139results about How to "Improve signal stability" patented technology

The invention relates to the technical field of carrier communication, in particular to a multichannel power line carrier communication system which comprises a data acquisition module, a first determination module, a second determination module, a judgment module, a selection module, a sending module and a correction module. According to the invention, through an accurate data acquisition and real-time determination mechanism, complex environment changes in a power network can be effectively dealt with, stability and high efficiency of communication are ensured, channels with optimal parameters such as signal strength, noise, delay and the like are optimized through multi-stage screening and determination, channels with relatively large interference and noise are effectively avoided, and the communication efficiency is improved. Meanwhile, the correction module can adjust the intensity threshold value in real time, it is guaranteed that the system still maintains excellent communication performance when the number of channels fluctuates and the network load changes, and the problems that due to the fact that the attention degree of the influence of real-time environment changes on signal quality is low, channel selection is inaccurate, and verification results are deviated are effectively solved.

The invention relates to the technical field of mining dust concentration monitoring, in particular to a mining dust concentration monitoring system and method, and the system comprises a dust sensor module, a signal amplification and filtering module, an analog-to-digital conversion module and a data processing and monitoring module; the dust sensor module is used for detecting the dust concentration in an underground coal mine and adopts a multi-mode detection mode combining electrostatic induction and optics; the signal amplification and filtering module comprises a low-noise amplifier and a self-adaptive filtering circuit, the multi-mode sensor is combined with the automatic temperature compensation and self-adaptive filtering technology, the measurement precision and the signal stability of the concentration of tiny dust in a complex environment are greatly improved, meanwhile, the temperature compensation function is introduced, and the measurement precision is improved. And by combining a nonlinear compensation algorithm, a dynamic response adjustment mechanism and a multivariable compensation system, the stability and precision of signal amplification in a complex underground coal mine environment are remarkably improved.

The invention discloses a mobile phone data line detection and analysis system, which relates to the technical field of data line detection and is characterized in that a suitable high-speed transmission test environment is created for a data line through a test environment construction module, and signal quality is monitored by equipment such as an oscilloscope and a signal analyzer; the data monitoring module detects a signal transmission bit error rate amplification index and a delay fluctuation index in real time in an environment with or without electromagnetic interference; the data analysis module converts the detection data into a comprehensive feature vector and inputs the comprehensive feature vector into a machine learning model to generate a signal quality index; the comparative analysis module compares the signal quality index with a set threshold value and divides the quality of the data line; and the optimization module predicts the abnormal degree of the low-quality data line, and if the abnormal degree is serious, optimization measures are taken, so that the anti-interference performance of the data line is effectively improved, the error rate and delay fluctuation in the data transmission process are remarkably reduced, and reliable communication and data integrity between equipment are ensured.

The invention belongs to the technical field of distribution line hot-line work, and particularly discloses an electromagnetic protection device and method suitable for a 10KV distribution line hot-line work mechanical arm, the electromagnetic protection device comprises an anti-electromagnetic main control box, an insulation mechanical arm and a tail end tool protection assembly, the anti-electromagnetic main control box comprises a shell and a protection layer, and a main control board is arranged in the shell; the protective layer is arranged on the inner surface of the shell and is used for performing double-layer electromagnetic shielding on the main control board; the tail end tool protection assembly is arranged at one end of the insulating mechanical arm, a control panel in the tail end tool protection assembly is used for receiving a control signal from the main control panel and transmitting the control signal to the motor driving board through an optical fiber, and the motor driving board emits a driving signal to drive a motor to act so as to operate a wire; the power supply module is used for separately supplying power to the control board and the motor driving board. Software shielding and hardware shielding are considered at the same time, the anti-electromagnetic interference capacity of the hot-line work mechanical arm can be improved, and the service life of equipment is prolonged.

