47results about How to "Solve the problem of not starting normally" patented technology

A discrete frequency conversion start-up system of the alternating current impression electromotor and its start-up method. It includes mutual inductor, amplifier, crystal brake, processor, liquid crystal screen, chip machine and keyboard. The steps are as follows: program initialization, detect the initial follow current angle, set the trigger angle of the discrete frequency conversion frequency and make the minimal trigger angle larger than initial follow current angle; frequency division trigger subprogram, frequency division trigger subprogram, frequency division trigger subprogram, frequency division trigger subprogram, frequency division trigger subprogram and flexible start-up subprogram. The invention can make the three-phase alternating current induction motor start up normally when it is heavily loaded and fully loaded.

The invention relates to an anti-icing starter electromagnetic switch with spiral spring contacts. The anti-icing starter electromagnetic switch comprises a shell, an insulation seat, two fixed contacts, an annular support limitation seat, a moving contact rod, a moving contact piece, a reset spring, a sleeve, an electromagnetic coil and a moving iron core, wherein the two fixed contacts are arranged in the insulation seat, the annular support limitation seat is fixedly arranged above the insulation seat, the moving contact rod is arranged at the center of the annular support limitation seat in a penetrating way, the moving contact piece is arranged at the lower end of the moving contact rod, the reset spring is arranged between the lower end of the moving contact rod and the bottom surface of the insulation seat, the sleeve sleeves the periphery of the upper part of the annular support limitation seat, the electromagnetic coil is arranged outside the sleeve, the moving iron core is arranged in the sleeve and supported at the top of the annular support limitation seat, the anti-icing starter electromagnetic switch is characterized in that the peripheries of the two fixed contacts in the insulation seat respectively envelops a spiral spring, the upper end of the spiral spring is a free end, the lower end of the spiral spring is welded with the lower parts of the fixed contacts, the top of the spiral spring is higher than the top surfaces of the fixed contacts in a free state and lower than the lower surface of the moving contact piece in a non-working state, and the spiral spring is made of an alloy with electrical resistivity greater than those of the fixed contacts. The anti-icing starter electromagnetic switch is simple in structure and is reliable to use.

The invention relates to an anti-icing starter electromagnetic switch with dual-layer contactors. The anti-icing starter electromagnetic switch comprises a housing, an insulating base, two static contacts, an annular supporting limiting seat arranged above the insulating base, a movable contact rod penetrating through the center of the annular supporting limiting seat, movable contact pieces arranged at the lower end of movable contact rod, a reset spring arranged between the lower end of the movable contact rod and the insulating base, a sleeve sleeving on the annular supporting limiting seat, an electromagnetic coil arranged on the external of the sleeve, and a movable iron core; the anti-icing starter electromagnetic switch is characterized in that an auxiliary static contact is arranged over each of the two static contacts separately; the auxiliary static contacts and the sides, far from the movable contact rod, of the static contacts are connected through a stripped metal thin plate; the number of the movable contact pieces is two, and the two movable contact pieces comprise an upper movable contact piece and a lower movable contact piece; the position of the upper movable contact piece is higher than that of the auxiliary static contacts, and the two ends of the upper movable contact piece are corresponding to two auxiliary static contacts respectively; the lower movable contact piece is arranged between the static contact and the auxiliary static contact, and the two ends of the lower movable contact piece are corresponding to two static contacts respectively. The anti-icing starter electromagnetic switch is simple in structure and reliable in use.

The invention discloses a software upgrade verification method based on an Android system. The method comprises the steps that 1, an upgrade file extension area is packed in the last part of an upgrade file, the extension area contains firmware identification code, extension area verification information, and upgrade file full verification information; 2, the extension area verification information is verified, if the data is consistent, the next step is proceeded to check, and if the data is inconsistent, a normal boot is proceeded; 3, the firmware identification code is verified, if the data is consistent, the next step is proceeded to check, and if the data is inconsistent, the normal boot is proceeded; 4, the full verification information of the upgrade file is compared, if the comparison is right, the startup enters a normal upgrade process, if the data is inconsistent, guide for an upgrade boot is exited, and the normal boot is proceeded. According to the software upgrade verification method based on the Android system, the safety of an upgrade brush is greatly improved, the after-sale maintenance costs are reduced, and the after-sale software service efficiency is improved.

