54results about How to "Improve real-time communication" patented technology

The invention discloses a distributed network isolating system and method. The system comprises an inner-network host, an outer-network host and a security isolation device. The security isolation device is arranged at the boundary of an inner network and an outer network, and comprises a plurality of communication ports for transceiving inner-network and outer-network data packets and being in communication with manager computers. The security isolation device is connected with the inner-network host and the outer-network host through a light opening or an electricity opening by means of a cable or an optical fiber. Client side software is arranged on the inner-network host and the outer-network host. A security channel based on a private protocol is established between cores of operation systems of the inner-network host and the outer-network host. Data exchange can be conducted between an inner-network designated application and an outer-network designated application through the security channel. Meanwhile, the data packets between the networks are filtered at the boundary between the inner network and the outer network, the security of the inner network and the outer network is ensured, various existing applications are supported, and the distributed network isolating system has the advantages of being high in communication efficiency, simple in strategy configuration and high in universality.

The invention relates to an initiative appointment-making type intelligent elevator dispatching system. The initiative appointment-making type intelligent elevator dispatching system comprises a mobile phone client terminal, a dispatching total server, a local intelligent elevator dispatching server and an elevator controller, wherein the mobile phone client terminal is used for collecting and transmitting user elevator taking information; the dispatching total server is connected with the mobile phone client terminal in a wireless communication mode, receives and distributes the user elevator taking information transmitted by the mobile phone client terminal, and meanwhile transmits feedback information to the mobile phone client terminal; the local intelligent elevator dispatching server is connected with the dispatching total server in a wireless communication mode or a wired internet mode, receives the user elevator taking information distributed through the dispatching total server, obtains an elevator route planning scheme and anticipated waiting time according to the information, and feeds back the elevator route planning scheme and the anticipated waiting time to the dispatching total server; the elevator controller is connected with the local intelligent elevator dispatching server, and controls parking of an elevator according to the elevator route planning scheme transmitted by the local intelligent elevator dispatching server. Compared with the prior art, the initiative appointment-making type intelligent elevator dispatching system has the advantages that congestion of the elevator in concentrated using sections such as morning-evening rush hours is relieved, and the energy consumption of the elevator is saved.

The invention discloses a control method for an oil purifier integrated with automatic detection and purification, and an intelligent controller thereof. The intelligent controller is composed of a power module, a memory module, an interface, an integrated LCD controller, and an ARM processor. A data acquisition part includes acquisition of detecting data of an oil quality online detection unit, heating tank liquid level data, heating tank temperature data, vacuum tank pressure data, vacuum tank liquid level data, infrared switch state data, oil-water interface meter state data, pressure sensor 1 data, pressure sensor 2 data, and the like. A control part includes controlling a start-stop of the oil quality online detection unit, an on-off of an oil inlet valve, an on-off of the outlet valve, a start-stop of an oil inlet pump, a start-stop of an oil outlet pump, adjustment of a vacuum pump, an on-off of an alarm, and the like. According to the invention, the intelligent and unattended operation of the oil purifier integrated with the automatic detection and purification is realized with the high energy efficiency; the oil can be changed from conventional replacement based on time to replacement based on the oil quality; and the positive significance is realized for reducing the oil-using equipment failures and prolonging the service life of the equipment.

The embodiment of the invention discloses a data communication method, intelligent equipment and an intelligent gateway. The data communication method includes the following steps that: the intelligent equipment sends a broadcast message, wherein the broadcast message includes an equipment identifier of the intelligent equipment, so that the intelligent gateway within a target range of the intelligent equipment can authenticate the intelligent equipment through the equipment identifier; the intelligent equipment receives a response message sent by the intelligent gateway, wherein the responsemessage is a message fed back by the intelligent gateway after the intelligent gateway successfully authenticates the intelligent equipment; and the intelligent equipment establishes a first network connection with the intelligent gateway through a local area network, and performs data communication with the intelligent gateway based on the first network connection, so that the intelligent gatewaycan control the intelligent equipment. By adopting the scheme of the invention, the communication efficiency can be improved.

