493 results about "Mode switch" patented technology

The embodiment of the invention provides a grid-connected inverter control mode switching method and device, equipment, a medium and a product, and is applied to the technical field of electrical control. The method comprises the following steps: acquiring a control mode switching signal of the grid-connected inverter, and determining a switching direction of a control mode based on the switching signal; when the switching direction indicates that the current control mode is switched from the GFL mode to the GFM mode, setting an initial value of an integrator of a power synchronization loop of the GFM mode as a phase angle value of a phase-locked loop corresponding to the GFL mode; switching the control mode from the GFL mode to the GFM mode based on a first preset path and a step-by-step switching mode; when the switching direction indicates that the current control mode is switched from the GFM mode to the GFL mode, acquiring a power steady-state output value of the GFM mode, and setting a power reference value of the GFL mode as the power steady-state output value; and switching the control mode from the GFM mode to the GFL mode based on the second preset path and the step-by-step switching mode. The technical effect of improving the control mode switching fluency is achieved.

The invention relates to a PFC-PWM (Pulse Width Modulation) dual-mode control method for a high-voltage direct-current power supply with a wide output voltage range. The output current of the high-voltage direct-current power supply is detected in real time, the critical threshold value of the load impedance is mapped into the hysteresis interval of the output current, the theoretical boundary of mode switching is obtained, and the control mode is dynamically adjusted. In order to further guarantee smooth switching of the two control modes, hysteresis control logic is designed, and undisturbed smooth switching of the PFM mode and the PWM mode is achieved. Based on an energy equivalence principle and a frequency consistency constraint of a critical load SWL working point, a current threshold criterion and a parameter pre-synchronization strategy are constructed, seamless connection of a mode switching process in a frequency domain and an energy domain is ensured, a transient oscillation risk is remarkably reduced, and a guarantee is provided for continuous and stable output of a full-range load working condition.

The invention relates to the technical field of AC / DC module control, and discloses an intelligent control method and system for multi-mode switching of an AC / DC module. According to the method, a dynamic topology mapping model is constructed according to an impedance spectrum matrix, and a physical connection relation is converted into a node admittance relation network; generating an energy distribution state sequence based on the power fluctuation vector, and analyzing migration constraint conditions among different operation modes by adopting an association rule mining algorithm; when an operation mode switching instruction is detected, activating a node admittance relation network in the dynamic topology mapping model, and inputting a current energy distribution state sequence to an association rule mining algorithm; according to a real-time matching result of the node admittance relation network and the migration constraint condition, generating a switching control instruction containing an impedance adjustment gradient and a power distribution weight; and the power semiconductor execution unit transmits the switching control instruction to the AC / DC module. According to the method, multi-mode intelligent switching control of the alternating-current and direct-current module can be realized.

The invention discloses a fault signal dual-mode output method of a magnetic latching relay, particularly relates to the technical field of relay control, and is used for solving the problem of low mode switching efficiency caused by an existing physical jumper mechanism. The current mechanical state of the relay is detected by receiving a remote dual-mode switching instruction; applying a driving voltage sequence corresponding to the target mode according to the state; based on the iron core residual magnetism intensity and the dynamic margin of a target mode nominal value, judging and generating a driving enabling or degaussing trigger signal; when a driving enable signal is responded, the lag time difference between the voltage rising edge and the magnetic flux jump starting point is captured in real time, and the eddy current loss characterization quantity is generated by combining the product integration of the current differential and the temperature rise; adjusting the rising slope and the duty ratio of the driving voltage sequence according to the lag time difference and the over-limit condition of the eddy-current loss characterization quantity; and finally, the matching between an execution result and a target mode identifier is verified by controlling a coil current response waveform, and the continuous holding mode and the instantaneous pulse mode are remotely and reliably switched.

