238results about How to "Independent" patented technology

The invention relates to a somatosensory interactive broadcasting guide system and method based on free viewpoints. The system comprises a server side, a video transmission network and a client side, wherein, the server side comprises a multi-camera system, a video processing server and a streaming media server which are used for completing multi-channel video capture, panoramic video synthesis, H.264 encoding and RTSP (real time streaming protocol) streaming media service; the video transmission network is a local area network (LAN) or wide area network (WAN) based on a TCP/IP (transmission control protocol/Internet protocol); and the client side comprises a free viewpoint playing terminal and a somatosensory sensor, wherein, the free viewpoint playing terminal comprises functional modules which are used for completing video streaming media receiving and decoding, gesture recognition based on a somatosensory controller, free viewpoint generation and other tasks. The somatosensory interactive broadcasting guide system and method have the beneficial effects that by combining multi-channel video into panoramic video, software and hardware investment and technical cost can be saved by directly utilizing the currently mature video coding and streaming media transmission technology, and meanwhile panoramic seamless roaming at 360 degrees and free viewpoint switchover can be really realized.

The invention provides an online and intelligent optical cable monitoring and fault positioning system based on a GIS platform. The online and intelligent optical cable monitoring and fault positioning system comprises a monitoring unit and a positioning unit, wherein the monitoring unit comprises an intelligent diagnosis mainframe, a diagnosis unit and a PC terminal display unit, the intelligent diagnosis mainframe comprises a central processing unit and an optical time domain reflectometer module, an optical path switching module and an optical power monitoring module connected with the central processing unit, the diagnosis unit comprises a power module and a light source device, an optical coupling module and an optical protection module connected with the power module, and the positioning unit comprises a fault locator arranged in an optical cable. Information is processed by calling optical cable information in time, and meanwhile the system can flexibly utilize a geographic information system (GIS) technology, adopts rack-type integration, and is high in integration level, good in stability and high in expandability. When breakdown occurs, the system can clearly display fault GPS points and fault types, maintainers can perform accurate positioning through a GIS map, and accordingly the maintenance efficiency is improved.

The invention provides a fault-tolerant framework for a computer fault management system. The fault-tolerant framework is divided into two parts, namely a user space and a kernel space and comprises a fault management core unit 1), a checking point processing module 2), a fault management redundancy unit 3), an agent receiving module 4), an agent sending module 5), a kernel fault management core unit 6), a kernel event transmission channel 7), a kernel fault processing module 8) and a kernel fault management redundancy unit 9).

The invention provides a method for controlling axial direction of a high-precision magnetic bearing based on an interference observer. The method consists of a controller and the interference observer, wherein the interference observer comprises a Q filter and a rationalization generalized object inverse QGn part; the controller in a control system calculates according to displacement deviation to obtain basic control quantity so as to form a position closed loop control system; an interference value obtained by observation of the interference observer is negatively fed back into the basic control quantity to compensate exterior interference; and the formed current control quantity drives power amplification to realize high precision suspension of the magnetic bearing. The method leads differences caused by both exterior interference and objective parameter variation to be equivalent to a control input end, and introduces equivalent compensation into the control quantity to realize interference inhabitation. The method can carry out online observation and effective inhabitation against exterior interference which is not modeled or known, thereby improving control precision of suspension, and contributing to stability of the system.

The invention provides an application evaluation method, a terminal, and a server. The application evaluation method includes the steps: the terminal acquires a test file of a specified application; the terminal executes the test file to test the specified application so as to obtain test data; the terminal reports the test data of the specified application to the server so that the server acquires evaluation results for the specified application according to the test data. Automatic testing execution and data collection for the specified application can be achieved via a third-party evaluation system composed of the terminal and the server, so that uniform testing execution scheduling, data aggregation and evaluation analysis are achieved. The third-party evaluation system is used for evaluation, so that the method is independent and objective as compared with the prior method in which evaluation is completely based on logs recorded by the application itself; the test data obtained, such as response time, are more accurate and comprehensive; accordingly, evaluation results based on the test data are higher in accuracy.