The embodiment of the invention provides a BIOS chip switching method and a baseboard management controller in order to quickly solve the problem that servers cannot be started due to BIOS chip failure. The method includes the steps that the baseboard management controller (BMC) receives an operation instruction, wherein the operation instruction is an instruction for starting a server, and the server includes a first BIOS chip and a second BIOS chip; the BMC monitors whether or not a first signal sent by the first BIOS chip is received within a first time period and a second signal sent by the first BIOS chip is received within a second time period, wherein the first time period is different from the second time period, and the second time period is the time period after the first time period; if the BMC does not receive the first signal within the first time period or the BMC does not receive the second signal within the second time period, the BMC switches the first BIOS chip into the second BIOS chip to restart the server.

The invention relates to an OLED display device and a control method thereof, and relates to the technical field of display. The display device comprises a switch unit which is electrically connectedwith a standby voltage end of a power panel and a standby voltage end of a main chip and is used for controlling connection and disconnection of the standby voltage end of the power panel and the standby voltage end of the main chip; a control unit, electrically connected with the switch unit, and used for responding to an alternating-current detection signal output by the power panel and a direct-current detection signal output by the main chip to control the switch-on and switch-off of the switch unit. The AC detection signal is used for detecting whether an AC power-off or AC power-on signal is received, and the DC detection signal is used for detecting whether a DC power-off or DC power-on signal is received. According to the invention, the standby voltage can be quickly cut off duringAC power failure, so that the display device can be normally started during AC power-on, and normal standby can be ensured during DC power failure.

The invention discloses a heat pump heat supply system for preparing constant-temperature hot water, and belongs to the technical field of energy application. The heat pump heat supply system is technically characterized in that a raw water tank is connected with a water mixer through a water supply pipeline, a pressure-fixed tank a is arranged on the water supply pipeline, the two sides of the pressure-fixed tank are provided with a temperature sensor a and an electric adjusting valve a respectively, the water mixer is connected with a water inlet end of a condenser of a heat pump system through a water inlet pipe, a water outlet end of the condenser is connected with a water outlet pipe and a water mixing pipe, the water outlet pipe is connected with a hot water tank, and the water mixing pipe is connected with the water mixer. The heat pump heat supply system has the advantages that constant-temperature water supply is realized with only one hot water storage tank, the power consumption of a heat pump unit can be reduced by about 7% under the same hot water supply temperature, the flow adjustment and control in the system are realized through a water supply pump, the pressure-fixed tank and the electric adjusting valve, the flow adjustment accuracy is ensured, and the water pump energy consumption in the flow adjustment process is greatly reduced.

The invention discloses a multi-mode redundancy and data maintenance system for a space computer guide area. A watchdog module is sequentially connected with the working mode switching module and theEEPROM programming control module through the cold and hot start mark module to form a multimode redundancy and data maintenance system of a guide area. The multimode redundancy and data maintenance system is connected with two completely independent EEPROMs through a control bus. A cold and hot start flag bit, a guide area chip selection signal and an address line of a space computer are used forcarrying out logic combination, two chip selection signals are generated through a decoder, the two chip selection signals generated by the decoder are connected with chip selections of two EEPROMs respectively, and gating of the EEPROMs and read-write operation are achieved. On-orbit reconfigurability and data maintenance of a space computer guide area are achieved, and on one hand, the problemthat a traditional computer can only conduct on-orbit maintenance in a limited RAM area and cannot reconstruct and maintain a guide area program is solved. And on the other hand, the problem of data loss of a traditional computer after maintenance after system power failure is solved.

The invention discloses a bistable switch. The switch comprises a shell, wherein a coil rack, two binding posts and a contact bridge are arranged in the shell, the coil rack is provided with a hollowsleeve and a coil winding, a static iron core and a movable iron core are arranged in the hollow sleeve, and a guide rod is fixedly connected between the contact bridge and the movable iron core; thecoil frame is provided with a steady-state assembly used for keeping the attraction or release state of the movable iron core and the static iron core. The steady-state assembly comprises a reset spring, a pressure spring used for abutting against the contact bridge, and a permanent magnet used for enhancing the electromagnetic attraction of the movable iron core. The switch is simple in structure, has dual stable states of stable conduction and stable disconnection, does not need continuous power supply of a coil, does not emit heat, guarantees dynamic balance between the internal temperatureof the switch and the external environment temperature, can be normally switched on and off especially in an extremely cold severe environment, and is high in reliability; the bistable switch solvesa problem that an automobile cannot be normally started in an extremely cold environment in the industry, and the service life of the switch is effectively prolonged.

