53results about How to "Reduce hardware complexity" patented technology

The invention provides a tactile sensing device and a tactile sensing method, which can be applied to the technical field of tactile sensing. The tactile sensing device comprises a tactile sensor which comprises a plurality of neodymium iron boron magnetic structures; the first end of the measuring circuit is electrically connected with the first end of the tactile sensor, the second end of the measuring circuit is electrically connected with the second end of the tactile sensor, and the measuring circuit is used for continuously detecting the resistance value of the tactile sensor to obtain a resistance sequence under the condition that the tactile sensor is subjected to external acting force; and the processor is electrically connected with the output end of the measuring circuit and is used for determining a target area where an external acting force acts on the tactile sensor according to the resistance sequence and determining the magnitude of the external acting force acting on the target area of the tactile sensor according to the target area, the resistance sequence and the initial three-dimensional shape of the tactile sensor so as to obtain a force sequence.

The invention belongs to the related technical field of neuromorphic visual sensors, and discloses an eagle-eye bionic dynamic visual sensor and a preparation method and application thereof, the visual sensor comprises a dielectric layer substrate, a functional layer and a cross array structure composed of a bottom electrode, an insulating layer and a top electrode which are arranged from bottom to top; wherein the functional layer is of a core-shell heterojunction structure formed by noble metal nanoparticles and a two-dimensional metal chalcogenide. According to the obtained core-shell heterojunction structure, an electron capture and slow release phenomenon caused by local surface plasmon resonance effect excitation and interface defects of precious metal nanoparticles is constructed on a device, and the sensor can realize an eagle-eye-imitating dynamic visual function; and the visual sensor can perform eagle-eye-imitating dynamic visual processing on image information due to a unique electronic synapse function while realizing an image optical sensing function, so that integration of sensing and preprocessing functions is realized.

The invention provides a multi-path harmonic waveform output method and device, a storage medium and output equipment, and relates to the technical field of harmonic power sources. The output method comprises the following steps: under the condition that a controller receives a waveform output signal, determining a period register value corresponding to a timer unit based on a waveform configuration parameter; determining a digital-to-analog conversion output value corresponding to each waveform point data of the harmonic waveform to obtain waveform point conversion information; and controlling the timer unit to start counting, and outputting a corresponding digital-to-analog conversion output value by the digital-to-analog conversion channel based on the to-be-output waveform point data and the waveform point conversion information under the condition that a counting value of the timer unit is matched with a period register value. The invention designs the waveform output equipment which can pass through the MCU and the digital-to-analog conversion chip, and provides a method capable of realizing synchronous output of multiple paths of harmonic waveforms, so that the hardware complexity of the waveform output equipment is reduced, and the cost of the waveform output equipment is reduced.

The invention belongs to the technical field of wireless communication sensing integration, and discloses a stacked intelligent metasurface enabled communication sensing integrated beamforming design method, which comprises the following steps: S1, establishing a mathematical model of a stacked intelligent metasurface enabled communication sensing integrated system; s2, constructing a multi-objective optimization problem of the SIM-ISAC system; and S3, designing a double-normalized differential gradient descent algorithm to solve an optimization problem. By the adoption of the stacked intelligent metasurface enabled sensing integrated beam forming design method, downlink communication and radar target detection are achieved, and the sum rate of users is maximized by optimizing a multi-layer phase shift matrix of the stacked intelligent metasurface. Minimizing a mean square error between the normalized sensing beam pattern and the expected beam pattern; on the basis of a double-normalization differential gradient descent algorithm, the problem of non-convex multi-objective optimization is solved, multi-point expected beam forming in a two-dimensional angle domain is achieved, and acceptable balance is achieved in the aspect of communication performance.

