385results about How to "Unlimited quantity" patented technology

The invention discloses a method and a device of connecting Bluetooth devices at a master end and slave ends. Through adopting a one-master multi-slave asynchronous on-line method, the number of networking users is not restricted, and meanwhile, the existing Bluetooth protocol stack is modified, a time parameter is optimized, so that the time for completing connection, data exchange and disconnection at one time is smaller than 1 second, thus the number of the networking users is not restricted and the practicability is enhanced.

The invention provides a GNSS decimeter scale differential positioning method based on virtual grids. Pseudo range differential correction information is divided through grids, the pseudo range differential correction information is broadcasted in a broadcast form, a user determines which grid the user is in according to a preliminary position of the user, and required correction information is selected and pseudo range differential correction is performed. Since users in all grids use same correction data, and a user terminal determines which correction information is needed, a server just needs to broadcast correction, and user interaction is not needed. The method reduces pressure of the server, and is not limited by terminal user number. The method solves a problem of user concurrent getting online, and provides algorithm basis for large amount of decimeter scale GNSS differential positioning service.

The invention discloses an underwater positioning and navigation system and method based on the DGPS. The system is composed of GNSS satellites, at least four DGPS buoys and at least one underwater positioning and navigation receiver. The buoys receive GPS signals and are in wireless communication with one another so that DGPS positioning can be achieved. The buoys broadcast navigation signals to water. Frequency spread can be conducted on the navigation signals through pseudorandom frequency spread codes, wherein the frequency spread codes play a role of ranging codes at the same time. The underwater positioning and navigation receivers do not need to transmit signals outwards. The underwater positioning and navigation receivers resolve the positions of the underwater positioning and navigation receivers in the earth coordinates and the accurate positions of the underwater positioning and navigation receivers relative to a base station by means of the received navigation signals of the buoys. Time synchronization of the underwater positioning and navigation receivers and the UTC is achieved. Multiple underwater positioning and navigation receivers can be arranged in the system to simultaneously receive the navigation signals, and the number of the underwater positioning and navigation receivers is not limited. The underwater positioning and navigation system and method can be applied to the underwater exploration field, the under water construction field, the underwater security and protection field, the underwater navigation field and other fields.

The invention relates to a DTI (Diffusion Tensor Imaging)-based cranial nerve fiber bundle three-dimensional rebuilding method and a method of manufacturing a head three-dimensional model comprising nerve fiber bundles based on a 3D printing technology. The method comprises the following steps: magnetic resonance scanning is carried out on a target tissue area and surrounding nerve fiber bundles to acquire MRI image data for the target tissue area comprising the nerve fiber bundles; DTI processing and related processing are carried out on the acquired MRI image to acquire an MRI image with an identifiable nerve fiber bundle; calculation is carried out on X-axis information, Y-axis information and Z-axis information of the MRI image with the identifiable nerve fiber bundle, three-dimensional rebuilding is carried out via mimics software, and a three-dimensional mode comprising the cranial nerve fiber bundle is acquired. Through the three-dimensional model and the 3D printing three-dimensional solid model, the position relation among an anatomic structure, a brain function area and each tissue can be displayed clearly, a solid model is provided for an operation, and the method is used for operation approach design and operation simulation.

The slide way type life saving system for high building includes sliding fall platform, sectioned hard sliding fall passage comprising decelerating slide way, turning slide way and guiding and decelerating slide way, buffering damper in the bottom and sectional decelerating unit. It features the hard sliding fall passage comprising vertical decelerating slide way, turning slide way and guiding and decelerating slide way connected smoothly; and the buffering damper fixed to the end of the guiding and decelerating slide way. The life saving system may be used to evacuate people from high building, and one sliding fall passage may be shared by several stories.

The invention discloses a method and a system for playing a media file, as well as a media player, which aims to solve the problems that the prior media file format and the corresponding matching playing mode are incompatible with a third-party code, as well as the soundtrack support is limited. The method comprises: reading format information of the media file, wherein the format of the media file is predefined in a tree structure, and comprises a file header and the node attribute of the tree structure, each node is corresponding to different media streams respectively, and each node defines own attribute information; analyzing the file header and acquiring the each node attribute of the media file; searching decoders of the corresponding node data according to each node attribute; and reading each node data, and decoding and playing by use of the corresponding decoders. The media file format can be added arbitrarily; nodes with frequency, video, caption, interaction and other attributes can be defined; and the number of the node is not limited, so that the invention can support all node attributes such as the frequency, the video, the caption, the interaction and custom.

