers and only slightly increasing the traffic time of a small part of travelers. By means of the mixed path distribution method, the average extra passenger number and the average transportation cost are both greatly lowered in a whole track traffic network by finding out nodes where the paths change through a shortest path method and a minimal cost method, and then the passengers are guided to select the minimal-cost paths in traffic flow guidance modes such as information publishing, so a shortest path state is changed into a minimal-cost path state.

The invention relates to a heart disease risk diagnosis method based on a deep convolutional neural network model. The method comprises the following steps: building a heart disease risk prediction model based on a deep convolutional neural network, and carrying out training, learning and testing; acquiring an electrocardiogram and a cardiogram of a user by using a wearable device; comparing the electrocardiogram and the cardiogram of the user, and identifying electrocardiogram feature points and cardiogram feature points of the specific event occurrence time of the cardiac impulse cycle; calculating a time interval value of any two feature points to obtain a plurality of feature values, and calculating a plurality of physiological indexes according to the plurality of feature values; outputting the heart disease risk probability corresponding to the physiological indexes through a DCNN model according to each input physiological index; calculating a heart disease risk comprehensive probability value of the user by adopting a formula; and judging the heart disease risk level of the user according to the heart disease risk comprehensive probability value. According to the invention,the risk probability of cardiac acute diseases of the user can be predicted in real time.

The invention relates to a holographic-display-oriented multichannel man-machine interaction work efficiency evaluation system and evaluation method. The system is composed of a holographic projection system, a multichannel interaction system, and a physiological signal acquisition and processing system. The holographic projection system includes a projector and a 180-degree holographic cabinet; the projector is arranged in front of the 180-degree holographic cabinet directly and is used for irradiating the 180-degree holographic cabinet. According to the invention, the system has high extensibility and can be provided with other input devices to complete testing and evaluation various interaction work efficiencies under holographic display; and for example, the system can be applied to multichannel multi-interaction work efficiency researches in environments like an aviation cockpit or a car cabin. In addition, the provided evaluation method is simple and can be implemented conveniently and rapidly; interaction can be carried out by selecting a multi-channel condition or a mouse interaction condition correspondingly according to an evaluation result, thereby reducing unnecessary fatigue on cognition of an interactive user. Therefore, the method and system have the great practical application significance.

The invention provides a data processing method and system, a service device and a storage medium thereof. The data processing method comprises the following steps: acquiring an estimated pose of a robot in a map at the current moment; matching the laser point cloud data with a map according to the estimated pose to obtain a plurality of map matching poses and a plurality of map matching scores corresponding to the plurality of map matching poses; arranging the plurality of map matching poses in a descending order according to respective map matching scores; selecting a part of map matching poses which are ranked in the front; and performing information processing on all the selected map matching poses to obtain a final map pose of the robot on the map at the current moment. According to the method, under the condition of ensuring that the operation speed is basically unchanged, the matching precision and effect of the point cloud and the map are improved.

The invention discloses an unmanned aerial vehicle intelligent distribution system and method based on the Internet of Things. The system comprises an unmanned aerial vehicle distribution network, a communication base station, an aircraft control end, a background management end and a user end. The unmanned aerial vehicle distribution network is composed of a plurality of unmanned aerial vehicles; the communication base station receives and forwards messages from the unmanned aerial vehicle, the aircraft control end and the cloud server; the aircraft control end is used for a pilot to control the unmanned aerial vehicle, display the information of a currently delivered order and complete the operation in the process of delivering an article by the pilot; the background management end is used for maintaining management information and data, and monitoring information of all current orders, delivery states of all orders and flight data of the unmanned aerial vehicle in real time; and the user side is used for a user to put forward an order, check a delivery state and complete a receiving operation.