The invention relates to a method for preparing hydrogel with strain sensing performance from xylan nanocrystal-stabilized Pickering emulsion in the field of novel functional materials, which comprises the following steps: preparing XyNC at pTMPTA composite microspheres by using XyNC-stabilized oil-water Pickering emulsion as a template and adopting a photopolymerization technology, and then preparing the hydrogel with strain sensing performance by using sodium tetraborate as a cross-linking agent. A dynamic cross-linked network between polyvinyl alcohol in a water phase and XyNC on the surface of the microsphere is constructed by utilizing a borate bond, the stability and strength of a three-dimensional skeleton of the hydrogel are remarkably enhanced, a strain-resistance effect is given to a system, and the hydrogel has excellent application in a flexible strain sensor.

The present invention discloses a vehicle-mounted anti-UAV jamming antenna mounting frame, comprising: an antenna bearing frame and multiple groups of jamming antenna bodies, and the jamming antenna bodies are movably connected to the antenna bearing frame; a signal adjustment component, the signal adjustment component is arranged at one end of the upper surface of the antenna bearing frame, and the multiple groups of jamming antenna bodies are fixedly connected to the signal adjustment component; a signal stabilization component, the signal stabilization component is arranged in multiple groups, and the multiple groups of signal stabilization components are composed of two groups of stabilization components and a reset component. The present invention has the advantages of not only conveniently carrying the jamming antenna mounting plate through the design of the signal adjustment component, but also selecting the best countermeasures according to the anti-UAV situation, thereby improving the practicality of the vehicle-mounted anti-UAV jamming antenna mounting plate, and secondly, through the mutual cooperation of the reset component and the stabilization component, the stability of the signal emitted by the jamming antenna during the driving of the vehicle can be effectively improved.

The utility model discloses a novel accelerator control device. The device comprises a knob mechanism; the first rotating shaft is sleeved on the knob mechanism and is clamped with the knob mechanism; the turntable is arranged on the side wall of the lower end of the first rotating shaft; a shading sheet is arranged on the bottom surface of the turntable; the circuit board is arranged below the turntable, and the lower end of the knob mechanism penetrates through the circuit board, is movably connected with the circuit board and does fixed-axis rotation movement relative to the circuit board; the photoelectric coded disc is arranged on the top surface of the circuit board, is opposite to the anti-dazzling screen and is used for being matched with the anti-dazzling screen to output an electronic signal; and the potentiometer is arranged on the bottom surface of the circuit board, abuts against the lower end of the knob mechanism, rotates synchronously with the knob mechanism and is used for outputting an electronic signal. According to the novel accelerator control device, dual protection can be conducted on the control signal, the accurate and stable accelerator control signal is output, wrong signal output can be effectively avoided, and the working efficiency and the safety coefficient of a vehicle are improved.

The invention provides a heat dissipation improved EEB mainboard as a case component and a wiring method in the technical field of EEB mainboards, and the EEB mainboard comprises a PCB which is provided with a first extension part and a second extension part; the first CPU slot is arranged on the PCB and is positioned at the left lower part of the PCB; the second CPU slot is arranged on the PCB and is positioned at the right lower part of the PCB; the first power supply module is positioned right below the first CPU slot; the second power supply module is positioned right below the second CPU slot; the first memory slot group is arranged on the PCB and located on the left side and the right side of the first CPU slot; the second memory slot group is arranged on the PCB and is positioned on the left side and the right side of the second CPU slot; the PCIE slot group is positioned above the PCB; the first PCIE expansion interface is arranged on the PCB; the second PCIE expansion interface is arranged on the PCB; the PCH is arranged on the PCB; and the four MCIO connectors are arranged on the PCB and the first extension part. The EEB mainboard has the advantages that the heat dissipation performance, the signal stability and the expansibility of the EEB mainboard are greatly improved on the premise that the compatibility is guaranteed.

