41results about How to "Maintain real-time" patented technology

A VR house viewing system provided by the present invention includes a system front-end cloud network and a network internal system; the network internal system includes a VR terminal server, a VR personal device and a user motion capture device, wherein the VR terminal server, VR personal device, motion capture The devices are all interconnected through the network; the VR terminal server communicates with the front-end cloud network, obtains VR content data through a broadband network or broadcast channel, and uploads feedback information or interactive data to the front-end cloud network; the front-end cloud network includes Join module, automatic decoration module, virtual reality scene generation module, background management module. The VR viewing system enhances the fidelity and immersion of the virtual system, provides users with a more realistic virtual reality, improves user experience, and meets the needs of home entertainment.

The invention discloses a VR automobile sales system which comprises an on-site experience system and a cloud big data platform; the on-site experience system comprises VR terminal equipment, VR personal equipment and user motion capture equipment; the VR terminal equipment is connected with the VR personal equipment and the user motion capture equipment in communication way; the VR terminal equipment is communicated with the cloud big data platform through network, the VR personal equipment acquires a VR content file from the cloud big data platform through the VR terminal equipment to provide an automobile-buying experience for a user based on virtual reality, and the user motion capture equipment captures reactions in user virtual reality experience process and uploads the user experience feedback data to the cloud big data platform; and automobile personalized customization and ordering are realized through communication network between the VR terminal equipment and the cloud big data platform. According to the invention, more perfect automobile-buying experience can be provided for the user, and an automobile marketing new age is opened for automobile manufacturers and dealers.

The invention discloses a method for keyword matching and a device, a server and a system of the method. The method comprises the steps of receiving a query word or a query phrase; detecting whether the query word or the query phrase needs to be corrected or not, and correcting the query word or the query phrase if the query word or the query phrase needs to be corrected; searching whether hot words which correspond to the query word or the query phrase in a mapping way exist in a hot word database or not, and taking out the hot words if the hot words exist in the hot word database; searching keywords which are associated with the query word or the query phrase from an associated keyword database, and taking out keywords of which the number is a preset value from the keywords according to the sequence of the association degree from large to small; ranking and outputting all keywords or all keywords and the hot words which are taken out according to the association degree or the association degree and the hot word frequency. The invention also discloses the device, the server and the system which use or correspond to the keyword matching method. According to the method, the device, the server and the system, disclosed by the invention, the searching accuracy is increased, in-time accurate response searching tendency is realized, and the like.

Systems and methods for scheduling data egress from a network switch. Systems may include switch circuitry, a plurality of ports, and a plurality of queues. Each port may be associated with a respective set of routing information for network packets and each port may be configured with a respective set of egress periods. Each network packet may have respective routing information and a type that specifies a respective egress period. Each queue may be associated with a respective network packet type and a port of the plurality of ports.

The invention relates to an engine agency search method comprising the following steps of: A. inputting a describing word string of a search problem; B. analyzing the describing word string of the search problem; C. optimizing an agency resource; D. issuing and driving search; and E. processing a search result. The invention provides an important technical approach for establishing a unified search platform which is convenient to use and is based on a vertical search technique by establishing new agency search mechanisms among a plurality of professional vertical engine search groups for user search. With the engine agency search method, the problem of difficult adoption of a plurality of vertical search fine products is effectively avoided, and the high search precision and real-time performance contributed by the vertical search technique are kept.

The present invention discloses a life detecting system and method based on a multi-rotor UAV. The system comprises a multi-rotor UAV and a life detecting radar device mounted on the multi-rotor UAV,and further comprises a motion compensating device connected with the life detecting radar device. When the multi-rotor drone is flying in a to-be-tested area, the life detecting radar device performsliving body target detection; and during the detection process of the life detecting radar device, the motion compensating device performs motion compensation on a radar detection signal according tothe real-time position information of the multi-rotor drone so as to compensate for the displacement deviation caused by the jitter of the multi-rotor UAV. The technical scheme of the present invention has the advantages of a simple structure, a low cost, dynamic life detection, high detection efficiency, high precision, a flexible detection mode, and the like.

