69results about How to "Meet certification requirements" patented technology

The invention relates to a driving dynamic code generating and authenticating system and a driving dynamic code generating and authenticating method based on time factors, aiming at solving the problem that a dynamic code generator in the prior art can generate one dynamic code within a fixed time cycle and can carry out authentication correctly once. The system comprises a dynamic code token, a client terminal and a server, wherein the dynamic code token comprises a first code generating module, a first time module and a counting module, and generates one or more dynamic codes; and the server is connected with the client terminal and comprises a second time module, a second code generating module, a memory module and a code matching and authenticating module, and matches and authenticates the dynamic codes requesting the authentication. In the invention, a plurality of dynamic codes can be generated within a fixed time cycle, thereby solving the problems that a traditional time-type token can only generate one code within the fixed time cycle and a user can not obtain the codes actively and without restriction, so that the requirements of the user can be met.

The invention discloses a trusted startup method based on an authentication policy file and hardware information collection. When a computer terminal device is electrified and started, the terminal is authenticated according to the preset authentication policy file; at first the authentication policy file is read and then information of hardware devices is collected; and each hardware device item is verified according to the authentication policy file and after the verification is successful, the computer terminal device is started credibly. If the verification fails, the authentication policy file which is not applied is searched; if the authentication policy file which is not applied exists, a new authentication policy file is used for new verification; and the procedure is the same until no authentication policy file exist. The method of the invention does not have to interact with an authentication server and other devices and the terminal device is authenticated locally so that the terminal device is ensured to run in a trusted physical environment and the safety of an information system is ensured. The authentication policy file can be flexibly configured according to the diversity of authentication requirements, thus the safety requirement of the information system can be met in a changeable situation.

The invention discloses contactless intelligent self-service license photographing equipment and method. The equipment comprises a chassis, an input / output module, a photographing module and an intelligent module, wherein the chassis comprises a fixed module and a scalable module, the fixed module is connected with the scalable module by virtue of a scalable part, the input / output module is arranged on the fixed module, the photographing module and the intelligent module are arranged in the fixed module, and the intelligent module is respectively connected with the photographing module and theinput / output module; and the photographing module comprises a camera module and a mobile module, and the mobile module is used for driving the camera module to move. The contactless intelligent self-service license photographing equipment and method which are disclosed by the invention can realize that hands of a user are free in a photographing process, photographing can be completed without keyor contact, an automatic photographing process is convenient and simple, industry intelligentization requirement in new times is met, and support is provided for the development of intelligent citiesand intelligent life.

The invention discloses a high-frequency partial discharge detector calibration system and a calibration method thereof. The system comprises a frequency modulation and amplitude modulation signal generator, a power-frequency current generator, a standard partial discharge signal generator, a signal conditioning module, a coaxial cable, a matching impedor, an oscilloscope, and a central control unit. The calibration method comprises the steps like calibrating the saturation characteristic of a high-frequency partial discharge detector. The amplitude and frequency of the frequency modulation and amplitude modulation signal generator are easy to adjust. The performance calibration requirement of high-frequency partial discharge detectors and high-frequency current sensors thereof can be satisfied. The problem on performance calibration of high-frequency partial discharge detectors and high-frequency current sensors thereof can be solved effectively and in a unified way. Regular inspection of high-frequency partial discharge detectors can be implemented easily. Good performance of high-frequency partial discharge detectors is ensured. The running status of electrical equipment can be reflected effectively. The system and the method of the invention have the advantages of accurate and reliable test results and easy implementation.

The invention discloses a gas instrument calibration device, which comprises a calibration platform for assembling a flowmeter to be tested. The calibration platform is at least connected with a stagnation container, a sonic nozzle, a negative pressure pipe and a Roots vacuum pump adopting the variable frequency control in turn. The calibration platform and the gas inlet of the calibration platform are arranged in a lockable calibration chamber, and the gas outlet of the vacuum pump is communicated with the calibration chamber through an underground duct. The gas instrument calibration device which has the advantages of low noise pollution, low energy consumption and small error is particularly suitable for the calibration of a gas flow measuring instrument.