The invention relates to the technical field of communication equipment operation and maintenance, in particular to a serial port equipment firmware upgrading method and system. The serial port equipment firmware upgrading method comprises the steps that an upgrading task instruction issued by a remote management platform is received, and after equipment identity verification and upgrading file integrity verification are executed, system protection measures are started; creating a security isolation sandbox environment, forbidding a high-risk function module in a script execution environment, and defining addressing parameters of target serial port equipment; standard scripts are loaded, and serial port read-write, file operation and state reporting type security interaction interfaces are injected; calling a mode switching function of the standardized script, so that the serial port equipment is switched to a firmware upgrading mode from an operation mode; cyclically calling a data transmission function of the standardized script to transmit firmware data in blocks, and synchronously implementing timeout monitoring; and after upgrading is completed or abnormal interruption occurs, the security isolation sandbox environment is destroyed, the original business is recovered, and an upgrading result is reported to the remote management platform.

A server delay control device that is set up in a kernel space of an OS and started as a thread to use a polling model to monitor an arriving packet, wherein the thread has operation modes of a sleep control mode in which the thread is put to sleep and a constantly busy poll mode in which the thread is kept constantly busy polling, and the server delay control device includes a traffic frequency measurement unit that measures traffic inflow frequency, and a mode switching control unit that switches an operation mode of the thread between the sleep control mode and the constantly busy poll mode, on the basis of the traffic inflow frequency measured by the traffic frequency measurement unit.

The invention discloses a mode switching method, device and equipment of an energy storage converter and a storage medium, and relates to the technical field of power grid control, and the method comprises the steps: obtaining a multi-mode control grid-connected model of the energy storage converter, and the grid-connected model comprises a grid-following type control model and a grid-constructing type control model; based on the grid-connected model, injecting a high-frequency small signal into a power grid through an energy storage converter, and processing the high-frequency small signal by adopting a discrete Fourier transform algorithm to obtain grid-connected point voltage and current response; obtaining a power grid impedance parameter according to the grid-connected point voltage and current response; calculating an operation short-circuit ratio according to the power grid impedance parameter in combination with the actual output power of the energy storage converter and the power grid voltage amplitude; according to the operation short-circuit ratio and the short-circuit ratio threshold value, mode switching is carried out on the following network type control and the construction network type control, and the method can improve the accuracy of mode switching of the energy storage converter.

The invention discloses a control method of an electronic musical instrument, the electronic musical instrument and a storage medium, the electronic musical instrument comprises at least two modes, and the control method comprises the following steps: receiving a target playing operation for the electronic musical instrument; under the condition that the target playing operation triggers mode switching, a current first playing mode is switched to a second playing mode, and playing rules of the electronic musical instrument in the first playing mode and the second playing mode are different; and responding to a new playing operation according to a target playing rule corresponding to the second playing mode. According to the technical scheme of the invention, different modes can be switched according to the operation of the user, so that the electronic musical instrument meets the operation freedom degrees of different users, and personalized playing requirements are met.

The invention discloses a mode switching method, device and equipment of a variable photo-thermal integrated Carnot battery and a storage medium, and relates to the technical field of photo-thermal energy storage, and the method comprises the steps: firstly cleaning and fusing historical and to-be-measured radiation, meteorological, geographic and equipment data, and generating high-quality features; then, a Transform-LSTM model containing an encoder, position coding, multi-head attention, feedforward, LSTM and a full connection layer is built, historical features are used for training until convergence is achieved, and a target model is obtained; the model outputs a solar radiation predicted value in real time, a storage and release link of medium and low temperature circulation is started when the solar radiation predicted value falls into a first preset intensity grade, and high temperature circulation is switched when the solar radiation predicted value falls into a second preset intensity grade to complete mode switching. According to the invention, output uncertainty caused by solar radiation fluctuation can be converted into stable and adjustable electric energy output, and optimal distribution of photo-thermal resources and maximization of system efficiency are realized.

The present application relates to a converter control method, a converter, and a chip. The converter comprises an alternating-current side half-bridge circuit and a controller, and the method is used in the controller. The converter control method comprises: when the alternating-current side half-bridge circuit satisfies a zero-crossing switching condition, switching the control mode of the alternating-current side half-bridge circuit from a first mode to a second mode, wherein the second mode comprises: switch devices located on a same bridge arm are turned on in a preset sequence or turned off in a preset sequence, and corresponding switch devices located on different bridge arms are complementarily turned on. The converter control method has high reliability.