The invention discloses a micro-flow sensing chip based on thermal feedback and digital power distribution and a control method, the chip comprises a microstrip line assembly and an interface circuit which are arranged on a substrate, and the interface circuit comprises an amplifier, a comparator, a controller and a phase inverter; a connection point between the first fixed-value resistor and the fourth thermistor and a connection point between the second fixed-value resistor and the first thermistor are respectively connected with two input ends of an amplifier; the connecting end of the first fixed-value resistor and the second fixed-value resistor is connected with a voltage-stabilized power supply; the output end of the amplifier is connected with the positive input end of the comparator; the output end of the comparator is connected with one connecting end of the controller; the other connecting end of the controller is connected with the input end of the phase inverter and one end of the second thermistor; the output end of the phase inverter is connected with one end of the third thermistor. According to the flow sensing microsystem, the flow sensing chip is connected with the exclusive interface circuit in the thermal feedback mode, the signal stability of the integrated sensing microsystem is enhanced, and the inherent temperature drift problem is solved.

The invention belongs to but not limited to the technical field of surface analysis, and particularly relates to a dielectric material surface charge density and surface potential measurement method and device, and the method comprises the steps: S1, enabling a to-be-measured dielectric material to be subjected to an electrostatic force F through an external electric field, and transmitting the electrostatic force F to a compound pendulum frame through a sample support; s2, the pendulum frame of the compound pendulum rotates by an angle delta theta under the action of the electrostatic force F; s3, the angle delta theta is equal to the displacement x of a middle pole plate of the bottom capacitance displacement detection system; s4, the differential capacitance delta C of the two capacitors of the capacitance displacement detection system is in direct proportion to the rotation angle delta theta; and S5, after modulation and demodulation of the capacitance sensing circuit, the delta C is converted into a voltage output signal VO.

The invention relates to the technical field of optical fiber wireless communication and mobile forward transmission, in particular to a digital analog optical fiber wireless forward transmission transmitting end parameter self-adaptive optimization method and system based on reinforcement learning. Decomposing the normalized wireless signal into digital parts of all levels and a final analog residual error part through multi-level modulation, and transmitting the digital parts and the final analog residual error part in a time division multiplexing manner; a receiving end represents inter-symbol interference caused by link nonlinear distortion and bandwidth limitation, and the signal-to-noise ratio of a recovery signal is calculated based on the error vector amplitude. Parameters of a transmitting end are optimized and modeled into a Markov decision process, states comprise rounding factors, scaling factors, constellation forming factors and pre-equalization filter tap coefficients of all levels, and actions are discrete increments of the parameters; a reinforcement learning agent is constructed by using a dual deep action value network, and training is updated in combination with experience playback and a target network. The reward function comprises a threshold satisfaction item and a signal-to-noise ratio change item; parameters are interactively updated in the training stage, and online self-adaptive adjustment is performed in the reasoning stage.

The invention discloses an immunofluorescence imaging method for driving tyramine signal amplification based on chemiluminescence and application thereof, and relates to the technical field of biomedical imaging. The immunofluorescence imaging method comprises the following steps: carrying out first incubation on a to-be-detected sample and a peroxidase-labeled antibody; performing second incubation on the to-be-detected sample after the first incubation and a tyramine substrate containing a fluorophore under a dark condition; adding a chemiluminescent substrate solution into the to-be-detected sample after the second incubation, and carrying out image acquisition; wherein the antibody can be specifically bound with a target protein; the tyramine substrate can generate active free radicals under the catalysis of peroxidase, so that the active free radicals are covalently cross-linked with tyrosine residues; the chemiluminescent substrate solution comprises hydrogen peroxide and luminol. The immunofluorescence imaging method improves imaging signal and fluorescence stability, effectively reduces background interference and phototoxicity, is suitable for long-time stable fluorescence immunoimaging, and is especially suitable for high-sensitivity detection of low-expression protein markers.

