380results about How to "Simplicity guaranteed" patented technology

The invention discloses a substation secondary system operation and maintenance cloud platform, comprising in-place layers and a centralized control layer, which are configured to read data from a production management system directly to realize equipment management, operation management, fault handling, duty management and maintenance management. The in-place layers and the centralized control layer exchange power grid operation data by means of a dispatching data network, and exchange operation and maintenance management data by means of an integrated data network; each in-place layer comprises a substation control layer, a spacing layer and a process layer; each process layer comprises all primary equipment of a substation, and transmits information of the primary equipment of the present layer to the substation control layer by means of corresponding detection equipment; and each spacing layer comprises all secondary equipment of the substation, and transmits information of the primary equipment of the present layer to the substation control layer by means of corresponding detection equipment. The substation secondary system operation and maintenance cloud platform integrates the cloud computing technology, the big data technology, the Internet of things technology and the mobile internet technology, unifies data interfaces and dispatching among different secondary operation and maintenance systems in safety regions, and realizes good management of operation and maintenance information.

The invention discloses a method for multi-input multi-output transmission for precoding. The method comprises the following steps: a fundamental matrix is selected, a column vector is selected from the fundamental matrix according to the dimension of a precoding matrix under each rank, the precoding matrixes are combined into codebooks, and the codebooks are respectively stored into the transmitting end and the receiving end of a multi-input multi-output transmission system; the receiving end selects precoding matrixes from the codebooks, and feeds back the indexes thereof to the transmitting end; the transmitting end uses the precoding matrixes corresponding to the indexes when the next transmission is performed, performs linear transformation in spatial domain to signals to be transmitted and then transmits the signals. The invention also discloses a method for multi-input multi-output codebook coding for precoding. The method enables the system to meet the feedback expenses and obtains good performance gain.

The invention discloses an Internet+hazardous waste management system and method. The Internet+hazardous waste management system comprises a hazardous waste supervision unit, a hazardous waste generation unit, a hazardous waste transportation unit, a hazardous waste disposal unit, a cloud platform, an enterprise information management system and an early warning system, wherein data transmission is performed between the hazardous waste supervision unit and the cloud platform; data transmission is performed between the cloud platform and the hazardous waste generation unit, the hazardous waste transportation unit and the hazardous waste disposal unit; and the early warning system is used for receiving information transmitted by the cloud platform. Hazardous waste is effectively treated under the actions of the hazardous waste generation unit, the hazardous waste transportation unit and the hazardous waste disposal unit in sequence, and a repeated confirmation of hazardous waste and confirmation of transportation vehicles are involved, so that the safety of the hazardous waste is ensured, and the problem of loss is solved. The Internet+hazardous waste management system is firmly connected in structure and high in intelligence degree during use, and a small number of personnel participate. The method is compact in flow; illegal missing of the hazardous waste is effectively reduced; and the supervision strength of the hazardous waste is enhanced.

The embodiment of the invention discloses a mobile terminal and a method for opening a camera of the mobile terminal. The mobile terminal comprises the camera, a human body induction module and a processor, wherein the human body induction module and the camera are connected with the processor; the human body induction module detects non-contact user operation within a preset distance; a corresponding induction signal is sent to the processor; and the processor generates a trigger signal for opening the camera according to the received induction signal. A technical effect that the camera of the mobile terminal can be opened quickly without touching a screen of the mobile terminal or pressing down a key of the mobile terminal is achieved.

The invention relates to a seabed-based multipoint in-situ long-term observing system which comprises a platform frame, a floating body material, an underwater sound communication apparatus, a beacon receiver, a monitoring cabin, a control cabin, a release control cabin, a central rotary table, a balancing weight and a microelectrode probing system. A main body of the platform frame is of a cylindrical shape and is divided into four layers from top to bottom; the floating body material, the underwater sound communication apparatus and the beacon receiver are mounted in the first layer, the monitoring cabin, the control cabin and the release control cabin are mounted in the second layer, the central rotary table is mounted in the third layer, and the balancing weight is mounted in the fourth layer. The seabed-based multipoint in-situ long-term observing system provided by the invention effectively realizes a multipoint precise positioning function so as to acquire data of a plurality of probing points in a probing region as required. Finally, spatial distribution information of an active diffusion field can be analyzed to provide an important data support for marine environment effect estimation of oil spill and aquo-complex decomposing process, thereby providing support and service for key projects such as submarine oil extraction and pilot production of natural gas hydrates.

