3515 results about "Cost performance" patented technology

There is provided a backside protective sheet for a solar battery module that is excellent in strength as well as in various properties such as weathering resistance, heat resistance, water resistance, light resistance, wind pressure resistance, hailstorm resistance, chemical resistance, moisture resistance, antifouling properties, light reflectivity, light diffusivity, and design, and is particularly excellent in the so-called “moisture resistance,” which is the ability to prevent the entry of moisture, oxygen and the like, and durability against performance degradation with time, particularly against hydrolytic degradation and the like, and is also excellent in protective capability. There is also provided a backside protective sheet for a solar battery module, which can facilitate inventory control by properly using the front side and back side of the protective sheet depending upon applications and is excellent in cost performance, and a solar battery module using the same. The backside protective sheet for a solar battery module comprises: a deposited assembly comprising a vapor-deposited film of an inorganic oxide provided on at least one side of a substrate; and a transparent or translucent heat-resistant polyolefin resin layer provided on both sides of the deposited assembly.

The invention relates to a lithium-ion secondary battery anode material technology, in particular to a lithium-rich manganese-based anode material Li(Li(1-2x)/3Nix-aMyMn(2-x)/3-b)O2 (M is Co, Al, Ti, Mg and Cu) and a preparation method thereof. A general formula of the lithium-rich manganese-based anode material is as follows: Li(Li(1-2x)/3Nix-aMyMn(2-x)/3-b)O2 (M is Co, Al, Ti, Mg and Cu), wherein x is more than 0 and less than or equal to 0.5, when M is Co and Al, y is more than 0 and less than 2x, a is equal to b, and b is equal to y/2; when M is Ti, y is more than 0 and less than (2-x)/3, a is equal to 0, and b is equal to y; and when M is Mg and Cu, y is more than 0 and less than x, a is equal to y, and b is equal to 0. The invention has high specific discharge capacity, excellent normal temperature and high temperature cycle performance, good safety, low raw material cost and production cost, and very high cost-performance ratio.

The invention discloses a roadside parking space detection device based on computer vision, comprising an omnidirectional vision sensor and a microprocessor, wherein the omnidirectional vision sensor is installed at the roadside with parking spaces; the microprocessor is used for analyzing the parking space state according to the data of a parking space video shot by the omnidirectional vision sensor; and the microprocessor comprises an omnidirectional image acquisition unit, a parking space customizing module, a parking space state detection module based on a sampling point model, and a parking space state information releasing module. The invention provides the roadside parking space detection device which is based on the computer vision, has the advantages of wide detection range, high detection precision, good detection instantaneity, high cost performance, strong environmental adaptation capability and good expandability and sustainable development, is convenient to implement and maintain and is convenient to realize on an embedded system.

The invention discloses a distributed storage oriented cloud storage security architecture and a data access method thereof. The distributed cloud storage oriented security architecture comprises a cloud storage server, a distributed storage manager, a wafer breaker and storage devices, wherein the distributed storage manager and the cloud storage server are respectively connected with a client-side; the distributed storage manager and the cloud storage server are connected by a fiber channel (FC) or a routing switch; the wafer breaker is imbedded in the distributed storage manager; the distributed storage manager is connected with the storage devices by the FC or Iscsi; and the storage devices are connected by a network attached storage (NAS) or a storage area network (SAN). The storage devices are located at different places and are redundant mutually, thus improving the fault-tolerant ability of the devices and the optimal storage use ratio; the wafer breaker is used for carrying out fragment on stored data, so that the data are fragmented into data fragments which can not be identified by other authentication systems, and the fragmented data have relative confidentiality and security in the process of network transmission and data storage; and the storage devices and the server are the devices with higher cost performance, thus reducing the cost.

