52results about How to "Avoid frequent switching" patented technology

The invention discloses a wind and light storage cooperative control system based on source load matching. The system aligns a source load storage network and communication information and carries out credible evaluation; wind, light and load are predicted, and uncertainty levels are given; calculating a matching degree and a short plate hot spot, and combining network side hard constraints such as voltage, power flow and reverse transmission to obtain an acceptable boundary; when the matching is qualified and the complementary energy is still available, identifying the complementary energy / energy shortage and the reason, quickly checking the transferable margin and loss by the edge, generating a routing plan containing retention time and action budget, and scheduling the stored energy and the flexible load in a rolling manner; meanwhile, the risk budget and standby are written back according to feasibility, prediction uncertainty and communication quality, gray release and automatic rollback are achieved in cooperation with degradation and playback scoring, and consumption and traceability are improved.

The utility model relates to visual calibration target device technical field, specifically disclose a kind of visual calibration target device of steel trestle dynamic displacement monitoring, including target mechanism, the upper end side of the target mechanism is provided with wire arrangement mechanism, the front lower end of the target mechanism is provided with auxiliary flickering mechanism;The target mechanism includes mounting plate, suspension pole, target main body, wiring seat, lamp holder, outer ring reference lamp bead, intermediate layer reference lamp bead and inner ring reference lamp bead.This scheme can adapt to different monitoring distance and camera focal length by the reference lamp bead design of multiple circle layer distribution, ensure target quick identification and stable tracking by outer ring double-layer concentric circle lamp bead under long-distance large visual angle, provide high-precision positioning by intermediate layer polygon lamp bead in medium distance, and rely on snowflake inner ring lamp bead to realize ultimate calibration in nearest distance, only single target can cover the full-scale monitoring requirement from bridge overall shaking to local slight deformation.

The utility model relates to the technical field of teaching equipment, and specifically discloses a single-person command and training device for virtual-reality combined emergency drills, which includes: a table body, a first display screen component and a second display screen component; a VR device cabin and a mainframe cabin are detachably arranged on the table body; the VR device cabin is used to accommodate the VR device; the mainframe cabin is used to accommodate the mainframe; the first display screen component and the second display screen component are both installed on the tabletop of the table body, and the included angle between the display end faces of the first display screen component and the second display screen component is 90 degrees to 180 degrees; the first display screen component is used to store training materials and perform screen sharing with multiple student terminals; the second display screen component is wirelessly connected to multiple VR devices, and is used to issue VR tasks to each VR device and receive the training data returned by each VR device. The utility model can not only improve the training efficiency of the device, but also improve the layout rationality of each accessory.

The application discloses a gateway-based CAN bus redundancy routing method and device, and is applied to a CAN network comprising a gateway controller, a first CAN bus link and a separately arranged second CAN bus link. The method comprises the following steps: firstly, obtaining a sending moment of a sending request issued by an application layer and an acknowledgement moment of a sending completion interrupt generated by a bottom layer hardware; based on the acknowledgement moment and the sending moment, obtaining a real-time load parameter of the link under a current message; if the real-time load parameter exceeds a preset load parameter threshold, determining that the first CAN bus link is in an abnormal state of high load, triggering a dynamic routing switching, and switching data transmission of a target node being the preset node to the second CAN bus link for transmission. The application can effectively monitor the bus state without occupying additional bus bandwidth and with low calculation power consumption, realizes dynamic targeted switching on key nodes, and guarantees the real-time performance and reliability of key service data of the whole vehicle.

The invention discloses a communication fault processing method and device for a vehicle-mounted terminal. The method comprises the following steps: periodically detecting a network registration state of the vehicle-mounted terminal; and if it is determined that the network is successfully registered, identifying connection states of the plurality of preset network access channels and obtaining a result. And based on the result, selecting a first target network access channel which does not establish effective connection within the first set duration from the channels, and performing progressive connection retry between the first target network access channel and the first target network access channel. And meanwhile, selecting a second target network access channel which does not establish effective connection within a second set time length (greater than the first set time length) from the channels, accumulating connection failure time of the second target network access channel, and sequentially executing different levels of recovery operations according to different preset connection threshold values. Besides, when the network registration state satisfies a preset abnormal condition, network injection abnormity is determined, network injection abnormity time is accumulated, and recovery operations of different levels are executed in sequence according to different preset network injection thresholds so as to guarantee stable communication of the vehicle-mounted terminal.

