200results about How to "Avoid power failure" patented technology

An apparatus and method for displaying battery capacity and a charge / discharge state of a portable device are provided. The apparatus includes a charge Integrated Circuit (IC) for providing current to recharge the battery using an external charge power source, a sensing resistance interposed between the battery and the charge IC, a switch connected to the sensing resistance in parallel and opened to flow the current to the sensing resistance when a capacity of the battery is measured, and a controller for determining the capacity of the battery using voltage values at both ends of the sensing resistance measured when the switch is opened.

The main objective of the present invention is a modular outdoor LED power supply disposed inside or outside of an outdoor LED light or an LED device so as to decrease the distance between the power supply and a LED light base for preventing an output power drop from an output of the power supply to the LED light base. One or more than one power supply can be disposed in a groove of a main heat-dissipating outer cover of the power supply according to the actual requirements, so that the production and installation thereof become more convenient. The power supply is characterized by being water-resistant, moisture-proof, dust-proof, antirust and direct heat-dissipating, wherein the water-resistant effect is above the IP 65 standard, and thus the reliability and the lifetime of the power supply are increased.

A catalyst layer for a fuel cell membrane electrode assembly includes a plurality of agglomerates, adjacent ones of the plurality of agglomerates contacting with each other with pores provided between said adjacent ones of the plurality of agglomerates, each of the plurality of agglomerates being formed by packing a plurality of catalysts each consisting of noble metal fine particles supported on a fiber-like support material, adjacent ones of the plurality of catalysts contacting with each other with pores provided between said adjacent ones of the plurality of catalysts, and each of the plurality of catalysts contacting with a plurality of catalysts other than said each catalyst at a plurality of contact points. This allows providing a catalyst layer, a fuel cell membrane electrode assembly, and a fuel cell, each of which has compact size and excellent power generation performance, and a method for producing the same.

The invention provides a flight control method based on battery monitor. The method is used for controlling the flight of an unmanned aerial vehicle. The method comprises the following steps: acquiring current remained power of the battery, current position and current height of an unmanned aerial vehicle according to the first set interval time; calculating the minimum electricity of flight according to the current position and the destination location of the unmanned aerial vehicle; calculating the minimum electricity of landing according to the current height of the unmanned aerial vehicle; calculating the first flight threshold electricity of the unmanned aerial vehicle according to the minimum electricity of flight and minimum electricity of landing; and comparing the first flight threshold electricity with the current remained electricity, and prompting a user to make a return voyage or land when the current remained electricity is less than or equal to the first flight threshold electricity. The invention further provides a battery monitor based flight control device. The device and the method can be used for well improving the flight efficiency of an unmanned aerial vehicle and avoiding occurrence of power down.

An apparatus and method for displaying battery capacity and a charge / discharge state of a portable device are provided. The apparatus includes a charge Integrated Circuit (IC) for providing current to recharge the battery using an external charge power source, a sensing resistance interposed between the battery and the charge IC, a switch connected to the sensing resistance in parallel and opened to flow the current to the sensing resistance when a capacity of the battery is measured, and a controller for determining the capacity of the battery using voltage values at both ends of the sensing resistance measured when the switch is opened.

The invention is applicable to the technical field of communication and provides a data backup method of mobile terminals. A mobile terminal comprises a communication module, a moisture detection device and a data backup device. The data backup method includes that the moisture detection device detects the moisture of the mobile terminal, and when the moisture of the mobile terminal reaches a set moisture threshold value, the data backup device backs up data of the mobile terminal. Correspondingly, the invention further provides the mobile terminal. Accordingly, when the mobile terminal is carelessly damaged by water or drops in water, the method is capable of automatically and timely backing up the data of the mobile terminal so that user information is prevented from being lost.

The invention discloses a direct current power supply input reverse irrigation prevention circuit and method. The circuit comprises a reverse connection prevention circuit, a soft start circuit and a sampling control circuit. The reverse connection prevention circuit comprises a reverse connection prevention metal oxide semiconductor field effect transistor MOSFET. The slow start circuit comprises a slow start MOSFET. The sampling control circuit samples voltage between the drain and the source of the slow start MOSFET. When the voltage between the drain and the source of the slow start MOSFET is less than the reference voltage, the reverse connection prevention MOSFET is controlled to switch off. According to the invention, current reverse irrigation is avoided when input short circuit occurs or input voltage rapidly drops; when a DC / DC converter uses a full bridge circuit, the increasing of the voltage stress of the secondary synchronous rectifier MOSFET drain and source of the converter and the damage of the MOSFET are avoided; when reverse lightning surge occurs in an input port, current reverse irrigation is avoided; and power supply output power-off caused by module input capacitor power-off is avoided.

