43results about How to "Improve anti-electromagnetic interference performance" patented technology

The utility model provides a toxic gas detector control circuit capable of resisting electromagnetic interference, which comprises a power supply voltage regulation circuit, a temperature signal acquisition circuit, a sensor voltage regulation circuit, a sensor acquisition control circuit and a gas detector main control circuit which are in power supply connection. The gas detector main control circuit is in control connection with the 485 communication circuit, the acousto-optic prompt circuit, the LED state display circuit and the digital display screen, the gas detector main control circuit is in communication connection with the sensor acquisition control circuit, and the sensor acquisition control circuit is in control connection with the gas signal acquisition circuit and the temperature signal acquisition circuit. A TVS (Transient Voltage Suppressor) tube, a common mode inductor and a diode are arranged in the power supply voltage adjusting circuit; and a TVS tube and a diode are also arranged in the gas detector main control circuit. The poisonous gas detector has the beneficial effects that the anti-electromagnetic interference capability, the reliability and the stability of the poisonous gas detector when the poisonous gas detector is independently used are greatly improved.

This invention discloses a differential VGA signal decoding and display device, relating to the display field. It includes a signal input module, an ESD protection module, a differential receiving module, a synchronization separation module, an image decoding driver module, a display module, an audio processing module, and a control module. These modules are interconnected and work together to decode, process, and display differential VGA signals. This differential VGA signal decoding and display device solves the problems of short transmission distance, weak anti-interference capability, limited resolution, and high power consumption associated with traditional VGA interfaces. It also achieves full compatibility with traditional VGA devices, integrating audio processing, local playback, intelligent signal enhancement, and remote monitoring and management functions. It achieves reliable conversion from analog to differential signals, supports high-definition display, and has a transmission distance of up to 50 meters, while maintaining full compatibility with traditional VGA devices. This technology is particularly suitable for professional fields such as industrial automation and medical imaging, meeting the diverse display and intelligent operation and maintenance needs of professional scenarios.

The application discloses a kind of live detection devices of pole-mounted transformer internal insulation defects, including acquisition terminal, telescopic insulating rod, intelligent analysis terminal;The first side of acquisition terminal is provided with acoustic sensor and is used to adsorb to the surface of pole-mounted transformer adsorption component, and acoustic sensor is used to collect voiceprint partial discharge signal;The top of insulating rod is provided with connecting component for disassembling acquisition terminal;Intelligent analysis terminal is connected with acquisition terminal, for whether there is insulation defect in pole-mounted transformer according to voiceprint partial discharge signal analysis inside.The above-mentioned live detection device of pole-mounted transformer internal insulation defect can quickly and conveniently contact live detection to pole-mounted transformer, avoid the interface effect of box and air and air absorption attenuation, improve the anti-electromagnetic interference ability, accurately determine the internal insulation fault of transformer, improve detection sensitivity and accuracy, eliminate security risks as soon as possible, avoid transformer explosion.

The utility model belongs to the field of comprehensive detector, specifically is four in one comprehensive detector of distribution network patrol, the lower part of patrol instrument casing is provided with handheld handle, the front side of the casing of patrol instrument is provided with display screen, the left side of patrol instrument is provided with external ultrasonic sensor module, the back of patrol instrument is provided with infrared detector module, the top of patrol instrument is provided with air ultrasonic sensor module, the upper portion of patrol instrument is provided with fitting assembly, acoustic detection module is clamped and is connected with fitting assembly, and the utility model discloses an open type working environment adopts acoustic detection module detection, and closed type working environment adopts air ultrasonic sensor module detection, and the local discharge area will show as high energy bright spot or macule on the image, thereby realizes the intuitive positioning and identification of local discharge position, can judge whether the equipment inside exists local discharge and the severity of discharge through the analysis ultrasonic signal amplitude, frequency, phase and so on, and the advantage of air type ultrasonic detection is that the anti-electromagnetic interference ability is strong, is applicable to the environment of high pressure, strong magnetic field.