The invention relates to an unmanned logistics vehicle steering control method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring state information and environment information of a vehicle; respective steering cost of various preset steering modes is calculated according to the state information and the environment information, wherein the various preset steering modes comprise Ackerman steering, front and back double-steering and bidirectional driving; the steering mode of the current vehicle is obtained, if the steering mode with the minimum steering cost is different from the current steering mode and the cost difference between the steering mode with the minimum steering cost and the current steering mode is larger than a preset switching threshold value, the steering mode is determined as a target steering mode, and otherwise, the current steering mode is maintained; and controlling the vehicle to run in the target steering mode. By the adoption of the method, the unmanned logistics vehicle can autonomously select the optimal steering mode, frequent mode switching is avoided, and the driving efficiency and smoothness in different scenes are improved.

The application relates to a power distribution network voltage control method based on a reactive virtual power plant, which comprises the following steps: constructing a double-layer collaborative regulation model based on discrete and continuous reactive regulation equipment in the power distribution network under the management of the reactive virtual power plant, and establishing power distribution network physical constraints; under the power distribution network physical constraint condition, day-ahead scheduling converts the optimization control of the discrete reactive regulation equipment into a first multi-agent reinforcement learning of a discrete action space strategy for solving, and generates day-ahead scheduling planning to be issued to an intra-day correction layer; under the conditions that the power distribution network physical constraints and the day-ahead scheduling plan are taken as boundary constraints, intra-day correction converts the control of the continuous reactive regulation equipment into a second multi-agent reinforcement learning of a continuous action space strategy for solving, and generates intra-day correction instructions; the continuous reactive regulation equipment is adjusted based on the intra-day correction instructions to obtain node voltage in the power distribution network; the node voltage in the power distribution network is fed back to the day-ahead scheduling layer to realize closed-loop collaboration of voltage optimization regulation.

The invention provides a communication method and device based on queue pair switching, equipment, a medium and a program product, and relates to the technical field of network communication, and the method comprises the steps: determining a to-be-communicated target node, determining the state information of a first reliable connection queue pair between the to-be-communicated target node and the state information of the first reliable connection queue pair, the state information at least comprises a state machine value of the first reliable connection queue pair and a transmission failure timestamp; when the value of the state machine of the first reliable connection queue pair is in a first state and the time interval between the transmission failure timestamp and the current moment is smaller than a preset time interval threshold value, determining to adopt a second reliable connection queue pair to communicate with the target node; and when the value of the state machine of the first reliable connection queue pair is a first state and the time interval between the transmission failure timestamp and the current moment is greater than a preset time interval threshold, determining to communicate with the target node through the first reliable connection queue pair. The efficiency of large-scale training tasks can be improved.

The utility model relates to an automatic water supply control device, it includes: water pool, the depth of water pool is H, first liquid level switch sets up in water pool, and the height of distance water pool's bottom is L, second liquid level switch sets up in water pool, and the height of distance water pool's bottom is S, first relay, first liquid level switch's output end is connected with first relay's trigger input end, alarm device, second liquid level switch's output end is connected with alarm device, inlet pipe, one end is connected with water source, and the other end is led into water pool, electromagnetic control valve sets up on inlet pipe for controlling the on-off of water route in inlet pipe, the control end of electromagnetic control valve is connected with first relay's output end, wherein, 0.2H <= L <= 0.3H, 0.7H <= S <= 0.8H. The application can realize the water level monitoring for factory production water pool, and can realize automatic water supply, and work is safer and more reliable.

