16results about How to "Avoid security threats" patented technology

The application belongs to the technical field of part cutting, in particular to a loader drive axle machining and cutting device, which comprises a workbench, a cutting machine and a double-station switching assembly; the upper side of the workbench is provided with a sink; the top of the workbench is fixedly connected with a portal frame; the surface of the portal frame is fixedly connected with a telescopic cylinder; the double-station switching assembly comprises a sliding plate, a gear, a toothed plate and a motor one; the surface of the sliding plate is provided with two stations, each station is provided with a positioning mechanism and a cutting seam; the inside of the workbench is rotatably connected with a gear; the bottom of the sliding plate is fixedly connected with a toothed plate; the side of the workbench is fixedly connected with a motor one; the double-station switching assembly can move the workpiece that has completed cutting to the loading and unloading area, and at the same time, the workpiece that has completed installation is moved to the cutting area, so that the cutting and loading and unloading operations are simultaneously performed, and the auxiliary working time of the equipment is effectively shortened.

The invention discloses an intelligent animal dispersing system and method based on an automobile sentry mode, targets within the range of 2 meters around a vehicle are monitored in real time through multiple types of sensors in an environment sensing module, and pedestrians, animals and static obstacles are accurately recognized through an AI algorithm. When it is judged that the target is an animal and enters a safety alert range with the vehicle as the center and the radius being 1 m, the system immediately links the ultrasonic wave generating device and the laser transmitter, the animal close to the vehicle is efficiently dispersed through a composite repelling means combining ultrasonic waves and laser, and the animal is prevented from scratching, colliding and other damage to the vehicle body. On the premise that pedestrians are not interfered, active protection is provided for the vehicle, and the vehicle safety and the protection intelligence level in a sentry mode are improved.

The application provides a gas stove control method and device and a gas stove. The method receives a first user operation on a mechanical button on a knob of the gas stove, and switches a working mode of the gas stove according to the first user operation. In the embodiment of the application, the working mode of the gas stove is switched according to the user operation on the mechanical button on the knob of the gas stove, so that the working mode of the gas stove is quickly switched, and the adjustment efficiency of the working mode of the gas stove is improved. In addition, the mechanical button is arranged on the knob of the gas stove, and the existing knob design is used, so that the safety threat to the user caused by arranging the button on the panel is avoided.

The utility model discloses a centrifuge filters field humidity detection and automatic humidification system, include: centrifuge and workshop installation surface, automatic humidification unit includes DCS automatic control system, DCS automatic control system installs on online hygrothermograph, the online hygrothermograph is assembled with online hygrothermograph, online hygrothermograph is electrically connected with DCS automatic control system, DCS automatic control system is electrically connected with centrifuge online hygrothermograph bottom fixedly connected with support column, support column bottom fixedly connected with humidifier, the humidifier bottom is provided with the shower head, and the humidifier upper end main pipeline is connected with deionized water pipeline and pressure air pipeline. Realize this centrifuge filters field humidity detection and automatic humidification system utilize DCS automatic control system and the cooperation of online hygrothermograph, make the humidifier can according to the workshop's temperature and humidity and carry out automatic spraying, and the temperature and humidity of the workshop are conveniently regulated and controlled, and the practicality and safety of the device are improved.

The application relates to a tensioning device for tinplate coiled material, which comprises a rack, a constant-pressure roller, a pressing assembly, a guide roller and an adjusting assembly, the constant-pressure roller is rotationally connected to the rack, the pressing assembly is used for pressing the coiled material around the constant-pressure roller on the constant-pressure roller, the adjusting assembly comprises two sliding sleeves and a driving piece, the guide roller is coaxially arranged with the constant-pressure roller, two ends of the guide roller are rotationally connected in the sliding sleeves respectively, the sliding sleeves are slidingly connected to the rack, and the driving piece can be used for driving the sliding sleeves to move to the other side of the constant-pressure roller. The application has the effects of facilitating the feeding operation of the tinplate coiled material and ensuring the safety of workers.

The utility model discloses a kind of wired network monitoring equipment intelligent monitoring terminal, it is related to network equipment maintenance technical field.The terminal includes intranet single-chip microcontroller, extranet single-chip microcontroller, one-way photoelectric isolation transmission module, power module, RJ45 interface module, mains detection module, switch drive circuit and 4G communication module.Intranet single-chip microcontroller is connected wired network switch through RJ45 interface module, sends PING instruction and monitors network state;Extranet single-chip microcontroller is responsible for power monitoring, remote control and data interaction;One-way photoelectric isolation transmission module realizes the one-way data transmission and electrical isolation of intranet and extranet;Power module supports mains and battery automatic switching.Terminal can accurately identify mains interruption, network cable loosening and other fault types, support remote restart, guarantee intranet security, improve operation and maintenance efficiency.