The invention relates to a server cable-free connecting device and method. The device comprises an I / O adapter plate assembly, and the input end of the I / O adapter plate assembly is connected with a mainboard of a server; the input end of the I / O board assembly is connected with the output end of the I / O adapter board assembly, and the output end of the I / O board assembly is fixed on a case of the server. According to the server cable-free connecting device and method, excessive and messy switching cables caused by more output ports of equipment can be avoided, and the problem that the ventilation effect of the equipment is affected due to the fact that excessive cables disturb and even block an air outlet duct of the equipment is solved; and meanwhile, the signal wiring distance can be effectively shortened, the signal stability of external interfaces is improved, the arrangement density of components and interfaces is improved, and the space utilization rate in the case is also improved.

The invention discloses an implementation method of a micro POF transceiver for long-distance power supply and data transmission, the transceiver comprises an end A and an end B, and power supply and data transmission are realized by using a photoelectric composite cable. The A end is powered by a POE power supply and amplifies an input signal to a sufficient level to drive an LD laser to emit light, thereby realizing POF optical signal transmission. And the B end receives 12V-60V wide voltage input, stable 12V voltage is output through the voltage reduction and stabilization module, and network signals are output through the RJ45 interface at the same time. According to the scheme, the POE and POF technologies are combined, the problems that the existing POE transmission distance is limited and the network rate is attenuated are solved, 13W POE power supply and 1000M data transmission can be realized within the range of 800m, and different power supplies and devices are compatible. And through a mini design and an independent heat dissipation module, the stability and the industrial environment adaptability of the system are improved. The technology greatly prolongs the transmission distance, simplifies wiring, and is suitable for high-requirement network scenes such as enterprises and parks.

The invention discloses a 5G communication equipment signal enhancement antenna folding structure which comprises a case, a sliding rail is fixedly connected in the upper side of the case, a sliding block is slidably connected in the sliding rail, a first rotating shaft is rotatably connected in the upper side of the sliding block, and a rotating disc is fixedly connected to the upper portion of the first rotating shaft. Two sets of rotating plates are fixedly connected to the upper side of the rotating disc, a second rotating shaft is rotatably connected between the rotating plates, a supporting plate is fixedly connected to the outer side of the second rotating shaft, a connecting block is fixedly connected to one side of the upper portion of the supporting plate, a lifting block is fixedly connected to the other side of the connecting block, and a connecting frame is slidably connected to the outer side of the lifting block; a connecting plate is fixedly connected to the other side of the connecting frame, four sets of rotating blocks are fixedly connected to the two sides of the upper side of the connecting plate, third rotating shafts are rotationally connected to the sides, facing each other, of the rotating blocks on the same side, antennas are fixedly connected to the sides, facing each other, of the third rotating shafts on the upper side and the lower side, and the carrying safety is improved.

The invention discloses a network layout design method based on Samsung 4nm, and relates to the technical field of semiconductor layout design. Comprising the following steps: selecting two layers of topmetal to construct a power ground network; a power supply layer and a ground layer are overlapped, the power supply layer is connected with a power supply to form a low-impedance power supply network, and the ground layer is grounded to form a low-impedance ground network; uniformly distributed power supply ground voltage stabilizing capacitors are formed between the power supply layer and the ground layer, and the ground layer is connected with a ground network; according to the invention, the two layers of top metal are arranged in an overlapped manner, so that a low-impedance power ground network and a voltage stabilizing capacitor which are uniformly distributed are formed, a low-impedance grounding network is provided, and noise interference is effectively reduced; a power ground network is constructed, low impedance is achieved, a power ground with higher quality is provided, electromagnetic interference is better restrained through a large number of evenly-distributed shielding networks, and the circuit is protected against the influence of external electromagnetic interference.