The invention relates to the technical field of an unmanned aerial vehicle and more specifically relates to a cluster unmanned aerial vehicle distributed rapid communication system and a communication method. The cluster unmanned aerial vehicle distributed rapid communication system is characterized in comprising a plurality of unmanned aerial vehicles and an upper computer of a ground station. The plurality of unmanned aerial vehicles and the upper computer of a ground station are serially connected in sequence. According to the system and the method, the robustness and communication timeliness of the communication system are improved. Communication tasks are distributed to the unmanned aerial vehicles, thereby realizing distributed communication, the robustness and anti-interference performance of the communication system are improved, and even if any unmanned aerial vehicle loses communication, the communication operation of the whole system is not influenced. The function of the ground station is weakened, and the ground station is only a tool for emergency processing and information display, rather than the core of the whole system.

The invention relates to a communication method and device, and in particular relates to a VxWorks-based lithography machine double-workbench communication method and device, aiming at solving the problem that a conventional VxWorks operating system using a TCP (Transmission Control Protocol) or an IP (Internet Protocol) is poor in communication real-time performance. The communication method and the device are realized based on a double-workbench lithography machine, an upper computer and a VME (Virtual Machine Environment) industrial personal computer, and adopts double channels of the TCP and a UDP (User Datagram Protocol) for communication, wherein the channel of the TCP is used for transmitting instructions of the upper machine, the channel of the UDP is used for transmitting execution result information of the VME industrial personal computer, a buffering queue is used for caching all the instructions and data information which are then read out one by one, and finally executed and sent, and a zero copy buffering area is adopted for nesting word interfaces. The communication method and device are used for communication when a lithography machine double-workbench is arranged in an environment which is provided with the VxWorks operating system and has access to the Ethernet.

The invention relates to an electrical energy data acquiring system based on a wireless mesh ad hoc network, which comprises a main station system, a concentrator and a collector; wherein the main station system comprises a database server, a communication server and a WEB server; a three-in-one distribution transformer monitor is adopted by the concentrator, and comprises a metering monitoring module, a wireless ad hoc network module, a GPRS / CDMA communication module, a first memory and a first microprocessor; the collector comprises an I-type wireless electric energy meter which includes a metering module, the wireless ad hoc network module, a second memory and a second microprocessor; the three-in-one distribution transformer monitor is connected with the wireless mesh ad hoc network formed by the I-type wireless electric energy meter; and the three-in-one distribution transformer monitor is also connected with the main station system. By adopting the wireless mesh ad hoc network communication technology, the system can realize the embedded development technique with the three-in-one function of a gateway meter, the concentrator and the distribution transformer monitor, thus reducing the costs of manufacturing, constructing and running as well as improving the real-time property of communication.

The invention discloses an rpc communication method based on rtos, and the method comprises the steps: enabling a client side to call a function interface provided by a client stub, packaging a data request message of the client side into a proto file format, and transmitting the data request message to probuf at a next stage for processing; enabling probuf to perform text formatting on the data request message packaged into a proto file format according to a probuf protocol, and then executing text serialization on the data request message to obtain binary communication data; transmitting binary communication data obtained by text formatting and text serialization to a network processing module, and performing http / 2 protocol packaging on the binary communication data. According to the invention, the communication real-time performance between the client and the server based on the real-time operating system is improved, the occupation ratio of network resources is reduced, the data processing flow of local calling is simplified, and the convenience of business layer expansion and maintenance is facilitated.

