37 results about "Design communication" patented technology

The invention provides a chip data burning remote protection system and method. The chip data burning remote protection method includes the steps that chip information file resources of chips in various models are stored in a server terminal, chip information files comprise file protection information, file protection zone bits and file protection addresses, a burner terminal is powered on, a PC terminal is respectively communicated with the burner terminal and the server terminal, the PC terminal obtains and analyzes the chip information file corresponding to the current to-be-burnt chip from the server terminal to transmit the chip information file to the burner terminal, and the burner terminal burns protection data on the current to-be-burnt chip according to the received chip information file. According to the chip data burning remote protection system and method, remote protection on chip data burning is achieved through the Internet, the safety performance of the chip data is effectively protected, and the chip data burning remote protection system and method have the advantages of being rapid and convenient to use, efficient and low in cost; in addition, the chip data burning remote protection system and method are achieved mainly by designing communication protocol commands, the problem that network accessing is disabled is solved, communication protocols of the burner terminal and the PC terminal are defined and designed by the burner terminal and the PC terminal, and therefore the protocols have the flexibility and the security.

The invention provides a communication method of a front end page and a rear end server. The method includes the steps that first, when a user opens the front end page, the rear end server sends a connecting assembly, a packaging assembly and a data exchange assembly to the front end page of the user, and the connecting assembly is used for making the front end page and the rear end serve establish TCP long connection; second, when the user sends a message packaged according to a pre-determined packaging format to the rear end server through the packaging assembly on the front end page, the rear end server judges a mark value of a preset mark in the packaging, and if the mark value is a first mark value, the message is unpackaged, data in the message are extracted and forwarded to front end pages of other users in the same chatting area as the front end page. With the method, the rear end server can push data to the front end page through long connection, an autonomously-designed communication protocol is used, useless data in data transmission are reduced, and transmission efficiency is improved.

The invention discloses a radar communication waveform design method based on sparse frequency. The method includes the steps that step1, a radar Tag system receives scattering radar echoes, and a power spectral density matching method is adopted for designing sparse frequency radar waveforms for the scattering radar echoes; step2, eigen decomposition is performed on the sequence of the sparse frequency radar waveforms to obtain an eigenvector group, and part of the eigenvector group is used for designing communication waveforms; step3, the communication waveform obtained in the step2 are embedded into the obtained sparse frequency radar waveforms, and obtained hybrid waveforms are sent to a radar receiver. Compared with linear frequency modulation waveforms, the sparse frequency waveforms can widen the occupied space of a frequency band of communication signals, and therefore a higher communication rate can be obtained; meanwhile, communication signal samples are mutually orthogonal and related with the sparse frequency waveforms to some degree, and therefore it can be guaranteed that the error rate and interception rate of the communication signals are low.

The invention discloses a self-adaptive networking method of a combat intelligent sensing system. The method comprises the following steps: through the time-slot self-adaptive time-division synchronous self-networking communication technology designed based on the LoRa technology, taking IPPS of a Beidou/GPS as synchronization standard of a communication network, taking an unmanned aerial vehiclerelay platform as a center node of a communication system and a controller of communication time slot scheduling adjusting, enabling various wireless sensing terminals in the combat intelligent sensing system to perform communication networking according to a pre-designed communication time slot scheduling rule and to perform real-time communication with a far-end data storage analysis system located out of the military battlefield. The information interaction between the wireless sensing terminals and the storage analysis system is realized by adopting the time-slot self-adaptive time-division synchronous self-networking communication technology, the method has the advantages of being flexible in networking, reliable in running, low in communication, far in distance and high in efficiency, and capable of ensuring the instantaneity of the communication and improving the communication successful rate. Through the method disclosed by the invention, the information combat level of the army can be effectively improved, and the actual combat demand under the new environment is satisfied.

A unit is disclosed for validating a communication network of an industrial automation and control system. The validation unit can include a planner module configured to store plan data defining a designed communication network of an industrial automation and control system, and a collector module configured to collect effective data defining a deployed communication network of the industrial automation and control system. A difference detector can detect differences between the designed communication network and the deployed communication network using the plan data and the effective data such that faults or errors in a deployed communication network of the industrial automation and control system can be efficiently detected.

