51results about How to "Instant messaging" patented technology

A data communication method allowing reliable real-time communications among a plurality of nodes participating in a session is disclosed. In the case where a plurality of nodes participate in a session such that two or more nodes do not concurrently send data, a session management node reserves a necessary bandwidth needed by all the nodes participating in the session by accessing the Isochronous Resource Manager.

The delay in a multi-channel audio coding apparatus and a multi-channel audio decoding apparatus is reduced. The audio coding apparatus includes: a downmix signal generating unit (410) that generates, in a time domain, a first downmix signal that is one of a 1-channel audio signal and a 2-channel audio signal from an input multi-channel audio signal; a downmix signal coding unit (404) that codes the first downmix signal; a first t-f converting unit (401) that converts the input multi-channel audio signal into a multi-channel audio signal in a frequency domain; and a spatial information calculating unit (409) that generates spatial information for generating a multi-channel audio signal from a downmix signal.

The network equipment (NE) management method includes steps: NE receives connection request from network equipment management system (NEMS); the method determines current working mode, and current connecting mode of NE, and accepts or refuses connection request based on the working mode and connecting mode; if accepting the connection request, then building connection between network management system and NE; based on the working mode of NE to execute operation requested by NEMS, which is already connected to NE, on NE. The invention also discloses NE and NEMS in use for implementing the network equipment management method.

The invention discloses an electric power data multi-way communication system. The electric power data multi-way communication system comprises a main station terminal, a PLC (programmable logic controller) network, a centralizer and a meter, wherein the main station terminal, the centralizer and the meter are subjected to communication and coupling through the PLC network. The electric power data multi-way communication system further comprises a centralizer end module arranged at the centralizer end as well as a meter end module arranged at the meter end; the centralizer end module is connected with the meter end module through an electric power line protocol. The invention also discloses a multi-way centralized meter reading system. According to the electric power data multi-way communication system and the multi-way centralized meter reading system disclosed by the invention, communication modules are intelligent nodes, and intelligent modules interact for instant networking, and the networking is not controlled by the centralizer; real-time, rapid and stable communication is achieved; the antidamping and noise resistant capabilities of the systems are improved further on the networking mechanism based on a physical layer by fully utilizing the intelligent characteristic of a chip of the physical layer; the technical difficulties of network time and sequence, network conflict, network efficiency, effective detection of repeated data packets and the like are solved based on the chip CSMA (carrier sense multiple access), and the stability and reliability of communication are ensured.

The utility model relates to torsion bar press fitting and measuring straightening equipment, in particular to automatic torsion bar press fitting, measuring and straightening equipment, aiming to solve the problem that single equipment cannot meet a pace requirement when a torsion bar processing process is complicated, torsion bar processing equipment is complicated in structure and high in price, the process pace is long and the production pace is short. A bedplate is fixedly connected with a machine frame; a lower clamp and a guide shaft are fixedly connected with the bedplate; a linear bearing is installed on the guide shaft; a sliding plate is fixedly connected with the linear bearing; an upper clamp and a pull pressure sensor are fixedly connected with the sliding plate; a measuring and straightening mechanism and a cylinder support are fixedly connected with the bedplate; a cylinder is fixedly connected with the cylinder support; a cylinder rod of the cylinder is fixedly connected with a slide block inside the lower clamp; a first support is fixedly connected with the bedplate; a drag chain is fixedly connected with the first support and the sliding plate; a press-fitting alternating current servo motor is in transmission connection with a press-fitting speed reducer; the press-fitting speed reducer is in transmission connection with a press-fitting synchronous belt transmission mechanism; the press-fitting synchronous belt transmission mechanism is in threaded connection with a press-fitting screw rod; and the press-fitting screw rod is fixedly connected with the pull pressure sensor. The automatic torsion bar press fitting, measuring and straightening equipment is used for automatic press fitting, measuring and straightening of a torsion bar.

A method and system provide routing of signals through a communications network. A transmitted signal is received. The signal has an associated parameter that is monitored as the signal is received. The parameter indicates the extent to which prior retransmission of the signal has occurred. The signal is retransmitted only if its parameter satisfies at least one predetermined criterion.

