138results about How to "Deep understanding" patented technology

Provided is a ground automatic detecting and scene height calculating method based on a depth image. If h obtained through calculation of a certain point meets the condition that H1<h<H2 and d<Thsmooth, the point is judged to be on the ground. All points meeting the condition are extracted, a region with the largest area is found through a binary image labeling method, and the region is identified to be the ground. After the ground is judged, l3 of the ground region in an L_matrix is averaged to obtain indication of a plane normal vector under a camera coordinate system. An average value of the ground region h is the installing height of a camera. For any image point, a height calculation formula is as follows. By means of the method, the depth image is used for conducting ground automatic detecting, and the height between all the points and the ground is calculated in the scene according to a ground detecting result. The height information enables an intelligent monitoring system and an intelligent robot to understand the scene deeply and thoroughly.

The invention provides a floor water inrush early-warning system and method in coal mining, which belongs to the field of mine hydrogeology and mining engineering. The early-warning system comprises a microseismic monitoring system, a numerical value calculation system, a virtual reality system, a network transmission system and an early-warning forecast analysis center. The spatial array arrangement of a sensor network in microseismic monitoring system is the key to affect the reliability and the effectiveness of microseismic monitoring data. Hypocenter positioning errors are reduced. In a virtual three-dimensional geological environment, geological bodies can be visually, clearly and accurately displayed, which helps an analyst to deeply understand and analyze the formation, evolution and development of the geological bodies in an engineering area. Inspiration and help are provided for further revealing the geometric shape of hidden geological structures, determining the movement law of faults, clarifying stratum contact relation and intensively studying geography laws. Through the seamless connection and display of the microseismic monitoring data, stress analysis results and a three-dimensional geomechanical model, floor water inrush is monitored and early-warned in real time.

The invention discloses a query representation and hybrid retrieval model construction method based on a context sensing theme. The method includes the following steps that firstly, a pseudo relevance feedback document of query is obtained on the basis of a keyword set of query, and context related to query is selected from the pseudo relevance feedback document; secondly, a context sensing theme model is introduced, the context is fused into the context sensing theme model, and implicit theme information of a context window is mined on the basis of a corpus theme to obtain a corresponding theme vector; thirdly, query is represented by combining the theme vector and the keyword set, a hybrid retrieval model is constructed on the basis of the theme vector and the keyword set, and a final retrieval score is obtained.

The invention is applicable to the technical field of 3D and provides a 3D shopping guide machine. The 3D shopping guide machine comprises a shopping guide machine body, an LCD (liquid crystal display) screen, an reflection device and a touch screen, wherein the LCD screen, the reflection device and the touch screen are arranged on the shopping guide machine body; the LCD screen is used for simultaneously highlighting and displaying images of an article at different angles; and the reflection device is a three-dimensional space composed of at least three surrounded pieces of acrylic, and the adjacent faces of the pieces of acrylic form a certain angle, the reflection device is used for displaying 3D images of the highlighted displayed images through reflecting and refracting, and the 3D images displayed at every angle are consistent in the display range of the reflection device. The 3D shopping guide machine can form consistent holographic 3D images at a 270-degree or 360-degree viewing angle, and simultaneously enables buyers to experience virtual try-on effect.

The invention relates to a power distribution network situation sensing method based on the complex event processing technology and a decision tree, and the method comprises the steps: defining nodes, and generating a decision tree model according to a node rule and status values; obtaining the input data of the decision tree model; calculating and obtaining output data through employing the corresponding formulas of all nodes; comparing the output data of all nodes with expected values, and obtaining the state changes of the nodes; determining the node priority of the decision tree model, and obtaining an inference result. The method greatly improves the capability of a power distribution network for processing mass information and mastering a key situation under the condition of disasters, and provides decision support for the power distribution network for handling natural disasters.

The invention discloses a method for designing and constructing a pipeline valve noise reduction model. The valve model and the initial noise reduction model are established, and the flow channel model is extracted from the fluid domain. The flow channel model is meshed and divided into several sets of flow channel models with different number of meshes. The discharge coefficient and drag coefficient of the flow passage in the flow passage mesh model are calculated, and the results of the discharge coefficient and drag coefficient of the two flow passage mesh models are compared, and only oneflow passage mesh model is obtained. The numerical simulation is carried out, and the flow field is analyzed by the numerical simulation of the flow passage mesh model. The total pressure cloud picture and the velocity cloud picture are intercepted respectively. After analysis, the initial noise reduction model is adjusted to obtain the noise reduction model. The method of the invention can greatly reduce the manpower and material resources and generate smaller waste, and has practical significance in engineering.

The invention discloses a method to quickly detect polyethylene pipe material rank of ISO9080, it includes (1) detect polyethylene pipe material structure distribution in condensation state, the structure distribution in condensation state includes mass per centum content distribution of crystal phase, interface phase and amorphism phase;(2)compute the mass per centum content distribution of crystal phase, interface phase and amorphism phase;(3) bases the result of the (2)step, process the ISO9080 ratings of the polyethylene pipe material: the mass per centum content of crystal phase is 50-90%for polyethylene pipe material with PE80 rank and more than it, the mass per centum content of interface phase is 5-45%, the mass per centum content of amorphism phase is 0-15%. Compared to pipe certification authority hydrostatic test rating, This method has advantages of convenient, fast, and saving money, accelerate the new pipe material products into research development process, and with high accuracy, wide adaptation.

