147results about How to "Meet communication requirements" patented technology

The invention relates to a method for reducing power consumption based on a dynamic task migrating technology in a multi-GPU (Graphic Processing Unit) system in the technical field of computers, which comprises the following steps of: respectively mounting a GPU utilization ratio monitor on each GPU to obtain an average utilization ratio of each GPU in T time; when the utilization ratio of the i GPU is R1, migrating all tasks on the i GPU on the GPU the utilization ratio of which is R2 and shutting down the GPU; when the utilization ratio of the j GPU is 100 percent, migrating part of tasks on the j GPU on the GPU the utilization ratio of which is R3; when the utilization ratio of all running GPUs exceeds a threshold value R4, and a system is provided with the shutdown GPU, automatically starting a shutdown GPU by the system and allocating a new calculating task to the just started GPU; and continuously repeating the steps till all the GPUs are used for running a program. The invention has the function of monitoring a real-time source utilization ratio and can effectively reduce the power consumption of the GPUs and optimize the communication among the GPUs.

This invention discloses one beehive mobile communication aviation control system, which comprises the following parts: automatic driver device to control aviation as set task control; earth control bench and beehive mobile communication system to set fly task and display aviation status; the said aviator has several planes with each set with automatic driver device to own one SIM card of mobile communication codes; the automatic driver and earth control bench realize double data communication linkage through earth base station and beehive mobile network.

The invention discloses a network access method and system. The method comprises the following steps of: acquiring a preamble identification associated with a cell identification of a cell by user equipment when the user equipment enters the cell or is started in the cell; sending random access preamble information to a network, wherein the preamble identification associated with the cell identification is carried in the random access preamble information; and receiving a random access response returned by the network. By virtue of the method, indexes of random access delay and switching delay can meet the communication requirements on the situation of traffic field.

The invention discloses a method and a device for collecting the data of the equipment of a third party in a distributed control system. The method comprises the following steps of: receiving a call request to the equipment of the third party by an OPC interface, wherein the call request is transmitted by an OPC client and carries the label information of the equipment of the third party; calling drive modules in a plurality of preset drive modules, which correspond to the communication protocols of the equipment of the third party, according to the label information and constructing connection with the equipment of the third party; and collecting the data of the equipment of the third party and carrying out the corresponding processing on the obtained data of the equipment of the third party. By the invention, the connection of the distributed control system and the equipment of the third party applying various communication protocols can be met.

The invention discloses a gateway device base on multi-antenna data information fusion. According to the device, a wireless signal gathering module is in charge of collecting information of a wireless sensor terminal, and fusing collected signals through a data conversion module; and wired Ethernet, CAN bus, or RS485 and other various communication modes are chosen to use according to the actual network deployment at a scene to send the collected data to a remote control terminal, wherein when data transmission is conducted between the wireless signal gathering module and a wireless sensor network node, a multipoint-multipoint communication is realized by selecting the multi-antenna technology and the frequency division multiplexing technology, so as to not only improve the scene information multiplexing efficiency, but also can allow the channel capacity to dynamically exchange channels according to working requirements of each module; the collected data are subjected to conversion and packaging of a data protocol by the data conversion module according to network transmission requirements, and packaged signals are transferred to a remote control terminal by the data conversion module, so as to improve the versatility of the gateway device in an industrial scene.

The invention relates to a reactive power compensation method and a reactive power compensation system for a micro power grid. The system comprises a distributed measuring unit, a reactive power compensation control unit, a reactive power compensation unit and a communication unit. The micro power grid comprises a distributed power supply with reactive regulation output. For the micro power grid operated in an isolated network mode, the overall reactive power balance condition of the micro power grid is obtained by measuring the active and reactive power distribution conditions of each branchcircuit of the micro power grid, and a reactive power compensation device or the reactive power compensation device and the distributed power supply are subjected to reactive regulation in the micro power grid according to a specific isolated network reactive control strategy to realize the reactive power compensation of the micro power grid. The power factor of the micro power grid can be measured and corresponding reactive power compensation is performed according to the power factor when the micro power grid is operated in a grid-connected mode and in the isolated network mode.

