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114results about How to "Easy to generate" patented technology

System and method for positioning underground personnel

The invention discloses a system and a method for positioning underground personnel in a coal mine. The system comprises a ground monitoring center arranged aboveground, a transmission base state arranged underground, a plurality of gateway nodes, an optical fiber, a bus, a plurality of wireless beacon nodes and a plurality of mobile nodes, wherein the system is intrinsically safe when applied to underground equipment. The method is a positioning method based on mode matching and comprises the steps of: dividing a roadway into different blocks according to a roadway structure and the signal coverage area of the beacon nodes, distributing the beacon nodes in each block according to a same manner, generating a positioning mode database on the ground monitoring center through training the nodes in a training state, sending a positioning mode to the ground monitoring center by the mobile nodes according to the positioning signals of the received beacon nodes in a positioning stage, matching a mode generated by training the nodes in the database to find out a proximate mode, thereby realizing accurate positioning. The system and the method for positioning the underground personnel are high imprecision, low in cost and low in energy consumption, and the system is simple in equipment structure.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Longitudinal-torsional resonance ultrasonic vibration device

InactiveCN105478332ASimple form of vibrationComposite vibration in vibration form, simple power supply formMechanical vibrations separationElectricityEngineering
The invention discloses a longitudinal-torsional resonance ultrasonic vibration device, and relates to the field of ultrasonic processing and precise cutting. The problems that when an existing torsional vibration device applied to milling machining carries out torsional vibration, internal friction of a material loses most energy, and consequently, the torsional amplitude is small, and the energy utilization efficiency is low are solved. The device comprises a ladder type hollow cylinder cone composite body, a longitudinal-torsional conversion hollow cylinder, a pre-tightening bolt, the even number of piezoelectric ceramic pieces and a plurality of electrode pieces; the ladder type hollow cylinder cone composite body is mainly composed of an axial locating shaft, a cylindrical longitudinal-torsional conversion body, a conical torsional vibration amplifying body and a cylindrical longitudinal vibration amplifying body which are coaxially and sequentially arranged and are manufactured into a whole; and the ladder type hollow cone composite body, the longitudinal-torsional conversion hollow cylinder body, the even number of piezoelectric ceramic pieces and the electrode pieces are connected together through the pretightening bolt. The longitudinal-torsional resonance ultrasonic vibration device is used for ultrasonic vibration machining.
Owner:HARBIN INST OF TECH

Device for optically generating radar pulse compression signals

The invention discloses a device for optically generating radar pulse compression signals. The device comprises a laser, a coding signal generator, a microwave signal generator, a polarization multiplexing double-parallel Mach-Zehnder modulator, a direct-current power supply, a photoelectric detector, a polarizer and a polarization controller; and, by utilization of the frequency-shifting characteristic and the phase modulation characteristic of the polarization multiplexing double-parallel Mach-Zehnder modulator, after being coupled through the polarizer, polarization orthogonal modulated optical carrier signals and unmodulated optical first-order sideband signals output by the polarization multiplexing double-parallel Mach-Zehnder modulator are detected through the photoelectric detector, so that phase coded or linearly frequency-modulated radar pulse compression signals can be generated. On the basis of the integrated modulator structure, the device disclosed by the invention is simple in system composition and steady in performance; and, the following disadvantages can be overcome: the traditional manner of generating pulse compression signals in the electric domain is limited by the rate and the bandwidth of an electronic device; high-frequency signals are generated difficultly or cannot be generated; the time-bandwidth product is limited; the reconfigurability and the frequency adjustability of the system are poor, etc.
Owner:EAST CHINA NORMAL UNIV

