58 results about "Device Grid" patented technology

A mesh data decoding method, according to embodiments, may comprise the steps of: receiving a file including a bitstream including mesh data; decapsulating the file; and decoding the mesh data. A mesh data encoding method, according to embodiments, may comprise the steps of: encoding mesh data; encapsulating a file including a bitstream including the mesh data; and transmitting the file.

The invention discloses a multi-tube parallel power device phase shift type current sharing and crosstalk suppression drive circuit which is composed of a crosstalk suppression unit, a current balancing unit, a control response unit and a function switching unit. Wherein the crosstalk suppression unit generates a control signal for suppressing the crosstalk voltage of the parallel power device and shields the interference of the current balancing unit; the current balancing unit generates a control signal for balancing the dynamic current of the parallel power device and shields the interference of the crosstalk suppression unit; the control response unit is used for realizing crosstalk active clamping or current active equalization; and the mode switching unit realizes automatic switching of a crosstalk suppression function or a current equalization function according to configuration. Parallel device grid driving signal feedback is introduced, crosstalk voltage active clamping and dynamic current active balancing are achieved through a logic circuit, and the parallel expansibility is high; an exclusive-OR gate is adopted to accurately identify synchronous or asynchronous information of driving signals of the parallel devices, and various different gate sequential modes in parallel application of the hybrid devices can be compatible.

The invention discloses an industrial smart energy multi-energy evaluation visualization system and method, and relates to the technical field of energy big data visualization crossover, and the method comprises the steps: collecting and preprocessing multi-source heterogeneous data, and generating space-time aligned high-dimensional energy data through a space-time hash coding method; based on the three-dimensional manifold coordinate model, converting equipment energy efficiency parameters into an equivalent energy mass field, and through an energy field reconstruction and geometric optimization method, generating a curved manifold space and identifying an optimal transmission path and a distortion strength cloud picture; and based on the distortion strength cloud picture, generating a thermodynamic color gradation through a thermodynamic color gradation mapping algorithm, rendering three-dimensional gradient field distribution of the equivalent energy mass field by adopting a ray tracing method, and generating a visual energy evaluation interface. According to the method, space and time hash codes are generated through a space-time hash coding method, the equipment-grid mapping relation is established in combination with GeoHash coding, and accurate space-time alignment of multi-source heterogeneous data is achieved.

A mesh decoding device 200 includes a circuit that: outputs a base mesh, outputs an intra prediction residual, and decodes a displacement by performing intra prediction of a displacement of a subdivided vertex based on the outputted base mesh to calculate an intra prediction value, and adding the calculated intra prediction value and the outputted intra prediction residual.

A grid data transmission method according to an embodiment may comprise the steps of: encoding grid data; and transmitting the bitstream including the mesh data. A mesh data receiving method according to an embodiment may comprise the steps of: receiving a bitstream including mesh data; and decoding the grid data.

A displacement decoding unit (205) of a mesh decoding device (200) according to the present invention includes: a bypass arithmetic decoding unit (205A) configured to generate a coefficient level value by performing bypass arithmetic decoding on a displacement bit stream; an inverse quantization unit (205B) configured to generate a first transformed coefficient by performing inverse quantization on the coefficient level value; an adder (205D) configured to generate a second transformed coefficient by adding a prediction transformed coefficient and a prediction residual; an inter prediction unit (205F) configured to generate the prediction transformed coefficient by performing inter prediction by using the second transformed coefficient of a reference frame read from the frame buffer; and a second inverse transform unit (205G) configured to generate a decoded displacement by performing second inverse transform on the second transformed coefficient.

The invention relates to a power interface device grid-side capacity control method and converter equipment, one side of each power interface device is connected with at least one converter, the other side of each power interface device is connected with a power grid, and when two or more power interface devices exist, the power interface devices are connected in parallel and then connected with the power grid. And for each power interface device, the grid-side current and the grid-side power of the power interface device are obtained, the power output reference value of each converter is adjusted based on the grid-side current, the grid-side power and a preset current threshold value, the power output of the converter is adjusted based on the adjusted power output reference value, and the power output comprises active output and / or reactive output. The power output of each converter is adjusted by taking the grid-side current limit value of the power interface device as a control target, so that the current flowing through the grid-side interface of the power interface device is controlled, the grid-side current is limited in a reasonable range, the condition that the capacity of a grid-side line exceeds the limit or is limited is avoided, and the service life of the power interface device is prolonged. And the working reliability of the converter equipment is improved.

