43results about How to "Solve the problem of power failure" patented technology

The invention relates to a method for enhancing reliability and availability of dual-computer clusters, is applicable to big data cluster storage and belongs to the technical field of cluster storage. According to the method provided by the invention, aiming at the problem that in the conventional dual-computer clusters, the heartbeat information transmission is only realized by a network or a serial port, after the serial port and the network generate faults, the heartbeat information among the clusters cannot be transmitted, the clusters split brains and battle for resources mutually and the data generate inconsistency, in order to solve the problem, a method and device for transmitting the heartbeat information based on the shared disk among the clusters is designed; a space is reserved on the disk as a heartbeat disk; when the heartbeat network generates a fault; communication is carried out through the heartbeat disk; the brain split is avoided; the consistency of the clusters is enhanced; and the high reliability and high availability of the clusters are ensured.

An apparatus for auto-regulating the input power source of a driver is provided. The apparatus includes a load detector and a controller. The load detector detects a load current and outputs a detection signal according to the load current. The controller is coupled to the load detector and receives the detection signal. The controller provides an operation voltage between a first voltage and a second voltage, wherein the first voltage is lower than the second voltage. The operation voltage is supplied to the driver and regulated flexibly according to different load demand. In the light loading, the device for auto-regulating the input power source can improve the use efficiency of electric power.

The invention discloses an electronic equipment operation method based on a battery and electronic equipment. The method comprises the following steps that in the condition under a temperature threshold, in the process that corresponding current is output to system load by the battery in accordance with the current requirement of the system load, the output voltage of the battery is monitored until the temperature of the battery is equal to or higher than the temperature threshold; whether the output voltage of the battery is lower than preset voltage is judged; and when the output voltage of the battery is lower than the preset voltage, at least one electronic element is controlled, so as to reduce power consumption and guarantee the output voltage of the battery to be higher than cut-off output voltage. In the scheme, when the monitored output voltage is lowered to a certain degree, the power consumption of the system load is reduced, so as to reduce the current required by the system load, so that the current spike is prevented from being generated, thereby guaranteeing the output voltage of the battery to be kept higher than the cut-off output voltage, and the problem of system poweroff caused by the current spike during operation of the electronic equipment at low temperature is effectively solved.

The invention discloses an anti-drop plug and an anti-drop charger. The anti-drop plug comprises a housing, pins on one end of the housing, an anti-drop button on the housing and an anti-drop structure arranged in the housing and the pins. The anti-drop button is used for controlling the anti-drop structure to stretch out and draw back. When the anti-drop structure stretches out from the pins, the anti-drop plug is fixed in the housing of a socket. The anti-drop charger comprises the anti-drop plug. The anti-drop plug provided by the invention solves the problem in the prior art that a plug is liable to drop from a socket, the anti-drop function of the plug is realized, and the power failure problem caused by dropping is avoided.

The invention provides a narrow-linewidth tunable laser system and an operation method thereof. A tunable laser module of the system comprises a semiconductor laser, a driving circuit and a wavelength-tunable control submodule, wherein the driving circuit and the wavelength-tunable control submodule are connected with the semiconductor laser. A switch voltage stabilizer, connected with an inductor and a diode, of a power management submodule enables positive voltage to be converted into negative voltage so as to supply electricity to the system. A microcontroller connected with a host is connected with the driving circuit through digital-to-analog conversion to transmit instructions of the host and states of the laser. The microcontroller and a power failure detection submodule are used for detecting circuit voltage of the laser at regular time, and power is recovered in time when power failure is found out. The operation method of the narrow-linewidth tunable laser system includes the steps that after being initialized, the microcontroller transmits preset default data frames to the laser, the data frames returned by the laser are read, the situation that the data frames have no error is determined, whether power failure occurs or not is detected at regular time, updated instructions of the host are received and transmitted to the laser, and the current working state information of the laser is transmitted to the host. The system only needs to be powered up by a single power supply and can be used easily in an embedded mode. A tuning control interface of the host is simple and visual, and reliable operation is guaranteed through power failure self-detection.

The invention relates to a novel high-speed electrical desalting and dewatering apparatus belonging to the technical field of crude oil pretreatment. The apparatus comprises an exclusive transformer for providing high voltage for plate electrodes in an electrical desalting and dewatering tank, at least two layers of horizontal high-voltage plate electrodes, insulating suspensions and inlet oil ejectors, wherein a crude oil flow baffle is designed between every two adjacent inlet oil ejectors, the exclusive transformer connects high-frequency pulse high voltage to the high-voltage plate electrodes in the electrical desalting and dewatering tank by means of a high-voltage electricity introduction bar, and a drain hole is designed on the flow baffle; and a crude oil flow diversion device of which the direction is opposite to the direction of crude oil ejected by the inlet oil ejectors is designed at the lower end of the drain hole, and high-frequency pulse high voltage is output to the high-voltage plate electrodes in the electrical desalting and dewatering tank so as to form high-frequency pulse high-voltage electric field regions among the plate electrodes. The invention can further improve the treatment capacity of the electrical desalting apparatus, and the treatment capacity is increased to 2.0-2.5 times compared with the traditional electrical desalting apparatus. Simultaneously, the invention solves the problems of power failure, tripping, short circuit and the like of the electrical desalting transformer often existing in the process of treating low-quality crude oil, thereby ensuring that the apparatus can smoothly run for a long-time cycle under various working conditions.

