168results about How to "Fast security" patented technology

An animal restraint system which involves variable adjustability of maximum extension. A braking device with a pivoting tip which can move from a neutral position to a locked engaged position, a disengaged position, and a semi-engaged position. The semi-engaged position allows for spool rotation in the direction of retraction, while preventing spool rotation in the direction of extension. A brake lock with multiple settings including engaged position, disengaged position, and a semi-engaged position. A spool with teeth where one or more of the teeth is different from the others in shape, size or relative position to promote brake engagement efficiency. A leash maximum settings display. A moving “leash” guide which reduces tangling during extension and retraction. An adjustable handle grip to accommodate different hand sizes. A snap-on accessory attachment system. A leash dispenser system which limits full extension to reduce system failure.

The invention discloses wireless parallel test system and test method based on ZigBee, which relate to the technical field of test. The invention solves the problems of large field wiring construction amount and influence of a test signal by field wiring quality caused by the fact that the traditional test system acquires a test signal in a wire communication way. The test system forms a ZigBee network by adopting main wireless communication equipment and a plurality of wireless communication modules; the main wireless communication equipment is connected with a test control terminal by adopting a UART interface; and the wireless communication module in each kind of test equipment is connected with a built-in test module by adopting the UART interface. In the method for realizing test of the test system, the test control terminal is connected with the main communication equipment by the UART interface to realize the transmission of a test command and a test result, and the main wireless communication equipment and a plurality of kinds of equipment to be tested realize data communication by adopting the ZigBee network. The invention is suitable for a modern automatic test system, can realize the mutual coordination of hundreds of equipment to realize communication, and has high test efficiency.

The invention relates to a three-dimensional Arnold mapping-based image grouping encryption method, which is characterized by comprising the following steps: firstly, adopting an Amold mapping extended to three dimensions to construct an S box; then, performing sorting scrambling on a chaotic sequence generated by a Chebyshev mapping; and finishing the encryption operation through multi-iteration. The theoretical analysis and experimental result prove that the three-dimensional Arnold mapping-based image grouping encryption method has the advantages of large key space, high sensitivity, high speed, excellent safety, strong attack resistance, and the like. Compared with other similar methods, the three-dimensional Arnold mapping-based image grouping encryption method guarantees the safety and has higher speed, and is more applicable for graphic data encryption. The main superiority of the method is that: the method has enough key space to resist an exhaustive attack, and the change of a key at any bit can completely change an initial value and the parameters of the chaotic sequence. Therefore, the sensitivity of the key is greatly improved; any useful information cannot be exposed by the statistical property; and the relativity of adjacent pixels of an intensity diagram is small and the attack resistance is strong.

The invention discloses a lithium metal electrode, a preparation method thereof, a negative electrode of a lithium metal secondary battery and the battery, and belongs to the technical field of lithium batteries. The lithium metal electrode comprises a foam electrode substrate with a plurality of hole cavities and metal lithium particles distributed in at least one hole cavity of the foam electrode substrate; and the foam electrode substrate is made from a foam metal material or a carbon foam material. The hole cavities of the foam electrode substrate can effectively restrict the volume expansion of the metal lithium particles in the charging and discharging process and reduce the generation of lithium dendrites, so that the stable performance, cycle performance, quick charging performance and safety performance of the lithium metal secondary battery using the lithium metal electrode as the negative electrode are effectively improved.

A portable transmitter is provided which transmits an operating instruction in the form of a radio wave to a controlled device which continues to operate while receiving the operating instruction. The portable transmitter includes a push switch and a touch sensor. The portable transmitter works to supply the electric power to the touch sensor for a given period of time in response to depression of the push switch. When the touch sensor senses a user's touch thereon, and the push switch is depressed, the portable transmitter transmits the operating instruction to the controlled device and continues such transmission as long as the touch sensor senses the touch thereon regardless of the depression of the push switch. In other words, once the operating instruction has been outputted to the controlled device, the user is required only to touch the touch sensor in order to make the controlled device continue the operation.

