42results about How to "Safeguard requirements" patented technology

The invention discloses a novel urban rail transit signal ATS system based on cloud platform. The system builds a central level ATS system cloud platform, and based on the central level ATS system cloud platform, two level systems are built, the two level systems respectively are a central level ATS system and a station level ATS system; the central level ATS system realizes the monitoring, the management and the traffic control of the train running on all lines; the station level ATS system receives instructions of the central level ATS system, and realizes the monitoring and the management of train operation in the station area; the station level ATS system includes station local equipment and station level virtual equipment built based on the central level ATS system cloud platform; thecentral level ATS system cloud platform includes a main center cloud platform and a disaster preparedness center cloud platform; the main center cloud platform, the disaster preparedness center cloudplatform and the station local equipment are connected each other. The system adopts the cloud platform architecture, realizes the maintenance and the unified management of multi-line operation, improves the operation efficiency, and reduces the equipment cost.

The invention discloses a hyper-high purity extracting technology of natural graphite, which comprises the following steps: (1) putting natural graphite in the container to do oxidizing disposal with low-middle carbon content more than 98%; (2) fusing at high temperature; (3) inputting in the metal erosion-proof container; proceeding dealkalization; (4) deacidifying to wash to neutral; (5) proceeding electromagnetic black metal removing disposal in the floating pool; (6) heating in the autoclave from 118 deg, 206 deg and 220 deg separately; (7) using pure water to dispose; (8) dehydrating; (9) drying until the water content is less than 0.1%.

The invention discloses a support lifting double-layer sedan with convertible single-layer and double-layer spaces. The support lifting double-layer sedan comprises a chassis, a box, a casing, a power telescopic shaft lever system, a guide balance mechanism, a sealing mechanism and a plurality of locking snap-in mechanisms, the box is fixed onto the chassis, the casing is arranged on the box and connected with the box through the power telescopic shaft lever system and the guide balance mechanism, the casing, a top plate and an overskirt of the box jointly form an upper movable space, the power telescopic shaft lever system is used for supporting and folding the casing, the guide balance mechanism is mounted between the casing and the box, so that the casing can smoothly run in the supporting and folding process, the sealing mechanism is arranged between the casing and the box, and the locking snap-in mechanisms are arranged on the side walls of the box and the casing. Compared with a traditional mode, the use area in the sedan is doubled, and the support lifting double-layer sedan is stable to fold, safe to use and fine in sealing performance.

The invention discloses a method for intercepting, encrypting and decrypting data. When the data is transmitted from a client to a server, the sensitive data is encrypted and then leaves off an intranet. When the data is transmitted from the server to the client, the data enters the intranet, and the encrypted data is decrypted so as to obtain the sensitive data. The invention also discloses a system for intercepting, encrypting and decrypting the data. The method and the system have the advantages that the protection, management and control requirements of applicable intranet users on the sensitive data in the governments, enterprises and the like can be ensured, and the safety is higher.

A zoom lens unit comprises, from the objective side to the image side, a fixed lens group of negative focal power, an aperture diaphragm, a zoom lens group of positive focal power, a fixed lens of negative focal power, a focus lens group of positive focal power and an optical filter; the zoom lens group is moved along an optical axis from the image side to the objective side so as to achieve zooming from a wide end to a telescopic end, the focus lens group is moved along the optical axis to achieve variable image side correction and focusing with zooming. The zoom lens unit has the advantagesof light weight, small size, wide angle, multiple zooming in short range, zero distortion, macro shooting and the like.

The invention discloses an improved key distribution method in a large-scale layered wireless sensor network, relates to the technical field of a wireless ad hoc network, and specifically relates to an improved key distribution scheme for establishing the safe layered wireless sensor network. For the problem that the key storage and communication overheads of the traditional key pre-distribution mechanism are relatively high, the invention provides the method of ensuring complete network connection by employing the improved key distribution scheme. The wireless sensor network is usually deployed in a hostile environment and an unmanned operation mode, and therefore, in order to protect sensitive data and sensor reading, a secret key should be applied to encryption of exchange information between communication nodes. According to the method, a layered network mode and a bivariate polynomial key generation scheme are employed, no matter how many sensors are damaged, through adoption of the IKDS (Improved Key Distribution Scheme), a unique paired key is ensured to be established between two communication parties. According to the improved key distribution scheme, the key storage and communication overheads are reduced, the security is improved, and the integral stability of the network data transmission is improved. The method is applicable to the technical field of the large-scale layered wireless ad hoc network.