The invention provides a platform door monitoring method, a platform door monitoring device and a platform door monitoring system, which are realized through a platform door monitoring machine, the platform door monitoring machine is connected with a platform door unit controller, responds to a control instruction input by a user and executes triple safety verification, and authority verification is that only when a logged-in user is an administrator, the logged-in user is the administrator; opening an operation interface related to the control instruction and allowing execution of the control instruction; the mode switching verification is to receive a mode switching instruction, so that the platform door unit controller is converted into a control instruction issuing mode; the secondary confirmation operation is to forcibly verify a confirmation password input by the user before the control instruction issuing operation; and after the triple safety verification is passed, generating a unique command identifier corresponding to the operation of the control instruction, binding the unique command identifier with the control instruction, and issuing the bound unique command identifier and the control instruction to a platform door unit controller for execution. Motion control parameters of the door control unit can be modified remotely, time and labor are saved, the safety and reliability of the platform door are improved through remote monitoring and management, and the safety of passengers is guaranteed.

The invention relates to a solar photovoltaic power generation control method and system, and the method comprises the steps: adjusting a power reference value of a virtual synchronous generator based on the predicted photovoltaic power change trend information of a micro-grid after a mode switching request is detected, and controlling the output power of the micro-grid to approach a steady-state power value under a target grid-connected working condition; in different operation modes, the virtual inertia of the virtual synchronous generator is configured to be an adaptive set value, and the virtual damping coefficient is adjusted; calculating a comprehensive switching preparation index based on the photovoltaic power prediction error, the convergence characteristic of the actual power deviation and the bus voltage and frequency fluctuation amplitude; and when the comprehensive switching preparation degree index meets a preset condition, generating a synchronous starting instruction, and entering an off-grid to grid-connected switching stage. Therefore, the stability and the reliability of mode switching can be remarkably improved, transient impact is effectively inhibited, and the power supply continuity and the power quality are guaranteed.

The invention discloses a dual-mode control switching method for unattended reconstruction of a rotary drilling rig, and particularly relates to the technical field of mechanical equipment mode switching, and the method specifically comprises the steps of S1, switching request triggering and instruction freezing, S2, full-state snapshot generation and synchronization, S3, three-level progressive arbitration decision, and S4, dual-factor verification and switching execution. And S5, network fluctuation fault tolerance. According to the invention, through overall planning of the vehicle-mounted controller, after a switching request is received, an instruction is frozen, full-state snapshots including sensor data, operation links, equipment health and environment data are synchronized, and switching is completed through three-level arbitration including safety state judgment, authority network verification and target end confirmation and then double-factor recheck. Safe seamless switching between a remote mode and a local mode can be achieved, the situations of instruction conflicts and information faults are avoided, the operation efficiency is improved, fault-tolerant processing is carried out on scenes such as network fluctuation and emergency takeover, and the reliability and safety of unattended operation are further improved.

The invention provides a server dual-mode debugging system and a server dual-mode debugging method. The system comprises a DC-SCM card provided with a CPU, a first CPLD main board, a second CPLD, a BMC controller, a CP2105 chip, a TYPE-C interface, a UID key and an indicator lamp, and a DC-SCM card provided with a first CPLD main board, a second CPLD main board and a second CPLD main board, the BMC controller is used for detecting a current system debugging mode and a key operation state of the UID key, and switching the current system debugging mode according to the key operation state; the controller is also used for detecting the hardware working state of the server system in the current system debugging mode in real time and controlling the indicator light to display the system working state in the current system debugging mode; according to the method, intelligent switching output of serial port information of the BMC and the CPU can be achieved through the rear Type-C interface, clear state indication is provided, debugging mode switching and state recognition can be completed without opening a case, and the maintenance efficiency of the server is remarkably improved.