The invention specifically relates to a mass tuned vibration reducer used for regulating the subsidence ratio of the vibration of the related structures. The mass tuned vibration reducer comprises a mass block, a spring, a damper and a base, and is characterized in that the damper is an adhesion-type damper formed by a damping cylinder, adhesive damping fluid and a piston, wherein, the piston and the adhesive damping fluid are arranged in the damping cylinder, and at least part of the piston is immerged into the adhesive damping fluid. The mass tuned vibration reducer adopts the adhesion-type damper formed by the adhesive damping fluid and the piston and can provide three dimensional damping, so as to effectively prevent side tumbling and ensure the vibration reducer realizes smooth actions; vibration mass is not needed to be provided with a special guide device, so that the mass tuned vibration reducer has reliable work and higher cost performance, and basically needs no maintenance. Meanwhile, the mass tuned vibration reducer realizes the aim of regulating the natural frequency and the subsidence ratio at any time, thus better exerting the vibration absorption performance of the mass tuned vibration reducer, ensuring stableness and safety of the pedestrians and vehicles on the large-span bridge and the thin and high building, contributing to prolonging the service lives of the thin and high building and the bridge, and having remarkable economic and social benefits.

A semiconductor device includes an electrical insulating layer with superior heat resistance, heat dissipation, and durability, and which is manufactured through a process with good cost performance and process performance. In a semiconductor device including a first substrate to which a semiconductor chip is mounted directly or indirectly, and a white insulating layer formed on a surface of the first substrate and functioning as a reflecting material, the semiconductor chip is an LED, at least the surface of the first substrate is made of a metal, and a stacked structure of the white insulating layer and a metal layer is formed by coating a liquid material, which contains SiO₂ in the form of nanoparticles and a white inorganic pigment, over the surface of the first substrate and baking the coated liquid material.

The invention relates to a management method of a multifile copy of a distributed file system. A copy management mechanism based on a frequency is adopted, the state of a file copy is changed according to the read-write access frequency of the file and the information trend of an access resource, and the position transference is increased/reduced and stored through the trend of the quantity of the file copy. The management method includes copy grading management, copy creating policy, copy selection and orientation, and a copy consistency maintenance method. The creating method of the file copy includes the creating initiated by the user and the creating initiated by a crunodes, and adopts a data gridding method and a policy based on the benefit drive. The orientation of the copy maps a logic file on an appropriate copy, and a copy with minimum cost and highest access efficiency is selected to be provided to the user for using. The invention has the advantages that the provided service carries on the excellent characteristics of the distributed file system, which includes loose coupling, high usability, high reliability and high cost performance.

Disclosed is a spark-ignition gasoline engine, which comprises control means operable, when an engine operation zone is a high-load operation zone including a WOT region within at least a low speed range, to adjust a closing timing of an intake valve in such a manner as to maintain an effective compression ratio at 13 or more, and retard an ignition timing to a point within a predetermined stroke range just after a top dead center of a compression stroke, wherein the effective compression ratio is calculated based on an intake-valve closing timing defined by a valve lift amount of 1 mm. The present invention can provide a spark-ignition gasoline engine having both a low-cost performance and a high engine-power performance even in a high-load operation zone (particularly WOT region) in a low speed range.

The invention discloses a load balancing method and system facing mixed cloud application and a corresponding mixed cloud load balancing system. Aiming at the fact that a cloud tenant uses mixed clouds to calculate IaaS (infrastructure as a service) platform deployment application, the invention solves the problem of load balancing of the application under a multi-cloud environment. The system and method use a layered load balancing mechanism, load state information and resource state information of private clouds and public clouds are dynamically collected by a heartbeat packet at an upper layer, and issuing priorities of tasks to respective clouds are adjusted; at a lower layer, and LBaaS (load balancing as a service) internally provided form the clouds is used to perform load balancing among virtual machines. During outbreak of the cloud application, the public cloud with the highest cost performance can be selected for resource extension according to price fluctuation of the public clouds and the requirement of the cloud tenant on the minimal cost budget. According to the invention, the cloud tenant can be helped to customize application requirements per se when using the mixed clouds, and automatically select a cloud resource use scheme with the highest cost performance.

