5136 results about "Power supply unit" patented technology

Air conditioning device (1) for motorhomes, comprising: - at least one first heat exchanger for exchanging heat with the air circulating through it; - a cooling circuit (8) for a cooling fluid, with a path passing through the first heat exchanger; - a compressor (7) which includes an electric motor, for circulating the cooling fluid in the cooling circuit (8); - a power supply unit that can be connected to an external power supply to receive an electrical input current or electrical input power and to generate a variable supply voltage to drive the electric motor with an electrical supply current, - a controller (11) connected to the power supply unit that is suitable for receiving input data representative of a reference value of the electrical input current or electrical input power and that is programmed to adjust the power supply unit to generate the supply voltage with a reference amplitude and / or frequency such that the electrical input current or electrical input power is below the reference value; - a positioning device designed to determine the position of the air conditioning device (1); and - a memory containing a plurality of reference values ​​corresponding to a plurality of locations, wherein the controller (11) is capable of receiving a location signal from the positioning device and of setting as input data one of the reference values ​​present in the memory depending on the location signal.

The invention discloses a power failure and recovery logic-based power supply fault diagnosis method for a low-voltage power distribution network, which belongs to the technical field of power supply fault diagnosis and comprises the following steps of: converting a user unstructured power failure complaint into a standardized event tag by utilizing a natural language processing technology, synchronously aligning an ammeter power failure pulse and a branch switch action record, and performing power failure diagnosis; constructing a multi-dimensional space-time event sequence; a fault propagation logic network is established through power supply unit topology division, a fault diffusion path is deduced according to a power failure time sequence difference of adjacent units and a failure state of a protection device, and an initial fault point is reversely positioned. And meanwhile, the fault association probability between the units is dynamically corrected, and a weighted candidate fault chain is generated. And through multiple verification mechanisms, the fault propagation tree is reversely corrected. And finally, calculating the confidence coefficient, and screening out the fault chain with the optimal time-space consistency. The problems of multi-source information splitting, space-time correlation weakening and insufficient verification reliability in low-voltage power distribution network fault positioning are solved.

The invention relates to the technical field of electrical equipment detection, and discloses an electrical equipment real-time state live detection method and system, and the system comprises a non-contact multi-source sensing array, an edge calculation unit, a high-frequency pulse excitation module, a self-adaptive installation structure, an intelligent diagnosis platform, and a self-energy-taking power supply unit. When electrical equipment state live-line detection is carried out, infrared thermodynamic characteristics, ultraviolet corona intensity and ultrasonic discharge signals are fused and collected through a non-contact multi-source sensing array, multi-parameter real-time sensing under the live-line condition is achieved, the problem of signal distortion caused by electromagnetic interference in traditional detection is solved, and the accuracy of state parameter extraction is improved; and meanwhile, the multi-dimensional feature data is subjected to standardization processing in combination with an edge calculation unit, so that the system can eliminate interference of environmental factors on detection results, the consistency of evaluation results under different working conditions is guaranteed, and state diagnosis errors are reduced.

The main object of the invention is an antenna module for an acoustic point defence system (SAD) and an acoustic system comprising said module. The antenna module comprises at least one array of electroacoustic transmitting transducers (TX) and at least one array of electroacoustic receiving transducers (RX). The arrays of transmitting transducers and the arrays receiving transducers have the characteristic of being housed in a watertight container adapted to be submerged in water when the module is in operation, for example by means of a hoist or winch device (SMMR - Launching and Recovery System). The container has watertight accesses, for example via watertight connectors, for at least one cable for a power supply signal, connected or connectable with a power supply unit external to the container, and for at least one cable for a data signal, connected or connectable to a remote control unit adapted to send commands and receive target detection states and / or signals. The antenna module comprises a local control and calculation unit housed inside the container, which local control and calculation unit is equipped with an input for the power supply signal and a port for the data signal, and is interfaced with the arrays of transducers for controlling the signal transmitted by the arrays of transmitting transducers and processing the signals received by the arrays of receiving transducers on the basis of commands received by the data port.