The utility model provides a scalp tensioning device and a hair transplantation seat comprising the scalp tensioning device, the scalp tensioning device is arranged on the hair transplantation seat, the scalp tensioning device comprises a contact part, a driving part and a driving part, the contact part is used for being in contact with the scalp, and the driving part is used for driving the driving part to rotate. The driving part is arranged on the hair transplanting seat, the driving part is electrically connected with a control module of the hair transplanting seat, and the driving part is used for driving the contact part to tension or loosen a hair follicle extraction area of the scalp; the adjusting mechanism is arranged on the hair transplanting seat, and the adjusting mechanism is used for driving the driving part to rotate, so that the position of the contact part corresponds to the position of the scalp. By arranging the contact part and driving the contact part to move through the driving part to replace the mode that the scalp is tensioned through a silica gel rope, tensioning of the scalp of a user is achieved, the tensioning degree is guaranteed, and meanwhile the automation degree is higher compared with the mode that the silica gel rope is tensioned through hands.

The application relates to the technical field of body sense interaction and virtual character control, and discloses a surfboard body sense input and character linkage system, which comprises a board body, a tension detection unit, a posture detection unit and a central processing unit. The system collects cable tension through the tension detection unit, collects an original pitch angle and a roll angle through the posture detection unit, and a decoupling module is built in the central processing unit. A mechanical coupling pitch angle is calculated according to the cable tension and a preset mechanical coupling coefficient, the original pitch angle is subtracted by the coupling pitch angle to obtain a net pitch angle, so that the physical torque interference is eliminated and a speed instruction is generated. Meanwhile, the system dynamically adjusts a roll dead zone threshold according to the tension intensity by using a dead zone module, and identifies a drift state based on a motion time window and a multi-dimensional parameter threshold through a judgment module. The application effectively solves the interference problem of the cable tension on posture recognition, and realizes accurate judgment and stable control of complex combined actions.

This invention relates to a method for energy saving and pressure pulsation suppression in the hydraulic system of engineering vehicles, comprising the following steps: S1: Real-time acquisition of the operating parameters of the hydraulic system; S2: Inputting the operating parameters into a pre-constructed joint prediction model of energy consumption and pulsation to obtain predicted energy consumption and pressure pulsation values ​​in the future time domain; S3: Using the minimum weighted sum of the predicted energy consumption and pressure pulsation values ​​as the objective, a rolling optimization algorithm is used to solve for the optimal control parameter sequence; S4: Applying the first control parameter in the optimal control parameter sequence to the adjustable element of the hydraulic system. This invention can save energy and reduce consumption, accurately regulate and adapt to different operating conditions.

This application provides a 3D Gaussian rendering optimization system and method based on CPU hierarchical splitting and GPU driving, relating to the field of 3D graphics rendering technology. This application divides the 3D Gaussian scene into multiple bounding boxes on the CPU side, determines the view distance level, protection level, and reconstruction cost level of each bounding box, and uses the highest of these three levels as the lower limit of the target level. The scheduling module adjusts the current rendering level frame by frame, determining the summary state, partial unfolding mode, or unfolded state based on screen error and GPU budget. On the GPU side, representative Gaussian points and unfolded 3D Gaussian points are uniformly sorted and rendered, and the frame rate and the total number of activated 3D Gaussian points are fed back. This reduces the amount of data submitted, takes into account the protection of key areas, achieves smooth hierarchical transitions, and forms a rendering feedback loop, improving the frame rate stability and resource utilization of real-time rendering.

The application relates to a chopper control method and device, which comprises the following steps: calculating a braking power coefficient according to a motor braking force and a motor rotating speed; setting a chopper control mode according to a traction braking state and the braking power coefficient; if the current traction braking state is a traction mode or a braking mode and the braking power coefficient is less than a first preset threshold, setting the current chopper control mode as a first chopper control mode; if the current traction braking state is a braking mode and the braking power coefficient is greater than a second preset threshold, setting the current chopper control mode as a second chopper control mode; if the current traction braking state is a braking mode and the braking power coefficient is not less than the first preset threshold and not greater than the second preset threshold, keeping the last chopper control mode as the current chopper control mode; and performing chopper control according to a chopper duty cycle calculated according to the current chopper control mode.