The invention, belonging to the technical field of universal plastics modification, discloses a polypropylene composition and a preparation method thereof. The polypropylene composition disclosed herein comprises the following ingredients: 38.5-95 weight parts of polypropylene, 5-25 weight parts of toughening agent, 0-35 weight parts of inorganic filler, 0-0.5 weight parts of lubricant, 0-0.5 weight parts of light stabilizer, and 0-0.5 weight parts of antioxidant. The preparation method disclosed herein comprises the following steps: adding 38.5-95 weight parts of polypropylene, 5-25 weight parts of toughening agent, 0-35 weight parts of pretreated inorganic filler, 0-0.5 weight parts of lubricant, 0-0.5 weight parts of light stabilizer, and 0-0.5 weight parts of antioxidant in a high mixing machine to mix for 5-10 min; adding the mixture in a double-screw extruder from the charging hole, and granulating. According to the invention, under the condition of keeping excellent comprehensive performances, the polypropylene composition disclosed herein has low production cost, high cost performance, and strong competitive power on the market, and can be widely applied in the material fields of auto-inner ornaments, door sheets, bumpers, liners and shells of household appliances, etc.

The present invention discloses an air conditioner automatic control switch with energy-saving function and control method and thereof, the air conditioner automatic control switch comprises a micro-processor, a human body sensing component connected with an input pin of the micro-processor, a temperature sensor connected with an input pin of the micro-processor, an infrared ray receiving set, a power failure protection storage device connected with the micro-processor by a despotic synchronization serial port, an infrared ray transmitting device connected with an input pin of the micro-processor, a toggle switch group, an underpressure early warning equipment and a power source equipment for supplying electric voltage to the control switch. The present invention has the effects and advantages of low cost, high cost performance, good versatility, obvious energy-saving effect, convenient use, good independency, high security, and intelligentized air conditioning control, thereby insuring automatic closing air conditioner under unmanned circumstance and generating considerable energy-saving effect.

The invention discloses a traffic anti-rut asphalt modifier and a preparation method thereof; the asphalt modifier is prepared from the following components in parts by weight: 20 to 200 parts of thermoplastic elastomer, 5 to 450 parts of polyolefin, and 5 to 400 parts of rubber powder. Simultaneously, the invention also discloses modified asphalt which contains the asphalt modifier and application of the modified asphalt in asphalt mixture. The invention can significantly improve the high-temperature performance and the anti-rut capability of the asphalt mixture, improves anti-water damage and anti-low temperature cracking and other performance, and has high cost performance. Compared with asphalt modification, the invention does not need to add asphalt modification equipment, can significantly reduce energy consumption and loss in the production process, can realize long-termed inventory, prevents the problem of the poor storage stability of modified asphalt, does not affect the mixing proportion design, does not change the gradation of the asphalt mixture under any content, only finely adjusts the asphalt-aggregate ratio, has simple construction process, and realizes random adding through a direct feeding method.

The invention belongs to the field of intelligent traffic video image monitoring and video image analysis, and in particular relates to a method and a system for automatically identifying an urban traffic accident. The method for automatically identifying the traffic accident comprises the following steps of: acquiring an urban road video image sequence; performing foreground vehicle separation based on a mixed Gaussian background model; performing a multi-target vehicle tracing algorithm based on a Camshift algorithm and a kalman filtering combination; extracting traffic accident determiningparameters such as speed variation, horizontal position variation, vertical position variation, moving direction variation and the like; and proposing a multi-featured weighted fusion automatic accident identification algorithm. Traffic accident information is transmitted to a traffic control center in time by a transmission unit and a display unit, so that the traffic accident can be quickly treated, an effective and flexible road traffic monitoring means with high cost performance is provided for traffic management, and new thought is provided for the development of a high-efficiency intelligent video traffic accident system.