The invention discloses an environment-friendly high-phosphorus chemical nickel plating solution for an airtight glass-sealed binding terminal. The environment-friendly high-phosphorus chemical nickel plating solution comprises the following active ingredients according to concentration: 25-27g / L nickel sulfate, 19-22g / L sodium hypophosphite, 20-23g / L sodium hydroxide, 41-44g / L lactic acid, 1.5-2.3g / L trisodium citrate, 13-15g / L malic acid, 8-12g / L glycine, 0.2-0.4ml / L OP-10, 0.26-0.3g / L stannous chloride, 0.26-0.34g / L maleic anhydride and 3-5mg / L N,N-diethylaminopropyne. The invention discloses a method for performing chemical plating by adopting the chemical nickel plating solution. A stainless steel needle and an iron cover can be simultaneously subjected to chemical nickel plating and be evenly plated, no nickel nuclear generated on sintered glass can be guaranteed, and the difficulty in keeping the smoothness and cleanness of the surface of glass can be solved.

The invention discloses a semi-submersible type lifting and disassembling platform and a control method thereof. The platform comprises a port floating body, a starboard floating body, two port stand columns, two starboard stand columns and a deck box, wherein the port floating body and the starboard floating body are each internally provided with a plurality of common water ballast tanks and a plurality of rapid water ballast tanks; the top of the rapid water ballast tank is communicated with a compressed air ballast system, column side water ballast tanks are arranged in the port stand column and the starboard stand column respectively, and the tops of the column side water ballast tanks are communicated with the compressed air ballast system. And water pump ballast systems are arranged on the common ballast water tanks, the rapid ballast water tanks and the column side ballast water tanks. The invention further discloses a control method of the platform. The safety of the platform and workers is ensured to a great extent; a set of emergency response system is established, and what is guaranteed is that when the platform encounters sudden failures in open-sea operation, platform operation command is smooth in real time, emergency rescue is rapid and accurate, and staff deal with the emergency rescue orderly and safely.

The present invention discloses a connector and an assembly process thereof. The connector comprises a male end side and a female end side. The male end side comprises pins, a first plum positioning member with the side-mounted arrangement of the pins, a male end positioning member which fixes the pins to the first plum positioning member, a first self-tapping screw which locks the male end positioning member and the first plum positioning member, and a male end shell. The female end side comprises jacks, a second plum positioning member with the side-mounted arrangement of the jacks, a female end positioning member which fixes the jacks to the second plum positioning member, a second self-tapping screw which locks the female end positioning member and the second plum positioning member, and a female end shell. The pins of the male end side and the jacks of the female end side are connected to form a connector. According to the connector the scheme, the reliable positioning of the pins and the jacks are ensured, the exposed size of the pins is guaranteed, the electrical performance is guaranteed, since pin and jack positioning connection structures are simplified, and thus the connector assembly process has the advantages of simple steps and high assembly precision.

The invention relates to a power allocation method in a cognitive radio network (CRN) and application thereof in a smart transportation network, belonging to the technical field of radio communication. The technical solution comprises steps of acquiring non-ideal channel state information through a non-blind channel estimation method; setting an interference power threshold which ensures that primary user communication is not affected by secondary users; constructing a robustness optimization problem by using a safe, effective capacity as a target function and a power limit as a constraint, resolving an optimal dual factor through a Lagrange duality theory, so as to resolve an optimal transmit power to realize optimal power allocation; and transmitting data by secondary users according toan allocated power. The method enables the safe cognitive radio network to meet the QoS requirement of user statistics delay, and has advantages of low calculation complexity and high channel adaptability, thereby having important theoretical and practical significance.

The invention discloses a data interception and conversion method. The method includes the steps that when data are transmitted from a client to a server, sensitive data are replaced by non-sensitive data, then the non-sensitive data leave an intranet, and when the data are transmitted from the server to the client, the non-sensitive data are restored into the sensitive data after entering the intranet. Therefore, the invention further discloses a data interception and conversion system. The data interception and conversion method and system can guarantee requirements of intranet users such as governments and entrepreneurs involving sensitive data for protecting and controlling the sensitive data, and very high safety is achieved.