The invention relates to a circuit-type fishpond breeding system integrating a circulating water treatment process. The circuit-type fishpond breeding system integrating the circulating water treatment process comprises a fishpond shaped like an annular runway, and sewage treatment systems arranged in an inner ring of the fishpond. Each sewage treatment system comprises a vertical flow type solid-liquid separator (1), wherein a sewage discharging groove (5) perpendicular to the water flow direction is formed in the bottom of the fishpond and communicated with an inlet of the vertical flow type solid-liquid separator (1), an outlet of the vertical flow type solid-liquid separator (1) is communicated with a micro-filtration machine (2), outlet water of the micro-filtration machine (2) adopts a water pump (3) and a water lifting pipe (4) for water lifting and is injected into a biological filter (6), the biological filter (6) is separated from an aeration oxygenation pond (8) through a separation plate and is communicated with the aeration oxygenation pond (8) through a through hole in the lower portion of the separation plate, a water falling pipe (7) is arranged on the lateral wall of the aeration oxygenation pond (8) and communicated with the fishpond, and the water outlet direction at the bottom of the water falling pipe (7) is the same as the water flow direction of the fishpond. The number of the sewage treatment systems is two, and the sewage treatment systems are evenly distributed in the inner ring of the annular fishpond in a central symmetry mode.

The present invention discloses a mobile phone multi-station parallel testing device and a realization method thereof, and the problems of complexity and low efficiency of existing mobile phone testing equipment are solved. The device comprises a sound insulation box body with a cabinet door, a multi-station parallel testing mechanism arranged in the sound insulation box body, an industrial control machine and a control circuit board. The multi-station parallel testing mechanism comprises a multi-station mobile phone carrier for placing multiple mobile phones, and testing stations fixed in the sound insulation box body and are corresponding to the positions of the multi-station mobile phone carrier for placing mobile phone, and at least two testing stations in the testing stations are used for testing different projects. The multi-station parallel testing mechanism also comprises a central rotation mechanism for rotating the multi-station mobile phone carrier such that the mobile phones placed on the multi-station mobile phone carrier are moved to another station from a current testing station. According to the mobile phone multi-station parallel testing device and the realization method, through time division multiplexing and multi-task parallel test, the working efficiency is four times of a traditional testing process in the condition of not adding hardware resources.

The present invention provides a memory data quick persistence method based on a storage-class memory. The method is based on a flat mixed memory architecture, and is implemented by collaborative design of a user layer and a kernel layer. The method comprises: abstracting an SCM with a certain capacity and data stored in the SCM into a persistent area; designing an application programming interface (API) at the user layer, and making a response to memory access of an application to the persistent area; extending a Buddy system of a kernel to implement heterogeneous mixed memory management; and designing a persistent area manager to implement the functions of persistent mapping in the persistent area, metadata management in the persistent area and the like. According to the memory data quick persistence method based on the storage-class memory, a data linearization process required for data persistence in a traditional storage architecture can be avoided, direct access and in-place update of persistent data can be implemented, hierarchy invoking of a software stack in the traditional architecture is simplified, the I/O bottleneck can be effectively alleviated, and the memory access performance of the persistent data can be improved.

An image forming apparatus which allows an independent and easy replacement of replaceable image forming devices includes an image forming unit detachably provided in the image forming apparatus. The image forming unit include a housing, a plurality of replaceable devices, and a nonvolatile memory. The plurality of replaceable devices are replaceably mounted inside the housing. The nonvolatile memory is mounted on the housing and stores lifetime information of the image forming unit and each one of the plurality of replaceable devices.

The invention discloses a method of a home terminal to access message middleware based on the MQTT protocol, and relates to the technical field of the Internet of Things. The method comprises the following steps: S1, importing home terminal information; S2, requesting, by the home terminal, an authentication service platform, and performing calculation encryption to obtain a check code; S3, sending, by the home terminal, the check code to the authentication service platform for comparison and verification, and returning a security token if the check code is consistent; S4, requesting, by the home terminal carrying the security token, the authentication service platform to obtain the message middleware connection information; and S5, accessing, by the home terminal, the message middleware,and calling, by the message middleware, an authentication service platform interface to perform client identity authentication. According to the method, the authentication information of the message middleware and the device is separated, which is beneficial for the enterprise to perform unify and centralize the device access information and the security token information of the message middleware, thereby reducing the pressure of the message middleware server because of the batch access authentication, and greatly improving the system performance and the security.

A locking device for a battery block of a ground transportation vehicle comprises the following components: a battery lock which is used for detachably locking a battery block in a frame of a ground transportation vehicle; and a removing lever which singly supports around an axle that is fixed on the ground transportation vehicle for assisting the battery block removing, wherein the removing lever is provided with a handle section composed of a first lever arm and a lever section composed of a second lever arm. The lever section partially pushes the battery block from the frame in removing.