The invention discloses an error correction-extended Kalman filter (EC-EKF) algorithm based optical intelligent antenna wave beam control method, aiming to solve the problem of low reliability of the link in existing high-speed mobile wireless laser communication. According to the technical scheme, an optical intelligent antenna with a structure of regular icosahedron is adopted, each surface of the regular icosahedron has a receiving unit and a transmitting unit, and the units are numbered, so that 360-degree coverage is realized; motion information of a peer communication machine is predicted through the EC-EKF algorithm, so as to determine which coverage range of the transmitting unit the peer communication machine is in, and a corresponding laser transmitting unit is opened, so as to capture and track a target to continue the communication process; and the EC-EKF algorithm is extended, and a prediction value of present moment is corrected with an error value of a previous moment so as to obtain the motion information of the target at next moment. According to the method, while the real-time performance and mobility of communication are ensured, the reliability of the communication system link is improved. The method can be applied to the field of high-speed mobile wireless laser communication.

The invention discloses a medium-voltage carrier system applied to a rural network centralized metering platform. A main carrier machine and an auxiliary carrier machine are arranged at two ends of a 10 KV overhead line, respectively. The main carrier machine is communicated with a main station system through an Ethernet port or a RS-232 serial port. The auxiliary carrier machine is communicated with power distribution terminal equipment through an Ethernet port or a RS-232 serial port. Carrier signals, received from the main station system, are sent to capacity couplers by the main carrier machine through a carrier signal interface; then enter into a signal transmission loop, composed of the 10KV overhead line and the ground, through a coupling filter; and are sent to the auxiliary carrier machine through an isolation capacitance and the coupling filter. Original data, sent from the main carrier machine, is restored by the auxiliary carrier machine and then sent to the power distribution terminal equipment. The network carrier communication system has the large-scale full-coverage communication networking capacity and comprehensively meets the acceptance indicators, namely telemetering, remote signaling and remote control systems of the distribution automation made by the State Grid Company.

The invention provides a multi-frequency-point frequency hopping communication method based on a power line carrier, which has the advantages of high communication rate, strong real-time performance and strong anti-interference performance, and comprises the following steps of: A, carrying out full-frequency-point channel scanning to obtain an optimal communication frequency point; B, adopting anoptimal communication frequency point for communication; C, if failure occurs, turning to D; Otherwise, turning to B; D, carrying out communication by using the one third frequency point with the lowest frequency in all frequency points, and if the communication fails, turning to E; Otherwise, turning to B; E, carrying out communication by using 1 / 3 frequency points with frequencies in the middlein all the frequency points, and if the communication fails, turning to the step F; Otherwise, turning to B; F, carrying out communication by using one third frequency point with the highest frequencyin all frequency points, and if the communication is successful, turning to B; Otherwise, B, C, D, E and F are executed in sequence, and if the two rounds fail, the data transmission is abandoned.

The invention discloses a direct-current power distribution equipment remote monitoring system, and relates to the technical field of measurement and control. The direct-current power distribution equipment remote monitoring system is installed on a direct-current power distribution site, can detect and display the operation state of each line in real time and upload the data to a cloud server, realizes the functions of mobile terminal remote monitoring management, data analysis and the like, and can provide multiple alarm modes such as local alarm, mobile terminal information prompt and the like. The remote monitoring system comprises a manufacturer server, a user terminal and a plurality of monitoring units which are distributed in different regions and installed on the operation site ofthe direct-current power distribution equipment. The monitoring unit transmits direct-current power distribution equipment operation data and alarm information which are detected in real time to themanufacturer server, and the manufacturer server collects and arranges the operation data and prompts the alarm information to the user terminal in time. The user terminal accesses the network throughWiFi and accesses the manufacturer server through the Internet.

Optical fiber as transmission media is adopted in the annular CAN bus network including each CAN node, module of photovoltaic conversion and deducted network interface. The invented CAN bus network does not use CAN transceiver. Advantages of the ring type optical fiber CAN bus network are: eliminating network blocking, reliable communication, simple circuit and high interference immunity. Interference killing feature of optical fiber CAN network being better than twisted-pair CAN network meets requirements on site of inclement industries.

