303results about How to "Avoid electromagnetic interference" patented technology

The invention discloses a full-tensor high-order magnetic field gradient sensing system and a use method, the full-tensor high-order magnetic field gradient sensing system comprises a magnetic field sensing probe, a non-metal directional support, a high-strength engineering plastic shell and a communication antenna, the magnetic field sensing probe comprises a pure wood support frame, 15 three-axis magnetic field sensors and a magnetic field acquisition processing communication module; the nine three-axis magnetic field sensors are distributed in an xy plane in a shape like a Chinese character'tian ', and the six three-axis magnetic field sensors are arranged in an xz plane in an upper row and a lower row. The magnetic field sensing probe is installed in the nonmetal directional support through the pure wood supporting frame, and the z-axis of the magnetic field sensing probe is always kept in a plumb downward mode. The plastic sealed shell is wrapped outside the directional support, and the communication antenna is covered on the shell. By adopting the full-tensor high-order magnetic field gradient sensing system and the full-tensor high-order magnetic field gradient sensing method, all first-order and second-order magnetic field gradient parameters can be obtained, so that accurate measurement is carried out.

The invention discloses an energy-saving and environment-friendly intelligent outdoor box-type substation, and belongs to the technical field of box-type substations, and the substation comprises a box-type housing, and the side wall of the box-type housing is provided with a heat dissipation window in a penetrating manner; the sealing assembly comprises a filtering mechanism and a drying mechanism, the filtering mechanism is installed at a port of the heat dissipation window and used for isolating and filtering out particle impurities in the air, the drying mechanism is arranged in the heat dissipation window in a sliding mode and used for adsorbing and removing water vapor in the air, and separation and combination with the filtering mechanism are achieved through sliding of the drying mechanism; the opening is used for opening or closing the radiating window; the flow guide assembly comprises a solar top cover and a fan; the rainfall assembly is arranged at the bottom of the outer edge of the solar top cover and located above the sealing assembly, and the rainfall assembly is used for synchronously driving the sealing assembly and the flow guide assembly during rainfall; and the water accumulation assembly is arranged on the outer side of the bottom of the box type shell and located below the sealing assembly, and the water accumulation assembly is used for locking the water falling assembly and sealing the sealing assembly when water is accumulated on the ground.

The invention belongs to the technical field of wire harness conduction detection, and particularly relates to a wire harness conduction detection device comprising a detection platform; the multiple groups of detection mechanisms are distributed above the detection platform in a linear array mode, each group of detection mechanism comprises two mounting frames symmetrically arranged above the detection platform, and the two mounting frames are internally provided with test terminals communicated with the two ends of a wire respectively; and the multiple sets of self-adaptive clamping mechanisms are arranged, are used in cooperation with the mounting frames correspondingly and are used for conducting self-adaptive clamping and fixing on the wires according to the diameters of the wires. By arranging the self-adaptive clamping mechanism, the wire can be clamped and fixed in a self-adaptive manner according to the diameter of the wire, the fixing effect on the wires with different diameters in the wire harness is improved, the stability of wire connection is improved, and the influence on conduction detection of the wire is avoided.

The invention relates to the technical field of cables, in particular to an airtight cold-resistant low-smoke flame-retardant instrument cable used in an explosive environment, which comprises a protective sleeve, a cable body mechanism is arranged in the protective sleeve, the cable body mechanism comprises inner sheaths, and a plurality of inner sheaths are uniformly mounted in the protective sleeve at equal intervals. According to the invention, heat dissipated in the use process of the cable can be utilized to preheat the main body structure of the cable, so that the cold resistance of the cable is improved while internal heat dissipation is promoted; according to the invention, the structure of the cable is improved, the connection stability among the structures of the cable can be improved, the air tightness of the cable is effectively improved, the throttling effect of the heat insulation shell and the guide ring can be fully utilized, the flame retardance of the cable is improved, the cable can be better matched with the external environment, and the application range of the cable can be effectively expanded while the working stability of the cable is improved.

The utility model discloses a skin protecting and supporting device of a traditional Chinese medicine external treatment box, which comprises a connecting containing cylinder which is of an integral structure and is made of elastic materials, and an external expansion cover positioned at the lower end of the connecting containing cylinder. An upper protruding ring, an annular groove, an annular side wall and a moxibustion therapy box supporting ring are sequentially machined on the inner wall of the connecting containing cylinder from top to bottom. The inner diameter of the upper protruding ring is smaller than that of the annular side wall, the inner diameter of the annular side wall is smaller than that of the annular groove, and the inner diameter of the treatment box supporting ring is smaller than that of the annular side wall. The outer edge of the outer expansion cover is located on the outer side of the outer wall of the connecting containing cylinder and is lower than the inner edge. By means of the device, the traditional Chinese medicine external treatment medicine cake box is fixed to the lower side of the cylinder bottom plate, the device has the advantage of being convenient to disassemble and assemble, and electromagnetic interference cannot be generated on a storage communication element; a skin protecting and supporting device is additionally arranged between the moxibustion fumigation traditional Chinese medicine external treatment device and the skin at the body acupoints, and conversion of moxibustion therapy modes can be achieved.

