208results about How to "Will not pose a safety hazard" patented technology

The present invention relates to an encryption method based on biometric information. The encryption method provides a dual-factor encryption method based on the biometric information and the secret key, and a single-factor encryption method based on the biometric information. And the encryption method can be used in the fields of network and information security, bio-certification, biometric encryption, and so on. The dual-factor encryption and decryption of the information by the user both require the biometric information and the secure secret key or password which is automatically selected; if either of the biometric information and the secure secret key is not correct, the correct plaintext information can not be decrypted. The single-factor encryption and decryption of the information by the user only requires the biometric information. The encryption method can prevent the non-intended message recipient from decrypting the information; the attacker who obtains the decryption key of the other people can not complete the correct decryption process; the decryption process and the physical identity verification are completed simultaneously; the legitimacy of the identity of the decrypting person is verified; and the system has higher security.

The invention discloses a charging pile with take up and pay off functions and a control method of the charging pile. The charging pile with the take up and pay off functions comprises a charging pile body, a charging gun, a charging gun socket, a charging wire and an extension and retraction device, wherein one end of the charging wire is connected with the charging pile body, and the other end of the charging wire is connected with the charging gun; one end of the extension and retraction device is arranged on the charging pile body; the charging gun socket is arranged at the other end of the extension and retraction device; the charging wire is wound on the extension and retraction device; the charging gun is detachably plugged into the charging gun socket. The charging pile with the take up and pay off functions can take up and pay off the charging wire; when charging is needed, the charging gun is unplugged from the charging gun socket, and the extension and retraction device extends out to pay off the charging wire; after the charging is completed, the charging gun is plugged into the charging gun socket, and the extension and retraction device retracts to take up the charging wire.

The invention discloses an underground rotary garage and a center shaft thereof. The underground rotary garage is characterized in that the center shaft is a hollow shaft, and is fixed on a bearing column; a track or a running limiting device is arranged around the center shaft; circular loading platforms are connected through safety protection devices, and are uniformly arranged on the track or the running limiting device; the circular loading platforms arrive at a brake lifting area through a shortest path; the track or the running limiting device arranged around the center shaft is used for limiting the running paths of the circular loading platforms in order that the circular loading platforms can only rotate about the center shaft at a specified position; the circular loading platforms which are connected through the safety protection devices are combined into a firm circular ring body; the circular loading platforms in the circular ring body cannot move upwards, downwards, leftwards and rightwards, and can only rotate about the center shaft of the underground rotary garage stably and orderly.

The invention provides a magnetic nano silver antibacterial material for sterilization treatment in medical treatment and/or drinking water and a preparation method thereof. An antibacterial agent provided by the invention takes magnetic nanoparticles coated with silica gel as a core and inlaid with antibacterial particles on the outer layer, is preferably a Fe3O4 magnetic nano antibacterial material which is inlaid with silver nanoparticles and coated with silica gel. The antibacterial agent simultaneously has large special surface area of nano material, magnetic separation capacity and magnetic target of magnetic material, dispersant effect of a silica gel coating layer, protection action on the core and strong antibacterial ability of nano silver. In addition, the antibacterial agent issimple to prepare and convenient to operate and can realize directional sterilization, thereby having wide application prospect in medical care and food sanitation sterilization treatment.

The invention provides an automatic steel pipe packaging machine. The automatic steel pipe packaging machine comprises strapping machines, conveying supporting machines, a chain conveyor, a beam frame, automatic welding machines and a programmable controller. The strapping machines and the conveying supporting machines are fixed to the ground side by side; the beam frame comprises vertical frames and a cross beam; the automatic welding machines are fixed to the cross beam, and the positions of the automatic welding machines correspond to those of the strapping machines; the chain conveyor comprises two conveying units, a connecting shaft and a conveying motor, and the two conveying units are fixed to the two sides of the conveying supporting machines and are connected with the connecting shaft; the connecting shaft is in transmission connection with the conveying motor; and the programmable controller is electrically connected with the strapping machines, the conveying supporting machines, the automatic welding machines and the conveying motor. The automatic steel pipe packaging machine is simple in structure and convenient to use; and steel pipes enter the steel pipe packaging machine to be packaged and then are conveyed to a stacking position, the whole process does not need manual operation, labor intensity of workers is greatly reduced, and the packaging efficiency is improved.

