226results about How to "Absolutely safe" patented technology

The invention relates to a multi-row micro-differential roadbed deep hole blasting construction method, which comprises the following steps of: (1) selecting blasting parameters; (2) calculating security; (3) arranging a stair and a free face; (4) distributing holes and drilling holes; and (5) blasting. The blasting method is a multi-row deep hole millisecond micro-differential blasting method; and the blasting is performed by pull trough blasting and side slope blasting in a roadbed sequentially, wherein the pull trough blasting is loose blasting and the side slope blasting is precraking blasting. In the method, a shock conducting tube non-electric priming system micro-differential control blasting technology, a comprehensive blasting construction scheme of loose blasting, the deep hole millisecond micro-differential blasting technology and the roadbed side slope precraking blasting technology, and a wide-pitch and low-resistance hole distribution mode are adopted, so that explosivesand detonators are saved, the drilling mechanization degree is enhanced, the labor cost is reduced, the blasting effect is enhanced, the large rate of blast rocks is reduced, the material abandoning rate is reduced and harms of blasting vibration, impact waves, flying stones and the like are reduced; furthermore, when the blasting effect is enhanced and the stability of the blast roadbed side slope rocks is guaranteed, the absolute safety of blasting can be guaranteed.

The invention discloses an intelligent housing system and a control method. The intelligent housing system is mainly composed of a gateway server, a client, a modulator-demodulator, a wireless router, a wireless coordinator and at least one wireless node, wherein the wireless router is connected with the Internet through the modulator-demodulator; the client is connected with the wireless router, and the wireless router is connected with the gateway server through a network cable and/or a mobile Internet; the gateway server is connected with the wireless coordinator through a serial port; the wireless coordinator is wirelessly connected with all the wireless nodes. The intelligent housing system disclosed by the invention has the characteristics of being convenient to install and maintain, low in cost, capable of realizing dynamic management for a housing control node, convenient to operate the client, high in system safety, stable, efficient, energy-saving and environment-friendly, and the like.

The invention discloses an application program communication processing system, an application program communication processing device, an application program communication processing apparatus and an application program communication processing method. The application program communication processing system comprises a client and a server, wherein the client generates a request message including request information, signature information and a session key, carries out the signature and encryption by utilizing a client private key certificate, a session key and a server public key certificate in the generation process, transmits the request message to the server and receives a response message transmitted by the server after the request message is parsed; the server parses the received request message transmitted by the client and transmits the response message to the client, wherein the server performs the decryption and verification by utilizing a server private key certificate and a client public key certificate in the process of parsing the request message. By adopting the scheme provided by the invention, the application program communication safety can be improved.

The invention relates to a method and a system for constructing a modular medical instrument based on USB HUB. The method comprises the following steps: each functional circuit adopts modular design, independently adopts a microprocessor and has the functions of independent AD conversion and USB communication control; each functional module is connected with a USB HUB module which has an electrical safety isolation function through a USB bus; and the USB HUB module is connected with a central console (PC) or server hardware through the USB bus, and connected with a special software platform based on the PC to form a complete medical instrument system. The method can realize high reliability and easy maintenance of the medical instrument, and the flexible expandability of the functions of the medical instrument, change the mode that the functions of the medical instrument are set by manufactures and can not be modified by a user, lead the user to be capable of randomly combining (increase or decrease) the functional modules according to specific detection requirements, and realize the personalized physiological parameter detection function and the function expansion of the medical instrument by USB topological structure.

The present invention provides an inherent security pool-shell combination low temperature nuclear heating device and an operation program thereof, which belongs to nuclear energy centralized heat-supply field. The invention mainly comprises the following procedures: adopting separated layout, forced circulation and high effective small temperature difference heat exchange in primary loop of reactor; under the precondition that parameter requirements of centralized heat-supply by big cities heat supply network satisfied, reducing work temperature of shell-type heating reactor as far as possible; meanwhile optimized layout of equipment, and organic combination of normal pressure pool in large volume (47) and shell-style heating reactor(29) remove accident possibility of water loss and coldness loss of reactor core (1). Complete inherent safety principle is carried out in the invention. Thus, absolute security of nuclear heating can be guaranteed by using mature pressurized water reactor technology, and enterprises have develop nuclear station pressurized water reactor experience can possibly jump over research and develop stage and enter into nuclear heating market directly, and make a real contribution for energy-saving and emission-reduction and improving country energy structure.