The invention relates to the related technical field of power equipment, and particularly relates to a safe distance detection and early-warning device and method for power construction equipment. The safe distance detection and early-warning device comprises a sensor part and a main control equipment part, wherein the sensor part comprises a plurality of wireless distance measuring sensors arranged on a moving mechanism, the main control equipment part comprises a central processing module, a wireless data receiving module and a warning module, the wireless data receiving module is connected with the wireless distance measuring sensors, and the central processing module is respectively connected with the wireless data receiving module and an audible-visual warning module. According to the safe distance detection and early-warning device and method for power construction equipment, disclosed by the invention, the occurrence of power failures and human casualty accidents because the safe distance between the moving mechanism and an obstacle is insufficient or the moving mechanism and the obstacle collide in the process of construction in a high electric field environment of high-tension transmission lines is avoided.

The invention relates to a pulse starting device and a starting method for a discharge lamp, in particular a high-pressure discharge lamp for a motor vehicle headlamp. The starting device has a transformer which has either two primary windings which are connected in parallel and are both coupled inductively to the at least one secondary winding, or instead has a primary winding which consists of a wide metal strip and is wound, separated by an electric insulation, over the at least one secondary winding. The starting device according to the invention has a compact design which permits the complete starting device to be accommodated in the lamp cap.

The main objective of the present invention is a modular outdoor LED power supply disposed inside or outside of an outdoor LED light or an LED device so as to decrease the distance between the power supply and a LED light base for preventing an output power drop from an output of the power supply to the LED light base. One or more than one power supply can be disposed in a groove of a main heat-dissipating outer cover of the power supply according to the actual requirements, so that the production and installation thereof become more convenient. The power supply is characterized by being water-resistant, moisture-proof, dust-proof, antirust and direct heat-dissipating, wherein the water-resistant effect is above the IP 65 standard, and thus the reliability and the lifetime of the power supply are increased.

The invention discloses an over-discharge protection method for an over-discharge protection control system for a lithium ion storage battery, which is applied to a lunar probe power supply system. The over-discharge protection method comprises the following steps: a comprehensive electronic subsystem detects the voltage of a storage battery monomer, and switches a peak load off when discharge or fault of the storage battery monomer is detected; the comprehensive electronic subsystem continually detects the voltage of the storage battery monomer, judges whether the storage battery monomer is in a monomer over-discharge state or a monomer fault state, performs over-discharge protection on the storage battery monomer if the storage battery monomer is in the monomer over-discharge state, and clears the fault of the storage battery monomer if the storage battery monomer is in the monomer fault state; and during over-discharge protection for the storage battery monomer, a discharge switch is switched off, and an over-discharge protection circuit performs over-discharge protection on a hardware storage battery pack. The invention provides a storage battery monomer protection way and a storage battery pack protection way, a software control way is adopted during monomer over-discharge protection, a hardware control way is adopted during pack over-discharge protection, and two types of protection serve as backups for each other, so that the reliability and safety of a satellite power supply system are enhanced.

The invention discloses a universal server power supply protection mechanism. A PMbus of a power supply and an I2C bus of a BMC are connected; through the BMC, the state information of the power supply is acquired in real time; once power supply abnormal information is monitored, the BMC sends a command to enable a CPU to carry out frequency reduction so as to reduce the power supply load; and after the abnormal state disappears, the BMC enables the CPU to restore the normal running state. According to the universal server power supply protection mechanism, the power supply load can be lightened by a universal server when the power supply is abnormal, so that the safe operation of the power supply is ensured, the serious consequences such as power supply damage and server power down can be avoided, the stability of the server is improved and the market competitiveness in the like products is strengthened.