The invention belongs to the technical field of aviation electronics and particularly relates to a storage method for NAND FLASH data. According to the storage method, the problem about data storage and management in the field of aircraft airborne equipment can be effectively solved. The method supports multi-partition operation, automatic cycle record in each partition can be realized, and the characteristic of natural wear leveling is realized; power failure existing in other management methods can be effectively avoided; the function of searching according to time and specific parameters can be supported; particularly in massive data storage, transfer time of a large amount of unwanted information can be avoided, and the problem about data storage and management which generally exist in the field of the aircraft airborne equipment is effectively solved.

The invention provides a distribution network switching station relay protection operation optimization method. The distribution network switching station relay protection operation optimization method gives a good solution to the problem that the whole distribution network switching station loses electric power because a bus charger malfunctions in a dead zone and a bus malfunctions during the paralleling operation process by mounting segmented rheology, optimizing charging protection logic, increasing segmented time-delay over-current protection, configuring bus protection, and the like.

The invention relates to a regeneration electromotive force discharge device for DC drive, and the device comprises a current sensor which is directly connected to a DC bus, and is used for monitoring the incoming and outgoing of a current on the bus; a bus MOS tube which is connected to the DC bus, and is used for cutting a regeneration electromotive force and returning the regeneration electromotive force to a switching power supply; a discharge current module which is connected to the DC bus and is used for discharging the regeneration electromotive force; and a DSP which is connected with the current sensor, the bus MOS tube and the discharge current module, collects a signal of the current sensor, compares the output voltage of the signal with a reference voltage, and then obtains the flowing state of the current, thereby controlling the on/off of the bus MOS tube. Compared with the prior art, the device is simple and feasible, and can effectively solve a problem that the poor discharge of DC drive causes the power failure.

The invention relates to an oil well acidification flowback liquid treating technology and device for an offshore oil field. The oil well acidification flowback liquid treating technology comprises the steps that acidification flowback liquid discharged out of a well opening of a Christmas tree is decompressed and heated up; a demulsifying agent and a reverse demulsifying agent are added, and the acidification flowback liquid is fed into an efficient separator for separation of oil, gas, water and mud; separated oily sewage is added with a water treatment agent and then fed into an oil and water separator, water discharged out of the oil and water separator is added with a PH value modifier, enters a pressure reactor to react and then enters a high-speed two-phase separating machine for separation of mud and water, separated water is subjected to fine filtering, oil discharged out of the efficient separator is added with a demulsifying agent and a desulphurizing reagent and then enters a free water removing device for removal of water, oil discharged out of an oil-phase outlet passes through an oil pump and a high-level intense demulsifying device and enters a high-speed three-phase separating machine for removal of water and mud, and the discharged oil enters an offshore oil production platform closed discharging system through excess pressure of the high-speed three-phase separating machine. According to the oil well acidification flowback liquid treating technology and device, the treatment efficiency is high, occupied space is small, transport and hoisting are convenient between offshore platforms, and with the combination of an efficient chemical agent, the acidification flowback liquid is quickly treated to reach the expected index.

The embodiment of the invention provides a server power adapter and battery power supply seamless switching method, which comprises the following steps of detecting the input and output voltage of a power adapter switch; when the input voltage is greater than the output voltage, controlling the switch to be switched on; when the input voltage is smaller than the output voltage, controlling the switch to be switched off by a power supply control chip; detecting the input and output voltage of a battery power supply switch; when the input voltage is greater than the output voltage, controlling the switch to be switched on; when the input voltage is smaller than the output voltage, controlling the switch to be switched off by the power supply control chip. The power adapter and the battery power supply are both connected with a load through the switch, and are used for providing electric energy provide sth for the server. The method provided by the embodiment of the invention solves the problem of system power off or partial component power off caused by voltage drop possibly generated during the conventional switching from the power adapter to the battery power supply of the server.The product stability of the server is improved. The invention also provides a server power adapter and battery power supply seamless switching circuit.