The invention belongs to the technical field of intelligent catering, and discloses an intelligent ordering system and an intelligent ordering method capable of tracking and checking in real time. Theintelligent ordering system comprises an ordering unit, an information processing unit and an order completion unit. The ordering unit and the order completion unit are in communication connection with the information processing unit. The intelligent ordering method comprises the following steps: receiving a current ordering instruction; obtaining order information and a corresponding order completion unit; if the order confirmation information exists, generating and outputting a meal making identification code and meal information corresponding to the current order information; and if the order completion instruction exists, generating and outputting a meal product packaging identification code corresponding to the current meal product making identification code. According to the invention, real-time information checking of meal product making is realized, and an order maker can check the ordered meal product making process and the packaging process after meal product making in realtime, so that the order maker can have enough right to know meal product making, the food safety is ensured, and the system and method are suitable for popularization and application.

The invention discloses a subway station public area environmental control system. The subway station public area environmental control system comprises an equipment large-end environmental control machine room, an equipment large-end smoke exhaust fan, an equipment large-end exhaust shaft, an equipment small-end environmental control machine room, an equipment small-end smoke exhaust fan, an equipment small-end fresh air shaft and an equipment small-end exhaust shaft. A subway station public area is connected with the equipment large-end environmental control machine room and the equipment small-end environmental control machine room through public area air supply pipes, and station hall air supply and platform air supply are achieved; an equipment large-end public area air return pipe isconnected with the equipment large-end smoke exhaust fan and the equipment large-end environmental control machine room, and station hall air return and smoke exhaust and platform air return and smoke exhaust are achieved; and an equipment large-end public area air return / exhaust pipe is connected with the equipment small-end smoke exhaust fan and the equipment small-end environmental control machine room, and station hall air return / exhaust and smoke exhaust and platform air return / exhaust and smoke exhaust are achieved. According to the subway station public area environmental control system, outdoor fresh air is treated through a combined air conditioner box in the small-end environmental control machine room and is fed into the public area, the area of a large-end fresh air shaft is reduced, and the influence of a ventilation pavilion on the ground landscape is reduced.

The invention relates to a mounting method of a modularized steel structure. The mounting method comprises the following steps of binding ground beam reinforcing steel bars and supporting formworks on a foundation to obtain a plurality of foundation cells; upwards binding cup rabbet reinforcing steel bars at the intersections of the foundation cells and erecting a formwork to obtain a cup rabbet reinforcing steel bar cage base and a cup rabbet reinforcing steel bar cage, arranging a column foot positioning bottom plate and a column foot side wall mounting plate, and then erecting the formwork; after the elevation of the column foot positioning bottom plate is rechecked, pouring concrete into a ground beam steel bar cup opening steel reinforcement cage base, and completing construction of a ground beam and a cup opening base; finishing floor construction; placing a steel structure column in the cup opening; mounting bottom-layer connecting beams between the steel structure columns to form a first-layer frame, and mounting the cross beams layer by layer to form a multi-layer frame structure. According to the method, simultaneous construction of the cup opening column foot and the floor can be achieved, the steel structure column does not need to be divided, the stability of the steel structure column in the installation process is improved in a cup opening mode, the installation safety risk is reduced, and the finished product protection difficulty is greatly reduced.

The invention discloses a method for degrading methylene blue adsorbed in particles under solar illumination through titanium dioxide and belongs to the technical field of titania photocatalysis. The method is characterized by comprising the following steps that (1) a phosphoric acid solution is dropwise added into an aqueous solution containing citric acid and calcium hydroxide, hydroxyapatite is prepared, the hydroxyapatite is added into a solution containing the methylene blue, and a hydroxyapatite colloidal solution containing the methylene blue is prepared; (2) butyl titanate, nitric acid and polyethylene glycol are sequentially added into a mixed solution of ethyl alcohol and water, tartaric acid is added after water heating treatment, and a titanium dioxide solution is prepared; and (3) the titanium dioxide solution and hydroxyapatite colloidal solution containing the methylene blue are mixed and stirred, mixed particles are obtained through centrifugation and drying, and the methylene blue adsorbed in the particles can be degraded under solar illumination of 7-42 hours. According to the method, the process is simple, raw materials are low in cost, and industrial production is easily achieved. Degrading of the methylene blue can be achieved under solar illumination, and the degrading speed is high.