The invention discloses a method and a mobile terminal thereof applying gravity induction function. The method comprises the steps as follows: the mobile terminal loads service software; gravity induction events and / or related events applying gravity induction on the mobile terminal are monitored through the service software; and the gravity induction function is controlled to be supported and an application module currently running is controlled to perform corresponding state switching according to the monitored events. The method and the mobile terminal comprehensively manage and control all application modules needing the gravity induction function to use the gravity induction function through the service software, so that the quantity of the application modules applying the gravity induction function cannot be limited, redundant module codes can be avoided at the same time, the system burden cannot be increased, the mobile terminal can be freely used by a user, and the user experiences can be improved greatly.

The invention relates to a message packet transmission system and relative message packet transmission method, wherein said method comprises that: based on the number of packet and message content, generating and sending packet transmission request; analyzing the request; inquiring the communicator numbers relative to the packet numbers; sending message to relative terminals. The system comprises client terminal, server and database, while the client module stores the communicator information, the pocket information formed by several communicators, and message content, to generate and second packet transmission request; server analyzes the request, sends message to the terminals; database real-time stores the communicator information, pocket information and message content of client module. The invention has low cost and simple operation.

The invention provides a large-scale intelligent group independent collaborative modeling method for imitation of starling group flight. The method comprises the steps of initializing a population andparameters thereof, setting as follows: in the initial state, all Agents use initial positions as optimal positions, and all Agents use optimal values of six or seven most closest neighbors as localoptimal values; calculating a fitness function, and setting distribution anisotropy of neighbors around each Agent, wherein six or seven most closest neighbors are isotropic, and interaction between the Agents depends on a topological distance; selecting an updating company, comprising the step of selecting one of the six or seven most closest neighbors as an updating company for a certain Agent;defining an interaction relationship of Agents; and updating Agent speed and position. The method has a broad application prospect in military, emergency, industrial and medical care fields like dronecluster intensive formation, group emergency evacuation in a large collection place, large-scale robot group collaborative operation, and disease spread control.

The invention discloses a numerical control machine tool production information obtaining method, and belongs to the field of manufacturing industry informatization. The method includes the steps that a log reading module is written and installed in a machine tool main control computer; a numerical control system executes numerical control codes and automatically generates a log file; the log reading module is started to analyze the log file and stores obtained structural data in a production information database; in a report server, a report module is set according to the style required by a user, and a data source is built for all report forms with data tables of the production information database; the user has access to the report server through a client, and various information statistical report forms defined in the report module are obtained. By means of the method, related data of production management can be automatically obtained and management report forms can be automatically generated on the basis of an existing machine tool log system.

The invention discloses a method for realizing a 3D (three-dimensional) function menu of a mobile phone, which is characterized in that a 2D (two-dimensional) icon of each function key is called through a master-model interface module of a 3D turntable, the 2D icons of the function keys are sequentially arranged in a 3D display mode of the turntable, the 2D icon of each function key selected by users is rotated in a clockwise or anti-clockwise sequence through a special effect processing module for the rotation of the 3D turntable, and the 2D icons are displayed in the foreground or background of the function menu, and the 2D icons of all function keys are arranged in a candidate mode, so that all the function keys are always in a visible state, and the number of the function keys is not restricted. When a user selects to enter some function interface, all the 2D icons of function keys on the current function interface are presented to the user in a dynamic special effect mode, such as dynamic simulation meteorological images of weathers, the sending, returning and shutter-type special sliding effects of short messages, and the like.

The invention relates to a technique for detecting temperature by using identical fiber grating as a sensor, and discloses a temperature detection system which has relatively low cost and can perform space orientation, aiming at overcoming the defect that the prior temperature detection system can not perform space orientation. The fiber bragg grating temperature detection system comprises a laser, a coupler, a circulator, a sensing network formed by FBGs and a sensing signal processing module. The sensing laser sent by the laser after being modulated modulation is divided into n paths to enter the sensing network through the coupler. In each path of sensing network, the sensing laser enters into the FBGs through the circulator. Back scattering light enters into the sensing signal processing module through the circulator. All FBGs in the sensing network have substantially identical central reflection wavelength. The invention is used for temperature detection alarm, is particularly suitable for denser quasi-distributed detection of temperature, saves bandwidth source, does not need complex demodulating technology, and reduces the detection cost.

