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40results about How to "Avoid unsafe situations" patented technology
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Saw infeed system
InactiveUS20070039664A1Ergonomically effectiveReduce labor costsAutomatic control devicesPrecision positioning equipmentEngineeringMechanical engineering
An apparatus and method for a single operator to load and control the automatic infeeding of workpieces to a saw including the loading of a first workpiece from a nearby supply and placing it onto a moveable structure that that is raised to form a ramp and lowered to release the workpiece. The workpiece moves down the ramp and stops against a stop member located on the top surface of the moveable structure positioned above a first conveyor. The operator controls the lowering of the ramp structure thereupon releasing the workpiece to the first conveyor moving the workpiece transversely past a scanner, which discerns dimensional characteristics of the workpiece. A second conveyor feeds the workpiece into the saw.
Owner:JAMES L TAYLOR MFG
Interlock control system of van-type vehicle
InactiveCN101323259ALow input costReduce manufacturing costTractorsPropulsion unit safety devicesControl systemEngineering
The invention discloses an interlock control system in a van. The interlock control system comprises a detection device for the state of a van door, an interlock control device and an engine starter; wherein, when the circuit of the detection device for the state of the van door is closed, the interlock control device can cut off the circuit connection of the engine starter so that the engine starter cannot be started when the van door is in a state of open or is opened. Another interlock control system comprises an engine control device, a power supply device, a van door control device and a van door starter; wherein, the power supply device is provided with a first power supply providing power for a front van and a second power supply providing power for opening or closing the van door; when the engine is in running state, the power supply device cuts off the circuit connection between the second power supply and the van door control device; when the engine is stopped, the power supply device cuts off the circuit connection between the first power supply and the second power supply, thus realizing that the van door cannot be opened when the engine is in running state so as to avoid the occurrence of unsafe situation.
Owner:上海市长途汽车运输有限公司
Method for detecting cell state-of-charge and state-of-discharge divergence of a series string of batteries or capacitors
ActiveUS8581547B2Prolong lifeAvoid dischargeCircuit monitoring/indicationDifferent batteries chargingBattery state of chargeLithium
A system for charging a battery includes a battery pack having at least two lithium ion cells. A controller detects a rate of change of voltage with respect to a state of charge (dV / dSOC) of the battery pack based on a calculated dV / dSOC that represents the battery pack as a whole, without calculating dV / dSOC individually on a cell-by-cell basis. Charging is terminated when dV / dSOC reaches a predetermined value.
Owner:LG ENERGY SOLUTION VERTECH INC
Data transmission mode of P2P communication introducing identity verification anti-counterfeiting and non-peer-to-peer encryption
The invention discloses a data transmission mode of P2P communication introducing identity verification anti-counterfeiting and non-peer-to-peer encryption. The method comprises the steps of introducing a register center ETCD for register, starting all nodes and registering at the register center ETCD; all the nodes obtaining service information of a node at the opposite side through the registercenter ETCD; performing communication connection between the successfully registered nodes; each time after identity authentication is passed or a communication connection is built between the nodes,firstly, performing temporary key generation of own nodes, then, exchanging and saving the temporary keys via both sides of the communicating nodes, and respectively using the temporary keys as encryption keys to encrypt a communication content; encrypting the communication content by using the temporary keys of the opposite side, which establishes communication saving; the node of the opposite side decrypting the communication content encrypted through own generated temporary key after receiving the encrypted communication content; and reading the communication content. Through the scheme, the data transmission mode of P2P communication introducing identity verification anti-counterfeiting and non-peer-to-peer encryption in the invention achieves the purpose of safety transmission and hasrelatively high practical value and promotional value.
