377results about How to "Guaranteed non-interference" patented technology

The present invention discloses an interface authentication signature method facing a cloud platform. The method comprises the following steps of S1 applying for a security certificate, namely, applying for a Secret Id and a Secret Key in the uniform cloud platform, wherein the Secret Id is used to identify an API caller, and the Secret Key is used to encrypt a signature character string and verify the signature character string at a server end; S2 generating a signature, namely, generating the signature according to the security certificate of the S1 and by combining a region parameter, a timestamp parameter and a random positive integer parameter; S3 carrying out the interface debugging test, namely, verifying the generated signature, wherein the interfaces of the cloud platform can be accessed after the signature verification passes. The interface authentication signature method facing the cloud platform of the present invention realizes the data interface authentication access by utilizing an encryption technology and a database access multi-transaction processing technology, can guarantee the non-interfering interface access data transmission, and is safe and high-speed.

The invention provides a high-precision and large-load control system and method of a three-axis inertially stabilized platform for airborne remote sensing. The system comprises a DSP (digital signal processing) control unit, a PWM (pulse-width modulation) power drive unit, an interface circuit, a signal acquisition unit, an inertial device, an encoder and a direct current (DC) torque motor. The method comprises the following steps: acquiring data such as the attitude angle and angular speed of frameworks relative to an inertial space, coil current and relative corners among the frameworks through the signal acquisition unit; transferring the data into an internal register of the DSP control unit through the interface circuit so that the data is read by the DSP control unit; taking the data as signals to be input into the DSP control unit, and generating PWM controlled quantity by adopting a three-loop (a current loop, a speed loop and a position loop) compound control algorithm; and transferring PWM signals into an energy conversion circuit of an H-bridge DC motor through the power drive unit so as to drive the DC torque motor to change with reference instructions, and finally realizing active control of the inertially stabilized platform. The high-precision and large-load control system and method provided by the invention have the advantages that control precision and loading capability of the system are improved, the control algorithm is completed, and diversity and intellectualization of a platform operating mode are improved.

The invention provides a natural fiber crystal variation modified liquid medium filling and recovery system based on paralleled multiple buses and multiple modified kettles. The natural fiber crystal variation modified liquid medium filling and recovery system based on the paralleled multiple buses and multiple modified kettles comprises a liquid medium low-pressure mass flow liquid-filling bus, a liquid medium high-pressure small flow liquid-filling bus, a liquid medium low-pressure mass flow liquid-return bus, a liquid medium low-pressure small flow liquid-filling bus, a gas phase balance bus, and n modified kettles which are in parallel connection on the buses, and n >=1. The invention further provides a natural fiber crystal variation modified liquid medium filling and recovery method based on the paralleled multiple buses and multiple modified kettles. The liquid-filling process comprises mass flow balance liquid filling and small flow pressure boosting liquid filling, and the liquid return process comprises mass flow pressure relief liquid return, mass flow balance liquid return, small flow balance liquid return, and cage shift liquid exhaustion. The natural fiber crystal variation modified liquid medium filling and recovery system and the method based on paralleled multiple buses and multiple modified kettles are good in modified effect, small in system energy consumption, and high in production efficiency.

The invention discloses a variable pump with load sensitive throttle control and volume control functions and a hydraulic control system using the composite variable pump. The composite variable pump comprises a shell, a pump body, a variable control hydrocylinder and an electromagnetic proportioning valve, wherein the electromagnetic proportioning valve is connected with a displacement valve in parallel; a constant-pressure control valve is connected between an oil outlet of the pump body and the electromagnetic proportioning valve; a flow control valve is connected between the oil outlet of the pump body and the constant-pressure control valve; and a control side of the flow control valve is connected with a load feedback oil port X. The hydraulic control system using the composite variable pump comprises a controller, the composite variable pump, a plurality of hydraulic actuating elements and a plurality of load sensitive valves. The composite hydraulic pump can enable the system to work in the volume control mode or load sensitive throttle control mode; the actions of the actuating mechanisms do not interfere with each other; and thus, the system has the advantages of higher efficiency and more energy saving.

A combined delta-wing ducted aircraft is composed of a plurality of delta-wing coaxial counter-rotating ducted aircraft units, which are combined in the form of pyramid steps, and the overall shape after the combination is still triangular; The shaft-to-rotating ducted aircraft unit mainly has a coaxial counter-rotating ducted aircraft, a delta wing, and an accelerated propulsion wing; each delta-wing coaxial counter-rotating ducted aircraft unit is connected by a connecting mechanism on the wingtip of the delta wing Get up to form a combined delta-wing ducted aircraft.