The invention provides a mapping method and device for an indication channel PHICH of a physical hybrid automatic repeat request to a physical sub-carrier, comprising a plurality of mapping steps of a frequency domain. The invention is characterized in that: a plurality of usable physical sub-carriers of an FDD system is evenly divided into four areas; the three resource groups of a PHICH are one-to-one correspondence with the three areas of the four areas. The invention has the advantages of ensured diversity gain of PHICH and simple realization and little influence on performance of other downlink physical channels.

The invention relates to a minitype portable type intelligent mobile robot system with multiple degrees of freedom used for treating small explosives. The system comprises a mechanical movement part and an electric control part and is characterized in that the robot system comprises a control unit module, a moving platform module, an energy source module, a mechanical arm module, a picture sensor module and a remote control module; wherein, each independent functional module is mutually connected by adopting a standard mechanical interface; an embedded type computer APM 7 as a main controller is adopted among all the CPU and the Ethernet or CAN bus as a master controller is adopted and each CPU is connected by Ethernet or a CAN bus; all central processing units adopt standard TCP / IP or protocol communication and the body and arm of the robot are respectively provided with a camera. The robot system is light in weight and convenient in carrying; the robot is provided with 12 degrees of freedom and can be run autonomously and can be carried out by remote video control by adopting the mechanical arm which can remove explosive substance with 8 degrees of freedom; the robot system can be run in all weathers and in all terrain and can be applied to the field of actual combat.

The invention discloses an image spelling method and a device thereof. Image shoot by various camera is corrected to a same plane for extracting characteristic to region with overlap shooting angle by various camera, processing characteristic matching to extracted various characteristic for obtaining image spelling position and spelling image with matched position. The method can link camera for monitoring same scene with various angle in display image information directly, let missionary seeing monitor effect directly. The method and the device can ensure visibility for monitoring video, increase using flexibility of the monitoring system and reduce working load of the missionary.

The invention provides a micro-power wireless networking and communication method, a master node and a system. The method is mainly applied to a communication system consisting of a master node and at least two slave nodes, and comprises the following steps: acquiring neighbor field intensity information tables of the at least two slave nodes by using the master node; traversing all paths ranging from the master node to each slave node according to the neighbor field intensity information tables; calculating the route weight value W of each path ranging from the master node to the slave nodes according to a formula; saving all paths ranging from the master node to the slave nodes and the route weight values W of the paths, which are taken as route information of the slave nodes, in a route table, and transmitting the route information of the slave nodes, which is taken as configuration parameters, to the slave nodes. Through the way, the communication instantaneity can be ensured, and the communication success rate can be increased.

The invention provides an urban convenient carpooling system and method thereof. The system is provided with a mobile phone of a user, a carpooling car and an information center, wherein a vehicle-mounted terminal, a GPS (Global Positioning System) navigator, a non-contact radio frequency identification card reader and a user memory are arranged in the carpooling car; and the vehicle-mounted terminal is provided with a GPS / GPRS (General Packet Radio Service) positioning communication module. As a data communication passageway and a management platform are provided between a driver and a carpooling user by using the information center and the vehicle-mounted terminal, and the phone number of the user serves as main operation data for the appointment and the implementation of the carpooling, the purpose of independent carpooling between the driver and the carpooling user can be achieved conveniently and quickly. When the carpooling system and method are adopted, the safety, reliability and convenience of the carpooling operation can be ensured, meanwhile the calculation and sharing of the carpooling fee can be realized conveniently and quickly.

The invention discloses a method for circularly reading and writing in a buffer zone, which comprises the following steps: when to-be-written data is written into the buffer zone but the tail space of the buffer zone is insufficient to store the complete to-be-written data, writing the to-be-written data from a starting position of the buffer zone and marking on the tail of data in the buffer zone; and when the data is read from the buffer zone and an address-reading pointer points at the mark, directly searching for the valid data position from the starting position of the buffer zone and then performing the subsequent data-reading operation. The invention also discloses a device for circularly reading and writing in the buffer zone. By using the method and device, the speed for reading data can be increased while the operation for reading data is simple and convenient.

Inputting speech includes receiving feature information obtained by a client, the feature information comprising speech signals and user feature image signals, recognizing first candidate recognition data matching the user feature image signals, determining target recognition data based at least on the first candidate recognition data, and outputting the target recognition data.

