29 results about "Transport delay" patented technology

The present application belongs to the technical field of distributed cooperative control system, and discloses a multi-point high-precision cooperative ignition system for firework display, comprising: a central controller which non-timely distributes delay time stamps to a plurality of distributed ignition modules and broadcasts a content-neutral synchronization event at a starting moment; the distributed ignition module starts a local timer upon detecting the synchronization event and autonomously counts down according to the pre-stored delay time stamp to execute ignition, the present application decentralizes intelligent time decision to the terminal, avoids the interference of signal physical transmission delay on the overall ignition precision of the system, and replaces the complex real-time clock synchronization and delay compensation mechanism in the traditional control system, so that the architecture simplifies the physical design and deployment complexity of the system, and improves the synchronization robustness and scalability when a large number of nodes work cooperatively.

The invention discloses a dust removal and air distribution control system and method based on a mathematical model, relates to the field of power failure prediction methods of power big data, and provides the following scheme that the dust removal and air distribution control system comprises a data acquisition unit, a mathematical model operation unit, a control decision unit, an execution unit and a feedback correction unit; the data acquisition unit is used for acquiring real-time environment parameters and equipment operation parameters in an industrial scene, and transmitting the acquired data to the mathematical model arithmetic unit through wireless transmission or an industrial Ethernet, and the transmission delay is less than or equal to 100ms. According to the invention, traditional control hysteresis is broken through, 'predictive 'accurate dust removal is realized, and the problem of scene adaptation is solved; meanwhile, self-adaptive regulation and control of multiple industrial scenes are achieved, the energy consumption optimization target can be fused, the win-win situation of efficient dust removal and low-consumption operation is achieved, long-term stability and reliability of the system are guaranteed by constructing a closed-loop optimization system, and the technology is high in expandability and adapts to future industrial intelligent upgrading.

The invention discloses an intelligent temperature and humidity regulation and control method for a file cabinet, and relates to the technical field of file safekeeping, a transport delay model associated with a storage quantity is introduced, the time difference between a measurement reading and a core state of a file can be dynamically estimated, and control delay is further compensated through additional adjustment time, so that the storage quantity of the file cabinet is improved. Therefore, regulation and control thoroughness and depth are ensured. And moreover, when the cabinet is in a high load state, a mode of automatically switching to a pulse type air supply strategy is adopted, and an air flow dead angle is actively broken through by utilizing pressure pulse, so that the permeation and exchange efficiency of the adjusted air under dense stacking is greatly improved, and deeper and more uniform accurate control on the environment in the whole cabinet is also realized.

The invention discloses a long-distance heat supply pipe network heat pump load adjusting method, which comprises the following steps: combining feedforward control with local feedback control, and determining transmission delay according to the length of a heating target pipeline and the flow velocity of a heating medium so as to determine feedforward adjustment advance time; the environment temperature change is forecasted according to the advance time, and the control strategy is determined according to the environment temperature change, so that more stable target indoor temperature control is realized, the delay problem of a long-distance heat supply system and energy waste caused by untimely control of the heat supply system are effectively solved, and double improvement of comfort and energy efficiency is realized.

The invention relates to the technical field of data transmission, and particularly provides a streaming Token double-path transmission method, system and device and a storage medium, and the method comprises the steps: responding to a streaming request, completing the initialization of a system and a session, building a bypass channel from a model to a client, and creating a session context in a control flow engine; identifying the type of each Token generated by the model, and shunting according to the type: data Token routing to a bypass channel and control Token routing to a control flow path processed by a control flow engine; data bypass transmission and control flow service processing are executed in parallel, and the states of the data bypass transmission and the control flow service processing are ensured to be consistent through a state synchronization mechanism; and the dual-path operation state is continuously monitored, and dynamic path adjustment or abnormity recovery is carried out when abnormity is detected. According to the method, the data flow and the control flow are decoupled, so that the transmission delay of the streaming Token is remarkably reduced while the state consistency is ensured.

The invention discloses a winch positioning cruise control method, device and equipment, and relates to the field of data processing.The winch positioning cruise control method comprises the steps that when it is detected that the height of a winch exceeds a preset height threshold value, a measurement starting signal is sent to a visual recognition system; receiving the coupling height fed back; acquiring the height and speed of the winch at the target moment; and determining the final stop height of the winch according to the coupling height, the height of the winch, the speed, the reference stop height and the data transmission delay. Accumulative errors are eliminated through vision measurement, and system delay is overcome through a prediction compensation algorithm. By means of the method, one-time alignment can be achieved, repeated adjustment caused by inaccurate positions is avoided, the operation time of tripping of each stand column is greatly shortened, and the well drilling efficiency is improved. Misoperation is avoided through a condition triggering mechanism; the equipment collision risk is reduced through high-precision positioning; the whole process is automatically completed by the system, and the possibility of manual misoperation is reduced.

