52results about How to "Guaranteed Secure Boot" patented technology

The invention provides a compressor starting method, device and terminal. The method comprises the steps that a compressor is controlled to be started at a first preset frequency, wherein the first preset frequency is smaller than a preset threshold value; parameters including the compressor exhaust gas temperature, the environment temperature, the compressor starting condensing pressure and the running internal machine ratio are obtained; according to the above parameters, the starting manners of the compressor are determined, wherein the starting manners comprise the cold starting manner, the normal starting manner and the quick starting manner; and the compressor is controlled according to the starting manners to rise the frequency until the compressor frequency reaches a target frequent. By means of the compressor starting method, device and terminal, the problem that in the prior art, the inverter compressor is started according to the inherent frequency in the starting process, and consequently the service life of the compressor is shortened is solved, safety starting of the compressor is guaranteed, and the system reliability is improved.

The present invention provides an operating system secure startup method, a startup manager and an operating system secure startup system. The method comprises: determining a software measurement policy, a hardware measurement standard value and a software measurement standard value, and determining a hardware measurement value in an operating system startup process; according to the software measurement policy, measuring software information related to operating system startup, and generating a software measurement value; and comparing the hardware measurement value and the software measurement value with the hardware measurement standard value and the software measurement standard value respectively, and if the hardware measurement value is consistent with the hardware measurement standard value and the software measurement value is consistent with the software measurement standard value, determining the operating system to be secure and starting up the operating system, otherwise, disabling the startup of the operating system, thereby ensuring secure startup of the operating system.

The embodiment of the invention provides a server safety starting method and device based on a BMC, and the method comprises the steps: starting a BMC management system and a trusted cryptography module, calling the trusted cryptography module to measure a CPLD and a BIOS module based on the BMC management system, and obtaining the measurement results of the CPLD and the BIOS module; if it is known that the CPLD and the BIOS module are not maliciously damaged according to the measurement results of the CPLD and the BIOS module, controlling the CPLD to power on the BIOS module; carrying out state detection on host hardware of the server based on the BIOS module; and if the state detection is passed, calling a trusted cryptography module to measure the startup code of the host operating system of the server to obtain a measurement result of the startup code, and if the startup code is known not to be modified according to the measurement result of the startup code, starting the host operating system. According to the embodiment of the invention, no extra load needs to be added, and safe starting of the server is realized.

The invention discloses a start control method and device of an air conditioner, a storage medium and the air conditioner. The method comprises the steps of acquiring the current temperature change information of the weather in the environment where the air conditioner is located in, and the current start parameters of the air conditioner; and having control over the control parameters of the airconditioner according to the current temperature change information and the current start parameters of the air conditioner. According to the schemes of the start control method and device of the airconditioner, the storage medium and the air conditioner, the problem that the starting reliability is poor because in the prior art, on different temperature rise or different temperature lowering conditions or different load conditions, a compressor might be damaged when the compressor is started up with liquid, or the effect of an air conditioner is affected is solved, and the effect of improving the starting reliability is achieved.

The invention provides a computer operating system starting method. The computer operating system starting method includes that: a computer is powered; a request is sent to a hard disk to read an MBR (master boot record) bootstrap program via control hardware by a BIOS (basic input/output system); the MBR bootstrap problem is captured from the hard disk by the control hardware, and a scheduled control program is transmitted to a computer mainboard; the scheduled control program is executed by the computer mainboard, identity of a user of the computer is authenticated, and an authentication pass instruction is sent to the control hardware by the computer mainboard when the user passes the identity authentication; the MBR bootstrap program captured from the hard disk is sent to the computer when the control hardware receives the authentication pass instruction; the MBR bootstrap problem is read by the computer mainboard, and an operating system on the hard disk is booted to start. Since the control hardware is not related to the specific computer mainboard and the operating system, customization of a special mainboard is not required, good compatibility is provided, starting of a slave disk is controlled effectively, and safe starting of the computer operating system is guaranteed.

The invention discloses a method and a device for boot startup of a processor operating system, and a processor system. The method comprises: executing first processor firmware codes, in the process of executing the first processor firmware codes, verifying integrity of the first processor firmware codes using first processor firmware verification data; after verification of the integrity of the first processor firmware codes is passed, performing boot startup on a first processor; using the first processor to capture second processor firmware codes, verifying integrity of the second processorfirmware codes, after verification of the integrity of the second processor firmware codes is passed, triggering an operating system of the second processor to start up. The method and the device canimprove safety and credibility of boot startup of the processor operating system.