The invention provides a bidirectional photoelectric measurement cooperative positioning method, which is used for realizing high-precision and low-delay cooperative positioning through bidirectional photoelectric distance measurement and direction finding and data link synchronization between an unmanned ship and a patrolling flight device when the navigation equipment of the patrolling flight device has short-time faults (such as electromagnetic interference, shielding and high maneuvering states). The unmanned surface vehicle and the patrolling flying devices measure the other one by using self photoelectric equipment respectively, and position estimation values of the two patrolling flying devices are independently calculated respectively based on the high-precision position of the unmanned surface vehicle; the collaborative weight coefficient is calculated according to the measurement error of the photoelectric equipment of the two parties, weighted average fusion is carried out at the patrolling device end, the optimized positioning result is directly output, and the delay error caused by back-and-forth transmission of a data chain is effectively avoided. And reliable positioning information can be obtained by the patrolling device in a complex electromagnetic environment and a maneuvering condition. The method is suitable for a cooperative scene of the unmanned surface vehicle and the patrol aircraft, and has the advantages of good real-time performance, strong anti-interference performance, low cost and the like.

The invention relates to the technical field of gas sensing, and discloses a cavity enhanced spectral absorption gas detection system and method based on AR-HCF, and the system comprises a light source part, a transmission part, a gas chamber part, a signal detection part and a demodulation part; the air chamber part is a mode interferometer, the mode interferometer is composed of a single-mode fiber (SMF), a gradient refractive index multimode fiber (GIF) and an anti-resonance hollow-core fiber (AR-HCF), the gradient refractive index multimode fiber is welded to the output end of the single-mode fiber, the anti-resonance hollow-core fiber is welded to the output end of the gradient refractive index multimode fiber, and the gradient refractive index multimode fiber and the anti-resonance hollow-core fiber are welded to the output end of the gradient refractive index multimode fiber. According to the AR-HCF-based cavity enhanced spectral absorption gas detection system, the gas sensing unit is of an all-fiber structure, so that the AR-HCF-based cavity enhanced spectral absorption gas detection system is small in size, high in electromagnetic interference resistance, low in cost and convenient to integrate.

This utility model discloses a residual voltage detection module and device for distribution network lines, relating to the field of residual voltage detection technology. It solves the technical problem of urgently needing a residual voltage detection circuit capable of quickly and reliably identifying residual voltage in distribution network lines and adapting to different power grid environments. The module includes, in sequence, an input control circuit, a residual voltage judgment circuit, a residual voltage blocking circuit, an isolation output circuit, and a residual voltage reset circuit. The input terminal of the input control circuit is connected to the first and second power supply circuits of the distribution terminal. The input control circuit controls the start or stop of the residual voltage detection module. The residual voltage judgment circuit detects the presence of a residual voltage signal in the distribution terminal. The residual voltage blocking circuit blocks the residual voltage signal. The isolation output circuit isolates and outputs the blocked residual voltage signal to the residual voltage reset circuit. The module provided by this utility model has high reliability, fast response speed, and can effectively adapt to complex and changing operating environments.

The utility model relates to the technical field of display lamp panels, and discloses a digital display lamp panel which comprises a lamp panel body, a display mechanism is arranged at the front end of the lamp panel body, the lamp panel body comprises a lamp panel body, and mounting holes are formed between the front side wall and the rear side wall of the four corners of the lamp panel body. Four threaded holes are formed in one side of the front end of the lamp panel body in a rectangular array shape, and a contact type socket is arranged at the front end of the lamp panel body and located among the four threaded holes. Effective electromagnetic shielding measures are adopted, namely, the anti-interference display driving board is arranged at the rear end of the lamp panel, and the metal shielding cover is arranged outside the display driving board and the data transmission mainboard, so that the lamp panel is isolated from an external electromagnetic interference source, meanwhile, the circuit layout of the lamp panel is optimized, internal electromagnetic interference is reduced, and the service life of the lamp panel is prolonged. And anti-interference elements, namely a filter capacitor and a filter inductor, are added in the driving circuit, so that the anti-electromagnetic interference capability of the lamp panel is improved.

This invention relates to a method for modeling the capillary evolution of humidity-related adhesion forces under micrometer-scale probes. This method establishes a physical relationship between ambient relative humidity and Kelvin radius, and calculates the Kelvin radius in conjunction with the initial volume of the liquid bridge, thereby constructing a parameterized model of capillary forces that characterizes the change in liquid bridge volume with ambient humidity. The influence of the liquid film on the solid surface is considered during model construction, enabling the model to more realistically reflect the formation and evolution of liquid bridges in actual micro / nano interfaces. As the two surfaces gradually move away, the relationship between the curvature of the liquid bridge interface and the Kelvin radius is established under the condition that the liquid bridge volume remains constant, thus achieving a continuous description of the evolution of capillary and adhesion forces during the separation process between the micrometer-scale probe and the sample interface. Furthermore, experimental measurements and model verification of micrometer-scale interface forces are conducted using a self-developed fiber Bragg grating probe.