The application discloses a kind of wisdom energy multi-energy evaluation visualization system and method for industry, it is related to energy big data visualization cross technical field, including, acquisition multi-source heterogeneous data and pre-processing, by space-time hash coding method, generate high-dimensional energy data of space-time alignment;Based on three-dimensional manifold coordinate model, the equipment energy efficiency parameter is converted into equivalent energy quality field, by energy field reconstruction and geometric optimization method, generate curved manifold space and identify optimal transmission path and distortion intensity cloud chart;Based on distortion intensity cloud chart, generate thermal color scale by thermal color scale mapping algorithm, and the three-dimensional gradient field distribution of equivalent energy quality field is rendered using ray tracing method, generate visual energy evaluation interface.The application generates space and time hash code by space-time hash coding method, establishes equipment-grid mapping relationship in combination with GeoHash coding, realizes the accurate space-time alignment of multi-source heterogeneous data.

The present invention relates to a method for updating a texture map of a 3D mesh and a computing device using same. The method for updating a texture map of a 3D mesh using a computing device according to an embodiment of the present invention comprises the steps of: generating a 3D mesh for a target environment and an initial texture map for the 3D mesh from each target image obtained by imaging the target environment with a plurality of camera poses; parameterizing the initial texture map; generating a rendered image for the target environment from the initial texture map and the 3D mesh by using a differentiable renderer; fine-tuning the differentiable renderer by performing supervised learning on the generation of the rendered image on the basis of the target image; and regenerating a texture map of the 3D mesh from the initial texture map by using the fine-tuned differentiable renderer.

The invention discloses a mesh network topology management method, a mesh network topology management device and electronic equipment. The method is used for gateway devices in a mesh network, the mesh network comprises a plurality of gateway devices and a plurality of node devices, and the method comprises the following steps: acquiring first network information between the plurality of gateway devices and the node devices; obtaining first target data; and selecting a first target gateway device from the plurality of gateway devices according to the first network information, so as to send first target data to the target node device through the first target gateway device. By adopting the processing mode, when the data is sent to the node equipment, the plurality of gateway equipment cooperatively manage the network topology, and one better gateway equipment is selected to send the data to the node equipment, so that only one communication link exists in the same physical space, the interference of wireless signals in the air is avoided, and the data transmission efficiency is improved. Network congestion and transmission delay are avoided; therefore, the data transmission efficiency and the user experience can be effectively improved.

The invention relates to the technical field of end-to-end communication, intelligent calibration of mouse cursor positions and the like, and provides an intelligent calibration method for mouse cursor positions in end-to-end mouse control, which comprises the following steps of: acquiring a screen resolution of main control equipment and a screen picture of controlled equipment, and adjusting the screen picture of the controlled equipment according to the resolution of the main control equipment; dividing a screen of the controlled equipment into equal-proportion grid areas; searching and determining the current position of a mouse cursor of the controlled equipment, and mapping the current position to the grid area; and acquiring coordinates of a mouse cursor of the master control equipment, comparing the coordinates with grid coordinates of the controlled equipment, if the coordinates are inconsistent, calculating an offset distance needing to be adjusted, and adjusting the cursor position of the controlled end until the coordinates are consistent with the coordinates of the master control end. According to the method, accurate synchronization of mouse positions among heterogeneous systems is realized through establishment of the equal-proportion grid model, image recognition and positioning and coordinate compensation based on the grid difference value, the problem of non-synchronization of cursor positions caused by resolution difference, event hijacking or abnormal response is solved, and the control accuracy and the system robustness are improved.

