12results about How to "Ensure communication stability" patented technology

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.

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 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.

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 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.