A direction-agile antenna system is implemented in a wireless network to allow wireless communication devices to establish and maintain wireless data links with each other. In one embodiment the antenna is provided with a motor and a step motor drive for rotating the antenna to the selected direction. In other embodiment the antenna comprises an array of antennas capable of electronically steering the electromagnetic signal to the selected direction.

The invention discloses a multi-protocol-based information pushing system and method. The multi-protocol-based information pushing system comprises at least two clients, a plurality of access servers corresponding to the clients, a protocol conversion system, a reverse protocol conversion system and an information processing system. Through arrangement of the protocol conversion system and the reverse protocol conversion system in the whole information pushing system, information pushing among clients supporting different communication protocols is realized; the clients can perform instant messaging with other clients on the basis of not increasing client support communication protocols; and multi-protocol-based information pushing is realized.

The invention discloses a web push method based on an event bus. The method comprises the following steps of S1, service container stack address binding; S2, asynchronous processing of messages; S3, releasing of application service messages; S4, web side message subscription; and S5, event bus pushing. The difficulty of upgrading and capacity expanding can be reduced by the technical scheme, and the workload of upgrading can be reduced so that message sending and receiving are enabled to be more timely; the services can be quickly deployed with increasing of the number of the registered users; the concurrency of the system can be enhanced through asynchronous processing; the TPS (transaction per second) of the system can be obviously enhanced; and service calling is safer.

A large complex surface 3D topography robot flexible measuring system belongs to the technical field of topography measurement. The technical problem in the prior art that the measuring equipment cannot realize online measurement due to lack of flexibility, and has low degree of automation, low accuracy of point cloud splicing and measuring efficiency yet to be improved is solved. The measuring method of the measuring system comprises the following steps: S1, building a complex surface measuring system model; S2, planning a complex surface trajectory, and performing offline programming; S3, measuring the 3D topography of the complex surface; and S4, processing the measurement data of the complex surface, and using a global point cloud splicing technology based on IGPS to complete point cloud data splicing. For different measurement products, the robot control program can be replaced at any time to adapt to different measurement requirements. An industrial robot can communicate with a computer in real time, and the degree of automation of the system is improved.

The invention relates to an intelligent-control multifunctional multi-type energy-storage-battery quick charging system. The system is composed of a main circuit and subcircuits. The main circuit comprises a single chip microcomputer, a voltage input circuit, a power source circuit, an oscillating circuit, a keyboard input and display alarm circuit, a signal collection processing circuit and a signal output circuit, wherein the power source circuit is further connected with the subcircuits. Compared with the prior art, the system has the advantages that the functions of leakage detection, heat management, battery equalization management, alarm reminding, surplus capacity calculation, discharger power, SOC, SOH and DOD state reporting are achieved for batteries; the system has the functions of overvoltage protection, battery heat management and the like; corresponding charging methods are designed for different types of energy storage batteries, so that all types of the energy storage batteries can be charged under the optimal charging methods; the function of controlling the maximum output power and other functions can further be achieved for electric cars and the system further has the advantages of being simple in device, small in size, light in weight, quick in reaction speed, low in cost, long in service life and the like.

The invention relates to a denotation controller with a two-stage independent environmental force recognition function, which is characterized in that recognition for a two-stage environmental force of engine ignition signals and powered phase overload signals through integrating an electromagnetic relay and an MEMS sensor, and the integration, the autonomy and the security of the denotation controller are improved. The denotation controller realizes communication with a control system and a programmable execution mechanism through a 1553B bus technology and an RS485 bus technology, and the communication reliability of the system is improved. Meanwhile, in order to improve the reliability of the denotation controller at the power-on moment, a function of power-on IO output blocking is adopted, and the anti-interference capability and the reliability of a product in hardware are improved.

The invention discloses a remote terminal management method based on an MQTT protocol. The MQTT protocol is used for replacing an http protocol, authentication based on the MQTT protocol is used for authentication, a load of the MQTT is used for sending a soap message, and a topic subscription mechanism is used for a sent receiving object. The MQTT protocol provides TCP long connection, and subsequent TR069 protocol signaling can be transmitted through the MQTT protocol. According to the invention, the TR069 message reliability is improved; the rapidity of the TR069 message is improved, and real-time message transmission can be realized through long connection of the MQTT; the timeliness and availability of management equipment are improved, and real-time operation can be performed on equipment management and updating; travel069 is supported to pass through nat, and other devices for passing through a tunnel and the like are not needed for support; based on the MQTT protocol, the TR069 protocol is easier to understand and implement.