The invention provides a channel estimation method for a PDM-CO-OFDM (Pulse Duration Modulation-Coherent Optical-Orthogonal Frequency Division Multiplexing) system and relates to a system applying a multi-frequency code in a transmission process of digital information. The channel estimation method comprises the following steps of: designing and selecting a discrete guide frequency format at a sending end of the PDM-CO-OFDM system; sending information data and guide frequency data; utilizing a least square algorithm, namely an LS (Least Algorithm) algorithm, to carry out guide frequency point channel estimation on an orthogonal frequency division multiplexing mark by the information data and the guide frequency data received by a receiving end; carrying out linear interpolation on a frequency region and carrying out multi-wavelet de-noising on an obtained interpolation value; carrying out the linear interpolation on a time region; carrying out mark inner frequency averaging on an interpolation value result to finish combined de-noising; carrying out matrix inversion algorithm on a channel property subjected to the de-noising treatment; and finally, estimating sending data. According to the channel estimation method, based on a discrete guide frequency, the average combined de-noising of a multi-wavelet and a mark inner frequency region is used for carrying out channel estimation, so that defects that the calculation amount of the relative conventional OFDM channel estimation method is increased and the system expenditure is increased are overcome.

The invention relates to a laser detection and control system for barriers between a shield door of a metro platform and a train door, comprising a monitoring unit, a control unit and an alarm unit, wherein, the controller comprises a CPU module, a liquid crystal terminal, a signal isolator, buttons and a safety relay; generating lasers are respectively installed on a front bracket, and a laser receiver or a laser reflection plate is installed on a rear bracket corresponding to the front bracket; the control ends of the generating lasers are connected with the output end of the controller, and the output end of the laser receiver is connected with the input end of the controller; the corresponding output end of the controller is correspondingly connected with the control input end of the shield door; and the corresponding output end of the controller is connected with a buzzer and a caution light of the platform. The laser detection and control system realizes the intelligent operation of judging the existence of barriers between the shield door of the metro platform and the train door, has the advantages of compact integral structure, reasonable cost, easy and convenient installation, simple and intelligent operation, stable and reliable performance, higher practicability and favorable development prospect, and is applicable to metro platform.

The invention provides an interactive image processing method used for a video. The method comprises the following steps of extracting key frames from a video sequence; overlaying frames between adjacent key frames one by one to form a key frame cluster used for interactive marking; distinguishing the images of the key frames into a foreground area, a background area and an unknown area; carrying out spectral clustering and alpha value estimation on the key frames to obtain the sectional drawing result of the key frames; and finally, transferring the sectional drawing result of the key frames to the whole video sequence to obtain a final sectional drawing result. Because the foreground points are interactively marked on each key frame cluster, spatiotemporal information contained in the video sequence is fully utilized, and the naturalness and the intuition of user interaction are guaranteed on the basis of the user interface of the key frame, thereby conforming to the observation habit of a human visual system. Marking on the key frame clusters replaces independently marking on the key frames, and therefore the method has strong robustness for the situation with the big foreground object local action.

The invention discloses a photovoltaic high-frequency chain grid-connected inverter capable of restraining input low-frequency current ripples. The inverter comprises a first inverter, an LCL-T resonance network, a high-frequency transformer, a rectifier circuit, a direct-current filter circuit, a second inverter and an LCL filter. The input end of the first inverter is connected with a photovoltaic array, and the output end of the first inverter is connected with the LCL-T resonance network. The LCL-T resonance network comprises a T circuit which is composed of an inductor Lr, a capacitor Cr and an inductor Lk. The inductor Lr is connected to the output end of the first inverter in series, and the inductor Lk is connected with the primary side of the high-frequency transformer in series and then connected with the capacitor Cr in parallel. The secondary side of the high-frequency transformer is connected with the rectifier circuit, the direct-current filter circuit and the second inverter in sequence. The LCL filter is connected to the output end of the second inverter, and the output end the LCL filter is electrically connected with a grid. By applying the LCL-T resonance network to the photovoltaic high-frequency chain grid-connected inverter, the low-frequency current ripples in output current of a photovoltaic module can be effectively restrained.

The invention discloses a detection system of visible foreign matters. The detection system comprises a light source device, a detection observation device and a swing arm clamping device. The detection system adopts the lamp detection method principle, checks samples in polarized light and removes fatigue of human eyes. A swing arm mechanism simulating human hand actions is adopted so that action consistency is kept and guarantee is provided for result reproducibility. An observation window can be used for an operator to directly view the detection process, and a liquid crystal screen on the side of the observation window synchronously displays the process. An image collector is used for snap-shooting instant characteristics of the visible foreign matters, distinguishing image information in pictures and verifying accuracy of detection reports in picture mode. Therefore, influence of human factors on detection results is fundamentally removed.

