23results about How to "Ensure communication stability" patented technology

The invention discloses an unmanned aerial vehicle airborne access method and system based on a double-link ad hoc network, and belongs to the technical field of communication networks. Carrying out equipment type selection and configuration; network deployment and debugging; unmanned aerial vehicle task execution and data transmission; according to the unmanned aerial vehicle airborne access method and system based on the double-link ad hoc network, a power grid professional unmanned aerial vehicle airborne high-speed ad hoc network access method based on 1.4 G networking access and 5.8 G networking return can significantly improve the communication efficiency, real-time performance and anti-interference capability of an unmanned aerial vehicle cluster; high-speed and stable data transmission between the unmanned aerial vehicle and a ground station or other unmanned aerial vehicles is realized, and the requirements of complex applications such as power grid inspection are met; by combining the advantages of two frequency bands of 1.4 G and 5.8 G, high-speed and stable data transmission is realized, and the efficiency and safety of power grid operation and the communication efficiency are improved; and by using 1.4 G and 5.8 G networking, the traffic fee is 0, and the traffic fee is reduced.

The invention relates to a fault processing method and device for a vehicle braking system, electronic equipment and a medium. The method is applied to a master controller unit of a vehicle braking system and can comprise the steps that state information of a slave controller unit is obtained; under the condition that the state information indicates that the current operation state is not matched with the target state, determining a target fault type of the slave controller unit; under the condition that the target fault type is a functional braking fault type, repairing the fault according to a fault processing mode corresponding to the functional fault type; and when the target fault type is the brake communication fault type, starting the first data transmission line. According to the technical scheme provided by the invention, the reliability and safety of the braking system are improved, the safety of drivers and passengers in the driving process of the vehicle is guaranteed, the fault processing flow is optimized, and the situation that the vehicle directly enters a stagnation state due to the fact that a traditional braking system goes wrong is avoided.

This utility model provides an electrical connection component and a consumable box. The electrical connection component is installed in the mounting unit of a printing device along with the consumable box. The printing device includes at least a stylus assembly and a conductive unit. The stylus assembly includes at least a first stylus and a second stylus. The electrical connection component includes: a chip with multiple terminals, including at least a first terminal and a second terminal; the first stylus for electrical contact with the first terminal; and a connecting component, the first part of which is for electrical contact with the second terminal. By constructing the electrical connection component so that its projection does not overlap with the projection of the second stylus of the stylus assembly in a first direction, and by allowing the second terminal of the chip to make electrical contact with the conductive unit or the first stylus through the connecting component, chip miniaturization is facilitated. Simultaneously, the freedom and flexibility of the terminal arrangement design on the chip are improved, enhancing the chip's adaptability.

The embodiment of the invention provides a method and device for sending a penetrating handshake packet, and the method comprises the steps that an equipment end receives a target connection establishment request from a platform server, and the target connection establishment request carries first smooth round-trip time between a client and first network address translation equipment and second smooth round-trip time between the client and the platform server; the device end receives a time delay acquisition response from the platform server, and the time delay acquisition response carries third smooth round-trip time between the platform server and the second network address translation device; and the device end determines a target moment for sending the penetrating handshake packet to the client according to the first smooth round-trip time, the second smooth round-trip time and the third smooth round-trip time, and sends the penetrating handshake packet to the client at the target moment. According to the method and the device, the problem of NAT penetration failure caused by time sequence difference when the connectivity detection message reaches the opposite-end outlet NAT in the related technology is solved.

The present invention discloses a low-interference filtering device for a radio frequency system, which relates to the field of communication technology, including: establishing a noise signal frequency database of the operating environment of the radio frequency system; determining the operating environment of the current radio frequency system group, recorded as the real-time environment; retrieving corresponding environmental noise signal frequency data from the operating environment noise signal frequency database based on the real-time operating environment; generating the optimal radio frequency system communication frequency based on the radio frequency system environmental noise signal frequency data; obtaining the working state of the radio frequency system in real time, and intelligently calculating the filtering frequency of the radio frequency system based on the working state of the radio frequency system. The advantages of the present invention are: combining the use environment of the radio frequency system and the actual operating state of the radio frequency system to comprehensively analyze and optimize the radio frequency system frequency, which can effectively improve the anti-interference ability of the radio frequency system during communication and ensure the stability of the radio frequency system communication.