This utility model relates to the field of current transformer technology and discloses a shielded electronic current transformer that solves the problem of poor shielding effect in existing electronic current transformers. It includes a shielded induction coil housing, an insulator, and a shielded electronic device mounting housing. The induction coil is installed inside the shielded induction coil housing. A busbar is installed through the center of the shielded induction coil housing, passing through the center of the induction coil. A grounding wire is installed at one end of the bottom of the shielded induction coil housing. A breakdown-resistant component is installed at the top of the shielded electronic device mounting housing. Both the shielded induction coil housing and the shielded electronic device mounting housing are composed of an aluminum alloy layer, an aluminum oxide insulating outer layer, a carbon nanofiber layer, an aluminum foil layer, a copper mesh layer, a nanocrystalline absorbing layer, and an epoxy resin curing layer. This electronic current transformer improves shielding performance.

The invention relates to the technical field of circuit board processing, in particular to a pneumatic vibration main shaft for circuit board processing and a circuit board drilling method. The main shaft comprises a main shaft shell, a floating rotating shaft and a pneumatic vibration assembly. The pneumatic vibration assembly is provided with a first air pressure cavity and a second air pressure cavity which are oppositely arranged in the axial direction of the floating rotating shaft, and a first air path and a second air path which are communicated with the two cavities and can independently control air pressure. By controlling the air pressure of the two air paths, a controlled air pressure difference is formed between the two cavities, so that the floating rotating shaft is driven to generate axial reciprocating vibration. Axial micro-vibration of the drill point is achieved through the pure pneumatic principle, chip removal in the drilling process is effectively promoted, the hole wall quality and the drilling precision are improved, and the system is simple in structure and high in anti-interference capacity.

This utility model discloses a highly flexible, tensile-resistant shielded power cable, comprising a conductor layer, a fastening layer, an insulation layer, a shielding layer, and a sheath layer arranged coaxially from the inside out. The fastening layer is a heat-shrinkable braided tubing, which, after heat shrinking, forms a tight, compressed fit with the outer surface of the conductor layer, significantly improving the cable's tensile strength. The shielding layer is a heat-shrinkable tube with a metal wire braided mesh layer. Before heat shrinking, its original inner diameter D1 and the outer diameter D2 of the insulation layer satisfy 1.1 ≤ D1 / D2 ≤ 1.2; after heat shrinking, its final inner diameter D1' and D2 satisfy 1.02 ≤ D1' / D2 ≤ 1.08, ensuring a tight electromagnetic shielding contact between the shielding layer and the outer surface of the insulation layer. This utility model, through its unique interlayer heat-shrinkable fastening and shielding structure, achieves a balance between excellent flexibility, small diameter, high tensile strength, and stable shielding, making it particularly suitable for scenarios requiring frequent bending and small-area wiring, such as stage equipment and automotive wiring harnesses.

This utility model discloses a frequency converter enclosure assembly with an anti-electromagnetic interference shielding layer, belonging to the technical field of frequency converter enclosure assemblies. It includes an enclosure and a hinged door on the front of the enclosure. The door is equipped with a sealing component. Openings are provided at the lower ends of both sides of the enclosure, and dustproof components are installed inside the openings. Cooling fans are installed on both sides of the enclosure above the openings. A metal shielding frame is installed inside the enclosure. This utility model can achieve efficient heat dissipation while ensuring the airtightness and anti-electromagnetic interference performance of the frequency converter enclosure. The concave design increases the flow path and improves heat exchange efficiency. Simultaneously, airflow through the top of the metal shielding frame and the gaps in the heat-conducting plate carries away heat. This dual-path rapid heat dissipation prevents heat accumulation and eliminates the need for numerous ventilation holes. It maintains the enclosure's airtightness to prevent impurities from entering while ensuring anti-electromagnetic interference effectiveness, thus ensuring stable operation of the frequency converter.

The invention belongs to the technical field of electronic digital equipment, and relates to a low-leakage reinforcing all-in-one machine. The low-leakage reinforced all-in-one machine comprises a front panel assembly and a rear shell assembly, the front panel assembly comprises a front panel and a binding touch liquid crystal screen module arranged in the front panel, a fingerprint module is further arranged on the front panel, and the rear shell assembly comprises a rear shell in butt joint with the front panel. A conductive rubber strip is arranged at the connecting position of the front panel and the rear shell, a shielding cavity is formed in the machine shell, a conductive rubber strip is arranged at the connecting position of the rear cover plate and the rear shell, an independent electromagnetic shielding cavity is formed in the back of the rear cover plate, and the binding touch liquid crystal screen module, the external interface board and the fingerprint module are installed in the front panel assembly. The main board, the power supply battery, the heat dissipation assembly, the filtering assembly, the touch panel and the like are arranged in the rear shell assembly, main electron radiation components are all provided with independent shielding cavities for electromagnetic shielding, the good anti-electromagnetic interference capacity and the good information leakage prevention capacity are achieved, and the vehicle-mounted electronic device can be used in the military vehicle-mounted special environment.