The invention involves a method for tracking bags containing biological fluids for dispensing within a human body, including, but not limited to human blood and plasma. The method comprises the steps of: obtaining a bag configured and arranged for sterile, aseptic, and stable retention of biological fluids; placing a quantity of the biological fluids into the bag; providing a first information-processing device with a data-input device and with a data-transfer device, said data-transfer device capable of writing data that has been input into the information-processing device, into a data-storage chip in a manner readable by a second information-processing device; affixing to the bag a readable / writeable data-storage chip; collecting fluid-data about the biological fluid; and inputting data, such as the fluid-data, into the first information-processing device for data transfer onto the chip. The readable / writeable data-storage chip is capable of interfacing with the first and second information-processing devices. The first information-processing device can write data to the data-storage chip and the second information-processing device can read of the data on the chip.

A processing apparatus 2 has a secure domain 90 and a less secure domain 80. Security protection hardware 40 performs security checking operations when the processing circuitry 2 calls between domains. A data store 6 stores several software libraries 100 and library management software 110. The library management software 110 selects at least one of the libraries 100 as an active library which is executable by the processing circuitry 4 and at least one other library 100 as inactive libraries which are not executable. In response to an access to an inactive library, the library management software 110 switches which library is active.

A trampoline includes a jumping fabric having peripheral edges weaved together with an elastic net surrounding the jumping fabric wherein the elastic net having outer edges wrapped around and attached to a supporting bottom frame supported on a plurality of legs.

The invention relates to a method and system for comprehensively purifying, collecting and utilizing overpass rainwater. The system disclosed by the invention comprises a rotational flow separation module, a high-efficiency purification module and a plastic water storage module. According to the method, based on the principle of gravity rotational flow sand setting technology and absorption, filtration and purification technology, emission, collection and purification of overhead overpass rainfall runoff are realized, suspended particles and organic and inorganic pollutants are respectively eliminated efficiently; furthermore, water storage and reuse are carried out to form integrated comprehensive technology for collecting and reusing purified rainwater; multiple effects such as fast elimination of rainwater on an overpass, water-saving irrigation of a green belt below an overpass and pollution control of overpass roadway runoff can be achieved simultaneously; and the method and the system for comprehensively purifying, collecting and utilizing overpass rainwater disclosed by the invention have wide application prospect in the fields of municipal construction and non-point source pollution control.

The invention discloses a control system for automatic driving trains and platforms. The control system comprises a judging module and a control module, wherein the judging module is used for judging whether or not anyone intends to enter a platform area or a protecting area between platforms; if someone intends to enter the platform area or the protecting area, the control module is used for controlling the trains completely or partially located in the protecting area to stop in an emergency braking mode. According to the control system for the automatic driving trains and the platforms, as a first switch is arranged, the safety of persons entering the platforms or the protecting area between the platforms is guaranteed; as a second switch is arranged, it is guaranteed that the trains are started when no persons are in the trains; as a third switch is arranged, it is achieved that the trains are rapidly controlled through the platforms under the emergency conditions, and the safety of the trains is guaranteed; as a fourth switch is arranged, it is guaranteed that the trains can rapidly obtain information and normally pull in after breakdowns of platform doors are removed.

The invention discloses a fire hazard prevention and safety evacuation system based on a BIM, and the system comprises a monitoring terminal which is disposed at a monitoring command center; a plurality of temperature sensors which are used for sensing the temperature of a material in a target building, and transmitting the temperature alarm information when the temperature exceeds a safety temperature threshold value; a smoke and dust sensor which is used for sensing the concentration of the smoke and dust, and transmitting the smoke and dust alarm information when the concentration exceeds aconcentration threshold value; and an RFID positioning device which carries out the information communication with the temperature sensors, the smoke and dust sensor and the monitoring command center, so as to synchronize temperature alarm information, the smoke and dust alarm information and the obtained fire position to the monitoring command center, and display the fire position through the BIM. The system can provide accurate position information of a danger source after an accident, achieves the active and quick prevention and execution of the safety evacuation and rescue, and improves the management level of the safety operation of a building.