The invention discloses an uninterruptible power supply device which is used for conducting uninterruptible power supply on a site enforcement recorder. The uninterruptible power supply device comprises a main battery module, a standby battery module and a switchover module. The main battery module is connected with the power input end of the site enforcement recorder. The standby battery module is connected with the power input end of the site enforcement recorder through the switchover module. The main battery module comprises a replaceable main battery. The standby battery module comprises a standby battery. The switchover module comprises a detection port and a switch tube, wherein the detection port is used for being connected with an intermediate electrode of the main battery so as to detect whether the main battery is pulled out. When the main battery supplies power to the site enforcement recorder, a detection result of the detection port makes the switch tube in a cut-off state to prevent the standby battery from being connected with the power input end of the site enforcement recorder; when the main battery is pulled out, the detection result of the detection port enables the switch tube to be connected so that the standby battery can be connected with the power input end of the site enforcement recorder through the switch tube to supply power to the site enforcement recorder.

The invention provides a method and device for diagnosing a low-voltage power supply fault of a power battery system and an electric automobile, and relates to the technical field of low-voltage systems. The method comprises the following steps of: periodically obtaining a voltage on a low-voltage power supply wire of the power battery system, determining whether the low-voltage power supply of the power battery system has a fault or not according to the voltage; when the low-voltage power supply of the power battery system is determined to have a fault, warning information is sent to an instrument controller, and the high-voltage power off of the whole automobile is controlled according to the current working mode of the whole automobile of the electric automobile; and after the whole vehicle is powered off at the high voltage, if a whole vehicle high-voltage power-on request signal is received, the whole vehicle high-voltage power-on request signal is not responded before the low-voltage power supply of the power battery system is determined to be fault-free. According to the scheme, the real-time detection of the stability and reliability of the low-voltage power supply of the whole vehicle power battery system is achieved, and fault prevention, monitoring and diagnosis are facilitated.

The invention belongs to the field of environment protection, and particularly relates to a solar air conditioner. The solar air conditioner comprises a compressor, an indoor unit and an outdoor unit, wherein the compressor, the indoor unit and the outdoor unit are communicated through pipelines, and the indoor unit and the outdoor unit are respectively provided with two ports. The outdoor unit is communicated with the indoor unit through a first pipeline, and the solar air conditioner further comprises a solar heat collector, a first reversing valve and a second reversing valve. The first reversing valve is connected with an outlet of the compressor and an inlet of the solar heat collector, and the second reversing valve is connected with an inlet of the compressor. An outlet of the solar heat collector is connected with the second reversing valve through a second pipeline which is connected with the first reversing valve through a bypass pipeline, and the other port of the indoor unit and the other port of the outdoor unit are both connected with the second reversing valve. The two reversing valves are used for changing connection relationships among the compressor, the indoor unit, the outdoor unit and the solar heat collector, the solar heat collector is utilized for secondary processing on cold media so as to adjust the indoor temperature, operating period of the compressor is reduced, and electric energy consumption is reduced.

The invention discloses a panel feeding clamp, which comprises a base for external installation, a pincer seat with one end fixed on the base, a substrate fixed on the base, a compression bar with the middle hinged with the other end of the pincer seat and an external casing. The compression bar is provided with a pincer opening end and a non-pincer opening end, wherein the pincer opening end andthe pincer seat form a pincer opening, and the non-pincer opening end is controlled by a driving mechanism to achieve opening or closing of the pincer opening, the driving mechanism comprises a cylinder arranged on the pincer seat and a spring assembly arranged on the substrate, the cylinder is connected with the spring assembly, the casing is rotatably provided with a C-shaped crank arm, one endof the crank arm is hinged to a connection portion of the cylinder and the spring assembly, the other end of the crank arm is hinged to a connection plate capable of sliding along the surface of the pincer seat, and elasticity effects of the spring assembly drive the connection plate to move close to the compression bar to enable the pincer opening to clamp a panel through the crank arm. When thecylinder applies reverse force on the crank arm, the crank arm drives the connection plate to move far away from the compression bar to enable the pincer opening to open. The clamp force is stable and reliable, has no damage to the surface of the panel, and avoids influences of power-down, decompression or pressure oscillation.