The invention relates to network remote control, in particular to a GPRS-based remote LED panel control system. The GPRS-based remote LED panel control system comprises an upper computer control terminal, a transit server and lower computer LED panels. The upper computer control terminal is in network connection with the lower computer LED panels through the transit server. According to the GPRS-based remote LED panel control system, remote control is achieved through the intranet penetration technology and the transit server, and each LED panel can be controlled by all networked PCs; wired control and wireless remote control are both achieved; the laying cost of communication lines and the communication fault rate are reduced; the stability and timeliness of LED information transmission are enhanced; the LED panels can receive information issued by the upper computer control terminal at any time, so that the working efficiency of the LED panels is greatly improved; the remote transmission data volume of the LED panels is increased, the information is sent through a GPRS DTU, the TCP / IP network protocol is adopted, and the number of networked terminals is not limited; the remote application distance of the LED panels is extended, and the LED panels can be used at any places with GPRS network coverage without distance limitation.

The invention provides a mineral hydraulic bracket controller. The controller comprises a processor module, a first signal conditioning module, a second signal conditioning module, a first communication interface and a second communication interface, wherein the processor module generates a data frame signal or processes the data frame signal; the first signal conditioning module is connected with the first communication interface and the processor module, receives the data frame signal of a first adjacent mineral hydraulic bracket controller, reshapes and filters the data frame signal, and transmits the signal to the processor module for processing; the second signal conditioning module is connected with the second communication interface and the processor module; and the data frame signal transmitted by the processor module is received, filtered amplified and transmitted to a second adjacent mineral hydraulic bracket controller. The invention also provides a bracket controller system consisting of a plurality of mineral hydraulic bracket controllers and a corresponding communication method, so that remote transmission can be realized without a relay and a network terminator, and parts and cost can be saved.

The invention relates to a calibration method of a magnetic induction effect angle sensor, belonging to the technical field of sensors test and measurement. The method comprises a plurality of sub-calibration processes of a low-temperature segment calibration process and a high-temperature segment calibration process, wherein each sub-calibration process comprises the following steps that: for the calibration of a first calibration test point of a first chip: a calibration system controller first controls a motor to input a rotation angle into the rotation direction of the first calibration test point; the calibration system sends a rotating in-place instruction; the angle sensor collects and processes relevant data when detecting the instruction; and the calibration system rotates for a unit step length and cycles accordingly until the calibration of all calibration test points is completed after receiving the instruction. The calibration method can realize the operation inside the angle sensor, substantially improves the angle measuring precision of the magnetic induction effect angle sensor through the calibration, and is applied to the quick and accurate calibration of the magnetic induction effect angle sensor during the mass production.

The invention provides a method of remote control of an indoor antenna individual body so that working conditions of each indoor antenna can be obtained rapidly. The mobile communication indoor distribution system device remote control method comprises the following steps: fixing a radio frequency tag near the indoor antenna individual body; setting a coupler on an indoor antenna main feeder of a base transceiver station (BTS); setting a reading transponder communicated with the coupler; and setting monitoring software on a computer. The radio frequency tag uses electromagnetic radiation energy of the indoor antenna individual body to activate and send an address code of the indoor antenna individual body, therefore the monitoring software can monitor the working conditions of all radio frequency tags in a system according to preset alarm conditions, and then the working conditions of the indoor antenna individual body are monitored. The mobile communication indoor distribution system device remote control method has the advantages of being rapid in finding and positioning of failures, free from wire arrangement, low in cost and the like.

The invention discloses a novel wireless-surrounded sound box, and relates to the technical field of sound boxes. A phase-reversing tube of the sound box is arranged on the upper end surface of a front shell; a bass unit is arranged on the upper side of the middle of the front shell; a treble unit is arranged at the lower end of the bass unit; alto units are symmetrically arranged on two sides of the front shell; a code matching switch, a power indicating lamp and a single-pole / double-pole changing switch are respectively arranged on two sides of the treble unit; a signal input absence automatic power failure circuit and a 2.4G wireless receiver are respectively arranged on two sides of the bass unit; and an annular transformer is arranged at the rear end of the bass unit. The novel wireless-surrounded sound box is a wall-mounted surround box body with 2.4G active power emitting and receiving functions and is suitable for various environments; and due to the design of freely switching a single-pole manner to a two-pole manner, the problem about over-5.1 system configuration of family cinemas is solved effectively.

