303results about How to "Real-time communication" patented technology

The invention discloses a multi-vision defect detecting equipment and a multi-vision defect detecting method for a large-size LCD glass substrate in a production line. For the equipment, a linear scanning imaging detection system is adopted for acquiring the high-definition gray image of an LCD glass substrate to be detected, and the equipment is simple in structure and convenient to operate; according to the method disclosed by the invention, the acquired image is processed, a kmeans clustering method is adopted to carry out defect existence judgment on the processed image of the LCD glass substrate, and by making the defect regions, the defect category is judged by a classification method of a support vector machine (SVM), and the defect quantity is counted. Processed image and detection results are transmitted to an office in real time by a filed bus control system for operators on duty to check, and the field production parameters are transmitted, so that remote monitoring of the system is realized.

The invention provides a tractor automatic navigation control system. The system comprises a navigation control device, a steering control unit and an electro-hydraulic proportion steering executing device, wherein the navigation control device receives GPS positioning data in real time, calculates a lateral deviation between a current tractor position and an operation navigation target, calculates a target steering angle of a steering wheel in a current control period according to the lateral deviation and a tractor running speed value measured in real time, converts the target steering angle into a steering control command and then sends the steering control command to the steering control unit; the steering control unit judges whether a steering angle measured value of the steering wheel of the tractor is less than a preset limit value; if the steering angle measured value is less than the preset limit value, the steering control unit compares the target steering angle with the measured value, calculates a PWM duty cycle according to a steering angle difference value and outputs a control signal for driving the electro-hydraulic proportion steering executing device; and the electro-hydraulic proportion steering executing device responds to the PWM control signal and controls the flowing direction and the flowing speed of oil of a tractor steering system by the opening of a valve core of an electro-hydraulic proportion direction valve to make a piston of a steering hydraulic cylinder extend out or retract to deflect the steering wheel to the target steering angle.

The present invention relates to a measurement investigation equipment for water surface and under water. Said measurement investigation equipment includes the following several portions: a boat body, in the rear portion of said boat body at least one group of propelling devices is set; at least one group of machine-mounted sensors, it includes boat body state sensor and exterior state sensor, they can be placed in the boat body interior or placed in the periphery of said boat body; a probe dipping device, it can be placed in the boat body interior or its exterior; a probe, it is connected with the probe dipping device; a control device, it is respectively connected with the described propelling device, probe dipping device, probe and machine-mounted sensors; and a remote control device, it is wirelessly connected with said control device.

The invention discloses a vehicle network integration technology-based electric vehicle charging system and an implementation method thereof. The electric vehicle charging system comprises an electric vehicle network mobile computing terminal, which establishes a connection with an intelligent electric network via a power line carrier modulation and demodulation module, is connected with a cloud computing remote service platform, and uploads vehicle information of electric vehicles to the cloud computing remote service platform; the cloud computing remote service platform transmits charging information to positioning practicable charging station information and the electric vehicle network mobile computing terminal; electric vehicles are in information interaction via vehicle-mounted electric vehicle mobile computing terminals; and a microwave power transmission device is arranged in a charging station. The implementation of the invention is based on an electric vehicle technology integrating a vehicle intranet and a vehicle outer net; the vehicle intranet is large in information transmission capacity, is communicated with transport facilities via the wireless communication manner of a power line carrier; and the real-time performance of communication on the premises of multiple networks and larger data capacity is ensured.

The invention belongs to related technical field of intelligent sensing, and discloses a high-compliance method for guiding a robot to cooperatively work by people. The method comprises the followingsteps: (1) a human-computer cooperation system is provided; (2) the robot is towed for demonstration; a six-dimensional force sensor and a motor encoder of the human-computer cooperation system respectively measure information of force applied by operators and the angle and the angle speed of each joint of the robot; and a computer obtains the terminal speed and pose of the robot through robot kinematics calculation; and (3) the robot motion position and pose desired by the operators at the next time are predicted by adopting a sparse bayesian learning algorithm based on the information obtained in the step (2); and the torque of each joint is compensated through online adjustment of impedance parameters of an impedance controller according to the predicting result and design of a linear secondary adjuster. The method improves the compliance and the demonstration precision of the robot, and reduces the demonstration difficulty of the operators.