Owner:陕西医链区块链集团有限公司
Key generation method and device, computer device and storage medium
ActiveCN109951275AAvoid data insecurityReducing Correlation and PrimitivenessKey distribution for secure communicationEncryption apparatus with shift registers/memoriesLogical block addressingKey generation
The invention relates to a key generation method and device, a computer device and a storage medium. The method comprises the steps of obtaining an ID of a logic block address; obtaining a product serial number and a key length of the solid state disk; And performing key derivation processing by using the ID of the logic block address, the product serial number and the length to obtain a key. According to the invention, the serial number of the product is identified. Through performing key derivation processing on the set key length and the ID of the logical block address in the meta-information header, processing is carried out by adopting a splicing algorithm and a national cryptography SM3 algorithm. Key table does not need to be manually filled in. According to the method, the used AESsecret keys are determined according to the ID of the logical block addresses, the product serial number and the set secret key length are combined, it can be avoided that a plurality of logical block addresses use one set of secret keys, the data insecurity situation caused by cracking of secret key table information is avoided, and the correlation and the primitiveness between all sets of AES secret keys can be reduced.
Owner:RAMAXEL TECH SHENZHEN
Solar-assisted environment-friendly man-powered passenger car
InactiveCN105172984AFlexible drive modeDrive mode saves effortVehicle transmissionRider propulsionVehicle frameControl system
The invention relates to a solar-assisted environment-friendly man-powered passenger car comprising a bicycle frame, a front wheel, rear wheels, steering handlebars, a rear axle and a driving device, wherein the front wheel, the rear wheels, the steering handlebars, the rear axle and the driving device are arranged on the bicycle frame; the driving device is used for driving the rear axle; the rear axle is connected with a gear shifting differential for driving a semiaxis of the rear axle to rotate, and the driving device comprises a foot-operated driving device arranged on the bicycle frame and an electric driving device; the foot-operated driving device is connected to the gear shifting differential through a driving chain wheel; and the electric driving device comprises a speed-reducing motor and an energy storage converter connected with the speed-reducing motor, wherein the speed-reducing motor is connected to the gear shifting differential, the electric driving device is also connected with a control system, and the control system comprises a controller for controlling the output of the motor and a manpower sensor connected with the controller. The passenger car is diversified in power, high in flexibility and high in stability and safety, and a user can realize easy foot-operated driving operation.
Owner:张树金
Novel knife saw shield
InactiveCN104084834AWon't scatterAvoid unsafe situationsMaintainance and safety accessoriesDrive motor
The invention relates to a novel knife saw shield which comprises a shield body. A drive motor is arranged on the shield body, and the drive motor drives cutters partially covered by the shield body. The novel knife saw shield further comprises a crumb drawing pipe, one end of the crumb drawing pipe is communicated with the shield body, and the other end of the crumb drawing pipe is communicated with an exhaust fan. A crumb collection box is connected to the crumb drawing pipe arranged between the shield body and the exhaust fan through a crumb discharge pipe. The novel knife saw shield can automatically recycle crumbs generated in the cutting process.
Owner:赵秋燕
Electric-magnetic door lock control device
ActiveCN107675955AEasy to controlImplement security controlsNon-mechanical controlsElectricityControl signal
The invention discloses an electric-magnetic door lock control device which comprises a laser control circuit, a laser and a controller. The controller is connected with the laser control circuit, thelaser and an electric-magnetic door lock; and the laser control circuit is connected with the laser. After the laser control circuit controls the laser to power on, the laser control circuit sends alaser power-on state signal to the controller; when the electric-magnetic door lock detects that a door is in a close state, the electric-magnetic door lock sends a close state signal to the controller; and after the controller receives the laser power-on state signal and the close state signal, the controller sends a laser starting signal to the laser so as to control the laser to emit laser light, and outputs a control signal to control the electric-magnetic door lock to enter a locking state. The controller controls the laser to emit the laser light and controls the electric-magnetic door lock to enter the locking state only if the controller receives the laser power-on state signal and the close state signal, so that the laser is safely controlled, other people are prevented from beinginjured accidently, and the electric-magnetic door lock is accurately controlled.