The embodiment of the invention discloses a generation method of a question answering system, terminal equipment, a storage medium and the question answering system. The generation method comprises the steps of: obtaining a graphical question answering flow chart; generating a standardized code framework matched with the question answering flow chart according to graphic components contained in the question answering flow chart, wherein the graphic components comprise trading nodes which are associated with service interfaces for performing services in set types; generating custom codes whichare respectively corresponding to the graphic components and adding to positions, associated with the graphic components, in the standardized code framework according to custom configuration information matched with the graphic components in the question answering flow chart; and adding topic knowledge points corresponding to the question answering process modules into a knowledge base. Through the scheme of the embodiment of the invention, the fast call of an existing function or service is realized; the repeated writing or transplantation of codes for realizing the same function is avoided;the conciseness of implementation codes of the question answering system is guaranteed; and the rapid construction and update of the question answering system are realized.

The patent relates to a novel seal printer. A jet nozzle is driven to rotate and carry out print through a motor in a printer shell. The number of parts in the printer is reduced, the size of the printer is the same with that of a traditional seal, and the replacing of the traditional seal is realized. At the same time, a coaxial connecting device is arranged in the printer, the structure is simple, and a certain coaxiality difference tolerance is available. The printer is simple to mount and durable.

The invention discloses a total station-based remote large-view-field binocular calibration method. For realizing the method, the method involves a binocular camera, a total station and a marker, wherein a distance between the binocular camera and the marker is 100m; the distance between the total station and the marker is greater than 10m; and the binocular camera is electrically connected with acomputer system PC. The method comprises the following steps of (1), performing image acquisition: carrying out the image acquisition by utilizing the binocular camera; (2) performing angular point extraction: adopting a characteristic that one marker only has one feature point, wherein the angular point extraction is divided into two parts including angular point detection and sub-pixel positioning; (3) performing marker three-dimensional coordinate measurement: setting a single marker to only have one feature point, and when the number of markers is increased for meeting measurement demands, setting three-dimensional coordinates of the feature point of the marker measured by remotely utilizing the total station to be (X, Y, Z); and (4), performing camera calibration. The calibration method solves the problems of low precision and low flexibility of remote large-view-field calibration in an existing calibration method, and meets actual demands.

The invention discloses a high-speed non-contact photoacoustic imaging system based on combination of optical path modulation and sensitivity compensation. The system is characterized by comprising alaser emitting part, a reference arm, a sample-side part, an exploring-side part and a data processing part. By sending multiple pulse signals at equal intervals, a laser generator is triggered to emit multiple laser pulses to excite a sample, and meanwhile, the optical path of the reference arm is modulated in order to make at least one excited photoacoustic signal positioned outside a low-sensitivity area; the photoacoustic signals positioned outside the low-sensitivity area are selected for sensitivity compensation in order to increase the collection speed.

The invention provides a method and a device for mapping from an indication channel PHICH which has physical mixture and can automatically request for retransmission to a physical subcarrier, and the method comprises a time domain mapping step that on a time domain, when the PHICH duration is three OFDM symbols, each OFDM symbol is mapped with one resource; when the PHICH duration is two OFDM symbols, by using two continuous PHICH groups as a period, one resource group is mapped to the first OFDM symbol by the first PHICH group, and two resource groups are mapped to the second OFDM symbol by the first PHICH group, while two resource groups are mapped to the first OFDM symbol by the second PHICH group, and one resource group is mapped to the second OFDM symbol by the second PHICH group. The invention ensures the diversity gain of PHICH and the simplicity for implementing PHICH, and at the same time, the invention has little influence on the performance of other downlink physical channels.

The invention discloses a manufacturing process of shaft bodies of carbon-fiber arrow shafts. The manufacturing process is characterized by comprising the following steps of: pre-manufacturing plain glass fiber woven fabric and uni-directional carbon fiber weftless fabric which are dipped with resin; according to the different flexibility requirements of the carbon-fiber arrow shafts, calculatingthe plain glass fiber woven fabric and the uni-directional carbon fiber weftless fabric which need to be used, then winding the plain glass fiber woven fabric and the uni-directional carbon fiber weftless fabric in a layer-by-layer manner by adopting the direction of the central longitudinal axis of a core-rod mold as the gluing direction of the long edge of a fabric blank; integrally winding BOPP (Biaxially Oriented Polypropylene) belts on the wound core-rod mold so as to fix the fabrics; carrying out sectional curing treatment on the mold wound with the belts; and finally demolding, cuttingand grinding to obtain a finished product. The arrow shafts manufactured by using the process have the advantages that the linearity of more than 99% arrow shafts is within + / -0.004'(+ / -0.1mm); the flexibility is consistent; the production operation is simple and convenient; and the production efficiency is improved.

