51results about How to "There is no problem of loss" patented technology

The invention discloses an entrance guard control method and an entrance guard control system. The method provided by the invention comprises the following steps of: obtaining a door-opening request and a user account number which are input by a user by an entrance guard switch apparatus and sending the door-opening request and the user account number to an entrance guard managing system at the far end; storing a corresponding relation between the user account number and a user mobile terminal sign by the entrance guard managing system; responding the entrance guard managing system to the door-opening request to generate a password and a check code which correspond to the user account number; sending the password to a mobile terminal corresponding to the user account number and sending the check code to the entrance guard switch apparatus according to the corresponding relation between the user account number and the user mobile terminal sign; obtaining the password input by the user by the entrance guard switch apparatus; utilizing the check code to check the password and executing a door-opening operation after the check is passed. The technical scheme provided by the invention is as follows: the entrant does not need to carry a key substitution and also does not need to remember complicated password so that the system provided by the invention is convenient for user to use and the problem of losing the password is not existed; and the password is not easy to be cracked so that the safety is high.

The invention discloses an adsorbing material prepared from waste straws and capable of adsorbing trivalent arsenic from water as well as a preparation method and an application thereof, and belongs to the field of synthesis and application of environment functional materials. The adsorbing material is prepared by using the waste straws as matrixes through one-step quaternary ammoniated reaction. The preparation method is simple and the sources of the raw materials are wide; the prepared adsorbing material is capable of effectively adsorbing and removing the trivalent arsenic out of water; after adsorption, the trivalent arsenic in the adsorbing material can be desorbed by using a sodium chloride or sodium hydroxide solution; and the adsorbing material regenerated after desorption has stable arsenic adsorption property. The adsorbing material prepared by the method is an effective way of the resource utilization of the waste straws in farmlands.

The present invention relates to the field of data transmission technology. In the concrete, it is a card data transaction system for payment on net and its method. Said system includes data table, virtual card verification device, virtual card transaction, processing device and interface of bank service system. Said invention also provides the steps for implementing said method.

The invention relates to a gas sensor, in particular to a quartz crystal resonator which is sensitive to ethanol, and preparation and application thereof, comprising an AT-cut quartz wafer and a gold electrode fixed on the quartz wafer, wherein, the outer surface of the gold electrode and/or the quartz wafer is coated with an ionic liquid membrane. The resonator is applied to a conventional QCM sensor to prepare a QCM ethanol gas sensor, and the operation principle is the quartz crystal microbalance technology; the response frequency of the sensor is reduced with the fractional increase of the surface quality of the resonator caused by the absorption of the ethanol gas on the surface of a sensitive membrane of the quartz resonator, and the reduced value of the frequency and the concentration of the ethanol gas are linear. The gas sensor has the advantages of simple structure, small size, fast and real-time response, high sensitivity, good selectivity, no need of analog to digital conversion for the output of frequency signals, convenient batch production and the like, and is particularly suitable for measuring the concentration of the ethanol gas in the air in real time.

The invention relates to a solar-energy low-temperature thermal power-generation and photovoltaic power-generation combination system, comprising a compound parabolic collector system, a heat storage system, an organic rankine cycle power-generation system, a photovoltaic module and a photovoltaic power-supply system, wherein the compound parabolic collector system comprises a high-temperature end compound parabolic collector array and a low-temperature end compound parabolic collector array, and the photovoltaic module is arranged on the upper part of a heat absorber of the compound parabolic collector; the heat storage system comprises a liquid storage tank in which coil pipes are equally arranged, and PCM (phase change material) is filled in the coil pipes; the organic rankine cycle power-generation system comprises an evaporator, a steam turbine, a generator, a heat regenerator, a condenser, two pumps and six valves. The total power-generation efficiency of the combination system is greatly enhanced; and the adoption of the heat storage system avoids the application of additional accumulators and complicated tracking devices, thus reducing cost; and the adoption of two-class evaporator reduces non-reversibility of heat transmission of heat-exchanging fluid and organic work-medium so as to reduce average running temperature, thus being in favor of prolonging service life of photovoltaic cells.

The invention relates to an identity authentication method based on a fuzzy vault and a digital certificate, wherein the digital certificate and fingerprint identification are combined in a smart card, so that the digital identity and the physical identity of a user correspond to realize the identity authentication with high safety. The method comprises the following steps of: firstly generating an RSA key pair in a user UK, and sending a public key and relevant registration information to an RA for auditing by the user UK; when the auditing is passed, transferring user information to a CA for verification by the RA; after the verification is successful, generating the digital certificate for the user and sending to the user to be stored in the UK by the CA; and inputting a fingerprint in the UK by the registered user, extracting the true detail points in the fingerprint, dispensing the true detail points into the UK and a fingerprint server, and locking the PIN of the UK by the true detail points of the user, so that the digital certificate stored in the UK and a corresponding private key can be safely protected. In order to reduce the calculation amount of the smart card, a secret sharing method is introduced, so that only when the information in both the smart card and the server can be obtained, the PIN of the smart card can be recovered to release the digital certificate containing the private key.

