36results about How to "Precise Protection" patented technology

The invention provides a tumbling risk assessment, a monitoring system and an assessment method on the basis of three nine-shaft motion sensors. According to the tumbling risk assessment, the monitoring system and the assessment method, the tumbling state detecting, the tumbling risk detecting and tumbling protecting device control are achieved. The monitoring system comprises an information collecting module, a wireless communication module and a date analyzing module. The three nine-shaft motion sensors are mainly used, two of the nine-shaft motion sensors are placed in two shoes, and another is placed on the wrest; original data of the accelerated speed, the angular speed and the angle are obtained through the three sensors, a Bluetooth module is used for transmitting a data signal, and the signal is transmitted to a data analyzing terminal. The tumbling state is detected by analysis on various data signals through the motion sensors, and the tumbling risk is assessed and fed back to a tester by the combination with the standard of a Tinetti assessing table. The invention further discloses a gait assessment method, according to the method, through various signal types such as the accelerated speed, the angular speed and the angle, modeling is conducted on human bodies, gait characteristics are extracted, and assessment is conducted with Tinetti.

The invention discloses a carrier aircraft intelligent navigation potential energy transfer controllable arresting soft carrier-landing system which comprises an area special for carrier aircraft deck landing, a guide-in slope ascending platform, an arresting vehicle platform, a carrier aircraft novel tail hook assembly, an arresting main rope automatic lifting device, a platform-vehicle automatic separator, an arresting vehicle platform positioning groove and balance protection cover, a controllable unloading device of an arresting vehicle, an automatic arresting insurance auxiliary rope lifting device, arresting vehicle running rails, an intelligent navigation control device and an arresting vehicle offside buffering stopper. Landing is realized under intelligent navigation; slow and accurate carrier-landing is realized by gliding; automatic deviation correcting is performed for slope ascending after carrier-landing; automatic rope lifting is brought after a front wheel enters the groove and is positioned; the platform and the vehicle can be automatically separated instantly after rear wheels board; automatic insurance auxiliary rope lifting is realized in the separation process; automatic informing and potential energy transfer are realized after arresting rope lifting; uniform time-delay controllable brake unloading is realized when a carrier aircraft and the arresting vehicle run; returning to place is realized after the carrier aircraft and the arresting vehicle are unloaded; the carrier aircraft is moved and positioned by a special traction vehicle after slope descending of the carrier aircraft.

The invention provides a connecting device suitable for an extra-cabin handle of a spacecraft. The connecting device comprises a handle B, a guide driving pin B, an anti-looseness device, a clamping ring, a cover plate, a shell B, a handle safety catch, a handle pressing block, a spring pre-tightening block, pre-tightening springs, a spring plug, a handle safety catch driving spring, a lead screw B, a handle safety catch release locking rod, a handle safety catch release locking rod connecting block, handle safety catch release locking rod triggering rods, small springs, an anti-looseness device shell, an anti-looseness spring, an anti-looseness ball and a lead screw B check ring, and a peripheral device is the extra-cabin handle. Guided installation, reliable fixation, accurate pointing and overload protection of the extra-cabin handle and the connecting device are achieved, and therefore positions are provided for installing exposed load devices or other spaceflight devices on the extra-cabin handle.

The present invention discloses a photovoltaic power station direct current boosting collection access system and a control and protection method thereof. The system comprises a generation unit and acollection transmission unit, the generation unit formed by a photovoltaic array module and a DC/DC converter outputs a direct current, the direct current is subjected to direct current boosting through a boosting converter, is collected in a combiner box for uniform output and is converted to an alternating current through an inversion converter to be merged into a large power grid. The system fully employs the controllability of the DC/DC converter, the inversion converter and the boosting converter and the reliability of the protection device to avoid the problems in an alternating currentmode so as to improve the safe and stable operation capacity of the photovoltaic power station direct current boosting collection access system. The control and protection method performs control andprotection segmentation and control and protection layering processing of the system to perform accurate control and protection of the system through coordination between the system control and protection subareas and the system control and protection layers so as to achieve safe, stable and reliable operation when the photovoltaic power station accesses the large power grid in the direct currentboosting collection mode.