In a battery monitoring device for monitoring a state of a rechargeable battery that includes an electrolyte and a plurality of electrodes, a response signal input unit is configured to receive a response signal of the rechargeable battery to a predefined AC signal, and a calculation unit is configured to calculate a complex impedance of the rechargeable battery based on the response signal. A power supply unit is configured to receive a power supply voltage from the rechargeable battery and supplies the power supply voltage to at least the calculation unit. A first electrical path connecting the rechargeable battery to the power supply unit and a second electrical path connecting the rechargeable battery to the signal control unit are provided independent of each other. The signal control unit is configured to cause the rechargeable battery to be monitored, as a power source, to output the predefined AC signal.

The invention provides a light storage coordinated feed-in new energy microgrid power quality improving device and method, and relates to the technical field of microgrid distributed control. The light storage coordinated feed-in new energy microgrid power quality improving device comprises a series converter, a parallel converter, a battery energy management system and a direct current power supply unit. According to the optical storage coordinated feed-in new energy microgrid power quality improvement method, a prediction equation is established for a series converter to decouple a control target, and power grid current can be accurately compensated. An adaptive compensation control technique based on a VLLMS algorithm is employed for the parallel converter to generate a control signal for the parallel converter. A virtual inertia control strategy is provided for a battery energy management system, and inertia support is provided for a series converter and a parallel converter. And aiming at a non-ideal voltage condition, constructing a PB-SM compensation strategy of the new energy micro-grid power quality improving device based on optical storage coordinated feed-in.

The present invention relates to the field of intelligent power distribution technology, specifically to an intelligent city power distribution method and system, including the following steps: counting the instantaneous power output values ​​and current power flow directions of all regional power supply units in the urban power grid, calculating the power increments within adjacent time intervals, judging the power increment change trend, and screening the power supply nodes to obtain the periodic power increment trend analysis results. In the present invention, by counting the instantaneous power output values ​​and power flow directions of the power supply units, an accurate judgment of the power change trend is achieved, the impact of sudden load fluctuations is reduced, and the problems of load overload or redundant scheduling in the traditional mode are avoided according to the calculated load growth rate. By analyzing the power flow direction to adjust the path, the load units are sorted according to the real-time demand, power factor and load change rate, and the power redundancy of non-critical areas is reduced in combination with the optimization calculation of the power supply scheduling path, and the responsiveness of the power grid in emergency situations is improved.

The present application provides an electric vehicle and a battery system. The electric vehicle comprises: a frame; a first power consumption unit and a second power consumption unit, the first power consumption unit and the second power consumption unit being connected to the frame; and a battery system, comprising a first power supply unit and a second power supply unit, the first power supply unit and the second power supply unit each comprising at least one battery pack, the first power supply unit supplying power to the first power consumption unit, and the second power supply unit supplying power to the second power consumption unit, wherein the at least one battery pack can supply power to a handheld tool.

The utility model relates to a radio frequency power amplification circuit with a harmonic suppression function and a radio frequency chip. The radio frequency power amplification circuit comprises an input matching unit, a first-stage power amplification unit, a first-stage bias unit, a first-stage power supply unit, an inter-stage matching unit, a second-stage power amplification unit, a second-stage bias unit, a second-stage power supply unit and an output matching unit. According to the utility model, the LC type trap circuits are designed and used in the power supply unit and the inter-stage matching unit, so that secondary, tertiary and high-order harmonic suppression is realized in the radio frequency power amplification circuit; meanwhile, based on LC circuit structures in the power supply unit and the inter-stage matching unit, the inter-stage matching bandwidth is widened, and the linearity of the multi-stage power amplification unit is improved.

The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle detection tracking device, method and equipment, which comprises a data sensing unit, a calculation unit, a mechanical and power supply unit, a communication and storage unit and a countering execution unit, and is characterized in that the data sensing unit is used for acquiring image data and servo turntable rotation angle data; the calculation unit is used for deploying a lightweight neural network model and a multi-algorithm fusion process, processing sensor data and realizing unmanned aerial vehicle target detection and tracking logic control; the mechanical and power supply unit is used for providing physical support, servo motion capability and energy supply for the device; the communication and storage unit is used for real-time data transmission and storage and encryption archiving of historical data and image videos; and the countering execution unit is used for implementing signal interference or physical interception on the detected and tracked target. Therefore, the problems of easy target loss, low small target identification precision, poor complex environment adaptability, insufficient countering means and the like of a traditional device are solved.