Owner:SHENZHEN JPT OPTO ELECTRONICS CO LTD
Method for invalidating original access token during same-account multi-terminal login based on OAuth protocol
PendingCN112685718AValid access tokenAvoid unsafe situationsDigital data information retrievalDigital data authenticationProtocol for Carrying Authentication for Network AccessEngineering
The invention provides a method for invalidating an original access token during multi-terminal login of the same account based on an OAuth protocol, which comprises the following steps of: an access token generation step of marking the existing access token as remote login and generating a new access token when a user logs in through a user name and a password; and an access token verification step of judging whether the access token carried by the client is legal and valid or not when the client carries the access token to request the resource service, and preventing the client from accessing the resource when the access token is invalid. According to the invention, when a user uses a platform system based on an OAuth protocol, the user can be effectively prevented from being logged in by another terminal without logging out of the system and being unsafe to use by others, and the same user can be ensured to have only one effective access token at the same time.
Owner:卡瓦科尔牙科医疗器械(苏州)有限公司
Intelligent flying object target system
The invention discloses an intelligent flying object target system.The intelligent flying object target system is composed of a throwing object (1), a target (2), an object sensing unit (3) and a processing unit (4).The throwing object (1) is an object in a certain shape and with certain weight; the target (2) is a thin plate with the hook surfaces or the flat surfaces, the surfaces are in polygonal shapes, arc shapes, circular shapes or the combination of polygonal shapes, arc shapes and circle shapes, the hook face or the flat face, facing a throwing person, of the thin plate serves as the thrown target face, and the other hook face or the other flat face serves as the back face; the object sensing unit (3) is a sensing part capable of detecting closing or contacting of the throwing object (1); the processing unit (4) can receive electric signals and process the electric signals; the object sensing unit (3) is placed on the thrown target face side of the target (2) and electrically connected with the processing unit (4); when the throwing object (1) is thrown to get close to or make contact with the object sensing unit (3), the object sensing unit (3) generates the electric signals and sends the electric signals to the processing unit (4); in this way, and the processing unit (4) can detect arrival of the throwing object (1) and display information so that the reminding effect can be achieved, and the entertaining effect and the like can be achieved.
Owner:HARBIN RUOBOTS ROBOT CO LTD
Kitchen refuse treater
InactiveCN1618715AImproved opening and closing operabilityEasy to useSolid waste disposalRefuse receptaclesLitterEngineering
An object of the present invention is to provide a kitchen waste disposer in which the opening and closing operability of a cover is improved and is easy to use. The kitchen garbage disposer of the present invention is provided with: a treatment bucket (1) for feeding kitchen garbage; a machine cover (31) covering the treatment bucket; and a main body (33) in which the treatment bucket is arranged. In addition, it is also provided with: a closing device (15) for closing between the cover and the main body; for releasing the connection between the cover and the main body realized by the closing device A device (16) for releasing the closed state; and when the closed state between the cover and the main body realized by the closing device is released, automatically opening the cover from the main body The opening device (11). In this way, by manipulating the release device, the cover can be automatically opened, thereby improving the opening and closing operation performance of the cover.
Owner:PANASONIC CORP
Method, device and system for logging in website in public network
InactiveCN105933902AAvoid unsafe situationsNo increase in communication costsTransmissionSecurity arrangementLocal area networkPassword
The invention discloses a method, device and system for logging in a website in a public network. The method for logging in the website in the public network comprises following steps that a mobile terminal device accesses the website in a first network, wherein the first network is a wireless local area network; a login request is produced in a website login device; the login request is transmitted to a website server for first verification by a communication operator through utilization of a second network; verification information is produced by the website server after the first verification is passed; the verification information is transmitted to the mobile terminal device by the second network; the mobile terminal device receives the verification information and transmits the verification information to the website server by the first network; and the website server receives the verification information transmitted by the first network and compares the verification information with the verification information previously sent by the website server. According to the method, the device and the system, a special communication line is only used for transmitting information with relatively low amount of information, such as a password; and the excessive communication cost will not be increased.