The invention relates to a broadband and reconfigurable OAM antenna. The antenna comprises metal spiral arms (1), a dielectric substrate (2), coaxial probes (3) and a floor (4). The metal spiral arms are arranged on the upper surface of the dielectric substrate, the spiral direction of the metal spiral arms is opposite to the rotation direction of an OAM beam wave finally generated by the antenna, and the quantity of the metal spiral arms can be flexibly set according to needs; the coaxial probes are used for feeding the metal spiral arms, the number of the coaxial probes are equivalent to that of the spiral arms, and the multiple coaxial probes are loaded with uniform-amplitude and in-phase feed signals; and the floor is arranged on the lower surface of the dielectric plate, and the radius of the floor is far smaller than that of the dielectric substrate. The antenna is simple in structure and easy to implement, has broadband operation and pattern reconfiguring capability, and can be expected to be applied to an OAM wireless communication technology, thereby improving spectrum effectiveness and system capacity of the wireless communication system.

The invention relates to a method for realizing call service in group communication. Wherein, in the communication, there are several users in communication and in same group, the first group members use ascending signal channel to send message, and the members of other groups use descending signal channel to receive message. And the invention is characterized in that based on the priority information of group members set in the data memory network unit in group system, distributing ascending signal channel for the group members. The invention can realize signal channel share in one region, all group members of said region use one transmission signal channel (TCH signal channel). And in one call, it processes half-duplex communication, and other group members occupies ascending to communicate that at one time, there is one group member uses ascending to communicate, while the high-priority group member can take the communication priority of low group members.

An antimicrobially active peptide comprises the DCD protein or a fragment of DCD, preferably derived from the C-terminal region.

The invention discloses an individual soldier training simulation system, which relates to the field of laser confrontation tactical training equipment. The individual soldier training simulation system is based on general packet wireless ZigBee short-distance communication technology realizes the individual combat training system of wireless interconnection between individual wearable device components. The individual training simulation system uses GPRS communication, as long as there is a mobile signal, it can be used as a confrontation site, and the number of personnel is not limited, and it can realize cross-regional and large-scale inter-group confrontation training.

The embodiment of the invention discloses a hydraulic test system which comprises a control unit, a hydraulic test unit and a diameter measurement unit, wherein the control unit, hydraulic test unit and diameter measurement unit are cooperated with one another to automatically realize a pressure resistance test, fatigability test, compliance test and / or pressure self calibration of a target ball sac; the control unit is used for setting the parameters of each test process; the hydraulic test unit is used for specifically implementing each test process; and the diameter measurement unit is used for measuring the diameter of the target ball sac. The hydraulic test system disclosed by the embodiment of the invention can automatically implement the fatigability test, pressure resistance test, compliance test and / or pressure self calibration of the target ball sac. The number of test programs stored by the control unit is not limited, and the setting of program parameters also can be performed in the control unit, thus being relatively visual and efficient. The software of the control unit can control the operation of the hydraulic test unit, and the hydraulic test unit does not need to be repeatedly operated during each operation.

A system and method for large scale distributed simulation for realistic multiple-agent interactive environments are disclosed. A particular embodiment includes: generating a vicinal scenario for each simulated vehicle in an iteration of a simulation, the vicinal scenarios corresponding to different locations, traffic patterns, or environmental conditions being simulated; assigning a processing task to at least one of a plurality of distributed computing devices to generate vehicle trajectories for each of a plurality of simulated vehicles of the simulation based on the vicinal scenario; and updating a state and trajectory of each of the plurality of simulated vehicles based on processed data received from the plurality of distributed computing devices.

The invention provides a multi-station rapid configuration device and a configuration method thereof for FPGA test. A test module sends an operation instruction to a configuration module, realizes selection of operation stations, selection of configuration readback operation type and selection of configuration mode, and receives an operation result returned by the configuration module; the configuration module receives an operation instruction of the test module, and sends the operation instruction to a configuration adapter; and the configuration adapter, according to the operation instruction, finishes configuration of an FPGA chip to be tested and readback of configuration data and sends the readback data to the test module. The multi-station rapid configuration device and method realize configuration operation of a plurality of FPGA chips to be tested simultaneously, and realize readback operation of the configuration data, support selection of multiple configuration modes, are compatible with a plurality of test platforms, and realize isolation protection and dynamic level matching of the configuration adapter and the FPGA chip to be tested; the configuration adapter does not occupy test program vector and channel resources during working, thereby saving storage medium, and simplifying hardware design; and configuration data is flexible to update, and configuration time is saved.

