51results about How to "Implement security protection" patented technology

The invention relates to an automatic cloud storage synchronous management system for a plurality of cloud storage service platforms and a method thereof. The automatic cloud storage synchronous management system comprises cloud storage service platforms, an account management module, a normal setting module, a file synchronizing module, an API control module, a file backup module and a log module. A user firstly selects a certain cloud storage service platform and logs the account management module for creating a cloud storage client. Then the normal setting module is used for performing system and network setting on the cloud storage client. Furthermore the API control module is called through the file synchronizing module for synchronously updating a local file and a cloud-end file, thereby realizing automatic storage and synchronization for the plurality of cloud storage service platforms. Secondly, the file backup module periodically compresses and encrypts a document file to be backed up and takes the document file back. Finally the log module records the execution state of the API control module in real time. The automatic cloud storage synchronous management system and the method thereof realize safety protection for the backup files which are stored at the cloud end.

The invention discloses a three-phase power supply default phase and power failure detection system and a braking method. The detection system comprises a three-phase power supply RST, a rectification circuit, a relay circuit, an IPM circuit, two optocoupler processing circuits, a DSP processor, a braking circuit, a Nixie tube and a servo motor and is applicable to a motor control system of a servo driver. The braking method comprises the following steps: judging abnormal conditions such as default phase and power failure of the three-phase power supply, then closing a PWM signal by the DSP processor, cutting off a busbar power supply by virtue of the relay circuit, starting and accessing the braking circuit, connecting a braking power resistor among three-phase windings of the servo motor in series for realizing short connection of the three-phase windings, and generating current in a short connection loop by virtue of residual magnetism potential of a stator winding, so that the motor is rapidly braked. The detection system and the braking method, which are disclosed by the invention, have the advantages that security protection effect on electrical equipment and personnel is realized, implementation is easy, cost is low, and the problems that a motor in existing electrical equipment adopts a band-type brake module, price is high, size is large and control and wiring are complex can be solved, so that the detection system and the braking method have a good application prospect.

The invention discloses an interface unit for a fully homomorphic encryption chip. The interface unit comprises an encryption interface, a decryption interface and a cipher text operation interface. The encryption interface is used for encrypting data of a data owner to generate cipher texts and transmitting the cipher texts to a data processor. The cipher text operation interface is used for receiving the cipher texts from the data processor to operate the cipher texts and transmitting the operated cipher texts to the data owner. The decryption interface is used for receiving the operated cipher texts from the data owner, decrypting the cipher texts to generate plain texts, and transmitting the plain texts to the data owner. The encryption interface comprises a first integer sub-interface and a first real sub-interface, wherein the first integer sub-interface is used for encrypting plain text integers and plain text unsigned integers, and the first real sub-interface is used for encrypting plain text real numbers, plain text floating numbers, plain text double-precision floating numbers and plain text format real numbers. The interface unit for the fully homomorphic encryption chip can complete arithmetic operation, relation comparison operation and logical operation under encryption and can guarantee information safety.

The invention discloses a computer security startup protection method on the basis of a UEFI (Unified Extensible Firmware Interface). The method comprises the following steps of enabling the UEFI to load a USB (universal serial bus) Key driving program in a DXE (Driver Extension Environment) stage, wherein the operation of whether to load the driving program successfully or not can influence to guide a manager to identify USB Key hardware in a BDS (Boot Device Selection) stage; in the BDS stage, guiding the manager to identify the USB Key hardware, and starting USB Key equipment; in a TSL (Transient System Load) stage, verifying a USB Key serial number, loading an OS loader file in a USB Key to a memory, then calling a dynamic password authentication server in the USB Key to perform secondary authentication, finally performing malicious code scanning on an ESP (EFI system partition) partition by means of calling EFI (Extensible Firmware Interface) safety protection software, preventing a key system file in the ESP partition from being invaded, and guaranteeing the security startup of a computer. The method disclosed by the invention has the advantages that the security of a computer startup procedure is enhanced in a manner of combining software and hardware on the premise of not affecting the normal startup of the computer.

The invention discloses a tree barrier clearing aerial robot provided with rope suspended tools. The aerial robot comprises platform supports and operating tools, wherein the platform supports are symmetrically connected to a body, multiple rotor assemblies are connected to the platform supports, the bottom of the body is connected to a tool frame through a rope, tool motors are fixedly connectedto the tool frame, and output shafts of the tool motors are connected with the operating tools. The rotor assemblies and the naturally suspended horizontal operating tools connected with the rope aremounted on the body, the robot is suitable for performing 'haircut' type large-area rapid clearing from the top of a tree barrier from top to bottom or from one side of the tree barrier from outside to inside, is high in operation efficiency, avoids high-voltage power transmission lines in the position where an operator can contact the tree barrier in a short distance and is safer to operate, theclearing operation efficiency can be effectively improved, and the operation risk is reduced; the flexible rope is used for suspending the tools, vibration and impact of the operating tools are automatically isolated, and the attitude control stability of the aerial robot is effectively improved.