The invention relates to a direct-expansion type solar energy low-temperature thermal power generation and photovoltaic power generation compound system, which comprises an organic Rankine cycle power generation system, a thermal storage system and a photovoltaic heat collecting system. The photovoltaic heat collecting system comprises more than two parabolic reflectors positioned in a shell, wherein the bottom of each parabolic reflector is provided with a metal plate groove, the segments of an evaporation tube of an evaporator are respectively positioned in the metal plate groove at the bottom of each parabolic reflector, a heat absorption body is arranged above the metal plate groove, and a photovoltaic cell component is arranged above the heat absorption body. The concentration ratio of the parabolic reflector is smaller than 10. A direct-expansion type solar energy thermoelectric conversion structure adopted by the invention does not need an intermediate heat transfer medium, avoids secondary heat transfer, and effectively increases the heat transfer performance between an organic working medium and a photovoltaic heat collector. The invention realizes the direct combination of the evaporator and the heat collector, the organic working medium directly absorbs the heat to expand via the heat collector, and the invention breaks the limit of a secondary heat transfer key device of the previous solar energy low-temperature thermal power generation system.

The invention discloses a method for quickly determining benzene series substances in atmosphere. The method comprises the following steps: taking a hydrophobic ionic liquid material which is specifically sensitive to the benzene series substances as a sensitive coating material of a sensing element of a sensor based on mass-sensitive piezoelectric sensing technology, and obtaining the concentration of measured gas in a gas phase by detecting a frequency reduction value caused by the increase of trace mass caused by a measured object which is reversibly absorbed on a film of a resonator of the sensor. The method for determining the benzene series substances has the advantages of simple equipment structure, small volume, low cost, high sensitivity, good selectivity, quick response speed and the like, which particularly meets the need of field real-time and on-line monitoring.

The present invention relates to a fingerprint based network identity authentication system and its implementation method. Its application is convenient and flexible, and its input is simple and quick, as compared with traditional cipher flexible, and its input is simple and quick, as compared with traditional cipher identity identification system the fingerprint can not be lost, and the reliability of said system can be greatly raised. Said system includes fingerprint identification server, finger identification server subsystem and customer terminal. Besides, said invention also provides the concrete steps of its implementation method.

The invention discloses a methyl nitrite regeneration method, and is used for solving the problems of low regeneration rate of methyl nitrite, poor operational stability of a system caused by improper side reaction control, increase of operating cost and the like. The methyl nitrite regeneration method comprises the following steps: forming recycled gas containing 5-20% of nitric oxide after synthesis of methyl nitrite and carbon monoxide carbonyl, and entering the recycled gas to a methyl nitrite regeneration reactor in two parts, wherein a small part of recycled gas enters the lower section of the regeneration reactor from the bottom, the rest part of recycled gas and supplementing oxygen gas enter the upper section of the regeneration reactor from the middle part together; spraying fresh methyl alcohol into the tower top of the regeneration reactor, discharging methyl nitrite-containing gas from the tower top, pressurizing tower bottoms led out from the tower by using a pump and entering the tower bottoms to the lower section of the regeneration reactor from the middle part of the regeneration reactor; arranging a reboiler on the tower of the regeneration reactor, filling the lower section of the regeneration reactor with a catalyst, and arranging stuffing and/or a tower plate on the upper section of the regeneration reactor. The methyl nitrite regeneration method is simple in process, low in equipment investment and operating cost and high in regeneration rate of methyl nitrite and can be used for effectively solving the side reaction problem.

A copper polyphosphate catalyst used for oxidizing cyclohexane by hydrogen peroxide is disclosed, which features high catalytic activity and no loss of active components in its application.

The invention provides an organic phosphonic acid high-temperature proton exchange membrane for a fuel cell and a preparation method thereof. Specifically, the invention provides the organic phosphonic acid high-temperature proton exchange membrane for the fuel cell compounded by taking (a) polybenzimidazole compound A, (b) an acid-alkali organic phosphonic acid polymer B containing hydroxyl functional group or hydroxyl protected by a protecting group, and (c) organic polymer cross-linking agent C; the organic phosphonic acid high-temperature proton exchange membrane has high proton conductivity, high mechanical strength, high thermal stability, and high anti-oxidation stability, and has long-time and stable life, and is especially suitable for the preparation of the high-temperature proton exchange membrane fuel cell.

The invention provides a composite organic phosphonic acid high-temperature proton exchange membrane for a fuel cell and a preparation method of the composite organic phosphonic acid high-temperatureproton exchange membrane, in particular, the composite organic phosphonic acid high-temperature proton exchange membrane provided by the invention is characterized by taking a polybenzimidazole-type compound A and a neutral organic phosphonic acid copolymer B as raw materials and compositing the raw materials, wherein the molar ratio of A to B is nA:nB=1:(0.01-99.99). The high-temperature proton exchange membrane has the advantages that preparation of a polymer is easy, the membrane forming technology is simple, the organic phosphonic acid content and the proton conductivity are accurate and controllable, and the like; the preparation method is suitable for preparing the high-temperature proton exchange membrane with high electrical conductivity and good mechanical strength.