The present invention discloses a sense amplifier control circuit which controls the sense amplifier. A sense amplifier control circuit comprises a voltage comparing unit outputting delay control signals having a value corresponding to each of divided voltages obtained by dividing a potential of a power supply voltage and a pull-up control signal generating unit outputting an overdrive control signal and a pull-up control signal by an active signal and changing an enable pulse width of the overdrive control signal in response to the delay control signals, whereby it is possible to reduce current consumption caused by unnecessary overdrive operation and prevent a potential drop of the power supply voltage and thus provide operational stability of the semiconductor memory device by providing the overdrive control signal of which the enable pulse width is controlled in response to the potential of the power supply voltage.

A directional coupler is provided on the output side of a power amplifier. An increase in reflected wave power from a load is detected through the directional coupler by an electric power detector (wave detector). Then, a detection signal of an electric power detector is provided to a power amplifier supply voltage control circuit. As a result, the supply voltage supplied to the power amplifier is reduced gradually. By virtue of this, the supply voltage provided to the power amplifier is gradually reduced when the power amplifier approaches a breakdown condition. This protects the power amplifier.

The invention discloses an electric energy metering electricity larceny prevention system and an electric energy metering electricity larceny prevention method. A voltage sampling circuit, a live wirecurrent sampling circuit and a zero line current sampling circuit are used to acquire voltage and current signals of a mains supply, and the signals are transmitted to an MCU; when the mains supply supplies power, the mains supply is directly used for supplying power to the MCU with the metering module function, and the MCU is used for monitoring the working state and the capacity of a rechargeable battery, when the power supply voltage at the input power supply side of the MCU is lost, a power supply switching circuit supplies power to the MCU by using the rechargeable battery, and when thepower of the rechargeable battery is completely consumed, the MCU is used for supplying power to the MCU with a standby battery, the MCU closes a built-in metering module and wakes up the built-in metering module every t seconds, if both the live line current and the zero line current are less than 0. 1A, the metering module continues to be closed, if one current is larger than 0. 1A, the apparentpower is calculated according to the current with the large sampling value, the metering function module is closed, the sampling frequency is high, and the sampling precision is high, so that the requirement of the 0.5-grade metering precision can be completely met.

Embodiments of the invention disclose a terminal power failure prevention method and a terminal. The method comprises the following steps of: obtaining a current value of the terminal and an output voltage value of a terminal battery in real time; and if the current value is not smaller than a preset current threshold value or the output voltage value is smaller than a preset voltage threshold value, adjusting a CPU running state of the terminal so as to control the terminal to enter an anti- power failure mode. According to the method disclosed by the embodiments of the invention, the current value of the terminal and the output voltage value of the terminal battery are obtained, the current value and the output voltage values are compared with the preset threshold values, and the CPU running state of the terminal is adjusted when the current value is smaller than the preset current threshold value or the output voltage value is smaller than the preset voltage threshold value, so as to control the terminal to enter the anti-power failure mode, so that the terminal is effectively prevented from power failure when the battery voltage is relatively low.

The invention relates to a remote water rate collection system, and specifically relates to a remote payment type smart water rate collection system for agricultural irrigation. The system mainly comprises a payment management platform server (1), a mobile phone (2), a smart terminal (3), a smart card (7) and a smart water meter (8); the mobile phone (2) and the smart terminal (3) are connected with the payment management platform server (1) through the Internet, the smart terminal (3) is provided with a liquid crystal display screen (4), a card reading inductor (5) and a keyboard (6), and the smart water meter (8) and an electromagnetic valve (9) are connected with the smart terminal (3); and a microprocessor (11) is arranged in the smart terminal (3) and connected with a remote communication module (10), the remote communication module (10) is connected with the payment management platform server (1), the microprocessor (11) is connected with a controller (12), and the controller (12) is connected with the electromagnetic valve (9).

The invention discloses an energy dissipation beam embedded with viscoelastic layers. The energy dissipation beam comprises a concrete beam and a damping device, wherein the damping device is embeddedin the concrete beam, the damping device comprises a main framework, the main framework comprises a base, the base is vertically provided with a supporting plate, the supporting plate is provided with a steel core, the two ends of the steel core are both provided with pressure bearing end plates, the pressure bearing end plates are connected with positioning sleeves, the positioning sleeves and the steel core are located on the same axis, an outer sleeve is arranged outside the steel core, the two ends of the outer sleeve are both equipped with positioning end plates, a viscoelastic energy consumption part is arranged between the steel core and the outer sleeve, the viscoelastic energy consumption part comprises at least two viscoelastic layers and at least one steel plate layer, and thesteel plate layer is arranged between the two viscoelastic layers. According to the energy dissipation beam embedded with viscoelastic layers, the damping device is embedded in the concrete beam, so that the energy dissipation beam is formed, and the concrete beam constrains the deformation outside the internal damping device surface, so that it is ensured that the stable deformation and energy consumption work of the damping device in the established axis direction is carried out.