The invention relates to an ultrasonic monitoring method for concentration of paste filling slurry conveyed in a pipeline. A system comprises a probe control system, a data transmission system, a data receiving system and a data acquisition system. An acoustic emitter 4 and an acoustic receiver 8 are arranged at two corresponding test points on two sides of a transportation pipeline 6 through retaining rings 5 and screwed and fixed with a bolt 9. Acoustic test data are transmitted to an ultrasonic tester 2 through an acoustic test line 3 and transmitted to a digital display 1 through an acoustic data line 10, and the concentration of the paste filling slurry in the pipeline is displayed on a screen of the digital display 1. The ultrasonic monitoring method has the advantages that a non-destructive testing technology is adopted, the operation is simple, convenient, safe and rapid, the concentration of the paste filling slurry in the pipeline can be monitored in real time, and the defect that the concentration of the paste filling slurry in the pipeline is deduced directly according to slurry preparation concentration while the influence of environment temperature on the concentration of the paste filling slurry in a transportation process in the mine pipeline is neglected in the traditional monitoring method is overcome.

The invention discloses a refining system and a refining process of brine for production of salt from sea water. The refining system includes a multi media filtration system, a multi media filtration cleaning system, an ultrafiltration system, an ultrafiltration backwash system and an ultrafiltration chemical cleaning system; the multi media filtration system includes a multi media filtration system water inletting tank and a multi media filter, the multi media filtration cleaning system includes a multi media filtration cleaning system fresh water box, a multi media filtration system upper-row electric valve, a multi media filtration system lower-row electric valve and a multi media filtration cleaning system cleaning pump; the ultrafiltration system includes an ultrafiltration system water inletting tank and an ultrafiltration membrane component, the ultrafiltration backwash system includes an ultrafiltration system air compressor and an ultrafiltration system water producing tank, and the ultrafiltration chemical cleaning system includes an ultrafiltration cleaning system fresh water box, an ultrafiltration cleaning system citric acid storage box and an ultrafiltration cleaning system hydrochloric acid storage tank. The refining process relates to a physical filtering technology without addition of medicament, and may not cause the hidden danger of product edible salt.

The invention relates to a construction lift monitoring device based on a camera and a monitoring method. The monitoring device is connected with a supervision center through a communication network. The monitoring device comprises a host, an IC card, the camera and a power module, wherein the host comprises a main control plate and a people counting plate which are connected mutually; the power module is connected with the main control plate and the people counting plate; the people counting plate is connected with the camera; and the IC card is connected with the main control plate. The camera collects internal videos of a lift and transmits the internal videos to the people counting plate; the people counting plate analyzes the video signals to obtain information of the number of people in the lift and sends the information of the number of the people to the main control plate; and the main control plate judges whether the number of people surpasses a preset threshold value, and carries out alarming and locks the lift if the number of people surpasses the preset threshold value. Compared with the prior art, the construction lift monitoring device has the advantages of being easy to install, low in cost, high in precision, and high in safety and the like.

The invention provides a method for preparing edible grade transparent concentrated soybean phospholipid; the Gartner color of the phospholipid obtained by the method is less than 8, the transparency is high, the peroxide value is less than 10 meq/kg, the amount of a residual solvent is less than 50 mg/kg, and indicators meet the requirements of food phospholipid. Soybean crude oil is directly used as raw material, an organic solvent is not required to be added in the preparation process, no residual risk of the organic solvent exists, and at the same time, the potential safety hazard in the production process is reduced. In addition, the method solves the problems of deep color and poor transparency of concentrated soybean phospholipid in China and can realize industrialized production.

The invention relates to a device and method for promoting stress field detection and node energy collection of an expansion cylinder of an elevator and belongs to a device and method for the stress field detection of the expansion cylinder. A miniature wind-driven generator is integrally designed with a stress wireless sensor, working nodes and redundant nodes of the stress wireless sensor are fixed on the expansion cylinder of the elevator, a mixed structure of a lithium ion battery and the miniature piezoelectric wind-driven generator based on a wind-induced vibration mechanism is used for supplying power, aggregation nodes are fixed on a casing of an operation platform of the elevator, and the aggregation nodes are connected with an industrial personal computer through universal serial bus (USB) ports. The detection device has the advantages of being safe and reliable; avoiding influences on normal operation of a system even if a certain node breaks down due to the fact that a redundant structure is adopted by a sensor network; and adopting the mixed structure to provide power for the stress wireless sensor to enable each component to have complementary advantages to achieve permanent power supply of the sensor. A miniature piezoelectric wind-driven generator based on the wind-induced vibration mechanism does not need the rotating mechanism, is simple in structure and low in cost, and is combined with the lithium ion battery to form the mixed structure to save spaces.