Owner:刘兴丹
Nurse station management machine with intelligent control
PendingCN114006921AAvoid unsafe situationsImprove securityParticular environment based servicesDigital data authenticationPatient roomData information
The invention provides a nurse station management machine with intelligent control, and belongs to the technical field of nurse station management machines, and the nurse station management machine comprises a bottom plate, a box body assembly, a display assembly and an unlocking assembly; according to the invention, through the arrangement of the intelligent control assembly and the unlocking assembly, the virtual electronic lock is used for virtually locking the display assembly, the security password module is used for locking the display assembly in a password manner, and an operator can unlock the virtual electronic lock and the security password module by conveying digital passwords and fingerprints, unsafe conditions caused by misoperation of irrelevant personnel are avoided; through the arrangement of the intelligent control assembly and the display assembly, the data acquisition module acquires data information of each sickbed, the data information comprises patient information, temperature and humidity in a ward, air conditioner operation data, patient calling information and the like, and the display screen adopts an independent split screen to display a single sickbed, the display information of the display screen is patient information, temperature and humidity in a ward, air conditioner operation data and the like, so that an operator can conveniently know specific information of patients in each sickbed in real time.
Owner:厦门狄耐克物联智慧科技有限公司
Multifunctional food mixer
The invention relates to the technical field of mixers, particularly to a multifunctional food mixer which comprises a machine seat, a machine head mounted on the machine seat, and a plurality of processing assemblies which can be connected to the machine head in a transmission manner and used for treating food, wherein a rotary connection seat consisting of an L-shaped clamping slot is arranged on the machine seat; a rotary connection head consisting of an L-shaped clamping slot is arranged on the machine head; after the rotary connection head is put into the rotary connection seat, the rotary connection head and the rotary connection seat rotate by a preset angle relatively, so that the machine head can be conveniently connected to the machine seat for locking; after the rotary connection head and the rotary connection seat rotate by the preset angle relatively in the opposite directions, the machine head is pulled out of the machine seat, and can be conveniently unlocked and separated from the machine seat. The multifunctional food mixer has the function of processing various food, and further has the advantages of long service life and higher safety.
Owner:GUANGDONG XINBAO ELECTRICAL APPLIANCES HLDG CO LTD
Double-tractor safety elevator used outside old residential building
InactiveCN110077930AImprove safety performanceImprove buffering effectElevatorsBuilding liftsTractorElectric signal
The invention provides a double-tractor safety elevator used outside an old residential building. The double-tractor safety elevator used outside the old residential building comprises a protective hood, a machine room, guide rails, an elevator car, a first tractor, a base, a second traction mechanism, a buffering mechanism, a control cabinet and an optoelectronic switch sensor. The first tractor,the second tractor, the buffering mechanism and the optoelectronic switch sensor are arranged, and the first tractor and the second tractor are adopted so that when one tractor breaks down, normal operation of the elevator can be ensured, and unsafe situations are avoided when one tractor breaks down; when the elevator car suddenly falls down, a buffering plate makes contact with buffers, and airsprings are matched with the buffers to buffer the impact force of the elevator car, so that the buffering effect of the elevator is improved; and a distance value is set on the optoelectronic switchsensor, and the optoelectronic switch sensor sends an electric signal to a control cabinet to stop the elevator car from operating when the distance between the elevator car and the optoelectronic switch sensor reaches the set value, so that the phenomenon that the elevator car impacts the roof is effectively avoided.
Owner:董代军
Road sweeping integrated treatment device
InactiveCN112323698AImprove cleaning efficiency and effectivenessAvoid the increase of manpower and material resourcesSievingBio-organic fraction processingProcess engineeringTransport engineering
The invention relates to a road sweeping integrated treatment device. The road sweeping integrated treatment device comprises a sweeping component and a recycling component. The sweeping component comprises a sweeping shell, walking wheels, a leaf collecting component, a light sundry collecting component and a large sundry collecting component. The recycling component comprises a light sundry treatment component, a crushing part and a fermentation component. Through specific arrangement of all the components, integrated treatment of different treatment modes of different garbage on a road is achieved, and meanwhile part of the garbage in the road can be recycled in real time.