The invention relates to a marine diesel engine power station integrated arrangement method. A plurality of diesel generating sets are arranged on the upper portion of a cabin buoyant raft side by side; auxiliary equipment is distributed and hung on the side of the cabin buoyant raft; system pipelines of diesel oil, lubricating oil, cooling water and compressed air are intensively arranged in a reserved space at the lower part of the cabin buoyant raft; and container type equipment is arranged in the lower space of the cabin buoyant raft. The integral type diesel engine power station buoyant raft is utilized, a plurality of diesel generator sets are arranged on the upper portion of the integral type buoyant raft in parallel, diesel generator auxiliary devices such as pumps and filters are evenly distributed and hung on the side of the integral type buoyant raft, and a diesel lubricating oil tank, an air bottle and a system pipeline are arranged on the lower portion of the integral type buoyant raft in a centralized mode. An oil-water-gas pipeline for connecting an auxiliary engine with a diesel engine is rigidly supported and hung on a buoyant raft accessory structure, so that the integrated arrangement of a plurality of diesel generator groups, equipment and pipelines share cabin buoyant raft is realized.

The invention relates to an air circulation purification machine. The air circulation purification machine is energy-saving, environment-friendly and pollution-free, and comprises an air circulation purification machine shell, an air inlet pump, a motor, a filter chamber, a processor, a drainage system and an exhaust pump, the filtering chamber is arranged on the air circulation purification machine shell, and the processor is arranged in the filtering chamber; the processor internally communicates with an air inlet pump, and the processor is composed of filter cloth and an acid gas neutralization filter layer; an exhaust shell is arranged at a certain distance from the air circulation purification machine shell, and the exhaust shell internally communicates with the air exhaust pump in apositioning connecting mode; and a pipeline is arranged on the exhaust shell and communicates with an indoor exhaust pipeline.

The invention discloses a microbial agent capable of preventing both root knot nematode disease and clubroot and a preparation method of the microbial agent, and relates to the technical field of fertilizers. The technical problems that in the prior art, field symptoms of the root-knot nematode disease and the clubroot disease are similar, rapid distinguishing and accurate medicament selection are difficult, and the root-knot nematode disease and the clubroot disease easily occur at the same time and are difficult to prevent and control in time are solved. The preparation method of the microbial agent for preventing both the root knot nematode disease and the clubroot disease comprises the following steps: preparing bacillus methylotrophicus powder and bacillus subtilis powder; preparing paecilomyces lilacinus powder; and compounding the prepared bacillus methylotrophicus powder, paecilomyces lilacinus powder and bacillus subtilis powder in proportion, and uniformly mixing to obtain the microbial agent capable of preventing both the root knot nematode disease and the clubroot disease. The prepared microbial agent for simultaneously preventing the root knot nematode disease and the clubroot disease can be used for uniformly preventing and controlling the two diseases, and the situation that the golden period of early prevention and control is delayed due to wrong medicament selection in agricultural production is avoided.

The invention discloses a composition for reducing postprandial blood sugar level in a gestation period and a preparation method of the composition, and relates to the technical field of blood sugar reducing compositions. The composition for reducing the postprandial blood sugar level in the gestation period is prepared from the following raw material components in parts by weight of 60-80 parts of rice flour with suitable sugar amount, 15-25 parts of rice protein, 3-9 parts of konjac glucomannan, 5-10 parts of Chinese yam powder, 5-10 parts of lotus seed powder and 1-3 parts of stevioside. The rice with suitable sugar amount is a new rice variety, namely Gongmi No.3. The preparation method of the rice flour with suitable sugar amount comprises the following steps of S1, selecting high-quality rice with suitable sugar amount, and performing impurity removal and crushing to obtain raw flour; S2, adding clear water into the raw flour, stirring to obtain rice milk, standing, sealing, heating, cooking and cooling to obtain cooled rice milk; and S3, enabling the cooled rice milk to be subjected to spray drying, and preparing the rice flour with suitable sugar amount.