This invention relates to the field of generator grid connection technology, specifically to a remote wireless grid connection device and method for generator vehicles / generator sets based on 5G / satellite communication. It includes: a grid connection main device installed on the grid side, comprising a main control module that sends control commands to a grid connection execution module on the generator side via a remote wireless communication module; a grid connection sub-device installed on at least one generator side, comprising a grid connection execution module that receives control commands from the grid side and executes grid connection operations via a remote wireless communication module; and a remote wireless communication module comprising a remote wireless communication main module installed on the grid connection main device and remote wireless communication sub-modules installed on the grid connection sub-devices, establishing a wireless bidirectional data communication link between the grid side and at least one generator side. Compared with existing technologies, it eliminates the need for physical communication lines and additional mains bypass switches, enabling parallel grid connection without distance or quantity limitations, and offers flexible sampling and disassembly / removal, as well as high access security.

The invention discloses a construction engineering construction site robot control networking system, and the system comprises a first networking radio station, a plurality of second networking radio stations, a plurality of third networking radio stations, a plurality of construction robots, and a server. The third networking radio station is arranged on the construction robots, the plurality of construction robots form a plurality of robot clusters, each robot cluster comprises at least two construction robots, and the construction robots of different robot clusters are located in different first working areas; the plurality of second networking radio stations and the first networking radio station automatically form a wireless grid network through MESH networking, the plurality of second networking radio stations and the plurality of robot clusters are in one-to-one correspondence, the second networking radio stations are in network connection with each construction robot in the corresponding robot clusters, and the first networking radio station and the server are located in a second working area. The stability of the control networking system of the building engineering construction site robot can be improved.

A grid data encoding method according to an embodiment may comprise the steps of: encoding grid data; and transmitting the bitstream including the mesh data. A mesh data decoding method according to an embodiment may comprise the steps of: receiving a bitstream including mesh data; and decoding the grid data.

A mesh decoding device 200 according to the present invention is provided with: an atlas data decoding unit 207 that decodes an atlas bitstream to generate and output control information; a basic mesh decoding unit 202 that generates and outputs a basic mesh using the control information and a basic mesh bitstream as inputs; a subdivision unit 203 that outputs a subdivided mesh and subdivision vertex normals using the control information and the basic mesh as inputs; a mesh decoding unit 204 that generates a decoded mesh using the control information, displacement amounts, the subdivided mesh, and the subdivision vertex normals as inputs; and a boundary correction unit 208 that receives the control information and the decoded mesh and outputs a boundary-corrected decoded mesh.

The present invention reduces complexity of computation for decoding of a motion vector or decoding of a basic mesh of an intra-frame. A mesh decoding device 200 according to the present invention comprises: an intra-decoding unit 202B that decodes a basic mesh from a bitstream of an intra-frame; and an inter-decoding unit 202E that decodes a motion vector from a bitstream of an inter-frame, adds the decoded motion vector to a basic mesh of a reference frame, and decodes the basic mesh. The intra-decoding unit 202B or the inter-decoding unit 202E includes an overlapping vertex search unit 202E6 that acquires information related to a vertex overlapping with a vertex to be decoded from decoded vertices.

A mesh data decoding method according to an embodiment may comprise the steps of: receiving a bitstream including mesh data; and decoding the grid data. A grid data encoding method according to an embodiment may comprise the steps of: encoding grid data; and transmitting a bitstream including the mesh data.

In a mesh decoding device 200 according to the present invention: a motion vector calculation unit 202E4 makes the modes of motion vectors of N (N≥1) vertices that are continuous in decoding order the same; said N vertices constitute one group; the motion vector calculation unit 202E4 decodes, from a bitstream, a control signal capable of calculating a group size indicating the size of the group; and a flag acquisition unit 202E7 decodes a second flag for each of the vertices from a bitstream of a P frame when a first flag indicates Yes, sets a prediction mode of a vertex to be decoded to 2 when the second flag indicates Yes, and sets the prediction mode of the vertex to be decoded to other than 2 when the second flag indicates No.

The invention discloses a GaN HEMT power device grid degradation detection device and method, and belongs to the technical field of performance detection. The GaN HEMT power device grid degradation detection device comprises a pulse excitation source, a passive circuit, a sampling circuit, a controller and a driving circuit; the pulse excitation source is connected with the GaN HEMT power device to be tested through the passive circuit, the output end of the sampling circuit is connected with the input end of the controller, the output end of the controller is connected with the control end of the pulse excitation source through the driving circuit, and the controller collects a voltage signal VGS between a source electrode and a grid electrode in the GaN HEMT power device to be tested through the sampling circuit. The degradation degree of the grid electrode in the GaN HEMT power device to be detected is judged according to the voltage signal VGS, and the device and the method can detect the degradation degree of the grid electrode of the GaN HEMT power device and have the advantages of being easy to operate and low in cost.