Owner:郭文滨
Filter, in particular a fuel filter
Owner:MANN HUMMEL GMBH
Intelligent elevator control system
The invention discloses an intelligent elevator control system. The intelligent elevator control system comprises a detection unit, a first acquisition unit, a second acquisition unit, an execution unit and a control unit, wherein the control unit is used for acquiring and analyzing the detection result of the first acquisition unit after receiving an elevator door closing signal sent by the detection unit, and is also used for sending a command to the execution unit to stop the door closing action of an elevator and to re-open the door of the elevator if the detection result shows that people in a first area need to take the elevator; and besides, the control unit is used for acquiring and analyzing the detection result of the second acquisition unit when receiving an elevator door closing signal sent by the detection unit, and is also used for sending a command to the execution unit to stop the door closing action of the elevator and to re-open the door of the elevator if the detection result shows that people in a second area need to take the elevator.
Owner:合肥同益信息科技有限公司
Large-tonnage automobile loading lift
PendingCN113620146APrevent slidingAvoid offsetNon-rotating vibration suppressionElevatorsAir pumpControl theory
The invention discloses a large-tonnage automobile loading lift, and relates to the field of automobile lifts. The large-tonnage automobile loading lift comprises a lift car and a lift shaft, guide blocks are fixed on the two sides of the lift car, guide rails are fixed on the two sides in the lift shaft, a traction rope is mounted at the top of the lift car, an automobile is loaded in the lift car, and locking assemblies are arranged on the two sides in the lift car. The locking assemblies and limiting assemblies are arranged, first air cylinders operate, and piston rods push clamping blocks to clamp the two sides of an automobile tire located in a positioning groove, so that an automobile is prevented from sliding; two second air cylinders operate, the piston rods can push limiting plates to upwards abut against the position of an automobile chassis, the friction is increased, and the automobile deviation is prevented; and meanwhile, an air pump operates, an air exhaust main pipe exhausts air to enable air exhaust branch pipes and multiple suction grooves to exhaust air, thus the suction grooves attached to the automobile chassis can further adsorb and fix the automobile, automobile loading and transportation are safer and more stable, and the situation that the automobile is not safe enough in the lift car is avoided.
Owner:MATIZ ELEVATOR
Welding processing technology for copper pipe of air conditioner condenser
InactiveCN112809230AEasy to weld and formAvoid unsafe situationsWelding/cutting auxillary devicesAuxillary welding devicesEngineeringMachining process
Owner:盐城志焕网络科技有限公司
Forklift hydraulic system for overturning large component and control method
PendingCN114590751AEasy to transportEasy to installFluid-pressure actuator testingServomotor componentsHydraulic circuitEngineering
The forklift hydraulic system comprises an electric control handle, a rotating mechanism, a horizontal moving oil cylinder and a pressing oil cylinder, the rotating mechanism, the horizontal moving oil cylinder and the pressing oil cylinder are installed on an attachment of a forklift, and the pressing oil cylinder and the rotating mechanism are sequentially connected through an integrated valve block, a main multi-way valve and a hydraulic oil tank to form respective hydraulic loops. Clamping and rotating the large component respectively; the main multi-way valve and the horizontal moving oil cylinder are connected to form a hydraulic loop so that the large component can be centered on the forklift attachment. The signal end of the electric control handle is electrically connected with the integrated valve block and the main multi-way valve. According to the invention, the forklift is adopted to transfer the large components, and the centering, pressing and overturning operations and the rapid short-distance transition of the large components are realized. And it is guaranteed that the center-of-gravity position of the large component is kept in the center in the operation process of overturning and the like, and safety risks such as deflection, irregular shaking and sudden impact are avoided.