The invention discloses a transformer substation construction site three-dimensional map construction device and method, and the device comprises a three-dimensional scanning laser radar which is used for collecting three-dimensional point cloud data; the RTK positioning module is used for acquiring position data; the panoramic camera is used for acquiring panoramic image data of a construction site; the attitude sensor is used for acquiring dynamic attitude information; the main control unit is used for receiving the collected data information and carrying out data processing, data fusion and three-dimensional map construction; the communication module is used for sending the three-dimensional map constructed by the main control unit to the sink node; the power supply unit is used for providing power support; and the main control unit fuses the image data and the three-dimensional point cloud data through a texture mapping algorithm to generate a three-dimensional map of the true color point cloud. By adopting a multi-sensor fusion technology and an efficient algorithm processing method, an accurate three-dimensional map can be constructed in real time in a dynamic construction environment, the intelligent level of construction site management is improved, and efficient implementation of the construction process is promoted.

The invention discloses a multiband high-voltage power supply control system and a normalization control and protection method thereof, and relates to the technical field of power supply control, and the method comprises the steps: collecting multi-mode signals of S, C and Ku band high-voltage power supply systems and a cooling system; an SDAE deep network and an integrated learning AdaBoost framework are combined to construct a fault diagnosis model, and a fault type and confidence are obtained according to signal features; when a fault occurs, high-voltage output of a corresponding power supply unit is cut off and reported through an isolation interface, and a deep reinforcement learning agent is used for carrying out protection action intelligent decision making; a digital twinborn model of a power supply unit is constructed, an improved grey wolf optimizer is used for multi-task collaborative optimization, optimized system parameters are acquired and issued to a PLC for execution, and waveband output stability is ensured. According to the invention, high reliability, rapid response and intelligent operation and maintenance of the multi-band high-voltage power supply system are realized through deep integration of multi-source signal acquisition, intelligent fault diagnosis, adaptive protection decision and digital twinning optimization.

The invention discloses a power supply method of a storage server, electronic equipment, a storage medium and a program product, and relates to the technical field of power supply, and the power supply method comprises the following steps: using a power supply unit whose rated output power is less than a power consumption limit value of the storage server to supply power to the storage server; if the current power consumption value of the storage server is greater than the rated output power of the second power supply unit and the electric quantity of the backup battery unit is greater than the primary standby power threshold value, the second power supply unit and the backup battery unit are used for supplying power to the storage server; the technical problem of resource waste caused by the fact that the PSU and the BBU with the rated output power larger than 2000 W are used only when the double AC input circuits connected with the double PSUs are powered off or the double PSUs are abnormal in the prior art is solved, and the technical effect of avoiding resource waste is achieved.

The invention relates to the field of energy storage loop monitoring, and particularly discloses an innovative energy storage loop system for an operating mechanism of a medium-voltage switch cabinet, which realizes soft start and contactless control of an energy storage motor by introducing a dynamic motor control circuit. The multistage stroke detection device replaces a mechanical limit switch, provides real-time and continuous position monitoring for the energy storage mechanism, and thoroughly eliminates feedback lag and inaccuracy. The core energy storage state analysis unit can identify abnormal working conditions in the energy storage process in real time through intelligent acquisition, analysis and decision making of signals. Besides, the power supply unit provides a stable operation basis, and the bidirectional communication interface ensures information interaction between the system and the external environment, so that an intelligent energy storage ecological system with controllable closed loop, feedback of state and early warning of fault is jointly constructed, and the response speed and the operation stability of the medium-voltage switch cabinet operating mechanism are comprehensively improved.