The invention provides a pre-charging control method and device. The method is used for a battery management system, and comprises the steps: obtaining operation information of a battery management system and a battery system; judging whether the operation information meets a preset pre-charging permission condition or not; if so, issuing a notification used for representing permission of pre-charging to the battery system, and obtaining a pre-charging current and a load voltage of the battery system in a pre-charging process of the battery system based on the notification; judging whether thepre-charging current is equal to a preset pre-charging current threshold value or not and whether the load voltage is equal to a preset load voltage threshold value or not; and if the pre-charging current is equal to the preset pre-charging current threshold and the load voltage is equal to the preset load voltage threshold, controlling the pre-charging progress of the battery system according tothe preset pre-charging duration. On the basis of the method, high-voltage hidden danger can be eliminated on the premise of guaranteeing the pre-charging time, and safe starting of the electric automobile is guaranteed.

The invention discloses a soft switch single-phase inverter starting method. A clamping capacitor of a soft switch inverter is connected in parallel with an auxiliary starting circuit. First-time charging is carried out on the clamping capacitor through the auxiliary starting circuit. After first-time charging, the voltage of the clamping capacitor is smaller than a nominal voltage value. Then, an auxiliary staring impulse sequence for charging the clamping capacitor is applied to the inverter, the inverter is driven, the inverter is subjected to a soft switch process, second-time charging is carried out on the clamping capacitor in the inverter, the clamping capacitor is charged to have a nominal voltage value, and then an inverter control time sequence is converted into soft switch inverter PWM modulation driving signals. According to the method, soft switch operation is achieved at the starting stage of the soft switch single-phase inverter, the voltage stress of an inverter power device during a starting process is greatly lowered, and starting can be carried out safely and reliably under high direct-current bus voltage.

The invention discloses a lithium battery pack, which is used for supplying power for a controlled device, and comprises a lithium battery, a battery management system, a detection switch and a delaystart circuit. The detection switch is arranged in a charge and discharge interface of the lithium battery. The delay start circuit comprises a first switch, a second switch, a delay resistor and a start control unit. The delay resistor is a negative temperature coefficient resistor; the first switch is connected in series with the delay resistor to form a whole body, and the formed whole body isconnected in parallel with the second switch to form a start unit; the start unit is connected in series between the controlled device and the lithium battery; the start control unit is electrically connected with the first switch and the second switch; the start control unit receives the detection signal of the detection switch and outputs a control signal; and the first switch and the second switch are connected or disconnected according to the control signal. According to the lithium battery pack, the detection switch detects the working state of the lithium battery automatically, and the delay start circuit adjusts the start time of the controlled device according to the detection signal fed back by the detection switch, thereby ensuring safe start of the controlled device through start delay.

The embodiment of the invention discloses a system secure starting method and device, a set top box and a storage medium. The method comprises the steps that program area data is loaded according to astarting instruction, and whether the program area data comprises abnormal data is detected; if the abnormal data exists, band information of the abnormal data is determined; target verification datamatched with the band information is determined from multiple pieces of verification data cyclically played in a broadcast network, wherein the verification data is pre-determined according to standard program area data; and the abnormal data is recovered according to the target verification data, and the program area data obtained after recovery is loaded. The embodiment guarantees secure starting of a system, meanwhile, the verification data is played in the broadcast network, a small storage space is occupied, and consumption of the storage space is avoided.

The invention provides a bypass starting system and starting method of a combined cycle extraction condensing and back pressure unit. The bypass starting system mainly comprises an extraction condensing type steam turbine unit, a back pressure type steam turbine unit and a steam condenser. The waste heat boiler capacity of the extraction condensing type steam turbine unit is the same as that of the back pressure type steam turbine unit. The extraction condensing type steam turbine unit is provided with the steam condenser with 100% waste heat boiler steam quantity. When the extraction condensing type steam turbine unit is under the maximum steam extraction condition, the steam condenser can contain the steam quantity generated during starting of the back pressure type steam turbine unit. The extraction condensing type steam turbine unit is provided with three bypasses including the extraction condensing machine 100% gas turbine load high-pressure bypass, the extraction condensing machine 100% gas turbine load medium-pressure bypass and the extraction condensing machine 100% gas turbine load low-pressure bypass. The back pressure type steam turbine unit is provided with a back pressure turbine 10% gas turbine load high-pressure bypass, a back pressure turbine 10% gas turbine load medium-pressure bypass, a back pressure turbine 15% gas turbine load medium-pressure bypass, and a back pressure turbine 100% gas turbine load low-pressure bypass.