The invention discloses a network slice authentication method, a corresponding device, a system and a medium, which are used for solving the authentication problem of UE accessing the network slice ina mobile communication network. The method comprises the following steps: acquiring a network slice authentication vector corresponding to the user network slice identification information of the user terminal from a network authentication entity; and authenticating with the user terminal according to the network slice authentication vector. A method for authenticate network slice in that invention and corresponding device, When the UE attaches to the mobile communication network and further accesses the network slice to receive the service provided based on the network slice, the system andthe medium effectively meet the dynamic deployment characteristics of the network slice, so that the attachment process meets the authentication requirements of the UE accessing the network slice.

The invention discloses an explosion-proof coil which comprises a winding (1) and a winding shell (2). A cable mounting part (3) and a circuit board (4) are arranged on the winding shell (2). A leading wire (5) is installed on the circuit board (4). A protection sleeve (6) is arranged outside the leading wire (5). A housing (7) is further fixedly connected outside the winding shell (2). The top end of the housing (7) is higher than the bottom end of the protection sleeve (6). The housing (7), the cable mounting part (3), the circuit board (4), the leading wire (5) and part of the protection sleeve (6) are formed into a whole through encapsulation. Compared with the prior art, encapsulation of the bottom end of the protection sleeve (6) is achieved through the explosion-proof coil, the electric insulation performance of the joint of the circuit board (4) is guaranteed, the explosion-proof performance of the explosion-proof coil is improved, the explosion-proof coil is made to meet the national certification requirements for explosion-proof coils, and meanwhile, market requirements for the explosion-proof coil of an electronic expansion valve can also be met. The invention further provides the electronic expansion valve with the explosion-proof coil applied and a machining method of the explosion-proof coil.

The invention discloses a split assembly and disassembly type device for measuring an automobile four-wheel aligner, which aims at solving the problems of the prior art that the integral size of equipment is large, the processing cost is higher, the waste on leveling time of the equipment is caused, the assembly difficultly is large, and the like. The device comprises a toe-in zero point inspection frame, a front bench inspection part and a back bench inspection part, wherein the toe-in zero point inspection frame comprises a front transverse beam, a back transverse beam, a left longitudinal beam, a right longitudinal beam, a left front support leg, a right front support leg, a left back support leg and a right back support leg, the two ends of the front transverse beam and the back transverse beam are connected with the front ends and back ends of the left longitudinal beam and the right longitudinal beam to form a plane rectangular framework, the top end surfaces of the left front support leg, the right front support leg, the left back support leg and the right back support leg which are vertically arranged and the bottoms of the four corners of the rectangular framework are fixed by bolts, the front bench inspection part is arranged at the front ends of the left longitudinal beam and the right longitudinal beam of the toe-in zero point inspection frame and are fixed by bolts, and the back bench inspection part is arranged at the back ends of the left longitudinal beam and the right longitudinal beam of the toe-in zero point inspection frame and are fixed by bolts.

The invention discloses a non-strobe non-isolated LED constant-current driving circuit which comprises an alternating-current source, a rectifier bridge, a capacitor and two constant-current driving units. The alternating-current side of the rectifier bridge is connected with the alternating-current source, the direct-current side of the rectifier bridge is connected with an anode of an LED, one end of the capacitor and the power ends of the two constant-current driving units, and the negative end of the direct-current side is grounded. A cathode of the LED is connected with the input end of the first constant-current driving unit, the output end of the first constant-current driving unit is connected with the other end of the capacitor and the input end of the second constant-current driving unit, and the output end of the second constant-current driving unit is grounded. According to the LED constant-current driving circuit, the charging current of an AC input source to the capacitor is controlled to be constant, the circuit is made to achieve the effect that an LED load dose not have strobe, meanwhile, above 80 percent of power factors can be achieved, and therefore the product certification requirements are met.