The invention relates to an automobile gateway controller, which comprises a plurality of network control units used for receiving and transmitting network messages; the hardware network acceleration unit judges the type of the network message received by the network control unit and divides the network message into a forwarding message and an analysis message; the network control units notify the hardware network acceleration units after receiving the network messages, if the network messages are forwarding messages, the hardware network acceleration units directly forward the forwarding messages to the corresponding network control units in the multiple network control units, and if the network messages are the analysis messages, the hardware network acceleration units directly forward the forwarding messages to the corresponding network control units in the multiple network control units. And the hardware network acceleration unit sends the analysis message to a real-time core. According to the invention, through the automobile gateway controller based on the hardware network acceleration unit, forwarding messages which can be forwarded directly and analysis messages which need to be analyzed by an application layer are distributed to different hardware units for processing, so that the real-time performance and the stability of in-automobile message forwarding are improved.

The invention provides a six-foot robot control system and a control method thereof, and relates to the robot control system and the control method thereof. The objective of the invention is to solve problems that the six-foot robot control system is poor in communication real-time performance, complex in control and poor in man-machine cooperation and integration. The six-foot robot control system comprises the following models: a motor enabling control model, a stop module, a parameter setting module, a position reset module, a posture control module, a gait control module, a single leg control module, a standing and retracting control module, a wheel type control module and a position display module. The robot is controlled by utilizing the six-foot robot control system so that communication real-time performance of the robot control system can be enhanced, control complexity of the robot can be reduced and man-machine cooperation and integration can be enhanced. The six-foot robot control system is suitable for six-foot robot control.

The invention relates to an initiative appointment-making type intelligent elevator dispatching system. The initiative appointment-making type intelligent elevator dispatching system comprises a mobile phone client terminal, a dispatching total server, a local intelligent elevator dispatching server and an elevator controller, wherein the mobile phone client terminal is used for collecting and transmitting user elevator taking information; the dispatching total server is connected with the mobile phone client terminal in a wireless communication mode, receives and distributes the user elevator taking information transmitted by the mobile phone client terminal, and meanwhile transmits feedback information to the mobile phone client terminal; the local intelligent elevator dispatching server is connected with the dispatching total server in a wireless communication mode or a wired internet mode, receives the user elevator taking information distributed through the dispatching total server, obtains an elevator route planning scheme and anticipated waiting time according to the information, and feeds back the elevator route planning scheme and the anticipated waiting time to the dispatching total server; the elevator controller is connected with the local intelligent elevator dispatching server, and controls parking of an elevator according to the elevator route planning scheme transmitted by the local intelligent elevator dispatching server. Compared with the prior art, the initiative appointment-making type intelligent elevator dispatching system has the advantages that congestion of the elevator in concentrated using sections such as morning-evening rush hours is relieved, and the energy consumption of the elevator is saved.

The invention provides a method for synchronizing control and communication of an Ethernet system. The method comprises the steps of setting a state identification for a control task; itinerantly scanning a current time during the operation of a device, and respectively transmitting a periodic message and an aperiodic message within a periodic message time slice and an aperiodic message time slice; when the transmission of the periodic message and the aperiodic message is completed, judging whether the state identification of the control task is 1; if yes, namely meaning that the control task is not executed within a current macro period, executing the control task, and setting the state identification of the control task to be 0; and otherwise, namely meaning that the control task is executed within the current macro period, abandoning the execution of the control task. According to the method, the period synchronization of a user layer function block achieving a control function and link layer communication achieving a communication function can be achieved, the invalid execution of the function block and the invalid transmission of data can be avoided, and the operation efficiency and communication real-time performance of the system can be effectively improved. The method can be widely applied to the field of the industrial control.

The invention discloses a device network access method based on PMK. The method comprises the following steps: connection step: when a specified network is connected for the first time, storing the information of the specified network to a WIFI module of the device; configuration step: calculating a main key corresponding to the specified network according to the information; storage step: storingthe main key in the WIFI module of the device; and reading step: reading the main key in the WIFI module, so that the device connects the specified network again. By adoption of the device network access method, the network connection speed of the intelligent device can be improved, the network connection time is shortened, and the power consumption of the device is reduced.