The invention relates to a visible light both-way communication system. The system comprises an LED light source device with a visible light both-way communication function, and a visible light communication Internet device, wherein the visible light communication Internet device is capable of connecting with a mobile terminal, and the LED light source device comprises a power source module, a power line carrier module, a first Ethernet speed conversion module, an uploaded signal receiving modulating module, a downloaded emitting modulating module, and an LED light source module; the visible light communication Internet device comprises an uploaded signal emitting modulating, a downloaded signal receiving modulating module, a second Ethernet rate conversion module and an interface circuit. A light signal emitted by the LED light source module is the visible light incapable of generating radiated interference and harming the human body, and the transmission range of the light signal is the irradiation range of the LED light source device, the place out of the irradiation range is free from the light signal, and the irradiation range of the LED light source device is shielded, the privacy and the security of the communication are guaranteed.

The invention discloses a miniature dual polarized antenna suitable for WLAN, which comprises a metal radiation patch, a microstrip feed line, a first dielectric plate, a second dielectric plate and a grounding plate, wherein the metal radiation patch is arranged on the upper surface of the first dielectric plate; the microstrip feed line is arranged between the first dielectric plate and the second dielectric plate, and is etched in the center of two adjacent edges of the upper surface of the second dielectric plate; and the grounding plate is arranged on the lower surface of the second dielectric plate. The miniature dual polarized antenna has the advantages of high gain, wide band, low loss, low cost, compact structure, good radiation performance and the like, and satisfies the requirements of a WLAN communication network at 2.4 GHz frequency band.

The invention discloses a WLAN (Wireless Local Area Network) transmission system, which is characterized by comprising a radio frequency front end module and a first WLAN chip, wherein the radio frequency front end module comprises a power amplifier, a low noise amplifier, a bypass through circuit and a switch unit, wherein the switch unit is respectively connected to the power amplifier, the low noise amplifier and the bypass through circuit, and an input end of the power amplifier is connected to a transmitting end of the first WLAN chip; an output end of the low-noise amplifier is connected to a receiving end of the first WLAN chip; one end of the bypass through circuit is connected to the receiving end of the first WLAN chip; and the switch unit is connected to a control end of the first WLAN chip. The invention also relates to a signal transmission method for a WLAN system, the power of a transmitting signal and the power of a receiving signal can be adjusted to realize the communication requirements for increasing a communication distance and guaranteeing the communication quality.

The invention discloses a next-generation Internet of Things architecture design method and an application system, in particular a multimode heterogeneous wireless network method and system. The multimode heterogeneous wireless network integrates a plurality of communication networks, such as LTE, WiFi and IoT networks, and is configured to be capable of dynamically switching among a plurality ofcommunication networks according to the communication requirements, so that a data transmission unit and a base station communicate through a selected communication network, and the communication requirements of different terminal devices are met at the same time.

The invention discloses a Wi-Fi network connection method and a Wi-Fi device. The Wi-Fi network connection method comprises that a first Wi-Fi device obtains at least one message broadcast by a second Wi-Fi device, wherein each message comprises channel information; the first Wi-Fi device determines target channel information according to the channel information in the at least one message; and the first Wi-Fi device performs Wi-Fi network access or provides hot spot services for a user device according to the target channel information. According to the invention, the first Wi-Fi device determines the target channel information by obtaining the channel information in the message, so according to the target channel information, the first Wi-Fi device is allowed to normally perform Wi-Fi network access or provide hot spot devices.

The invention provides an online dynamic task planning terminal and planning method for medium and low orbit micro satellites. The terminal of the invention adopts an online task planning module of aparallel processing structure, and when the satellite maintains communication with a ground measurement and control station, the communication and coordination among multiple satellites, and dynamic task planning are achieved in combination with a Beidou short message transceiver. The method of the invention adopts the form of an auction contract network, and comprises: processing auction rights,selecting a dominant satellite, and selecting the current auction task. The dominant satellite performs bidding on member satellites for the task. A bidder performs task bidding according to an own state. A tenderee completes bidding evaluation according to a bidding evaluation strategy and selects a contract satellite. Contract establishment, and process monitoring and contract information updateare completed, and the contract is terminated after the task is completed. By adoption of the online dynamic task planning terminal and planning method provided by the invention, the online dynamic task distribution and rational planning of a plurality of medium and low orbit micro satellites can be achieved, the efficiency is relatively high, the planning result is feasible, and it has practicalsignificance for improving the on-orbit autonomy and joint planning capability of the micro satellites.