An electric vehicle includes a malfunction detector configured to continuously monitor a torque command from an ECU as well as one of the followings: signals indicating a rotational frequency of a motor unit; signals indicating a rotational frequency of a wheel driven by the motor unit; signals indicating a rotational direction of the motor unit; signals indicating a rotational direction of the wheel driven by the motor unit; and a motor current, and detect, according to a predefined rule, a malfunction of the motor unit, based on the monitoring information. The electric vehicle also includes a malfunction-responsive controller configured to cause at least one of shut-off of a drive current to the motor unit and braking with a mechanical brake, if the malfunction detector detects a malfunction.

A pressing device and a method of providing a change of pressure between two pressure states: a low pressure state and a high pressure state of at least 4000 bar, in a pressure vessel of a high pressure isostatic pressing device in which a liquid pressure medium is used for generating the pressure. A first pressure changing device is used for changing the pressure from one of two pressure states to an intermediate pressure state, and a second pressure changing device is used for changing the pressure from the intermediate pressure state to the other one of the two pressure states.

The present invention discloses method and device of igniting detonator. Semiconductor chip is used as the igniting material of detonator and is heated with current pulse flowing through to vaporize the semiconductor chip material to form high temperature and high pressure plasma impact body. The plasma and its heat energy act on the detonating explosive grain to ignite the detonator. The present invention has greatly raised safety performance, excellent capacity of resisting static electricity, stray current and electromagnetic radiation, no environment, simple operation, short acting time and other advantages. The present invention may be used to ignite several kinds of explosive material.

The invention provides an electric power infrastructure construction site violation identification method and system. The method comprises the following steps: obtaining electric power infrastructure construction site video frame image data; performing equipment feature extraction on the video frame image by using a first neural network model to obtain an equipment feature map; according to the obtained equipment feature map, a preset candidate region generation network is utilized to obtain feature candidate regions of various scales and aspect ratios; and utilizing a preset classification regression network to obtain an equipment identification result according to the obtained equipment feature map and the feature candidate region, and performing field violation judgment according to the equipment identification result. According to the invention, an artificial intelligence deep learning algorithm is adopted to realize rapid identification of various violations of the power infrastructure construction site, and the intelligent identification efficiency and accuracy of violation operation are improved.

An actuating device for a safety arrangement in a vehicle has a pneumatic muscle as drive and a pyrotechnical gas generator for feeding the pneumatic muscle.

The invention discloses a mining fast energy absorption erosion prevention yielding component. The component adopts a waved cylindrical structure comprising convex textures (52) and concave textures (53), wherein the convex textures (52) and the concave textures (53) are connected with each other according to a certain included angle (51). As the thin wall cylindrical structure in a specific wave shape is made of an elastic plastic material with high strength and large impact ductility, nominal support capability can be reached under the action of axial dead load, considerable elastic plastic compressive deformation yielding can be realized under the action of impact load, external impact can be eliminated fast, and impact energy can be absorbed efficiently. As support material or support equipment in a support system is protected from being damaged seriously, the safety of on-site working personal, and other production equipment are protected.

The invention relates to a skin external preparation, in particular to an external preparation capable of promoting the active circulation of cells. The external preparation comprises the following components in percentage by mass: 20 to 50 percent of glycosaminoglycan, 20 to 50 percent of amino acid, 10 to 30 percent of natural extract, 5 to 10 percent of diguanosine tetraphosphate (Gp4g) and 1 to 5 percent of inorganic salt; and micro elements are added in an amount which is 0.001 to 0.05 percent based on the total mass of the previous components are added. The external preparation is prepared by using distilled water. The external preparation capable of promoting the active circulation of cells, which is provided by the invention, can be externally sprayed or applied on skin to quicklysupply inorganic salt to skin, activate cells and accelerate the metabolism of skin cells; and the external preparation also can supply energy and required water to cells, improve the micro circulation of skin and effectively clean free radicals, activate the self-healing system of human body, quickly penetrate and freely enter and leave cells, repair cells safely, naturally and gently, accelerate cell division, increase metabolic capacity and delay aging.