The embodiment of the invention discloses a memory, which comprises a memory module, the memory module comprises a plurality of data blocks and at least one backup block, each data block comprises a plurality of low significant bit pages and a plurality of high significant bit pages, and each high significant bit page corresponds to one low significant bit page; and the control module is electrically connected with the storage module and is used for detecting that the writing command of the first low significant bit page corresponding to the first high significant bit page is different from the current writing command when the data of the current writing command is written into the first high significant bit page, and backing up the data of the first low significant bit page into the backup block. According to the memory provided by the embodiment of the invention, the problem of lsb page data loss caused by msb page power failure in the prior art is solved, the power failure is effectively prevented, the data of a user is protected, and the safety and stability of the memory are improved.

The invention discloses a double-mode hybrid vehicle and a five-parameter control method and device of a working mode of the vehicle. The method comprises the steps of obtaining the current vehicle speed of double-mode hybrid vehicle; according to the engine idle rotating speed, the tire size and the final ratio of the double-mode hybrid vehicle, obtaining the idle vehicle speed corresponding to the idle rotating speed; if the current vehicle speed is smaller than or equal to the idle vehicle speed, obtaining a first working mode distribution model; if the current vehicle speed is larger than the idle vehicle speed, obtaining a second working mode distribution model; obtaining current battery charge state and wheel required torque of a power battery of the double-mode hybrid vehicle; according to the current battery charge state, the wheel required torque and the first working mode distribution model or the second working mode distribution model, determining the working mode of the double-mode hybrid vehicle. The frequent jumping problem between the working modes is solved, the comprehensive performance of the double-mode hybrid vehicle is improved, the fuel economy is improved, and the user experience is improved.

The invention discloses a cellphone and a control method thereof. The cellphone comprises a main battery and a stand-by battery. The stand-by battery is used for supplying power for the cellphone when the main battery is removed, a magnetic device is arranged on the main battery, and a magnetic induction device is arranged on a circuit board of the cellphone. The control method includes detecting intensity of magnetic fields generated by the magnetic device by utilizing the magnetic induction device; outputting a first level signal when the intensity of the magnetic fields is lower than a preset threshold value; and responding the first level signal to control the cellphone to enter a sleep state. By the control method of the cellphone, removal of the main battery can be inducted automatically, the cellphone is controlled to enter the sleep state when the main battery is removed, so that sudden power-off or power-failure of the cellphone caused by fast consumption of the stand-by battery can be avoid effectively.

The invention discloses a security upgrading method for a BootRom. The method comprises the following steps of: starting a system, downloading a high-version BootRom mirror image and storing the BootRom mirror image into a memory; verifying the correctness of the downloaded mirror image; analyzing a primary address table to obtain standby area addresses; storing the mirror image and judging whether the mirror image is stored successfully or not; and updating the primary address table and a standby address table in turn. By the security upgrading method for the BootRom, the problem of a situation that Flash is back to a factory to be reprogrammed by using equipment because of an upgrading failure of the BootRom, so that the security upgrading method has the advantages that the system can be started normally, the data damaged by the upgrading failure can be modified and the like even if the upgrading fails.

A data processing apparatus is provided with a master device and a slave device which communicate via communication circuitry. The slave device is associated with a predetermined number of permission tokens that is equal to a maximum number of currently pending messages that can be accepted for processing from the communication circuitry by that slave device. The slave device transmits these permission tokens to the master device. The master device takes exclusive temporary possession of the permission tokens that it receives such that the permission tokens are then no longer available to any other master device. A master device initiates a message to a slave device when the master device has exclusive temporary possession of a permission token for that slave device. When the master device has initiated its message, then it relinquishes the exclusive temporary possession of the permission token such that it is then available for other devices.