The invention discloses a building damage evaluation method based on a simplified cantilever beam. The building damage evaluation method specifically comprises the following steps: (1) vertically and uniformly distributing 5 or more than 5 sensors at the position of a framework structure floor, wherein the vertical connection line of the sensors must be perpendicular to building floor level; (2) actually detecting sensor signals when working conditions occur; inputting actually-detected data collected by the sensors to a computer system for being processed; (3) carrying out frequency response function analysis on the actually-detected data by a computer system to obtain power parameters of a certain order frequency, a corresponding modal and the like of the structure; (4) simplifying an actual measurement structure model into a cantilever beam model by the computer system; (5) taking the power parameter data as the basis and inputting the power parameter data into the cantilever beam model to obtain bending rigidity of each unit of the structure; and (6) carrying out evaluation on structure damages by using the structure unit bending rigidity obtained in the step (5) to obtain a detection identification conclusion. The building damage evaluation method has the advantages of simplicity in operation, strong operability and the like.

The embodiment of the invention provides a multi-user interaction augmented reality method and system, and the method comprises the steps: calculating the pose information of a virtual object on a screen of first user equipment according to the position of a virtual object placed in the screen of the first user equipment by a user and the camera information of the first user equipment; according to the pose information of the virtual object on the screen of the first user equipment and the model information of the virtual object, displaying the virtual object on the screen of the first user equipment; calculating pose information of the virtual object on a screen of the second user equipment according to the camera information of the second user equipment and the pose information of the virtual object in the world coordinate system of the first user equipment; and displaying the virtual object on the screen of the second user equipment according to the pose information of the virtual object on the screen of the second user equipment and the model information of the virtual object. According to the embodiment of the invention, augmented reality of multi-user interaction is realized,and certain independence is achieved.

The method includes following steps: the finger-guessing module and heartbeat detected module are used to generate at random a main control node based on integer finger-guessing value; when the main control node gets away from cluster, the new cluster can automatically elect new main control node.

The invention discloses a collaborative defense method for network protection and system. The system comprises a decision-making and deployment layer and a collaboration and monitoring layer, whereinthe decision-making and deployment layer uses an acquired network security early warning event, a defense intension is formulated according to the defense purpose of the network security and the current situation of the network security, a network defense strategy is later generated by a decision-making engine, and a defense task is deployed according to the defense strategy; the collaboration andmonitoring layer comprises a control center and network security devices, thereby realizing collaborative task deployment between network security devices and real-time monitoring on the network defense condition; the control center is in communication connection with the decision-making and deployment layer and the network security devices for data flow control and logical control; and the control center comprises a collaborative defense strategy analysis module, a collaborative defense strategy subscription module and a collaborative defense strategy distribution module. A collaborative defense solution with security perception, collaborative protection and centralized management as the core can be given, and an active, integrated and comprehensive dynamic security protection system isrealized.

The invention relates to the design of a notch ultra-wideband antenna and belongs to the technical field of propagating and receiving electromagnetic waves. The invention provides a novel multi-notch ultra-wideband antenna with stop-band units simultaneously loaded to a feeder and a radiation patch; specifically speaking, an open slot of 1/4 wavelength is formed in the radiation patch and C-shaped half-wavelength open-circuit resonance units different in size are loaded at the two sides of the feeder, and therefore, a three-stop-band notch ultra-wideband antenna is realized; the three-stop-band notch ultra-wideband antenna is capable of filtering out interferences from WiMAX (Worldwide Interoperability for Microwave Access) (3.3-3.6GHz) and WLAN (Wireless Local Area Network) (5.15-5.35GHz, 5.725-5.825GHz) systems. The antenna has the advantages of independently adjustable frequency point of each stop-band and independently adjustable bandwidth of each stop-band. Simulation results and actual measurement results prove excellent multi-frequency filter characteristic of the antenna.

The invention discloses a polarization diversity double-channel speed and distance measuring coherent laser radar measurement method and device. A laser beam output by a laser source is divided by a first polarization beam splitter into a speed measurement light beam and a distance measurement light beam which are orthogonally polarized; the speed measurement light beam adopts quadrature demodulation coherent homodyne Doppler for laser speed measurement; and the distance measurement light beam uses pseudo-random code high-speed phase modulation for laser distance measurement. The speed and distance of a long-distance target are measured precisely and synchronously by means of polarization diversity, the whole system is small, operation is easy, and the development prospects are good.