The invention discloses a wind-solar hybrid LED bus stop board which comprises a base, a stop board body, a support pillar, solar cell panels, a wind power generation device, an LED display screen, a wireless communication device, a control device, an electric transducer and a storage battery. The support pillar is arranged at the top of the stop board body, a support frame is arranged on the lower portion of the support pillar, the solar cell panels are arranged on the support frame, the wind power generation device is arranged at the top of the support pillar, the solar cell panels and the wind power generation device are connected with the electric transducer which is connected with the storage battery, the wireless communication device is arranged on the left side of the top of the stop board body, and the LED display screen, LED illuminating lamp sets, loudspeakers and the wireless communication device are electrically connected with the control device. By means of the wind-solar hybrid LED bus stop board, the consumption of the electrical energy is reduced, and the timely situation of a vehicle can be conveniently understood by a passenger in time.

A direction-agile antenna system is implemented in a wireless network to allow wireless communication devices to establish and maintain wireless data links with each other. In one embodiment the antenna is provided with a motor and a step motor drive for rotating the antenna to the selected direction. In other embodiment the antenna comprises an array of antennas capable of electronically steering the electromagnetic signal to the selected direction.

The invention provides a distributed instant communication method and a system. The communication method comprises the following steps that: client terminals establish a connection pool, and a minimum value and a maximum value of connection in the connection pool are initialized; when the client terminals have operation requests, the connection is obtained from the connection pool, so that the operation requests are executed; a control device timely calculates the number of the operation request of each client terminal in unit time; a server periodically resets the minimum value and the maximum value of the connection in the connection pool of the client terminals according to the number of the operation requests of all the client terminals in the latest unit time which is calculated by the control device; and the server adjusts the actual value of the connection in the connection pool according to the minimum value and the maximum value of the connection in the connection pool of the client terminals which are reset.

The invention which relates to a gas collection device provides a high-altitude gas collection device which allows high-altitude atmospheric condition monitoring to be realized. The device is provided with a high altitude apparatus and a ground apparatus; the high altitude apparatus is provided with a direct current power supply, a controller, an air radio station, an air pump, an air container and a GPS positioner, the output terminal of the direct current power supply is connected with the power input terminal of the controller and the power input terminal of the GPS positioner respectively, the air radio station is in electric connection with the controller, the signal output terminal of the GPS positioner is in electric connection with the signal input terminal of the controller, and the control signal output terminal of the controller is in electric connection with the control signal input terminal of the air pump; the air outlet of the air pump is connected with the air inlet of the air container; and the ground apparatus is provided with a ground radio station and a computer which is in electric connection with the ground radio station, and the ground radio station is in wireless communication with the air radio station.

The invention discloses a digital campus mobile terminal application system. The digital campus mobile terminal application system comprises at least one server, and a number of parent end systems anda number of teacher end systems communicated with the server, which are controlled by a backstage management account, parent end users, and teacher end users successively; the backstage management account is logged in to the server by Web; and the parent end users and the teacher end users log in to the parent end systems and the teacher end systems through mobile terminals. According to the invention, the parent end systems and the teacher end systems are separated, and the digital campus mobile terminal application system is dual port designed and easy to run and develop; and the teachers and the students, the parents and the school have one-to-one correspondence relationships, which can perform instant messaging, therefore, the digital campus mobile terminal application system facilitate the exchange of the parents and the teachers at any time to promote the growth of children.

The invention relates to a distributed IOT (internet of things) system which comprises a sensor, an IOT gateway device and an IOT server. The IOT gateway device is connected with the sensor and the IOT server. The distributed IOT system is characterized in that the IOT server is connected with a data centre server. The system is easy to maintain, and only data in the data centre server needs to be maintained; the system is high in safety, and physical safety vulnerability caused by distributed data does not occur due to storage centralization; and the system is easy to expand, and storage hard disks of the data centre server can be increased dynamically, and data capacity expanding is an easy thing.