The invention relates to a fieldbus control device and a control method in the extrusion production field of rubber sealing strip which belongs to the technical field of industry control; the device comprises a master station controller, a fieldbus communication module of a master station, a fieldbus, an extruder controller, a fieldbus communication module of an extruder, a controller of a microwave curing machine, a fieldbus communication module of the microwave curing machine, an oven controller, a fieldbus communication module of the oven, a tractor controller, a fieldbus communication module of the tractor, a punching machine controller, a fieldbus communication module of the punching machine, a cutter controller and a fieldbus communication module of the cutter; the master station controller carries out real-time monitoring, setting and synchronous adjustment to the technique parameters of all the equipment; the control method takes the master station controller as a core and carries out real-time monitoring and synchronous adjustment to the technique parameters of all the equipment such as the extruder, the microwave curing machine, the oven, the tractor, the punching machine, the cutter and other equipment. The fieldbus control device and the control method of the invention improve the production efficiency of the extrusion line of the rubber sealing strip.

The invention relates to a self-organizing method based on a composite structured peer-to-peer network, which comprises the following steps: establishing a two-layer structured logical network model, performing corresponding adjustments on the main machine communication in the network model along with the changes of the network size and the main machine performance, and performing corresponding maintenance on resources in the network so as to achieve the characteristics of self adaptation and self organization to better ensure the network performance . Simultaneously, the network size, the network running conditions, and the like are manageable, thus the network is a manageable P2P and the blank condition of P2P management is changed.

The invention relates to a self-adaptive video twisted-pair wire transmitter. In the transmitter, a video coaxial cable signal is input from the bayonet nut connecter (BNC) of a socket Q9; a resistor R1 is a coaxial cable matching resistor; the video coaxial cable signal is coupled to the second pin of an EL5171 video operational amplification chip U4 by a capacitor C1, input into the video operational amplification chip U4 and converted into a differential signal and the differential signal is output; resistors R8 and R9 are U4 feedback resistors and form a video pre-compensation circuit together with resistors R11, R13 and R14 and capacitors C11 and C12; capacitors C4 and C5 are power supply decoupling capacitors; resistors R4, R5, R6 and R7 and suppression diodes V1, V2, V3 and V4 commonly form a two-stage lightning protection circuit; and the differential signal is output to a twisted-pair wire for transmission through a twisted-pair wire interface J2. The power supply for the transmitter is DC12V and can be shared with a front end camera. The self-adaptive video twisted-pair wire transmitter is characterized by long transmission distance, high transmission quality and anti-interference capability, the preservation of the luminance, color and real-time property of the original image, capability of effectively suppressing common-mode interference, and no interference among different signals of pairs of twisted-pair wires in one cable; and the three-stage lightning protection circuit is adopted, so the transmitter is effectively prevented from being damaged by lightning.

The invention discloses a method for determining GPS deception by a single unmanned aerial vehicle based on Kalman filtering under wind field interference. The method comprises the steps of: wind field perception, position estimation and GPS deception detection. The calculation idea is as follows: the wind field condition can be obtained according to the real-time data of the sensor, the wind field condition can influence the position speculating based on an inertial navigation module, and after the wind field condition is known, the influence of wind on the position speculating can be eliminated, so that the reliability of the finally obtained determination result about whether GPS cheating occurs or not is higher.

A method for determining values which are suitable for distortion correction of an image, including the following steps: a step of splitting a vector field, which is suitable for distortion correction of the image, into a sum of vector products, and a step of determining terms of the vector products as suitable values for distortion correction of the image.

The invention relates to the technical field of data integration, and in particular relates to virtualized data integration and query system and an implementation method thereof. According to the method, the related database object information of a database entity is encapsulated into virtual data by a virtualized encapsulator, the virtual data of each application system is integrated into a virtual database via a virtual data interface by a virtual data integrator and the problems about integrity constraint and semantic conflict are solved to ensure correct access to the data, statements are queried, combined and dispatched to the database entity by a query dispatcher to execute query, the combination treatment of query results is achieved by a result combiner, and thereby the data integration and unified query of the plurality of distributed application systems are achieved in a virtualized manner. According to the method and implementation method thereof, the data integration of the application system under the distributed environment can be achieved, consistency and instantaneity of the data are fully maintained, and the requirements of the data integration and unified query are met; and the system and implementation method thereof can be applied to the data treatment of the distributed system.