The embodiment of the present invention provides a control method and a ground control terminal of an unmanned aerial vehicle. The method comprising following steps of acquiring information of the unmanned aerial vehicle; transmitting the information to the remote server through a wireless communication device (41) such that the remote server can monitor the unmanned aerial vehicle in real time mode based on the information. The embodiment of the invention realizes the real-time communication between the remote control server and the remote server through the wireless communication device (41) by providing the wireless communication device in the control terminal (40) of the unmanned aerial vehicle for real-time monitoring, especially for agricultural unmanned aerial vehicles, the body is larger, higher prices, real-time monitoring of agricultural unmanned aerial vehicles to ensure the safety of agricultural unmanned aerial vehicles.

The invention discloses a large wind power blade multi-robot collaboration grinding system and a method. The grinding system comprises a workpiece horizontal guide rail, N robot grinding units, robot control cabinets and a system control cabinet. Each robot grinding unit comprises two robots and vertical guide rails, grinding heads, scanning detectors and force control devices corresponding to the two robots. According to the large wind power blade multi-robot collaboration grinding system, the collaborative movement of the workpiece horizontal guide rail, the vertical guide rails and the robots isrealized through a control command; the robots drive the grinding heads to grind a workpiece according to planned routes; the labor intensity of workers is greatly lowered; meanwhile, the two robots of each robot grinding unit collaboratively work, so that the corresponding grinding heads grind the surface of the blade and leave the surface of the blade simultaneously, and grinding pressure on two sides of the blade can be basically offset; the deformation of the blade is effectively reduced; and the surface quality and machining efficiency of the blade are improved. The large wind power blade multi-robot collaboration grinding system has the characteristics of high automation degree, safety, stability, high efficiency, high flexibility and transportability.

The invention discloses an indoor visual positioning system and method. The indoor visual positioning system comprises a power module, a sensor group, an information processing module, a front faceplate and a wireless communication module, wherein the front faceplate is provided with a positioning lamp group. Two cameras of the indoor visual positioning system can be flexibly mounted on walls and mobile carriers and have a double-eye visual working mode and a single-eye visual working mode. The method based on the indoor visual positioning system comprises, firstly, utilizing the front faceplate information of the cameras to calibrate double-eye visual system external parameters; secondly, utilizing double-eye visual measurement accurate information to structure maps to provide prior knowledge form a subsequent single-eye positioning mode; finally, utilizing knowledge such as points, lines, planes and distances contained in the maps to start the single-eye visual positioning mode and to achieve efficient and rapid positioning. The indoor visual positioning system and method solves the problem that traditional visual positioning methods cannot give consideration to precision and speed simultaneously, improves the flexibility and the automation degree of a positioning system.

The invention provides a deep-sea observing buoy system based on inductive coupling and satellite communication techniques and belongs to the technical field of an ocean buoy platform. The deep-sea observing buoy system comprises a data collecting control satellite communication subsystem, a shore-station satellite communication subsystem, a power supply subsystem, a buoy subsystem and a mooring subsystem. A principle of a transformer is adopted by the deep-sea observing buoy system; an underwater plastic coated steel cable is taken as an iron core of the transformer, an inductive coupling connector is taken as a primary coil, the coils in various data sensors under the water are taken as secondary coils, an inductive coupling module is taken as a modulator-demodulator, and a half-duplex communication mode is established by a data-acquiring control satellite communicator in a broadcast mode through various sensors under the water, so that the real-time collection for underwater data is realized. Meanwhile, a mature satellite communication system is selected, a dial-up service supplied by the satellite communication system is utilized to establish a real-time, large-data-volume and stable communication link between a deep-sea buoy and a user data center, and the real-time transmission for deep-sea observed data is realized.