The invention discloses an automobile display stand for conveniently multidimensional displaying automobile for auto shows. The automobile display stand comprises a base; a motor is connected to the position, close to the middle, of the outer wall of the top of the base through a bolt, a turntable is welded to an output shaft of the motor, a fixing plate which is cylindrical is welded to the outerwall of the top of the turntable, a first ring block is welded to the outer wall of the bottom of the turntable, a first groove is formed in the outer wall of the bottom of the first ring block, balls are in rolling connection with the inner wall of the first groove, a second ring block is in rolling connection with the outer walls of the bottoms of the balls, and a ring plate is welded to the outer wall of the bottom of the second ring block. The automobile display stand is good for customers to observe automobile structure from all sides and improves work efficiency; as the height of the automobile display stand ca be adjusted, customers can observe the chassis of the automobile more conveniently and can be drawn into the automobile better; as related information of products is displayed, customers can learn the automobile better. The automobile display stand has high practicability.

The invention relates to a teaching aid, particularly to an intelligent teaching aid used for operation system teaching, which is used for demonstrating operation system knowledge points, such as process scheduling, process synchronization, deadlock and the like. The intelligent teaching aid mainly comprises a turntable, a telescopic arm, a square table, a digital tube, a light emitting diode and a photoelectric sensor. The intelligent teaching aid combines the advantages of an embedded system and the creativity of a traditional vivid teaching aid, so that the model also combines the advantages of user self programming and visual presentation. The teaching aid has the advantages of simple and clear structure, visual demonstration and low cost, and is suitable for being popularized in teaching.

The invention belongs to the field of industrial equipment digital twinning, particularly relates to an industrial equipment digital twinning construction and maintenance method and system based on data driving, and aims to solve the problem that the application range and efficiency cannot be both considered in the construction and maintenance process of a digital twinning body. The method comprises the following steps: learning industrial equipment labeling data through a data-driven deep learning network to construct a digital twinborn body, and carrying out multi-modal fusion; carrying out multi-modal fusion model training on data of different enterprises through federal learning; new sample space distribution is continuously learned through lifelong learning, and the multi-modal fusion model is updated online; and carrying out industrial equipment health management through the model. According to the method, a complex equipment health management scene in which mechanism modeling is difficult, data sharing is difficult and new fault types continuously occur in a long-term operation and maintenance process in a real industrial scene can be overcome, and the digital twinborn body is vivid, robust, robust and credible.

The invention relates to a method for rapidly detecting the grade of a polyethylene tube special-purposed material. The method comprises the steps that: (1) a sample is detected, such that a differential scanning calorimetric curve is obtained; (2) various melting peaks on the curve are divided into four groups according to a temperature no lower than 127 DEG C, a temperature of 127-120 DEG C, a temperature of 110-120 DEG C, and a temperature no higher than 110 DEG C; corresponding integral areas are calculated; weight percentages and corresponding crystallizable sequence lengths are calculated, wherein a long sequence comprises no less than 260 methylene groups, a relatively long sequence comprises 260-160 methylene groups, a non-long sequence comprises 160-90 methylene groups, and a short sequence comprises no more than 90 methylene groups; and according to the lengths of the crystallizable sequences, polyethylene tube material grading is carried out according to quality contents, wherein long sequence content is 30-86%, relatively long sequence content is 3-25%, non-long sequence content is 3-30%, and short sequence content is 0-50%. The method provided by the invention is convenient, fast, and fund-saving. With the method, tube material novel product research and development processes can be accelerated, and online detection can be carried out.

The invention discloses a teaching aid capable of comparing east-west law difference and convenient for class case teaching. A retaining plate is arranged in an outer frame, a clamping connection plate matched with the outer frame is arranged in the outer frame, a clamping connection groove is formed in the clamping connection plate, a map baseplate matched with the clamping connection groove is arranged in the clamping connection groove in the clamping connection plate, nation clamping grooves for nations are formed in the map baseplate in the clamping connection groove, a display strip is arranged in each nation clamping groove, a law related case of each nation is arranged on the display strip in the corresponding nation clamping groove, nation clamping plates matched with the nation clamping grooves are arranged at the other ends of the display strips, and a supporting box is arranged on the lower portion of the outer frame and can be arranged outside the outer frame in a sleeved manner. By the teaching aid, convenience can be brought to comparing difference of east and west laws during law teaching, and convenience is brought to teaching work of teachers, so that teaching quality is improved greatly, and learning interest of students is increased.

