2451 results about "Communications protocol" patented technology

The invention discloses a method and a system for realizing interactive sharing among multiple screens and multiple users by sliding the screens and belongs to the field of network communication. The method and the system are based on a communication protocol, a corresponding instruction is sent to a middle service layer (a server or a virtual server) in a screen-sliding manner; and an information instruction of a terminal is transmitted through the middle service layer, therefore instant communication among terminals connected with the middle service layer is realized. In the method and the system, unprecedented communication convenience in the network era can be experienced in a screen-sliding mode combining the characteristic of a touch screen, so a user feels the unprecedented interactive sharing smoothness; and by the method and the system, supplied resources, such as information, films and televisions and the like, can be quickly transmitted to different terminals of the same user or other user terminals instantly without waiting.

The invention provides an order-driven single-piece small-batch combined flow production method for a processing workshop, which has high intellectualization degree and strong practicability. In the method, a manufacturing system of the processing workshop is divided into a planning module, a scheduling module, a system database, an upper RFID reader-writer and an equipment control layer, wherein the planning control module, the scheduling module and an equipment control unit are all realized by Agent (intelligent agent) technology. All the parts of the manufacturing system are connected into a multi-Agent (intelligent agent) manufacturing system through a network and a communication protocol. Under normal conditions, the system carries out machining according to a preset operation working procedure through static scheduling; and when the system is abnormal, the system completes a processing task through dynamic scheduling. Accordingly, staff members can dynamically master production process information in real time. The production method can effectively improve processing efficiency and reduce production cost.

The invention provides a protocol conversion method and device. The protocol conversion device at least comprises a first communication interface and a second communication interface. The protocol conversion method comprises the following steps: binding corresponding protocol types for the communication interfaces, and selecting corresponding decoding and encoding rules from a preset rule base; receiving source communication protocol data from a first communication interface, judging the protocol type of the source communication protocol data, and decoding the source communication protocol data to generate decoded data; and encoding the decoded data to generate target communication data, and sending out the target communication data through a second communication interface. The method and the device in the invention have the advantages that the types of source communication protocols and target communication protocols are unrestricted, thus realizing data conversion for a plurality of the existing standard protocols and manufacturer custom protocols, and solving the problems such as single product function and worse reusability as a result that only specific protocols can be converted in the prior art.

The invention relates to a device for connecting different types of exchanging system networks, in particular to a multiprotocol data acquisition gateway which adopts an ARM+DSP-based embedded system structure and comprises a hardware application platform, a system software platform and application software. A memory is used as a data server to set up a database; buses with different protocols access to the database to realize the protocol transformation, the data sharing and the communication among different networks with different protocols; the hardware application platform is provided with a universal interface so as to acquire standard and nonstandard current-voltage signals and audio-video signals in the industrial field or acquire the data of equipment with standard communication protocols in the industrial field and further realize the protocol transformation and provide a comprehensive data transformation scheme from a physical layer and a data link layer to an application layer, wherein the application layer is a single network protocol, which facilitates enterprise data intercommunication and reduces the application cost. The multiprotocol data acquisition gateway is applied to the electric power, the mine and the like to realize the remote centralized automatic data acquisition and is used for transforming different communication protocols of equipment in a system to the unified communication protocol.

The invention provides a high-efficiency streaming media playing method and a high-efficiency streaming media playing device. The method comprises the steps: establishing connection with a streaming media server; reading preset data from the steaming media server; analyzing the preset data according to a communication protocol of the steaming media server to acquire related parameter information; calculating the size of a buffer zone practically distributed according to the related parameter information, and then applying a memory with size equal to that of the buffer zone as a playing buffer zone; reading data stream from the steaming media server; storing the data stream to the playing buffer zone; and decoding and playing the data stream in the playing buffer zone according to the type of the steaming media. According to the scheme, steaming media at different code rates and in different network environments can be dynamically buffered by adopting a dynamic buffering management mode through analyzing the related parameters of the steaming media data to determine the size of the buffer zone, and an effect playing high-code steaming data fast can be fulfilled with lower component configuration.

