11results about How to "Extend power supply time" patented technology

The invention discloses a multi-stage recovery method and system for recovering power supply for an important load based on a micro-grid, and relates to the field of power distribution network control of a power system, and the method comprises the steps: recognizing all recovery paths between the micro-grid and the important load under a steady state condition, removing the paths which do not meet a constraint condition, and after a fault occurs and a power failure occurs, carrying out the recovery of all recovery paths. Identifying and storing the recovery paths which are not influenced by the fault in the residual paths in a candidate recovery path table; identifying an available micro-grid, and deleting a path starting from a non-available micro-grid in the candidate recovery path table; based on the candidate recovery path table and the constraint condition, constructing a recovery scheme, and evaluating a target function value of the recovery scheme; selecting an optimal recovery scheme by adopting a multi-stage recovery method according to the target function value of the recovery scheme; according to the invention, the power supply time of the important load is longer; the uncertainty of power grid energy is considered, and a recovery scheme is flexibly determined according to the available condition of the micro-grid after the fault.

The emergency rescue communication system comprises an emergency rescue vehicle and an unmanned aerial vehicle, and the unmanned aerial vehicle is connected with the emergency rescue vehicle through a photoelectric composite cable; the unmanned aerial vehicle carries a public network antenna, a private network antenna and monitoring equipment; the emergency rescue vehicle comprises a vehicle control system, an unmanned aerial vehicle control system, a tower mast control system, a public network communication system, a transmission system, a transmission switching system and a base station switching system. The system has the advantages that the advantages of the mooring type unmanned aerial vehicle and the emergency rescue vehicle are combined, the power supply time of the mooring type unmanned aerial vehicle is greatly prolonged, the problem that a ground optical cable is prone to being affected by disasters and interrupted is effectively solved through real-time monitoring of the optical cable state, and the stability and health degree of a communication link are guaranteed. Meanwhile, a public network communication mode and a private network communication mode are provided, the communication coverage is effectively expanded, the efficiency and reliability of emergency communication are improved, and the efficient, stable and flexible emergency communication and rescue communication system is created.

The invention relates to the technical field of thermal batteries, in particular to high-conductivity slow-release heating powder and a preparation method and application thereof.The high-conductivity slow-release heating powder is prepared by introducing high-conductivity conductive graphite and slow-release inert powder and optimizing the raw material ratio in the high-conductivity slow-release heating powder, namely, 60%-80% of Fe powder, 15%-35% of KClO4 powder, 1%-5% of high-conductivity conductive graphite and 5%-15% of inert dispersed powder; the prepared high-conductivity slow-release heating powder has good conductivity and relatively slow heat release; and the conductivity and heat retention time of the Fe / KClO4 heating powder are obviously superior to those of Fe / KClO4 heating powder in the prior art.

The invention relates to a power failure protection method and system for storage server equipment and a computer device, and the method comprises the steps: monitoring an output signal of a power supply unit through a CPLD, and generating a non-shielding interruption signal when the output signal of the power supply unit is recognized to be abnormal; the power supply switching control unit controls a power supply mode to be switched from the power supply unit to the battery backup unit, controls related necessary hardware to enter a core closing mode through the ACPI and hardware cooperation module, and interrupts power supply to unnecessary hardware; controlling a dirty data identification unit to read a dirty data bitmap marked by the storage server equipment, and positioning dirty data to be protected in a memory of the storage server equipment; the dirty data transferred and stored in the preset storage unit are verified through the cyclic redundancy check unit, when the dirty data passes verification, the storage server device is controlled to execute the shutdown process, and when the power-on signal is received again, the dirty data are read from the preset storage unit and recovered to the memory cache.

The utility model provides an LED linear driving circuit and system, and the circuit comprises a diode which is connected in series with a bus capacitor between the two output ends of a rectifier bridge; the first linear constant current module and the LED lamp are connected in series and coupled between the two ends of the bus capacitor; the second linear constant current module and the LED lamp are connected in series and coupled between the two output ends of the rectifier bridge; wherein when the input voltage is smaller than or equal to the load voltage of the LED lamp, the bus capacitor provides a first driving current for the LED lamp through the first linear constant current module; and when the input voltage is greater than the load voltage of the LED lamp, the input voltage provides a second driving current for the LED lamp through the second linear constant current module. According to the invention, better current THD can be provided by switching the driving current of the LED load, and the stability and reliability of the system are improved.

The utility model relates to the technical field of monitoring substations, in particular to a mining flame-proof and intrinsic safety type monitoring substation, which comprises a shell which is divided into a main intrinsic safety cavity and an uninterruptible power supply cavity by a partition plate. A network management machine with multiple data interfaces, a high-definition display screen in signal transmission with the network management machine, a digital signal acquisition unit, a looped network switch and an analog signal acquisition unit are fixedly arranged in the main intrinsic safety cavity; a transparent observation window is embedded in the shell and located above the high-definition display screen. The system has the advantages of long power supply time after power failure, strong anti-interference capability and good signal transmission effect, is internally provided with a database storage conversion system, is high in integration level and strong in universality, and simultaneously displays intuitively acquired information data.

