65results about How to "Meet the needs of application scenarios" patented technology

The invention provides a data processing method and device for a virtual scene, and the method comprises: enabling a first terminal to collect a first image through a camera, wherein the first image comprises an image of an object; Obtaining first point cloud data of the object according to the first image, Wherein the first point cloud data represents a three-dimensional coordinate value of a surface point of the object in a first camera coordinate system of a first terminal; Obtaining pose data of the first terminal in a first camera coordinate system according to the first image; Obtaininga two-dimensional feature image according to the pose data, the first point cloud data and the first image; Generating map data according to the first point cloud data, the pose data and the two-dimensional feature image; And sending the map data to a second terminal or a server. By implementing the method and the device, terminals of the same type or different types can realize coordinate systemsynchronization of the virtual scene in any natural scene in a cross-platform manner, various spatial positioning engines are compatible, and user requirements are met.

The invention provides an information classification method and device. The method comprises the following steps of: obtaining a plurality of example feature tags and obtaining a relationship between each example feature tag and a to-be-classified subject directory; carrying out word segmentation on a plurality of to-be-classified sentences so as to obtain a to-be-processed word set; carrying out similar word replacement processing on to-be-processed words to obtain an updated word set; generating a to-be-classified feature tag according to the frequency of a first word combination included in each to-be-classified sentence in the updated word set; calculating a maximum semantic similarity between the to-be-classified feature tag and the plurality of example feature tags, and when the maximum semantic similarity b is greater than or equal to a preset similarity threshold value, taking an example feature tag corresponding to the maximum semantic similarity as a target feature tag of the to-be-classified feature tag; and labelling the to-be-classified sentence corresponding to the to-be-classified feature tag as a subject directory corresponding to the target feature tag. The method and device provided by the invention can be used for enhancing the information classification efficiency.

The invention discloses a network flow distribution method. The method comprises the following steps of S10, monitoring a total network flow of each terminal equipment connected into a same network; S20, determining whether the total network flow exceeds a preset flow threshold; S30, when the total network flow exceeds the preset flow threshold, collecting and reporting network reference data on the terminal equipment; otherwise, executing the step S10; and S40, according to the received network reference data, distributing the network flow of each terminal equipment. In the invention, when the total network flow exceeds the preset network flow threshold, the network reference data is automatically encrypted and reported; according to the network reference data, an application scene of a network resource of each terminal equipment is identified; and according to the analyzed application scene, the network flow is distributed for each terminal equipment so as to satisfy an application scene need of the terminal equipment which most needs the network flow of the user, and then a user experience is improved.

The invention provides an Internet-of-things system determination method and device, electronic equipment and a storage medium. The method comprises the following steps of: outputting hardware information of alternative hardware corresponding to a meta-scene; determining target hardware of the Internet-of-things system based on a selection operation for the hardware information; outputting description information of application functions, the application functions at least comprising a basic function and a service function; on the basis of a selection function for the description information,combining a selected function module of the basic function and a function module of the service function to obtain an application running on the target hardware; and performing network configuration of the Internet-of-things system according to the connection scheme of the Internet-of-things system.

The invention provides a food information management method for an intelligent refrigerator. The food information management method for the intelligent refrigerator comprises the following steps: responding first user input to display a door and refrigerator opposite photographed image for showing a refrigerating chamber region and a refrigerating chamber door region of the intelligent refrigerator; displaying a mask on the door and refrigerator opposite photographed image, and displaying food icons of food stored in the intelligent refrigerator on the mask; after the scheduled time, displaying a food management instrument panel to replace the door and refrigerator opposite photographed image, the mask and the food icons which are displayed previously, wherein food information of the foodstored in the intelligent refrigerator is list on the food management instrument panel; and responding second user input to manage the food information.

The invention provides an optimization method of power distribution in an accessing strategy of wireless relays of the internet of things. The method includes that in a local region of the internet of things, multiple nodes of the internet of things share a node in a wireless mode to be accessed to an application scenarios of a public cellular network, a model of attenuation channel capacity is adopted, the maximum channel capacity serves as the optimization method, and joint optimization of the power distribution is carried out on multiple access channels and multiple node relay channels in the scenarios. Due to the fact that a control device is relatively simple, the optimization method of the power distribution has the advantages of being rapid and brief, and requirements of the power optimization in the scenarios of the internet of things are met.