This utility model provides an integrated multi-functional smart speaker, relating to the field of smart speaker hardware structure technology, including a housing head, a housing body, and a housing base; the housing head is hemispherical, with an OLED display screen inside, and four microphone pickup holes on the outside of the housing head, the microphone pickup holes being covered with dustproof mesh. This utility model adopts a partitioned layout, with the communication area near the heat dissipation holes and antenna, the voice area near the pickup holes, and the control area located in the center, reducing signal interference and heat accumulation between modules, improving 4G / WiFi signal stability and voice pickup effect. It features high integration and low interference, solving the problem in existing smart speakers where 4G communication, WiFi hotspot, and voice interaction modules are mostly independent components with scattered layouts, resulting in large speaker size, severe internal signal interference, low integration of functional modules, and affecting 4G / WiFi signal stability and voice pickup effect.

The utility model relates to an FPC automatic plugging device, the FPC automatic plugging device comprises a bearing platform, a plugging mechanism and an induction mechanism, the bearing platform is provided with a first bearing position for accommodating an FPC and a second bearing position for accommodating a PCB; the plug-in mechanism is arranged on the bearing table, the plug-in mechanism can move between the first bearing position and the second bearing position, the plug-in mechanism comprises an adsorption assembly and a cover opening and closing assembly, the adsorption assembly is used for adsorbing the FPC, and the cover opening and closing assembly is used for opening or closing a piano cover on the PCB; the sensing mechanism is arranged on the bearing table and used for obtaining the size and the direction of plugging force in the plugging process of the FPC and the PCB so as to adjust the action of the plugging mechanism. According to the FPC automatic plugging device provided by the invention, automatic plugging of the FPC on the PCB can be realized, and in the plugging process of the FPC and the PCB, the induction mechanism obtains the size and direction of the plugging force to adjust the plugging mechanism, the plugging position relation of the FPC and the PCB interface is adjusted and compensated, and the signal stability after plugging of the FPC and the PCB is improved.

This invention discloses a high-throughput screening method for monkeypox virus (MPXV) N7-methyltransferase (N7-MTase) inhibitors based on fluorescence polarization technology and its application. This method uses MPXV E1... CTD Using the / E12 protein complex as a target, and leveraging the specific binding characteristic of the fluorescent probe FL-NAH to the target catalytic center, small molecule inhibitors that competitively bind to the SAM binding site are screened by monitoring changes in fluorescence polarization signals. This invention yielded a series of candidate compounds with significant inhibitory activity. Experiments demonstrated that these inhibitors exhibit strong inhibitory effects on MPXV N7-MTase, with a biochemical IC50 level of [missing information]. 50 Preferably, the concentration can reach 4.65 μM; at the cellular level, the compound exhibits a clear attenuation effect against poxviruses, with an EC50 value of [missing value]. 50 The range is up to 46.75 μM, and it has low cytotoxicity (CC). 50 >200 μM).

The utility model provides a device for measuring dissolved oxygen and oxidation-reduction potential of underground water. Comprising an adjustable supporting frame, a cable drum assembly arranged below the adjustable supporting frame, a composite cable arranged on the cable drum assembly, a self-adaptive adjusting assembly arranged at the bottom of the composite cable and a detection assembly arranged at the bottom end of the self-adaptive adjusting assembly. The underground water dissolved oxygen and oxidation-reduction potential detection device can accurately detect underground water dissolved oxygen and oxidation-reduction potential, and signal stability and environmental adaptability are improved.

The utility model discloses a split type atomization driving device and an atomization machine, the device comprises an atomizer, a driver and a power supply device, the atomizer is provided with a plurality of atomization modules, and the atomizer is installed in a liquid cavity; the power supply device is arranged in a mounting cavity isolated from the liquid cavity and comprises a heat dissipation box body and a power supply mounted in the heat dissipation box body; the driver is installed in the heat dissipation box body, the driver is electrically connected with the power supply, and the driver is electrically connected with the atomizer through a cable; and the driver is connected with the main controller through a circuit and is used for driving the atomizer to work according to a control signal of the main controller. According to the utility model, the abnormal replacement cost and the maintenance difficulty can be reduced, and the maintenance processing efficiency is high.