The invention discloses a VR scene multi-merchant sales system, which comprises terminal equipment and central equipment, and is characterized in that the central equipment is connected with the terminal equipment through a network; The central device comprises a cloud server and a merchant system; A firewall is arranged between the merchant system and the cloud server; A system information module, a merchant user information module and a terminal equipment information module are arranged in the cloud server; And the merchant system comprises a VR scene information module, an interface information module, a commodity information module and a VR comprehensive display module. According to the shopping system, the customer can conveniently check the VR entity scene of the merchant and the VRentity scene of the commodity, and the user can feel the same scene as offline retail without going out, so that errors caused by shopping are reduced, and the shopping accuracy and convenience of theuser are improved.

The invention discloses a dispatching automation distributed multi-channel cluster extension communication system and method, the system adopts a distributed data acquisition technology to carry out real-time data acquisition, a substation extension substation communication server cluster divides plant station data according to areas to which the plant station data belong, and respectively acquires plant station side real-time data to which a plant station communication server belongs. According to the dispatching automation system, the multi-channel and partition fault switching and synchronization technology is adopted, the integrity and reliability of data are guaranteed, the data communication quality is greatly improved through the communication system and the data collection method, the data uploading time is greatly shortened, the data link establishment time is greatly shortened after a substation data point table is modified, and the network load is effectively shared. The extension substation communication server is arranged on the centralized control side, so that the control and debugging steps of the centralized control side to the plant station side are greatly simplified, centralized control personnel and plant station personnel can communicate with one another, and the working difficulty of operation personnel and maintenance personnel is greatly reduced.

The invention discloses a closed sampling device with fast connectors. The closed sampling device comprises a sampling stretching frame, the sampling stretching frame is provided with sampling openings, all the sampling openings are connected and gathered to a flange short joint through sampling pipes, the flange short joint is connected with a sampling valve, and the sampling valve is connected with sampling bottles through oil outlet pipes; the closed sampling device further comprises an oil returning pipe which is communicated with each oil outlet pipe through a communication valve, and the tail end of each oil outlet pipe is provided with a fast connector assembly which is composed of one upper connector installed on the oil outlet pipe and one lower connector installed on a bottle cover of the corresponding sampling bottle; when sampling is performed, lower valve bodies of the lower connectors are connected to upper valve bodies of the upper connectors in a sleeving mode, elastic valve elements are opened, and closed sampling can be performed. According to the sampling device, a sample in the oil returning pipe can be recycled, the freshness of the sample is guaranteed, the whole sampling process is fast, efficient and sealed, the sampling safety is guaranteed, and it is guaranteed that the sample cannot be polluted by outside media.

A method for determining values which are suitable for distortion correction of an image, including the following steps: a step of splitting a vector field, which is suitable for distortion correction of the image, into a sum of vector products, and a step of determining terms of the vector products as suitable values for distortion correction of the image.

The invention relates to an adaptive video twisted-pair receiver. A video twisted-pair signal is input from a twisted-pair interface J1 and resistors R3 and R4 are twisted-pair matched resistors. Pins 2 and 3 for inputting a level-2 lightning protection circuit differential signal into a video amplification chip IC3 are suppression diodes V1, V2, V3 and V4 and resistors R1 and R2, and pins 6 and 7 are used for inputting a +5V power supply and a -5V power supply. Capacitors C2 and C3 are power supply decoupling resistors. Resistors R5, R9, R12 and R6 and capacitors C12, C13 and C14 are 300-meter fixed-gain amplification circuits. A single-ended signal is output by a pin 8 of the video amplification chip IC3 and is input to a pin 14 of an adaptive equalizer IC2 through a capacitor C5. The MAX7474 adaptive equalizer IC2 is used for restoring loss of a composite video signal in twisted-pair cable transmission. The adaptive video twisted-pair receiver has the characteristics of long transmission distance and high transmission quality. The brightness, colour and real-time property of the original image are kept. The anti-jamming capability is strong. Common mode interference can be effectively inhibited, so that different signals cannot interfere with one another. Due to the adoption of a level-3 lightning protection circuit, lightning damage can be effectively avoided.

Systems and methods for scheduling data egress from a network switch. Systems may include switch circuitry, a plurality of ports, and a plurality of queues. Each port may be associated with a respective set of routing information for network packets and each port may be configured with a respective set of egress periods. Each network packet may have respective routing information and a type that specifies a respective egress period. Each queue may be associated with a respective network packet type and a port of the plurality of ports.