The invention relates to a heating device for a pipeline, which comprises an outer casing, wherein heating layers, insulating layers and heat preservation layers are arranged inside the outer casing in sequence; the outer casing adopts a split type structure, and is encircled by two semi-circular outer casings connected into a whole through a fastener; circular arc bulges are arranged on the periphery of each semi-circular outer casing; hinge connecting devices are arranged at the two ends of each bulge; the two upper and lower semi-circular outer casings are connected through a hinge. Therefore, the heating device is more fitted with the pipeline, and the heating efficiency is higher.

The invention relates to a compound enzyme preparation for reducing TSNAs (tobacco-specific nitrosamines) as well as a preparation method and an application of the compound enzyme preparation. The compound enzyme preparation comprises sterile distilled water as well as five or more of neutral protease, pectinase, xylanase, glucoamylase, beta-glucanase, alpha-amylase, medium-temperature amylase, cellulase, neutral lipase and tobacco complex enzyme. After treatment with the compound enzyme preparation, content of TSNAs in yellow sun-cured tobacco is reduced by 26.40%-36.81%. The compound enzymepreparation is low in cost and convenient to operate, is easily popularized and applied on a large scale and has great application value in harm decrease of raw materials of tobacco, and quality safety of the tobacco is improved.

The invention relates to an antifreezing method for pear trees in a flowering stage. The antifreezing method for pear trees in the flowering stage particularly comprises the following steps: (2) heat insulation of pear trees, (2) heat insulation of soil, and (3) artificial pollination. According to experiments, by the antifreezing method for pear trees in the flowering stage, the fruit setting rate of the pear trees is guaranteed effectively. Compared with the prior art, the antifreezing method for pear trees in the flowering stage has the characteristics that the fruit setting rate of the pear trees is even increased by more than seven percentage points, and the effect is remarkable. Meanwhile, compared with trunk whitewashing and smoking antifreezing, the antifreezing method for pear trees in the flowering stage is simple to operate, is safe and reliable, does not cause any potential safety hazards, and is worthy of being popularized and used widely.

The invention provides a voltage reactive power operation early warning method and system. The method comprises steps: the operation data of a distribution network are acquired, and based on a pre-established classification and grading order, voltage reactive power early warning analysis is carried out; according to the voltage reactive power early warning analysis and the acquired distribution network operation data, classified early warning distributed cloud computing is carried out; and in combination of a preset early warning mode and according to the cloud computing result, an instructionis sent and early warning information is pushed. According to the method and the system provided in the invention, voltage reactive power early warning analysis and early warning distributed cloud computing can be carried out according to the acquired distribution network operation data and based on the pre-established classification and grading order, accidents can be avoided, the electric energy quality is improved, voltage reactive power of the distribution network is ensured not to cause potential safety hazards, multi-dimensional data instant piecewise early warning analysis is carried out based on an Internet+ technology, multiple modes are combined for early warning, and voltage reactive power instant early warning for the distribution network is realized.

The invention discloses a digital and quantitative electric heating stove, which comprises a stove core assembly and a shell assembly, wherein the whole body of the stove core assembly is cylindrical; the shell assembly is sleeved at the outer side and bottom of the stove core assembly; a weighing device is arranged between the center of the bottom of the stove core assembly and the chassis of the shell assembly; the weighing device is a long bar-shaped sensor with screw holes formed in both ends; one end of the sensor is connected with a boss at the bottom of the stove core assembly through a screw; the other end of the sensor is connected with a screw hole in the chassis through a screw; the sensor is electrically connected with a control circuit which is used for displaying the weight detected by the sensor; an air intake opening is formed in the chassis; an air channel and an air outlet are formed between the stove core assembly and the shell assembly. The invention further discloses an implementation method of the electric heating stove. According to the digital and quantitative electric heating stove, food can be accurately weighed; useful reference is provided for adjusting cooking scheme and cooking time; the cooking processing is greatly facilitated and the cooked food is delicious and nutritious.