This utility model relates to the field of computer keyboard technology and discloses an anti-ghosting computer keyboard membrane switch, including a membrane body. An upper wire is disposed inside the membrane body, and a middle partition layer is disposed on the lower surface of the upper wire. The outer wall of the middle partition layer is disposed inside the membrane body, and a circular hole is formed inside the middle partition layer. A lower wire is disposed on the lower surface of the middle partition layer, and the outer wall of the lower wire is disposed inside the membrane body. A conductive line is disposed inside the lower wire, and solder pads are fixedly connected to both outer walls of the conductive line. In this utility model, through the cooperation of the upper wire, middle partition layer, circular hole, lower wire, conductive line, solder pads, UV bridge, and surface mount, effective insulation and isolation are achieved, enhancing signal stability and anti-interference, reducing the probability of accidental touches, and simultaneously realizing a precise and reliable conduction triggering function, thereby effectively preventing ghosting.

The invention relates to an electrochemiluminescence sensor based on an intelligent controlled release-interface capture-self-enhancement mechanism and application of the electrochemiluminescence sensor in procalcitonin detection, and belongs to the technical field of electrochemiluminescence detection. Controllable release of signal molecules is achieved by packaging terpyridyl ruthenium through ZIF-8, meanwhile, a DNA layer rich in guanine is modified on an electrode interface, and the layer can serve as a nano trap to efficiently capture the signal molecules and can also serve as a co-reactant to achieve signal amplification. A DNA strand displacement reaction is utilized to regulate and control a target response release process, and detection is realized according to a quantitative relationship between the concentration of procalcitonin and an electrochemical luminescence signal. A labeling recovery method verifies that the recovery rate of the sensor in a human serum sample reaches 100.6-103.6%, good accuracy and precision are shown, and a reliable platform is provided for clinical detection of inflammatory markers.

The invention belongs to the technical field of signal filtering, and discloses a roller internal defect ultrasonic signal filtering method, which adopts improved median filtering as a primary filter, can effectively eliminate high-frequency noise in ultrasonic signals, and greatly improves the parameter optimization convergence speed of a subsequent secondary filter. According to the method, the multi-stage filter is constructed as the second-stage filter, the intelligent optimization algorithm is adopted to replace a traditional least square algorithm to obtain the parameters of the filter, operation of a related parameter matrix and an inverse matrix of the related parameter matrix is not needed, and the filter parameter solving process is greatly simplified. The two-stage filter designed by the invention is simple in structure and easy to realize, does not need complex matrix operation, can effectively filter background clutters and interference signals in the roller ultrasonic signals, and provides a basis for subsequent roller internal defect automatic identification research.

The application discloses a DRAM particle module capable of increasing the ball gap. The DRAM particle module comprises a DRAM particle and an adapter plate; the bottom of the DRAM particle is provided with a plurality of first solder balls, the bottom of the adapter plate is provided with a plurality of second solder balls, and the DRAM particle is welded to the adapter plate through the plurality of first solder balls; the plurality of first solder balls have a first diameter and a first ball gap, the plurality of second solder balls have a second diameter and a second ball gap, the first diameter is smaller than the second diameter, and the first ball gap is smaller than the second ball gap; and the adapter plate is used for converting the signals transmitted by the plurality of first solder balls into signals transmitted by the plurality of second solder balls, so that the DRAM particle interacts with the outside through the plurality of second solder balls. The application takes into account the high integration of the DRAM particle in the module and the large gap of the solder balls at the bottom of the module, and can effectively solve the problem that the DRAM particle of the POP package is difficult to be applied to a low-order PCB.

This utility model provides a water spray circulation system for ultrasonic testing, comprising: a water tank; a water pump, the inlet of which is connected to the water tank; a gas separation device, including a separation chamber and a defoaming plate, the separation chamber being connected to the outlet of the water pump, the inlet of the separation chamber being opposite to the defoaming plate, so that the water flow impacts the defoaming plate and flows downward along the plate surface to form laminar flow; and a water sprayer connected to the separation chamber, which contains an ultrasonic probe. The water spray circulation system for ultrasonic testing produces a water column with fewer bubbles, resulting in high detection accuracy for the tested object.