The invention relates to the field of floating-point multiplication, and particularly discloses a floating-point multiplier based on an FPGA, a calculation method and equipment, and the floating-point multiplier comprises a symbol calculation module which is used for determining the symbol of a target output floating-point number through an exclusive-OR gate and the symbol bits of a first input floating-point number and a second input floating-point number; the index addition module is used for adding the indexes of the first input floating-point number and the second input floating-point number and subtracting the deviation value of the corresponding format to obtain the index output of the target output floating-point number; the binary multiplier module is used for carrying out multiplication operation by using a Karatsuba algorithm and a Urdhva-Tiryagbhyam algorithm based on the mantissa bit widths of the first input floating-point number and the second input floating-point number so as to obtain a mantissa product of the target output floating-point number; and the result normalization module is used for performing normalization operation based on the mantissa product. The calculation delay can be reduced, and the percentage increase of the hardware area is also reduced.

The application provides a kind of intelligent metasurface assisted near-field time division integrated sensing method and system, it is related to wireless communication field.The application designs integrated sensing system by introducing RIS and single antenna receiver, avoids complex full-duplex base station and multi-antenna receiver, significantly reduces hardware complexity and implementation cost under the premise of ensuring high-quality communication and sensing performance;The adjustable frame structure designed separates the communication subframe and the sensing subframe completely, decouples the communication beam optimization and the sensing signal design, respectively realizes the communication and sensing functions in a purer signal environment;In the communication subframe, the communication and rate maximization are realized, and in the sensing subframe, the sensing capability is enhanced through the transmission beam pattern matching, which significantly improves the overall communication rate and sensing accuracy of the system;Finally, a virtual multi-dimensional receiving signal of multiple passive targets in the near field of RIS is constructed through repetition coding design, and then the 2D-MUSIC algorithm is used to estimate the target angle and distance parameters.

This invention discloses a virtual synchronous low-voltage ride-through control method and system for wind turbines with energy storage coordination. The method includes: real-time acquisition of operating parameters of the wind turbine grid connection point and the energy storage system; determining low-voltage faults based on the effective voltage value of the grid connection point and calculating the voltage drop depth; adaptively updating the virtual inertia and damping coefficient based on the drop depth, and calculating the stator transient flux linkage to generate rotor compensation voltage to suppress overcurrent and electromagnetic torque impact; and performing differential correction based on the updated inertia and damping during the fault recovery phase to suppress active power and frequency oscillations, while simultaneously controlling the energy storage system to output reactive power support and active power support based on voltage and frequency deviations. The energy storage system is a hybrid energy storage system composed of lithium batteries and supercapacitors. This invention adopts a unified virtual synchronous generator control structure, eliminating the need for control mode switching and additional hardware, and effectively suppressing rotor overcurrent and low-frequency oscillations.

The utility model relates to mahjong machine field discloses push and lift tile device and automatic mahjong machine, including frame, install the tile board that lifts, driver and the carousel with the push tile head on the frame, and driver drives the swing of lift tile board and drives carousel rotation push tile, still install the sliding block and the swing bar on the frame, the cam is installed to the one end of sliding block, and driver drives the rotation of cam through gear transmission, and the cam drives the linear motion of sliding block on the frame, the other end of sliding block is connected with swing bar and drives its swing, and the swing bar swings and drives the lift of tile board, through single driver, carousel rotation push tile and lift tile board swing lift can be realized simultaneously, need not additionally add power component, reduce the number of power source, reduce the hardware cost and assembly complexity of overall device, avoid the cumbersome problem of multiple power source coordination control simultaneously, make power output more concentrated and efficient.

The present application relates to the technical field of image processing, and more particularly to a projection image optimization method based on image processing, which first extracts image block samples from a target scene, uses an industrial camera to collect data and combines a texture separation model to accurately extract features to determine key texture distortion anchor points. Secondly, according to these anchor points, the non-flat wall surface is divided into multiple distortion transmission areas to realize local fine modeling. Then, the preset imaging parameters are independently optimized in multiple channels for different areas to generate projection correction parameters adapted to each area. Finally, the optimized parameters are used to control the imaging of the projection equipment. This method effectively decouples the inherent texture of the wall surface and the interference of the projection content, solves the problems of non-linear distortion, uneven brightness and blurring caused by complex curved surfaces through adaptive correction by area, significantly improves the clarity, contrast and visual consistency of the projection image, and does not require expensive three-dimensional scanning hardware, with high robustness and low cost advantage.