The utility model relates to a cable, in particular to a high-power low-loss radio frequency cable for a chariot radar. The utility model aims to provide the high-power low-loss radio frequency cable for the chariot radar, and the cable has the functions of low attenuation, high power and external electromagnetic interference resistance, and has the characteristics of light weight and high flexibility. According to the technical scheme, the high-power low-loss radio frequency cable for the chariot radar is characterized by comprising a cable core, an inner shielding layer, a middle layer, an outer shielding layer and an outer protection layer, the cable core comprises a conductor, and a first insulating layer, a second insulating layer and a third insulating layer which sequentially wrap the conductor from inside to outside.

The application belongs to the technical field of vehicle communication, and discloses a multi-bus self-organizing network device with a three-CPU architecture, which comprises a motherboard, a first bus board, a second bus board and a third bus board; the motherboard is connected with an external power supply, and the first bus board, the second bus board and the third bus board are all connected with the motherboard. The three bus boards can realize the starting of a FlexRay bus network, and can communicate with an upper computer through the CAN bus of the bus board; a CAN bus interface and two FlexRay bus interfaces are integrated in a small space, the interaction mode of the two buses is perfect, the communication rate is high, the protection level is high, and the anti-electromagnetic interference is high; the FlexRay bus can be connected with multiple bus nodes, and can communicate with the upper computer through the CAN bus, so that the FlexRay bus communication condition can be monitored in real time and fault positioning can be performed, and the use requirements of military armored vehicles on multiple bus communication, multiple bus information interaction, complex environment and strong anti-interference are met.

The utility model discloses a kind of inertial navigation system for coal mining machine, optical fiber inertial navigation equipment is mounted on coal mining machine, the signal of optical fiber inertial navigation equipment is wirelessly transmitted to wireless coverage unit through CPE antenna on body, wireless coverage unit is connected with switch, the data of wireless coverage unit is forwarded, exchanges, central control host computer is connected with switch, receives the data forwarded from switch;Coal mining machine is connected with switch or central control host computer through communication line.The utility model system is high in integration, realizes multi-source data real-time integration, equipment collaborative management and control, greatly improves working face automation efficiency.

This application relates to the technical field of thyristor drive circuits, and in particular to a Schmitt trigger circuit for a thyristor magnetization system. It includes an isolated power supply unit, an energy storage unit, a trigger pulse receiving unit, and a Schmitt strong pulse forming unit. The isolated power supply unit includes an isolation transformer and a filter capacitor. The energy storage unit consists of a charging resistor and an energy storage capacitor connected in series. The trigger pulse receiving unit receives external trigger commands. The Schmitt strong pulse forming unit includes an NPN transistor, a MOSFET switch, etc. These units cooperate with each other. The application also covers parameter limitations and electrical isolation settings for each component. This circuit can be applied to high-power, high-voltage, strong magnetic pulse magnetization equipment. This application achieves electrical isolation and equivalent Schmitt trigger characteristics, providing nanosecond-level steep-front strong trigger pulses to the thyristor, thereby reducing turn-on losses, improving di / dt tolerance, and enhancing electromagnetic interference immunity.

The utility model relates to the field of automobile sensor, concretely relates to a built -in sensor of automobile tail door electric support rod, including code disc, fixed connection is in the motor shaft of electric cylinder or the input shaft of speed reducer and rotates with it, photoelectric sensor contains light emitting element and light receiving element, the code disc includes the bottom plate and the even number of protrusions established on the bottom plate, the protrusions are uniformly distributed on the same circumference, and form the code way between the four protrusions of adjacent two diameter directions, the moving path of protrusion is located between light emitting element and light receiving element, generates pulse signal through the obstruction / transmission light path, in the application scene such as electric tail door requiring low -speed smooth operation and high -precision position control, can guarantee control precision and stability.

