891results about How to "Solve space problems" patented technology

The invention relates to an automatic parking system. The automatic parking system comprises an environment acquisition sensor used for detecting the surrounding environment of a vehicle, and sending the acquired data to a central processing unit, a human-computer interaction unit used for providing an interface for observing the surrounding environment information of the vehicle and interacting with the system by a driver, the central processing unit used for creating a parking environment map according to the received surrounding environment data of the vehicle and sending the parking environment map to the human-computer interaction unit, planning an expected parking path according to the received parking space selection information of the driver, the acquired actual position information of the vehicle and the parking environment map and sending the expected parking path to a bottom-layer control module, and the bottom-layer control module used for triggering the vehicle to carry out a corresponding operation according to the expected parking path sent by the central processing unit, so as to finish parking. The fully-automatic parking technology disclosed by the invention solves the problems that a parking space is narrow and a common driver difficulty parks the vehicle in place, which are brought by an urbanization process, and has a re-planning capacity.

The ivnention discloses a multi-media real time control lessons giving system based on IP network, it is made up of lessons giving end, listening end, class service center and multipoint control unit(MCU); it realize a live telecast of teaching through multi-media transcribing the teaching spot and network transmission, through multi-media and multi-mode intercommunication network the teachers and the students natural blackboard-writing teaching by the teacher, teaching content retrieving, share of applied procedure, teaching software skimming, electronic white board, real time control teaching software and the class management function, it broads the teaching scale.

The invention discloses a mixed bipolar DC transmission system. The system comprises a rectification converter station and an inversion converter station which are connected through a DC transmission line, wherein the rectification converter station is formed by two thyristor converters through serial connection, and the serial connection node is grounded; and the inversion converter station is formed by two modular multilevel converters (MMCs) through serial connection, the serial connection node is grounded, and positive and negative ends after serial connection are connected with one-way connection power devices. The system has the advantages of low cost and loss, high reliability and the like of the existing thyristor converter, flexible control of the MMCs, low harmonic, active-reactive power decoupling control, low dependence on an alternating current system and the like; and the system is divided into positive and negative poles, so that operating reliability is strengthened, and the power devices provided with the one-way connection capacity and additionally arranged at outlets of inverters can effectively handle DC faults. The system is suitable for occasions such as high-power long-distance high-voltage DC transmission and island current delivery, provided with broad development space, and worthy of being popularized vigorously.

The invention provides an implementation method and system of a bluetooth key to a car. The implementation method of the bluetooth key to the car comprises the following steps: receiving vehicle use information at least comprising a secrete key to a used car, which is sent by a server, with a vehicle-mounted T-Box; establishing connection with a mobile terminal by bluetooth; performing secret keyauthentication on the mobile terminal according to the secrete key of the used car; after the secret key authentication is passed, sending an unlocking instruction to an electronic control unit of thecar, so as to unlock the car; receiving an operation instruction of the mobile terminal and sending the operation instruction to the electronic control unit of the car, so as to control the car. According to the implementation method, by performing bluetooth secrete key authentication on the vehicle-mounted T-Box with the mobile terminal, an operation of opening a door of the car is implemented,the traditional hardware key is substituted, tedious operations of finding the key and operating the key when the vehicle is used by a user are avoided, the problem of the limitation of car renting time and space can be effectively solved, and the convenience of use of the car is improved.