The invention relates to the technical field of vehicle control, and discloses a vehicle control method, device and equipment based on a fuel pump and a storage medium. The method comprises the steps that a target atomization curve fitting equation is generated according to current temperature information and a preset fuel atomization curve; and corresponding target pressure information is obtained according to the target atomization curve fitting equation, the target pressure information is sent to an engine controller, so that the engine controller adjusts a current starting parameter according to a pressure value corresponding to the target pressure information, and starting of the target vehicle is controlled according to the adjusted current starting parameter. The current starting parameter is adjusted through the pressure value corresponding to the target pressure information, starting of the target vehicle is controlled based on the adjusted current starting parameter, so that control over the target vehicle based on the fuel pump is achieved, and compared with a control method of a conventional fuel pump in the prior art, the problem that a vehicle cannot be normally started under the low-temperature condition can be effectively solved.

The invention discloses a preheating system for low-temperature starting of a diesel generator. The preheating system for low-temperature starting of the diesel generator comprises the diesel generator and a fuel heater, and further comprises a cylindrical heat pipe. The cylindrical heat pipe is formed by surrounding an inner-layer cylindrical metal wall surface and an outer-layer cylindrical metal wall surface; a sealed cavity is arranged between the inner-layer cylindrical metal wall surface and the outer-layer cylindrical metal wall surface; a working medium is filled in the cavity; the inner-layer cylindrical metal wall surface is used as a condensing surface of the cylindrical heat pipe; the lower part of the outer-layer cylindrical metal wall surface is an evaporating surface of theheat pipe; the diesel generator is installed in the cylindrical heat pipe; and the fuel heater is arranged on the evaporating surface on the outer side of the cylindrical heat pipe, and provides heatfor a phase change of the working medium located in the cylindrical heat pipe. According to the preheating system for low-temperature starting of the diesel generator provided by the invention, high-efficient phase change and heat transfer of the working medium in the cylindrical heat pipe are fully utilized for applying heat produced by fuel combustion of the fuel heater to improving temperatureof a diesel generator body and a working space, so that the problem that the diesel generator of an electricity generation cabin of an Antarctic science investigation platform cannot be normally started at low temperature is solved.

The invention discloses an inverter starting method, an inverter starting device and an inverter starting system applicable to a photovoltaic power generation system. Under the condition of not adding any external load, high-voltage startup of an inverter can be completed by taking a bus capacitor of the inverter as a short-term load to clamp the bus voltage of the inverter within an allowable working voltage range of the inverter and quickly outputting energy of a photovoltaic array through the inverter. Therefore, the problem that an inverter cannot be started normally when the output voltage of a photovoltaic array is greater than the allowable working voltage of the inverter currently is solved, and high-voltage startup of an inverter is realized on the basis of not increasing the system cost.

The invention discloses a backlight driving circuit and a display device, comprising a voltage doubling module and an output buffer module, wherein, a voltage doubling module is used for amplifying the power supply voltage and outputting the amplified power supply voltage to an output buffer module. The output buffer module is used for regulating the received amplified power supply voltage. By adding an output buffer module in the backlight driving circuit, the voltage stabilization treatment of the amplified power supply voltage is realized, so that the backlight driving circuit can output the backlight stably, thus solving the problem that the instantaneous power is too large to enable the backlight to start normally.