The invention relates to the field of mobile phone reading software, in particular to an intelligent comment system of mobile phone reading software. According to the technical scheme, the intelligentcomment system of the mobile phone reading software comprises a comment input module, a comment display module and a comment evaluation module, wherein the comment input module is used for selectingwords needed to be commented and triggering and opening an operation menu for performing commenting when one part of the words needs to be commented, receiving the input commented words through the operation menu for performing the commenting, and releasing the commented words with corresponding labels; the comment display module is used for displaying comments corresponding to a selected word area on one side of an article area; and the comment evaluation module is used for performing judgment on the displayed comments, wherein the judgment includes ''support'', ''neutrality'' and ''objection''. The intelligent comment system of the mobile phone reading software provided by the invention can improve the reading interactivity and display the comments on reading fields in real time, therebysolving the problem that existing mobile phone reading software cannot comment the reading fields or view the comments.

The invention discloses an electronic book construction method. The electronic book construction method comprises (1) establishing an MP4 (Mobile Pentium 4) object and establishing a simple relationship; (2) establishing an electronic book static catalog; (3) displaying an electronic book dynamic catalog; (4) providing an inference-based knowledge learning and search method; (5) establishing other search methods; (6) establishing other functions. According to the electronic book construction method, a compiled electronic book is clearer, establishment of the interior relationship between interior knowledge of an electronic book is facilitated, knowledge and ideas required to be expressed by a writer are accurately expressed, meanwhile a reader can easily and deeply understand knowledge contents of the electronic book through retrospect of the interior relationship between the knowledge, learning of static expression knowledge of a knowledge main frame tree can increase the knowledge logicality, the application of the logicality and the process knowledge has a large guiding function in applications of the knowledge contents of the electronic book.

The invention discloses a diving clock system which comprises a clock body unit, a hanging bracket unit, a pressure reduction unit, a main cable unit, a cable guide unit and an umbilical cord unit. The clock body unit is connected with the pressure reduction unit through a locking device, the hanging bracket unit is connected with the clock body unit, the hanging bracket unit is connected with a driving device, the driving device is used for driving the hanging bracket unit to rotate to separate the clock body unit from the pressure reduction unit, and the hanging bracket unit drives the clockbody unit to move underwater. The main cable unit, the cable guide unit and the umbilical cord unit are connected with the clock body unit. The main cable unit, the cable guide unit and the umbilicalcord unit dive into water along with the clock body unit. The main cable unit and the cable guide unit are used for pulling the clock body unit in the diving process, and the umbilical cord unit is used for supplying resources to the clock body unit and providing communication signals. The diving clock system is convenient to maintain, the three-dimensional space can be used to a greater extent,the product size is reduced to a greater extent, the operation efficiency is ensured, the time cost is saved, the product use frequency is improved, and the safety performance is reliable.

The invention belongs to the field of primary school mathematics teaching appliances. The invention particularly relates to a cone volume formula derivation demonstration device for primary school mathematics teaching. The device includes a base, a turntable is arranged at the upper end of the base; a bolt is sleeved in the turntable in a sliding manner; a bolt is slidably sleeved with the base, acountersunk groove is formed in the lower end of the base, the lower end of the bolt is connected with a nut through a thread, the outer side of the bolt is slidably sleeved with a pressure spring, an annular groove is formed in the upper end of the base, steel balls are arranged in the annular groove, and the upper ends of the steel balls are in contact connection with a turntable. The turntableis arranged at the upper end of the base, the turntable and the base are connected in a matched mode through the bolt and the nut, the annular groove is formed in the base, and the steel balls are arranged in the annular groove, so that the whole structure at the upper end of the turntable can rotate relative to the base, students at all positions can be demonstrated more conveniently, and the teaching quality is better.

The invention is to control a usual function and a sending function properly when sending a photographed image to an external apparatus. A photographing apparatus (1) includes a first processing unit (51), a second processing unit (52), and a third processing unit (53). The first processing unit (51) executes a function other than sending from the photographing apparatus (1) to the external apparatus. The second processing unit (52) executes a function relating to sending from the photographing apparatus (1) to the external apparatus. The third processing unit (53) controls to allow exclusive execution of a function other than the sending by the first processing unit (51) and execution of a function relating to the sending by the second processing unit (52) in order to prevent the flaw from being caused by performing execution of a function other than the sending by the first processing unit (51) and execution of a function relating to the sending by the second processing unit (52) in parallel.

The invention discloses a traffic sign early education appliance for children, comprising a support rod, the bottom end of the support rod is screw-connected with a fixed base through a fixing nut, and a power line is connected to the fixed base, and a player is fixed on the support rod. The top of the support rod is rotatably connected to the rotating shaft through the turntable, the rotating shaft is sleeved with a turntable, the rotating shaft is located outside the turntable and connected with a pointer through the rotating connection shaft, and the turntable is embedded with traffic signs scattered along the rotating shaft. A power switch is arranged on the outer side of the traffic sign board on the turntable. In the present invention, firstly, by embedding eight traffic signs in an arc-shaped array on the turntable, it is more convenient to explain than the traditional single sign, and at the same time, it can be compared and explained, which is convenient for children to deepen their impressions, and can be more convenient. Have a deep understanding of traffic signs, and at the same time, compared with the traditional single traffic signs, it can prevent loss.