The invention provides a random access method based on a ZadOff-Chu (ZC) sequence. According to the random access method, when a time domain ZC sequence that satisfies a target sampling rate is generated at a sending terminal, a simplified deformation form of a frequency domain ZC sequence is directly generated; and then a time ZC sequence that satisfies a target sampling rate is generated according to the simplified deformation form of the frequency domain ZC sequence, so that a processing flow and a calculating complexity of a random access sending terminal are simplified; moreover, when a receiving terminal carries out random access detection and timing estimation, a local frequency domain ZC sequence is generated with regard to a scheme in which correlated calculation is carried out by employing a frequency domain method; and meanwhile, a common factor is moved after an IDFT conversion or the public factor can be replaced by an arbitrary non-zero constant, so that a processing flow and a calculating complexity of a random access receiving terminal are simplified. In addition, the invention also provides a method for generating a frequency domain ZC sequence. According to the invention, a calculating complexity of a ZC sequence can be reduced; and a processing flow and a calculating complexity of any technical scheme employing the ZC sequence in a communication system can be reduced.

The invention relates to a fault identification method for an isolated neutral system. According to the method, zero sequence voltage abrupt change amount detection is additional arranged in the initial phase of the algorithm and single-phase earth fault line selection is judged; then in order to reduce harmonic interference and accurately judge initial time of the fault, a negative sequence amount threshold value is set so that negative sequence amount of unbalance in normal operation is avoided; and non-earth fault line selection is judged according to the characteristics that zero sequence and negative sequence components do not exist in the system and high fault abrupt change current exists in the fault line when three-phase short circuit occurs. Group amplitude and phase comparison and zero sequence reactive power direction line selection methods are integrated in the aspect of algorithm, and variable threshold detection is additionally arranged so that interference of harmonic waves on the line selection process can be effectively reduced, and the complete fault identification method for the isolated neutral system is formed.

The invention provides a crawler travelling stacker. The crawler travelling stacker comprises a rack as well as a feeding device, a discharging device and a control system which are arranged on the rack. The crawler travelling stacker is characterized in that the feeding device and the discharging device are connected through a slip material transition bin; the slip material transition bin is arranged on the rack; a travelling mechanism is arranged at the bottom of the rack and served as a crawler travelling mechanism; the feeding mechanism comprises a fed material lifting mechanism; the discharging mechanism comprises a cantilever pitching mechanism and a cantilever slewing mechanism; and the control system is used for controlling the travelling mechanism, the fed material lifting mechanism, the cantilever pitching mechanism and the cantilever slewing mechanism. The crawler travelling stacker provided by the invention can directly receive materials from a high-capacity dump truck, so as to improve the operational capability; by adoption of the crawler travelling mechanism, the crawler travelling stacker can move and change directions flexibly and stack the materials at any position of a site, and thus the utilized space of the site is enlarged; and the crawler travelling stacker can adapt to stacking sites with relatively complex working conditions, can pass through a place where bulk materials are stacked, is relatively strong in climbing capability, and can adapt to various working conditions of the stacking sites.

The invention relates to a signal demodulation method based on machine learning, relates to demodulation of signals in a single modulation mode and signals in various hybrid modulation modes, and aimsat solving the problems that different hardware circuits are needed for demodulation when the signals in different modulation modes are demodulated at present, and the signals in various unknown modulation modes are difficult to demodulate. The method comprises the following steps of 1, acquiring an original baseband signal, processing the baseband signals to obtain a noise signal, constructing adenoising auto-encoder, and carrying out denoising processing on the noise signal to obtain a signal after denoising processing; 2, obtaining a trained denoising auto-encoder network and parameters;3, constructing a signal demodulation model based on a convolutional neural network; 4, obtaining a trained signal demodulation model; and 5, cascading the trained denoising auto-encoder network and the signal demodulation model together, and demodulating the signals in the single modulation mode and the signals in various hybrid modulation modes. The method is used for the field of signal demodulation under a Gaussian white noise channel.

The invention discloses a multifunctional robot end effector for working at heights. The end effector comprises a driving part and an en effecting part, wherein the driving part is composed of a base cover, a front base, a back base, a worm, a worm gear, a driven rod, a harmonic reducer assembly and a drive motor; the effecting part comprises a clamp, a motor frame, a cutting operation motor, a circular saw blade, a cutter groove and an operation pin; the drive motor drives the worm mechanism to drive the clamp to realize the opening and closing motions of a clamp holder through the harmonic reducer assembly, the cutting operation motor drives the circular saw blade to rotate at a high speed, and hanging objects are cut under the matching of the cutter groove. The multifunctional robot end effector can be arranged on an operation arm, and can realize various working at heights through special wrenches, U-shaped rings and the like; the robot end effector has the functions of clearing the hanging objects on high voltage wires, repairing the high voltage wires with preformed armor rods, screwing vibration-proof hammer nuts, pulling and disassembling opening pins on a space-stop rack with four forks and the like; the multifunctional robot end effector is simple in structure and convenient to install and operate.