The invention aims at providing an oil-drive direct-driven multi-rotor-wing agricultural plant protection unmanned aerial vehicle which can greatly prolong the runtime, is high in structural stability and anti-shock capacity and can increase the load capacity. According to the adopted technical solution, the oil-drive direct-driven multi-rotor-wing agricultural plant protection unmanned aerial vehicle comprises a machine frame, avionics, a power mechanism and a spraying mechanism; the machine frame comprises a supporting beam, an upper central plate, a lower central plate, machine arms and pull rods; the upper central plate and the lower central plate are fixedly connected to the supporting beam; the six machine arms are fixed between the upper central plate and the lower central plate in a crossed mode in the regular hexagon diagonal direction; a reinforced umbrella-shaped structure formed by the pull rods is arranged between the machine arms and the supporting beam; each power unit comprises an engine fixed to an engine base, a steering engine fixed to the bottom of the engine, and a propeller connected to an output shaft of the engine; the power mechanism of an oil-drive direct-driven structure; and the output shafts of the engines are directly connected with the propellers.

The invention relates to a tunnel constructing device, especially providing an automatic anchor rod driller for supporting the top plate and side wall, wherein said invention is formed by track walking device, frame and the drilling machine mounted on the frame; said invention can not work with tunneller, to cause low working efficiency. The invention is mainly formed by two separated portable frames mounted on the track walking device; the longitudinal and transverse drilling machines are independently mounted on the beam and upright post of portable frame; the tunneller can move at the middle of portable frame, to improve the working efficiency.

The invention discloses a multi-data-source dynamical isolated access method. Aiming at requirements of multi-data-source dynamic access, the dynamic database connection, access and multi-transaction processing technologies are utilized, and multi-data-source dynamic isolated access is realized through three stages including multi-data-source dynamic connection, multi-data-source dynamic inquiry and multi-data-source isolated storage. High-speed access and management of multiple (unlimited number) data sources can be completed simultaneously, and by the data isolation technology, non-interfering of data transmission of the multiple data sources is guaranteed and safety and high speed are realized, so that oneness and inefficiency of operations on data sources of conventional software are overcome. The multi-data-source dynamical isolated access method can be widely applied to software development environments needing simultaneous access to different data-source data, especially SaaS (software as a service) and PaaS (platform as a service) environments in the field of cloud computation.

The invention provides a channel allocation method and a channel allocation device used in a wireless communication system. The method comprises the steps of allocating a working channel for each application (AP) in the wireless communication system according to a principle of smallest conflict of the allocated working channels of adjacent APs; allocating an idle channel for the AP with the working channel in the wireless communication system; combining adjacent APs meeting following conditions in the wireless communication system so as to form a connected region, wherein the same number of identical idle channels and the allocated working channels are bonded and the bandwidth satisfies bandwidth rank of bonded channels permitted by the wireless communication system, and the connected region occupies the idle channels forming the connected region; and controlling the APs in the connected region to share the idle channels occupied by the connected region, and controlling each AP in the wireless communication system except the APs in the connected region to bond the allocated idle channel and working channel so as to form a broadband broad channel for use. Through adoption of the method, the APs can fully use left idle channels while not disturbing each other as far as possible.

The invention discloses a method and device for non-mark all-optical nerve regulation and imaging. Infrared laser pulses are used for stimulating nerve activity, OCT is used for collecting optical scattered signals triggered by nerve activity, and therefore non-mark all-optical nerve regulation and imaging are realized. The method includes the detailed steps that infrared lasers aim at a brain target region, laser pulses of a certain time sequence are injected, OCT is used for conducting synchronous scanning imaging on the target region, relative changes of the OCT scattered signals are analyzed compared with the conditions prior to laser stimulation, brain function signals based on OCT are obtained, and therefore nerve regulation and imaging are realized synchronously. Nerve regulation and imaging can be developed synchronously, crosstalk of a regulation/imaging channel is avoided, a contrast medium and virus transfection are not needed, and regulation and imaging of tissue deep regions can be realized through near infrared bands.

The invention discloses an RFID air interface anti-collision dispatching method, comprising the following steps: a reader transmits synchronous/ actuating signals, tags in the antenna control area of the reader receive the synchronous/ actuating signals and then a preset working frequency point is selected as the communication channel and a time slot in the data frame is randomly selected to transmit ID number; if the reader recognizes the ID number of the tags in the time slot, then the reader transmits a response signal to confirm the reception of the data of the tag, the tag does not transmit ID number within the scope of the reader any more after receiving the response; the reader adopted in the method is provided with an antenna array, any antenna of which is connected with a plurality of band-pass filters and all antennae are in the work state of transceiving signals, control areas of adjacent antennae do not overlap, the tags are provided with a plurality of working frequency points. The technical proposal of the invention is applicable to active and half active RFID system anti-collision dispatching method.