The invention discloses a real-time communication method and device in a distributed system and the distributed system, and belong to the distributed technical field, the distributed system comprisesa main node and a working node, an algorithm task unit and a communication task unit are deployed on the working node, the method comprises the steps that the communication task unit executes initialization operation after being started and enters a monitoring state after the initialization operation is completed, and the initialization operation comprises initialization of a shared memory and network connection; the algorithm task unit is started after the communication task unit enters a monitoring state, and processes a calculation task initiated by the main node after being started; the algorithm task unit writes a calculation result of the calculation task into a shared memory; when the communication task unit monitors that the calculation result is stored in the shared memory, the communication task unit reads the calculation result; and the communication task unit returns a calculation result to the main node through network connection. According to the embodiment of the invention, real-time communication in the whole distributed system can be realized so as to ensure real-time output of the algorithm.

The invention provides a sharing and and displaying method, a sharing and displaying device, a terminal and a server. The user state sharing method comprises steps that whether the facial biological characteristic information of users is acquired is detected; if yes, the online display information is sent to a server, and the online display information is used for displaying online states of the users of a sharing terminal on a displaying terminal. Through the method, the use states of the users can be known in real time, communication with contact persons can be accurately carried out, communication efficiency is improved, the waiting time is reduced, and use experience of the users is improved.

A controllable waterfall-type file pushing method concludes that client sides to which files need to be pushed are layered and grouped in a server side pushing process. Content which needs to be obtained of the files, time when the files are obtained, sources from which the files are obtained and the like in the server side pushing process are controlled by the server side, which means the server side controls and informs the content which need to be obtained by every client side no matter where the client sides are in the IP networks. The controllable waterfall-type file pushing method adopts real-time communication technology, so that the real-time communication can be achieved among client sides and between the client sides and the server sides. The server sides can actively do networking for the client sides and controls file obtaining behaviors of the client sides, reduce independence of the client sides on the server sides when the client sides obtain files, and lower requirement for the number of server side device and network exit bandwidth.

The invention belongs to the technical field of D-series high-speed train running safety monitoring, and particularly relates to a recognition system for a D-series high-speed train driver behavior. The recognition system for the D-series high-speed train driver behavior comprises a vehicle-mounted recognizing instrument, a central server and a ground terminal, wherein the vehicle-mounted recognizing instrument is connected with the central server through a mobile network, is used for acquiring, recognizing and storing audio and video in the D-series high-speed train driver operation process in real time in the D-series high-speed train running process, and can be further in audio / video communication with the ground terminal; the central server is used for processing and storing the audioand video data returned by the vehicle-mounted recognizing instrument, and responding to the operation of the vehicle-mounted recognizing instrument and the ground terminal; and the ground terminal isconnected with the central server, is used for receiving driver behavior information, and can carry out remote audio / video communication with a driver. According to the system, a D-series high-speedtrain driver operation state can be monitored in real time, the driver can be reminded in time, ground management personnel can know the current state of the driver in time through the system, two-wayaudio one-way video talkback can be realized, and train-ground emergency command is simply and quickly realized in an emergency situation.

The invention relates to a comprehensively protecting measurement and control device for a mine. The comprehensively protecting measurement and control device comprises a central processing unit (CPU), wherein the CPU adopts an LM3S2948 chip; the signal input end of the CPU is connected with an on-off input optoelectronic isolation circuit, a voltage transformer and a current transformer respectively; the signal output end of the CPU is connected with an on-off optoelectronic isolation driving output circuit and a liquid crystal display (LCD) respectively; the LCD adopts an LCD12864 chip; and an input / output end of the CPU communicates with a background through a communication interface. As the LM3S2948 chip is adopted, the comprehensively protecting measurement and control device for the mine has high processing speed, rich interface resource, high reliability, low cost and integral design, integrates the displaying, protecting, measuring, computing, controlling and communicating functions, can communicate with the background in real time and is applicable to neutral point ungrounded power supply and power transformation systems with a voltage grade of 10kV and below.

The delay in a multi-channel audio coding apparatus and a multi-channel audio decoding apparatus is reduced. The audio coding apparatus includes: a downmix signal generating unit that generates, in a time domain, a first downmix signal that is one of a 1-channel audio signal and a 2-channel audio signal from an input multi-channel audio signal; a downmix signal coding unit that codes the first downmix signal; a first t-f converting unit that converts the input multi-channel audio signal into a multi-channel audio signal in a frequency domain; and a spatial information calculating unit that generates spatial information for generating a multi-channel audio signal from a downmix signal.