The invention discloses an MEMS and TMR fused overhead line lightweight monitoring device, and the device comprises an annular shielding cover which sleeves a to-be-detected overhead conductor and is coaxial with the to-be-detected overhead conductor, and the side wall of the annular shielding cover is provided with a through hole; the sensing unit comprises at least two MEMS electric field sensors and at least two TMR magnetic field sensors and is used for detecting an electric field and a magnetic field generated by the overhead conductor to be detected; the analysis processing unit is used for receiving, processing and transmitting the signal generated by the sensing unit; and the power supply unit is arranged in the annular shielding cover and is electrically connected with the sensing unit and the analysis processing unit. The beneficial effect of the invention is that the coupling crosstalk phenomenon generated by an external electromagnetic field can be effectively suppressed. Moreover, the monitoring device is small in size, is convenient to install and deploy in a complex line environment, provides a stable hardware basis for precise inversion of voltage and current through structural cooperation, and provides reliable support for intelligent monitoring of an overhead line.

The invention discloses a power supply control method and device of a server and electronic equipment, and relates to the technical field of computers, power supply modes of a group of power supplies comprise a static redundant power supply mode and a dynamic redundant power supply mode, and the method comprises the following steps: obtaining power consumption data of the group of power supplies in a specified historical period to obtain historical power consumption data; on the basis of the historical power consumption data, the load trend of the group of power supplies in a specified future time period is predicted, the predicted load trend of the group of power supplies is obtained, and the specified future time period is a future time period with the current moment or a future moment after the current moment as a starting moment; and according to the predicted load trend and the specified mode switching condition, dynamically switching the power supply mode of a group of power supplies, thereby solving the technical problems of low efficiency of the power supplies and serious electric energy waste in a power supply control method in the related technology, and achieving the technical effects of improving the efficiency of the power supplies and reducing the electric energy waste.

The invention relates to the technical field of electric power simulation practical training safety protection, and discloses a quadruple safety protection system and method for electric power simulation practical training, and the system comprises a central control unit, and a circuit breaker unit, a safety power supply unit, a virtual load power supply unit and an electric leakage monitoring unit which are in communication connection with the central control unit. The circuit breaker unit, the safety power supply unit, the virtual load power supply unit and the electric leakage monitoring unit are connected in sequence; the circuit breaker unit, the safety power supply unit, the virtual load power supply unit and the electric leakage monitoring unit respectively carry out fault judgment and send a fault judgment result to the central control unit; and the central control unit generates a corresponding cooperative control instruction according to the fault judgment result so as to control other units to perform cooperative protection. Through a quadruple protection system, safe operation of electric power simulation practical training is guaranteed, the risks of equipment damage and personnel safety accidents are effectively reduced, and the safety, reliability and practicability of electric power simulation practical training are improved.

The invention provides a power management method, electronic equipment and a storage medium. The method comprises the steps of calling an equipment management daemon process to load a preset rule corresponding to a plugging event in response to a captured plugging event representing plugging operation of a target power supply unit under the condition that a substrate management controller is started; according to the preset rule, a target drive corresponding to the target power supply unit is dynamically loaded, relation management operation corresponding to a plugging event is executed on the target power supply unit and the target drive, and the substrate management controller is provided with a power management module and the target drive. The power management module communicates with the target power supply unit through the target driver; and in response to determining that the relationship management operation is successfully executed, sending a restart instruction to the power management module, and when it is detected that the power management module is restarted in response to the restart instruction, updating the in-place state and the power management information of the target power supply unit.

The present disclosure includes an inverter connected to a power supply unit via a positive electrode side electrical path and a negative electrode side electrical path and including switching elements, a rotary electric machine including windings connected to each other at a neutral point and inputting and outputting power from and to the power supply unit via the inverter, a connection path electrically connecting an intermediate point between the storage batteries of the power supply unit to the neutral point of the windings, and a device including a first terminal and a second terminal enabling energization between the power supply unit and the device. The first terminal is connected to the connection path, and the second terminal is connected to at least one of the positive electrode side electrical path and the negative electrode side electrical path.