The invention provides a design method of an agricultural internet of things intelligent gateway. According to the method, a wireless sensor network is constructed by adopting the Zigbee technology, the network is divided into a sensing layer, a network layer, an information processing layer and a comprehensive application, the wireless network is implemented by a node terminal and a coordinator arranged on the sensing layer, a communication protocol is designed to complete the transmission and processing of data, the designed communication protocol is composed of an application layer communication protocol, a serial port communication protocol and a node communication protocol, the application layer communication protocol and the serial port communication protocol are converted through agateway service program, and the node communication protocol implements the package of wireless network data.

The invention provides a novel method for designing a communication protocol of high-voltage and direct-current (HVDC) thyristor valve base electric equipment. Based on the controller area network (CAN) protocol, the communication protocol between a pole control system and the valve base electric equipment is set according to different working conditions of a thyristor valve, and information exchange between the valve base electric equipment and the pole control system can be completed by adopting a serial coding mode. The design is simple, clear, reliable and stable, and contains all the basic working conditions of thyristor valve operation. Byadopting the communication protocol, besides the basic communication requirement between the pole control system and the valve base electric equipment can be met, the strong interference resistance of a CAN bus can be introduced to a thyristor valve secondary control system to greatly improve the operation reliability of the system. A multi-master CAN networking communication mode is adopted between the valve base electric equipment and a control protective system, and valve base electronics (VBE) can monitor status changes at any time occurring in the thyristor valve and report the detection information to the control protective system. The networking mode ensures real time performance of monitoring the valve by the VBE.

According to a first aspect of the present invention, an objective function is defined for minimizing a number of candidate tree graphs for accommodating the communication paths and a first constraint equation is defined for causing all of the candidate tree graphs to form a tree. A second constraint equation is defined for accommodating the communication paths in one of the candidate tree graphs. A third constraint equation is defined for determining whether each of the candidate tree graphs is used to accommodate the communication paths. A mathematical programming problem formed by the objective function, and the first, second and third constraint equations is solved to obtain a plurality of trees in which the communication paths can be accommodated.

The invention discloses a photovoltaic grid-connected Web monitoring system based on Linux. The system comprises a photovoltaic grid-connected system, a core controller FPGA, a Web server, a computer or a mobile terminal and so on. A heterogeneous dual-core mode is employed in the core controller FPGA. A core 1 generates a control signal for the photovoltaic grid-connected system. The core 0 carries a Linux system to operate functions such as network service, data storage and monitoring. Firstly, the Linux system is established in the core 0 of the core controller FPGA; secondly, the photovoltaic grid-connected Web monitoring system is designed, wherein the design comprises steps of selecting a Web server, designing system architecture, designing a common gateway interface (CGI), selecting a database, designing communication between the database and the CGI, and designing Web monitoring interface; and finally, application design of the core 0, start of a heterogeneous dual-core processor and selection of a communication mode are provided. According to the selected CGI interface technology, the server and a webpage can interact with each other very well. According to the transplanted Boa server, few resources are occupied and the system overhead is low. According to the monitoring system based on the Web, the photovoltaic grid-connected system can be monitored whenever and wherever possible.

An electronic toll collection system (ETCS) for use in a tollgate for charging a car without the need for the car to stop, in which communication failures or errors due to reflected waves from a structure or a passing car are prevented. A roadside communication antenna which communicates with a vehicle-mounted communication antenna for charging, and a car sensor which detects a car (cars) in an area wider than a designed communication area are installed at the tollgate. As an electromagnetic wave path judgment section obtains data on the profile and position of a car which has entered the tollgate, from a car data detector, it calculates electromagnetic wave paths of direct and reflected waves which connect the roadside communication antenna 21 and the vehicle-mounted antenna in each of the cars, and calculates the receiving electric field strength for each of the paths.

The invention provides a data communication method among all independent subsystems in an integrated airborne collision avoidance system. The method comprises the steps that an RAM area for data communication is formed in an FPGA (Field Programmable Gate Array) chip of a signal processing module; if the subsystem A needs to perform data communication with other N subsystems, N data areas in one to one correspondence and N control areas in one to one correspondence for the subsystem A to face the other N subsystems are arranged in the RAM area, otherwise, if the other N subsystems need to perform data communication with the subsystem A, a respective data area and a corresponding control area for each of the other N subsystems to face the subsystem A are arranged in the RAM area; by the designed communication structure and communication protocol, effectiveness and safety of effective data communication among all the independent subsystems are improved.