The invention relates to the technical field of power systems, and discloses a grid-connected grounding topological structure of a flexible converter device without a connection transformer, which is based on a topological structure that a far-end three-winding transformer and a Z-type transformer are grounded through a small resistor. The problem that a three-phase alternating-current circuit breaker is difficult to quickly and completely switch off and switch on when a non-connection transformer is matched with a traditional arc suppression coil to be grounded can be solved. When a single-pole grounding fault occurs on the direct current side of the flexible device matched with the uncoupled transformer system, a large amount of direct current bias current on the side of the flexible device flows into the alternating current network side due to the fact that no coupled transformer exists between the alternating current network and the flexible device, and the topological structure can greatly reduce the influence of the direct current bias current on the three-phase alternating current circuit breaker at the moment. And each phase of the three-phase circuit breaker at the alternating current side can be quickly and completely switched off and switched on. In addition, the topological structure can limit the peak value of the fault current on the alternating current side when the system has a single-pole grounding fault on the direct current side.

The invention relates to the technical field of street lamp data transmission, in particular to a data transmission management method and system based on a wireless grid. According to the scheme, an MCU (Microprogrammed Control Unit), an RF (Radio Frequency) wireless module, a power supply module, an indication unit and a wireless antenna are arranged as data transmission equipment based on the wireless grid; carrying out networking setting of equipment for data transmission based on a wireless grid by taking a gateway as a convergent point; setting a multi-level subordinate path for each data transmission, judging whether a data disaster occurs in the system in real time, and if so, starting a data disaster emergency networking plan; and combining the plurality of data packets in a preset format to carry out data fast transmission. According to the scheme, the tree network based on the wireless grid is constructed, the gateway is set as the rendezvous point, networking is optimized, a subordinate path is configured for data transmission, efficient and stable transmission of street lamp data is achieved, the transmission efficiency is improved, and the data transmission requirement of intelligent management of an urban street lamp system is guaranteed.

To provide a temporal scalability function of displacement magnitude when an arithmetic coding method is used for displacement magnitude.SOLUTION: A mesh decoding device 200 according to the present invention receives a bitstream of atlases, base meshes, displacement magnitude, and textures encapsulated by NAL units, where a TID defined as the last 3 bits in a NAL header is Temporal_ID plus 1, and LayerID / R6 is defined as 6 bits immediately preceding the TID.SELECTED DRAWING: Figure 21

The utility model relates to the technical field of electronic circuits, and provides an energy storage equipment grid connection device and an energy storage system. An energy storage equipment grid connection device comprises an energy storage converter and a power-on preparation module. Wherein the energy storage converter is used for being connected with a power grid, and the power-on preparation module is connected with the energy storage converter through a direct-current bus. The power-on preparation module comprises a connection bus, a power-on switch, a slow charging branch, a voltage-sharing circuit, N interface units and a control unit. And the control unit is respectively connected with the power-on switch and the slow charging branch. The control unit can be used for controlling the slow charging branch to be switched on and controlling the power-on switch to be switched off at the same time, so that electric energy of the energy storage equipment can be discharged by the voltage-sharing circuit. When the pressure difference between at least two pieces of energy storage equipment is large, the energy storage equipment grid-connected device can discharge the electric energy of the energy storage equipment. And an implementation basis is provided for the energy storage equipment grid connection device to connect all the energy storage equipment into a power grid, so that the application range of the energy storage equipment grid connection device is expanded.

The invention relates to the application field of two-dimensional materials and electronic functional devices, and provides a graphene double-side grid-controlled transistor and a preparation method thereof. The graphene double-side grid control transistor comprises a substrate; the substrate insulating layer is positioned on the surface of the substrate; the graphene grids are symmetrically distributed on the two sides of the step structure; the graphene contact electrode is connected with the top of the graphene grid electrode and is used for applying grid electrode voltage; the metal shielding layer is formed on the top of the step structure, a first insulating layer is formed between the graphene grid electrode and the metal shielding layer, and the first insulating layer is used for isolating the graphene grid electrode from the metal shielding layer; the second insulating layer covers the step structure; the conductive film channel covers the second insulating layer; and the source-drain metal electrode is positioned at two ends of the step structure and is used for outputting an electrical signal. The graphene double-side grid-control transistor is beneficial to enhancing the grid-control effect of a sub-nanometer device grid length device and improving the conduction performance, and keeps good compatibility with a miniature process of the sub-nanometer grid length device.