The invention discloses a six-degree-of-freedom humanoid robot arm, and relates to a robot arm. The invention aims to solve the problems that the existing robot arm is cumbersome in joint structure, heavy in self weight, low in load bearing ratio and complicated to control. A shoulder rotating joint, a shoulder joint, an upper arm, an elbow rotating joint, a elbow swing joint, a fore arm, a wrist rotating joint, a wrist swing and a hand are sequentially arranged from top to bottom, wherein an arm swing motor is connected with a worm by virtue of a conveyor belt, an arm rotating motor is connected with a shoulder swing support by virtue of a conveyor belt, an upper arm shell is arranged between a shoulder joint and an elbow joint, an elbow rotating drive motor and a speed reducer are sequentially arranged in the upper arm shell from top to bottom, an elbow swing joint motor is arranged in an elbow joint shell and is connected with an elbow joint conveyor belt, an elbow joint speed reducer is arranged in the elbow joint shell, a hand connecting support is arranged between the fore arm and the hand, a wrist joint swing motor is arranged on one side of the hand connecting support, and a wrist joint rotating motor is arranged at the upper end of the hand connecting support. The six-degree-of-freedom humanoid robot arm is applied to a humanoid robot.

Embodiments of the present invention provide a radio frequency signal transceiving device and an electronic apparatus. The radio frequency signal transceiving device comprises a transceiver, an amplifier unit connected with the transceiver, a first path used for transmitting a first radio frequency signal of a first frequency band and connected with the amplifier unit, a second path used for transmitting a second radio frequency signal of a second frequency band and connected with the amplifier unit, and a third path used for receiving a third radio frequency signal of the first frequency band and a fourth radio frequency signal of the second frequency band and connected with the transceiver. According to the embodiments of the invention, on the premises that the number of radio frequency devices is reduced, the layout space is saved and the requirement of an antenna switch port is lowered, the downlink carrier aggregation is realized.

The invention provides an audio-video sharing method and system. According to the audio-video sharing method and system provided by the invention, a particular sharing transmission means is used; storage and sharing release processing works of audio-video data are completed through an FMS (Flash Media Server); acquired audio and video data after being subjected to encoding through a streaming medium are uploaded with an RTMP (Real Time Messaging Protocol) to the FMS by using an upload terminal; the uploaded audio and video data after being subjected to combination and encoding are released with the RTMP to a share user terminal by using the FMS so that the audio-video data upload and sharing release are simultaneously with real-time transmission performance and the real-time sharing of the audio-video data can be realized; the problem of occupation of the storage space of two-side terminals of the upload and the sharing is solved with the help of the RTMP so that a long time audio-video sharing of a mobile terminal is ensured to be possible; and the audio-video sharing method and system are combined with a sharing service, so that a user is convenient to timely request on the shared audio-video data at different times and places or on terminals, and the service application range is promoted to expand.

The invention discloses a chlorophyll a concentration inversion method and system. The method comprises the following steps of: S1: acquiring multispectral remote sensing data of an environment satellite No.1; S2: judging whether the date of the acquisition of the multispectral data exists or not; if the date exists and is matched with a chlorophyll a concentration seasonal inversion model, selecting a chlorophyll a concentration seasonal inversion model according to the date to calculate chlorophyll a concentration; otherwise, selecting a waveband-optimization-based chlorophyll a model to calculate the chlorophyll a concentration. Through the utilization of the multispectral and hyperspectral data of the environment satellite No.1, the problem that an inversion model is limited by time and space can be solved, and the automatic operation and service operation of a computer can be realized.

The invention relates to a centralization remote power feeding system including a primary device machine room arranged with wireless primary devices and power supply primary devices, which include an inverter and a transmission primary device for converting the external electricity 380 V industrial electricity into the -48 to 24 V DC to access to the wireless primary devices to cause the wireless primary devices operate normally; the -48 to 24 V DC is converted to the 220-380V AC through the inverter of the power supply primary devices, then the power is transmitted to the farend unit of the farend covering system of the base station part newly built through the common rod transmission mode of the power transmission line and the optical fiber transmission line, providing the stable power to the farend unit, thereby completing the construction of the whole base station. The invention reduces the building size of the base station, saves the project invest and advances the net operation safety reliability, which is applied in the signal covering of the road, the subway , the tunnel of the city and the small countryside base station.