The invention discloses a self-adaptive soft start charging circuit for an AC dimming LED drive power supply. The self-adaptive soft start charging circuit comprises a power supply circuit and a start circuit, wherein an adaptive soft start circuit is added to the start circuit and comprises two comparators, a logic AND gate and a timer; the adaptive soft start circuit detects Vdd, transmits the detected highest value and lowest value of a Vdd working voltage to input ends of the two comparators respectively; input of the two comparators generates a square wave pulse signal through the relationship of the logic AND gate; the square wave pulse signal is transmitted to the timer to generate a time parameter; and the time parameter increases the duty ratio of a PWM signal and controls the width of a single pulse. The self-adaptive soft start charging circuit solves the problem that an LED lamp cannot be normally started under the input of a dimmer, completely preserves over-current and short-circuit protection functions of a system, can accurately judge the short-circuit condition, and ensures the working safety and stability of the circuit, especially under the condition of high-brightness dimming and in the absence of the dimmer.

The invention provides a vehicle cold start control method and device, and belongs to the technical field of automobiles. The problem that in the prior art, an engine cannot be successfully started under the extremely cold condition is solved fundamentally. The vehicle cold start control method comprises the steps that when that the starting condition is met is determined, a PEPS controller sendsa starting request signal to an engine controller through a GW gateway, the engine controller controls a second relay KA2 to be attracted, the PEPS controller controls a first relay KA1 to be attracted, and a storage battery and a starter are connected through simultaneous attraction of the first relay KA1 and the second relay KA 2; when the communication stop fault of the PEPS controller and theGW gateway occurs, the engine controller continues to receive the signal within a preset time value I; and the PEPS controller continues to send the starting request signal to the engine controller after communication is recovered within a preset time value II, and the preset time value I is larger than the preset time value II. The invention further provides the vehicle cold start control device.According to the vehicle cold start control method and device, the success rate of vehicle cold start can be increased.

The invention discloses a starting method and device of a memory operating system for data acquisition, computer equipment and a computer readable storage medium. The method comprises the steps of receiving a starting request for starting the memory operating system; judging a preset starting mode of the basic input / output system; if the starting mode is a Legacy starting mode, acquiring a presetfirst boot file according to the Legacy starting mode, and loading a preset first kernel file according to the first boot file so as to run the memory operating system; and if the startup mode is a UEFI startup mode, acquiring a preset second boot file according to the UEFI startup mode, and loading a preset second kernel file according to the second boot file to run the memory operating system. The invention relates to a system performance optimization technology, and solves the problem that a memory operating system cannot be normally started due to a starting mode of a BIOS in a server in the process of starting the memory operating system.

The embodiment of the invention discloses a starting method and device for a security application program and an electronic device, and relates to the technical field of starting of the security application program, which can solve the problem that a main program of the security application program cannot normally start due to modification of entry point address content of the main program of the security application program in the prior art. The starting method includes: determining if a current created process is a process of the main program of the preset security application program or not; determining whether the entry point address content of the main program of the security application program is modified or not if the current created process is the process of the main program of the security application program; and allowing a service program of the security application program to start the main program of the security application program if the entry point address content of the main program of the security application program has been modified. The starting device and the electronic device include modules for implementing the steps of the method. The method is suitable for starting of the main program of the security application program.

The invention belongs to the technical field of inverters, and discloses a parallel control system and method based on two-way inverter control and an inverter. The parallel control system based on two-way inverter control includes a photovoltaic power supply module, a parallel voltage detection module, a parallel current detection module, a main control module, a start module, a parallel module,a heat dissipation module, a fault diagnosis module and a display module. Through the start module, the existing problem that a two-way inverter cannot be started normally when the output voltage of aphotovoltaic array is higher than the allowable working voltage of the two-way inverter is solved, and high-voltage start of the two-way inverter is realized without increasing the system cost. Because the fault diagnosis module does not carry out complex mathematical transformation, the algorithm complexity and time complexity of the diagnosis method are reduced, and the dependence on the hardware of the fault diagnosis system is reduced. According to the experimental data, the method can greatly reduce the problem of parallel fault diagnosis delay and improve the diagnosis efficiency.