The application provides a delay compensation control method for a double pendulum wave energy conversion device, which comprises the following steps: numerical modeling and hydrodynamic analysis are performed on the double pendulum wave energy conversion device, time domain motion equations are established, a time delay function is introduced into the time domain motion equations to simulate control signal transmission delay, and partial differential equations are used to simulate the execution delay of the brake; state space equations of the device are established, the convolution items in the time domain motion equations are replaced by the state space equations, and the motion state of the device is calculated; a Hamilton function is defined to convert a constrained optimization problem into an unconstrained optimization problem, the optimal control criterion considering the control delay is obtained by solving the Hamilton function, and the maximization of energy capture under the optimal control criterion is realized. The application truly reflects the operation characteristics of the physical system by introducing the control delay, so that the closed-loop control method is effectively implemented in the actual physical device, and the energy capture efficiency of the wave energy conversion device and the reliability of the system operation are effectively improved.

The invention relates to the technical field of rail transit operation management, in particular to a rail transit transportation delay recovery support device which comprises a shell and a processing module arranged in the shell, and the processing module at least comprises a data fusion module, a delay deduction module, an optimization scheme generation module, an evaluation and sorting module and a collaborative decision module. According to the method, rapid and scientific generation and multi-target tradeoff of the delay recovery scheme can be realized, and the operation recovery efficiency and the decision level are improved.

A system and a method for calculating a time delay in a non-terrestrial network (NTN) fronthaul (FH) includes defining a transport delay range including lower bound (Tmin) and an upper bound (Tmax) for the NTN FH, the transport delay including a downlink transport delay and an uplink transport delay, the transport delay range encompasses only a time when a bit leaves a sender until the bit is received by a receiver, and the transport delay values changes with the motion of a satellite.

The invention discloses a link pre-switching method and device based on a spatial position, relates to the technical field of port equipment communication, and mainly aims to meet the requirements of low time delay and high reliability of remote control of a tire crane. According to the technical scheme, the method comprises the steps of obtaining multi-source operation data of a target tire crane; on the basis of the multi-source operation data, a predicted space-time operation state corresponding to the target tire crane in a specified time period in the future is pre-judged through a space-time joint model, and the predicted space-time operation state comprises a predicted space position, a predicted attitude parameter and a predicted shielding risk probability; calculating a link switching decision score of the target tire crane through a multi-dimensional decision matrix based on the predicted space-time operation state; if the link switching decision score reaches a preset score threshold, triggering a pre-switching operation; and switching a communication link of the target tire crane from the original base station to the target base station after the target tire crane reaches the predicted spatial position and the signal strength and the transmission delay of the target base station are verified to meet preset transmission requirements.

A data dissemination system includes one or more data mules that transmit delay-tolerant data in a group of vehicles, where each data mule receives delay-tolerant data from one or more background servers, and the data mules maintain a polling connection with the background servers. In an embodiment, a data propagation system includes one or more controllers as part of an ego-vehicle, where the ego-vehicle is part of a population of vehicles, where the one or more controllers include one or more processors, and where the one or more processors are coupled to the ego-vehicle. The one or more processors execute instructions to establish a wireless connection to the geo-fencing network as the ego-vehicle travels along the navigation route. In another embodiment, a data propagation system includes one or more background servers that wirelessly communicate with a plurality of vehicles that are part of a group of vehicles. The background server identifies one or more data mules based on the modified cumulative ranking score.

The present application relates to the technical field of robot control, and especially relates to a distributed collaborative control method and device for a body intelligent multi-arm mobile operation robot, an electronic equipment, and a storage medium, the method is applied to a joint controller in a body intelligent multi-arm mobile operation robot control system, the present application distributes global trajectory planning results through a central controller, each joint controller exchanges local data based on an event triggering mechanism and runs a distributed neighbor consensus algorithm, realizing multi-arm collaborative control with low communication delay and high fault tolerance, compared with a centralized architecture, reducing bus load and instruction transmission delay, eliminating single point failure risk; at the same time, fully utilizing joint level sensing information to participate in collaborative decision making, improving torque balance, obstacle avoidance adjustment and load sharing capability, and enhancing system real-time performance, reliability and dynamic adaptability.