The invention provides an experimental device for simulating carbon dioxide saturated fluid-surrounding rock interaction. A carbon dioxide gas source and a reaction fluid source are respectively connected with an intermediate container, a preheater is respectively connected with the intermediate container and a reaction kettle, and a chemical signal acquisition device is connected with the reaction kettle. A booster pump is arranged between the carbon dioxide gas source and the intermediate container. A constant-pressure constant-flow pump is arranged between the reaction fluid source and the intermediate container. Control valves are arranged between the carbon dioxide gas source and the booster pump, between the booster pump and the intermediate container, between the intermediate container and the preheater and between the preheater and the reaction kettle. A back-pressure valve is arranged between the reaction kettle and the chemical signal acquisition device. The invention further provides an experimental method. According to the device and the method, the process that the carbon dioxide saturated fluid reforms the surrounding rocks of strata with different depths and different positions in a carbon dioxide saturated fluid-surrounding rock system from the deep stratum to the earth surface can be simulated, and the reaction process is monitored in real time on line and recorded and stored.

The embodiment of the invention discloses a surveying and mapping band imaging method based on double-antenna SAR wide transmission and two narrow reception. The method comprises the steps of receiving a surveying and mapping instruction for a target region which comprises a first region and a second region adjacent to each other, transmitting a measurement signal to the target region through a first antenna, receiving a first echo signal of the first region through the first antenna, receiving a second echo signal of the second region through a second antenna, respectively imaging according to the first echo signal and the second echo signal to obtain a first surveying and mapping image and a second surveying and mapping image, and determining a surveying and mapping image of the target region according to the first surveying and mapping image and the second surveying and mapping image. The embodiment of the invention further discloses a surveying and mapping band imaging device basedon double-antenna SAR wide transmission and two narrow reception.

The invention provides an anti-droplet device, and belongs to the technical field of mechanical transmission devices. The anti-droplet device comprises a driven bracket and a driving bracket, whereinglass paper is connected between the driven bracket and the driving bracket; a horizontal paper cylinder shaft and a vertical paper cylinder shaft are installed in the driven bracket, and full paper cylinders wound with the glass paper are installed on the paper cylinder shafts; the horizontal paper cylinder shaft, the vertical paper cylinder shaft and a driving shaft are arranged in the driving bracket, an empty paper cylinder is installed on the paper cylinder shaft in the driving bracket, and the glass paper in the full paper cylinders penetrates out of the driven bracket to enter the driving bracket and is connected with the empty paper cylinder; in the driving bracket, motors are installed on the driving shaft and the vertical paper cylinder shaft, and the driving shaft and the horizontal paper cylinder shaft are in transmission through a synchronous belt wheel; under the control of a control cabinet, the motors can drive the driving shaft and the vertical paper cylinder shaft torotate, so that the glass paper is replaced, and droplet spreading is effectively inhibited; and an ultraviolet lamp is further arranged in the driving bracket to disinfect the glass paper, so that secondary spreading in the recycling process is prevented.

The invention relates to an underwater rock plug blasting gyroscopic distributed chamber method and belongs to rock plug body blasting methods in underwater rock plug blasting engineering. Presplit holes are drilled in the periphery of a rock plug according to the size of the rock plug body, the gyroscope plane position is worked out, the positions and explosive amount of an upper blasting cartridge Zupper and a lower blasting cartridge Zlower on the gyroscope axis are computed, the positions and the explosive amount of blasting cartridges Y1-Ym on the gyroscope plane are computed, layout of gyroscopic distributed chambers is finally determined, blasting of the chambers and a construction channel is conducted, and the blasting sequence and explosive time interval are set. The method has the advantages that the chambers are well arranged, the mutual relation of all the chambers is clear, the blasting mechanism and the action objects are specific, the structure is simple, and the method is easy to master; and the application prospects are wide, the gap between the large underwater rock plug blasting concentrated cartridge layout principle and practices is filled, and the method is a new breakthrough for underwater rock plug blasting chamber layout and has obvious practical application significances for underwater rock plug blasting design and construction.