The invention relates to a human traffic prediction method based on a Wifi positioning and cloud data processing technology. Compared with the prior art, the defect that no human traffic prediction method is achieved is overcome. The method includes the following steps of acquiring basic data, uploading the data to a cloud, screening positioning data, matching the positioning data with urban road coordinates and predicting the human traffic. According to the human traffic prediction method, the road segment average movement speed is used as a basic traffic parameter, based on the statistic analysis of a historical database, the average movement speed of an area in a future time period is predicted, and thus the human traffic can be predicted.

The invention discloses a method for controlling code rate of secondary AVS encoding of a video signal, which has the advantages of: more according with an SSIM value of a human eye system by performing detailed statistic and record of important encoding information of the video signal in primary encoding in light of the analysis of the important characteristics of AVS encoding; analyzing the video characteristics, such as complexity, of each scene and each frame according to the statistic data during data processing, and effectively reregulating the total number of bits and distributing the bits to each frame on the premise of meeting a VBR code rate and a buffer underflow limit; and calculating a quantization parameter according to an R-D model and properly and slightly regulating the quantization parameter in secondary encoding. The method can ensure total bit number estimation and the buffer limit, can achieve constant video quality with extremely small SSIM and PSNR fluctuation, is incomparable to a single code rate control method, and solves the contradiction between video quality and total storage space in the field of video storage and application.

The invention relates to an LED lamp bulb which belongs to the technical field of LED semiconductor lighting. The LED lamp bulb comprises a lamp base, a lamp holder, a driver, a radiator, LED light source assemblies, a reflecting shade and a transparent shade, and is provided with a luminous zone composed of two or more independent small luminous zones, wherein each small luminous zone is composed of an independent radiating body on the radiator, one LED light source assembly, the reflecting shade and the transparent hood; the independent radiating body is a surface radiating body which extends out from the upper part of the radiator; the LED light source assembly is fixed on the radiator; the reflecting shade is fixed on the radiator; the transparent shade is fixed on the radiator and covers the upper part of the radiator and the LED light source assemblies installed on the radiator; the lower part of the radiator is a hollow radiating chamber; and the driver is installed on the lamp holder and in the radiating chamber of the radiator. The invention has the advantages of novel and unique structure, scientificity, reasonableness, convenient and fast assembly, low cost, good integral artistic quality, beautiful appearance, large radiating area, favorable radiating effect, long service life and the like.

The invention discloses a three-dimensional induced polarization method advanced forecast system carried by an earth pressure balance shield, and a detection method. The system penetrates a needle-like electrode into soil for power supply and acquisition by use of a push electrode system carried by a cutter head and overcomes the difficulty of zero detection space in a conventional earth pressure balance shield. Detection currents are enabled to be distributed forwards by use of a shielding electrode, and a guniting device on the cutter head injects a high-resistance grouting material towards soil around the cutter head and the shield, and the difficulties of electromagnetic interference and conduction of currents by taking the shield as a good conductor are overcome. By use of automatic control in a whole process, multipath parallel acquisition and a rapid inversion means, the difficulty of small detection time is overcome. The method provided by the invention realizes detection of spherical weathering bodies, soft and hard layered strata, front full-section hard rocks, pebble layers and muddy layers by use of resistivity differences among geologic bodies; and detection of water containing condition of a water-rich layer by use of excitation polarization half failure is realized.

The invention relates to a machine tool working condition real-time monitoring system based on a wireless sensor network. The torque, the temperature of a motor, the cutter loss condition, the workpiece clamping condition and other parameters are measured through a torque sensor, a temperature sensor and other corresponding sensors installed on a machine tool. Data are sent in a wireless and multi-hop routing mode, and after receiving a signal, a single chip microcomputer processes the signal in a simple mode. The single chip microcomputer sends the data to an upper computer, final processing and displaying are carried out through software, and if data are abnormal, an alarm is given in real time, intelligent feedback is achieved, and related actions are carried out for processing. All machine tools in a factory are merged into the network, the networking real-time monitoring of production machines of the factory is achieved, and the monitoring cover degree and real-time performance are greatly improved.