The invention discloses a quantum encryption system for visible light communication. The system comprises a communication gateway and a communication terminal. The communication gateway comprises a first quantum key allocation module and a first visible light communication module. The communication terminal comprises a second quantum key allocation module and a second visible light communication module. The first quantum key allocation module comprises a first photon generator, a QKD system and a first encryption and decryption system. The first visible light communication module comprises a first modulator-demodulator, a first LED light source and a first optical signal receiver. The second quantum key allocation module comprises a second quantum key analyzer and a second encryption and decryption system. The second visible light communication module comprises a second modulator-demodulator, a second optical signal receiver and a second LED light source. Two communication parties carry out encryption and decryption processing on visible light transmission information through utilization of a quantum encryption and decryption system. Further, quantum identity authentication and quantum message authentication can be carried out on the visible light communication, so the visible light communication has theoretically absolute security.

The invention belongs to the technical field of sea detection radars, and discloses an ocean and ionosphere integrated detection high-frequency radar system and a control method thereof. The ocean and ionosphere integrated detection high-frequency radar system comprises a display control platform, a time schedule controller, a comprehensive signal generator, an ionosphere detection subsystem and an ocean information detection subsystem. According to the invention, according to the principle of a high-frequency ground wave radar and an ionosphere vertical measuring instrument, a novel ocean-ionosphere information integrated detection high-frequency radar system is designed, ocean-ionosphere information synchronous acquisition is achieved, and data support is provided for scientific research such as near-earth ocean-atmosphere physical operation law and principle analysis; and by designing a unified time schedule controller and waveform parameters synchronous with each other, synchronous acquisition of ionospheric vertical measurement and ocean information is realized, mutual interference between the ionospheric vertical measurement and the ocean information is avoided, non-interference between ionospheric vertical measurement and ocean information acquisition is ensured, and ionospheric information and ocean information can be acquired synchronously.

The invention discloses an intelligent management method of unmanned pipeline traffic, and relates to a rail traffic management method. The method includes the steps of building closed pipelines, setting up a plurality of stations, placing rail vehicles, setting up stations, connecting a plurality of rail vehicles in the closed pipelines into a whole through a large data controller, inputting a starting station and a destination station by passengers, determining the vehicle running route and the optimal running speed, and transporting the passengers to the destination station by the rail vehicles according to the received vehicle running route and running speed. According to the method, the rail vehicles are placed in the closed pipelines, the interconnection of all the rail vehicles is realized through a large data technology, all the rail vehicles are formed into a whole, unmanned driving is realized under the unified computing environment of computers, mutual non-interference of the rail vehicles in the closed pipeline can be ensured, and passengers can reach the destination station with a best route and speed.

The invention relates to a steel bar binding machine. The steel bar binding machine comprises a machine body, a wire storage mechanism, a wire outlet mechanism and a binding mechanism; the wire storage mechanism is used for storing a U-shaped binding wire; the wire outlet mechanism communicates with the wire storage mechanism and bends the two free ends of the U-shaped binding wire to one side; and the binding mechanism is arranged on the bent side of the U-shaped binding wire correspondingly and tightly twists the two free ends of the U-shaped binding wire. The steel bar binding machine is high in automation degree and has the advantages that the steel bar binding machine is provided with the wire storage mechanism, the wire outlet mechanism and the binding mechanism, the U-shaped bindingwire can be bent automatically, and the free ends of the U-shaped binding wire can be tightly twisted automatically, the automation degree is high, and the binding efficiency of steel bars is improved greatly.

An automatic rain and dust sampling, collecting and monitoring system is disclosed and belongs to the field of rainfall and dust fall collection. The system includes a water collection box, a time-sharing collection disk, sample storage bottles, a rainfall sensor and a controller. The top opening of the water collection box is provided with a mobile cover. The bottom of the water collection box is provided with a collecting pipe. The bottom end of the collecting pipe is in a rotating disk and is communicated with a connecting pipe. The time-sharing collection disk is provided with a plurality of branched pipe holes at intervals. The rotating disk is driven to rotate by a first power mechanism and allows a water outlet end of the connecting pipe to be flushed with the branched pipe holes one by one correspondingly. The branched pipe holes are connected to sampling pipes. Water discharging ends of the sampling pipes penetrate into the sample storage bottles. The system overcomes a disadvantage that rain collectors in the prior art are poor in sample storage effects and influence detection results, performs automatic rainwater collection and detection for long time, effectively isolates a pollution source, ensures distortionless rainwater samples to a great extent, and increases accuracy of rainwater sample analysis.