The application relates to the technical field of ultrasonic water meters, in particular to an ultrasonic water meter intelligent test system based on 4G communication and a test method, wherein the system comprises a hardware test module, a 4G communication module, a data processing module, a parameter configuration module and a man-machine interface; the hardware test module is used for connecting an ultrasonic water meter to be tested, collecting flow data such as instantaneous flow and cumulative flow of the water meter through a special interface, and simultaneously detecting the working voltage and the environmental temperature of the ultrasonic water meter to be tested; the 4G communication module supports LTE-Cat1 and above communication modes, can establish a stable wireless communication connection, realizes test instruction issuing and test data uploading, and the data processing module comprises a data storage unit, a data analysis unit and a chart generation unit. In the working process of the ultrasonic water meter intelligent test system based on 4G communication, the problems of low test efficiency, incomplete data recording and communication performance test loss in the prior art are solved.

This utility model belongs to the field of building intelligence technology and discloses a modular building gateway device supporting multi-protocol intelligent conversion. The device includes a core board module, an RS485 interface module, an Ethernet interface module, a USB interface module, and a power supply module. The RS485 interface module, Ethernet interface module, USB interface module, and power supply module are connected to the core board module. This utility model solves the technical bottlenecks of existing building gateways in terms of multi-protocol compatibility, configuration efficiency, and real-time performance. It breaks through protocol barriers and eliminates protocol obstacles for interconnecting heterogeneous devices; improves configuration and maintenance efficiency; adopts a multi-level isolation design to ensure communication stability in complex electromagnetic environments; and controls the conversion latency to within 50ms through hardware-accelerated protocol conversion, meeting real-time control requirements.

This invention relates to an ultra-low dielectric and high thermal conductivity composite material based on fluorine-fluorine self-assembly, its preparation method, and its applications, belonging to the field of polymer materials technology. This invention utilizes a perfluorinated solvent for directional cryogenic casting, combined with supercritical carbon dioxide drying technology, to construct a purely anhydrous 3D-FG bidirectional oriented framework in situ; simultaneously, a fluorocyanate resin impregnation solution is prepared; using a vacuum-pressure alternating process, the fluorinated resin is induced to perfectly wet the highly inert FG framework surface and then subjected to solvent-free in-situ thermal curing, resulting in a perfluorinated interpenetrating network structure composite material. This invention overcomes the shortcomings of traditional materials, such as high high-frequency polarization, easy interface debonding, and water absorption blinding under high humidity environments. It achieves a Z-axis thermal conductivity of 1.85~5.80 W / (m·K), a dielectric loss ≤0.0022 at 77 GHz, and possesses extremely low water absorption and strong hydrophobic surface properties, making it particularly suitable for autonomous driving 77GHz millimeter-wave radar, high-orbit satellite communication, and wave-transmitting thermal management in high-humidity marine environments.

A foamed electric wire (10) includes: a conductor (12); and a coating layer that covers the conductor and is composed of one or more layers. At least one of the coating layers is a foamed coating layer (14) made of a resin composition containing a polypropylene resin, the foamed coating layer being formed by foam extrusion molding. The average bubble diameter of the foamed coating layer (14) is 30 [mu] m or less in the cross-sectional direction and 60 [mu] m or less in the longitudinal direction. The foaming rate of the foamed coating layer (14) is 25% or more and 55% or less. The arithmetic average height of the surface of the foamed electric wire (10) is 20 [mu] m or less.

The invention discloses an interference processing method, a storage medium, an interference processing device and a vehicle. The interference processing method comprises the following steps: extracting interference characteristic data of a communication interference event in a plurality of interference dimensions from communication state data of a vehicle cabin; performing time alignment processing on the interference characteristic data under the plurality of interference dimensions to obtain multi-source characteristic data of the communication interference event; inputting the multi-source feature data into an interference analysis model to enable the interference analysis model to output interference attributes of the communication interference event; and performing a communication interference suppression operation on the vehicle cabin according to the interference attribute of the communication interference event. According to the invention, the time alignment processing is carried out on the interference characteristic data under the plurality of interference dimensions, so that the accurate synchronization of the multi-source interference data on the time axis is ensured, the interference analysis model can receive the interference characteristic data which are highly consistent in time and are from different sources, and the accurate identification and effective suppression of communication interference are ensured.

The application discloses a power supply communication method and device based on power carrier communication, and relates to the technical field of power supply communication; the prior art has problems of signal attenuation, insufficient anti-interference ability, insufficient stability of power supply communication and insufficient intelligent path switching ability; the application adopts high sampling rate PSD analysis, STFT and LSTM to predict noise power time sequence data, and establishes a noise-load rate coupling model; secondly, based on the transmission line theory, the channel time variation is researched, the signal reflection and multipath effect are calculated, and the channel coherence time is calculated through the sliding window; for signal attenuation, low, medium and high frequency band models are respectively established, the path attenuation is calculated, and the channel capacity is optimized; finally, through real-time stability analysis, the short-term and long-term SNR stability is calculated, the path selection is optimized in combination with the load rate, and the communication quality is ensured; through comprehensive channel modeling, time variation analysis and path optimization, the reliability and stability of the power carrier communication are improved.