Optical fiber as transmission media is adopted in the annular CAN bus network including each CAN node, module of photovoltaic conversion and deducted network interface. The invented CAN bus network does not use CAN transceiver. Advantages of the ring type optical fiber CAN bus network are: eliminating network blocking, reliable communication, simple circuit and high interference immunity. Interference killing feature of optical fiber CAN network being better than twisted-pair CAN network meets requirements on site of inclement industries.

The invention discloses a bus device and a method by adopting synchronous mode switching and automatic adjustment of frame priority. The device comprises a central clock management node and a plurality of communication nodes which are interconnected together through an instrument bus. A frame transmission working mode comprises the steps of firstly conducting bus arbitration by adopting a synchronous serial communication method in a central clock mode, then automatically switching to a source clock mode and finally realizing high-speed data transmission by adopting a synchronous parallel communication method. The scrabbling for bus arbitration is conducted by adopting a bit-by-bit competition method of an arbitration frame header, the arbitration frame header contains a priority adjustment field, a bus protocol realizes the automatic adjustment of the frame priority by changing the value of the priority adjustment field, and the real-time performance of bus communication can be effectively improved. The bus device provided by the invention has the advantages that the data transmission speed is high, the real-time performance is strong, the structure is simple, and the nodes on the bus are supported to conduct multi-host communication and form a bus topological structure network.

The invention discloses a communication method for a security and stability control system device, and the method is executed by a substation and comprises the following steps: determining a corresponding relationship between an identity label of a generator tripping execution station and a framing sequence number in a communication protocol; during power-on, judging an identity identifier of a generator tripping execution station which is put into work of the substation; if it is judged that the first all-machine execution station is put into work, determining that the data of the first all-machine execution station is included in a sub-frame corresponding to the first all-machine execution station; if it is judged that the second generator tripping execution station does not work, deleting the sub-frame corresponding to the second generator tripping execution station in the data packet to be sent to the master station; and sending the data packet to a master station. The method is improved on the basis of the communication mechanism of the current stability control device, firstly, whether useless sub-frames exist in sub-frames can be automatically identified according to the channel switching information of the device, so the sub-frames are eliminated, the total number of the sub-frames is reduced, and the communication real-time performance is improved.

The invention discloses an intelligent building indoor air environment maintenance system and method. An intelligent building is divided into a plurality of building spaces. The system comprises a plurality of groups which are used for distributed layout and calculation; each group comprises a regulation and control decision module, a plurality of air quality sensors and a plurality of air environment maintenance devices. Each air quality sensor is used for collecting air quality data of a corresponding building space. Each air environment maintenance device is used for maintaining, regulatingand controlling the air quality of the corresponding building spaces, and each regulation and control decision module is used for analyzing, calculating and determining a regulation and control strategy according to the air quality data of the corresponding building space and issuing a regulation and control instruction to the air environment maintenance equipment in the corresponding building space. The system also comprises a central server used for processing a preset task, transmitting data among groups, monitoring the running state of each group and adjusting the group structure. The invention has the advantages that the communication load can be reduced, the communication real-time performance can be improved, and each maintenance device can be fully optimized in a targeted manner.

The invention discloses a system and method for maintaining the indoor air environment of an intelligent building. The intelligent building is divided into multiple building spaces. The system includes: multiple groups for distributed layout and calculation; each group includes control and decision-making Module, multiple air quality sensors and multiple air environment maintenance equipment, the air quality sensor is used to collect the air quality data of the corresponding building space, the air environment maintenance equipment is used to maintain and regulate the air quality of the corresponding building space, and the control decision module is used to Analyze, calculate and determine the control strategy for the air quality data of the corresponding building space, and issue control instructions to the air environment maintenance equipment in the corresponding building space; the central server is used to process preset tasks, data transmission between groups, and each group Operation status monitoring and group structure adjustment. It has the advantages of reducing the communication load, improving the real-time performance of communication, and fully optimizing each maintenance device in a targeted manner.