The invention relates to the technical field of industrial automation control, and provides a method and system for achieving online simulation of an HMI simulator, and the method comprises the steps: monitoring the starting and offline simulation process of an original HMI programming software simulator, and confirming that the original HMI programming software simulator completes the generation of a configuration file; receiving a mode switching instruction of a user through the mode switching interface; in response to the mode switching instruction, terminating the current simulator process; modifying a configuration file generated by the simulator, modifying an operation mode parameter in the configuration file from a first value representing offline simulation to a second value representing online simulation, and dynamically configuring a communication port parameter; the verification information of the configuration file is updated to ensure the legality of the file; and restarting the simulator, and loading the modified configuration file by the simulator so as to establish communication connection with an external PLC (Programmable Logic Controller) or instrument and enter an online simulation mode. On the premise of not depending on entity hardware, online communication and real-time joint debugging of the HMI simulator and the external equipment can be realized.

The invention belongs to the technical field of power grids, and particularly relates to a power grid equipment operation mode intelligent switching method for energy-saving dispatching. The method comprises the following steps of: 1, establishing a monitoring point table, reading a current state table, establishing an operation constraint table and a control command table, automatically generating an action fragment catalog, dividing a region set, extracting an initial value of a coupling boundary quantity, and writing the initial value into a consistency alignment result table as all inputs of subsequent circulation; step 2, by taking the region set as a parallel unit, carrying out iteration according to an execution sequence of local decision construction, near-end alignment, consistency alignment, approaching instruction issuing and convergence judgment around a coupling boundary quantity and consistency alignment result table under the control of a coordinator; 3, sequentially issuing the action fragments in the progressive execution windows according to the mode switching instruction set; according to the method, the interlocking labels are arranged in the action fragment catalog, and the reference and influence range is withdrawn, so that the whole switching process not only can be repeatedly executed, but also has definite traceability and auditing performance.

The invention discloses a motor control method, device and equipment and a medium, and relates to the field of motor control, when a mode switching condition is met, switching operation is not executed immediately, and the switching time is set at the commutation time of a motor, so that natural transition of a phase angle of a reference voltage vector is ensured; meanwhile, based on the running state of the motor in the first control mode, an integral initial value of the current regulator in the second control mode is preset, so that smooth connection of the amplitude of the reference voltage vector is realized. Through cooperative control of the phase angle and the amplitude, the problems of unstable motor operation, speed fluctuation, equipment stress damage and the like caused by discontinuous jump of the reference voltage vector at the switching point are solved, and the effect of improving the motor control performance and the system operation reliability is achieved.

The invention discloses a server fan control method and electronic equipment, and relates to the technical field of data processing, and the server fan control method comprises the steps that a first temperature value of an air outlet of a fan unit of a server and a second temperature value of a radiator of a processor of the server in a current period are collected; determining a mode switching threshold value of the fan unit; calculating a temperature difference value between the first temperature value and a preset target temperature; whether the temperature difference value is larger than a mode switching threshold value or not is judged; if the temperature difference value is larger than the mode switching threshold value, the fan control circuit is controlled to drive the fan unit to operate according to the full-speed operation mode; if the temperature difference value is smaller than or equal to the mode switching threshold value, the pulse width modulation duty ratio of a control circuit of the fan unit is determined according to the second temperature value; and according to the pulse width modulation duty ratio, the fan control circuit is controlled to drive the fan unit to operate according to the regulation and control mode, so that the method is suitable for different server operation scenes, frequent start and stop of the fan are avoided, and the service life of the fan is prolonged.

The invention relates to the field of Internet of Things equipment power consumption management, in particular to a multi-mode switching low-power-consumption Internet of Things equipment management system. By setting a multi-layer electronic fence area and combining behavioral habit modeling and border crossing intention prediction, intelligent judgment and switching of equipment operation modes are realized: when equipment is in a first electronic fence, a low-power-consumption mode is entered; when entering a buffer area between the first electronic fence and the second electronic fence, predicting whether a border crossing intention exists or not based on the multi-dimensional behavior characteristics, and judging whether to switch to an activity tracking mode or not; and when the second electronic fence is exceeded, determining whether to enter a warning mode or not by combining the border crossing behavior intensity and the historical precedent assessment risk. The system also supports adaptive adjustment of sampling frequency and dynamic switching of communication protocols. According to the invention, the problems of frequent switching and high energy consumption caused by boundary oscillation in the prior art are effectively solved, and low-power-consumption, intelligent and high-reliability operation of the positioning equipment in nursing application is realized.