The invention discloses a processing method of a vehicle-mounted entertainment system to an combined input of a physical key and a touch screen. The method comprises the following steps: the vehicle-mounted entertainment system sets a physical key as a shortcut key for opening the corresponding type when a user classifies multiple APPs displayed on a touch screen and associates various types with the physical keys in one-to-one correspondence manner; after the physical key is set as the shortcut key for opening the corresponding type, the vehicle-mounted entertainment system amplifies all APPs in the corresponding type of the physical key when one physical key is pressed down, and orderly arranges and displays the amplified APPs on one region of the touch screen; if one APP in the region on the touch screen is clicked within the preset time, the APP is opened; and if all APPs in the region on the touch screen are not clicked within the preset time, the system returns to an interface before pressing the physical key. Through the adoption of the processing method disclosed by the invention, the user can self-define the combined input of the physical key and the touch screen, the user experience is improved, and the drive security is improved.

The invention relates to a safe online fingerprint matching method, which comprises the following steps that: in a safety authentication center initialization stage, a safety authentication center generates system parameters, a user and a service provider register in the safety authentication center to generate respective public and private key pairs, and user fingerprint characteristics are acquired and template data are submitted; in the user template data authorization stage, after the user registers at the service provider, the service provider applies to the security authentication centerto obtain template data of the user; in the user service request stage, a user side collects feature information of a user, and temporary verification fingerprint ciphertext information is generatedby using a homomorphic BGN cryptographic algorithm; and a ciphertext matching stage: after receiving the verification request of the user, the service provider matches the verification request with the template data of the user in the database, if the matching result is true, the service provider accepts the service request of the user, otherwise, the service provider refuses the service request of the user. Efficient and safe online fingerprint authentication is achieved, and the contradiction between the uncredibility of service providers and the privacy of user fingerprint features is solved.

The invention discloses a thinking car based on cross support shock absorption. The present invention is based on the thinking car of cross support shock absorption, comprises car body, and described car body both sides is provided with wheel, and above described car body is provided with support, and described support comprises vehicle bar, seat bar and seat; The rod is fixed to the car body at the bottom; a handlebar is provided at the top; the rod body of the handlebar and the seat post can be rotatably crossed and fixed; the seat post is provided with the seat; the bottom of the bracket is provided with an elastic member . The invention can improve the damping effect of the thinking car.

The invention discloses a street lamp illumination control system. The control system comprises a plurality of control units. Each control unit comprises a power module, a sensor, a controller, a brightness regulator, a time delay module and a communication module. The control units are each arranged on a street lamp. The power modules are connected with the sensors, the sensors are respectively connected with the controllers and the communication modules, and the controllers are respectively connected with the brightness regulators and the time delay modules. The control system disclosed by the invention, while ensuring a vehicle night driving visual field and ensuring the driving safety, improves the energy conservation efficiency of a night road illumination system, prolongs the service life of the street lamps and reduces the maintenance cost of the street lamp system.

The invention discloses a method and a connector of quickly realizing software integration. The connector includes: a corpus, which stores mapping relationships between service instructions of main software and keyboard and mouse instructions of target software, a graphics library, which stores graphical user interface (GUI) information of the target software; an instruction mapping module, which converts the service instructions into the keyboard and mouse instructions; an instruction execution module, which generates keyboard and mouse signals acting on the target software; an interface monitoring module, which monitors the target software, and extracts real-time interface information; an information processing module, which carries out information comparison on the real-time interface information and the corresponding graphical user interface information in the graphics library to judge whether execution is correct; a central control unit, which coordinates time sequence jobs of all the modules according to comparison results of the information processing module, and provides calculation support to all the modules; and a data conversion module, which converts a format of an output data file of the target software into a compatible format of the main software. The connector utilizes graphical user interface butt-joint to realize quick integration of the software.

The invention discloses an underground abandoned roadway full tailings consolidation disposal system and method. The underground abandoned roadway full tailings consolidation disposal system comprisesa pipeline control system, a slurry isolated system and a drainage system. An abandoned roadway is divided into a plurality of stages, lower layer retaining walls are separately built at suitable positions of a first stage and a second stage, during filling, the second stage filling retaining wall is used as a first stage cutoff wall, filling pipelines are laid finally, filling slurry preparationis completed and reaches filling areas through feeding pipes, slurry waste water is discharged through a filter pipe for building the upper layer retaining wall with filling until complete blockage,at the moment, the first stage filling is completed, pipeline threads are opened, the first stage pipeline is disassembled, and receding type filling is carried out on the residual stages gradually. The underground abandoned roadway full tailings consolidation disposal system has the advantages that the defects that a traditional filling method retaining wall is unstable and complete filling cannot be carried out are overcome, and meanwhile, the advantages of economy, rapidness, continuity, safety, stability and efficiency are achieved.