Provided are a flowmeter verification device and a verification method thereof. The device comprises a volume pipe I31, a volume pipe II29, a working piston I and a working piston II which are arranged in the volume pipe I and the volume pipe II, a synchronous motor I and a synchronous motor II which are connected with the working piston I and the working piston II, a photoelectric sensor I and aphotoelectric sensor II which are installed on the volume pipe I, a liquid storage tank 25 connected with the volume pipe II, a data collection unit 40, a computer and the like, a flowmeter to be verified is installed at the two ends of the volume pipe I and the volume pipe II, liquid which is the same as liquid flowing through the flowmeter actually is injected into the volume pipe I, the synchronous motor I and the synchronous motor II drive the working piston I and the working piston II to work to trigger the photoelectric sensor I and the photoelectric sensor II, time for the liquid to flow through the flowmeter to be verified is read, then the liquid is discharged into the liquid storage tank so that the volume of the liquid which flows through the flowmeter to be verified can be measured, the normal flow which flows through the flowmeter to be verified is calculated, according to readout data of the flowmeter to be verified, a readout error is calculated, and according to the error, whether or not the flowmeter is qualified is judged. According to the device and the method, measurement is convenient, and the data is accurate.

The invention discloses a torsion detecting trolley, comprising a detecting trolley body, a torsion testing system, a torsion displaying system, a power supplying system, a torsion expanding table and a hand-operated torsion loading device; the torsion testing system is positioned on the left half part of a worktable; the torsion expanding table is arranged at the right side of the worktable; the torsion loading system is arranged on the torsion expanding table and can reciprocate on the torsion expanding table for adjusting, so as to meet the torsion testing demands of a manual wrench on different effective moment arm lengths from 120-1500mm; the torsion testing system can be provided with multiple torsion sensors; and the torsion displaying system comprises a support mounted on the worktable, a torsion tester and a laptop. The torsion detecting trolley can be easily pushed to a work station site with the torsion tools needing detecting, for detecting work, problems can be timely discovered and solved, great practicability and convenience are realized, and a major problem in domestic torsion detection on site is solved.

The invention discloses an electric meter calibration method based on blue-tooth transmission, and belongs to the technical field of power equipment. An existing Bluetooth interface, just like all other wireless module interfaces, has the problem that data cannot be completely received, that is, the signal-loss may be present in the electrical pulse conversion process, thereby affecting the calibration accuracy. Through continuous exploration and tests, the present invention provides a calibration method for multiple retransmission signals, the existing calibration mechanism of single signal transmission and receiving is broken through, the concept is skillful, and the scheme is feasible. According to the electric meter calibration method based on blue-tooth transmission disclosed by the invention, a converted blue-tooth signal of a calibrated meter is retransmitted to calibration equipment in multiple times, the packet loss rate of the wireless signal can be effectively reduced and the reliability of reception can be improved. The calibration equipment in the present invention recognizes an effective error detection start point and an effective error detection end point; as long as a signal in the middle process is received by the effective data packet once, the calibration equipment can record the correct number of pulses and can effectively improve the calibration efficiencyand accuracy.

The invention discloses a verifying device of a small-flow gas flow meter. The verifying device comprises a compressed gas source supply device, a mass flow meter, a main standard and a detected gas flow meter which are sequentially connected through connecting pipelines, and further comprises an adjusting valve and an industrial control device. The main standard is a piston type gas flow meter. The adjusting valve is arranged on the connecting pipeline between the compressed gas source supply device and the mass flow meter. The industrial control device is connected with the adjusting valve, the mass flow meter, the piston type gas flow meter and the detected gas flow meter through data lines respectively. By means of the verifying device, the accuracy can reach the 0.05 level; compared with a verifying device of a bell jar type (0.2 level or below) and a verifying device of a standard checklist (0.25 level or below), the verifying device has a higher advantage and is quite suitable for verifying small-flow gas flow meters.