The invention discloses an automobile acousto-optic touch integrated controller hardware device, which relates to the technical field of an integrated hardware controller of an intelligent cabin system, and comprises an MCU (Microprogrammed Control Unit), the MCU is connected with the control signal input end of each functional module through a special control pin to realize accurate control instruction sending and state monitoring signal receiving of different functional modules, and the MCU is connected with the control signal input end of each functional module through a special control pin; the working time sequence and data interaction among the modules can be efficiently coordinated; the atmosphere lamp adjusting module is electrically connected with a corresponding port on the MCU, and the atmosphere lamp adjusting module supports three communication control modes of a CAN (Controller Area Network), an LIN (Local Interconnect Network) and a UART-CAN; core hardware circuits required by headrest sound drive, seat massage control and vehicle atmosphere light adjustment are highly integrated, visual, auditory and tactile control in the vehicle driving process is covered, and compared with a traditional distributed controller, a large amount of circuit board space occupation and connecting wiring harnesses are reduced, and the cost is reduced. And the hardware cost and the wiring complexity of the whole vehicle are reduced.

The invention provides a communication method and device of vehicle-mounted equipment, electronic equipment and a computer storage medium, in the method, the vehicle-mounted equipment can dynamically select and seamlessly switch two communication modes of MQTT and short messages according to network parameters and sensor data, so that the vehicle-mounted equipment can stably communicate in various network environments, and the communication efficiency of the vehicle-mounted equipment is improved. The MQTT mode has the characteristics of low bandwidth consumption and strong real-time performance, greatly reduces the communication cost, has the emergency communication capability, and can ensure the timely transmission of emergency information when an emergency event occurs.

The invention discloses an Internet of Things gateway communication method and device, a gateway, a communication system and a storage medium. A main communication link and a standby communication link are arranged between the Internet of Things gateway and the digital base, the main communication link adopts a first communication protocol, the standby communication link adopts a second communication protocol, and the anti-interference capability of the second communication protocol is higher than that of the first communication protocol. The Internet of Things gateway comprises a first communication interface corresponding to a main communication link and a second communication interface corresponding to a standby communication link. The method comprises the following steps: acquiring at least one communication index of the Internet of Things gateway under the main communication link; if any communication index is greater than or equal to the corresponding threshold value, determining that the communication of the main communication link is abnormal; and switching the communication protocol and the communication interface of the Internet of Things gateway by loading and unloading the protocol stack so as to switch to the standby communication link to communicate with the digital base. According to the invention, signal interruption between the Internet of Things gateway and the digital base caused by an electromagnetic interference environment can be avoided, and communication continuity and stability are ensured.

The invention provides an alternating-current power supply parallel operation communication control method, device and equipment and a storage medium, and relates to the technical field of power supplies, and the method comprises the steps: dividing a plurality of single-phase alternating-current power supply modules into a host or a slave through a first control sub-module in combination with configuration parameters; generating a handshake request signal through a second control sub-module of the host, and sending a handshake request to the second control sub-module of any slave connected with the host by using the Type-C parallel operation line; forwarding the handshake request by using a Type-C parallel operation line through a second control sub-module of the slave, and judging whether the host forms a handshake closed loop with all the slaves or not through a second control sub-module of the host; and if yes, performing data communication control through a second control sub-module of the host and a second control sub-module of the slave according to the combination mode and the phase mode of the alternating current power supply parallel operation system. The alternating current power supply parallel operation communication effect is improved through the alternating current power supply parallel operation system.

The utility model provides an engine control module circuit board and a lamination structure thereof, the lamination structure comprises a plurality of circuit boards to be laminated, each circuit board to be laminated comprises N-1 circuit board substrates and N steel plates, the N steel plates and the N-1 circuit board substrates are alternately arranged, each circuit board substrate comprises a hydrocarbon core plate, an FR-4 prepreg and an FR-4 core plate, and the hydrocarbon core plate, the FR-4 prepreg and the FR-4 core plate are alternately arranged. The hydrocarbon core plate is arranged on one surface of the FR-4 prepreg, and the FR-4 core plate is arranged on one surface, deviating from the FR-4 core plate, of the FR-4 prepreg. As the FR-4 core board has better rigidity and better thermal performance, and the hydrocarbon core board has the characteristic of low dielectric loss, can be suitable for a high-frequency environment, and can make up for the defects of the FR-4 core board, when the circuit board is manufactured by adopting a mode of mixing the FR-4 core board and the hydrocarbon core board, the problem of larger signal attenuation in the high-frequency environment can be solved, and the circuit board can be applied to the high-frequency environment. And the signal processing capability and the communication stability of the engine control module are ensured.