The invention discloses an intelligent operation and maintenance power distribution and utilization system based on an active service management mode. The system comprises an information concentrator(1), a total residual current protection circuit breaker (2), a middle-stage residual current protection circuit breaker (4), an intelligent electric meter (6) and a final-stage residual current protection circuit breaker (8). The total residual current protection circuit breaker (2) can be embedded into an HPLC single-phase carrier wave module, and an HPLC single-phase carrier wave is used in a plug-and-play mode and serves as a child node of an HPLC network, wherein the hierarchical relationship of the child node in the whole HPLC network and the like can be sensed by a route, and thereforethe network topology of the whole HPLC can be drawn. The middle-stage residual current protection circuit breaker (4) comprises a wireless and carrier wave dual-mode communication module (5), the datainformation from the middle-stage residual current protection circuit breaker (4) to the information concentrator (1) is transmitted by carrier communication, and the data information from the final-stage residual current protection circuit breaker (8) to the middle-stage residual current protection circuit breaker (4) is transmitted by wireless communication.

The invention belongs to the technical field of sensors and especially relates to a TOF (Time of Flight) three-dimensional distance measuring sensor. The sensor includes a TOF processing chip composed of a distance calculating unit, a transmission driver and a receiving and processing circuit. The transmission driver is connected with an LED array light source. The receiving and processing circuit is connected with a CMOS light sensing chip. A transmitting lens is arranged in the transmitting direction of the LED array light source. A receiving lens is arranged in the receiving direction of the CMOS light sensing chip. The sensor provided by the invention is small in size, high in measurement precision, large in measurement distance; the actual measurement distance can reach 15 to 25 m. Besides, measurement results of the sensor provided by the invention are insusceptible to interference of vibration signals, sound signals and the like, so that product stability is improved substantially. Also, through effective control of frequency, power and divergence angle of the light source, the measurement results are insusceptible to influence of environmental light environments. The sensor provided by the invention can work stably in scenes of snowfield, desert and the like no matter in night or day, summer or winter. Therefore, requirements of automobile application scenes can be met.

The invention discloses an AHB / APB expansion bus interface and a system-on-chip, and the expansion bus interface comprises a plurality of bus connectors which are used for being connected with corresponding external equipment, and comprise external equipment controllers and at least one group of registers; an address decoder used for connecting the AHB / APB bus of the micro-control unit with the plurality of bus connectors, mapping peripheral address signals sent by the micro-control unit through the AHB / APB bus into register address signals of the corresponding bus connectors, and further sending the register address signals to the corresponding bus connectors; and a multiplexer used for connecting the AHB / APB bus with the plurality of bus connectors and establishing connection between theAHB / APB bus and the bus connector selected by the chip selection signal according to the chip selection signal sent by the micro-control unit through the AHB / APB bus so as to transmit a data signal.By means of the mode, the MCU kernel can extend more external devices, and the usability and the expandability of the MCU are improved.

The invention discloses a method to divide big data transmission tasks based on task scheduling. The method comprises: configuring data sources; configuring big data transmission tasks; starting the transmission tasks, and dividing each task into multiple subtasks based on task scheduling so as to carry out data transmission. The method has the advantages that long execution time of a single taskcan be avoided, resources are never used for long time, data transmission efficiency can be effectively improved, system running risk can be relieved, system running efficiency can be improved, special data type requirements can be satisfied, and application scenario needs are fully met.

Embodiments of the invention provide an information processing method and apparatus. The method comprises the steps that a first client sends webpage personalized display configuration information corresponding to webpage contents of a first user to a server; the first client obtains webpage link information generated based on the corresponding configuration information by the server; and the first client sends webpage link information to a second client, thereby enabling the second client to present a personalized webpage to a second user. According to the information processing method and apparatus, the first user and the second user can effectively perform information communication in a webpage personalized display form, so that the information receiving efficiency of an information receiver can be improved and the demands of multiple application scenes are met.

The embodiment of the invention provides an encrypted database system and a method and device for realizing the encrypted database system. The encrypted database system comprises a client and a server, and a plurality of security modules and at least one database server provided based on different trusted platforms are arranged on the server; wherein the plurality of security modules are provided with unified service interfaces, and the database server communicates with the security modules through the service interfaces; in response to establishment of connection with the client, the database server sends the corresponding encryption algorithm information and protocol information to the client according to the selected security module; the client encrypts a plaintext by using the encryption algorithm information and the protocol information to obtain a first ciphertext; and the database server sends the first ciphertext carried in the first access request to the corresponding security module through the service interface; finally, the security module decrypts the first ciphertext into a plaintext, and performs trusted computing on the plaintext.