The invention discloses a quantum key distribution system and method based on time-slot mixed active polarization compensation. The quantum key distribution system comprises a transmitting terminal, an optical signal generation module, a polarization modulator, a synchronous signal generator, a wavelength division multiplexing module, a wavelength division multiplexing solution module, a synchronous signal receiver, a polarization demodulator, a signal detection module and a receiving terminal. According to the quantum key distribution system and method, adopted reference light pulse signals and quantum pulse signals have the same wavelength, the magnitude of single pulse energy of the reference light pulse signals is far larger than the magnitude of single pulse energy of the quantum pulse signals, and the magnitude can be detected through a photoelectric detector. The reference light pulses do not need to be accumulated repeatedly to calculate sums when the detection is carried out, and the polarization compensation rate can be greatly promoted. After the active polarization compensation, and different polarization codes are detected based on a unified polarization detection device, so the quantity of SPAD can be reduced. An optical switch is utilized to carry out switchover on a detection light path, the phenomenon that the strong reference light pulse signals directly impact the SPAD, and therefore communication quality of quantum signals can be guaranteed.

The invention relates to a seabed observation network node platform comprising a box body in which a photoelectricity separating device, a wiring board, a high-voltage power supply cavity, a low-voltage power supply cavity and control system cavity, wherein the photoelectricity separating device is connected with a coast base station, an electric signal output end and an optical signal output endof the photoelectricity separating device are correspondingly connected with the input ends of a high-voltage wet plugging assembly and an optical fiber wet plugging assembly, the output ends of the high-voltage wet plugging assembly and the optical fiber wet plugging assembly are respectively connected with the low-voltage power supply cavity and the control system cavity, and the control systemcavity is in communication connection with seabed external equipment through an external equipment wet plugging assembly; the output end of the high-voltage power supply cavity is connected with the input end of the low-voltage power supply cavity, and the output end of the low-voltage power supply cavity is connected a power source input end of the control system cavity which is internally provided with a communication control system for data communication with the seabed external equipment and a power source management system. The invention can provide continuous power energy for the seabedexternal equipment and realizes the real-time and continuous communication between the coast base station and the seabed external equipment.

The invention discloses a solar photovoltaic grid-connected inversion control system based on a field programmable gate array (FPGA), which can control a household photovoltaic inversion system to realize grid-connected generation, predict a generation power of the system and realize real-time communication with a grid dispatching centre. The system comprises a signal detection circuit, a control circuit, a communication circuit, a grid-connected circuit and a driving circuit, wherein the signal detection circuit, the communication circuit, the grid-connected circuit and the driving circuit are connected with the control circuit respectively and operate cooperatively under the control of the control circuit. The system predicts the generation power of the household photovoltaic inversion system by using a power prediction algorithm based on a back propagation (BP) neural network and sends a predicted result to the grid dispatching centre in real time. The grid dispatching centre can manage running modes of photovoltaic generation and a conventional power supply reasonably according to the predicted result, reduce an adverse effect on a grid due to incorrect access of a household photovoltaic generation device and improve the schedulability of the photovoltaic generation.

The invention provides an audio processing device and system for far-field pickup and mobile charging, and the device comprises a Bluetooth module, a central processor, a waking-up module, a voice input module, a power module, a cellphone, an APP application, and a display screen. The power module is used for supplying power to the device, and the waking-up module wakes up the voice input module. The voice input module collects the external sound information, and the central processor carries out the noise reduction, reverberation removal, echo removal and voice enhancement of the sound information. The Bluetooth module enables the processed audio information to be transmitted to the cellphone, and the cellphone APP carries out the voice recognition of the audio information, and transmits a waking-up instruction to the waking-up module. The display screen displays the recognized text information in real time. The device provided by the invention achieves a purpose that a person with hearing impairment can clearly know the speaking content of a speaker through the text information displayed by the display screen, brings convenience to the person with the hearing impairment for conversation.

The invention discloses a welding method of an orthotropic plate U-shaped rib fillet welding robot, comprising the following steps of: A, preparing a U-shaped rib plate unit; B, clamping the U-shaped rib plate unit on an anti-deformation overturning jig and adopting a robot automatic welding system to weld a fillet weld of a U-shaped rib at one side; and C, after the fillet weld of the U-shaped rib at one side is welded, overturning the anti-deformation overturning jig to a fillet weld of the U-shaped rib at the other side to form a ship position, so as to weld the fillet weld of the U-shaped rib at the other side. Special equipment of the welding method of the orthotropic plate U-shaped rib fillet welding robot comprises the robot automatic welding system and the anti-deformation overturning jig, which can realize automatic interaction work by a controller. According to the welding method disclosed by the invention, the disadvantages of the prior art can be solved; and the stability of the welding quality of the fillet weld of the U-shaped rib is guaranteed and the production efficiency is improved.