The present disclosure provides a safe and simple method, as well as a new instrumentation to improve the technique of the minimally invasive spine surgery through micro endoscopy with the use of hooks and a new improved stabilization interspinous device or implant which is placed as an auxiliary in the function of the affected intervertebral disk, by relieving the pressure on spinal nerves.

The invention provides a multi-axis linkage embedded type digital control system and a development method thereof. The method comprises steps of constructing a hardware platform; designing a hardwarecircuit; transplanting an ARM-linux embedded real-time operation system, carrying out RTOS development on a multi-core processor; establishing communication between inner cores of the multi-core processor, establishing communication between the multi-core processor and an FPGA, developing firmware programs of a periphery circuit module and solidifying DSP, the FPGA firmware programs and the ARM application programs to the system. The digital control system comprises the multi-core process, the FPGA, a power supply module and the periphery circuit module based on FPGA expansion. The power supply module is connected with the multi-core processor, the FPGA and the periphery circuit module. The multi-core processor is connected with the FPGA. According to the invention, design difficulty levelof the system can be effectively reduced; development period is greatly shortened; and the system and the method help users to concentrate on solving specific application problems.

The invention discloses a convoluted excavation method for an undermined tunnel with an extra-large cross section, which comprises the following steps of: a, excavating a right side small pilot tunnel; b, excavating a transverse channel; c, excavating a left side horizontal upper pilot tunnel; d, performing multistep expanding excavation on a middle lower pilot tunnel; e, excavating an inverted arch and core soil; and f, constructing a secondary lining of the large cross section of the tunnel. Compared with the conventional tunnel excavation method, the convoluted excavation method for the undermined tunnel with the extra-large cross section has the advantages that: the small pilot tunnel climbs and is divided into a plurality of parts to be excavated when a small cross section is abruptly changed into the large cross section, so that the safety risk of excavating the large cross section at one time is reduced, and the problem of traffic organization in the tunnel subjected to single-head advancing is solved by a circuitous folding mode; back break during excavation is effectively controlled, the using amount of various materials is saved, and the time consumption and the wastage rate of mechanical equipment are reduced; and compared with the conventional center diaphragm (CD) and double-side-wall excavation methods, the method is easy to operate, good in cross section excavation effect, quick in excavation progress and high in safety performance.

An enclosure for wiring devices such as switches and receptacles is provided. A housing member has a main front chamber, a main rear chamber and a central dividing wall separating the front chamber from the rear chamber. The housing has an open front leading to the front chamber. The rear chamber is divided into a plurality of electrical feed ports through which electrical power is provided to and may be taken from the enclosure. The feed ports each have an open back providing access to the ports but not to the main front chamber. A front plate member sized to completely cover and seal the open front of said front chamber is permanently attached to the housing to make a fully enclosed factory sealed enclosure in the front chamber. The front chamber contains a wiring device. Hot, neutral and ground busses extend between and interconnect the feed ports. These busses have segments extending through the dividing wall and connected to a wiring device. The present invention is designed primarily for safety but because of the use of fewer components and because of a greater ease of installation, significant labor savings also result from the present invention.

The invention discloses a novel vacuum drying oven. The novel vacuum drying oven comprises an oven body, a drying chamber, a hot air circulation system and a vacuum unit, wherein a vertical partition is arranged in the drying chamber and divides the drying chamber into a storage cavity and an air outlet cavity; heating tubes are distributed at the inner bottom of the storage cavity; heating plates are arranged on two side walls of the storage cavity; the hot air circulation system comprises a magnetic fluid circulating fan mounted on the top wall of the air outlet cavity; the rotating shaft of the fan penetrates the top wall; the air outlet part of the fan is located in the air outlet cavity; an air inlet is formed in the vertical partition and corresponds to the air outlet part; the storage cavity and the air outlet cavity are communicated through the air inlet. Therefore, the interior of the drying chamber is designed into a unique air duct structure, and through cooperation of the magnetic fluid circulating fan, air is uniformly circulated, and the temperature distribution uniformity in the drying chamber is extremely good; a cooling water path for cooling down a magnetic fluid can cool down the magnetic fluid in real time, so that the vacuum leakproofness, the service performance and the safety performance of the drying oven are better.