This invention relates to a fluid velocity and flow rate detection device, and pertains to the field of fluid detection technology. The device includes: a fixed small steel plate and an elastic sensing unit; both the fixed small steel plate and the elastic sensing unit are disposed inside the fluid pipe to be detected; wherein, the lower end of the fixed small steel plate is fixedly connected to the inner wall of the fluid pipe, and a fixing part is provided at its upper end; the elastic sensing unit includes at least two elastic steel plates, one end of each elastic steel plate converging and connecting to the fixing part, and the elastic steel plates are radially distributed with the fixing part as the center; a first sensor is assembled at the other end of each elastic steel plate. This invention has a wide range of applicable media, strong anti-interference ability, and stable detection.

This invention relates to the field of communication technology, specifically to a collision detection method and related equipment for ultra-short-range shared medium networks. The method includes: a master node broadcasting downlink messages on a downlink channel, and slave nodes sending uplink messages within a shared uplink contention window; each slave node starting an acknowledgment response timer for each sent uplink message and waiting to receive an acknowledgment message from the master node; the master node performing frame check sequence verification on the received uplink messages, and if a verification error is found, sending a verification error alarm message to the slave node at the corresponding source address; the slave node determining a serious collision when the acknowledgment response timer expires, or determining a collision event when it receives a verification error alarm message; and the slave node executing a backoff strategy based on the collision detection results. This invention enables efficient and reliable collision detection without adding additional hardware receivers, reducing system costs and design complexity, and is suitable for ultra-short-range scenarios such as intra-robot communication.

The invention belongs to the technical field of ion electrodes, and particularly relates to a variable-pitch double-helix ion electrode and a guider. Comprising a first spiral electrode and a second spiral electrode, the axes of the first spiral electrode and the second spiral electrode coincide, the first spiral electrode and the second spiral electrode are symmetrical by rotating by 180 degrees with the axes as a rotating shaft, and the spiral diameter of the first spiral electrode and the spiral diameter of the second spiral electrode are constant; the screw pitches of the first spiral electrode and the second spiral electrode are gradually reduced from one end to the other end, so that ion radial constraint and axial driving are realized; when radio frequency voltage is applied to the variable-pitch double-helix ion electrode, steep radial equivalent potential and slowly-changed axial equivalence can be formed at the same time, so that the variable-pitch double-helix ion electrode provided by the invention can provide an electric field for ion radial constraint and axial focusing at the same time.

The present application relates to the technical field of battery charging, and discloses a charging system, a charging control method, a terminal and a medium, wherein the system comprises a monitoring module, a charger and a battery; the monitoring module is used to obtain the charging voltage of the battery, and calculate the charging voltage as the closed-loop target voltage of the constant voltage loop of the first constant voltage loop after temperature compensation; the calculation unit is used to calculate the target voltage according to the closed-loop target voltage of the constant voltage loop and the closed-loop target current of the constant current loop, and transmit the target voltage as the closed-loop target voltage of the charger to the second constant voltage loop; the charger is used to obtain the output voltage of the charger according to the closed-loop target voltage of the charger and the current limiting target current of the current limiting loop of the charger, and enable the charger to charge the battery based on the current output voltage; the monitoring module is also used to determine the value of the charging current in real time during the charging process based on the dual-loop competition algorithm of the first constant voltage loop and the constant current loop, and stop charging until the charging current is zero.