Provided is a preparation method of a light fireproof composite material. A laying layer structure and a light prepreg are included, the laying layer structure is formed by combining a surface layer and a center layer, the laying layer structure is arranged to be of an up-and-down structure, the surface layer is made of phenolic aldehyde prepreg, the center layer is made of epoxy prepreg, and thelaying layer structure and the light prepreg are compounded into a sheet plate through hot pressing; the surface layer is of an up-and-down two-layer structure, and the center layer is arranged in themiddle of the surface layer; the main components of the phenolic prepreg are phenolic resin and fibers; and the main components of the epoxy prepreg are epoxy resin, fibers and a flame retardant. A plate is formed by hot-pressing compounding of the laying layer structure, and the composite material has excellent fireproof and flame-retardant properties of a phenolic aldehyde composite material and high structural strength, environmental protection and low VOC properties of an epoxy composite material at the same time, and meets the requirements of various application scenes in the field of rail transit.

The invention provides a test board. The test board comprises a first test board, a first rotary connecting piece and a second test board; the first rotary connecting piece is arranged at the edge ofthe surface of the first test board; the edge of the surface of the second test board is rotatably connected with the first test board by being connected with the first rotary connecting piece; the first test board is rotated and unfold around the first rotary connecting piece relative to the second test board, or the first test board is rotated and folded around the first rotary connecting piecerelative to the second test board. Since the first rotary connecting piece is adopted, the first test board can be rotated and folded around the first rotary connecting piece relative to the second test board, or the first test board is rotated and unfold around the first rotary connecting piece relative to the second test board according to use or storage requirements; since the test board can befolded, the size of the test board during movement and storage can be reduced, and the test board is more convenient to move and store.

The invention relates to a building energy consumption model evaluation method based on a building energy management application scene. The method comprises the following steps: firstly, establishinga building energy consumption model, establishing a multi-dimensional comprehensive evaluation model in combination with a building energy application scene, evaluating the energy consumption prediction performance of the building energy consumption model in historical energy consumption data of a certain building for many years in different periods according to the evaluation model to obtain a comprehensive evaluation result of the building energy consumption model, and determining a final deployment model according to the comprehensive evaluation result. The invention further provides a building energy consumption model evaluation system based on the method, and guidance is provided for building energy consumption management personnel to select a proper building energy consumption model.Aiming at a specific building energy application scene, comprehensive evaluation is carried out on a set evaluation task according to the method, and a building energy consumption model with the optimal performance is selected for deployment, so that the formulation and implementation of a green building energy management operation strategy are guided, and the purpose of the efficient and energy-saving operation of a green building energy system is achieved.

The invention relates to a multi-degree-of-freedom micro-vibration diagnosis method and sensing terminal. Calculation and observation of settlement and displacement values are realized, and credibility analysis is carried out on the settlement and displacement values obtained by calculating data samples acquired at each acquisition time point, thereby improving the accuracy of an observation result. Through vibration detection and trigger data acquisition including acceleration data, magnetic field data, angle data, positioning data and the like, the sensors are high in collaboration, the datarelevance at the same time is high, and the dynamic change condition of an observation point can be reflected in real time. According to the invention, non-contact sensing, edge calculation, data storage, backup power supply, communication transmission, encryption chips and the like are realized, a wider acquisition frequency can be freely selected, and micro-vibration and magnetic force change can be freely sensed; and the method and the sensing terminal can be applied to different application scenes such as dangerous buildings, ancient buildings, bridges, underground pipe galleries, dams, tunnels and iron towers, and provide powerful support for disaster monitoring and early warning and forecasting in China.

The invention relates to a video intelligent analysis custom event rule processing method. The method comprises the following steps: selecting one or more input conditions of an event rule needing tobe set; setting an input condition based on the selected input condition; based on the setting of the input condition, setting related to the event, and generating a corresponding event rule; and performing related event detection based on the generated event rule, and performing related alarm and equipment linkage when an event occurs. Based on the video intelligent analysis custom event rule processing method provided by the invention, the custom event rule can be set based on the combination of various conditions such as the area, the warning line, the time, the recognition result and the equipment state, so that the requirements of various application scenes can be met under the condition of not developing the specific event rule, and the user experience is improved, the project development workload is greatly reduced, and the project development period is shortened.