Log generation method, apparatus, computer device, and storage medium

The embodiment of the invention discloses a log generation method, a device, a computer device and a storage medium. The method comprises the following steps: an interface invocation request is intercepted by an interceptor, and the interface invocation request comprises an interface identifier; Whether the corresponding software interface identified by the interface is an annotation interface isjudged by an interceptor, and the annotation interface is a software interface with a preset annotation added in advance, wherein the preset annotation comprises a database identification and a log table identification; If the software interface corresponding to the interface identifier is an annotation interface, the input parameters of the software interface are obtained through the interceptor,and the input parameters are written into the log table corresponding to the log table identifier, and the log table is stored in the database corresponding to the database identifier; the software interface runs, the running results of the software interface is obtained through the interceptor, and the running results is writen into the log table corresponding to the log table identifier to generate the log. By implementing the method of the embodiment of the invention, the generation mode of the log can be simplified, and the unified management of the log can be facilitated.
Owner:PINGAN PUHUI ENTERPRISE MANAGEMENT CO LTD

Composite optical eddy generation method and device thereof

The invention relates to a composite optical eddy generation method and a device thereof. The invention is characterized in that the method and the device belong to the method and the device for compounding eddies through the coaxial overlapping of various optical eddies realized by the angle multiplexing polyad storage technology. The device comprises a light path and a generation device, wherein the light path uses the angle multiplexing technology for realizing the polyad holographical storage and reoccurrence, the light path can realize the holographical storage and reoccurrence of various different optical eddies, the generation device is used for generating the optical eddies, and the generation device can generate different optical eddies according to the requirements. Different light irradiation body holographical recording media are controlled through computer programming for reproducing different eddy combinations, so the coaxial overlapping of different optical eddies is realized for generating composite eddies. The invention satisfies the coaxality and high diffraction efficiency of different optical eddies. In addition, because the method can increase the storage capacity of the optical eddies through changing the incidence angle of the reference light, the composite eddy generation method of the invention is simple and is easy to regulate, and in addition, the obtained composite eddies have various types.
Owner:HAIAN LANBO +1

Method for generating vortex light with rotation angular momentum and vortex light array with rotation angular momentum

The invention discloses a method for generating vortex light with rotation angular momentum and a vortex light array with rotation angular momentum. On the basis of the shaping principle that a phase plate with rotation phase distribution is irradiated by a collimated light beam to generate a vortex light beam, the azimuth angle of a rotation phase and a proportional constant are multiplied, the rotation order of the rotation phase is in an ultrahigh level, and therefore the light which is similar to a line in light intensity distribution is generated in the observation (or imaging) plane perpendicular to the optical axis direction. Because the light is generated by the rotation phase and has rotation angular momentum, the light is called as the vortex light. The light beam can move particles on the observation plane perpendicular to the optical axis direction in a non-mechanical-moving mode. Multiple rotation phases modulated by blazed gratings are overlapped and distributed on the same phase plate, so that vortex light arrays arrayed in parallel are generated. The generated light beam has a unique optical characteristic, the generating method is simple and flexible, and the method can be used for the fields of optical tweezers technologies, light beam shaping and laser application.
Owner:CENT SOUTH UNIV

Composition, preparation method of heat transfer medium, phase-change refrigeration method of hydrate and phase-change refrigeration system of hydrate

The invention provides a composition, a preparation method of a heat transfer medium, a phase-change refrigeration method of hydrate and a phase-change refrigeration system of the hydrate. The composition contains carbon dioxide and a refrigeration working medium; the refrigeration working medium contains water, an oil-based carrying solution, a hydrate accelerant and a slurry stabilizing agent, wherein the carbon dioxide is dissolved into water; the hydrate accelerant and the slurry stabilizing agent are dissolved into the oil-based carrying solution and/or the water. The composition providedby the invention has the advantages that continuous cold source supply of the nature is sufficiently utilized, properties of a hydrate generation manner of simplicity and high refrigeration and coldenergy accumulation are utilized and characteristics of low additional energy consumption, energy saving and environment protection, low operation cost and safety and reliability are utilized to simultaneously overcome the problem of cold energy utilization of seawater and underground water water-source heat pump in the prior art and the problem of pipeline blocking caused by hydrate agglomerationand sedimentation in a hydrate phase-change refrigeration cycle. The invention provides an effective way for realizing efficient and reasonable utilization of energy and actual utilization of hydratephase-change refrigeration, and has extremely great economic and social values.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
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