The invention discloses a belt detection alarming system based on laser ranging, which adopts a noncontact measuring principle, and can effectively avoid the faults such as missing and error in report of a stroke switch measurement due to the influence of a contact environment. The system adopts a centralized data processing way, realizes the accurate measurement and monitoring simultaneously for multiple belts, the surface of a material is scanned by virtue of a laser scanning ranging device, a distance value from a laser head to the surface of the material is acquired, an edge position of each belt is acquired by virtue of the distance value, the edge position is compared with the belt edge position recorded when the device is calibrated, whether the belt is deviated or not can be judged, when the belt is deviated, a belt control device is notified to make corresponding action by transmitting a pulse control signal, and the belt device is prevented from being damaged. According to the system, fewer devices and parts are used, the structure is simple, the detection reliability is high, the system maintenance cost is low, and the belt detection alarming system is suitable for being popularized in various transport belt application industries.

The invention discloses a USB (Universal Serial Bus)-based communication module and a communication method for an alternating current servo driver. The communication module comprises a digital signal processing module, a USB communication module and a USB interface module, wherein the digital signal processing module is connected with the data bus of the USB communication module; the USB communication module is respectively connected with the digital signal processing module and the USB interface module and packages message information between an upper computer and a servo driver into a USB standard communication mode or resolves the message information into parallel data; the USB interface module is connected with the upper computer and the servo driver by a USB cable and transmits message information between the upper computer and the servo driver in the USB standard communication mode. By the adoption of the communication module and the communication method, the functions of online servo parameter modification, motor operation state monitoring and the like can be achieved, and the parameter updating time can reach a microsecond level.

The invention discloses a multi-serial equipment driving process for a VxWorks operating system. The multi-serial equipment driving process mainly includes acquiring MEM space address of PCI / PCIE multi-serial equipment, initializing the multi-serial equipment, programming a drive service program, registering and installing an interrupt service program, creating serial channel files and the like. By the multi-serial equipment driving process, the multi-serial equipment can be driven in the VxWorks operating system, and real-time communications of the multi-serial equipment are realized.

The invention discloses an intelligent education system which comprises a display interactive device, a course end, a school end, a teacher end, a parent end and a server end. The server end includesa database. The course end, the school end, the teacher end and the parent end communicate with one another through the database of the server end. The course end includes a host and a course controlend. The host has a course module and a hardware control module. A class module includes a class selection module, a student information module, and a course control module. The school end includes aschool-end login module, a personnel management module, a course management module, a class management module and a setting module. The teacher end includes a message notification module and a teacherpersonal module. The parent end includes a parent message notification module and a parent personal module. The intelligent education system of the invention is particularly suitable for teaching children 3 to 6 years old, and has the advantages of convenient control operations, an excellent course display effect, a timely interactive function and multi-end interconnection.

The invention discloses an instant messaging communication method based on a Websocket protocol. The instant messaging communication method based on the Websocket protocol comprises the following steps: adding the Websocket protocol and a message queue service HornetQ between a network communication layer and a business logic layer to start message transmission, using network based on an open source to process a webbit frame of a netty frame and to provide a basic service of the websocket protocol, after the success of a websocket handshaking protocol, a client side is linked with a service establishing network, sending authentication logging information, after successfully authenticating, a service end starts the message queue service HornetQ, and adding logging users of the client side to a waiting for conversation queue to wait for activation of the messages. After receiving the activated messages, the messages are returned to the client side through the websocket protocol.

The invention relates to the technical field of streaming media data processing and network communication, in particular to a real-time interactive teaching system based on application-layer multicast services. The interactive teaching system comprises a teaching terminal and an attending terminal, wherein the teaching terminal and the application-layer multicast protocol constitute an application-layer multicast overlay network, thus achieving the real-time transmission of multimedia data for teaching and carrying out real-time interaction between the teaching terminal and the attending terminal. Accordingly, the invention aims to combine the application-layer multicast services with the streaming media, thus providing a network teaching environment having the advantages of short time delay, low requirements for bandwidth, high quality of audio and video transmission and real-time interaction, solving the problem that the conventional teaching process is constrained temporally and spatially, and expanding the teaching scale at the same time.