The invention provides a communication control method and device, equipment, a communication system, a chip and a medium, and the method comprises the steps: receiving first information which is used for indicating the distribution of the same connection parameters for a first connection and a second connection, and obtaining the connection parameters according to the request parameter information; and establishing a second connection according to the connection parameter. The technical problems of low connection establishment efficiency and influence on communication stability in the prior art are solved.

The invention discloses a full-field-angle multi-user optical wireless communication system and method based on an optical antenna. The system comprises a base station and a user side. The user side comprises user transceivers located at different positions; the base station can perform data exchange with a plurality of user sides at the same time; the base station comprises a base station signal sending module, an omnidirectional LD transmitter module, an omnidirectional field angle optical antenna module, a base station receiver and a base station signal processing module. According to the invention, 360-degree full-field-angle coverage can be realized, and meanwhile, a multi-user wireless optical signal transmission capability and an area orientation estimation function are realized.

A 200 pair data cable structure belongs to data cable technical field. The utility model discloses a subunit, is formed by four pairs of twisted pair wire, a center basic unit is formed by eight subunits, and the structure is that six subunits evenly surround one subunit, a surround basic unit is formed by seven subunits, and the structure is that five subunits evenly surround one subunit, six surround basic units evenly surround one center basic unit, and the outside is covered with an outer sheath. The utility model has better structural stability, and can effectively guarantee the communication stability of all wires.

The invention relates to the technical field of line state monitoring, in particular to an analog voice line intervention state monitoring system and method based on big data, and the system comprises a voice transmission interference analysis module which extracts the display information of a state monitoring display end in real time. And in combination with fluctuation conditions of interaction state information in display information corresponding to different times in historical data, analyzing a time sequence communication fluctuation risk relationship generated by influence of a transmission environment in a line radiation area in the simulated voice line, and a use state risk fluctuation relationship of each connection device in the simulated voice line. According to the invention, real-time feedback of a transmission state monitoring result is realized, the simulation voice transmission line is possibly interfered by the environment or influenced by different time sequence changes, dynamic screening of the simulation voice lines corresponding to different voice transmission time is realized, and a user is assisted in executing a data transmission decision of the simulation voice lines.

The utility model discloses a vehicle GPS terminal, including casing and communication interface, the casing front end is provided with the through hole of being suitable for the communication interface, is provided with the guide rod in the casing, and the spring is covered on the guide rod, the communication interface is connected with the dialing lever, the guide rod passes through this dialing lever, and the dialing lever is opposite with the spring, and the dialing lever is stretched out casing upwards, is provided with the stroke groove at the dialing lever department of casing, is provided with the apron in the sliding slot of setting up in the casing, and the apron can cover the through -hole, is provided with the connecting rod between the apron and communication interface, and one end of this connecting rod can rotatablely connect with communication interface, and the other end of connecting rod can rotatablely connect with apron, is provided with the dialing lever locking mechanism on the casing. The utility model provides technical scheme through the cooperation of guide rod and spring, provides the sustained pre -tightening force for communication interface, ensures that external joint inserts always keep close adhesion after, significantly reduces the interface slack risk caused by vehicle vibration.

This invention belongs to the field of regulation system technology, specifically relating to a multimodal communication scheduling method in assisted driving scenarios. The method includes: constructing a spatial wave dynamics modeling module to predict signal blind spots and multipath interference peak areas within a future time window using wave equations; constructing a digital twin pre-simulation module to simulate communication load and generate a pre-scheduling timetable through a forward-running digital twin; and performing dynamic channel binding and arbitration, whereby physical vehicles actively initiate cross-modal channel binding according to the timetable, and the arbitrator dynamically adjusts the reporting frequency and compression rate of sensor data. This invention ensures zero-interruption transmission of critical commands in blind spots or areas of strong interference, enhancing the robustness and safety of the assisted driving system.

The invention discloses a signal decoding method and device, electronic equipment and a storage medium, the signal decoding method is applied to a state machine, the signal decoding method comprises the following steps: obtaining a to-be-decoded signal, the to-be-decoded signal comprising a plurality of level signals; and determining the current state of the state machine based on the current input level of the to-be-decoded signal, and decoding the to-be-decoded signal based on the current state. The signal decoding method is based on the algorithm of the state machine, the current state is determined according to the current input level, signal decoding is achieved through conversion among different states, the decoding mode is clear in logic, the fault problems such as program jamming are not prone to occurring, occupation of circuit resources is reduced, and meanwhile communication stability is kept.