The invention discloses a system and a method for verifying a file code signature. The system comprises a user signing module and a signature verifying module, and the user signing module is connected with the signature verifying module in a communication way. The system is characterized in that the signature verifying module comprises a verification processing module and a public key processing module; the verification processing module is connected with the user signing module and the public key processing module in the communication way respectively; the verification processing module is used for controlling to execute verification of a signature value; and the public key processing module is used for controlling to process a trust public key. The method for verifying the file code signature compares a complete summary value with a decrypting complete summary value and confirms whether to execute a mode of a file program according to the comparison result so as to effectively prevent virus programs and Trojan-horse programs entering, ensure the absolute safety of file programs, and improve verifying efficiency and operation flexibility at the same time.

The invention relates to a preparation method of a novel all-solid-state lithium ion battery, belonging to the technical field of lithium ion batteries. The preparation method comprises the steps of:mixing and uniformly dispersing a cathode active substance, a conductive agent and Li3OX as a cathode ingredient; mixing and uniformly dispersing an anode active substance, the conductive agent and Li3OX as an anode ingredient; mixing and uniformly dispersing a main body solid electrolyte and Li3OX as a solid electrolyte layer ingredient; coating the cathode ingredient on a cathode current collector, coating the anode ingredient on the anode current collector, stacking the anode current collector, the anode ingredient, the solid electrolyte layer ingredient, the cathode ingredient and the cathode current collector in order layer by layer to form a solid battery laminated cell, performing sintering of the solid battery laminated cell at a temperature of 282-400 DEG C while applying the pressure to the solid battery laminated cell, packaging the sintered solid battery laminated cell by adopting a battery membrane shell to obtain a novel all-solid-state lithium ion battery. The preparation method is simple, friendly in preparation environment, and is suitable for large-scale production.

The invention discloses a sealing gas sampling apparatus, including an adapter, a first electromagnetic valve, a second electromagnetic valve, a gas container, a vent valve and a minisize high-pressure air pump. One end of the adapter is provided with a connecting column and a convex column and the other end is provided with an air inlet and an air outlet. The air outlet of the adapter is connected with the inlet of the first electromagnetic valve. The outlet of the gas container is connected with the inlet of the minisize high-pressure air pump. The outlet of the minisize high-pressure air pump is respectively connected with the inlet of the second electromagnetic valve and the vent valve via a tee joint. The outlet of the second electromagnetic valve is connected with the air inlet of the adapter. An interface is arranged on the gas container. The sealing gas sampling apparatus can sample the sealing gas. The gas passing through the sampling and analysis instrument can be charged to the electrical apparatus or the gas tank timely to realize the effective sampling of the measured gas, thus benefiting environmental protection and avoiding the economic loss.

The invention relates to a manipulator of a high-altitude live working vehicle, which belongs to the field of special vehicles. The manipulator comprises a base and two manipulators, wherein each manipulator comprises a rotating platform, an insulation part, a lower arm, a middle arm, an upper arm, a small arm, a tail end mechanism, and hydraulic cylinders of the middle arm, the upper arm, the small arm, and the tail end mechanism; the lower arm and the middle arm, as well as the middle arm and the upper arm, and the upper arm and the small arm are hinged; the small arm is connected with the tail end mechanism; the hydraulic cylinder of the middle arm is fixed on the rotating platform and is hinged with the middle arm; the hydraulic cylinder of the upper arm is hinged with the middle arm and the upper arm; the hydraulic cylinder of the small arm is hinged with the upper arm and the small arm; and the hydraulic cylinder of the tail end mechanism is connected with the small arm and the tail end mechanism. The tail end mechanism comprises a connecting bar, a paw, a crossbeam, a square dowel, and pincers mounted on the paw for taking, pressing and cutting wires, wherein the connecting bar is hinged with the hydraulic cylinder of the tail end mechanism and the paw; the paw is hinged with the crossbeam; and the square dowel is connected with the crossbeam and the small arm. When the manipulator is used for implementing high-altitude live working, the working safety can be guaranteed and the automation level can be improved.