The invention belongs to the technical field of engineering plastic modification, and discloses a thermoplastic polyester composition and a preparation method thereof. The thermoplastic polyester composition is prepared from the following components by weight: 37-95 parts of thermoplastic polyester, 5-25 parts of a flexibilizer, 0-35 parts of an organic filler, 0-1 part of a coupling agent, 0-1 part of a lubricant, and 0-1 part of an antioxidant, wherein the thermoplastic polyester is selected from one or more than one of thermoplastic polyester resin or thermoplastic polyester reclaimed materials; the flexibilizer is selected from a flexibilizer 1 or a flexibilizer 2; when thermoplastic polyester is selected as the thermoplastic polyester, the flexibilizer is selected from one or more than one of flexibilizer 1 or a mixture of flexibilizer 1 and flexibilizer 2; when thermoplastic polyester reclaimed materials or a mixture of reclaimed materials and resin are selected as the thermoplastic polyester, the flexibilizer is selected from one or more than one of flexibilizer 1, flexibilizer 2, or a mixture of flexibilizer 1 and flexibilizer 2. The product of the invention maintains excellent comprehensive performance, and has very high cost performance.

The invention relates to a high-precision laser photocuring 3D (three dimensional) printer. The high-precision laser photocuring 3D printer comprises a shell and a pedestal. The high-precision laser photocuring 3D printer has the beneficial effects that one end of a high-precision ball screw is connected with a servo motor, the control precision of the servo motor is guaranteed by a rotary encoder at the rear end of a motor shaft and is accurate, and the high-precision laser photocuring 3D printer utilizes the servo motor, so that the printer is stable, and the energy consumption is reduced; as the ball screw has the characteristics of high positioning precision, small friction force, high rigidity and strong load capacity, the molding precision of the printer is high; a circuit control module is connected with a touch screen and a power supply switch respectively through data wires to intelligently control the printer, so that the control precision and processing efficiency are increased; a digital projection device comprises a digital projector horizontally fixed on the upper side of the pedestal, and a plane mirror, so that the structure of the printer is compact; the digital projection device comprises an ultraviolet source and a focusing lens, and the focusing lens is arranged above the ultraviolet source, so that the realizing theory is simple, and the cost performance is high.

The invention relates to a multifunctional data acquisition module based on a compact peripheral component interconnect (CPCI) bus. The multifunctional data acquisition module comprises a hardware module and a field-programmable gate array (FPGA) program. The hardware module comprises an impedance control circuit board, an electronic component, a small computer system interface (SCSI100) signal connection socket, a standard CPCI bus connector, and a standard 3UEurocard front panel. The impedance control circuit board and the electronic component are the core functional carriers of the invention and are divided into eight functional units such as an analogue-digital (AD) conversion module, a digital-analogue (DA) conversion unit, a timer unit, a counter unit, a universal input-output (IO) unit and an auxiliary circuit unit. The FPGA program comprises an AD conversion module, a DA conversion module, a timer module, a counter module and a universal IO module and is programmed and developed by Verilog hardware description language (HDL). The multifunctional data acquisition module has steady performance, high reliability, high bus signal driving capability, far transmission distance, simple structure, powerful function, high cost performance, is convenient to use, and can perform long-term and continuous mass data transmission.

The invention discloses a dual redundant fault-tolerant system based on embedded type CPU, comprising a basal plate, a first CPU module, a second CPU module, a first output switching module, a second output switching module and a communication module, wherein the first CPU module, the second CPU module, the first output switching module, the second output switching module and the communication module are arranged on the basal plate and communicate with an upper computer through the communication module; and the first CPU module and the second CPU module complete the data acquisition of a sensor and then carry out data processing and operation and finally output a result through the first output switching module or the second output switching module to drive an execution module to work. The invention solves the problem of the single-point fault of the traditional dual redundant fault-tolerant system and can still keep the system in a normal working state by switching the system to redundant backup equipment when the system is in a fault mode; in addition, the dual engine redundant fault-tolerant system has the advantages of simple method, high general reliability, structure simplification of selected parts and high cost performance.

The invention discloses a high-performance polycarboxylate water reducing agent and a low-temperature one-step preparation method thereof. In the invention, high-activity isopentene alcohol polyethenoxy ether or isobutylene alcohol polyethenoxy ether large monomer and acrylic acid react in a water solution at a low temperature (30-50 DEG C) to obtain the high-performance polycarboxylate water reducing agent in a two-dropping one-step mode. The water reducing agent has the advantages of high water reducing rate, low doped amount, high dispersity, favorable slump retaining property, wide applicability and high cost performance, and is suitable for various types of cement; and when the water reducing agent is used, more powdered ores and fly ash can substitute cement. The preparation method is simple for operation, and has the advantages of low energy consumption and environmental protection; three wastes are not discharged in the whole production process; and thus, the preparation method is a green synthesis method.