The invention is a digital lathe error real-time compensator based on lathe external coordinate system offset. It includes calculating and processing module, CNC port and motion control module, sensor and transmitting module. The sensor and transmitting module is linked with calculating and processing module by data cables. The calculating and processing module is linked with CNC port and motion control module by data cables and communication protocol and acquires the input and output, saving, calculating of the signals. The CNC port and motion control module offsets the lathe external coordinate system to extra move the lathe by service system according to compensating value received as signals outputted from the calculating and processing module. The sensor and transmitting module gathers the temperature and heat error signals of the lathe and transmits to processing module after processed. The calculating and processing module may links with the computer so to acquire the command and data transferring and saving between the superior and inferior machine. The invention is of simple structure, handily use, low cost, highly real-time, more efficient compensation with a bright industrializing foreground.

The invention discloses a remote embedded software upgrading technique by using an embedded boot sector Bootloader software upgrading technique to be combined with a communication protocol carrier. The remote embedded software upgrading technique comprises three stages: startup, operation and detection in a first stage, upgrading program transmission in a second stage, and execution of an application program in a third stage. The boot sector Bootloader technique is combined with other communication protocols, such as a general packet radio service (GPRS), a transmission control protocol (TCP)/internet protocol (IP), PROFIBAS and other protocols so as to realize remote software transportation. A boot sector Bootloader firmware protocol of an information system is integrated to reasonably and stably realize software transportation and one-to-many or fixed-point upgrading, and solve the compatibility problem of software upgrading with standard protocol interfaces. Meanwhile, the self-verification and retransmission function of a standard communication protocol is utilized to ensure the reliability of the software upgrading and improve the upgrading success rate and the antijamming capability in severe environments.

The invention provides a network content sharing system and a method, and the network content sharing system comprises a first terminal device, a router and a second terminal device, the first terminal device and the second terminal device are positioned in the same local area network, the first terminal device is connected with the second terminal device by the router, the router distributes IP addresses and configures ports, the first terminal device communicates with the second terminal device through a communication protocol, and the first terminal device sends content information to the second terminal device for display. The invention can directly send the content to a DPF in the house of a relative or a friend from a PC by a point-to-point mode without the need for uploading the sharing content to a certain Internet server or sending invitations to other users for confirmation when sharing network content, and the implementation is simple and convenient.

The invention relates to a common platform system of a vehicle-mounted electronic processing unit and a data communication method of the common platform system. In the system, function expansion modules constitute a real-time Ethernet or a CAN network. The basic system mainly comprises a main control panel which is provided with a central processing unit, the central processing unit is connected with the function expansion modules of the real-time Ethernet through Ethernet modules, and the central processing unit is connected with the function expansion modules of the CAN network through CAN bus modules. The main control panel and all the function expansion modules achieve data communications based on a real-time Ethernet application layer protocol format or a CAN network application layer protocol format, and a communication receiver obtains data and analyzes the data according to the real-time Ethernet application layer protocol format or the CAN network application layer protocol format. According to the common platform system of the vehicle-mounted electronic processing unit and the data communication method of the common platform system, data sharing and resource sharing are achieved among all the function modules, and the technical problem that increasing or decreasing or replacing or new module adding of the function expansion modules is difficult to achieve due to the fact that a uniform physical interface and a communication protocol do not exist in the prior art is solved.

The invention provides a universal audio/video redirection method for cloud access devices under the VDI environment, which includes the following steps: (1) a communication module, a virtual player and a GStreamer plug-in module are established in a client side; (2) a user carries out video-playing operation after remotely logging in a virtual desktop under the VDI environment on the client side, and a server side transmits control commands and multi-media stream data to the communication module by means of a communication protocol; (3) the communication module forwards the control commands and the multi-media stream data to the virtual player; (4) the virtual player loads the GStreamer plug-in module; (5) after the GStreamer plug-in module is loaded, the received data are forwarded to the GStreamer of the client side, and the GStreamer automatically creates a media-processing module to start playing audio and video. The invention realizes the smooth playing of audio and video when cloud access devices remotely access the virtual desktop under the VDI environment.

The invention discloses an electronic tag intelligent card port management system which comprises a card port control device arranged on the side of a card port driveway, an automatic banister, a Chinese-English display screen, a cost display screen, a camera device, a monitoring work station and a background control centre, wherein the automatic banister and the Chinese-English display screen are respectively connected with the card port control device by cables; the card port control device, the cost display screen and the camera device are respectively connected with the monitoring work station by the cables; and the monitoring work station is connected with the background control centre by a network. The electronic tag smart card port management system also comprises an electronic tag and a card reader, wherein the electronic tag comprises an encapsulation shell as well as coupling elements and a chip which are both arranged in the encapsulation shell, and the electronic tag is arranged on a front windshield of a vehicle cockpit; the card reader is arranged on the side of the card port driveway, is connected with a radio frequency antenna, and transmits radio frequency signals between the radio frequency antenna and the electronic tag; and the card reader is connected the card port control device by the cables and adopts the wiegand communication protocol to communicate with the card port control device.