The embodiment of the invention provides a data processing method and device, a storage medium and electronic equipment, and relates to the technical field of computers, and the method comprises the steps that a transmitting end obtains first I2S audio data, carries out the inter-frame splitting of the first I2S audio data, and obtains at least one first I2S data frame; encoding each first I2S data frame by using a Hamming code encoder to obtain an encoded second I2S data frame; the Hamming code encoder is used for encoding 4-bit data code words into 7-bit data code words, and data encoded by the Hamming code encoder is used for supporting error detection and error correction of the data; performing recombination according to the encoded second I2S data frame to obtain second I2S audio data; and sending the second I2S audio data to a receiving end based on an I2S protocol. Therefore, by grouping the frames and adopting (7, 4) Hamming codes for coding, the error correction capability is improved under the condition of increasing the minimum error correction bits, the reliable transmission of the I2S audio data is realized, and the hardware complexity is reduced.

The invention discloses smoke detector interface equipment compatible with multiple protocols. The interface device comprises a plurality of interface terminals, a protocol and interface conversion module, a switching assembly and a detection module. The plurality of interface terminals at least comprise a first interface terminal group for a first communication mode and a second interface terminal group for a second communication mode; and the protocol and interface conversion module is used for performing data interaction with an upper computer or a control host, and analyzing and converting data according to a plurality of preset communication protocols. And the switching assembly is arranged between the plurality of interface terminals and the protocol and interface conversion module, comprises a switching device with a common end and a normally open / normally closed end, and is used for switching an electric connection path between the first communication mode and the second communication mode. And the detection module is electrically connected with the plurality of interface terminals, and is used for sending a detection signal to the currently accessed smoke detector, detecting an interface type and / or a protocol type of the current smoke detector based on a feedback signal, and outputting a switching control signal to the switching assembly according to a detection result to realize automatic switching of interface channels. According to the invention, the smoke detectors with various interface forms and various communication protocols can be docked in the same equipment, automatic identification and adaptation of the interfaces and the protocols are realized, repeated development of hardware and software is reduced, field configuration is simplified, and universality and use flexibility of the system are improved.

The invention discloses a delay search method and system for a delay phase-locked loop, a computer and a medium, and the method comprises the following steps: enabling a signal to activate a finite-state machine, and jumping to a search state; based on the preset configuration of the finite-state machine, linear step length search is carried out in the guard band range to locate a target phase, if the target phase is not found in the guard band range, linear step length search is carried out again after the guard band range is expanded, and when the real-time phase is equal to the target phase, a symbol state is entered; in the symbol state, the slope of real-time phase change is calculated, and symbol matching is verified; and if the symbols are matched, entering a phase-locked state, fixing a real-time delay change value in the phase-locked state, and pulling up a phase-locked loop activation signal. According to the invention, the digital code which is output by the phase discriminator and represents the phase relationship between the reference clock and the input clock can be received, the delay is searched in a linear search mode, the control signal is sent to the delay line, and the clock delay is changed until the clock meeting the requirement is generated.

The utility model discloses a kind of continuously pressurized stable liquid supply systems, comprising: chemical distribution module is connected with external nitrogen pipeline, the output of the chemical distribution module is communicated with control box, the output of the control box is communicated with valve group box, the output of the valve group box is communicated with process machine platform;The chemical distribution module includes pressure sensor and PLC module, the pressure sensor is located at the output of chemical distribution module;The pressure sensor is electrically connected with PLC module.Beneficial effect: improve liquid supply precision, by real-time monitoring the pressure of chemical distribution module chemical distribution module outlet, and according to pressure change automatic control start-stop of liquid supply pump, effectively keep system pressure stable in set range, to realize the accurate supply of chemical, meet the high-precision requirement of chemical consumption control in production process.