The embodiment of the invention discloses a communication control method and device, a storage medium and electronic equipment. The communication control method includes: continuously detecting the trigger signal through the sensor; after the trigger signal is detected, controlling the communication connection mode of the wireless communication device to be switched from the slave connection modeto the master connection mode, and sending a matching connection request signal; and executing a predetermined control operation in response to establishment of connection with the second device. Thus, the first device and the second device can establish connection quickly, the user experience is improved, and the communication reliability and real-time performance are improved.

The invention relates to a data interaction intelligent terminal system and a communication method. A host terminal comprises a core control unit, a DIDO isolation card circuit, an AI isolation card circuit, an AO isolation card circuit, a co-processing unit interface circuit, a series port isolation card circuit, an integrated communication card circuit, a man-machine interaction circuit, a PWM counter isolation board circuit, an IO expansion card circuit and a power management unit. The terminal system comprises a data interaction intelligent host terminal, a data bus and slave terminals from a first to an nth. In the communication method, a beacon fire relay main module and a beacon fire relay slave module are used for communication. Flexible assembly features are achieved; high-efficiency and powerful secondary development characteristics and high-efficiency and convenient slave expansion characteristics are achieved; the host gets rid of a mode of selecting a slave unit through acommunication bus, the original two-way response-type communication is changed to a relay response mode, and the communication real-time performance is improved; and the anti-interference ability andthe stability are stronger, plug and play of a slave unit can be achieved, and cascade-type infinite expansion is realized.

The invention discloses a centralized communication control device for an embedded computer. The device comprises a main system board, an expansion board, a first functional board, a second functional board and a power module, wherein the expansion board is connected with the main system board and is provided with a peripheral component interconnect (PCI) bus; and the first and second functional boards are connected with the expansion board respectively. Heat of a main chip is conducted to a radiator on the side wall of a case by copper pipe heat conducting technology, so that the temperature of the main chip is lowered and the device is particularly suitable for severe environments in the industrial field; simultaneously, the processing capability and performance of a system are enhanced and system stability is improved.

The invention discloses an external safety power supply system for a gas meter. The external safety power supply system at least comprises the gas meter, an intrinsic safety power source and a cloud system. The intrinsically safe power supply at least comprises an intrinsically safe transformer and an ID chip, the power input end of the intrinsically safe transformer is connected with commercial power and used for converting the commercial power into intrinsically safe direct current, and the power output end of the intrinsically safe transformer is connected to a power interface of the ID chip and a power interface of the gas meter. The ID chip is at least used for receiving an identity verification request message sent by the gas meter and making a reply; the gas meter at least comprises an MCU and a power module, the MCU is in communication connection with the ID chip, and the power module is used for supplying power to the gas meter; the cloud system is in two-way communication connection with the gas meter, and the cloud system is at least used for storing report data of the gas meter, issuing a gas meter operation instruction and receiving and feeding back an alarm prompt. Safe power supply of the gas meter is guaranteed, use of disposable batteries is reduced, and the frequency of interaction with a cloud system is increased.

The invention provides a target tracking method and device, electronic equipment and a storage medium, and relates to the technical field of target tracking, the method comprises the following steps: a plurality of OTFS integrated signals sent by a vRAN base station are received, the plurality of OTFS integrated signals are coded and modulated in a time delay-Doppler domain, and pilot frequencies are different; demodulating the plurality of OTFS integrated signals based on air calculation, and determining the relationship between the channel information of the plurality of OTFS integrated signals in the time delay-Doppler domain and the pilot frequency; and target movement information is determined based on the relationship between the channel information and the pilot frequency, and the target movement information is used for realizing target tracking based on general inductance calculation integration. According to the invention, low-error and high-precision target tracking can be realized, and the target tracking efficiency is improved through integration of communication, perception and calculation.