The invention discloses a method and a system for wireless concentrated collection and management of energy measurement data. The system comprises wireless measurement instruments, collectors, a concentrator, wireless GPRS communication modules, and a system management center. The system is characterized in that: the system adopts a quantification method, a timing method, a multi-channel redundancy communication technology, and a high efficiency forward error correction channel coding technology, such that power consumption is reduced, and reliability and collection success rate are ensured; different wireless interfaces and different communication protocols are adopted in the communication between each subsystems of the wireless concentrated collection and management system, different wireless transmission frequencies are adopted in different wireless interfaces, and a transparent data transmission method is adopted, such that wireless data communication reliability, system compatibility, system flexibility and system applicability are ensured. With the system and the method provided by the present invention, data information which is real-time, real and reliable is provided for management departments, and real-time monitoring, statistics gathering, and analyzing of measurement instrument operation status are realized, such that managing and administrating capacities of management departments are improved.

The invention discloses a control method for intelligent household devices, comprising steps of providing an operation interface for a user on a mobile terminal side to input an intelligent household control order, determining an intelligent household device corresponding to the control order and a communication protocol corresponding to the intelligent household device when receiving the control order which is inputted based on the operation interface, converting the control order to control information corresponding to the determined communication protocol, transmitting the converted control information to the corresponding intelligent household device in order to make the intelligent household device finish the corresponding respond operation according to the control information. The invention also discloses a control device for intelligent household devices. The control method and the device for intelligent household devices can manage various intelligent devices in the home in a centralized manner, finish the adaption between the communication protocols and control orders between various intelligent devices, and provides the software method for interconnection and intercommunication between intelligent devices and the system solution method.

The wireless upgrading method includes steps: obtaining information of upgrade file from database of upgrade file; carrying out comparison between information of upgrade file and information of current file of logged wireless terminal, and sending out selectable prompting message based on the compared result; returning back file list to be upgraded to wireless terminal based on information of upgrading request sent from user; downloading and upgrading the upgrade files confirmed by user based on acknowledge information of user. Detecting software of wireless terminal by server end, the invention does not need client end to carry out active detection so as to simplify user's operation. The disclosed method and system can carry out automatic switching between WTCP and TFTP two communication protocols, and support breakpoint transmission.

This invention discloses an adaptive revolving code gateway with many switching functions including a decoder partly decoding a source video information, a channel automatic detection module for automatically detecting the state of a connection channel when a user accesses, a customer end configuration enquiry module inquiring the state of an end device by a simple communication protocol of the revolving code network and end device, a control module receiving network channel information tested by the automatic detect module and end device information enquired by the inquired module to analyze and arbitrate the information and turn it to input revolving code parameter, a video revolving device processing the source video in many ways.

The invention belongs to the technical field of analog IC (Integrated Circuit) design, in particular to a high-bandwidth low-power consumption frequency-compensation three-stage operational amplifier. The amplifier comprises an input stage, a second stage, an output stage, a common mode feedback stage, a comprehension circuit, an internal feedforward circuit, wherein the second stage is connectedwith the input stage, the output stage is connected with the second stage and used for amplifying a signal output by the second stage and driving an external load circuit, the common mode feedback stage extracts the common mode level of the differential output stage and stabilizes the common mode level, the comprehension circuit comprises a traditional trsanscondutance comprehension circuit, a miller comprehension circuit and a resistor for separating a high-frequency zero pole, and the internal feedforward circuit is used for comprehending an internal additional pole and forming a push-pull circuit together with the output stage to reduce static power consumption. The three-stage operational amplifier realizes high gain, high bandwidth and high stability under the condition of little DC power consumption and can be used in a high-speed analog-digital conversion circuit, such as a sigma-delta modulator suitable for the bandwidth of an LTE (Line Terminator Equipment) wireless communication protocol.