The invention discloses functional fatty powder and a preparation method thereof, and belongs to the technical field of feeds. The functional fatty powder is characterized in that raw materials comprise the following components in parts by weight: 30-50 parts of concentrated omega-fatty acid fat, 10-20 parts of lecithin, 8-15 parts of concentrated linolenic acid fat, 8-15 parts of MCT, 1-5 parts of choline, 1.5-5.5 parts of nicotinamide, 1-5 parts of a composite emulsifying agent, 3-8 parts of a composite antioxidant, 2-8 parts of vitamin C, and 40-70 parts of encrusting substances or 30-60 parts of carriers. The functional fatty powder provided by the invention is small in addition quantity, high in cost performance ratio, good in stability, high in nutrient value and high in fat utilization rate; the functional fatty powder not only can greatly improve the growing property and the reproductive property of animals but also can improve the immunity of the animals and promote the development of animal organisms, so that the functional fatty powder is an excellent feed additive.

The invention belongs to the field of electrical engineering, distributed power generation and power quality control, and aims to provide a multi-functional grid-connected inverter and a grid-connected inverter control method. The grid-connected inverter comprises a direct-current bus bar with a capacitor and three sets of single-phase full-bridge inverter circuits sharing the direct-current bus bar, the direct-current output ends of a distributed power supply or a grid-connected energy-storing generating set are connected to both ends of the capacitor of the direct-current bus bar, the output of each set of single-phase full-bridge inverter circuit is connected to a filter, and the output ends of each filter are connected with a distribution network of the 380V voltage class through a single-phase step-up isolation transformer. According to the invention, the grid-connected inverter equipment is effectively utilized to carry out effective control on the power quality of points of interconnection, so that the grid-connected inverter is multi-purpose and multi-functional, the cost performance of the grid-connected inverter is enhanced, the investment, operation and maintenance cost of a system can be reduced, and the reliability of the system can be enhanced. The principle of the provided control scheme is clear, and the control scheme is highly operable and reliable in operation.

The invention discloses a dynamic and static mechanics comprehensive test bench, which relates to mechanics experimental equipment. Nowadays the mechanics test bench in the market has the disadvantages of single function, inconvenient operation, big size of the equipment and high price. A pure beam bending device, a composite beam bending device, a cylinder crankling device, a dynamic beam device, an equal strengthen beam device, a stretching and compressing device and a sinker rod are arranged on a main bench frame; the pure beam bending device, the composite beam bending device, the equal strengthen beam device, the cylinder crankling device and the stretching and compressing device respectively adopt a hand operated helical wheel to load, a sensor to measure the power, and transfer a load through a combined type lever power transmission system; the dynamic beam device uses a motor with an eccentric wheel to vibrate hardly; an interface board which is connected with the lead wire of a strain meter is arranged on the bench surface. The invention has the functions of combining and arranging various experiments of the basic mechanics and skill training of various basic experiments. The invention has the advantages that the comprehensive function is powerful, the cost performance ratio is high, the structure is compact, and the operation is convenient.

The invention relates to an iron rod rust removing device, in particular to an efficient rust-removing device for an iron rod for hardware machining. In order to solve technical problems in the prior art, the efficient rust-removing device being small in size, high in cost performance, free of professional requirements and manpower, convenient, rapid, efficient, safe and reliable, and having the advantage that the damage of the operating environment to the health of operating personnel is relatively small is provided. The efficient rust-removing device comprises an L-shaped bracket, a motor, a first bearing seat, a supporting rod, a water tank, a first one-way valve, a first rotating shaft, a first belt wheel, a second bearing seat, a lead screw, a clamping device and the like, wherein the motor and several other components are arranged at the inner top of the L-shaped bracket from left to right. Friction blocks perform reciprocating motion up and down and matched with the rotating iron rod for rust removing, so that the efficient rust-removing device provided by the invention achieves the effects of being small in size, high in cost performance, simple to operate, free of professional requirements and manpower, convenient, rapid and efficient.