The invention discloses a foot end slip detection and compensation method for a six-wheeled composite robot, and relates to the technical field of anti-slip of robot movement. The method mainly comprises the three steps that firstly, a sliding detection model is built based on a long short-term memory (LSTM) network model, and the model predicts the sliding amount of each foot end only by taking error information of an actual motion state and an expected state of a fuselage as input; secondly, according to the predicted slip amount, obtaining an instantaneous steering center and a compensation rotation angle generated by slipping of the robot through geometric calculation; and finally, according to the calculated steering parameters, the robot is controlled to execute pure rolling steering motion, a supporting polygon is reconfigured through the strategy that the non-slipping swing legs fall down and the slipping legs are lifted up, and motion errors are compensated in real time. The method has the beneficial effects that the hardware cost is low, the system is light in weight, the real-time performance and the self-adaptability are high, and the motion stability of the robot on the complex terrain can be effectively improved.

The invention relates to a carbon ion excitation source device and a vacuum coating system. The carbon ion excitation source device comprises an anode (1); the first arc striking assemblies (2) are arranged on one side of the anode (1) in the first direction, and each first arc striking assembly (2) is provided with a first arc starting part, a first ignition part and a first insulation part; the supporting assembly (3) is provided with a supporting part (30) for accommodating the plurality of first arc striking assemblies (2) and supplies power to the first arc striking assemblies (2); the multiple target materials (4) are connected with the side, away from the supporting structure, of the supporting assembly (3) in the first direction, and the multiple target materials (4) correspond to the multiple first arc striking assemblies (2) respectively; wherein the plurality of target materials (4) are configured to respectively form electric arcs with the anode (1).

This invention relates to the field of heat dissipation, and discloses a computing system and electronic equipment, including: a housing with at least two enclosures inside, each enclosure containing an immersion medium; electrical connectors on the enclosure walls and electrical components immersed in the immersion medium inside the enclosures, the electrical components being electrically connected to the electrical connectors; a power supply module located outside the enclosures and electrically connected to the electrical connectors of each enclosure, the power supply module supplying power to the electrical components; and a fluid supply / return component located outside the enclosures and detachably connected to the enclosures, used to provide the immersion medium to the enclosures or to return the immersion medium, the power supply module and the fluid supply / return component being in thermally conductive contact. By separating the electrical components into multiple enclosures, independent maintenance is achieved without draining the fluid; the externally located power supply module and thermally coupled fluid supply / return component avoid heat accumulation, improve heat dissipation accuracy, eliminate the need for additional heat dissipation structures, simplify design, reduce costs, and enable independent operation and maintenance of the power supply and computing units, thereby improving maintenance efficiency.

The invention provides a dual-optical-path fire smoke detection smoke chamber optimization system and method, and relates to the technical field of fire detection. The method specifically comprises the following steps: synchronously acquiring light intensity signals of a main light path and an auxiliary light path, calculating an instantaneous ratio and a change rate of the main light path, and inputting into a weight analyzer to obtain a weight coefficient so as to generate a comprehensive light intensity signal; and extracting time sequence features based on the second time window, and outputting a fire probability and a confidence coefficient in combination with a pre-trained fire analysis model so as to optimize an alarm threshold value of the dual-optical-path fire smoke detection system. According to the invention, the fusion weight of the dual-optical-path signal can be dynamically adjusted, a virtual adjustable scattering angle is designed at the algorithm level, and the fire alarm fixed threshold is dynamically adjusted by comprehensively analyzing the fire probability and the detection confidence coefficient, so that the detection sensitivity of the system to different smog and the anti-interference capability in a complex environment are improved, and the system has high practicability. And meanwhile, the false alarm probability is effectively reduced.

The application discloses an adaptive path planning and pollution plume tracking method for underway monitoring, and comprises the following steps: a space model of a monitoring area is established by acquiring pose information, motion constraints and a sensor sampling period of a mobile measurement platform; pollution concentration and position information are collected in real time during platform travel to form observation data; a level set evolution method is used to construct and update a boundary representation of a pollution plume based on the observation data to depict the spatial variation of the plume; in combination with the boundary variation information, a rolling time domain optimization algorithm is used to generate a measurement path in a rolling update time range to guide adaptive adjustment of a travel route of the platform; the underway monitoring is completed by executing the path, and boundary tracking results of the pollution plume and corresponding spatial position determination results of pollution sources are output. The application is suitable for mobile monitoring and positioning tasks in complex environments.