The invention discloses an equipment and a method for realizing registration and fusion of multipath video images to a three-dimensional digital earth system. The equipment comprises multiple video image acquisition devices respectively used for acquiring video images of one object from different angles to form multiple paths of video flows and decoding the multiple paths of video flows to acquire multiple video frames, a three-dimensional earth data acquisition device used for acquiring the three-dimensional scene information of all earth elements, the geographic space information and various types of attribute information of the earth object, a three-dimensional model construction device which is connected with the three-dimensional earth data acquisition device and is used for constructing and acquiring a three-dimensional geographic information scene model according to the three-dimensional scene information, the geographic space information and the various types of attribute information, a registration fusion device which is connected with the multiple video image acquisition devices and the three-dimensional model construction device, is used for realizing registration and fusion of multiple video frames to the three-dimensional geographic information scene model and is further used for displaying video images on the basis of the multiple video frames.

The system utilizes multimedia client end, retransmitter, retransmission service centre, class management and service centre to carry on three functions of video-audio class, data class and class management. The multimedia client end scattered at each small satellite station is connected to internal connected retransmitter through Ethernet and the retransmitter is connected to external connected server which connects to retransmission centre of server at main satellite station through two-way satellite network connection. The class service centre is at server of the main satellite station and the multimedia client end is connected to retransmission center at main satellite station server and class management and service centre.

The embodiment of the invention discloses an implementation method of Karaoke service based on an IPTV (Internet Protocol Television) system. After a first terminal and a second terminal form Karaoke connection, a service terminal establishes a play list and sends the play list to the first terminal and the second terminal; when the first terminal and/or the second terminal start(s) the play list, a server terminal synchronously sends media stream to the first terminal and the second terminal; the first terminal collects first audio stream of a song of a local terminal user in real time to be subjected to audio mixing playing with the media stream sent by the server terminal, and sends the first audio stream to the second terminal to be subjected to audio mixing playing with the media stream sent by the server terminal; and the second terminal collects second audio stream of the song of the local terminal user in real time to be subjected to audio mixing playing with the media stream sent by the server terminal, and sends the second audio stream to the first terminal to be subjected to audio mixing playing with the media stream sent by the server terminal. The embodiment of the invention also discloses a terminal, the server terminal and an IPTV (Internet Protocol Television) system. The invention can realize remote Karaoke interaction (such as chorus and the like).

The invention discloses a seedling picking mechanism for a plug-seedling transplanter and relates to the field of dry land transplantation machinery. The seedling picking mechanism comprises a planet carrier (1), a central wheel (2), a planet wheel A (3), a planet wheel B (4), a seedling picking claw (6), a connecting rod A (7), a roller (8), a groove-shaped cam (9) and a connecting rod B (10). The seedling picking mechanism has the advantages of high motion precision, easy control, simple whole structure, reliable work, convenient use, low manufacturing cost, high reliability and capacity of meeting complex requirement on field transplantation environment.

The invention discloses a desk capable of regulating desktop space. The desk comprises a desktop supported by a desk leg, a window is arranged on the desktop, a support is installed at the bottom of the desktop, a lifting plate corresponding to the window is installed on the support through a driving mechanism, and a lifting button for controlling the driving mechanism to drive the lifting plate to performing lifting towards the window is installed on the desk leg or the desktop. A baffle plate fastened together with the window is hinged to the window or the upper end of the support, a supporting rod capable of supporting the baffle plate when articles on the lifting plate rise to the window is installed on the driving mechanism, the driving mechanism comprises a vertical screw which is driven by a motor to rotate, the screw is connected with a nut in threaded mode, the driving mechanism comprises a sliding rod which is arranged parallel to the screw, a sliding sleeve is slidably sleeved on the sliding rod, the sliding sleeve and the nut are fixedly connected together through a beam, and the lifting plate is installed on the beam. The desk capable of regulating the desktop space can facilitate office, can transfer large office equipment so as to be suitable for meetings or visitor receiving occasions, can recover office states rapidly, and can be applied to various offices.