The invention discloses a data synchronization method, which comprises the steps of receiving a link establishment request sent by slave equipment, and establishing a link for performing service datasynchronization with the slave equipment; obtaining a data change model of the service data of the main equipment, wherein the data change model is a data model used for providing business data changecontent; and sending the data change model to the slave device by using the link. The invention further discloses another data synchronization method. The method comprises the following steps: acquiring an address identifier for addressing the main equipment; sending a link establishment request to the master device, and establishing a link for performing service data synchronization with the master device; obtaining a data change model of the service data of the main equipment by using the link; and updating the service data of the slave device according to the data change model. By adoptingthe method, the problem of business data synchronization between the master equipment and the slave equipment of a plurality of entity object management equipment for cooperatively processing the business data is solved.

The invention discloses a design method for realizing a lightweight security container based on an embedded real-time operating system. The method comprises the following steps: creating a security container, and appointing a path and a name of the security container; using file path mapping and quota to configure the security container, setting the number of resources which can be used by the security container and access authority, and configuring a host shared library mapping directory; starting the secure container, and providing an externally accessible port; the application program is executed in the secure container, the permission and behavior of the application program are controlled, and the use time of the CPU of the container is limited by using the priority upper limit; according to the running result, the secure container can exit. According to the method, multiple problems existing in a current container use scene are further solved in a breakthrough mode after multi-aspect support of container functions and container management is achieved, the method has the advantages in multiple aspects of safety, resource occupation, system adaptability and the like, and the real-time performance of an operating system is combined, so that the safety of the operating system is improved. And the use requirements of the industrial control field on the application security are met.

System and methods for synchronizing real time networks. Systems may include a first device located on a first real time network that may include a functional unit, a port, and a plurality of output queues configured for segregation of network packets based on a mapping of one or more additional real time networks to respective output queues. For each of the one or more additional real time networks, synchronization packets may be generated based on a master clock. The packets may be usable by a network timekeeper of the additional real time network to synchronize the additional real time network to the master clock. The synchronization packets may be stored in a respective output queue based on the mapping and may be sent to the network timekeeper of the additional real time network via the port.

The invention discloses a DSP (Digital Signal Processor) -based automatic channel timing sequence voltage acquisition method which is achieved through a voltage conditioning circuit (1), a voltage comparison circuit (2), a DSP chip (3), a communication circuit (4), a RAM (random-access memory) circuit (5) and a FLESH circuit (6). The DSP chip comprises an AD acquisition module (7), a level detection module (8), a data logging module (9) and a data transmission module (10). Through the method, multi-channel timing sequence voltage acquisition can be fulfilled, and detected N-channel timing sequences are conditioned through the voltage conditioning circuit (1), compared through the voltage comparison circuit (2) and acquired through the DSP chip (3). The method is simple in structure, easy to implement and can be widely used in circuits with higher requirements for real-time performance and integrality of acquisition results.

The embodiment of the invention discloses an image processing method of an augmented reality device and the augmented reality device. The image processing method of the augmented reality device (AR) comprises the steps of collecting a human eye image, obtaining a gaze range of the human eyes in an initial point cloud through the human eye image, and comparing an updated point cloud located in thegaze range with a target point cloud to determine whether the target point cloud in the gaze range contains a ghost image or not, wherein the updated point cloud is the obtained point cloud of the updated image in the gaze range, and the target point cloud is the point cloud of the initial point cloud in the gaze range. According to the embodiment of the invention, the problem that the operation burden of the AR device is increased due to the fact that the scheme for removing the ghosts in the AR device in the prior art is very large in operation amount and relatively longer in time consumption, is solved.

The invention relates to the technical field of instant messaging, and discloses a virtual reality instant messaging method, which comprises a cloud network library, an AR terminal server, AR personalequipment and action real-time capture equipment, and is characterized in that the cloud network library, the AR terminal server, the AR personal equipment and the action real-time capture equipmentcan be interconnected and intercommunicated through a network. According to the virtual reality instant messaging method, a series of subsystems such as a cloud network library, virtual reality personal equipment and a user motion capture system are organically combined; the reality and interactivity of the virtual system are kept, meanwhile, the fidelity, reality sense and participation sense ofthe virtual system are improved and enhanced, and more real virtual reality is provided for users, and the user experience is improved, and various requirements of families, offices, friend parties, tourism, buying and selling and the like are met.