The invention discloses a centrifugal water chilling unit and a power failure rapid starting method. The centrifugal water chilling unit is characterized in that a compressor rapid unloading device comprises a four-way valve and rapid unloading valves; specifically, one rapid unloading valve is arranged outside the four-way valve to communicate with a high-pressure oil outlet of the four-way valve and a high-pressure oil cavity of a piston cavity, and a runner where the rapid unloading valve is located and an inflow runner in the four-way valve simultaneously constitute a high-pressure oil inlet channel; the other rapid unloading valve is arranged outside the four-way valve to communicate with a low-pressure oil cavity of the piston cavity and an oil tank, and the low-pressure cavity in the piston cavity simultaneously communicates with the oil tank through the other rapid unloading valve and a backflow runner in the four-way valve; and an adjustable guide vane is arranged at an inlet of a compressor and controlled to be opened and closed through the four-way valve. Rapid starting can be achieved under the condition that a main power source is abnormally disconnected and is recovered for a short time.

The invention provides a presser foot safety switch of a sewing machine, belongs to the technical field of sewing equipment, and solves the technical problems of mistaken induction of presser foot safety switches of existing sewing machines and the like. The sewing machine comprises a presser foot assembly, wherein the presser foot assembly is connected with a presser foot arm capable of driving the presser foot assembly to move; the presser foot safety switch comprises a presser foot cam and a trigger switch, a presser foot wrench capable of driving the presser foot cam to rotate is arranged on a casing of the sewing machine, the presser foot cam can drive the presser foot arm to move, and the presser foot cam has a bulge capable of triggering the trigger switch. The presser foot cam rotates to drive the presser foot arm to move upwards, the presser foot assembly can be lifted, and the bulge on the presser foot cam rotates to be opposite to the trigger switch and then squeezes and triggers the trigger switch of the sewing machine for safe starting, so that a presser foot can be started safely while the presser foot cam rotates to enable the presser foot assembly to rise.

The invention provides a startup control method and electronic equipment. The startup control method is applied to the electronic equipment which comprises a biological characteristic recognition module. The method comprises the following steps: under the first state of the electronic equipment, generating a first electric potential according to a specific operation, wherein all power modules of the electronic equipment are under a non-power-supply state under the first state; through the first electric potential, starting a first power submodule in the power modules to bring convenience for supplying power to the biological characteristic recognition module so as to start the biological characteristic recognition module to operate; and when the biological characteristic recognition module recognizes that the user is an authorized user, starting a second power submodule in the power modules to bring convenience for supplying power to the electronic equipment so as to start the electronic equipment.

The invention discloses a fault removal method and system in a power-on process and a computer readable storage medium. The fault removal method in a power-on process comprises successively powering on components based on a power-on timing sequence requirement of a CPLD in an automatic driving system; if at least one of the components has a fault, instructing the CPLD and an R-CAR H3 processor toreset the faulted component; and successively powering on the components based on the automatic driving system. The CPLD accurately controls the power-on timing sequence of each component in the automatic driving system to ensure the safe start of the automatic driving system. When the components of the automatic driving system have faults in a power-on process, the CPLD and R-CAR H3 processor execute a reset operation. When the CPLD cannot execute the reset operation, the reset operation is executed by the reset function of the R-CAR H3 processor to ensure the normal operation of the automatic driving system is resumed in a short time.