In some examples, a service computing device receives, from a vehicle computing device on a vehicle, a communication including sensor data acquired from at least one sensor on the vehicle. Based on the communication, the service computing device determines a transmission delay corresponding to a difference between a time at which the vehicle sends the communication and a time at which the vehicle receives the communication. Based on the communication, the service computing device determines a trajectory of the vehicle on the travel route. The service computing device determines vehicle control information for the vehicle based on the sensor data, the transmission delay, the wind direction and volume, the surrounding objects and trajectories. The service computing device sends at least one instruction to the vehicle based at least on the vehicle control information, causing the vehicle to perform at least one control operation to traverse one or more locations associated with a trajectory of the vehicle.

The invention relates to the technical field of deviation inspection, and discloses a liquid filling line net content accumulated deviation and inspection method, which comprises the following steps: setting delay time and delay error of each filling head on a filling line; net content deviation caused by the delay error is calculated according to the filling speed and the average flow of the filling line; the accumulated net content of each filling head at each moment is collected, and the value of the accumulated net content is pressed into the stack corresponding to each filling head; and taking out the accumulated net content before delay corresponding to each filling head at the current moment from the stack. By introducing the concept of the virtual filling line and combining the stack data storage and time alignment technology, the problem that the filling head data and the total checkweigher data are not synchronous due to material transmission delay is effectively solved, so that real-time closed-loop monitoring of the whole flow of the filling process is realized, and the working efficiency is improved. And the accuracy of net content detection and the intelligent level of system control are obviously improved.

This invention discloses a multi-target cooperative perception method for connected autonomous vehicles, relating to the field of autonomous driving technology. It includes: acquiring environmental data to construct local perception features and compressing them to obtain compressed features; constructing a path loss and channel gain model and calculating communication transmission delay using orthogonal frequency division multiple access (OFDM); establishing end-to-end perception delay and energy consumption models to obtain the perception delay and energy consumption corresponding to each role; constructing a multi-target optimization model; asynchronously generating action policies through an Actor network with a self-attention mechanism and evaluating the global state value through a Critic network with a graph attention mechanism to output the action policies; decompressing and fusing the compressed features for target detection; calculating multi-target reward values ​​and updating the parameters of the Actor network and Critic network respectively. This invention achieves adaptive cooperation by combining asynchronous architecture and multi-target optimization with attention reinforcement learning, balancing accuracy and energy consumption, and improving perception efficiency and robustness.

The invention discloses a stirrer feeding control device, and relates to the technical field of feeding control, and the stirrer feeding control device comprises a scale body which is used for weighing the reduction amount of materials; the storage bin is suspended above the scale body and is used for storing materials; the first spiral conveyor is arranged at the bottom of the storage bin; the second screw conveyer is arranged on the scale body and is positioned below the first screw conveyer; and the difference value compensation channel is communicated with a discharging port of the first spiral conveyor and a feeding port of the second spiral conveyor, and local material suspension is achieved so as to compensate material over-discharge caused by signal transmission delay, the difference value compensation channel is additionally arranged, and the principle that suspended materials in the difference value compensation channel cannot be weighed by the scale body is utilized, so that the material over-discharge caused by signal transmission delay can be compensated. When the scale body detects that the reduction amount of the materials reaches a preset value and triggers a shutdown signal, the part of suspended materials just compensates for extra discharging in the delay period, and the problem of excessive discharging caused by signal delay in feeding control of a traditional weightlessness scale is thoroughly solved.

A timing controller and an operation method of the timing controller are provided. The timing controller includes a timing signal generation part and a frame signal generation part. The timing signal generation part generates a clock signal to a source driver for driving a display panel. The frame signal generation part generates a frame signal synchronized with the clock signal. The timing controller transmits a first differential signal pair and a second differential signal pair of the frame signal to the source driver via different transmission paths. The timing controller adjusts the phase of at least one of the first differential signal pair and the second differential signal pair so that the clock signal has different timing skews for different differential signal pairs, in order to adapt to different transmission path delays of the different transmission paths.