The utility model relates to a composite radio frequency coaxial cable. The cable comprises an inner conductor which is of a spiral tubular structure; the optical fiber is embedded in the inner conductor, and an optical fiber filling ointment is filled between the optical fiber and the inner conductor; the insulating layer is arranged on the outer side of the inner conductor; the shielding layer is arranged on the outer side of the insulating layer; and the sheath layer is arranged on the outer side of the shielding layer. According to the utility model, the optical cable and the radio frequency coaxial cable are of an integrated structure, optical waves and radio frequency signals can be transmitted simultaneously, the advantages of the radio frequency coaxial cable structure and the optical cable transmission performance are combined, and the problems of easy damage, signal interference, low construction efficiency, poor compatibility with the existing system and the like of the optical cable in the prior art are solved; efficient and stable transmission of light wave and radio frequency signals is achieved, and meanwhile construction cost and difficulty are reduced.

The utility model relates to the technical field of cable protection shells, and particularly discloses an anti-electromagnetic interference shell for a cable, which comprises a first shell and a second shell, mounting plates are fixedly arranged on the inner side walls of the first shell and the second shell, the mounting plates are connected with a fixing frame through elastic assemblies, a cable body is arranged in the fixing frame, and the cable body is fixedly connected with the first shell and the second shell. A protection mechanism is arranged in the fixing frame, and a connecting assembly is arranged between the first shell and the second shell. According to the utility model, the protection mechanism is arranged and used, and the conductive shielding layer is arranged in the fixing frame, so that the anti-electromagnetic interference effect of the first shell and the second shell on the cable body is improved; and the first shell and the second shell can be conveniently mounted and dismounted with the cable body, so that the first shell and the second shell are suitable for cable bodies of different specifications, the applicability of the device is improved, and the device is convenient to use.

The utility model discloses a kind of high-temperature-resistant composite cable, including cable body, the cable body includes rubber strip, the outside of the rubber strip is evenly provided with multiple core wires, adjacent the core wire between is provided with partition, the core wire, partition and rubber strip are wrapped by first wrapping layer, the outside of the first wrapping layer is coated with shielding layer, the outside of the shielding layer is evenly provided with multiple buffer strips, multiple the buffer strip is coated outside shielding layer by second wrapping layer, the outside of the second wrapping layer is coated with sheath.The utility model, rubber strip improves the tensile property of cable, the outside of rubber strip is evenly provided with multiple core wires, adjacent core wire between is provided with partition, partition can be separated to core wire, avoid mutual interference between core wire, shielding layer improves the anti-electromagnetic interference effect of cable, the outside of shielding layer is evenly provided with multiple buffer strips, and buffer strip improves the buffering performance of cable.

This utility model relates to the field of sensor technology, and more particularly to a sensor electromagnetic shielding device, which includes a conductive mounting bracket and a shielding cover. The shielding cover is mounted on the mounting bracket, and a cavity is provided inside the shielding cover, with both ends of the cavity penetrating through the shielding cover. The shielding cover is used to house a sensor assembly, and the mounting bracket is used to fix it to an external structure. A sensor with an electromagnetic shielding device is also provided. Compared with the prior art, the sensor electromagnetic shielding device and the sensor with an electromagnetic shielding device provided by this utility model can significantly improve the electromagnetic interference resistance of the sensor assembly and reduce replacement costs.

This invention relates to the field of aviation safety monitoring technology, and discloses a fiber optic dual-line icing detection system and method. It employs Raman scattering distributed optical fibers laid in high-icing areas on the upper surface of the wing to monitor temperature data in the corresponding areas; FBG fiber gratings with a metal coating are bonded along the spanwise direction of the wing skin to stress concentration areas to monitor strain data in the corresponding areas; the temperature and strain monitoring data are demodulated separately; the demodulated temperature and strain data are received, and icing is determined and thickness assessed using a preset icing identification algorithm; during flight, the icing situation is sensed by changes in ambient temperature and ice pressure caused by icing at the installation location, and the signal is transmitted to the anti-icing and de-icing system, improving reliability and safety during flight.

The utility model discloses a kind of force-sensitive trigger probe of annular microstructure optical fiber sensing, it is related to precision measurement technical field, to solve the integration of existing probe structure and FBG sensor generally not high, the problem of limited measurement accuracy improvement;A kind of force-sensitive trigger probe of annular microstructure optical fiber sensing, including support unit, support unit is fixedly connected with annular sensitive unit, the central position of annular sensitive unit is provided with trigger probe unit, annular sensitive unit includes several rings, and sensitive beam is arranged between adjacent rings and between trigger probe unit and nearest ring, and optical fiber grating sensing module is arranged on sensitive beam.The utility model technical scheme considers sensitivity and stiffness, through the combination of multi-ring structure and sensitive beam, both ensure overall stiffness, and realize high sensitivity strain detection by sensitive beam.