The invention discloses a power down prevention method and device for a memory card. The method comprises the steps of enabling a terminal to continuously or intermittently send data to the memory card; enabling the memory card to feed back response data for the data sent by the terminal; enabling the terminal to judge whether the memory card is in a working state according to the response data; and enabling the terminal to continuously supply power to the memory card in the working state. The device comprises the terminal and the memory card arranged in the terminal. The terminal comprises a first data transceiving unit, a judging unit and a power supply unit, wherein the first data transceiving unit is used for sending the data to the memory card and receiving the response data fed back through the memory card; the judging unit is used for judging whether the memory card is in the working state according to the response data; and the power supply unit is used for continuously supplying power to the memory card in the working state. The memory card comprises a memory module and a second data transceiving unit for receiving the data sent by the terminal and feeding the response data back to the terminal. According to the technical scheme, the power down prevention method and device for the memory card are improved.

The invention relates to a self-supply circuit for a flyback power converter. A bus voltage supply module supplies power to a control chip after the bus is powered on. After the control chip is powered on, the primary winding of the transformer is controlled to work by the power supply control module, and the secondary auxiliary winding of the transformer obtains voltage from the coupling of the primary winding to supply power to the secondary winding of the transformer. The power supply module of the secondary winding of the transformer is charged to supply power to the control chip. The switching module turns off the power supply output of the bus voltage supply module to the control chip after the secondary winding power supply module of the transformer is fully charged. After the powersupply module of the secondary winding of the transform is charged, The bus voltage is cut off, and the auxiliary winding supplies power to the control chip alone. If the power supply module of the secondary winding of the transformer fails or the PWM driving output duty ratio of the control chip is small, and the power supply control module is abnormal, etc., the fault recovery can be carried out, and the control chip can not be powered down.

The invention discloses a power supply processing method, a power supply processing device and a power source. The method includes the following steps that: the power source receives at least two paths of power supply input current, wherein the power supply input current is independent from each other; and when a fault occurs on a power source at a power supply input circuit where the current power supply input current is located, the power supply input circuit is switched to a power supply input circuit where the other power supply input current is located, wherein the other power supply input current can be selected from all the power supply input current except the current power supply input current. With the power supply processing method, the power supply processing device and the power source of the invention adopted, the problem of power outage of a whole set when an input power supply system malfunctions in the prior art can be solved; when one path of input power supply malfunctions, the other path of input power supply can be switched in automatically; and the risk of power outage of equipment in single input power supply when the power supply system malfunctions can be avoided, and power supply cost can be decreased.

The invention discloses preparation and application of a ferromagnetic-doped material. The preparation method comprises the following steps that SrCO3 powder, RuO2 powder and Co3O4 powder are weighedaccording to the proportion for preparing SrRu1-xCoxO3(x=0, 0.05, 0.1, 0.15, 0.2, 0.3), ground, subjected to low-temperature presintering, then fully ground and subjected to high-temperature calcination, finally an adhesive is added to the powder, the powder is ground and pressed, and the material is prepared. According to the ferromagnetic-doped material, conversion of the positive and negative magnetic susceptibility is achieved by controlling temperature change, the material is used for a magnetic storage material and has the advantages of being high in storage speed, nonvolatile, long in service life, small in size, low in power consumption, resistant to radiation and the like, metal-insulation phase change can also be achieved, the material is applied to an intelligent switch material, and the danger of manually controlling a switch in the high-risk industry is avoided.

The invention relates to a dual-redundancy USB port expansion device capable of monitoring in real time, and belongs to the technical field of military ruggedized computers. According to the invention, real-time monitoring of the working state of a USB expansion port is realized by designing a dual-redundancy USB port thought; when a USB port is abnormal in communication, equipment connected withthe USB port can be powered off and restarted on line, and the function of automatically switching to a standby USB port is achieved. The working requirements of USB equipment such as a USB keyboard module, a USB mouse module, a USB voice module, a USB control module, a USB key module and the like of a display control computer and a finger control computer under war preparedness or battle conditions are met; the problems that the USB equipment can be powered off again after being disassembled when communication is abnormal and can continue to work after faults are removed are solved, and the reliability and practicability of a display control computer and a command control computer are improved.

The invention discloses a parallel running fault detection method for double machine sets. The parallel running fault detection method for double machine sets includes that building a parallel running fault detection system for double machine sets, enabling a power gathering module (1), a rotating speed gathering module (2) and a voltage gathering module (3) to respectively gather power, rotating speeds and voltage parameters, sending to a fault detection module (4) through a lead, enabling the fault detection module (4) to detect whether there is a faulted machine set according to the parameters and locate the faulted machine set, and sending signals to a fault processing module (5) to execute faulted machine set processing signals. The parallel running fault detection method for double machine sets precisely detects the fault and meets quick and precise faulted machine set judging requirements in the parallel running of double machine sets.