The application discloses a dynamic load balancing method suitable for a weak network environment and belongs to the technical field of network load balancing. The method comprises the following steps: step 1, multi-dimensional link state collection is carried out in the network, real-time monitoring of the physical layer and the transmission layer key performance indicators of each candidate path is carried out, and a comprehensive measurement value is calculated for each path; step 2, a reliable path set for load balancing is dynamically screened out; step 3, the flow distribution weight of each path is dynamically calculated and adjusted, including dynamic weight calculation based on the inverse ratio of efficiency, adaptive adjustment of the sensitivity index and weight fine adjustment based on real-time congestion; step 4, stability control and oscillation suppression are carried out; and step 5, different upper-layer applications are identified, flow classification identification and strategy differentiated execution are realized according to different upper-layer application requirements.

The present application belongs to the field of vehicle-mounted millimeter wave radar data processing, and particularly relates to a fence identification method, system and electronic device. The fence identification method comprises: obtaining a radar view of a vehicle radar, and the radar view comprising a plurality of point clouds; establishing a coordinate system for the radar view with the vehicle radar as the origin and the vehicle head direction as the positive direction of the longitudinal coordinate; dividing the coordinate system into a plurality of unit intervals along the transverse coordinate axis direction, and any unit interval being partially overlapped with its adjacent unit interval; screening out a candidate fence according to the number of point clouds falling into the unit interval; and identifying a target fence from the candidate fence through the transverse coordinates of the point clouds. The fence identification method of the present application can identify the target fence without complex traversal and repeated calculation, and has high reliability.

The utility model discloses a kind of cyclic waste heat recovery equipment, including air compressor and heat recovery unit, the side of air compressor is equipped with oil circuit pipeline, a plurality of first gate valves are installed on oil circuit pipeline, one end of oil circuit pipeline is connected with heat recovery unit;The utility model is equipped with heat recovery unit and so on by setting oil circuit pipeline, the heat in the oil circuit pipeline in air compressor will be transferred to heat recovery unit by oil circuit pipeline, cold water in heat preservation water tank is discharged to heat recovery unit by first connecting pipe and carries out heat exchange, high-temperature oil in oil circuit pipeline is cooled, while the water after temperature rise is backflowed to heat preservation water tank by first connecting pipe, discharge through second connecting pipe for subsequent use, the temperature and position of water are detected by temperature sensor and liquid level sensor on the top of heat preservation water tank, signal is transmitted to electric three-way switch valve on tap water connecting pipe, whether water is needed is judged, and energy consumption is reduced by making full use of heat.

The present application relates to the technical field of power system control, in particular to a photovoltaic energy storage control method and system based on an MPPT controller, comprising: determining the energy loss of battery energy storage control at the i-th moment according to the fluctuation of battery charge and discharge power at the i-th moment and the change of energy conversion efficiency of battery energy storage control in a preset time period; determining the coupling parameter according to the energy loss of battery energy storage control at the i-th moment and the battery energy storage control deviation coefficient; determining the stable term of battery energy storage control at the i-th moment according to the difference between the energy loss of battery energy storage control at the i-th moment and the average energy loss and the coupling parameter; optimizing the battery energy storage control objective function according to the stable term of battery energy storage control at the i-th moment to obtain the optimized battery energy storage control objective function; the present application can improve the utilization efficiency of photovoltaic power generation.

The application belongs to the field of intelligent water conservancy and measurement technology, and provides a double-frequency adaptive ultrasonic time difference method open channel flow measurement method and system. Among them, the left bank high-frequency ultrasonic probe and the left bank low-frequency ultrasonic probe are arranged on the left bank of the open channel, and the right bank high-frequency ultrasonic probe and the right bank low-frequency ultrasonic probe are arranged on the right bank of the open channel; and the line between the left bank high-frequency ultrasonic probe and the right bank high-frequency ultrasonic probe is parallel to the line between the left bank low-frequency ultrasonic probe and the right bank low-frequency ultrasonic probe. When measuring, the characteristics of high-frequency ultrasonic and low-frequency ultrasonic are comprehensively utilized to solve the problems of high-precision flow measurement, complex scene flow measurement with high sediment and large flow rate, and the problem of insufficient applicability of traditional single-frequency ultrasonic time difference method flow measurement in all scenes. In the application, the signal quality comprehensive score is compared with the low-frequency switching threshold and the high-frequency recovery threshold when selecting the ultrasonic probe, the frequent switching of high-frequency ultrasonic and low-frequency ultrasonic is avoided, and the reliability of the ultrasonic time difference method open channel flow measurement is improved.