The invention discloses a rotary roller elevator capable of achieving stable transmission, which comprises a base; a rotary table rotating around a fixed axis is arranged on the upper surface of the base; a mounting platform is fixedly connected to the upper surface of the rotary table; limiting columns are fixedly connected to the four corners of the upper surface of the mounting platform; a lifting platform is arranged directly above the limiting columns; guide rails are symmetrically arranged on the upper surface of the lifting platform; a conveying platform is arranged on the guide rails; a feeding mechanism is arranged on the conveying platform, and the feeding mechanism comprises a plurality of eccentric rollers I rotating around a fixed axis on the inner wall of the conveying platform, and output shafts of the eccentric rollers I penetrate through the outer wall of the conveying platform and are fixedly connected with gears I; toothed plates I meshed with the gears I are arranged at the bottoms of the gears I; an inclined plate is fixedly mounted on one side of each limiting column; and push rods for feeding of the eccentric rollers I are symmetrically arranged on the side, close to the inclined plate, of the conveying platform. The rotary roller elevator capable of achieving the stable transmission provided by the invention has the advantages of being convenient to feed, safe and stable, and the problems in the background technology are solved.

The invention discloses an ultrathin vehicle-mounted magnetic suspension flywheel battery for an electric vehicle, and a working method thereof. A motor bracket, an axial magnetic flux motor, a flywheel, an inner stator of a five-degree-of-freedom magnetic bearing, a coil and a permanent magnet are coaxially arranged in a shell from top to bottom, and the flywheel consists of an upper layer, a middle layer and a lower layer which are continuous; an upper annular groove is formed in the middle of the upper annular layer of the upper flywheel, the axial flux motor is placed in the upper annular groove, and an annular inner groove, a middle annular cavity and a lower annular groove are communicated and jointly used for placing the inner stator, the coil and the permanent magnet of the five-degree-of-freedom magnetic bearing; and the five-degree-of-freedom magnetic bearing comprises an axial magnetic bearing, a repulsion magnetic bearing, a torsion magnetic bearing and a radial spherical magnetic bearing from inside to outside. The mode that magnetic bearings with different properties are reused is adopted, advantage complementation is achieved, the bearing capacity and control precision of magnetic bearing supporting can be improved, the stability of a flywheel is remarkably improved, and the problem that the loss of a control coil is large due to complex working conditions can be effectively solved.

The invention belongs to the technical field of transmission line engineering construction, in particular to a wire end pulling method used for transmission line hanging line construction. The invention comprises the following steps: 1) arranging a winch; 2) arrange a steering block; 3) arrange a main wire card device and a sub wire card device; 4) arrange a hauling rope; 5), arrange that auxiliary rope, finish the wire tightening and hang operation. The invention can avoid the wire running because of the anchor of the wire tightening and hanging traction system or the loosening of the jaw ofthe wire clamp in the wire pulling and placing process, so as to ensure the normal construction efficiency and improve the construction safety, thereby facilitating the effective development of the wire tightening and hanging construction operation of the transmission line.

The invention discloses a dynamic root key generating method. The method comprises the followings steps, executed in the core network, that a terminal identification is received from UE; a corresponding static parameter is determined according to the received terminal identification; a first root key is calculated in a predetermined algorithm by utilizing a dynamic parameter, the terminal identification and a static parameter; and the dynamic parameter used when the first root key is calculated and an algorithm identification of the algorithm are sent to the UE, so that the UE calculates a second root key paired with the first key in an algorithm corresponding to the algorithm identification by utilizing the stored static parameter, terminal identification and static parameter. According to the invention, the problem of secret key leakage caused by storing the secret key via software is overcome effectively, the safety of root key is protected, and the manual management and maintenance cost of the root key is reduced.