The invention discloses an equipment full-life-cycle management method, equipment, a product and a medium, and relates to the technical field of equipment management. The method comprises the following steps: acquiring physical distribution topological data of a plurality of equipment nodes; based on the physical distribution topology data, calculating transmission delay parameters and energy attenuation coefficients among equipment nodes, and determining an active source node set and a passive response node set; in response to a scheduling request for the active source node set, generating a plurality of candidate operation combinations, and determining an initial environment output vector of each candidate operation combination; determining an environment stress vector based on the transmission delay parameter, the initial environment output vector and the energy attenuation coefficient; determining an estimated loss value based on the environmental stress vector; determining a target operation combination by taking minimization of the sum of the estimated loss values as a target; and generating a control instruction sequence based on the target operation combination, and driving the active source nodes in the active source node set to execute the control instruction sequence. The effect of improving the operation efficiency of the equipment is achieved.

The embodiment of the invention provides a parallel driving road feeling restoration method and system, computer equipment and a storage medium, and the method comprises the steps: obtaining the steering torque information and actual torque of a target vehicle at a vehicle end in real time, inputting the steering torque information into a pre-trained torque prediction model, and obtaining a predicted torque, a real aligning torque is determined according to the predicted torque and the actual torque of the target vehicle, and the real aligning torque is sent to the cabin end; judging whether the transmission delay of the real aligning torque exceeds a preset duration or not at the cabin end according to the timestamp of the real aligning torque and the current time, if so, compensating the real aligning torque to obtain a compensated aligning torque, determining a target current according to the compensated aligning torque, and controlling a preset motor to operate according to the target current, the turning angle road feeling is restored through the torsion bar elastic body connected with the preset motor, the vehicle end road feeling can be restored in real time, bidirectional teleoperation of a force feedback closed loop is achieved, and the control precision and safety of remote driving are remarkably improved.

A communication-based SIL4 platform screen door system, comprising a domain controller, a DCU, an external interface and other subsystem devices. The platform screen door system implements interconnection and intercommunication with a signal system and the other subsystem devices by means of a bus connection and a hard wire connection, such that the high safety and high reliability of the system are ensured. Moreover, by means of using a dual-CPU architecture in the domain controller and the DCU, dual processing and cross validation can be performed on data by using the dual-CPU design, such that data accuracy and consistency are ensured, and an existing relay circuit is replaced to achieve SIL4. A transparent data transmission mechanism performed by using a single CPU reduces the data transmission delay and improves a real-time response capability. Further disclosed is the application of the communication-based SIL4 platform screen door system in a rail-transit door control system.

The application provides an auxiliary driving control system and a vehicle. Through double screening of a vehicle information service provider platform and a cloud computing platform, redundant data in a vehicle working condition data package is removed. The double screening mechanism avoids transmission of invalid data from the source, reduces transmission delay and cloud processing load. The instruction generation process is transferred to the cloud computing platform. The vehicle end only needs to retain the light data acquisition, encryption upload and instruction execution capability, thereby reducing the vehicle hardware cost. The vehicle-mounted system can perform auxiliary driving control based on the current network state between the vehicle-mounted information service provider platform and according to the action instruction or the redundant decision plan, thereby ensuring the availability and safety of the function under various network conditions. The vehicle-mounted system can realize smooth degradation of the function under various scenes from temporary lag to long-term disconnection, rather than directly exiting the auxiliary driving, thereby greatly enhancing the driving confidence and safety of the user in a weak network scene.

The present application belongs to the technical field of measurement of electrical variables and edge computing, and discloses an electric energy metering box monitoring system based on intelligent sensors, which comprises an intelligent sensor node and an edge control unit, and a lightweight abnormality preliminary screening model and a dual-mode communication stack are built in the node. The node reports a state vector through a message queue telemetry transport protocol under normal conditions, and the edge control unit inputs the state vector into the preliminary screening model to output a state confidence. When the state confidence is in a transition interval, the edge control unit issues an instruction, the node switches an analog-to-digital converter to a high-frequency mode, and switches a communication stack to a limited application protocol block transmission protocol based on a user datagram protocol, and transmits high-frequency sampling data to the edge control unit in blocks. The present application suppresses invalid data flow under normal conditions, avoids bus conflicts caused by sudden high-frequency data, and shortens the data acquisition and transmission delay under abnormal conditions.

In some examples, a service computer receives a communication from a vehicle computer on board a vehicle. This communication includes sensor data obtained from at least one sensor on board the vehicle. Based on this communication, the service computer determines a transmission delay, which is the difference between the time the vehicle sent the communication and the time it was received. Based on this communication, the service computer determines the vehicle's trajectory along a travel route. Using the sensor data, the transmission delay, wind direction and magnitude, surrounding objects, and the trajectory, the service computer determines vehicle control information for the vehicle.The service computer sends to the vehicle, based on at least the vehicle control information, at least one instruction that causes the vehicle to perform at least one control operation to traverse one or more locations associated with the vehicle's trajectory.