The invention discloses a harmonic suppression method and system under a high background harmonic condition, and the method comprises the steps: carrying out the wavelet transformation of an input power grid voltage signal, and extracting the amplitude information of each harmonic in real time; dynamically determining a target harmonic set which needs to be suppressed at present through a preset threshold judgment mechanism according to the extracted amplitude information of each harmonic; for each harmonic in the target harmonic set, synchronously executing harmonic suppression and phase compensation operation; sending the signal subjected to harmonic suppression and phase compensation into a phase-locked loop to obtain a power grid synchronous phase; the system provided by the invention comprises an extraction module, a determination module, a compensation module and a suppression module, and provides a highly purified input signal for the phase-locked loop, so that the phase-locked loop can still maintain rapid and overshoot-free high-precision phase locking under serious harmonic pollution; and the operation stability and the electric energy quality of the grid-connected inverter in a complex power grid environment are remarkably improved.

The application discloses a kind of uncertainty field environment under multi-space-ground robot cooperative search method, it is related to multi-agent cooperative search technical field.The method includes: grid field task area, define space-ground robot state;Based on large language model, initialize the search value of task area cell;Design the total cost of cooperative search path planning including path cost and mode switching cost;Introduce communication distance constraint, adopt path decision method based on predictive control, select the minimum path point motion of cost, and dynamically update search value to carry out rolling optimization.The present application reduces invalid search area using large language model, improves search efficiency;Mode switching cost and different mode energy consumption are included in planning, avoid frequent switching and excessive dependence on high energy consumption mode, improve endurance.The present application is suitable for heterogeneous or homogeneous multi-agent system, significantly improves the practicability and efficiency of multi-space-ground robot cooperative search.

The invention discloses an unmanned aerial vehicle cluster service awareness clustering routing method based on wide-narrow band fusion, and the method comprises the steps: carrying out the role and link division of unmanned aerial vehicle nodes, and carrying out the initial clustering, and obtaining an initial layering clustering model based on wide-narrow band fusion; executing an intra-cluster optimal next hop discovery algorithm on the initial layered clustering model, and establishing an intra-cluster routing list; performing topology stability maintenance on the initial hierarchical clustering model in the unmanned aerial vehicle moving scene; performing cross-cluster routing discovery on the maintained layered clustering model, executing cross-cluster topology sensing and accurate addressing based on a compressed bloom filter, and determining a target cluster; executing gateway election based on link quality weighting and boundary prediction, and determining gateway nodes of cross-cluster transmission; and on the basis of the gateway node and the intra-cluster routing list, performing global perception cross-cluster dual-path routing discovery and dynamic service shunting, and realizing intra-cluster stable networking, cross-cluster rapid addressing, reliable gateway switching and service on-demand shunting transmission in the high-dynamic unmanned aerial vehicle cluster.

The invention belongs to the technical field of unmanned aerial vehicle image instant return methods, and particularly relates to a network and task dual-driven unmanned aerial vehicle image instant return method in a complex environment, which comprises the following steps of: acquiring four network index data of bandwidth, delay, jitter and packet loss rate, performing exponential weighted moving average filtering and denoising, and performing weighted calculation to obtain a network comprehensive quality score; five discrete network state levels are mapped, and a lagging threshold value is set for level switching; dividing an original image layer, a standard image layer and a thumbnail layer, setting a compression ratio according to a task type, determining the number of slices of each layer according to a corresponding rule to ensure that tile data volumes are consistent, and establishing association of tiles of different image layers by adopting a numbering rule; the comprehensive priority of image tiles is calculated based on four factors of a current viewport, user interaction, points of interest and a flight route, a priority queue jumping strategy is adopted, a network state level and a task type are combined, a to-be-transmitted image layer, the number of concurrent threads and a preloading strategy are dynamically adjusted, and instant image returning is achieved.