The invention provides a starting method of non-starting steam after tripping of a power generating set of a thermal power plant. The starting method comprises the following steps that after the powergenerating set is tripped, a boiler starts to quickly purge; a low-pressure bypass electric door on an inlet pipeline of a steam exhaust device is closed, and a high-pressure bypass electric door connected to a pipeline between a boiler superheater outlet and a boiler reheater inlet is opened, so that a reheating cold section is connected to a steam turbine shaft seal steam source, the normal steam supply of the shaft seal is maintained to be not interrupted, and the steam turbine is prevented from entering the cold steam cold water; the situation that the generating set trips due to the factthat a boiler main device is damaged is confirmed, a plurality of oil guns are put into for heating and boosting; when all the oil guns are normally combusted, a coal mill is started for heating andboosting; when a starting parameter of the generating set meets the condition that a preset extreme-heat-state punching parameter is met, steam turbine punching is carried out immediately; and grid connection with loads is carried out. According to the method, the steam-free starting under the thermal condition of the power plant can be realized without establishing a starting boiler and without being connected to the peripheral power plants.

The invention relates to the technical field of vehicle control, and particularly relates to a vehicle control method and device, a vehicle and a storage medium. The method comprises the steps: obtaining rotating speed change information of a rotating speed regulation part in preset starting duration; based on the rotating speed change information, judging whether a vehicle starting condition is met currently or not; and if so, making a vehicle start. By the adoption of the scheme, safe starting of the vehicle can be guaranteed.

The invention relates to a two-stage clocked electronic energy converter (20) for converting an electric power, comprising a first connection (38, 40) for connecting an electrical energy source, a second connection (42, 44) for connecting a consumer (46) and a DC link capacitor (28), wherein a first stage (1) of the two-stage clocked electronic energy converter (20) has a first converter in the boost operating mode which converts an electric voltage at the first connection (38, 40) into an electric DC link voltage at the DC link capacitor (28), and wherein the DC link capacitor (28) supplies a second stage (2) of the two-stage clocked electronic energy converter (20), said second stage supplying electrical energy to the consumer (46) in power-controllable fashion. In accordance with the invention, the energy converter has a control unit which is designed to set the power drawn from the DC link capacitor (28) by the second stage (2) such that an instantaneous minimum of the DC link voltage, which instantaneous minimum is effected by the power consumption, is greater than a preset voltage comparison value (50, 54).

The invention provides a boot-up method of a multi-partition system. The multi-partition system comprises a guide partition and a plurality of application partitions, wherein the first application partition is provided with a reference verification data area, and e other application partitions are provided with a data area to be verified. The method comprises the following steps: when a boot program is started, reading the reference verification data area of the first application partition; verifying the application partition, and if there is an application partition that fails the verification, stopping starting the bootstrap program; if all the application partitions pass the check, starting the application stored in the first application partition. The invention also provides a multi-partition system. The invention provides a boot-up method of a multi-partition system and a multi-partition system. When a bootstrap program is started, the application partition is checked according tothe data in a datum check data area and the data in a corresponding data area to be checked. If there is an application partition that fails the check, the bootstrap program stops startup to ensure the safe startup of the multi-partition system.

The invention provides a terminal device and a starting method thereof. The method includes the following steps that a first safe code is operated, and basic safety contents are verified; when the basic safety contents pass the verification, a second safe code is operated, and a guiding program is verified; when the guiding program passes the verification, the guiding program is operated; the basic safety contents and the guiding program are stored in a nonvolatile first memory, and the first safe code and the second safe code are stored in a read-only second memory. By means of the terminal device and the method, the starting safety of an intelligent terminal can be improved, and the reliability of code verification is relatively high.

The invention discloses an automatic vamp pressure maintaining device which comprises a bottom plate, a PLC control device, a vamp limiting unit installed on the bottom plate and a gland fastening unit, wherein the vamp limiting unit and the bottom plate are installed in parallel and used for limiting a vamp, a flip cover pressure maintaining unit comprises a flip cover control device, a gland and an air bag, the air bag is communicated with an air source, the lower end of the gland is rotatably mounted on a bearing plate and is driven by the flip cover control device to control the rotation condition of the gland, the flip cover control device is mounted on the bottom plate, the gland rotates downwards to be buckled on the upper surfaces of the vamp limiting unit and the gland fastening unit, the air source inflates the air bag to enable the air bag to expand to wrap the vamp so as to form a closed pressure maintaining interval, the gland fastening unit can press or be separated from the upper surface of the gland after rotating by a certain angle, and the PLC control device is used for controlling the flip cover pressure maintaining unit and the gland fastening unit to work. The device has the advantages of automatic vamp pressure maintaining, accurate working process control, high vamp pressure maintaining efficiency, high vamp pressure maintaining quality and the like.