The invention belongs to the field of metal structural materials, and particularly discloses a high-strength and corrosion-resistant nickel-iron-chromium-based high-temperature alloy and a preparation method for the same. The alloy material is mainly characterized by having the following ingredient range (wt%): 20-30% of Fe, 19-25% of Cr, 0.5-2.5% of Al, 1.0-2.5% of Ti, not greater than 2% of Nb, not greater than 2% of Mo, not greater than 2% of W, not greater than 1% of Ta, not greater than 0.5% of Si, not greater than 1.0% of Mn, not greater than 0.5% of Cu, not greater than 0.05% of C, not greater than 0.01% of B, not greater than 0.03% of Zr and the balance of Ni. The alloy disclosed by the invention is strong in anti-steam-corrosion and anti-fume-corrosion capacities; an ordered-reinforcing phase with dispersed distribution and gamma' phase (Ni3(Al, Ti)) are formed to enhance the high-temperature strength of the alloy; and the content of Fe is increased to the greatest extent on the basis of no influence on the structural stability, the anti-corrosion capacity and the high-temperature strength of the alloy, so as to improve the heat machinability of the alloy and reduce cost. Compared with the prior art, the alloy is low in material cost, excellent in high-temperature strength, heat machinability and corrosion resistance; and in particular, in the case that the alloy is used in the conditions of high temperature, supercritical steam and corrosive fume, the cost performance of the alloy is superior to the cost performances of the existing alloys. The alloy disclosed by the invention can be machined into tube materials, plate materials, bar materials and wire materials.

The invention provides an automatic tracing identification system for artificial neural control. The system comprises a fixed viewing field video acquisition module, a full-functional variable viewing field video acquisition module, a video image identification and judgment algorithm module, an artificial neural control module, a moving object track tracing module, a database comparison and alarm judgment module, a monitoring characteristic entering and rule setting module, a light monitoring and controlling module, a background light source module, an alarm output, display and storage module and a safety monitoring sensor. The system fully solves the problems of unclear doubtful target characteristics, single function, low intelligence degree and the like in post processing and images of the prior image monitoring system, uses the artificial neural control, biological identification technology and intelligent image identification algorithm, and has the characteristics of high intelligence degree, precaution, clear doubtful object images, high cost performance and the like.

The invention discloses porous ceramsite made of low-silicon iron tailings and a preparation method of the porous ceramsite. The porous ceramsite is prepared from, by weight, 75-90 parts of low-silicon iron tailing powder or low-silicon iron tailing pulp, 5-20 parts of pore-forming agents and 1-8 parts of clay, wherein the SiO2 content in the low-silicon iron tailing powder or low-silicon iron tailing pulp is lower than 40%. The method includes: weighing and mixing the iron tailings, the pore-forming agents and the clay, and granulating the mixture into green balls; and after the green balls are dried, calcinating the dried green balls for 40-60min at the temperature of 1100-1180 DEG C, so that the ceramsite made of the iron tailings is obtained. By the method, the porous ceramsite conforming to architecture application and water treatment application can be prepared respectively. The ceramsite prepared by the method has the advantages of high strength and apparent porosity, low density, good thermal insulation property, high cost performance and the like, and can be used for preparing various light, sound-insulation and thermal-insulation materials or used as light building aggregate, water treatment biological carriers and the like.

A gatherer device of wireless ad-hoc network meter reading system comprises a processor unit, a 485 bus interface unit, a wireless transmitting-receiving unit, and a power supply managing unit; wherein the processor unit is responsible for operation and control of the whole device, the 485 bus interface unit is used for connecting one or multiple electric meters, the wireless transmitting-receiving unit is responsible for interacting data and commands with a concentrator of the wireless ad-hoc network meter reading system, and the power supply managing unit supplies power for the whole device. An operation method of the gatherer device comprises that a command is received by the wireless transmitting-receiving unit and transmitted to the processor unit for processing, that the processor unit sends a request frame to an electric meter, that the processor unit receives a response frame from the electric meter and analyzes the response frame to acquire information of electricity consumption, and that finally the information of electricity consumption is returned to the concentrator through the wireless transmitting-receiving unit. The device and the method in the invention solve problems that the prior micropower wireless communication meter reading manners have much channel interferences, and are relatively low in security, relatively short in communication distances and not well in penetrating capabilities. Furthermore, the device has the advantages of low cost, high cost performance, good instantaneity, safety and reliability, and use and maintenance conveniences.