The invention relates to an anti-icing starter electromagnetic switch with spiral spring contacts. The anti-icing starter electromagnetic switch comprises a shell, an insulation seat, two fixed contacts, an annular support limitation seat, a moving contact rod, a moving contact piece, a reset spring, a sleeve, an electromagnetic coil and a moving iron core, wherein the two fixed contacts are arranged in the insulation seat, the annular support limitation seat is fixedly arranged above the insulation seat, the moving contact rod is arranged at the center of the annular support limitation seat in a penetrating way, the moving contact piece is arranged at the lower end of the moving contact rod, the reset spring is arranged between the lower end of the moving contact rod and the bottom surface of the insulation seat, the sleeve sleeves the periphery of the upper part of the annular support limitation seat, the electromagnetic coil is arranged outside the sleeve, the moving iron core is arranged in the sleeve and supported at the top of the annular support limitation seat, the anti-icing starter electromagnetic switch is characterized in that the peripheries of the two fixed contacts in the insulation seat respectively envelops a spiral spring, the upper end of the spiral spring is a free end, the lower end of the spiral spring is welded with the lower parts of the fixed contacts, the top of the spiral spring is higher than the top surfaces of the fixed contacts in a free state and lower than the lower surface of the moving contact piece in a non-working state, and the spiral spring is made of an alloy with electrical resistivity greater than those of the fixed contacts. The anti-icing starter electromagnetic switch is simple in structure and is reliable to use.

The invention discloses a software image backup method based on a Tianmai operating system, and belongs to the technical field of avionics system software image backup. According to the method, based on the idea of data backup, the same software image is deployed in different FLASH storage areas at the same time, and MD5 check codes of the software storage areas are calculated and stored; when the software is started, the power-on bootstrap program recalculates the integrity of the data of the FLASH storage area of the MSL software image, and the MSL software image of the FLASH area with the complete data is selected to be started; after the MSL is started, the integrity of the data in the image storage area of the operating system and the application software is calculated, and the operating system and the application software in the complete area are selected to start. According to the method, the problem that the system cannot be started due to FLASH jump and system power failure in software upgrading can be effectively solved, and the reliability and the stability of the system are improved.

The invention relates to a distribution automation terminal core unit capable of achieving direct cool starting at -40 DEG C. The Distribution automation terminal core unit comprises a power module, a follow-up application circuit and a high-speed sampling module, and output of the power module is directly connected to the follow-up application circuit. The distribution automation terminal core unit is characterized in that output of the high-speed sampling module in a circuit is connected with a low-temperature starting module to be connected with the power module, direct current (DC) 48V is input, + / -12V and 5V are output through the power module, an output 5V port is connected with a voltage stabilizing circuit which is composed of an L2, an E4, a C10 and a C11, the capacitance C10 and the capacitance C11 are in parallel connection with the capacitor E4 to be in series connection with electrical inductor L2 to form the voltage stabilizing circuit, and power is provided for a DC conversion chip U2 by the voltage stabilizing circuit. According to the distribution automation terminal core unit capable of achieving direct cool starting at -40 DEG C, an industrial grade core unit with high low temperature resistance is used for processing the chip, and direct cool starting of the distribution automation terminal core unit in the -40 DEG C low temperature environment can be achieved.

Embodiments of the present invention provide a BIOS chip switching method and a baseboard management controller, which are used to quickly solve the problem that a server cannot be started due to a BIOS chip failure. The method includes: a baseboard management controller BMC receives an operation instruction, the operation instruction is a start instruction to a server, and the server includes a first BIOS chip and a second BIOS chip; the BMC monitors whether the operation instruction is received within a first time period The first signal sent by the first BIOS chip, and whether the second signal sent by the first BIOS chip is received within the second duration, the first duration and the second duration are different durations, and the The second duration is the duration after the first duration; if the BMC does not receive the first signal within the first duration, or the BMC does not receive the first signal within the second duration two signals, the BMC switches the first BIOS chip to the second BIOS chip to restart the service.

The invention discloses an inverter starting method, an inverter starting device and an inverter starting system applicable to a photovoltaic power generation system. Under the condition of not adding any external load, high-voltage startup of an inverter can be completed by taking a bus capacitor of the inverter as a short-term load to clamp the bus voltage of the inverter within an allowable working voltage range of the inverter and quickly outputting energy of a photovoltaic array through the inverter. Therefore, the problem that an inverter cannot be started normally when the output voltage of a photovoltaic array is greater than the allowable working voltage of the inverter currently is solved, and high-voltage startup of an inverter is realized on the basis of not increasing the system cost.