This invention belongs to the field of generator fault detection technology, and provides a winding insulation detection method and system considering axial eccentricity faults in generators. The method includes: building a simulation system to independently simulate static eccentricity, dynamic eccentricity, and tilting eccentricity in the generator axial direction; deploying ultrasonic sensors on the generator winding insulation to collect ultrasonic signals generated by wear defects in the winding insulation; extracting the arrival time of the ultrasonic signals using an energy detection method and calculating the arrival time difference, and combining this with a genetic algorithm to locate the wear defects in the winding insulation; performing synchronous sampling and filtering preprocessing on the ultrasonic signals to achieve a quantitative assessment of the wear state of the winding insulation. The present invention is reliable and easy to implement, and the proposed detection method has the characteristics of strong anti-electromagnetic interference capability and high positioning accuracy, and can solve the axial eccentricity simulation problem of vertical hydro generators with a small-volume, low-cost, and practical device.

The invention provides a software-defined GNCE system wide-band filtering electromagnetic compatibility design method, and aims at solving the problems that a traditional fixed parameter filter is insufficient in impedance matching in a 10kHz-18GHz wide-band domain, the resonant frequency is not adjustable, and complex electromagnetic interference cannot be adaptively coped with. According to the invention, the anti-interference capability of the GNCE system in a complex electromagnetic environment can be obviously improved, and the requirements of products on high reliability, high integration and intelligent electromagnetic compatibility design are met.

The utility model discloses an anti-interference petrochemical engineering inclination measuring device, and belongs to the technical field of petrochemical engineering, the anti-interference petrochemical engineering inclination measuring device comprises an outer shell, a protective cover layer is fixedly mounted in the outer shell, a first mounting seat is fixedly mounted in the protective cover layer, and the first mounting seat is close to the midpoint of the outer shell; a first mounting seat is fixedly mounted in the outer shell, an X-axis MEMS chip is fixedly mounted in the first mounting seat, a second mounting seat is fixedly mounted on one side of the first mounting seat in the protective cover layer, a Y-axis MEMS chip is fixedly mounted in the second mounting seat, and a central processing unit is fixedly mounted on one side of the protective cover layer in the outer shell. High measurement accuracy can be kept even in a strong electromagnetic field, meanwhile, the protective cover layer is installed in the outer shell, the size and weight of the device are reduced through the optimized overall layout, and the practicability and convenience of the device are greatly improved.

This utility model discloses a multi-core communication power cable, relating to the field of power cable technology. It includes a cable core composed of multiple wire cores and a flexible filling film layer, with the multiple wire cores arranged in a ring array. The flexible filling film layer is disposed in the gaps between the wire cores. A wrapping shielding layer is wound around the outside of the cable core. A composite insulating film layer is wrapped around the outside of the wrapping shielding layer. A wear-resistant reinforcing film layer is wrapped around the outside of the composite insulating film layer. An outer sheathing layer is wrapped around the outside of the wear-resistant reinforcing film layer. The outer sheathing layer and the wear-resistant reinforcing film layer are formed by extrusion. This multi-core communication power cable, through the double-layer structure of the aluminum-plastic composite film layer and the copper mesh braided film layer of the wrapping shielding layer, combined with the anti-interference isolation film layer of the wire cores, significantly improves the anti-electromagnetic interference capability and ensures the stability of signal and power transmission.

The invention relates to the technical field of ocean engineering monitoring, and discloses an offshore wind plant meteorological and hydrological monitoring multi-mode power supply-communication integrated system, which comprises an underwater unit, a water surface unit and a shore-based monitoring platform, and is characterized in that data communication between the water surface unit and the shore-based monitoring platform is realized through a 4G module and a Beidou satellite; the underwater unit comprises an ADCP, a tide level meter, a noise measuring instrument, a direct-current stabilized power supply, a control circuit, a first acoustic communication machine and a water outlet alarm device. The direct-current stabilized power supply is respectively connected with the ADCP, the tide level meter, the noise measuring instrument, the control circuit, the first acoustic communication machine and the water outlet alarm device; the control circuit is connected with the ADCP, the tide level meter, the noise measuring instrument, the first acoustic communication machine, the water outlet alarm device and the like. The system can realize continuous real-time low-delay monitoring of meteorological and hydrological parameters of the offshore wind plant.