The invention discloses an industrial circulating cooling water system and an energy-saving operation method thereof. The system comprises a cooling tower, a first water pump, a first valve, tail end process equipment, a low-level water tank, a second water pump and a second valve which are sequentially connected in series through a pipeline closed loop, a water distributor with one end communicating with a water inlet pipeline of the cooling tower is arranged at the top in the cooling tower, a filler is arranged below the water distributor, a fan is arranged over the cooling tower, the two ends of a rotating shaft of the fan are connected to a servo motor and a water turbine correspondingly, the high-level water tank is arranged above the cooling tower, the bottom of the cooling tower sequentially communicates with a third water pump, a third valve and the top of the high-level water tank through pipelines, the bottom of the high-level water tank communicates with a water inlet pipeline of the water turbine through a pipeline, a fourth valve is arranged on a communicating pipeline between the high-level water tank and the water turbine, and an outlet of the water turbine communicates with the bottom of the cooling tower through a pipeline. The industrial circulating cooling water system and the energy-saving operation method thereof are stable, reliable, simple and convenient to operate and good in energy-saving effect, and local weather and geographical conditions can be fully considered.

The invention provides an error correcting method for the uniform angle index of a large spliced plate. The method is used to detect and control the uniform angle index of the large spliced plate, and provides a technical scheme. Whether a prism or isosceles trapezoid phenomenon or a size deviation phenomenon exists in the plate is determined by utilizing the Pythagorean theorem, a unique point is determined via the fixed size of a right angled triangle, the relative position of the large spliced plate is adjusted, technical processing can be carried out before completion of plate splicing, and it is ensured that a qualified large spliced plate is provided for subsequent procedures. The method is easy to understand and simple in operation; problems in the uniform angle index of the spliced plate can be timely discovered; solution measures can be adopted timely and effectively; the problems that aligning lines and examination lines which are marked after plate splicing and used for subsequent procedures deviate with deviation of the edge lines of the plate and that the precision of the subsequent procedures is hard to control are solved; and the construction quality of the link is ensured.

The invention discloses a multi-mode mine wireless communication gateway and a switching method. The gateway comprises a mixing type coupler, a 4*4 light switch matrix, a summing circuit, a gateway processing unit, an SISO / MIMO access module, a protocol conversion module, a router transfer module, a wireless interface module, a light interface and a bus interface. In the gateway, a WCDMA wireless air interface, a WiFi wireless air interface, a TD-LTE wireless air interface and a WiMAX wireless air interface are configured to output SISO signals and MIMO signals respectively, WCDMA service data, WiFi service data, TD-LTE service data and WiMAX service data after being converted by the protocol conversion module are transferred to corresponding heterogeneous networks through the router transfer module, and inter-network switching is triggered. According to the multi-mode mine wireless communication gateway, a multi-mode working mode is adopted, channel capacity is large, disturbance resistance is high, the requirements for a mining specific service environment and safety are met, and the gateway is suitable for mobile communication and mobile monitoring of the heterogeneous networks like the WiMAX network, the WiFi network, the TD-LTE network and the WiMAX network under mines, and quick switching of mine underground mobile terminals in the heterogeneous networks is guaranteed.

The invention is suitable for the technical field of sewage treatment, and provides a sewage treatment filter. The sewage treatment filter comprises a rack as well as a filter structure and a pressingstructure which are sequentially connected onto the rack, wherein the rack comprises two beams which are arranged in parallel; the filter structure comprises an adsorption separation bag and a plurality of filter plates; the adsorption separation bag comprises at least two filter layers, and every two adjacent filter layers form a sealed area which is of a ring-shaped closed structure; the ring-shaped closed structure is enclosed to form a filling area; the sandwich layer of the filling area is filled with an adsorption material; a fixed area is formed on the outer part of the ring-shaped closed structure; and the pressing structure comprises a piston rod, the two ends of the piston rod are separately connected with a pressing plate and a drive structure, and the drive structure is electrically connected with a control cabinet. The sewage treatment filter can integrate solid-liquid separation and harmful ion removal, further has the functions of adsorbing and filtering, is convenientto clear, and is low in manufacturing cost.