This invention relates to an emergency power supply distribution and energy storage wall system, comprising an integrated wall-type shell, a dual-busbar power distribution architecture, a multi-mode seamless switching module, a load identification module, and an embedded energy management system. The dual-busbar power distribution architecture, the multi-mode seamless switching module, and the load identification module are housed within a distribution box, which is also housed within the integrated wall-type shell. The multi-mode seamless switching module enables uninterrupted voltage waveform switching of the load from the constant power bus to the emergency bus. The load identification module obtains the real-time current waveform of the load through high-frequency sampling and compares it with a built-in feature library to identify the load type. The embedded energy management system receives grid status, battery state of charge, load identification information, and user-preset strategies to execute tiered load control strategies. Compared with existing technologies, this invention offers advantages such as extending the power supply time of critical loads, ensuring stable load operation, and improving system readiness.

The application relates to the technical field of energy storage, and provides a battery cell module and a battery pack. The battery cell module comprises a plurality of battery cells and a special-shaped bus assembly. The plurality of battery cells are arranged in at least two rows and an odd number of columns; two electrodes on each battery cell are arranged at intervals along the column arrangement direction; the plurality of battery cells in the odd number of columns comprise battery cells in a separate column and battery cells in the remaining columns; along the row arrangement direction, the battery cells in the separate column are located at the end of the battery cells in the remaining columns; among the battery cells in the remaining columns, two adjacent battery cells in each row are connected in parallel to form a battery cell group, so that each row comprises a plurality of battery cell groups arranged in layers; and the plurality of battery cell groups in each row are connected in series. At least two battery cells in the separate column are connected in parallel through the special-shaped bus assembly. In this way, the capacity of the battery cell module can be increased without changing the output voltage. When the number of battery cell columns of the battery cell module is odd, at least two battery cells in the separate column can also be connected in parallel, so that the arrangement of the battery cells in the battery cell module is not limited by the number of battery cell columns.

The utility model discloses a power distribution system simultaneously supplying power by double commercial power and double UPSs, which relates to the technical field of power supply equipment and comprises a first commercial power bus, a second commercial power bus, a power distribution cabinet, and a first UPS device, a second UPS device, a circuit breaker K1, a circuit breaker K2, a circuit breaker K3, a circuit breaker K4, a circuit breaker K5, a circuit breaker K6, an alternating current contactor KM1 and an alternating current contactor KM2 which are arranged in the power distribution cabinet. Wherein the first-section commercial power bus and the second-section commercial power bus are both divided into two paths, the third-stage equipment is connected with the first-section one-path commercial power and the second-section one-path commercial power, the second-stage equipment is connected with the alternating current contactor KM1, the first-stage equipment is connected with the alternating current contactor KM2, and when one path of commercial power is interrupted, only the third-stage equipment connected to the path of commercial power is influenced, and the third-stage equipment is not influenced. And the secondary equipment and the primary equipment are not influenced, when the two paths of mains supply are interrupted, the primary equipment can be powered by the UPS, and when one UPS is used up to stop power supply, the UPS can be switched to the other UPS to supply power, so that the power supply time is prolonged.

This invention provides a learning machine control method, device, electronic device, and storage medium, relating to the field of control technology. The learning machine control method includes: controlling a distance sensor to start based on a start command from the learning machine; acquiring the distance value between a target object and the learning machine collected by the distance sensor; performing position detection on the target object based on the distance value to obtain a position detection result; if the position detection result indicates that the target object is within a preset range of the learning machine, then controlling the distance sensor to turn off and controlling a temperature sensor to start; acquiring the temperature value of the target object detected by the temperature sensor; performing type identification on the target object based on the temperature value to obtain a type identification result; if the type identification result indicates that the target object is a human body, then controlling the temperature sensor and distance sensor to turn off and controlling a camera to start for posture detection, thereby reducing energy consumption, extending the battery life of the learning machine, reducing the number of charging cycles, and improving the user experience.

The present application relates to the technical fields of hydrogen production reaction device, in particular to a fuel cell power supply equipment based on hydrolysis hydrogen production unit, which comprises a shell, a reaction mechanism and a separation and purification mechanism are arranged in the shell; the reaction mechanism comprises a raw material liquid inlet tank and a fuel tank, both of which are connected through a first pipe body, and a peristaltic pump is arranged on the first pipe body; the separation and purification mechanism comprises an impurity separator, a drying and condensing mechanism and a dehumidifier which are sequentially connected through a second pipe body, a decontamination mechanism is arranged in the impurity separator, a dehumidification mechanism is arranged in the dehumidifier, the dehumidifier is connected with the fuel cell through a third pipe body, and a hydrogen buffer tank is arranged on the third pipe body; the fuel cell is connected with the raw material liquid inlet tank. The present application adopts a modular hydrogen production unit design, constructs an easy-to-disassemble fuel cell hydrogen supply system, and uses an on-site hydrogen production mode to stably and durably supply hydrogen for the fuel cell, which breaks through the limitations of hydrogen production and storage difficulties and high transportation cost.