A grid data transmission method according to an embodiment may comprise the steps of: encoding grid data; and transmitting the bitstream including the mesh data. A mesh data receiving method according to an embodiment may comprise the steps of: receiving a bitstream including mesh data; and decoding the grid data.

The invention provides a new energy grid connection strength evaluation method, system and device based on measured impedance and a medium, and relates to the field of power system stability analysis. The method comprises the following steps: acquiring three-phase electrical quantities of a plurality of grid-connected devices, and converting the three-phase electrical quantities into a dq coordinate system to obtain corresponding dq impedance; in a preset reference coordinate system, all the dq impedances are aligned; injecting current disturbance at a device grid-connected point, and establishing a full-system dynamic matrix of device and network dynamics; and calculating sensitivity based on the full-system dynamic matrix, and evaluating the equipment grid-connected strength according to the sensitivity. According to the method, the need for detailed parameters of the equipment is avoided, the dynamic model of the grid-connected equipment is obtained only through port measurement, the whole-system dynamic matrix describing the dynamic state of the system is established in combination with the network node admittance matrix, and the new energy grid-connected intensity ASC under the small-interference stability significance is calculated based on the matrix perturbation theory.

The application provides a kind of energy storage converter power device grid source feedback parallel current sharing circuit and method, belong to power electronics technical field.The application realizes the transient current balance when power device is parallel, avoids the risk that part of device is damaged due to bearing excessive current stress, effectively prolongs the service life of device, improves the reliability of entire power electronic system.Meanwhile, stable current balance can also reduce the electromagnetic interference caused by current imbalance, improve the anti-interference ability of system.Active gate control technology can dynamically adjust current change rate according to actual current condition, so that the switching speed of parallel power device is more matched, energy loss in switching process is reduced, and the efficiency of system is improved.In addition, stable current balance helps to improve the dynamic response performance of system, reduce the ripple of output voltage and current, and improve the power quality and overall performance of system.

A mesh decoding device 200 according to the present invention comprises: an atlas data decoding unit 207 that decodes an atlas bit stream and generates and outputs control information; a basic mesh decoding unit 202 that generates and outputs a basic mesh using the control information and the basic mesh bit stream as inputs; a subdivision unit 203 that uses the control information and the basic mesh as inputs and outputs a subdivision mesh and a subdivision vertex normal; a mesh decoding unit 204 that generates a decoding mesh by using the control information, the displacement amount, the subdivision mesh, and the subdivision vertex normal as inputs; and a boundary correction unit 208 that corrects the sub-mesh boundary with respect to the decoding mesh and outputs a boundary correction decoding mesh.

A mesh decoding device (200) according to the present invention includes: an atlas data decoding unit (207) configured to decode an atlas bit stream to generate and output control information. According to the present invention, it is possible to efficiently compress a displacement amount.

The present application relates to the technical field of mine digital twin, and more particularly to a digital twin construction method and system for mine mining working face. The state data sequence and communication delay parameters of the multi-source equipment of the mining working face are obtained, and the basic geometric bounding box is extracted. The feedforward pose offset is obtained, the directional translation of the bounding box front sequence surface sheet set is performed along the traction speed vector direction to generate a dynamic safety envelope area. The physical limit boundary is constructed by the hydraulic support connecting rod hinge parameter and the limit stroke of the push cylinder, the Boolean intersection operation is performed on the dynamic safety envelope area and the physical limit boundary to generate a target envelope area. According to the space intersection volume of the target envelope area and the adjacent equipment grid, the anti-interference judgment or the rendering pose update is performed. The present application can solve or at least alleviate the false alarm problem of the existing digital twin system caused by communication delay and omnidirectional space compensation, and provide a digital twin construction method and system for mine mining working face.