The invention discloses a tension pay-off device. The tension pay-off device comprises a pay-off barrel arranged on a frame, the pay-off barrel is provided with a pay-off barrel rotating shaft and a pay-off barrel rim, the pay-off barrel rotating shaft and the pay-off barrel rotating shaft rotate together, and the tension pay-off device is further provided with a buffering force generating device, a supporting base and a brake device, the supporting base is used for supporting and fixing the buffering force generating device, the buffering force generating device is used for receiving power input by the pay-off barrel rotating shaft and applying buffering force to rotation of the pay-off barrel rotating shaft, the buffering force generating device comprises a buffering force generating device shell, an air pressure through hole is further formed in the buffering force generating device shell, a buffering force generating cylinder and a buffering force generating device piston capable of axially moving along the buffering force generating cylinder are arranged in the buffering force generating device shell, the tail end of the buffering force generating device piston extends out of the buffering force generating cylinder, and the brake device is pulled by the buffering force generating device piston to provide damping for a wheel rim of the pay-off barrel, so that the rotating speed of the pay-off barrel is controlled.

The invention discloses a single-image rain removing method based on deep learning and model driving. The method comprises the following steps: firstly, preprocessing image data to obtain a rain imageand a corresponding clean rain-free image; then establishing a single-image rain convolution dictionary model and a corresponding optimization problem; designing an iterative solution algorithm onlycontaining simple operation by utilizing a near-end gradient method, decomposing an iterative updating process into a plurality of sub-iterative steps and expanding the sub-iterative steps into network modules in a one-to-one correspondence manner, and establishing a single-image rain convolution dictionary network (RCDNet); the preprocessed rain map is transmitted to RCDNet for iterative training, the RCDNet is iteratively updated through a reverse optimization algorithm, so that the output result of the network gradually approaches the preprocessed clean rain-free map, and a training model is obtained; a to-be-tested rain map is prepared, the trained model is loaded, the rain map is input into the RCDNet for forward calculation, and the output result of the network is the rain-removed image corresponding to the tested rain map. According to the method, the rain removing performance of the current single-image rain removing technology is greatly improved, and obvious interpretabilityand generalization are achieved.

The invention relates to a method for preventing freezing damage in cherry florescence. The method comprises: spraying NaHS solution on cherries in florescence in low temperature condition, the optimal concentration of the NaHS solution being 0.075 mmol/L. The method reduces damages on organs of cherry flowers by low temperature, and through detailed experiment design and analysis, an optimal spraying stage and spraying concentration are made clear. The method has great practical application significance on reducing waterlogging damage and reducing loss.

The embodiment of the invention discloses a method for simultaneously detecting a plurality of polypeptide drugs in an egg, which comprises the steps of: mixing a mixed solution composed of methanol,acetonitrile and formic acid with an egg sample; performing centrifugation to obtain a supernatant containing an object to be detected; purifying the supernatant containing the object to be detected by a Qasis PRiME HLB solid phase extraction column; collecting a liquid; and after drying and re-dissolving, detecting the type and the content of the object to be detected in the filtered filtrate byliquid chromatography mass spectrometry. In the embodiment of the invention, the test sample is extracted by using the mixed solution composed of methanol, acetonitrile and 1% formic acid as an extracting agent, thereby effectively precipitating the protein, releasing the bonded residue and extracting the target drug. Then, the Qasis PRiME HLB solid phase extraction column is used to remove fats and phospholipids by a purification process. The extraction method has high extraction efficiency, short pretreatment time, a good purification effect and a high recovery rate.

The invention discloses a rubber O-shaped ring sealing performance test device and method, and the device comprises an upper pressing block (1) and a lower pedestal (2) which are installed in a matched manner, the upper pressing block (1) and the lower pedestal (2) are fixed through a fastener (3), a rubber O-shaped ring (4) is arranged between the upper pressing block (1) and the lower pedestal (2), and a compression cavity (5) is formed among the upper pressing block (1), the lower pedestal (2) and the rubber O-shaped ring (4); the upper pressing block (1) and the lower base (2) are both made of an integrally-formed structure, and the upper pressing block (1) comprises a pressing plate (11) and a protruding block (12) fixed to the center of the pressing plate. The lower base (2) comprises a main body (21), and a flange plate (22) extending outwards is arranged on the outer side of the upper end of the main body (21); and the rubber O-shaped ring (4) is positioned on the flange plate (22). The method has the advantage of high detection precision.