The invention provides a command processing circuit, a command processing method and a PIM device. The command processing circuit comprises a PIM command identification module which is electrically connected with a command address bus of the PIM device and is configured to receive a command signal through the command address bus and judge the type of the currently received command signal; if it is judged that the currently received command signal is a DRAM conventional command, the command signal is sent to a conventional command processing module; if it is judged that the currently received command signal is a PIM related command, the command signal is sent to a PIM command processing module; the PIM command processing module is electrically connected with the PIM command identification module and is configured to receive a PIM related command, decode the PIM related command and perform corresponding operation according to a decoding result; and the conventional command processing module is electrically connected with the PIM command identification module and is configured to receive the DRAM conventional command and decode the DRAM conventional command. The method is at least beneficial to avoiding mode switching and improving system performance.

The invention relates to the technical field of computer input equipment, in particular to mouse and gamepad dual-mode input equipment and a control method thereof.The control method comprises the steps that a data signal sent by a mouse body is received through a signal processing device, and a working mode is switched between a first mode and a second mode according to a mode switching instruction; when the game handle is in the second mode, the displacement increment and the key state are converted into a rocker control signal and a key control signal which accord with a control protocol corresponding to the target game handle; and packaging the rocker control signal and the key control signal into a USB (Universal Serial Bus) data frame conforming to a control protocol corresponding to the target gamepad. According to the invention, signal conversion and protocol packaging functions are completely integrated into independent signal processing device firmware; therefore, the inherent problems of input delay, system resource occupation and conflict with a game anti-cheating system of a traditional PC end software mapping scheme are solved, and plug-and-play compatibility which is the same as that of an original handle is achieved.

The invention relates to an intelligent industrial centralized control method and system for digital twinning enabling, and the method comprises the steps: controlling an intelligent driller cabin to be switched between an operation mode and a virtual mode in response to a mode switching instruction; and under the condition of the virtual mode, activating the digital twin link, and disconnecting the remote control link, so that the remote control system PLC sends the acquired multi-source data of the drill floor area equipment to the digital twin server, and the digital twin server sends the multi-source data to the digital twin server. Enabling the digital twin server to implement collaborative virtual debugging including mechanical behaviors and electrical logic based on a deployed equipment digital model and an electrical behavior model; and under the condition of the operation mode, the remote control link is activated, and the digital twin link is disconnected, so that the remote control system PLC performs remote multi-mode operation on the drill floor area equipment. According to the invention, two links of far-end operation and virtual debugging are constructed through the reconfigurable communication topology, and the safety of drilling operation and the debugging control efficiency are remarkably improved under the flexible switching of the two modes.

The invention provides an off-line task autonomy and increment synchronization method and device of a robot and a medium, and belongs to the technical field of robot edge computing control, the method can monitor the network connection state in real time, and when a network disconnection event is detected, system mode switching is triggered; responding to the network disconnection event, switching the system from an online mode to an offline mode, and activating a local task queue; storing the control instruction to a local compression task queue; in the offline mode, the instructions in the local task queue are scheduled to the robot to be executed according to the priorities, and the instructions with the high priorities are executed preferentially; and performing conflict detection and combination on the offline task and the cloud state to complete incremental data synchronization. According to the method, when the network is unstable or interrupted, it is guaranteed that the robot can continuously, safely and efficiently execute tasks; and after the network is recovered, accurate synchronization of the data is realized, and data conflict and loss are avoided.