The present application provides a wireless communication method. One example method includes: sending, by a first device, a first transport block, where a size of the first transport block is determined based on a product of an initial size of the first transport block and a first parameter, the first parameter is determined based on one or more of the following parameters: a second parameter that indicates channel transmission quality corresponding to the first transport block; or a third parameter that indicates a channel transmission delay corresponding to the first transport block.

This invention discloses a feed control device for a mixer, relating to the field of feed control technology. It includes: a weighing body for weighing the material reduction; a receiving bin suspended above the weighing body for receiving materials; a first screw conveyor located at the bottom of the receiving bin; a second screw conveyor located on the weighing body and below the first screw conveyor; and a differential compensation channel connecting the discharge port of the first screw conveyor and the inlet of the second screw conveyor to achieve partial material suspension, compensating for material overfeeding caused by signal transmission delay. This invention, by adding a differential compensation channel, utilizes the principle that suspended material within the channel cannot be weighed by the weighing body. When the weighing body detects that the material reduction reaches a preset value and triggers a stop signal, this suspended material precisely compensates for the extra material feeding during the delay period, completely solving the problem of excessive material feeding caused by signal delay in traditional loss-in-weight scale feed control.

The invention relates to the field of vehicle formation driving, and provides a self-adaptive V2X message transmission method. The method is based on an existing vehicle formation driving control model, and the maximum message transmission delay for maintaining formation stability is determined by calculating a system response function. The method is characterized in that an information urgency degree index designed for the vehicle formation driving scene is introduced, the instability of the vehicle formation is quantified, the larger the information urgency degree value is, the larger the instability is, and a basis for identifying and controlling potential unstable factors is provided for a system. According to the method, the Eapunov optimization method is adopted, and the optimal sending opportunity of the V2X message is selected by minimizing the information urgency degree under the condition of meeting the sending frequency limitation, so that the stability of vehicle formation driving is enhanced. According to the method, the message sending frequency can be adaptively adjusted according to the traffic environment change, the vehicle collision risk is reduced, the control precision is improved, and V2X communication resources are effectively utilized. Simulation experiment results show that compared with a fixed interval message transmission method, the method has obvious advantages in the aspects of reducing vehicle collision risks, improving control precision and reducing V2X communication resource consumption.

The invention provides a whole cabinet water cooling water path flow distribution method and system based on pressure loss analysis. The method comprises the following steps that firstly, a hydraulic dynamic model of the pressure loss and flow relation of all parallel cooling branches is established on line; secondly, by predicting the heat production trend of each power module, the comprehensive heat threat level of each power module is calculated, and the target cooling flow is determined; then, feed-forward compensation is carried out on the target flow in combination with fluid transmission delay in the hydraulic dynamic model, and a final flow execution instruction is generated. The method comprises the core steps that a hydraulic dynamic model is called to inversely calculate an execution flow instruction into a target pressure loss value of each branch, and a regulating valve of each branch is controlled through a closed loop, so that the real-time pressure loss of each branch is matched with the target pressure loss. According to the method, predictive distribution of the cooling flow of each branch is realized by taking the pressure loss as a control target, and the heat management efficiency and reliability of the water cooling system are improved.

A subscriber station and a method for deterministic communication in a serial bus system. The subscriber station has a communication control device for controlling a communication of the subscriber station by generating messages based on a frame and transmitting the messages to a bus of the bus system, and by evaluating at least one signal received from a bus of the bus system based on the frame, and a pause module for evaluating at least one item of status information output by the communication control device in relation to whether or not a predetermined frame has been received from the bus. The pause module is designed to generate and output a transmission delay signal based on a result of its evaluation, in order to delay or not delay the provision of a transmission message to the communication control device.

This application discloses a magnet power supply controller, method, and system, relating to the field of power control technology. Specifically, it includes: a baseboard and a core board connected to the baseboard via an inter-board connector; the baseboard includes an interface unit, and the core board includes a processing module; the interface unit acquires feedback signals from the magnet power supply and transmits them to the processing module via the inter-board connector; the processing module generates control signals based on the feedback signals and outputs them to the magnet power supply via the inter-board connector and the interface unit. This application solves the problems of large size, low integration, and large cross-board signal transmission delay in existing discrete controllers through the integrated compact architecture of the baseboard and core board and the high-speed data transmission of the inter-board connector, significantly improving system integration and reducing communication delay between acquisition and control.