The invention discloses a main memory database access optimization method on the basis of a page coloring technology. The method comprises the following steps of: firstly, carrying out sorting on an access sequence of all data pages of a weak locality dataset according to page colors and carrying out grouping on all the data pages according to the page colors; then scanning all the data pages of the weak locality dataset according to a sequence of grouping the page colors; furthermore, presetting a plurality of memory pages with the same page color into a page color queue, wherein the page color queue is used as a memory cache before the memory pages are uploaded into a CPU (Central Processing Unit) cache; and ensuring the data pages of the weak locality dataset to firstly enter the page color queue by an asynchronous mode and then be uploaded into the CPU cache to complete the data processing. The invention can solve the problem that in the main memory database application, a cache address space cannot be optimized and distributed for processes, threads or the datasets by the page colors, and effectively reduces cache conflicts between the datasets with different data locality intensities.

The invention discloses a large-scale open compound methane tank, including a fermenting tank (1), a gas collection and storage device (2), and an air feeder (3) connected with the fermenting tank, wherein, the fermenting tank includes a plurality of independent fermenting tanks which can be communicated or disconnected mutually. The methane tank also includes the gas collection and storage device, the air feeder, a solar warming device, a charging/discharging device and an anti-encrustation device of the methane tank. When in use, as the structure of the invention is provided with a plurality of independent fermenting tanks, the air can be fed continuously in the raw material renewal process; the charging/discharging device accelerates the material charging and discharging; the gas collection and storage device of the methane tank has low construction cost, a software cover can be opened or retracted according to gas production, a gas collection and storage chamber can be changed according to the methane quantity, the pressure in the gas collection and storage chamber can not be too high, and the solar warming device increases the temperature in the methane tank so as to lead the straw material to produce the methane under the suitable temperature in winter; and a circulating pump is used for spraying the methane fluid onto the straw material through a nozzle so as to avoid encrustation.

The invention relates to a multi-functional drilling machine. The multi-functional drilling machine comprises an electrically controlled system, a backstage hydraulic power system and an execution system, wherein the electrically controlled system comprises a remote control unit (17), an instrument desk (20) and a detection perpendicularity controller (23); the electrically controlled system provides hydraulic power and electrically controlled power of the whole equipment; the execution system comprises a fluid director (1), a power head (2), a clamper (3), a propelling frame (4), a hydraulic motor (5), a propelling frame hydraulic cylinder (6), a rotation control box (7), an amplitude transforming hydraulic cylinder (8), a track (9), a rear straight leg (10), a front straight leg (11), a control handle (12), a valve (13), a nozzle (14), a drill rod (15), a drill (16), a gear (21), a chain (22) and a lifting hydraulic cylinder (24). The multi-functional drilling machine can improves a work environment of workers, and can work in a narrow work space, and the equipment performance is improved by a large margin.

The invention discloses a water, fertilizer, air, heat and pesticide integration intelligent irrigation system for a farmland irrigation area. The system comprises field collection control subsystems,irrigation area control subsystems, a service cloud platform and an apparition terminal, wherein a plurality of field collection control subsystems are in communication connection with a plurality ofirrigation area control subsystems through a wireless node; the plurality of irrigation area control subsystems are connected with the service cloud platform through the wireless node; and the service cloud platform is in communication connection with the application terminal through the wireless node. The invention is a field intelligent trickle irrigation and spray irrigation control irrigationsystem based on the Internet, the Internet of Things, a remote sensing technology and a sensing and wireless transmission technology. Mass data of an irrigation unit is intelligently controlled to carry out big data analysis, an intelligent irrigation information service cloud platform is constructed to realize the accurate irrigation of farmland irrigation area, single-point soil moisture content, crop water shortage index and atmospheric evaporation ability index spatial variation problems and an irrigation differentiation criterion problem are solved, and irrigation automation, precision,institutionalization, platformization and standardization can be realized.