The invention relates to brick body steering equipment for ceramic plate production and a control method thereof. The brick body steering equipment comprises a rack, a conveying mechanism, lifting mechanisms and a steering mechanism; the conveying mechanism is fixedly arranged at the top of the rack and is used for connecting conveying equipment at the front end and the rear end of the equipment,receiving the ceramic plate brick bodies conveyed by the conveying equipment at the front end to a middle steering position and conveying the ceramic plate brick bodies to the next procedure after steering is completed; the steering mechanism is arranged at the bottom of the conveying mechanism and is used for steering the brick bodies after being lifted; the plurality of lifting mechanisms are arranged on the inner side of the rack at the bottom of the steering mechanism; and the lifting mechanisms are used for lifting the ceramic plate brick bodies and the steering mechanism together. According to the equipment, the lifting mechanisms are arranged to integrally lift a rotating platform, the ceramic plates are stably lifted to leave a roller table, and the ceramic plates do not generate displacement and friction on the grid supporting net of the rotating platform, so that the problem that the brick bodies are damaged by steering equipment while the brick bodies are steered is solved.

The invention provides a sunken-piece gobang, which consists of a gobang board and a gobang table. The gobang board is a case without a cover, the case is partitioned into small square boxes, a hole is arranged on the middle of each row, the end face of the piece is an equilateral triangle, the three planes are respectively made into black piece, white piece, and plane. A concave hole is arranged on the middle of the angle side, a through hole is arranged on the end face, a shaft fixes pieces in a small box by the hole on the gobang board. On a position corresponding to the concave hole on the angle side of the piece, a spring is arranged on the bottom of the case, a small steel ball is arranged on the spring, the small steel ball is stuck in the concave hole, the square gobang face is slightly smaller than the small square box, the gobang face is level with the face of the small box. The sunken-piece gobang of the invention overcomes the shortages that the present gobang is heavy, no place can hold the gobang board, the pieces cannot withstand shake and wind. The sunken-piece gobang of the invention is portable, light, does not subject to the site, can resist wind or shake, cannot cause the pieces to be lost, and is simple in production process, etc.

A lifting control device of an electric drive airer comprises a motor, a transmission mechanism, a rope winding wheel, an upper limit control mechanism and a lower limit control mechanism. The transmission mechanism comprises a worm and a first transmission gear. The diameter of the first transmission gear is smaller than that of the rope winding wheel. The upper limit control mechanism and the lower limit control mechanism each comprise a first contact switch, a pinion, a driving wheel, a regulating wheel, a fixed disc and a spring. The rope winding wheel drives the driving wheels to rotate through the pinions. The driving wheels drive the regulating wheels to rotate through meshing of first meshing threads and second meshing threads. A convex part of each regulating wheel controls a motor to stop. A clamping structure with a through hole and a slot is disposed on a rope winding part. The through hole is formed in the radial direction, and the slot extends circumferentially to be connected with a rope winding groove. Large torque can be output by the small-size motor, and the rope winding wheel can have a smaller diameter and a smaller thickness, so that the whole lifting controldevice is light, thin and small; the limit control mechanisms are simple and compact in structure, convenient to install and easy to adjust; and a clothes airing rope is easy and convenient to installand replace.

The invention provides a lifting type range hood and an integrated cooker, and relates to the technical field of kitchen appliances, the lifting type range hood comprises a smoke discharge assembly, a smoke collection assembly and a driving assembly; the smoke exhaust assembly comprises a fixed shell, and the fixed shell is used for being arranged between the two upper cupboards. The fume collecting assembly is used for sucking oil fume; the driving assembly is arranged in the fixed shell, is in transmission connection with the smoke collecting assembly and is used for driving the smoke collecting assembly to ascend and descend, so that the smoke collecting assembly extends out of or retracts into the fixed shell. The integrated cooker comprises the lifting type range hood. By means of the lifting type range hood, the technical problems that when an European style or side suction type range hood is installed, the integrity of the upper cabinet is damaged, and the use space of the upper cabinet is occupied are solved, and the user satisfaction degree is improved.

The invention discloses a new biological filter tank process and a new biological filter tank, the new biological filter tank includes a filter tank, a backwash water pipe located at the bottom side part of the filter tank, a water intake canal located above the filter tank, an effluent weir located below the filter tank, and a filter material; all the filter material is separately put into a plurality of liftable filter material boxes, the filter material boxes vertically separate a filter bed into a plurality of layers, the plane of the filter bed is also can be divided into a plurality of cases and one overall case according to the need of practical engineering, a water swelling material is arranged between the periphery of the filter material boxes and the filter tank, a compressible and stretchable rigid frame is arranged in the swelling material; the filter material size gradually decreases along the filtering water flow direction, and enough spare height is left above the filter material in the filter material boxes. The new biological filter tank can solve many technical problems of high backwash difficulty, easy blockage or hardening, high backwash frequency, high backwash water consumption, f large power consumption, high effluent SS (suspended solids) and the like of filter tanks in the prior art.