The invention discloses a press machine intelligent overload protection device and a control method. The press machine intelligent overload protection device is mainly composed of a detecting part, amechanical executing part, a control part and a feedback part. When a press machine is overloaded, a force sensor transmits a signal to a system controller of the whole machine, the controller enablesthe press machine to stop working and enables a coil winding to be powered off, constraint of magnetorheological fluid from a magnetic field is removed, and the fluidity of the magnetorheological fluid is improved; under the pressure of a spherical support, the magnetorheological fluid passes through a throttling hole and a designed gap to enter an upper cavity, the spherical support and a connecting rod linkage ball fall, and the damage to the press machine due to overloaded blocking run is avoided; and after a crank sliding block mechanism breaks away from a dead area and exits out of the overloaded state, when a stroke switch detects that the spherical support recovers to an original height under the effects of a spring and the self-weight, the coil winding is powered on, a press machine sliding block is adjusted to an upper dead point, the press machine recovers to a normal state, and thus overloaded protection to the press machine is achieved.

The invention relates to an automatic security protection method based on the association of a camouflage agent and a dynamic technology, and the method specifically comprises the steps: 1, setting the camouflage agent: constructing a new Web service on the basis of an original Web server, and enabling the new Web service to contain a plurality of security holes, thereby inducing an attacker to enter the new Web service; 2, setting a flow analysis system, importing the flow in the disguise agent into a flow analysis system; 3, obtaining fingerprint information according to a flow analysis system, 4, setting a dynamic protection system, and storing the hacker portrait into the dynamic protection system; and 5, generating a user portrait when the user accesses the Web service, matching the user portrait with the hacker portrait in the dynamic protection system, and blocking an attacker in real time if the user portrait is successfully matched with the hacker portrait in the dynamic protection system. According to the invention, blocking is carried out based on the unique hacker portrait, and even if an attacker continuously changes the IP, the attacker can be identified for blocking,so that an accurate and real-time protection effect is achieved.

The invention relates to a single-surface galvanized steel plate surface protection process. The single-surface galvanized steel plate surface protection process comprises the following specific steps: (1) steel is received and inspected; (2) dust particles on the surfaces of steel plates are cleaned through pretreatment to guarantee the surface cleanness of the steel plates; and the lower end surfaces and two sides of the steel plates are fixed through a fixing device 1; (3) degreasing treatment: a dipping method is used in degreasing; the temperature is controlled within 50-60 DEG C; and removed grease is prevented from attaching on the surfaces of the steel plates again; (4) hot galvanization is performed; and (5) drying is performed. The single-surface galvanized steel plate surface protection process solves the problems of need of manual movement of the steel plates, need of manual protection of galvanized end surfaces of the steel plates, nonuniform moving speed of the steel plates caused by manual control, incapability of guaranteeing the coating uniformity of acid-resistance substances, imprecise manual protection of the steel plates and incapability of guaranteeing no influence on the galvanized end surfaces of the steel plates by the acid-resistance substances due to wrong operation of the galvanized end surfaces of the steel plates.

The invention belongs to the technical field of explosion-proof armored vehicles, and particularly relates to a manual adjustment buffer isolation device of a military vehicle lightning protection seat. The device comprises a fixing mechanism, a starting mechanism, an energy absorption mechanism and a manual adjusting mechanism, wherein the fixing mechanism is used for connecting the buffer isolation device with a seat framework; the starting mechanism is used for preventing false triggering of the energy absorption mechanism and starting of a buffer energy absorption process of the buffer isolation device; the energy absorption mechanism is used for achieving buffering and absorption of impact energy in an explosion process and includes a steel belt, two steel belt limiting pins and a push block, and the steel belt sequentially penetrates through the steel belt limiting pin, the push block and the other steel belt limiting pin and is wound and attached in a triangular shape; and the manual adjusting mechanism is used for adjusting an energy absorption load of the buffer isolation device according to different weights of passengers. According to the device, energy is buffered and absorbed through plastic deformation generated by the steel belt when the seat is impacted, and impact energy can be greatly attenuated; and the energy absorption load of the buffer isolation device ischanged through an adjusting knob, and an energy absorption effect of the lightning protection seat can be changed according to the weights of the passengers.