Methods and apparatuses for wireless communications are disclosed. The first node transmits a first message, the first message indicating a plurality of measurement configurations, the plurality of measurement configurations all being available or all being unavailable. The above method reduces signaling overhead and latency, reduces hardware complexity and cost required for AI / ML, and improves overall system performance.

The invention discloses an automobile acousto-optic touch integrated controller hardware device, which relates to the technical field of an integrated hardware controller of an intelligent cabin system, and comprises an MCU (Microprogrammed Control Unit), the MCU is connected with the control signal input end of each functional module through a special control pin to realize accurate control instruction sending and state monitoring signal receiving of different functional modules, and the MCU is connected with the control signal input end of each functional module through a special control pin; the working time sequence and data interaction among the modules can be efficiently coordinated; the atmosphere lamp adjusting module is electrically connected with a corresponding port on the MCU, and the atmosphere lamp adjusting module supports three communication control modes of a CAN (Controller Area Network), an LIN (Local Interconnect Network) and a UART-CAN; core hardware circuits required by headrest sound drive, seat massage control and vehicle atmosphere light adjustment are highly integrated, visual, auditory and tactile control in the vehicle driving process is covered, and compared with a traditional distributed controller, a large amount of circuit board space occupation and connecting wiring harnesses are reduced, and the cost is reduced. And the hardware cost and the wiring complexity of the whole vehicle are reduced.

The invention relates to the technical field of image processing, and particularly discloses a charging cover pose detection method based on machine vision and a storage medium, and the method comprises the steps: employing a monocular camera to respectively shoot pictures of a charging cover which is not marked with laser rays and a charging cover which is marked with laser rays, and recording the pictures as a first image and a second image; extracting laser rays according to the first image and the second image, and extracting at least three edge feature points of the charging cover from the laser rays; calculating a feature point cloud according to each edge feature point; matching the feature point cloud with a pre-obtained target point cloud to obtain a corresponding homogeneous transformation matrix; and determining pose parameters of the charging cover according to the homogeneous transformation matrix. According to the invention, active detection of the pose of the charging cover is realized by adopting a monocular camera and laser line marking mode, and meanwhile, the method has the core advantages of low cost, low hardware complexity and ambient light interference resistance.

This disclosure presents embodiments of a single-lens-based image display method, apparatus, device, medium, and product. One specific implementation of the method includes: acquiring a scene image data stream captured by a target camera sensor; encoding the acquired scene image data stream to obtain a main stream; encoding the acquired scene image data stream based on a target region to obtain a secondary stream; and pushing the obtained main and secondary streams to an associated terminal device, causing the terminal device to display the main image of the corresponding main stream and the sub-image of the corresponding secondary stream. This implementation requires only a single lens to achieve a dual-image effect, reducing hardware costs and assembly complexity, lessening restrictions on product structure, and meeting users' personalized needs for selecting magnified areas.

The invention relates to the technical field of computers, and provides a speed limit processing method, a speed limit processing device, a computer readable storage medium and electronic equipment, and the speed limit processing method comprises the following steps: receiving a network message; determining a diversion processing strategy for the network message according to the indication identifier associated with the network message; the diversion processing strategy comprises cross-cluster diversion and intra-cluster diversion; when the flow guide processing strategy is cross-cluster flow guide or intra-cluster flow guide, determining a target gateway node having a unique mapping relationship with a bandwidth packet identifier of the network message, and guiding the network message to the target gateway node; and executing bandwidth speed limiting processing on the network message through the target gateway node. According to the invention, centralized speed-limiting processing of packet traffic of the same bandwidth can be realized, and consistency, accuracy and high performance of a speed-limiting strategy are effectively guaranteed.