The invention discloses a method of call authentication and a VOIP (voice over internet phone) system, and the method comprises the following steps: calling a called party phone according to a calling party phone by an agency server, and carrying an authentication request in an inviting message sent by the called party phone; prompting a user to input authentication information by the called party phone according to the authentication request carried in the inviting massage; and receiving a response message carrying the authentication information sent by the called party phone by the agency server, carrying out authentication on the authentication information, terminating the calling if the authentication is failed, and allowing the calling if the authentication is passed. In the invention, the agency server ensures that the inviting massage sent by the called party phone carries authentication request, the called party phone reminds the user of inputting the authentication information according to the authentication request, and the identity authentication of the called party is realized through the authentication information, thereby satisfying the demand of the authentication of the user of the called party in the existing VOIP system.

The invention relates to an automatic calibrating device and method for a temperature measuring channel of an acquisition device in a weather station, belonging to the technical field of detection of instruments and meters. The calibrating device disclosed by the invention is combined with a resistance circuit and a four-wire system resistance circuit. The method disclosed by the invention comprises the following steps of: controlling the on / off of the acquisition device and the four-wire system resistance circuit accessed to a relay according to the resistance set by a user and realizing theswitch between the four-wire system resistance circuit and an acquisition device measuring circuit through a controller; displaying the measuring result of the four-wire system resistance circuit, converting the measured resistance into a temperature value and displaying the temperature value through the controller; and finally, controlling the relay to abut the acquisition device with the resistance circuit, realizing the calibrating measurement of the acquisition device and comparing a measuring value of the acquisition device with a display value output by the controller through the controller to obtain a calibrating error. According to the device and the method disclosed by the invention, the output resistance is accurately measured in a real time; the deviation between an actual output value and a nominal value of the resistance is greatly reduced; the influence from the temperature drift of the resistance and the contact between the relay and the resistance is eliminated; and the calibrating requirement of the acquisition device is completely met.

The invention relates to an interactive key security authentication method. The method comprises the steps that a terminal mutual identification certificate is generated; an offline authentication keyproduction management system and an authentication system respectively provide a supplier identity root certificate and a third-party root certificate, respectively generate a supplier identity public and private key pair and a third-party certificate public and private key pair, use the third-party certificate to carry out interactive verification on the public key and then sign, and generate aterminal mutual identification certificate of Internet of Things terminal equipment; the Internet of Things terminal equipment is initialized; the identification SN information is signed by adopting aterminal mutual identification certificate to form an ID signature, and the ID signature and the terminal mutual identification certificate are written into the Internet of Things terminal equipment;and authentication is carried out, and specifically the authentication system verifies the legality of the current terminal mutual identification certificate and the consistency of the ID signature according to the stored supplier certificate, the terminal mutual identification certificate and the third-party certificate, and outputs a verification result. According to the invention, the mutual identification certificate is generated by constructing the key pair interactively generated with the third party, so that the interactive security authentication information is generated.

This invention relates to UE interface agent AP to determine key method, which comprises the following steps: a, UE sends identification demands to AP; the demands has UE interface AS label; b, AP finds recorded needed key type according to identification demands; c, AP determines needed GAA derivative keys according to needed key type. This invention provides one system for AP identification with UE interfaced.

A distributed power supply device comprises a plurality of batteries or battery pack units which are cooperated to supply power for each electrical appliance of same equipment. The distributed power supply device comprises a controller, a control signal channel, a plurality of batteries or battery packs, a plurality of electrical appliances and a power circuit connecting the batteries or battery packs with the electrical appliances. Each battery or battery pack supplies power to one electrical appliance or a part of the electrical appliances. Physical isolation and electrical isolation are adopted among the plurality of the batteries or the battery packs, and among the corresponding electrical appliances, therefore, the plurality of batteries or battery packs and the corresponding electrical appliances can be taken as a plurality of independent units electrically, the electric power can be effectively distributed onto a plurality of independent lines, and further the safety of the system is improved in a specific environment. Meanwhile, the on / off state and the running state of each electrical appliance are uniformly controlled by the controller, so that the distributed power supply device has the advantages of central-station control and convenience in operation.