The invention discloses a website application vulnerability attack detection method and device, a storage medium and computer equipment, and the method comprises the steps of monitoring an interpretercorresponding to a target website application, and capturing a to-be-executed code of a key function from the interpreter through a hook function; analyzing the to-be-executed code to obtain a to-be-executed process corresponding to the to-be-executed code; and judging whether the to-be-executed code is the execution code of the vulnerability attack behavior or not according to the standard execution process corresponding to the key function and the to-be-executed process. According to the invention, the key function of the execution layer is executed through the hook script, and whether theexecution process of the script meets the specification or not is judged by checking whether the execution process of the script meets the specification or not, so that accurate protection of websiteapplication layer vulnerabilities is realized.

The invention discloses a 5G antenna fixing device with high protection performance and convenient to adjust, which comprises a fixing base, the upper end of the fixing base is movably provided with a fixed connecting foot, the fixing base is internally and movably provided with a rotary adjusting seat, and the upper end of the rotary adjusting seat is fixedly provided with a mounting bottom plate. A hydraulic lifting seat is movably mounted at the upper end of the mounting bottom plate, a connecting positioning sleeve is movably mounted at the upper end of the hydraulic lifting seat, a mounting top plate is movably mounted at the upper end of the connecting positioning sleeve, a supporting support is fixedly mounted at the upper end of the mounting top plate, and a reinforcing connecting rod is fixedly mounted in the supporting support. An antenna mounting plate is fixedly mounted at the upper end of the supporting support. According to the 5G antenna fixing device with the high protection performance and convenient to adjust, the working difficulty can be reduced, the mounting work of workers is facilitated, the protection work of an internal antenna is improved, the use cost is reduced, and the service life is prolonged.

The invention relates to equipment and a method for protecting and cleaning a superplastic diffusion surface of a hollow titanium alloy wing rudder. In the equipment, the specific structures of a mounting base, a centering and clamping device, a working head clamping device and a mobile platform are designed; through flexible cooperation of the components, the efficiency of spraying a protective coating before forming of the superplastic diffusion surface of the hollow titanium alloy wing rudder and the efficiency of removing a pollution layer after forming of the superplastic diffusion surface of the hollow titanium alloy wing rudder are improved.

The invention relates to an acid-proof substance coating protection device used for pretreatment of a single-sided galvanized steel sheet. The acid-proof substance coating protection device used for pretreatment of the single-sided galvanized steel sheet comprises a mounting frame of a U-shaped structure. Conveying support rollers are evenly arranged on the inner wall of the mounting frame from front to back. Adjustment executing grooves are symmetrically formed in the left side and the right side of the mounting frame. Adjustment executing mechanisms are arranged in the adjustment executing grooves. Two fixing grooves are formed in the mounting frame. By adoption of the acid-proof substance coating protection device used for pretreatment of the single-sided galvanized steel sheet, the problems that in the prior art, the to-be-galvanized end face of a single-sided galvanized steel sheet needs to be manually protected in the pretreatment process for galvanization of the steel sheet, manual protection of the steel sheet is inaccurate, the probability that the to-be-galvanized end face of the steel sheet is affected by acid-proof substances due to misoperation on the to-be-galvanizedend face of the steel sheet cannot be avoided, normal galvanization cannot be conducted, and redundant acid-proof substances on the surface of the steel sheet need to be manually recycled are solved.

The invention relates to a chlorophyll a inversion method based on different types of inland water bodies. The chlorophyll a concentration of a water body is inverted by combining an actually measured water body spectrum curve, water quality parameters and a remote sensing image. Based on the actually measured water body spectrum curve, utilizing a K-means clustering method of successive declining to classify the water body, and according to each type of average water body spectrum curve, taking a spectrum angle as distance measurement, and matching to realize remote sensing image water body classification; and further respectively constructing chlorophyll a inversion models suitable for different types of water bodies. According to the method, the problems that a traditional chlorophyll a inversion method is single in model and low in precision are solved, classification of inland water bodies based on different spectrum dominant factors is achieved, the chlorophyll a optimal inversion models are established for different types of water bodies after classification, the prediction precision of the chlorophyll a of the water bodies is improved, effective technical support is provided for preventing and treating water eutrophication and accurately monitoring spatial distribution of chlorophyll a in water and the variation trend of chlorophyll a along with time.