The invention relates to a combined antenna, in particular to an iridium and GPS (Global Positioning System) combined antenna for an underwater robot. The iridium and GPS combined antenna comprises an antenna adapter component, a fixed base, a connecting pipe and an antenna assembly which are sequentially and hermetically connected, wherein the antenna adapter component comprises a watertight cable, a setting framework, a connector locating ring and a coaxial connector; the setting framework is hermetically connected with the fixed base; one end of the setting framework is provided with the connector locating ring; the coaxial connector is inserted into the connector locating ring, and one end of the coaxial connector is connected with the watertight cable; the watertight cable is hermetically connected with the setting framework; the antenna assembly comprises an antenna housing fixing piece, an iridium antenna, a GPS antenna and an antenna housing; one end of the antenna housing fixing piece is in hermetical and threaded connection with the connecting pipe, and the other end of the antenna housing fixing piece is hermetically connected with the antenna housing; the iridium antenna and the GPS antenna are both encapsulated in the antenna housing and are respectively connected with the other end of the coaxial connector by virtue of a coaxial signal wire. The iridium and GPS combined antenna has the advantages of simple structure, good underwater sealing property and antenna signals, easiness for installation and the like.

The invention discloses a switching trigger method, a base station and a terminal. A source base station transmits a measurement control command to a vehicle-mounted terminal, wherein the measurement control command carries an A3' event, and the A3' event expresses that the service cell quality is better than the neighboring cell quality; and before the vehicle-mounted terminal reports a measurement report, if the service cell quality is better than the neighboring cell quality, the source base station receives the A3' event reported by the vehicle-mounted terminal, and sends a switching request command to a target base station according to the A3' event. Through the technical scheme of the invention, the switching time delay index meets the communication requirements of traffic field scenes.

The invention discloses a multimode resonant antenna system comprising an antenna and a PCB (Printed Circuit Board), wherein the antenna is arranged above the PCB; a projection area of the antenna on the PCB is a metal area; the antenna further comprises an antenna main body, a feed terminal and a ground terminal; the antenna is connected with the PCB through the ground terminal; the antenna body further comprises a first part, a second part and a third part; the first part is connected with the third part through the second part; the first part is connected with the feed terminal and the third part is connected with the ground terminal; at least one of the first part, the second part and the third part is composed of a plurality of radiation units with different widths/lengths; and the distance between the ground terminal and the feed terminal ranges from 10 mm to 40 mm. Compared with the prior art, the invention provides the multimode resonant antenna system which can solve the problems that the design of the antenna in the prior art cannot meet the requirement of reserving a clearance area for the antenna in the PCB of an intelligent mobile phone.

The invention discloses an intelligent control method for strong oil air cooling of a transformer, which comprises the following steps: step a: the program starts, initializes, and then turns into a main program for circulating operation; B, sample and processing that upper oil temperature of the transform; C, judge that sampling temperature in the step b; Step d: if the oil temperature judged instep c is greater than the upper limit temperature, the fan automatically switches on and off subroutine 1; If the oil temperature judged in the step c is less than the upper limit temperature, the fan automatically switches on and off the subroutine 2; E, sending that temperature signal and the running program to a liquid crystal screen for display; (f) send that upper oil temperature of the current transformer and the operation condition of the fan to the upper compute through a remote communication program; Step g: End the current program and return to step b. The invention has the advantages that the problems that the prior art is not conducive to energy saving and effective utilization of equipment, and the air cooling device is frequently switched on and off are solved.

The embodiment of the invention discloses a single card terminal and a network reselection method. The terminal comprises a 2G processing module and a 3G processing module, wherein the 2G processing module is used for residing a circuit switched (CS) domain in a 2G network preferentially and executing CS domain services; the 3G processing module is used for residing a packet switched (PS) domain in a 3G network preferentially and executing PS domain services; the 3G processing module is also used for detecting 3G network signal intensity; and when the 3G processing module detects that the 3G network signal intensity is not higher than a first threshold and lasts for a first time, the 2G processing module is also used for judging whether the 2G network accords with the PS domain residence condition, if so, the PS domain is resided in the 2G network, and the PS domain services are executed in the 2G network. According to the embodiment of the invention, the PS domain and the CS domain can be resided in different modules respectively, and CS domain services and the PS domain services are given consideration; meanwhile, the network reselection process is accelerated, and the user experience is improved.

The invention provides a method and a device for uplink data transmission control. The method comprises steps: a base station allocates sharing resources for transmitting uplink data for at least two terminals in a cell; and the base station configures the at least two terminals to perform automatic transmission on the sharing resources.