The application relates to a SIP packaging structure applied to a blood glucose meter and a production process, and relates to the field of blood glucose meters.The SIP packaging structure comprises a multilayer wiring substrate and a packaging body, the multilayer wiring substrate is provided with a mounting area for mounting functional chips and interconnection lines for realizing electrical connection of the chips; the functional chips comprise an MCU chip U2, a storage chip U1, a Bluetooth chip U3, an NFC chip U4 and a power supply chip Q; the MCU chip U2, the storage chip U1, the Bluetooth chip U3, the NFC chip U4 and the power supply chip Q are integrally mounted on the multilayer wiring substrate; a crystal oscillator is further arranged on the multilayer wiring substrate and used for providing a clock signal for the MCU chip U2; the multilayer wiring substrate and the chips mounted thereon are formed into the packaging body through injection molding packaging. The application has the effects of reducing the internal circuit volume of the blood glucose meter, protecting the chips as a whole through the packaging body, improving the water tightness and air tightness of the device, and enhancing the reliability of the equipment.

The invention discloses a portable EIT data acquisition device. The portable EIT data acquisition device comprises a microcontroller module, a current source excitation module, m multi-way switch modules, m 32 electrode arrays and an analog-to-digital converter module. The microcontroller controls the switch module to select injection and measurement electrodes according to a measurement mode, the current source excitation module generates alternating current signals and injects the alternating current signals into a measured field domain, and the electrode array collects voltage signals. And the analog-to-digital converter module converts the voltage signal into a digital signal and transmits the digital signal to the microcontroller, so that field impedance information is obtained, multi-electrode configuration is supported, and different measurement requirements are met. According to the invention, the problems of large size, poor expansibility and the like of existing equipment can be solved, and the most appropriate gain setting is adaptively selected through an automatic calibration technology, so that the measurement precision is improved; meanwhile, the multi-electrode requirement is met, different measurement conditions are adapted, more accurate electrical impedance distribution detection is achieved, and finally the application requirements of wearable equipment and mobile monitoring can be met.

A tower crane variable frequency motor encoder anti-electromagnetic interference signal lead-out device comprises an encoder installed at the tail of the variable frequency motor, the encoder is connected to the encoder side aviation male plug through a double-layer shielded lead-out line; the encoder side aviation male plug is plug-connected with the inverter side aviation female plug, and the inverter side aviation female plug is connected to the inverter through a double-layer shielded extension line; the encoder side aviation male plug is fixed to the outer surface of the cover shell at the tail of the variable frequency motor through a mounting bracket; after the encoder side aviation male plug is docked with the inverter side aviation female plug, the shielding layer of the double-layer shielded lead-out line, the male plug shell, the female plug shell, and the shielding layer of the double-layer shielded extension line form a closed conductor container, and the conductor container is grounded in turn through the mounting bracket and the shell of the variable frequency motor. The invention has a simple structure and is easy to install, improves the anti-interference ability and signal stability of the variable frequency motor encoder signal, and ensures the stable operation of the three major mechanisms of the inverter and the tower crane.

The invention discloses a hybrid network monitoring method and monitoring device for a broadcast television system. The hybrid network monitoring method comprises the following steps: monitoring a plurality of switches and a plurality of video devices in a hybrid network; when the plurality of switches and the plurality of video devices change, automatically updating switch information and video device information of the hybrid network; and identifying a video sub-network and an IP sub-network in the hybrid network according to the switch information and the video equipment information of the hybrid network, and constructing a topological structure of the hybrid network. According to the hybrid network monitoring method, the topological structure of the whole hybrid network is automatically sensed and reconstructed, so that the network forwarding performance and the signal stability are improved, and the stability, flexibility and flexibility of the hybrid network are improved.