The invention provides an unmanned aerial vehicle autonomous obstacle avoidance inspection path planning method and device, and belongs to the field of unmanned aerial vehicle inspection, and the unmanned aerial vehicle inspection path planning method comprises the steps: building a three-dimensional model of an inspection region, wherein the three-dimensional model comprises the point cloud dataof equipment in the inspection region; determining a three-dimensional inspection safety area according to the three-dimensional model and a no-fly strategy; determining a first inspection target taskpoint set according to the inspection plan and the three-dimensional model; and establishing a first inspection path according to the three-dimensional inspection safety area, the first inspection target task point set and the unmanned aerial vehicle information. According to the embodiment, absolute safety of the unmanned aerial vehicle during inspection can be guaranteed, the method has the characteristic of small calculation amount, the inspection path can be planned quickly, accurately and automatically, so that the unmanned aerial vehicle is feasible in the inspection area, obstacles areprevented from being collided, and flight safety and flight efficiency of inspection operation of the unmanned aerial vehicle in the inspection area are improved.

The invention relates to a thermoplastic elastomer, which comprises the following compositions by gross weight percentage: A. 5 to 85 percent of polypropylene; B. 5 to 90 percent of vinylated styrene hydrogen/ conjugated diolefine segmented copolymer; and C. 5 to 90 percent of polyolefin thermoplastic elastomer. The preparation method is to physically mix mixture of various compositions for manufacturing transparent coating materials and so on. The thermoplastic elastomer has the advantages that the thermoplastic elastomer has good transparency, does not contain plasticizer such as processing oil and so on, so that emigration of the thermoplastic elastomer during the use process is avoided, thereby guaranteeing the absolute safety of the thermoplastic elastomer when applied to products such as foodpack, medical appliances and so on; the product is soft; the shore A rigidity is between 0 and 95; the flow rate of fused masses is between 0.1 and 100 grams per 10 minutes; and the thermoplastic elastomer has good weathering resistance, chemical resistance and solvent resistance.

The invention discloses a security pre-encoding method of a multi-user opposite end-to-end relay system. Multi-user interference can be eliminated from corresponding target nodes of relay nodes by virtue of differences of channels by using a pre-encoding signal processing techniques, and zero-forcing processing is implemented in an eavesdrop node direction, so that information security transmission is achieved. On the other hand, multi-user interference is eliminated, information disclosure is prevented, detection complexity of a target node receiver is degraded, and security transmission of information is ensured. On the other hand, main complexity is integrated in a fixed facility relay, hardware requirements of a mobile user is simplified, moreover, as only simple addition and multiplication operation is implemented by the relay nodes to received signals, the security pre-encoding method is simple in hardware achievement and relatively good in practicability.

The invention relates to a method for processing suspension top by medium-deep hole blasting on upper and lower shoes, comprising the steps of: simultaneously tunneling two drilling connection tunnels, on a tunnel upper shoe and a tunnel lower shoe of an electric shovel discharging tunnel, perpendicularly passing through a mineral vein; after the drilling connection tunnels pass through the mineral vein, tunneling two medium-deep hole drilling tunnels which is in parallel with the electric shovel discharging tunnel, faces towards the direction of the suspension top part, and is perpendicularly connected with the drilling connection tunnel, wherein the medium-deep hole drilling tunnels are tunneled exceed the suspension top part; performing construction of medium-deep holes in the two drilling tunnels towards the suspension top part according to the data for ore bring-down through blasting, such as row distance of 1-1.5m and hole bottom distance of 1-1.5m; drilling holes in each row; loading explosive in the medium-deep holes by a explosive loading machine; performing millisecond blasting by a millisecond detonator; and thereby breaking the suspension top by one-time blasting. Themethod for processing suspension top by medium-deep hole blasting on upper and lower shoes has the advantages that the deslagging is performed by the electric shovel, so that the labor intensity is small and the construction efficiency is high; operation is not performed on the tops of gobs so that the operation is ensured to be absolutely safe.

