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

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.

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.

The invention provides a refresh method of general guided framework key, MN and BSF store the common Ks, MN and NAF store the common derivative key Ks_(ext)_NAF and the relative key mark B-TID, when MN uses the new business of original NAF or accesses the new NAF, includes: MN starts the communication with the NAF, changes the key derivative parameters with the NAF; MN and NAF generate the new Ks_(ext)_NAF according to the Ks, key derivative parameters, NAF identifier, and MN identifier; and generate the new B-TID to mark the new Ks_(ext)_NAF; NAF and MN uses the new Ks_(ext)_NAF to protect the following data communication. Using the invention, it solves the skimble-scamble problems of key identifier existed in the general GBA flow and the refresh flow of Ks_(ext)_NAF.

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.

The present invention relates to a new type positive and negative ion type bimetallic active species catalyst for oxo synthesis to prepare acetic acid. The positive ion active species of said catalyst is square planar cis-dicarbonyl structure which contains N and O donor atoms and is formed from aminobenzoic acid and Rh(I), and the negative ion active species is complex structure which also contains N and O donor atoms and is formed from aminobenzoic acid and non-rhodium metal ruthenium, stannum, chromium, lead and zirconium. In the oxo synthesis reaction said catalyst has high activity under the relative moderate condition, at the same time has good selectivity in the process of catalyzing methyl alcohol carbonylation to prepare acetic acid.

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.

The invention belongs to the technical field of high voltage and insulation, and specifically relates to a method for fluorinating an insulator through use of a CF4 plasma. According to the method, an insulator is put in a reaction cavity, a mixture of CF4 and an inert gas is fed into the reaction cavity, the insulator is processed by a discharge plasma for 2-30min at room temperature and at low pressure of 0.01-0.1atm, so CF4 and the surface of the insulator are reacted with each other to generate a fluorinated layer. The method has the characteristic that the surface of a insulator is fluorinated through plasma processing in CF4, the surface flashover characteristic of insulators is improved, the electric strength of insulators is improved, the flashover voltage can be improved by about 50% to the maximum, the hydrophobic and oleophobic properties of the surfaces of insulators are improved, and the capability of insulators to prevent wet flashover and pollution flashover is improved.

The invention discloses a topology generation method of a switchboard management system, and belongs to the technical field of networks. The topology generation method comprises the following steps of: firstly, initializing, obtaining initialized information by a system, wherein the initialized information comprises management grouping, and management states, management roles, priorities, IP (Internet Protocol) addresses and MAC (Media Access Control) addresses of switchboards; then carrying out equipment recognition, equipment competition and private IP address allocation by the switchboards on the basis of an IPstack protocol; and finally, realizing link state display based on an LLDP (Link Layer Discovery Protocol). According to the topology generation method, topology generation can be rapidly completed, and the whole network link state information can be completely displayed, and the defects of long topology generation time and incapability of completely displaying the network link state information in the prior art are overcome, therefore the topology generation method is suitable for popularization and use.

The invention provides a data transmission method, electronic equipment and a computer readable storage medium. The data transmission method comprises the steps: when a data transmission instruction is received, a signature of a security component in the electronic equipment is acquired; the signature is sent to a key management system to be verified; when the signature passes verification, an application service certificate sent by the key management system, first encrypted data generated by the key management system and first random data are received; second encrypted data is generated according to the application service certificate; the first encrypted data is verified; when the first encrypted data passes verification, second encrypted data is sent to the key management system to be verified; and when the second encrypted data passes verification, login of an application service platform is achieved for data transmission. Accordingly, the security and high efficiency of data transmission can be effectively guaranteed, operation is convenient, and the user experience is better.

The invention provides a batch out-of-order random number generation method based on a single-chip microcomputer. The method includes the steps that a random and no-repetition out-of-order data table with the length of 256 bytes is established, adjacent data in the out-of-order data table are not continuous, data in the out-of-order data table do not repeat, and the data are out of order; according to the length of random numbers to be generated, the number of out-of-order data tables to be produced is determined; a plurality of data seeds are obtained through random access memory data of the single-chip microcomputer; when the random numbers are generated in batches, each byte of data are made to change through a pre-determined algorithm. The random number generation mode is high in randomness, the random numbers in batches are generated, the adjacent data are out of order, and confusion caused by similarity is not prone to occurrence. Besides, the random numbers in batches will not repeat, and the method is an ideal method for generating out-of-order random IDs in batches.

The present invention discloses a method for generating a vortex electromagnetic wave. For an array antenna that has a total number of n array elements, excitations are applied to all array elements so as to generate the vortex electromagnetic wave, wherein the excitations have equal amplitude and sequentially have a difference of 2pi1/n in phase, an orbital angular momentum (OAM) mode of the vortex electromagnetic wave is 1 or -1 (1 or -1 changes clockwise or anticlockwise according to a phase difference or is controlled through ascending or descending of the phase difference), and the total number n of the array element and a topological charge 1 only needs to meet a relationship of |1|<n/2. The method for generating the vortex electromagnetic wave is simple to carry out and does not limit an array unit form, the array elements are arranged flexibly, vortex electromagnetic waves of different OAM modes can be generated by adjusting the number of the array elements and the array element arrangement manner, and vortex electromagnetic waves of multiple OAM modes that work simultaneously can be generated through proper combination.

The invention relates to an embedded Linux multimedia information collection processing device and relative transmission method. Said device comprises: an embedded server, several client terminals and a cloud platform, wherein, said embedded server and cloud platform are connected via the RS485 bus; the embedded server and the client terminal process interactive control and data transmission via the RTP/RTCP to use the RSVP to realize QoS resource preparation. The invention uses safety strategy to prevent the impact on the server to confirm the safety of server authorization and safety of flow media in the network transmission. The network self-adaptive strategy of user terminal can make said device realize the balance between the band width process and the replay possibility when transmitting data in limit network. The invention can apply the remote control area, especially the unattended remote area to apply stable real-time interactive acoustic-virtual detection.

The invention discloses a space grid universal construction method driven by a global discrete point cloud system. The space grid universal construction method comprises: 1, generating a global discrete point cloud model based on grid points of a spherical four-point ternary network; 2, encoding the global discrete point cloud; 3, converting the codes and the geographic coordinates; 4, creating a proximity search rule of the global discrete point cloud system; and 5, generating a global discrete grid integrated code. According to the method, the grid points are taken as the core, a global discrete point cloud system is introduced, a universal generation method of the global discrete grid is constructed, and a new thought is provided for an interoperation mechanism of the global discrete grid.

The invention discloses an XML (Extensible Markup Language)-based report generating method, comprising the steps of: a system presetting a general report template and a CSS (Cascading Style Sheet) file for controlling the style of a report; receiving the uploaded XML report data file, and generating a report design file according to the XML report data file and the general report template, wherein the XML report data file is used for saving report logics required by services; generating a report according to a data source provided by a database, the report design file and the CSS file, and providing the report to the service for displaying. The method can simplify the report generating mode.