The invention discloses a rotary combustion test engine assembly tool and an assembly method. The tool comprises a clamp and a chain, the clamp is of a semi-cylindrical shape matched with the outer wall of the flow guide pipe, the clamp comprises a semi-cylindrical side wall, two side edges distributed on the semi-cylindrical side wall in the circumferential direction are fixedly connected with force application rods respectively, and the two force application rods are located on extension lines of the two ends of one diameter of the semi-cylindrical clamp; chain mounting buckles are arranged on the two side edges respectively, and the two chain mounting buckles are located at the two ends of one diameter of the semi-cylindrical clamp; a pressure sensor is installed on the surface of the semi-cylindrical side wall, a torque sensor is installed on one force application rod, and the torque sensor is close to the semi-cylindrical side wall. The tool is suitable for installation of a propellant charging engine rotary combustion test in the initiating explosive device industry, and the test safety of the rotary combustion test is improved.

The application discloses a VPN gateway inter-key management and control method, a quantum VPN controller and a system, and is applied to the quantum VPN controller. The method comprises the following steps: listening to a gateway communication group inter-key update period, and sending a session key acquisition request to a quantum key management system when the key update period reaches a set value; receiving session key ciphertext information issued by the quantum key management system, and generating a security parameter index SPI used by the gateway communication group in the current key update period dimension based on the session key ciphertext information; issuing the ciphertext information containing the security parameter index SPI to the gateway communication group to activate and use each gateway session key, and performing gateway data encryption forwarding; the security of the session key and the security index SPI information can be realized, the confidentiality of the session key is protected, and the security threat brought by the future quantum computer can be prevented.

The present application relates to the technical field of tension tower suspension hoisting construction, and discloses a 500kV super-high tension tower segmented suspension hoisting construction method for crossing expressways, comprising the following steps: carrying out topographic and geological survey, constructing rock-embedded expanded foundation, precasting tower body in three sections and pre-installing dynamic monitoring system, and optimizing hoisting path; laying out protective facilities, establishing construction and traffic linkage mechanism and emergency plan; adopting large crawler crane to hoist tower body in sections, controlling precision and stress through dynamic monitoring; realizing non-contact conductor erection through unmanned aerial vehicle traction and double-wire tension control; and completing tower body and monitoring system detection debugging and load test operation. The present application optimizes path through A algorithm, hoists tower body in sections through 250-ton crawler crane, abandons road closure mode, innovatively adapts complex terrain through rock-embedded expanded bottom anchor pile composite foundation, constructs triple safety guarantee system, forms complete replicable technology, improves construction efficiency and safety, and promotes standardized development of the industry.

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a net-capturing aircraft parachute landing structure which comprises an unmanned aerial vehicle, the unmanned aerial vehicle is connected with a launching assembly, the launching assembly is connected with a storage bin, the storage bin comprises a net bin and a parachute bin which are arranged vertically, and the front portion of the storage bin is connected with a sealing cover; the bottom end of the sealing cover is hinged to a parachute pack with a built-in parachute, the parachute is connected with the center of a catching net in the net bin through parachute cords, the corner end of the catching net is connected with a balancing weight, and groove holes are formed in the periphery of the net bin. The launching assembly comprises a triggering mechanism and a driving mechanism, and the driving mechanism triggers the catching net through compressed gas. After the launching assembly is triggered, the sealing cover drags the parachute pack to be unfolded firstly, the parachute cord is straightened to open the parachute when the target drone is wound and falls by the capturing net, the mechanical time sequence is accurate, the parachute net is prevented from being wound, an electronic triggering part is omitted, the cost is reduced, the reliability and the target drone security rate are improved, and the device is adaptive to a low-altitude airspace countering scene.

The invention discloses a hardware one-way security data ferry storage device and a method thereof, and aims to solve the problems that cross-physical isolation network data exchange is tedious in operation, low in efficiency and high in security risk. The device comprises a first storage space, a second storage space, a first host interface used for being connected with a first network, a second host interface used for being connected with a second network, a control logic unit and a hardware one-way data transmission module. The two host interfaces are physically independent and can be simultaneously and respectively connected to computers of networks with different security levels. When a low-security network is connected through the first host interface, only the first storage space is visible, and written data is synchronized to the second storage space in real time by the one-way transmission module; and when the high-security network is connected through the second host interface, only the second storage space is visible for reading the synchronized data. According to the mechanism, the possibility of reverse leakage of data is fundamentally avoided, and the efficiency and convenience of data ferrying are remarkably improved while the security of the intranet is ensured.