The utility model discloses outdoor operation equipment. The outdoor operation equipment comprises a frame; the frame is provided with a walking assembly used for supporting outdoor operation equipment to walk; the cutting assembly is used for executing outdoor operation; the power supply device is at least used for supplying power to the outdoor operation equipment, and the power supply device comprises a power supply unit which can be detached from the outdoor operation equipment to supply power to other tools; the battery bin is used for being assembled and electrically connected with the power supply unit; and the multiple temperature adjusting assemblies are arranged on the two oppositely-arranged side plates of the battery bin correspondingly, and the multiple temperature adjusting assemblies are used for conducting heat exchange between heat in the power supply unit and external air. According to the outdoor operation equipment, the battery pack can be reasonably cooled and heated.

The invention discloses a neck-hung sign language interpretation device and a sign language semantic recognition interpretation method thereof.The neck-hung sign language interpretation device comprises a wearing support which defines a neck surrounding space and comprises a middle connecting arm and two shells, and the two shells are connected to the two sides of the middle connecting arm respectively; the image acquisition unit is arranged on the front side of the shell, comprises a three-dimensional depth camera and an adjusting mechanism for driving the three-dimensional depth camera to rotate, and is used for dynamically tracking and acquiring continuous sign language videos; the processing module is integrated in the shell, comprises a main control processor and a memory, and is used for operating a sign language recognition algorithm; the voice output unit is electrically connected with the main control processor and is used for playing the translation result; and the power supply unit supplies power to the image acquisition unit, the processing module and the voice output unit. Gesture languages used by the deaf-mute for communication are converted into natural languages which can be easily understood by normal people, the deaf-mute group is helped to speak, and the problem of information output when the deaf-mute communicates with the normal people is solved.

The invention relates to the technical field of power grid side energy storage, in particular to a power grid side flywheel energy storage stationing method considering source grid requirements, and aims to solve the problem of how to improve the adjusting effect of power grid side shared energy storage in the peak period of power utilization according to the source grid requirements. The invention provides a power grid side flywheel energy storage point distribution method considering a source network demand. The point distribution method comprises the following steps: determining pre-site selection data of power grid side shared energy storage according to an energy storage demand of a target area and a topological structure of cable equipment in the target area; acquiring cable equipment corresponding to the corrected site selection data, and calculating an energy storage demand corresponding to the corrected site selection data according to historical electricity consumption of the cable equipment; and obtaining a power supply unit in the target area, planning all the corrected site selection data according to the power supply capability and the energy storage demand of the power supply unit, and obtaining the actual distribution point of the power grid side shared energy storage.

The invention provides a power supply unit of an implantable cardioverter defibrillator and the implantable cardioverter defibrillator. The power supply unit of the implantable cardioverter defibrillator comprises a switching power supply, a linear power supply and a controller, the output of the power supply unit comprises VDD and VPP; the controller comprises a user-defined mode and a plurality of special scene modes; when the controller is in the custom mode, the switching power supply and the linear power supply work based on a set program; the controller is configured to set the custom mode and the special scene mode according to a time sequence corresponding to a current application scene of the implantable cardioverter defibrillator according to the time sequence corresponding to the application scene so as to control the working states of the switching power supply and the linear power supply. And realizing independent or joint output of the VDD and the VPP corresponding to the application scene. Through the configuration, reliable implementation of the priority of each function is ensured, the power consumption is reduced, and the reliability and efficiency requirements of power management are met.

The embodiment of the invention provides an intelligent electric precipitation system. The intelligent electric precipitation system comprises a power management module, a working condition sensing module, a dynamic optimization module and a cooperative control module, the power supply management module comprises a high-frequency power supply unit and a power-frequency power supply unit, and the high-frequency power supply unit adopts a full-bridge series-parallel hybrid resonance circuit; the working condition sensing module is configured with a distributed sensor network; the dynamic optimization module establishes a multi-objective optimization model; the cooperative control module realizes a four-level control architecture; the system realizes optimal balance of dust removal efficiency and energy consumption by collecting working condition parameters in real time and dynamically adjusting working parameters of a power supply. According to the intelligent electric dust removal system, through a hybrid power supply framework, a multi-sensor network and four-stage cooperative control, the dust removal efficiency is improved, and the equipment reliability and the intelligent level are improved.