The invention discloses marine communication node universal equipment capable of being quickly deployed, which mainly comprises a floating body, an information acquisition and communication system, apower supply system and the like. The equipment can be used as a carrier and a communication carrier of a miniaturized marine observation platform. The communication antenna is heightened through themechanical supporting structure, the antenna feeder is led into the floating body through the hollow antenna feeder pipe, and the height of the antenna is increased on the premise that water tightnessis guaranteed. The communication node selects a 433MHz application-free communication frequency band, and a low-power-consumption long-distance communication module is adopted as a communication transmission mode of the communication node, so that the node deployment difficulty and deployment cost are reduced. Meanwhile, a universal data transmission interface is adopted and can be compatible with different measurement sensors, so that the compatibility of the node to different sensors is improved. Meanwhile, the application range of the designed communication node is expanded. And the requirement for low-power-consumption information transmission in a small-scale range is met.

The invention discloses a communication system of a DC grid. The DC grid comprises DC grid control equipment and N sets of converter station control equipment. The communication system comprises n transmission channels, wherein one end of each of the n transmission channels is set at the DC grid control equipment, and the other end is connected with the corresponding converter station control equipment, wherein n <= N; and the transmission channels can adopt optical fibers for transmitting data to be exchanged, the converter station control equipment is only in communication and connection with the DC grid control equipment, and the data to be exchanged among the converter station control equipment is forwarded by means of the DC grid control equipment. The communication system achieves the purposes of reducing communication and bandwidth resource consumption through designing communication between stations, and can be more suitable for the access of other converter stations in the later period. The invention further discloses a communication method of the DC grid.

The invention relates to a multi-device frequency hopping communication method, which adopts a brand new design communication strategy, based on each frequency hopping sequence formed by each communication frequency point applicable between an instruction receiving and transmitting device and a data response device, the instruction receiving and transmitting device firstly detects signals in an environment, so that under the condition that the applied frequency hopping sequence is eliminated, the frequency hopping sequence is detected by the instruction receiving and transmitting device and the data response device; other frequency hopping sequences are selected to be applied by the instruction transmitting and receiving device, and corresponding instruction signals are constructed to realize communication with corresponding data response equipment; in this way, the conflict of frequency points under simultaneous communication among multiple devices can be effectively reduced, communication among the devices is carried out based on the frequency hopping sequence of the unfixed frequency points, and the anti-interference capability of device communication is improved; according to the whole scheme design, the anti-interference capability of the equipment reader-writer on environmental factors such as other reader-writers, communication base stations or multipath recession in the surrounding environment can be improved.

The invention discloses a realization method of a data recorder for an aviation controller. The realization method of the data recorder comprises the step of realizing the data recorder by adopting anengine controller and a memory; an inner network is composed of the controller and the memory through an SPI (Serial Peripheral Interface) communication protocol; key data information of an engine isacquired and identified through the controller, and SPI communication is triggered when recording activation conditions are met; then the key data information is recorded into the memory. The memoryis used as a recording medium, and key data including external signal data, fault information, event information and the like, which is acquired through the engine controller, is recorded in real time; the key data is transmitted into ground auxiliary equipment by designing communication based on a CAN (Controller Area Network) network, so that recording and reading of the key data information ofthe engine are ensured; the analysis efficiency of an operating condition of the engine is improved and the investigation of faults of the engine at an after-sales period is facilitated.

The embodiment of the invention provides a house decoration processing method and device, electronic equipment and a readable medium, and the method comprises the steps: enabling a user to add a corresponding decoration AR model according to the demands of the user in a process of carrying out the image presentation of a target entity space through a terminal in real time in combination with an AR technology, and enabling the user to carry out the image presentation of the target entity space. According to the method, the user can learn about the decoration effect after the relevant decoration model and the entity space are combined, so that the participation degree of the user in the house decoration design process is greatly improved, meanwhile, the user has certain understanding about the decoration design by displaying the three-dimensional room model, and therefore the user can have a certain experience in house design communication with designers. The communication efficiency can be effectively improved, the design cost is reduced, and the design efficiency is improved.