The invention discloses an SAP park document realization method and a system based on service configuration. The method includes following steps: according to a business requirement, a park document interface is drawn via an SAP standard drawing tool table control; according to interface content, related data required by the interface content is inputted, and parameters of the park document are generated according to the inputted related data; according to the parameters of the park document, an SAP standard interface function PRELIMINARY_POSTING_FB01 is called to realize parameter input of the park document; the document is generated and saved to a database; and the above content is supplied to a portal website for calling in the manner of calling parameters. The beneficial effects of the method and the system are that the problem that the current SAP document making is not friendly, and finance staff is difficult to get started is solved, the taking of the park document for an external system is solved, and parameter exchange of the park document and the external system is realized.

The invention discloses a single-point authentication method and device. The method comprises the steps of receiving a user authentication request sent by a CAS client terminal, and calling remote authentication services through a remote authentication interface to conduct authentication on the received user authentication request, wherein the remote authentication services are achieved by servers, capable of providing load balancing, in a server cluster. According to the technical scheme, the speed for processing the concurrent authentication request can be improved, and the single-point authentication reliability and stability are improved.

The invention relates to a floating type checking platform. A measuring element body, a mandril fixture and a floating workbench fixture are arranged on a pedestal of the checking platform. Measuring heads of the measuring element move horizontally under the control of the measuring element body, a mandril is tightly fixed on the mandril fixture, a floating workbench is tightly fixed on the floating workbench fixture, a measurand tightening fixture is arranged on the floating workbench, and a floating platform is fixedly connected with the bottom of the measurand tightening fixture, so that the measurand fixture can relatively and parallelly move by a force which is absolutely smaller than the floating thrust force and the acting force of an micrometering element, and the detection requirements which the measurands have equal size, opposite direction and bi-directional stress are satisfied by a uni-directional floating thrust force of the micrometering element and the parallel relative movement of the floating checking platform, thus effectively improving the accuracy of correction and measurement. The checking platform has simple structure, small size, light weight, high accuracy and easy operation, and is applicable to a DS series grating indicating gauge comparator and also widely applicable to internal or bi-directional measuring instruments, and correction and measurement on the floating platform of other high-accuracy measurands which require bi-directional stress measurement.

The invention provides a method for manufacturing industrial filter cloth. The method comprises the following steps: weaving polyether ether ketone mono-filaments by a rapier loom according to a warpdensity of 360-640 / 10cm and a weft density of 120-220 / 10cm, so as to obtain blank cloth; carrying out heat setting on the blank cloth at a temperature of 220-280 DEG C and a speed of 5-10m / min to obtain the industrial filter cloth. The method adopts special plastic polyether ether ketone (PEEK) fiber which has the characteristics of high temperature resistance, chemical resistance, abrasion resistance, high strength and the like; the mono-filament filter cloth processed by the special plastic polyether ether ketone fiber is high in filtration efficiency and abrasion resistance, and can be usedfor a long time at a temperature below 260 DEG C.

The invention belongs to the technical field of a mutual inductor, and relates to an electromagnetic type DC current transformer core and a current transformer. The electromagnetic type DC current transformer core comprises a silicon steel sheet iron core and an alloy iron core, wherein the shapes of the silicon steel sheet iron core and the alloy iron core are adaptive to each other, a first cutor two cuts are arranged in the silicon steel sheet iron core, an insulation non-magnetic material is arranged at the cut(s), the alloy iron core is formed by winding ultracrystalline alloy or permalloy, the alloy iron core is arranged in an inner cavity of the silicon steel sheet iron core, and an outer wall of the alloy iron core is in closely contact with an inner wall of the silicon steel sheet iron core to form an integral composite material iron core. By the electromagnetic type DC current transformer, the problem of poor signal conversion accuracy of a conventional electromagnetic current transformer when a DC component and a half-wave DC component exist in a primary system of a power grid is solved, and the electromagnetic type current transformer of which the converted signal specific value error is not larger than 2% and a phase error is not larger than 120' still can be met when a relatively large DC component and the half-wave DC component exist in the primary system.

