9results about How to "Flexible communication" patented technology

The invention provides an emergency communication method, a core network, a medium and a system, relates to the technical field of communication, and is used for solving the problems that the existing emergency communication technology is insufficient in the aspects of economy, practicability, coverage range, response time and cost-effectiveness ratio. The method comprises the following steps: acquiring a certain emergency tracking area code (TAC) corresponding to a certain emergency communication service and the type of the certain emergency communication service; pointing a certain emergency communication service to a certain emergency access point name APN / data network name DNN according to the types of a certain emergency TAC and a certain emergency communication service; a certain emergency APN / DNN receives / sends data of a certain emergency communication service through an emergency access gateway, and the data is sent / received by an unmanned aerial vehicle air base station corresponding to a certain emergency TAC through a satellite. According to the invention, flexible communication of emergency communication service data is realized, and an emergency communication solution which is economical, practical, wide in coverage range, short in response time and high in cost-effectiveness ratio is obtained.

The present invention relates to the field of automobile software technology, and specifically provides a vehicle-side service communication configuration method, system, device and storage medium. It includes obtaining vehicle demand information to configure the usage scenarios and functions of vehicle-side services, and building a service-oriented architecture (SOA) service model of vehicle-side services based on this. The SOA service model configures the domain identity (DomainID) value and the topic (Topic) unit parameters based on the data distribution service (DDS) communication protocol. And the DomainID value and the Topic unit parameters are set as communication parameters between functional domains. The code automatic generation module of the vehicle-side code generator generates the communication code of the vehicle-side application corresponding to each functional domain according to the communication parameters. The present invention makes the communication between services more flexible by modeling the vehicle-side function SOA service, DDS becomes a service component, and the service interface communication is configured. On the basis of the DDS standard, a unified message structure is defined and the data transmission under the same topic is achieved through the publish / subscribe communication model.

This invention discloses a joint optimization method and system for task offloading and resource allocation based on SAGIN. It collects task and scheduling information through a SAG-IoT system; utilizes the task data and scheduling information to achieve optimal association between UAVs and IoT devices based on a matching game algorithm, and makes optimal decisions for task offloading to maximize the computational performance of the SAG-IoT system; based on optimal association, optimal task offloading decisions, and maximizing the computational performance of the SAG-IoT system, it constructs an online offloading framework based on deep reinforcement learning, constructing a path from input X(t) to optimal action x. * The low-complexity mapping strategy (t) is based on repeated interactions between different modules and a random environment, iterating and running sequentially to achieve joint optimization of task offloading and resource allocation. This invention achieves optimal computational performance while stabilizing the system queue. In addition to utilizing binary computation offloading, the optimization framework can also be extended to online partial computation offloading strategies consisting of multiple independent subtasks.

The utility model discloses a signal generation card for a function test of a board to be tested, which comprises two groups of waveform generation modules, a group of digital-to-analog conversion modules and two groups of filtering operational amplifier systems, and the input end of each group of waveform generation module is controlled by SPI communication. The output end of each waveform generation module is connected with the input end of a filtering operational amplifier system, and the output end of the filtering operational amplifier system is connected with a detection output end. The output end of the digital-to-analog conversion module is respectively connected with the output end of each group of filtering operational amplifier system; according to the utility model, the I2C and SPI communication protocols are adopted, the flexible communication and switching of the low-frequency and radio-frequency modules are realized, the requirements of generating low-frequency and radio-frequency signals are met, the frequency range is wide, the stability is high, the communication protocol bus performance is strong, the density is high, and the signal synthesis and processing efficiency is improved, so that the design is greatly simplified, the equipment volume is small, and the cost is low. Layout is centralized, unified control is achieved, and resources are saved.

The utility model relates to an integrated circuit bus control system, which is used for controlling multiple paths of integrated circuit buses and comprises a register module, main control devices in one-to-one correspondence with the multiple paths of integrated circuit buses and buffers correspondingly connected with the main control devices and used for caching read-write data. The plurality of main control devices are connected with the register module, and the plurality of main control devices are parallel and are connected with the respective corresponding slave devices; the register module is connected with an output bus of an external main controller and is used for interacting the read-write data and the enable control signal with the external main controller; and each master control device is connected with the register module and is used for determining whether the master control device is enabled or not based on the enabling control signal in the register module, and the enabled master control device interacts with the corresponding slave device with the read-write data stored in the register module. Therefore, one or more integrated circuit buses can be flexibly selected for communication, and the test efficiency is improved.

The invention relates to the field of emergency communication command systems, and discloses an emergency communication command system based on a satellite broadband platform, which comprises a communication module, integrates various communication modes such as Tiantong network and mobile communication network radio communication, and increases communication records. And the command and dispatch module comprises three modules, namely an outburst emergency team, a front headquarters and a general command center. The three modules form a three-level, graded and authority-divided commanding and dispatching system which can be used according to different emergency situations and task requirements. According to the invention, when Internet communication is paralyzed or signals are unstable, the high-power radio transceiver station and the mobile radio transceiver station can be used as standby communication systems. The Internet, the high-power radio transceiver station and the mobile radio transceiver station are used as communication means of the command center and the front headquarters, so that the communication cost can be reduced; the mobile small-sized satellite signal receiving and transmitting end is used as communication connection between the satellite and the individual mobile end, so that the equipment cost of satellite communication can be reduced. A standby antenna of the satellite signal transceiving terminal can be installed on the unmanned aerial vehicle to send out a cloud layer, so that the influence of severe weather on signals is reduced.

The utility model discloses a kind of wide input voltage's isolated super capacitor energy injection system, comprising: DSP signal processing and control circuit, display module, communication and external control input circuit, alternating current input and rectification filter circuit, high frequency phase-shift H bridge inverter circuit, high frequency overcurrent protection and direct-coupled circuit, high frequency isolation resonant open transformer, high frequency bridge rectifier filter circuit, output current detection circuit, output voltage detection circuit, secondary high frequency filter circuit, differential voltage detection circuit;The utility model can be according to the characteristic curve of super super capacitor by communication mode real-time input characteristic data, let charging characteristic more adapt to the characteristic demand of super capacitor, or implant super capacitor charging characteristic curve to local equipment in advance, system automatically tracks characteristic curve.

The utility model discloses a control system. The control system comprises at least two programmable logic controllers, a wireless coupler and at least two servo drivers, the wireless coupler is connected with the at least two programmable logic controllers and the at least two servo drivers, and the at least two programmable logic controllers are connected with the at least two servo drivers in a star networking mode. The control system is connected with the at least two programmable logic controllers and the at least two servo drivers through the wireless couplers, flexible communication between the plurality of programmable logic controllers and the plurality of servo drivers can be realized, and the communication efficiency is effectively improved.

The invention discloses a 5G network interference test method and system based on radio frequency coverage interference. The system comprises legal transmitting equipment, receiving equipment to be tested and radio frequency interference equipment, the radio frequency interference device implements various different types of interference, including but not limited to persistent interference, reactive interference, random / periodic interference, synchronous radio frequency coverage interference, and the like. According to the invention, radio frequency coverage interference, including time-frequency synchronization, interference subframe generation and interference subframe transmission, is realized. The legal transmitting device and the receiving device to be tested for the anti-interference test collect and store performance indexes of the 5G network system in an interference environment, such as a signal-to-noise ratio, a block error rate, a data rate and the like. According to the invention, the limit anti-interference performance of the 5G equipment is evaluated by using the radio frequency coverage interference, the provided interference means has advancement, the targeted interference suffered by the 5G equipment in a real scene can be simulated, and the anti-interference performance of the equipment under the novel radio frequency coverage interference is tested.