The invention relates to a fault detection method and system suitable for a vehicle body provided with a retarder, and relates to the technical field of vehicle body fault detection. The method comprises the following steps: acquiring and detecting a vehicle body state signal of a vehicle body; vehicle body dynamic signals of a vehicle body are obtained and detected; and accessing a buffer and enabling the retarder to enter a test mode to test the function of the retarder. The fault detection system is composed of a controller, a speed signal detection unit, a signal amplifier and a power supply unit which are connected with one another to work cooperatively. According to the method, the effects of comprehensively detecting the fault of the vehicle body provided with the retarder, effectively positioning the fault position and evaluating the fault condition are achieved.

A configurable power supply bay system. The configurable power supply bay system includes a power supply bay and a power supply bay system configuration component, the power supply bay configuration component being configured to be mounted to the power supply bay, the power supply configuration component configuring the power supply bay to mount a plurality of types of power supply units within the power supply bay, each of the plurality of types of power supply units having respective external characteristics.

The utility model discloses a self-service billiard intelligent cabinet, including a cabinet body and a detection mechanism, wherein a rod storage bin and a ball storage bin are provided inside the cabinet body, and both are hinged with bin doors, and the inner walls of the rod storage bin and the ball storage bin are provided with electric control locks corresponding to the bin doors, and a circuit board is also provided inside the cabinet body, and the electric control lock is electrically connected to the circuit board, and at least a power supply unit, a timing unit, a wireless communication unit and a control unit are integrated on the circuit board; the detection mechanism includes a first detection device and a second detection device, the first detection device is provided at the bottom of the rod storage bin, and the second detection device is provided at the bottom of the ball storage bin, and the first detection device and the second detection device are both electrically connected to the circuit board. The technical solution of the utility model can prevent users from evading deductions, and can also detect the specific number of cue sticks and billiard balls, thereby avoiding property losses.

The invention discloses an intelligent necklace for a shepherd based on multimode fusion positioning and a control method of the intelligent necklace. The intelligent necklace for the shepherd based on multimode fusion positioning comprises a necklace body of a strip-shaped structure. A multi-mode hybrid positioning unit, a dual-mode communication unit and a power supply unit are arranged on the necklace body; the multimode hybrid positioning unit is composed of a speed sensing module, a satellite positioning module, an inertial navigation compensation module and a UWB auxiliary positioning module, and is used for generating a positioning signal. The dual-mode communication unit is electrically connected with the multi-mode hybrid positioning unit, and signal interaction between the multi-mode hybrid positioning unit and the mobile terminal is realized through 4G / Cat-M1 and LoRa protocols; the power supply unit supplies power to the multi-mode hybrid positioning unit and the dual-mode communication unit.

A power source automatic transfer device is provided, including: a first and second power source input end; an auxiliary power supply unit whose electric energy is acquired from a first and second power source; a device output end connected to a load; and a power source switchover unit including a control unit and a power source switchover switch, the power source switchover switch including a first and second power source switchover switch, wherein a first input end of the first and second power source switchover switch are respectively connected to the first power source input end and the second power source input end, a second input end of the first and second power source switchover switch are both connected to an output end of the auxiliary power supply unit, and an output end of the first and second power source switchover switch are connected with the device output end.

The invention provides a control method and device which can be applied to the technical field of server heat dissipation. The control method comprises the following steps: processing a plurality of pieces of obtained initial temperature data of a plurality of detection points in at least one power supply unit, and determining target temperature data in the plurality of pieces of initial temperature data; processing the target temperature data, the environmental data of the power supply unit and the related load data to obtain temperature features, environmental features and load features for the plurality of fluctuation types; obtaining a temperature prediction result of the power supply unit at the later moment based on the temperature characteristics, the environment characteristics and the load characteristics; and controlling the flow of the liquid cooling device in the power supply unit based on the temperature prediction result.