The invention discloses a three-dimensional reconstruction method and device based on space plane relation constraint, and the method comprises the steps: three common local and global scale space plane relations in indoor and urban scenes are introduced, and three support surface element sets are extracted for each reconstruction surface element; a supporting surface element is used as a carrier, and a space relation between the surface elements is used as an additional constraint to be introduced into a surface element generation stage, the negative effects of depth map noise and positioning errors are inhibited, the robustness, consistency and accuracy of a final three-dimensional reconstruction model are improved, the newly introduced part is small in calculated amount, the real-time performance and expandability of an existing scheme can be kept, and different scales of scenes can be adapted.

The invention discloses a multichannel low-current collection system based on single chip microcomputer control. The system comprises a multi-channel relay switching circuit, a multi-channel selection control circuit, a multi-channel sensor, a current-to-voltage conversion circuit, an A / D (analog / digital) sampling switching circuit, a single chip microcomputer processor, an SD card storage circuit and an LED nixie tube display circuit. Multi-channel low current can be collected and stored in real time, a single chip microcomputer is adopted for control, an interface circuit is used for communication with an upper computer, and collected data are automatically uploaded to the upper computer through the interface circuit. The system is simple in structure, easy to implement, higher in accuracy, small in error and capable of being widely applied to a multichannel low-current collection circuit which has higher requirements for accuracy of collection result and is easy to expand.

The invention provides a sample library updating method and device, electronic equipment and a storage medium, and relates to the technical field of fault diagnosis, and the method comprises the steps: obtaining a target associated case; the target association case comprises an algorithm push order and a real maintenance order; the algorithm push order comprises a fault prediction result of the target equipment; based on a preset matching condition, judging a conversion relationship between the algorithm push order and the real maintenance order, and determining whether the real maintenance order is a conversion result of the algorithm push order; and if yes, taking the fault prediction result in the algorithm push order and the operation data of the target equipment as a group of fault cases, and updating the sample library. According to the method and the device provided by the invention, the utilization rate of the real operation data of the equipment is improved, the updating of the fault diagnosis algorithm sample library is automatically realized, and the effectiveness and the real-time performance of the sample library are kept.

An index structure operating method, apparatus and system are disclosed. The method comprises the following steps of: writing an update of the continuously acquired index structure into a memory; andcopying the written index structure to ensure that read and write to the index structure are performed simultaneously for each of the two currently valid index structures. The dynamic memory index structure of the invention can realize the localization of index reading by remotely updating the local memory index dynamically, thereby solving the problems of index updating and index reading delay. Further, the efficiency of the index operation is further improved by separating the read and write through the double caching.

The embodiments of the invention provide an obstacle recognition method and device, a terminal and a computer readable storage medium, which relate to the field of local navigation of robots and intelligent vehicles. The method comprises the following steps: obtaining a 2D coordinate set of the surrounding environment through radar, and obtaining a 3D coordinate set of the surrounding environmentthrough a somatosensory camera; adjusting the 2D coordinate set and the 3D coordinate set according to a preset algorithm to obtain a target coordinate set, so as to unify the abscissa values and theordinate values of the 2D coordinate set and the 3D coordinate set; and recognizing an obstacle according to the target coordinate set. The real-time performance and accuracy of obstacle recognition can be maintained, and the overall characteristic of an obstacle can be displayed.

According to a robot capable of adjusting welding height through an arc voltage heightening system and a welding method, the length of a collected arc is converted into data information to be fed backto a robot control module, the robot control module adjusts the posture of the robot according to the fed-back data information, and arc voltage is kept stable and consistent during automatic weldingoperation of the robot. The robot comprises a robot body provided with a welding machine, a workpiece to be welded, a robot locating module, a high-voltage contactor module, wherein the robot locating module is used for locating the robot; the high-voltage contactor module is used for controlling on-off of a main loop of the welding machine. The robot further comprises a welding arc voltage heightening system and a robot control module which are used for accurately sampling the arc voltage of the welding machine and conducting digital algorithm processing, and after proper arc voltage data are obtained, the arc voltage data are uploaded to the robot control module to act.