The invention discloses a trackless train steering control device and a control method thereof and relates to the field of public transportation. A first train body and N trailer carriages are hinged to form a trackless train. The first train body is provided with a pair of wheel shafts of steering driving wheels. The steering driving wheels and steering angles thereof are controlled by a driver through a steering disk. The steering disk is provided with an angle sensor connected with the input end of a steering angle meter. The k trailer carriage is provided with steering wheels with steering mechanisms. The steering angles of the steering wheels are controlled by the steering mechanisms of the steering wheels. A controller is arranged on the first train body. The input end of the controller is connected with the output ends of a clock, an odometer and the steering angle meter. The output end of the controller is connected with the input ends of the steering mechanisms of all trailers through optical networks. The controller records time t(s) output by the clock, mileage (m) output by the odometer and the steering angles, output by the steering angle meter, of the steering driving wheels of the first train body simultaneously, in this way, the advancing track of the trackless train can be described completely, and accordingly the steering wheels of the trailer carriage are kept on the same track with the steering driving wheels of the first train body during advancing. The trackless train steering control device and the control method thereof are used for a trackless public transport system.

The invention discloses pneumatic mechanical mixing apparatus for underground water treatment. The apparatus is characterized in that the pneumatic mechanical mixing stirrer comprises an air inlet pipe which is connected with an air supply system, a stirring device which comprises a rotating part rotationally connected with the air inlet pipe, and a plurality of stirring blades which are arrangedin a radial direction with the rotating part as a center; the stirring blades are in a hollow structure; the inner space of each stirring blades communicates with the air inlet pipe; one side of the bottom of each stirring blade is provided with lateral open holes; and the hole opening directions of the plurality of stirring blades are same. The pneumatic mechanical mixing and stirring apparatus provided by the invention is suitable for the stage of underground water treatment and coagulation. The main functions of the pneumatic mechanical mixing and stirring apparatus are that on one hand, the reaction force of gas is utilized to drive the stirring paddles to rotate, so that the mixing efficiency of the underground water and a water treatment agent is improved, and on the other hand, thejet-flow action of compressed air jet is utilized, so that the underground water is in full disturbing contact with the compressed air, and thus the efficiency of the oxygenation and degassing is improved.

Characters of the invention are as follows. User, who watches TV programs from network, down loads stream media data of TV programs not only from stream media server, but also from other online users, as well as up loads own stream media data down loaded from stream media server to other needed users. After stream media data down loaded from stream media server by user are combined with stream media data down loaded from other users, the combined stream media data are played back through a playing software. The invented stream media server only needs small bandwidth to play TV program online in high quality. In the invention, quantity of users is not limited, and cost for playing back is low.

The invention discloses an unmanned aerial vehicle formation performance system based on UWB location and an implementation method thereof. An ultra broadband wireless communication technology and a time division TDoA technology are utilized to establish a three-dimensional location system applied to indoor and outdoor small areas; varieties of technologies of micro quadcopter formation navigationflight technology, a full-color LED light dimming technology and the like are combined to be applied to an indoor / outdoor small area performance system. In a three-dimensional location area, an aircraft colony performing navigation flight according to planned tracks, and color change of dimmable LED lamps arranged on a plurality of micro aircrafts is controlled to construct varieties of static and dynamic flight patterns, and stronger visual effect can be generated. As the time division TDoA technology based on UWB, a computer simulation micro aircraft colony flight pattern technology, an unmanned aerial vehicle colony flight pattern distribution storage technology and a PC coordinator synchronization and self synchronization combined technology are utilized, price of the whole system canbe reduced.

The embodiment of the invention discloses a positioning method and device. The positioning method includes the steps that a first reference node transmits broadcast signals two times at the interval of first time so that a mobile node and reference nodes can receive the broadcast signals and respectively measure the signal receiving time; after at least two reference nodes receive the broadcast signals, the reference nodes transmit respective reference signals after delaying respective preset time so that the mobile node can receive the reference signals and measure the signal receiving time; the mobile node calculates the difference between the distances from the mobile node to the two reference nodes according to the signal receiving time and the time or the time interval in the reference signals measured by the mobile node; the position coordinates of the mobile node are determined by the mobile node according to at least two distance differences and corresponding position coordinates of the reference nodes. Through the technical scheme, the mobile node can be self-positioned, and positioning is not limited by the number of mobile nodes.