The invention provides a flexible solar wing used for satellite power supply and a two-degree-of-freedom storage device applied to the flexible solar wing. The flexible solar wing comprises elastic supporting rods and flexible wings, wherein the elastic supporting rods are installed on a satellite and stretch outwards; and the flexible wings are connected with the satellite and the ends, away from the satellite, of the elastic supporting rods. Solar batteries arranged in an arrayed mode are arranged on the front side of the flexible wings. The flexible wings are used for carrying the solar batteries, so that the flexible solar wing is folded conveniently, the occupied space is small, the plane after the flexible solar wing is unfolded is large, and the high-power supply requirement of the whole satellite can be well met by tracking the sun in a two-degree-of-freedom mode; and in addition, the weight of the flexible wings is low, and the problem that a solar battery assembly made of metal plates is large in occupied space and high in weight is solved.

The invention relates to a method and a system for space-efficient multi-pattern matching. Firstly, a novel data structure HashTrie for storing pattern string is proposed, in which an original pattern string matrix is stored in the form of one-dimensional table by using a bit vector table, thus avoiding the problem of state transition matrix of conventional method memory automations; resolving the special bit vector table by using the method of recursive Hash function so as to save memory space; in the process of calculating the Hash function, converting the Hash function into a simple and efficient bit operation by using bit operation; the adoption the Rank technology in HashTrie construction and key word searching increases space and time efficiency of search. The method and system herein markedly reduce memory overhead and pretreatment time, can meet the need of timelessness as required by a real-time intrusion detection system as for when rules come into effect, and is more suitable for handling multi-pattern real-time matching which features in comparatively large scale of pattern string collection and comparatively short length of pattern string.

The invention discloses a BIM-based construction site griddization management system and a control method thereof. The management system comprises a central processing device, a user terminal and a verification terminal. The control method comprises that: the central processing device establishes a virtual model of a construction site; the central processing device carries out grid partition of the virtual model to form construction units; dispatch lists are formed in accordance with a construction plan and are sent to the user terminal; construction teams enter into the construction units via the verification terminal by virtue of the dispatch lists and feed back construction information; and the central processing device updates the virtual model according to the construction information and adjusts the dispatch lists. The invention achieves satisfactory effects in aspects of progress control, construction quality, safe and civilized construction and the like, solves the problems of conflicts between time and space during construction and the problems of large-scale idleness and reworking that might follow, and helps construction enterprises to gain tangible economic and social benefit in the construction management process.

The invention aims to provide a novel heating fiber material with a bidirectional temperature regulating function and a preparation method thereof. The fiber material comprises phase-change materials and heating fibers. The preparation method is characterized in that the phase-change materials and the heating fibers are combined to form the heating fiber material with the bidirectional temperature regulating function. Phase-change energy storage technology and heating fiber technology are organically combined, so that active heat production and bidirectional temperature regulation are simultaneously realized.

The invention discloses a flexible clamp for pipe fitting welding between multi-section pipe fittings and between a pipe fitting and a flange, and an adjusting method thereof. The bottom of a base bracket is provided with a fixed end flange around Z-axis angle adjusting mechanism and a fixed end flange around Y-axis angle adjusting mechanism connected with an equant chute flange plate rotating mechanism; a top Y-direction displacement regulating mechanism, a vertical Z-direction displacement regulating mechanism and a top X-direction displacement regulating mechanism for regulating the pipe fittings and a flange Y-direction displacement regulating mechanism for regulating the flange are arranged on the upper part of the base bracket; and each mechanism is adjusted to make a positioning mechanism rotate around the X, Y and Z directions. The invention can be rapidly and accurately adjusted and positioned so as to clamp the pipe fittings according to diversified space trends of different pipe fittings, and a set of clamp can adapt to welding a series of pipe fitting sections in different specifications.