The invention relates to the technical field of security, and provides an infrared alarm device which comprises an inverter CC4069, infrared receiving tubes from VR1 to VR5, infrared transmitting tubes from VD1 to VD4 and a single chip microcomputer. Pins from 1A to 4A of the inverter CC4069 are successively connected with the infrared transmitting tubes from VD1 to VD4. Pins from 1Y to 6Y of the inverter CC4069 are successively connected with pins from P1.0 to P1.5 of the single chip microcomputer. Pins from P0.0 to P0.3 of the single chip microcomputer are successively connected with the infrared receiving tubes from VR1 to VR5. A pin P2.0 of the single chip microcomputer is connected with a resistor R3. The resistor R3 is connected with a triode Q1. The resistor R3 is connected with the base of the triode Q1. The emitter of the triode Q1 is connected with one end of a loudspeaker, and the other end of the loudspeaker is grounded. The collector of the triode Q1 is connected with the positive pole of a power supply. RESET of the single chip microcomputer is connected with a reset circuit. The infrared alarm device provided by the invention has the advantages of good compatibility, fast response speed, strong anti-interference ability, simple peripheral circuit and small size, and carries out infrared transmitting directly through a transmitting module.

The invention relates to a hot runner three-phase current multichannel voltage control system, which comprises a three-phase current input end, a three-phase current input protection circuit, a three-phase current zero-crossing detection circuit, a multichannel thyristor output control circuit, an output current acquisition detection circuit, an output voltage acquisition detection circuit, a heating coil open/short circuit detection circuit, an MCU core circuit and a CAN communication circuit, wherein the three-phase current input protection circuit is connected with the three-phase current input end; the three-phase current input protection circuit is connected with the multichannel thyristor output control circuit and the three-phase current zero-crossing detection circuit; the three-phase current zero-crossing detection circuit is connected with the MCU core circuit, and a detection result can be sent to the MCU core circuit; the MCU core circuit is connected with the multichannelthyristor output control circuit, and output parameters are sent to the thyristor output control circuit; and the thyristor output control circuit is connected with a heating coil load.

The invention discloses a network information micro-sensing safety helmet. The network information micro-sensing safety helmet comprises a helmet body, a visor, two power supply pieces, a first rolling shaft buckle base, a second rolling shaft buckle base, an arc-shaped lengthened edge, an electric air bag and a pressure controller. The surface of one side of the helment body is connected with thefirst rolling shaft buckle base in a buckling manner; the surface of the other side of the helment body is connected with the second rolling shaft buckle base in a buckled mode. The helment body is connected to the surfaces of the two sides of the visor in a buckled mode through the first rolling shaft buckle base and the second rolling shaft buckle base. The surface of one side, far away from the helmet body, of the visor is fixedly connected with the arc-shaped lengthened edge; the electric air bag is arranged in the middle of the interior of the helmet body, a pressure controller is fixedly connected to the surface of the upper portion of the exterior of the helmet body, power supply pieces are arranged on the portions, located on the two sides of the visor, of the surface of the helmet body respectively, and a control wire of the pressure controller is connected with the power supply pieces and the electric air bag.

The invention discloses a water-control type water-return secondary stop safety protector for a hydraulic compressor. A high-pressure electromagnetic valve is serially arranged on a water return pipeline of a distributor of the hydraulic compressor and is respectively in a water-path opening state and a water-path cut-off state when the high-pressure electromagnetic valve is electrified or power off. The power supply input end of the high-pressure electromagnetic valve is connected with a power supply wire after being connected with a normal-open switch of a corresponding intermediate relay in series, and an automatic control circuit of the intermediate relay comprises a travel switch arranged on an operating disc of the hydraulic compressor. The intermediate relay is a normal-open relay, and the travel switch is respectively in a switched-on state and a switched-off state when the operating disc is not zeroized. In the normal work of the hydraulic compressor, the operating disc is not in the zeroized state, the high-pressure electromagnetic valve is electrified, and the water path is in an open state, or else, the water path is in a cut-off state to prevent the accident. The invention realizes the secondary protection of the hydraulic compressor.

The invention provides a security protection interface device for a cloud computing platform. According to the security protection interface device, security assurance for an information platform canbe well improved. The security protection interface device comprises a machine body, a socket is arranged on machine body, a shield is arranged on the front side of the machine body; through holes areformed in the shield, a rotary disc is arranged in the shield, grooves are formed in the end surface of the rotary disc; a wedge-shaped baffle plate is mounted in each groove; first springs are connected between the wedge-shaped baffles and the grooves; one of the grooves is designed to be a communicating groove, and the other grooves are blind grooves; a wedge-shaped hole is formed in the end face of the rotary disc, a push rod is arranged on the shield, the push rod is pressed to drive the rotary disc to rotate unidirectionally through matching of the push rod and the wedge-shaped hole, a torsional spring is connected between the rotary disc and a base body, and the rotary disc can move forwards and backwards along a connecting shaft and can reset under the action of the torsional spring. According to the security protection interface device, the security protection of the computer platform interface can be well realized, and foreign persons are prevented from copying internal information.