The invention discloses a comment reply information processing method and apparatus. The method includes receiving the comment content of a first user, uploading the comment content to a server, detecting the log-in state of the first user, obtaining a first user identity of the first user, obtaining comment reply information related to the first user and stored in the server locally according to the first user identity, and updating the comment reply information obtained from the server to the local page where the comment content of a first user is located. A log-in user requests and obtains newest comment reply information from the server, so that the user can rapidly know that who replies the comment content of the user. Interaction motivation between users is enhanced, the user experience is improved, and rapid, convenient and real-time exchanging views and communication on specific content between log-in users can be achieved.

The invention discloses a bus route coordination control system and method of novel intelligent customized buses. Travel demand information of passengers is input in mobile phone client sides and a phone reserve platform, the travel demand information is classified through a background control center according to travel time, travel places, destinations and the like, and classification results aretransmitted to corresponding region control centers and online operation buses of the region control centers; the online operation buses judge whether the transport capacity of the buses meets the requirements or not according to the travel demand information of the passengers, if yes, bus information is fed back to the passengers, and if not, the travel demand information is transmitted to the region control centers; when the region control centers receive the travel demand information transmitted by the background control center and the online operation buses, whether the transport capacityof standby buses meets the requirements or not is judged; if yes, the buses are dispatched automatically, and information is fed back to the passengers; if not, the adjacent region control centers are requested to coordinately dispatch the buses, and bus information is fed back to the passengers.

The invention provides a method and device for high-speed wired duplexing information communication between a well and the ground. The method comprises the steps of: collecting signals in the well by a sensor; modulating the collected signals by adopting a coding orthogonal frequency division multiplexing technology into OFDM (Orthogonal Frequency Division Multiplexing) signals; transmitting the signals to the ground by a basic structure unit consisting of a drill stem with cables and the like and further demodulating to obtain the collected signals in the well, thereby determining the underground temperature, pressure and fluid condition, formulating a drilling well completion strategy and forming a ground control instruction which is transmitted to an appointed position in the well by a transmission system. Compared with traditional like technologies, the system has the advantages of a large amount of transmittance data, high transmission speed, strong real-time property, two-way communication, high confidentiality and the like.

The invention discloses a buoyancy-driven intelligent self-lifting communication subsurface buoy system which comprises an intelligent self-lifting communication floating body, a main floating body and an anchoring system. The intelligent self-lifting communication floating body comprises a main frame, a floating body material, a communication antenna, an electronic compartment, a battery compartment, an acoustic module and a buoyancy-driven adjusting mechanism. The buoyancy-driven intelligent self-lifting communication subsurface buoy system has the advantages that the subsurface buoy system can realize real-time transmission of data of a subsurface buoy, so that timeliness of the data is guaranteed; switching of a working state of a mechanism around a density jumping layer is realized by cooperation of the buoyancy-driven adjusting mechanism and a control system, long-term working capability of the surface buoy system at low power consumption is realized, floating motion and a communication function under low ocean current are realized, overall power consumption of the subsurface buoy system is lowered, and working cycle of the subsurface buoy system is prolonged greatly; by being controlled to float and dive, the communication subsurface buoy is effectively protected from being damaged by organisms or ships on the sea, and high working reliability of the subsurface buoy is guaranteed.

The invention provides a data management method for a spare part sale support system based on a B / S (Browser / Server) architecture. The method comprises the following steps that a client terminal receives and transfers a service request of a user; a system service center receives the service request from the client terminal, analyzes and judges the user type according to the service request, performs identity authentication on the user sending the service request according to the service request and allocates a corresponding authority to the user according to the identity authentication result; the system service center authenticates the authority of the user, responses to the service request after the authentication is successful, and provides corresponding Web service, business logical service and unified business access interfaces according to the service request. The invention also provides a data management device for a spare part sale support system based on the B / S architecture. The method and the device can be used for improving the working efficiency and safety reliability of the system.