The invention relates to the field of gamepads, and discloses a gamepad convenient for multi-mode switching and a gamepad control method.The gamepad comprises an operation recording unit, an operation analysis unit and a mode switching unit, the operation recording unit is used for recording operation records of a user on keys of the gamepad, and the operation analysis unit is used for analyzing the operation records of the user on the keys of the gamepad; the operation analysis unit is used for analyzing operation records of a user on keys of the gamepad and determining mode switching information, and the mode switching unit is used for switching control modes of the gamepad according to the mode switching information; wherein the operation record of the user on the keys of the gamepad comprises key information, rocker swing amplitude information and rocker swing direction information, and the mode switching information is used for controlling the gamepad to be switched among a plurality of preset control modes. The control modes such as the rocker force of the gamepad can be automatically controlled, and the using effect of the gamepad is improved.

An electrified vehicle includes: a mode switch that gives an instruction of switching being performed in order of a first mode, a third mode and a second mode, among the first mode, the second mode and the third mode; and a control device that sets a traveling mode to one of the modes in accordance with the mode switch operation and controls a motor and an auxiliary machine in accordance with the traveling mode. When the mode switch has been operated while the traveling mode is the first mode, the control device switches the traveling mode from the first mode to the second mode without the switching to the third mode, if the mode switch has been operated again within a predetermined time, and switches the traveling mode from the first mode to the third mode, if the mode switch has not been operated again within the predetermined time.

The invention discloses a mode switching method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of mode switching.The method comprises the steps that if a target signal is detected, a riding mode is entered, a riding style interface is provided in the riding mode, and a riding interaction request of a target user is responded through the riding style interface, so that the target user can perform mode switching according to the riding interaction request; and obtaining a riding interaction result, and if it is detected that the target signal is continuously in an interruption state and the moving speed information of the terminal equipment meets a preset condition, exiting the riding mode. After the target signal is detected, the mode is switched to the riding mode, and the riding style interface suitable for riding is provided in the riding mode, so that the adaptive design suitable for the riding scene is provided, and the interaction request of the user in the riding process is responded through the riding style interface, and the user experience is improved. The user can enjoy the convenience brought by the intelligent equipment in the riding process, and the riding experience is improved.

The application discloses a mode switching method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring power system data of a current vehicle, wherein the power system data of the current vehicle comprises engine data, generator data, driving motor data and battery data; determining a system series-parallel connection capability parameter based on the engine data, the generator data, the driving motor data and the battery data, wherein the system series-parallel connection capability parameter comprises a system series connection capability parameter and a system parallel connection capability parameter; and switching a system working mode of the current vehicle to a target working mode based on the system series connection capability parameter and the system parallel connection capability parameter. The above technical solution improves the accuracy of the series-parallel connection capability parameter by adding the generator data, the driving motor data and the battery data, so that the system working mode is switched to a more reasonable working mode, and the driving demand is met.

The present invention relates to the field of data processing technology, and in particular to an intelligent cache management method and system based on user needs. The method includes the steps of: S1, concurrent environment determination and cache mode switching; S2, interaction complexity identification; S3, sensitive field identification; S4, cache duration regulation; S5, execution cache; the present invention switches the cache mode through real-time concurrent environment determination, identifies the interaction complexity of user input behavior to further subdivide the cache resource usage intensity, divides the input fields into sensitivity and priority levels, and dynamically adjusts the cache duration by priority level and call frequency. While improving the flexible adaptability of the method, the present invention ensures the cache stability of highly sensitive and high-priority fields, realizes the reasonable allocation of cache space and information accuracy assurance, and is suitable for personalized intelligent form filling guidance under high concurrency.

The application relates to a dual-motor control circuit, method and variable-frequency speed regulation system. A mode switching module is arranged, so that in the case of common bridge arm failure, the phase connected between the first motor, the second motor and the common bridge arm can be switched to be connected with the bus capacitor bridge arm, so that the inverter topology is converted from five bridge arms to four bridge arms. At this time, the variable-frequency speed regulation system can keep normal operation in the four-bridge-arm mode, and system shutdown caused by common bridge arm failure can be avoided.