The invention discloses an ELISA kit used for on-site detection. The kit comprises a kit body; an antibody detection plate, a sample dilution reagent, positive / negative contrast, a cleaning reagent, an enzyme conjugate reagent, a substrate reagent, a stopping reagent, a disposable dropper and a cover plate membrane are arranged in the kit body; the substrate reagent is composed of a substrate, a substrate diluent and an indicator II; the substrate diluent is a concentrated solution; the sample dilution reagent, the cleaning reagent, the enzyme conjugate reagent, the stopping reagent, the substrate and the indicator II are all solid. The ELISA kit has the advantages of great portability, convenient use and high safety. Furthermore, the requirement of the on-site detection can be met.

An actuating device for a safety arrangement in a vehicle has a pneumatic muscle as drive and a pyrotechnical gas generator for feeding the pneumatic muscle.

The present invention discloses a digital signature method on elliptic curve based on public key certificate. It is a digital signature method by proceeding from discrete logarithm problem on the elliptic curve and utilizing anti-collision miscellaneous function and public key certificate. It has the provable safety and quick operation speed. It can be extensively used in network communication, electronic business and bill, certificate and identity identification and information anti-false technology.

Methods and apparatus related to peer / network / service discovery in a mobile wireless system, e.g., an ad hoc peer-to-peer network (100) are described. Transmission of discovery information, e.g., upper layer discovery information, is divided into a number of portions (An, Bn, Cn, Dn) to be transmitted separately over time. Transmission of the individual portions is structured so as to enable flexibility in the frequency of the peer discovery transmissions as well as the monitoring of such transmissions. Various embodiments facilitate rapid discovery and / or secure discovery, e.g., selective discovery by trusted peers. The structuring enables proxying of some transmissions by a third party, e.g., an assist node (114). The assist node receives discovery information portions being communicated at a first rate and retransmits the received discovery information portions (An, Bn, Cn, Dn) at a second rate which is higher than the first rate.

The invention provides a DAB converter wide-range regulation and control method based on multi-mode model prediction, and relates to the technical field of new energy and direct-current microgrid conversion. By adopting multi-mode control, a DAB converter can operate in a wider voltage range, different control targets are optimized through mode recognition, the method is more suitable for complexworking conditions, and normal operation of the DAB converter is maintained. A mode A, a mode B and a mode C are adopted to carry out wide-range regulation and control on the DAB converter, the transmission efficiency and the dynamic response of the DAB converter are improved, and the calculated amount is reduced under the condition that no Kalman filter exists and steady-state operation is not influenced. The dynamic performance, the steady-state transmission efficiency and the robustness of the DAB converter can be effectively improved in a wide range.

The invention relates to network security and provides a method and a system for rapid detection of bulk site vulnerabilities based on web fingerprints. The method for quickly detecting bulk site security vulnerabilities based on web fingerprints comprises the following steps: collecting and classifying target group fingerprints; matching vulnerabilities and the fingerprints, and screening out thesites which may have current vulnerabilities in the target site group; conducting site vulnerability detection to confirm the existence of the vulnerabilities. The method firstly quickly matches thecomponents and versions that are affected by the vulnerability and then carries out targeted vulnerability strategy scanning on the batch of possibly affected sites, thereby rapidly realizing site vulnerability risk detection, realizing site vulnerability early warning and safety response, and reducing the safety risk caused by site vulnerabilities.

The invention provides a process for preparing 3,4-dimethylpyrazole phosphate, which includes the steps: (1) reacting metallic sodium with 2-butanone and ethyl formate to produce 2-methyl-3-oxobutanoic acid sodium salt; (2) reacting hydrazine hydrate with the 2-methyl-3-oxobutanoic acid sodium salt to produce 3,4-dimethyl pyrazole; and (3) reacting the 3,4-dimethyl pyrazole with phosphoric acid to produce the 3,4-dimethylpyrazole phosphate. The process for preparing the 3,4-dimethylpyrazole phosphate has the advantages that raw materials are easy to obtain, reaction conditions are mild, the reaction time is short and by-products are few.