The invention discloses a group callback method in a broadband trunking system. The method comprises the steps that a sending end sends a first group callback request to a trunking core network; the trunking core network selects a callback receiving end according to the first group callback request; the trunking core network sends a second group callback request to the callback receiving end; andthe callback receiving end receives and stores the second group callback request and calls back a session group in which the sending end is located in response to the second group callback request when a preset condition is satisfied. In the mode, according to the method, the device and the system, the communication efficiency can be improved, demands of related application scenes can be satisfied, and the user experience can be improved.

The invention provides a heterogeneous integrated system-in-package structure and a packaging method, and the structure comprises a ceramic substrate, wherein one side of which is dug to form a firstcavity; a Kovar ring which is arranged on the other surface of the ceramic substrate and is used for forming a second cavity; a first cover plate which is arranged at the opening of the first cavity and is used for sealing the first cavity; a second cover plate which is arranged at the opening of the second cavity and is used for sealing the second cavity, wherein at least one chip is arranged ineach of the first cavity and the second cavity, the chips are adhered to the surface of the ceramic substrate through a conductive adhesive, at least one passive discrete device is arranged in the first cavity or the second cavity, and the passive discrete device is adhered to the surface of the ceramic substrate through a conductive adhesive. A double-sided cavity structure is formed by adoptinga single-sided cavity-dug ceramic substrate and a Kovar ring, the structural stability is improved, the signal wiring is shortened, the interconnection efficiency and the system integration degree areimproved, the integration of active and passive devices is realized, the process maturity and the module reliability are both considered, and the guidance is provided for high-reliability SiP mass production.

The invention relates to a method for identifying a flexible pressure sensor array diagram based on deep learning, which comprises the following steps of: pasting a sensor on a manipulator to grab an object, and classifying the identified object; generating a flexible pressure sensing array graph sample by using a deep convolutional generative adversarial network technology; training a flexible pressure sensing array graph sample by using an improved neural network model and introducing an attention mechanism to obtain an optimal model; testing the test set in the sample according to the optimal model obtained by training; the trained optimal model is applied to the manipulator, an object is dynamically grabbed, and the type of the object is recognized; the method is high in recognition accuracy, high in recognition efficiency and strong in generalization ability, and can meet the requirements of a large number of application scenes.

The invention relates to a camera-based attention prediction analysis method and device and a terminal, and belongs to the technical field of attention prediction analysis. The method comprises the following steps: acquiring an access permission of a camera and display screen information; then controlling a camera to be started for eyeball positioning and tracking, and obtaining attention index calculation parameters; inputting the display screen information and the attention index calculation parameters into a pre-established attention prediction analysis model to obtain an attention index result; requesting data from a background through an API interface according to an attention index result; and finally pushing the request data to the user. The camera on the device is used for detecting the rotation angle and the parking time of the eyeballs of the human body, the index parameters are obtained according to the training model, the attention behavior of the user on the current information is actively predicted, the accuracy of predicting the attention degree of the user on the information is greatly improved, and the requirements of related application scenes are met.

The invention discloses a geographic data availability evaluation method, which comprises the following steps of: evaluating geographic data in three aspects of visualization effect, reliability and effectiveness, judging that the visualization effect SIM >=90 is excellent, judging that the 85<=SIM<90 is qualified and judging that the SIM <= 85 and is unqualified; judging the reliability W>=99.99is excellent, judging that the reliability 95<=W<99.9 is qualified, and judging the reliability W<95 is unqualified; Judging that the validity Eff >= 99.99 is excellent, judging that the validity 95<=Eff<99 is qualified, and judging that the validity Eff<95 is unqualified; In addition to the evaluation of the visualization effect, reliability and validity, the availability of all geographic data having elements that do not conform to relevant national regulations is determined to be unqualified. The method can effectively solve the problem that geographic data subjected to geometric precisiondecryption needs to be judged whether to still meet the service application or not.

The embodiment of the invention discloses an ad hoc network method and device based on WiFi, a storage medium and a wireless node, and belongs to the field of wireless communication. The method comprises the following steps: when a first node searches a child node, the first node broadcasts a beacon frame; the first node receives a connection authentication request sent by the second node in response to the beacon frame; the first node obtains a network topology parameter, wherein the network topology parameters comprise the number of child nodes of the first node and the depth between the first node and a root node; and when the network topology parameter is matched with a preset networking constraint parameter, the first node and the second node establish WiFi connection to enable the second node to serve as a child node of the first node, and the topology structure of the communication network can be flexibly adjusted according to different application scenarios.