The invention discloses a message pushing method and system for an application program, and the method comprises the steps: enabling the application program of an application program server to be connected with a message pushing server, and sending a message needing to be pushed to the message pushing server; the message pushing method comprises the steps that a message pushing server is started,a client needing to be pushed is searched for from multiple clients through the message pushing server, whether the client needing to be pushed is online or not is determined according to the login state of the client, if yes, the message is directly pushed to the client needing to be pushed, and if not, the message is stored in the message pushing server; and the offline client uses the receivedlatest message as a timestamp, and obtains the message stored in the message push server by using the timestamp when logging in next time. The method has the beneficial effects that the message pushing server is provided to realize uniform interface and automatic adaptation, so that the message can be instantly, accurately and necessarily reached in the message pushing process of the mobile APP.

The invention belongs to the technical field of computer hardware, and particularly provides a computer display screen with a note board and communication. The computer display screen comprises the computer display screen and a USB (Universal Serial Bus) socket, wherein the upper end of the computer display screen is provided with the note board and a mobile phone, and therefore, the problem that a traditional display is not provided with the note board or the mobile phone can be solved. The computer display screen with the note board and the communication is convenient for people to carry out instant communication so as to bring convenience for recording important messages, memos and notices in time. Working efficiency is improved, and convenience is brought for the work and the life of people.

The invention discloses internet-of-things gateway equipment with electric quantity measurement control being a core. The equipment comprises a shell, a power circuit, an electric quantity measurement circuit, a through and cutoff circuit, a central control circuit and a communication circuit. The input end of the electric quantity measurement circuit and the output end of a current sensor are connected in parallel, a calibration port is connected with the input end of the electric quantity measurement circuit, and the output end of the electric quantity measurement circuit is connected with the central control circuit through an optical coupled isolator. The through and cutoff circuit comprises a through electrode formed in a stamped mode and a cutoff control device with the current sensor in an integrated mode, and the central control circuit and the communication circuit comprise a central controller, a GSM circuit, an FM circuit, an M-BUS circuit, a relay driving circuit and others. The electric quantity of control equipment can be remotely and independently measured and controlled, communication between the internet-of-things gateway equipment and a server as well as between the internet-of-things gateway equipment and terminal equipment can be achieved in real time, and the internet-of-things gateway equipment is suitable for providing interaction between a smart phone APP and a server side or an equipment side for a water, gas and heat supplying measurement terminal and an internet-of-things terminal device and serves for smart city and internet-of-things home construction.

The invention provides a zinc oxide intelligent lightning arrester, and belongs to the field of safety devices. The zinc oxide intelligent lightning arrester is composed of a composite jacket zinc oxide lightning arrester, a lightning arrester top bolt and a lightning arrester intelligent detection module, wherein the lightning arrester top bolt is screwed at the top of the composite jacket zinc oxide lightning arrester, the bottom bolt of the composite jacket zinc oxide lightning arrester is screwed on the lightning arrester intelligent detection module, and the intelligent detection module is independent into a whole, connected in series with the zinc oxide lightning arrester to be connected into a line, and safe and reliable, and can be prevented from being damaged. According to the invention, the narrow-band Internet of Things is adopted for communication in real time and fast, and Beidou positioning is accurate and convenient to find. The zinc oxide intelligent lightning arrester can be widely applied to the field of design and manufacturing of zinc oxide lightning arresters.

The invention discloses an E-mail communication system and method based on a computer, and belongs to the technical field of E-mail communication. The method comprises the following steps: step 1, establishing connection between an email receiving end and a mail server to which the email receiving end belongs through an SMTP protocol, setting a mail sender identity recognition end on the mail server to which the email receiving end belongs, and analyzing the risk degree of the email according to a mail sending address; 2, after the identity recognition of the mail sender is passed, a mail server obtains a mail keyword, carries out matching analysis on the obtained mail keyword and the related information of a recipient, and evaluates the importance degree of the E-mail; 3, based on the evaluation result of the step 2, the email server preferentially transmits the email; and 4, the e-mail receiving end predicts the feedback time of the recipient according to the e-mail consulting time information of the recipient, the mail receiving time information and the recipient operation information.