The invention relates to an explosion-proof reconnaissance robot, which comprises an explosion-proof reconnaissance robot moving platform, an explosion-proof environment parameter acquisition mechanism, an explosion-proof infrared data acquisition mechanism, an explosion-proof camera mechanism and a host computer console. Crawler belt falling or rolling over does not happen when the explosion-proof reconnaissance robot passes an object with different left and right heights; the explosion-proof reconnaissance robot can still travel safely when high-temperature flame burns a body per se or crawler belts; through the communication protocol and the control mechanism, the chassis control algorithm driven by the target can be realized, and the response speed and control precision of the robot are improved; the movement performance, safety and applicability of the reconnaissance robot in the complex, harsh or even high-risk environments are improved, the survival rate of the reconnaissance robot is increased, the reconnaissance robot can enter the scenes of dangerous disasters and accidents, such as radioactive, high-temperature, flammable and combustible, toxic, oxygen-deficient and heavy-smoke scenes, for reconnaissance, data acquisition and even rescue by replacing workers, and thus the problems such as personal safety of workers and insufficient data acquisition at the scenes areeffectively solved.

The invention provides a vehicle identification data processing method. The method includes the steps of obtaining vehicle bus data through a vehicle bus, wherein the vehicle bus data include an engine identification code and further include at least one of vehicle bus configuration data, vehicle system configuration data, trip computer parameters, the vehicle bus type, the vehicle communication protocol category and vehicle delivery capacity; generating vehicle genetic data according to the combination of the vehicle bus data, uploading the vehicle genetic data to a data processing server, wherein the vehicle genetic data are used for vehicle identification. According to the vehicle identification data processing method, the vehicle genetic data uploaded to the data processing server have high uniqueness, vehicle identification can be achieved according to the vehicle genetic data so that different vehicles can be distinguished, and the method can be widely applied to various fields such as the traffic management field, the investigation field and the vehicle positioning field. The invention further provides a vehicle identification data processing device and system.

The invention discloses a road lamp wireless detection control system, comprising a road lamp (1), a monitoring center (2). Each road lamp is mounted with a lamp head detection and energy saving controller (3) which is radio connected to a radio master controller (4); the radio master controller (4) is connected with a GPRS radio communication network (6) through a GPRS radio communication module (5) therein, the GPRS radio communication network is connected with INTERNET (7), and a monitoring center (2) is connected to the INTERNET (7) by TCP/IP communication protocol. The invention is capable of acquiring working condition of road lamp at any time, discovering and handling failure thereof, saves electric energy and prolongs life at the same time with the proviso that normal use of the road lamp system is not affected.

The invention discloses an intelligence education E-card system platform based on internet of things and cloud computation. The platform comprises an IaaS (Infrastructure as a Service) unit, a PaaS (Platform as a Service) unit, an SaaS (Software as a Service) unit, a data collector and a sensing terminal, wherein the IaaS unit is responsible for transferring and processing information obtained by a sensing layer by using infrastructure as service; the PaaS unit makes up a comprehensive service platform with RFID (Radio Frequency Identification) and the data communication technology by using cloud computation as a fundamental platform; the SaaS unit supports a plurality of front-end browsers and is connected to the infrastructure through connectivity access points by adopting industry-advanced technical standards and technical specifications and adopting an SOA (Service-Oriented Architecture) system structure; the data collector supports a plurality of communication protocols, applies to a plurality of communication modes, adopts an I/O (Input/Output) model-IOCP (I/O Completion Port) mode, and uses threads for pool-processing asynchronous I/O requests; and the sensing terminal comprises a POS (Point-of-Sale) machine, a building machine, a recognizing machine, multimedia, a channel machine, a vehicle-mounted machine, a water controller and other specific-purpose terminal equipment.

The invention discloses a protocol self-adaptive internet-of-things gateway system. The protocol self-adaptive internet-of-things gateway system comprises a communication interface module, a central processing unit and a data storage module. The central processing unit comprises a self-adaptive protocol module, a data analysis module, a data encryption module, a data transmission module and a WEB service module. Internet-of-things devices and access interfaces of a third-party system are offered externally by the communication interface module. Self-adaptive processing is conducted on a communication protocol of each connected internet-of-things device by the self-adaptive protocol module through configuration data, so that an interaction order which can be identified by each internet-of-things device and a data analysis method are generated. The data transmission module supplies a data obtaining interface externally. Through a communication order, an external system or an upper gateway node obtains data in a gateway or operates the internet-of-things devices used for managing the gateway. According to the WEB service module, a user name and a code are input by a user according to the HTTP, so that the user has direct access to limited WEB pages inside the gateway. The protocol self-adaptive internet-of-things gateway system has the advantages of being good in expansibility and strong in cascading capacity.