An intelligent biological characteristic identification system based on cloud computing of the invention comprises an acquisition system arranged on a client side, a template generation system and a general control system. The intelligent biological characteristic identification system based on cloud computing also comprises a comparison system and a biological characteristic database storing biological characteristics which are arranged on a cloud server. A system in a chip completes characteristic acquisition, template generation and general control. An upgrade configuration interface is reserved for a plurality of biological characteristic acquisition devices. The intelligent biological characteristic identification system is simple, but the function is powerful. The biological characteristic database and the comparison are completed on the cloud server. According to the system, the construction cost of the biological characteristic identification system is substantially reduced; and biological characteristic identification can be rapidly popularized to enter a civilian security field, and social stabilization is protected. Biological characteristic identification in a plurality of modes can raise the security and accuracy of personal identity authentication, and improve the security degree of security guard. The biological characteristic identification in the plurality of modes gives consideration to populations, whose certain biological characteristics temporarily loss efficacy or permanently lose efficacy.

The present invention belongs to the field of object tracking technology, and discloses a Doppler through-the-wall radar positioning method based on LASSO feature extraction. An LASSO frequency estimation algorithm is employed to separate components of echo signals after demodulation and estimate frequency features of interested object components; a positioning tracking algorithm is employed to estimate position information of an object in real time according to the instantaneous frequency of the object and combine an object motion locus so as to achieve tracking of the object. The Doppler through-the-wall radar positioning method based on LASSO feature extraction can effectively improve positioning precision of the object and can solve the problem of 'fuzzy frequency' on the basis of ensuring conciseness (only one emitter and two receivers are needed) and detection timeliness (fast computing speed) of a Doppler through-the-wall radar positioning system so as to achieve tracking positioning of multiple objects at the same time. Besides, the Doppler through-the-wall radar positioning method based on LASSO feature extraction does not need a tedious calculating process such as multi-channel data fusion and the like, is fast in computing speed, and has a wide application prospect in object tracking field of a Doppler through-the-wall radar.

The invention discloses a characteristic encoding method for recognizing digital image content, and relates to the technical field of signal and information processing. The method comprises the following steps: dividing an input image characteristic sequence into characteristic vectors with fixed length; acquiring sparse description of each characteristic vector by utilizing a sparse code; extracting an atomindex with the maximum weight from the sparse description of each characteristic vector; performing binaryzation processing for the index sequence; creating an atomic weight histogram; performing binaryzation processing; combining the binary sequences produced by the atomindex and atomic weight histogram to form image hash. With the adoption of the method, the characteristic vector of the image can be mapped to be a simple and short binary hash sequence, and the calculation complexity is small; in addition, the produced image hash is able to resist the content distortion caused by the image processing, and thus the image content can be efficiently and accurately recognized.

This invention relates to a method for increasing safety of hand call short messages which is first of all to judge if the ' short message cipher' function is on or off when accepting the request for operation to the short message input by a user, if it is 'off', then it allows the required operation, if it is 'on', it prompts the user to input the ciphered code and accepts it and to compare it with the preset one, if it's correct, it permits the required operation, if it's wrong, then it refuses the required operation. As an optimum optional example, the ciphered code of this invented short message cipher is that of a hand call. Since a user should input the set ciphered code when entering into the short message function and he can use the function only after the ciphered code is right.

The embodiment of the invention discloses a screen transmission processing method and device, equipment and a storage medium. The method comprises: determining that a source device is connected to a screen transmission device, the screen transmission device being used for being in communication connection with a target device paired with the screen transmission device, and determining that a screen transmission client is installed in the source device; determining that the screen transmission client is in a to-be-updated state; in response to the to-be-updated state, obtaining an update file of the screen transmission client from the target device through the screen transmission device; and updating the screen transmission client according to the update file. A program is burnt in screen transmission equipment; wherein the updating module is used for acquiring an updating file of a screen transmission client from target equipment and updating the updating file to source equipment. Thescreen transmission client is not burnt in the screen transmission device, the size of the screen transmission client is not limited by the storage space of the screen transmission device, the storagespace of the target device is generally far larger than the size of the screen transmission client, new functions of the screen transmission client can be continuously developed, and the performanceof the screen transmission client is guaranteed.