The invention discloses a phased-array antenna applied to an ETC (Electronic Toll Collection) system. The phased-array antenna applied to the ETC system comprises a transmitting antenna array, a receiving antenna array, a phased-array transmitting assembly, a phased-array receiving assembly, a waveform control interface, a communication control module, a ground sensing interface, a vehicle speed computing module, a vehicle tracking module, a power supply communication adaptor and a safety certificate module, wherein the transmitting antenna array is composed of antenna subarrays; the receiving antenna array is composed of antenna subarrays; and the communication control module is used for collecting a ground sensing coil signal, estimating the position and speed of a vehicle in real time, working out a waveform control command, and respectively controlling phase positions and amplitudes of each path of radio-frequency signals of the phased-array transmitting assembly and the phased-array receiving assembly so as to form a radio-frequency beam for tracking the vehicle in space. The invention also discloses an application method. According to the invention, dynamic and long-distance continued communication is realized, vehicle-following interference is eliminated, the transaction success rate is improved, the traffic speed is improved, the use efficiency of the ETC system and cost performance for construction are improved, and the construction cost is reduced.

The invention provides a hierarchical storage method. The method comprises the following steps of automatically classifying storage: starting a cluster and automatically identifying storage hierarchies on which hosts of various types are located; performing oriented access: selecting short-distance high-storage-hierarchy light-load nodes for data storage and reading; seeking hot data: recording access information of each data block in a document, judging migration time, obtaining the value of each accessed data block according to the recorded information in the coming of the migration time, and forming a queue from high to low according to the values; and migrating the data blocks: migrating the high-value data blocks to high-storage-hierarchy storage layers, and migrating the low-value blocks to low-storage-hierarchy storage layers. With the adoption of the hierarchical storage method provided by the invention, the arrangement is easy, the hardware is low in price and the cost performance is higher; and meanwhile, the data scheduling of the cluster is improved, so that the access performance of the cluster is optimized.

This invention relates to the laminated material for food packaging, and its manufacturing process. The laminated material (10) consists of the quality keeping intermediate layer (12) laminated inside the paper core layer (11) and the core layer and the heat sealable innermost layer (13). The quality keeping intermediate layer comprises of an extrusion coatable blend polymer consisting of polymer component A 50-95% of nylon-MXD6 or EVOH and, polymer component B 5-50% of nylon 6, nylon 6, the blends or PET. The quality keeping intermediate layer is extruded and laminated directly in the core layer, the innermost layer contains at least the linear low density polyethylene which has a narrow molecular weight distribution, and has the properties parameter of mean density of 0.910-0.925, 100-122 degrees C. peak melting point, melt flow index of 5-20, swelling ratio (SR) of 1.4-1.6, and 5-50 micrometer layer thickness.

The hardness, production efficiency, and cost performance of the barrier packaging container formed by the packaging material are improved.

The invention relates to a novel smart home monitoring system based on the Internet of things. The system comprises a central controller; the central controller is connected with an intelligent sensor, an entrance guard system, a video monitoring system, an air quality detection system, a handheld wireless voice remote controller and a controlled device via the Internet and a wireless communication module; the central controller is also connected with a remote device via the wireless network module; and the handheld wireless voice remote controller is connected with the controlled device via the wireless network module. The system can improve the safety, convenience, comfortableness and artistry of smart home, and is characterized by being intelligent, human-based and high in cost performance; the system is low in cost, simple in operation, easy to learn and use, and especially suitable for common users, and can be comprehensively popularized and applied; and the economic effect of the system is very substantial.