The invention belongs to the field of computers, and relates to a method, a system and equipment for salvaging and displaying handwriting track data of a user, and the method comprises the following steps: carrying out query processing on a log service according to a user identifier and an operation time range; generating track log data comprising a track coordinate point list, a request unique identifier, an interface path, an actual return result and an expected result; performing analysis and line drawing processing on a track coordinate point list in the track log data to generate a track diagram file; performing assembly processing on a track coordinate point list, a request unique identifier, an interface path, an actual return result, an expected result and a storage address of a track diagram file in the track log data to generate a data packet containing troubleshooting information; and carrying out integration and display processing on the data packet, and generating a rendering page used for displaying the track diagram file and the track log information. According to the invention, when the handwriting track abnormity is checked, the operation complexity is reduced, and the problem positioning efficiency is improved as much as possible.

The application provides a label printer multi-node access edge cloud collaborative control method and system, relates to the technical field of edge cloud collaborative control, a local agent node is connected with a label printer, and real-time state parameters of the label printer are collected; a to-be-printed task is acquired, and the to-be-printed task is disassembled into a subtask unit according to the real-time state parameters; it is judged whether the execution burden of the subtask unit exceeds the local carrying capacity; the execution result of the local agent node is instruction-level fused with the execution result returned by the cloud, a printing instruction sequence is generated, and the printing instruction sequence is issued to the label printer for execution. The application can realize the calculation load balancing in the label printer multi-node access scene, and improve the processing efficiency of the printing task and the system robustness.

The invention provides an underground power supply switching circuit, which adopts a processor as a main control core and an LTC4417 chip to execute a switching action, and the processor determines the electric quantity of a power supply according to a current value and a voltage value, and controls the on-off of a switch branch according to the electric quantity of the power supply, namely, controls a power supply mode, namely, controls the on-off of the switch branch according to the electric quantity of the power supply. The problems of frequent power supply switching caused by the adoption of a voltage value as a judgment basis, and further unstable underground power supply and incapability of normal work are avoided, monitoring of electric energy parameters is realized, and the underground power supply stability is improved.

The application discloses a method for monitoring the capacity of a vanadium redox flow energy storage system online, comprising the following steps: S1, acquiring multi-dimensional characteristic data collected by a multi-source data acquisition channel; S2, preprocessing the collected data to obtain a standardized characteristic vector; S3, inputting the standardized characteristic vector into a pre-trained kernel extreme learning machine (KELM) model to output a preliminary capacity estimation value; S4, adaptively weighting and fusing the preliminary capacity estimation value and the last valid capacity storage value read from a system historical database to obtain a final capacity monitoring value at the current moment; and S5, updating the system historical database and outputting the final capacity monitoring value. The application adaptively weights and fuses the preliminary capacity estimation value output by the KELM model and the historical valid capacity storage value, and dynamically adjusts the fusion weight according to the relationship between the characteristic frequency offset and the preset sensitivity threshold, so that the mechanism can fully exert the rapid response capability of the data-driven model when the electrolyte conductivity changes significantly.

The application provides a communication and power distribution collaborative low-interaction compression networking and partitioning method, device and medium, and belongs to the technical field of power system optimization. The method comprises the following steps: acquiring basic data of a coupled system; constructing a power distribution network physical layer complex network model based on power distribution network physical node data, and constructing a communication layer complex network model based on communication node data and a cross-domain mapping matrix; partitioning the coupled system based on the power distribution network physical layer complex network model and the communication layer complex network model to obtain an initial partition; when a dynamic disturbance occurs in the coupled system, a random stable game method is used to generate a candidate partition strategy for each partition, and based on the candidate partition strategy and the initial partition, an intermediate partition scheme is obtained; the intermediate partition scheme is verified to obtain a final partition; by using the random stable game method to generate a candidate partition strategy for each partition, the stability strategy optimization can be carried out based on the partition utility when the dynamic disturbance occurs in the coupled system.