Owner:ANHUI HELI CO LTD
An adjustable cooling device for electromechanical equipment
InactiveCN108495532BPromote circulationSolve the problem of not being able to circulateCooling/ventilation/heating modificationsDrive wheelUnsafe condition
Owner:广西思民科技有限公司
Charging pile device with anti-collision function
InactiveCN111301205AExtended service lifeImprove securityCharging stationsAlarmsData acquisitionStructural engineering
The invention discloses a charging pile device with an anti-collision function. The device comprises a base plate assembly, a charging pile body, a top cover and a heat dissipation assembly, an earlywarning assembly and an infrared distance measuring sensor, wherein early warning assembly and the infrared distance measuring sensor are arranged, the infrared distance measuring sensor detects a distance between a surrounding object and the charging pile body, a data collector collects a distance value detected by the infrared distance measuring sensor. When the collected distance value reachesa set value, that an object is about to impact the charging pile body can be determined, a microprocessor controls a buzzer to give an alarm prompt to prompt surrounding personnel to take measures intime, so collision of the charging pile body is avoided, the service life of the charging pile is prolonged, safety performance of the charging pile is improved, the heat dissipation assembly, a heatconduction plate and a heat gathering plate are arranged to absorb heat generated in the operation process of the charging pile body, the heat is conducted into a heat dissipation box, a heat dissipation fan dissipates heat of the heat conduction plate, and the heat dissipation speed is increased.
Owner:孙丽华
Three-phase magnetic latching relay with symmetrically distributed input and output
ActiveCN111710563ASolve the lack of spaceAvoid phase-to-phase short circuitsElectromagnetic relay detailsLoop controlInductor
The invention discloses a three-phase magnetic latching relay with symmetrically distributed input and output. The structure of the three-phase magnetic latching relay comprises three parts: a housingpart, a control loop part, and a magnetic circuit system part; the housing part consists of a housing, an upper cover, and a lower cover. The control loop part comprises an L1 control group loop, anL2 control group loop, an L3 control group loop and a mutual inductor; each set of control loop consists of a movable contact, a movable spring seat, a movable reed, a static contact and a static spring seat. The magnetic circuit system part comprises a coil rack, a support, a pushing sheet, a magnetic steel assembly, an enameled wire, an iron core and a yoke. A traditional interval type wiring three-phase electric meter connecting terminal is inconvenient to connect if a novel electric meter design scheme is adopted. Symmetrical wiring three-phase electric meter connecting terminals are adopted, so that the novel electric meter is adopted to be matched with the symmetrical three-phase magnetic latching relay, the design scheme is convenient, materials are saved, and cost is greatly reduced.
Owner:广西睿奕科技开发有限公司
Key generation method, device, computer equipment and storage medium
ActiveCN109951275BReduce correlationAvoid unsafe situationsKey distribution for secure communicationEncryption apparatus with shift registers/memoriesKey sizeLogical block addressing
The present invention relates to a key generation method, device, computer equipment and storage medium. The method includes obtaining the ID of the logical block address; obtaining the product serial number and key length of the solid-state hard disk; using the ID of the logical block address and the product serial number and the length for key derivation processing to obtain the key. In the present invention, the key derivation process is performed on the product serial number, the set key length, and the ID of the logical block address in the meta-information header, and the process is performed by splicing and the national secret SM3 algorithm, without manually filling in the key table, not only by The ID of the logical block address determines the AES key used, combined with the product serial number and the set key length, it can avoid multiple logical block addresses using a set of keys, and avoid the cracking of the key table information. Data insecurity can also reduce the correlation and primacy between each group of AES keys.
Owner:RAMAXEL TECH SHENZHEN
Practical training table for electricians
The invention relates to the field of electrician training, in particular to a practical training table for electricians. The practical training table for electricians comprises a practical training table body, wherein a panel is articulated with the rear side of a table board of the practical training table body, and an articulated shaft is located in the left-right horizontal direction; a powersupply for practical training is arranged at the upper part of the panel, and a detachable mesh plate is arranged on the panel; after the panel is opened along the articulated shaft, the panel is connected with the practical training table body through a first tensioning assembly, and the first tensioning assembly is located on the rear side of the articulated shaft; after the panel is closed along the articulated shaft, the panel and the practical training table body are connected through a second tensioning assembly, and the second tensioning assembly is located on the front side of the articulated shaft. The practical training table for electricians has the advantages of being better in safety and convenient to operate and low in probability of damage during carrying.