The invention discloses an instant messaging service process execution system based on a PDA device and an enterprise resource planning system. Service personnel use instant messaging of the PDA device and the enterprise resource planning system, so that services such as purchase and storage of raw materials, raw material consumption in a production plan, product acceptance, sell, delivery and picking, truck loading ex-factory inspection and subcontracting. According to the system, real-time communication of the PDA device and the enterprise resource planning system is achieved, service process execution information of purchase and storage of the raw materials, production execution, sell and ex-warehouse and the like is fed back to the enterprise resource planning system in real time, the related personnel can master required information respectively in real time from the system, transparency of enterprise management is improved, data are well documented, it is guaranteed that a sale plan can be executed accurately, and client complaints generated due to the fact that goods can not be delivered in time are reduced.

The invention provides a detection sensing system for remotely operating a rescue robot. The detection sensing system comprises a monitoring computer, an on-board computer, a bottom control circuit unit, an image collecting and transmitting unit, a laser distance-measuring radar unit, an inertial attitude reference system unit and a detection sensor unit, wherein the bottom control circuit unit comprises a main control unit module, a pan-tilt camera driving module, a power supply module and a bottom circuit main board; the image collecting and transmitting unit comprises a pan-tilt camera and a video transmission module; the detection sensor unit comprises a temperature sensor, a sound sensor, a gas sensor and the like; the on-board computer is connected with the main control unit module through a USB (Universal Serial Bus) data interface; and the main control unit module and the pan-tile camera driving circuit module are designed to be arranged on the bottom control circuit main board through a pin type interface. The detection sensing system has good universality and higher transportability, and can be used for various types of robots such as rescue robots and domestic service robots.

The invention discloses a misassembly preventive system for electrical product assembly. A work order management system generates and prints a work order according to an assembly plan, an electronic scanning system scans bar code information on the work order and transmits the bar code information to a terminal control system, the terminal control system transmits the bar code information to a material management system through an assembly resource management system, the material management system inquires all material information related to the work order and transmits the material information to the terminal control system through the assembly resource management system, the terminal control system enables material list information to be displayed on an LED display system and synchronously transmits the material list information to a grating monitoring system, and the grating monitoring system detects whether workers take materials from correct material cabinets or not, and if not, alarms and displays. Relationships between materials and assembly products are established by the work order management system, assembly workers learn materials needed for assembly by scanning the work order and monitor by utilizing gratings on material shelves, and accordingly problems of neglected assembly, misassembly of electrical products and the like are effectively solved.

The invention discloses a multi-transport protocol equipment monitoring system based on OPC UA, and the system comprises an OPC UA server which is connected with a plurality of pieces of underlying equipment; a data acquisition module, arranged in the OPC UA server, and the data acquisition module being used for acquiring first data of a plurality of pieces of bottom-layer equipment; a data conversion module, arranged in the OPC UA server, an input interface of the data conversion module being connected with an output interface of the data acquisition module, and the data conversion module converting the first data into second data in a preset format; a Web server, connected with the OPC UA server and used for processing and storing the second data; and an OPC UA client, respectively connected with the OPC UA server and the Web server through a network. A system which is originally of a C / S architecture is reconstructed into a B / S architecture, monitoring of the data at a PC end or a mobile end is achieved, the problem that traditional ship data monitoring can only be conducted at the PC end is solved, and a user can have access to the data at a mobile terminal conveniently.

The invention relates to a network virtual exhibiting method and a system thereof and comprises that: a user interface of a virtual exhibition is provided in a client and is used for interaction with a user; real-time information of the virtual exhibition produced in the interacting process is sent to a server; the real-time information of the virtual exhibition from the client is received by the server and converted to the configuration information of the virtual exhibition which is then stored in a database; according to the configuration information of the virtual exhibition in the database, an image file display command is sent to the client; according to the image file display command sent by the server, the client transfers the image file display of the virtual exhibition in a document library. The invention avoids the disadvantages that the prior exhibition wastes mass manpower, material resource, financial resource and time in order that exhibitors can exchange and communicate in real time and the users can fully see a real-time exhibition in the client.