The invention provides a block diagonalization technology-based cooperative transmission optimizing scheme, which is applied to a multiple-input multiple-output (MIMO) multi-cell downlink system and can increase the frequency spectrum utilization rate of the system. The basic thought of cooperative transmission is that: a base station determines a scheme for preprocessing each piece of user data information before transmission in combination with a block diagonalization technology according to the channel information of each user; and then optimal power allocation is performed on the user data information by adopting a principle of optimality according to the channel state information of the user and the preprocessing scheme thereof. Compared with the other cooperative transmission schemes adopting the block diagonalization technology, the scheme provided by the invention is a compromise choice for frequency spectrum efficiency and realization complexity.

The invention discloses a cycle address type three-line SPI communication system, and belongs to the technical field of industrial control. The system herein includes a master control device and a plurality of external devices. The master control device has a CPU. The external devices are data acquiring devices or digital/analog output devices. The master control device and the external devices are provided with standard SPI interfaces. The master control device is connected to respective external devices through a three-line SPI control system by using a clock line SCLK, a data input line MDIand a data output line MDO that have SPI interfaces. The length of each communication is transmitted to the three-line SPI control system prior to the transmission of communication data, while the address information of peripheral chip selection can not be transmitted. According to the invention, the system herein uses "from head cycle chip selection" to select periphery of communication. The entire communication bus simply needs a clock line, and two data lines. The system allows communication with peripherals that have SPI protocols simply by using the three lines, has no special requirements for peripherals that have SPI protocols, and has excellent compatibility.

The invention discloses a demonstrator key reaction sensitivity optimization method which includes the steps that an array type keyboard is adopted as a demonstrator keyboard in a demonstrator system, an independent keyboard scanning management chip is selected to reduce keyboard refresh frequency, an I2C bus mode is adopted in the keyboard scanning management chip, and meanwhile, in order to quickly respond to key pressing events in time and automatically eliminate jitters, an interrupt mode is selected to serve as a work mode of the keyboard; a central processor in the demonstrator system is responsible for coordination and management between modules of the system and detection of external interrupt and interrupt processing, and finishes communication tasks with a controller, a CAN bus structure with high anti-interference performance is adopted between the modules, multi-node efficient control is achieved by means of rich message structures, and multi-point real-time communication is achieved through programs in the system. The method is easy, convenient and quick to operate, movement of robots is flexible and accurate, and timeliness is high.

The embodiment of the invention discloses a communication terminal for a high dynamic carrier. The communication terminal comprises an antenna module, a short message baseband processing module, a short message power amplifier module and a short message radio frequency receiving module. The communication terminal is equipped with a forward and backward signal processing process. The forward signal processing process comprises the step that after a signal of a GEO satellite is received by the antenna module, the signal is processed by the short message radio frequency receiving module and the short message baseband processing module in sequence and then is transmitted to an airborne computer of the high dynamic carrier. The backward signal processing process comprises the step that telemetering data is received by the airborne computer of the high dynamic carrier, the telemetering data is processed by the short message baseband processing module and the short message power amplifier module in sequence and then is sent to the GEO satellite through the antenna module. According to the communication terminal, reliable communication of the high dynamic carrier can be realized.

The application discloses a direction-communication terminal timed synchronization method and apparatus. Each monitoring terminal updates a corresponding timing parameter and precision weight value thereof through monitoring surrounding master terminals and using channel sending timing parameters and timing precision weight values of the master terminals monitored. Through the adoption of the method and apparatus of the invention, timed synchronization of a direction-communication terminal can be realized without base station signal coverage in a terminal off-network direction-communication scene. The method and apparatus of the invention are applicable to the off-network direction-communication scene.

The invention discloses a power ubiquitous intelligent cloud architecture, comprising: a grid intelligent terminal, a ubiquitous communication network and a grid control system; Wherein information istransmitted between the grid intelligent terminal and the grid control system using the ubiquitous communication network. In this invention, the ubiquitous communication network connects the intelligent terminal of the power grid with the control system of the power grid, so that the power grid control system can collect the real-time information of production and operation, the control commandscan be also sent to the intelligent terminal of the power grid quickly and directionally. Therefore, the electric power ubiquitous intelligent cloud structure in the invention is different from the centralized communication and information processing mode based on the star-shaped or tree-shaped topology of the traditional electric power communication network, and can meet the service communicationrequirements in many aspects such as communication real-time, reliability, processing timeliness and the like.