The invention provides a control method of a voltage multiplying rectifying PFC circuit, a computer storage medium, the voltage multiplying rectifying PFC circuit and an inverter air conditioner. Themethod comprises the steps: obtaining a main power supply current value; determining a preset current interval where the main power supply current value is located; obtaining a target pulse chopping parameter according to a preset current interval where the main power supply current value is located; and controlling the voltage multiplying rectifying PFC circuit to perform chopping control according to the target pulse chopping parameter. According to the control method of the voltage multiplying rectifying PFC circuit, the preset current interval is set, the chopping control starting time, the chopping pulse width and other control parameters are obtained according to the preset pulse number, chopping control over the chopping circuit is achieved, the current waveform is close to the voltage waveform, and the power factor is increased.

The invention relates to a software testing method based on a 3V model. The software testing method comprises the following steps: S1, a user demand stage; s2, a system demand design stage; s3, a system architecture design stage; s4, a software demand design stage; s5, a software architecture design stage; s6, a software summary design stage; s7, a stage of encoding to a software unit test and a report stage; and S8, tests in other stages. Compared with the prior art, the invention has the advantages that the correctness and integrity of testing and development are ensured in the early stage of development.

The invention discloses a respiratory rhythm generator and a control method thereof. The respiratory rhythm generator structurally includes a two-position three-way solenoid valve, a two-position four-way solenoid valve, a speed-regulating air pump, an interface of a tested device, and a controller; a No.2 port of the two-position three-way solenoid valve is connected to a B port of the two-position four-way solenoid valve, an A port of the four-way solenoid valve is connected to the interface of the tested device, and a P port and a T port of the speed-regulating air pump are connected to a Pport and a T port of the two-position four-way solenoid valve correspondingly; and the controller performs gas control on the two-position three-way solenoid valve, direction control on the two-position four-way solenoid valve, and flow rate control of the speed-regulating air pump correspondingly. The problems of verification of two measurement parameters of the end-tidal carbon dioxide concentration and respiration rate of a multi-parameter monitor and the problems of calibration and quality inspection of an end-tidal carbon dioxide detector are solved. The respiratory rhythm generator is small in appearance and simple to operate, and on-site verification can be carried out in a hospital conveniently.

The invention discloses a gas instrument calibration device, which comprises a calibration platform for assembling a flowmeter to be tested. The calibration platform is at least connected with a stagnation container, a sonic nozzle, a negative pressure pipe and a Roots vacuum pump adopting the variable frequency control in turn. The calibration platform and the gas inlet of the calibration platform are arranged in a lockable calibration chamber, and the gas outlet of the vacuum pump is communicated with the calibration chamber through an underground duct. The gas instrument calibration devicewhich has the advantages of low noise pollution, low energy consumption and small error is particularly suitable for the calibration of a gas flow measuring instrument.

The invention provides a data processing method which can be applied to the financial field and the technical field of information security. The data processing method comprises the steps of obtaining identity information and video information of a target user, wherein the video information comprises face information of the target user; carrying out survival authentication on the target user by adopting a first authentication mode, and outputting a first authentication result, the first authentication mode comprising a mode of carrying out survival authentication according to the identity information and the video information; under the condition that the first authentication result represents that survival authentication fails, obtaining audio information of the user, wherein the audio information comprises voiceprint information of the target user; and carrying out survival authentication on the target user by adopting a second authentication mode, and outputting a second authentication result, the second authentication mode comprising a mode of carrying out survival authentication according to the identity information and the audio information. The invention further provides a data processing device, equipment, a storage medium and a program product.

The invention discloses an information synchronization management method and device, a computer system and a readable storage medium, which are applied to the field of data processing of big data, andcomprise the following steps: receiving an input account and an input password thereof sent by a control end, and storing the input account and the input password in a preset database as account information and an authentication password; reading account information and an authentication password thereof in a database and sending the account information and the authentication password to a bufferto realize information synchronization with the database; and receiving a verification request sent by an authentication program, identifying account information corresponding to a request account inthe verification request from the buffer, and returning an authentication password corresponding to the account information. According to the invention, only the information in the database needs tobe correspondingly modified, and account change or password change can be realized in time without restarting the authentication server, so that the smoothness of information change of the authentication server is ensured, isolation between external equipment and a data source is realized, and the risk that the information in the database is tampered is greatly eliminated.