Owner:泗县瑞星精密机械有限公司
A kind of demulsification separation device for vaccine processing
ActiveCN112190979BStir wellImprove the mixing effectNon-miscible liquid separationElectric machineryEngineering
Owner:中普生物制药有限公司
Agile type bicycle brake structure
InactiveCN105197166AExtended service lifeSteel ball material is goodCycle brakesVehicle frameAgricultural engineering
The invention discloses an agile type bicycle brake structure, comprising a shaft casing, a rotary shaft, an expanding brake device, a transfer bar, a connector, a transmission arm, a hex nut, a frame fixing end, an upper return spring, steel balls, an inner expanding brake sheet, an expanding brake shoe, a lower return spring, an expanding brake box, a brake box cover and an eccentric shaft, wherein the shaft casing is connected with the rotary shaft; the rotary shaft is fixed on the expanding brake device; the transmission arm is located at the right side position of the expanding brake device; the connector is installed on the transfer bar; the upper return spring is fixed at the position above the steel balls; the brake box cover is arranged at the left side position of the expanding brake box. The interior of the agile type bicycle brake structure is made of an alloy material, the service life is long, the steel ball material is good and is not likely to break, the expanding brake shoe is good in quality and is not likely to wear, the problem of high cost is avoided, and the transmission effect of the inner expanding brake sheet is good, the response speed is rapid, prompt parking is realized, the practicability is more remarkable, and bicycling is safer and more reliable.
Owner:天津艳玲科技发展有限公司
A Trusted Boot Method Based on Joint Full Disk Encryption of Firmware and USBKey
ActiveCN107679425BAvoid unsafe situationsLow costDigital data protectionInternal/peripheral component protectionUSBBus
The invention discloses a trusted boot method for joint full disk encryption on the basis of firmware and a USB (Universal Serial Bus) key. The method mainly comprises the following steps of firmwarepreparation, boot partitioning preparation, loading preparation and startup trusted boot, wherein the step of startup trusted boot comprises first-time startup trusted boot and non-first-time startuptrusted boot; the first-time startup trusted boot and non-first-time startup trusted boot are both divided into three stages that: the firmware verifies a boot partition, the boot partition verifies the firmware, and the boot partition verifies a disk. The method has the beneficial effects that a hard disk can not be started under an untrusted situation, the safety of data in the hard disk is guaranteed, a secret key is stored in the firmware, the use of other firmware can be avoided, complete machine cost is lowered, and the full disk encryption is added for protecting user data during shutdown.
Owner:KYLIN CORP
On-site processing method for improving power factor of low-voltage asynchronous motor and saving electricity
PendingCN114465415ASmall currentLarge capacityElectric motor controlEmergency protective circuit arrangementsCapacitancePower factor
The invention discloses an on-site processing method for improving a power factor of a low-voltage asynchronous motor and saving electricity, which belongs to the technical field of asynchronous motors and comprises the following steps of: 1, mounting a centrifugal switch on a motor operation circuit; 2, connecting a starting capacitor in series on the centrifugal switch circuit; 3, connecting a running capacitor in parallel on a motor running circuit; 4, a voltage stabilizer is installed behind the operation capacitor and the starting capacitor; and 5, installing a main winding and a secondary winding on a motor operation circuit. According to the current operation state condition of the asynchronous motor, the current power factor of the asynchronous motor is calculated, the power factor needing to be improved is obtained, a proper capacitor is selected and arranged on the spot, an intelligent technology device is utilized, the device can be automatically switched according to the operation condition of the asynchronous motor, reactive power loss is reduced, and the power saving effect is achieved.
Owner:宁夏宏丰特种合金有限公司
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