The invention provides a rapid ventilation and smoke exhausting device for a construction period of a long-distance tunnel. The rapid ventilation and smoke exhausting device comprises a gantry bracket, a fixed wind door and a movable wind door, an axial flow ventilator and a jet flow draught fan, and a motor control system, wherein the fixed wind door is arranged at the upper end of the gantry bracket and the movable wind door is arranged on one side of the gantry bracket; the axial flow ventilator and the jet flow draught fan penetrate through the fixed wind door; the fixed wind door is matched with the unfolded movable wind door so that the axial wind flow in the tunnel is separated; a wind inlet of the axial flow ventilator and a wind outlet of the jet flow draught fan are formed in one side, which is close to a working surface, of the fixed wind door; the wind outlet of the axial flow ventilator is connected with a flexible wind barrel; the wind outlet of the flexible wind barrel extends to the outer part of the tunnel. According to a ventilation and smoke exhausting method provided by the invention, the wind doors for separating the axial wind flow are arranged in the tunnel; a safe space and a closed polluted space are formed on the two sides of the wind doors respectively, and pollutants in the polluted space can be discharged out of a hole along an airflow through a closed exhausting channel by using ventilation equipment; blasting equipment is used for blasting wind into the polluted space from the safe space so that the pollutants rapidly flows towards the inlet of the ventilation equipment.

The invention discloses an information transmission encryption method based on combination of a national secret algorithm and a quantum communication technology. The method comprises the steps that: the encryption method is realized based on an optical communication network; a quantum key distribution device is arranged at the optical communication transmitting end; data transmitted by optical communication is subjected to quantum key encryption through the quantum key distribution device; furthermore, sender and receiver information of transmission information is subjected to national secretalgorithm encryption; sender address information decryption is carried out at first when a receiver decrypts the received information; and, a quantum key decryption channel is provided for transmission data decryption after sender information is decrypted. According to the method in the invention, transmission information encryption is carried out by adoption of the quantum key; the sender and thereceiver can perform secret communication; this is the first layer of encryption; furthermore, communication address information of the sender and the receiver is subjected to national secret algorithm encryption; stealing of local data after source data is tracked and the receiver receives information can be avoided; and thus, the secret information data transmission security is ensured better.

The invention provides a hand-held ground station for an unmanned aerial vehicle and a surveying and mapping and positioning method thereof. The method comprises the following steps: receiving a surveying and mapping point positioning request instruction, and recording and keeping the surveying and mapping point positioning request instruction; according to the surveying and mapping point positioning request instruction, calculating a ground station coordinate through an RTK base station and a satellite, wherein the ground station coordinate is a surveying and mapping point position coordinate; carrying out one-to-one correspondence integration on the calculated position coordinates and surveying and mapping point positioning requests and keeping the integration results locally; and sending the integration results to the unmanned aerial vehicle and a background server. According to the unmanned aerial vehicle ground station, through RTK positioning, positioning accuracy of the surveying and mapping point, a landing point when the unmanned aerial vehicle returns and safety distance during flight is improved; and besides, through surveying and mapping of the ground station, the ground station can carry out pre-spray surveying and mapping instead of a conventional hand-held surveying and mapping rod, and plant protection work can be finished without uploading the surveying and mapping result to the background server, thereby reducing requirement for an environment network.

Disclosed is a mechanical hand of a high-altitude electrified operating vehicle. The mechanical hand manly comprises a base, insulation mechanisms, rotating platforms, mechanical arms, hydraulic mechanisms, mechanical arm ends, special fixtures and the like. Cutter changing devices are added at the mechanical hand ends specific to different working contents. It is favorable for improving the efficiency of electrified operating. Meanwhile, a wire pressing clamp mode is adopted to connect a wire, so that wire connection is safe and reliable. The master-follower control type mechanical hand of the high-altitude electrified operating vehicle has the advantages of simple structure and higher efficiency, and is suitable for the current situation of the high-altitude electrified operation in China.

A security chip for protecting a network security system comprises a data security part for providing a secure encryption and decryption algorithm and an interaction protocol, wherein the data security part mainly comprises an encryption and decryption algorithm control engine, an authorization counter, a true random number generator, a unique serial number and a secure EEPROM; and a network security part composed of a network white list filtering module and a network data processing module. The encryption and decryption algorithm control engine comprises private key security storage for supporting private key ECDH operation and ECDSA signature authentication. The mainstream national password and commercial password encryption and decryption algorithms perform high-speed encryption and reduction on the data stream so as to adapt to the security requirements of different scenes. The chip safety management supplies power, manages the read-write ROM on the chip, allows special equipment to write, and allows remote erasure but does not allow reading. The invention also provides a network security system using the security chip. The sensitive data communication security can be protectedfrom the hardware level, and the efficiency can be greatly improved while the system security is improved.