The invention provides a monitoring method and a monitoring system based on combination of position information and video verification. The monitoring method comprises the following steps: acquiring the position information of an observation point and storing the position information to form a corresponding database; obtaining vehicle data matched with the order; based on the running track of thevehicle, obtaining observation points passed by the vehicle and corresponding timestamps of the observation points, and intercepting video data of the corresponding observation points for arrangement;and analyzing and processing the video data so as to monitor the running state of the vehicle. Based on the monitoring method, the calling of a large amount of other useless data can be reduced, andthe required data does not need to be selected from massive video data, so that the video acquisition time is saved. In addition, the process of video monitoring and / or video viewing can be further simplified, manpower and time are saved, the actual riding condition of the user passing through different observation points can be effectively judged, and the method is particularly suitable for riding standard monitoring of shared riding vehicles.

The embodiments of the invention disclose a microwave heating device and system. The microwave heating device comprises a microwave transmission line and a microwave feed-in port; the microwave transmission line comprises a transmission conductor, an auxiliary dielectric and transmission ground; the transmission ground is arranged around the transmission conductor so as to form a shielding shell;and the auxiliary dielectric and the transmission conductor are arranged in the shielding shell; the transmission conductor comprises a first end; and the first end of the transmission conductor penetrates through the shielding shell; the microwave feed-in port is connected with the first end; the microwave feed-in port is used for introducing microwave signals; the shielding shell is used for carrying a to-be-heated object; and the microwave heating device is used for heating the to-be-heated object. According to the embodiments of the invention, the size of the device is miniaturized, and diversified application scene requirements are met.

The invention provides a method, device, electronic equipment and storage medium for determining an Internet of Things system. The method includes: outputting hardware information of candidate hardware corresponding to the meta-scenario; determining the target hardware of the IoT system based on a selection operation on the hardware information; outputting description information of application functions, wherein the application functions are at least Including: basic functions and business functions; based on the selected function for the description information, combine the selected functional modules of the basic functions and functional modules of the business functions to obtain an application running on the target hardware; According to the connection scheme of the Internet of Things system, the network configuration of the Internet of Things system is performed.

The invention discloses an integrated bionic liquid-absorbing core for a loop heat pipe, a preparation method and an application. The integrated bionic liquid-absorbing core includes a base body, a liquid compensation chamber and a capillary suction channel; the liquid compensation chamber is provided with a liquid inlet, and communicates with the capillary suction channel at the downstream port of the liquid compensation chamber, and the downstream of the capillary suction channel The port is a steam outlet; the liquid compensation chamber and the capillary suction channel are arranged in multiple levels to form a tree-like multi-level bionic channel, and the diameter satisfies Murray's law. The preparation of the integrated bionic liquid-absorbing core combines selective laser sintering 3D printing technology, and the preparation process is simple and convenient. The invention integrates the liquid-absorbing core and the liquid compensation chamber, and connects them through a multi-stage bionic channel based on Murray's law. When applied to a loop heat pipe, it can ensure that the liquid-absorbing core has a large capillary suction force and reduce the liquid labor cost. It has low mass flow resistance and excellent anti-gravity running performance, so it has a good application prospect.

The invention discloses a control circuit, a control method and a corresponding pulse source system of a pulse output source. The control circuit includes a trigger part, a cascade charging and discharging part and a load part, and the cascading charging and discharging part includes a plurality of sequentially cascaded units, each of which includes an avalanche transistor, an avalanche transistor for switch control Transistor (hereinafter referred to as: controllable transistor), current limiting resistor and charging capacitor; wherein the base of the controllable transistor in each of the above units is used to receive a control signal, so that the charging capacitor in the unit can be selected to be excluded Outside the discharge capacitor group, in order to realize the adjustment of the output power of the pulse output source. The invention selectively collects electricity from the energy source, is low in cost, and is easy to manufacture. The pulse source system can meet the requirements of more application scenarios while increasing control flexibility.

The invention discloses a flexible configuration method and system for a medium and low voltage protection and measurement device, and the method comprises the steps: carrying out the independent decomposition of a sampling function of the device, and forming a sampling matrix configuration module suitable for a plurality of AC input loops; the input and output signals of the device are classified according to purposes to form a flexible and configurable input and output signal matrix configuration module; according to the sampling, input and output values of the sampling matrix configuration module and the input and output signal matrix configuration module, adapting to protection logic to form a protection logic function module capable of being edited online; according to the system and the method, a friendly visual development interface is provided, use and operation are simple, rich function module elements can meet the requirements of various application scenes, and variable function customization development of the device can be efficiently completed through flexible configuration and combination.