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

The invention provides a fly-by-wire flight control system power supply self-locking method. Redundant input power supplies are arranged on the left generator, the right generator and the storage battery of an aircraft. The high ends of a first relay, a second relay and a third relay are respectively connected with the first redundant input power supply, the second redundant input power supply and the third redundant input power supply. The low ends of the first relay, the second relay and the third relay are connected with a flight control power switch. The other end of the flight control power switch is connected with the power ground. The normally-closed contacts of the first relay, the second relay and the third relay are respectively connected with a first redundant output power supply, a second redundant output power supply and a third redundant output power supply, and a self-locking relay is arranged on the first relay. The high end of the self-locking relay is connected with the first redundant input power supply. The low end of the self-locking relay is connected with the low end of the first relay. Meanwhile, an aircraft wheel bearing switch is arranged at the signal input end of the self-locking relay so as to meet the requirement of uninterruptible power supply of the fly-by-wire flight control system and reduce the existing fault hidden trouble.

The invention belongs to the technical field of avionics, and in particular relates to a NAND FLASH data storage method, which can effectively solve the problem of data storage management in the field of aviation airborne equipment. This method supports multi-partition operation, can automatically cycle records in each partition, and has natural wear leveling characteristics. It can effectively avoid the power failure problem encountered by other management methods. And it can support search by time and search by specific parameters, especially in the storage of massive data, it can avoid the dumping time of a large amount of useless information, and effectively solve the common problems of data storage management in the field of aviation airborne equipment.

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 discloses an MKB dual-transformer series power supply device comprising a transient damping circuit. The MKB dual-transformer series power supply device comprises a first transformer, asecond transformer and a CPU circuit, wherein the first transformer and the second transformer are connected in series, and the other side of the second transformer is connected to the CPU circuit tosupply power to a CPU; and the MKB dual-transformer series power supply device further comprises the transient damping circuit, the transient damping circuit is arranged between the first transformerand the second transformer. By setting the transient damping circuit, when a motor is started at heavy load, the CPU can still work normally, and when it is judged that the MKB loses power, that is, when the power supply is turned off, a technician does not have to rush to start a standby motor, the MKB power failure problem can be slightly relieved, and this provides sufficient time for the onsite operators.

The invention provides a main board power supply system and method for intelligently switching power supply; wherein, the system includes: a power supply device and a main board; The main board is connected with the power supply device; the power supply device is arranged on the refrigerant pipe of the multi-connected air-conditioning unit, and is used to generate electric energy to supply power to the main board; wherein, the electric energy generated by the power supply device is the flow of the refrigerant in the refrigerant pipe to drive the magnetic field in the power supply device. The rotation of the structure causes the windings in the power supply device to cut the magnetic field lines. The invention solves the problem of power failure of the main board of the internal unit when the multi-connected air conditioner unit is in use in the related art, and achieves the effects of enhancing the operation stability of the multi-connected air conditioner unit and improving the user experience.

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.

The invention discloses a rechargeable battery and a mobile terminal including the same. The rechargeable battery comprises a battery cell, three connecting fingers and a protective circuit board. The battery cell is a cuboid, the connecting fingers are arranged on the first surface of the cuboid, and the protective circuit board is arranged on the second surface of the cuboid. The connecting fingers and the protective circuit board are arranged on the different surfaces of the battery cell, so that the connecting fingers and the circuit board of the mobile terminal are in close electrical contact, and the protective circuit board is kept away from the circuit board of the mobile terminal, thus preventing the signal interference derived from the circuit board of the mobile terminal, and problems of automatic shutdown and power-down of the mobile terminal are solved, and the output voltage stability is improved.