The invention provides a key management system based on continuous variable quantum key distribution and a group key distribution method. The key management system comprises a quantum key receiving service providing layer module, a quantum key application service layer module, a data management layer module and a routing calculation controller module. The quantum key receiving service providing layer module is set to receive a quantum key generated by a CVQKD terminal and execute a warehousing management process of the quantum key; the quantum key application service layer module is set to receive and authenticate a key application of a user side so as to trigger a key distribution process; the data management layer module is set to safely store the quantum key and all related data in an encryption form; and the routing calculation controller module is responsible for calculating an optimal path for key distribution and authenticating participating equipment.

The application claims a kind of robot teleoperation collision avoidance method based on human arm motion prediction, comprising the following processes: establishing human arm model, human arm model is used to predict the motion trajectory of slave human arm, and is sent to three-dimensional graphics visualization scene. Establish robot model, robot model simulates the motion trajectory of teleoperation robot according to remote operation master end data, and is sent to three-dimensional graphics visualization scene. Establish three-dimensional graphics visualization scene, three-dimensional graphics visualization scene is used to display the motion trajectory predicted by human arm model, and display the motion trajectory simulated by robot model. The human arm model of the method simulates the motion trajectory of human arm according to the feedback of slave visual module, the motion trajectory of human arm and robot that the operator of master end sees through three-dimensional graphics visualization scene is the real-time motion trajectory of slave human arm and robot, so that the action of operator can be continuous, and the safety threat to slave end environment due to time delay can be avoided.

The invention relates to the technical field of macromolecule cable detection, and discloses a macromolecule cable strength detection device which comprises a detection table and further comprises a support fixedly connected to the bottom of the detection table and used for supporting the detection table; the winding mechanism is arranged on one side of the upper portion of the detection table and used for winding the cable; the intermittent tensioning mechanism is arranged on the other side of the detection table and used for fixing the cable to cooperate with the winding mechanism to perform tensioning detection on the cable; and the fixed plate is fixedly connected to the inner wall of the detection table and is used for dividing the detection table into two cavities. According to the invention, through eccentric rotation of the elliptical tensioning turntable, axial pulse tension which changes periodically is applied to the cable, intermittent high load caused by sea waves and sudden change of load is simulated, and meanwhile, through up-down reciprocating motion of the shifting sleeve which is synchronously linked, periodic transverse shifting force and bending stress are applied to the cable, so that the cable is tensioned. And the working condition of friction collision with a ship body and a fairlead is simulated.

The utility model discloses an electroplated part cleaning device for electroplating processing, which belongs to the technical field of cleaning devices and comprises a base and a mounting shell fixedly connected to the upper surface of the base, a cleaning box is arranged in the mounting shell, and a first motor is fixedly mounted in the base. An output shaft of the first motor penetrates through the base and the inner wall of the cleaning box, extends into the cleaning box and is fixedly connected with a supporting sleeve, the inner side of the supporting sleeve is slidably connected with an extension rod, and the top end of the extension rod is fixedly connected with a placement frame. An extension rod is driven by a driving motor to rotate, so that the extension rod drives a stirring blade and a placement frame to rotate, an electroplated part in the placement frame continuously rolls in a cleaning solution, the cleaning solution can be in full contact with each surface of the electroplated part, and compared with a traditional simple soaking mode, the cleaning comprehensiveness and thoroughness are greatly improved; the problem that cleaning is not thorough is effectively solved.

The utility model discloses an aluminum alloy outdoor folding table with a reinforcing structure, which belongs to the technical field of folding tables and comprises a table body I and a table body II, half gears are fixedly mounted on sides, close to each other, of the table body I and the table body II, the two groups of half gears are meshed with each other, two groups of connecting rods are hinged between the two groups of half gears, and the two groups of connecting rods are meshed with each other. The two sets of connecting rods are located on the two sides of the two sets of half gears respectively, and positioning blocks are fixedly installed at the bottoms of the first table body and the second table body, so that folding of the supporting legs is facilitated, the size of the folding table is greatly reduced, a user can conveniently store and arrange the folding table, the space utilization rate is increased, the folding table is convenient to carry for travel, and the portability of the folding table is enhanced. According to the folding table, the stability of the folding table in the non-use state is guaranteed, the table can be rapidly converted from the use state to the folding state convenient to carry and store, and the fixing mode can effectively prevent the table body from being accidentally unfolded due to external force factors such as bumping and collision in the carrying or storing process.