The invention belongs to the technical field of blood oxygen detection, and particularly relates to a non-invasive blood oxygen detection method. The main machine shell is arranged on the upper portion of the blood oxygen machine, a blood oxygen sensor is arranged below the blood oxygen machine and electrically connected with the main machine shell, the main machine shell comprises a single chip microcomputer, an analog front end driving module, a display module, a circuit module, a signal receiving module, a digital signal processing module and a storage module, and meanwhile a lithium battery is arranged in the main machine shell. A power supply is provided for the oximeter; the blood oxygen sensor is directly connected with the signal receiving module to form a blood oxygen signal receiving module, and the blood oxygen signal receiving module is connected with the digital signal processing module to convert a voltage signal into a digital signal; according to the invention, the problem that detection signal pulse wave output signals are interfered by serious noise such as environmental noise and hardware circuits is solved; the problems of signal loss and signal superposition caused by a traditional filtering method are solved.

The invention discloses an electromagnetic shielding case and a circuit board, the overall mechanical property of the electromagnetic shielding case is adjusted by limiting the elastic modulus E1 of an insulating layer and the elastic modulus E2 of the electromagnetic shielding case to meet the condition that E2-E1 / E2 is greater than or equal to 0.95 and less than 1, so that the insulating layer can play a role in supporting and protecting, the stress borne by the electromagnetic shielding case is reduced, and the service life of the electromagnetic shielding case is prolonged. Therefore, the electromagnetic interference between the components can be avoided in the device gap with a smaller gap, the conformal capability of the electromagnetic shielding cover to the circuit board is improved, and the shielding effect is improved.

The utility model discloses a silane cross-linked polyvinyl chloride flame-retardant cable, which comprises a cable core, three annularly distributed wire cores are arranged inside the cable core, a composite shielding layer is wrapped outside the cable core, and the composite shielding layer is composed of a conductive layer, an insulation isolation layer and a protection layer. The outer portion of the composite shielding layer is wrapped by a composite flame-retardant layer, the composite flame-retardant layer is composed of a base layer, a heat isolation layer and a reinforcing layer, the outer portion of the composite flame-retardant layer is wrapped by a composite protection layer, and the composite protection layer is composed of an inner protection layer, a waterproof layer, a sheath layer and an anti-ultraviolet layer. The problem that the insulation performance is reduced due to the fact that the insulation material is softened when the cable is in a high-temperature environment for a long time is solved.

The utility model relates to the field of signal acquisition, in particular to a signal acquisition structure with a signal shielding protection structure. The technical problem is that in the process of collecting weak signals, a conductive material is used for wrapping a signal collector to form a Faraday cage effect, so that a method for blocking external electromagnetic interference may cause certain influence on target signals, and thus the collection result may be slightly influenced. According to the technical scheme, the signal acquisition structure with the signal shielding protection structure comprises a heat dissipation assembly, a heat conduction assembly and an anti-interference assembly. By arranging the adjustable shielding device and the built-in heat dissipation system, the equipment can flexibly adjust the contact area between the signal receiving assembly and the outside, so that the acquisition effect is prevented from being influenced by insufficient target signal strength, and meanwhile, the built-in heat dissipation system can reduce the internal temperature of the equipment in real time, so that the acquisition efficiency is improved. Efficient operation in the signal acquisition process is ensured, and performance reduction caused by overheating is prevented.

The invention discloses a circuit, a system and a PCB structure for improving electric leakage performance of a PCB based on an FR-4 board, the circuit and the system are suitable for current measurement of a semiconductor lower than picoampere level, the circuit and the system comprise an equipotential protection layer, the equipotential protection layer is connected with a signal line and is arranged close to a signal end, the equipotential protection layer is used for ensuring that the potential of the equipotential protection layer is the same as that of the signal end, and the equipotential protection layer is connected with the signal line and is arranged close to the signal end; the two ends of the to-be-protected signal line have no voltage difference so as to reduce an electric leakage state; the constant-temperature protection module is connected with the equipotential protection layer and comprises a heating resistance wire, a temperature detection chip, a temperature control unit, an isolation buffer unit and an isolation power supply, under the condition of not increasing too much cost, a common pcb plate FR-4 can be used for realizing a picoampere-level electric leakage test, a dual-guarantee effect is provided, and the cost is reduced. Comprising equipotential protection and heating dehumidification to increase dielectric impedance.

The invention relates to a temperature sensor for a ship engine, and the temperature sensor comprises a metal protection outer tube, a thermal resistor element, a high-temperature-resistant wire and a high-temperature signal cable, the metal protection outer tube is formed by sequentially connecting a first metal tube, a variable cross-section sleeve and a second metal tube, and the end part of the second metal tube is welded with a sealing connection end; the thermal resistance element is arranged at the end part of the first section of metal tube; the high-temperature-resistant wire extends to the sealing connecting end from the first section of metal pipe; one end of the high-temperature-resistant wire is welded with the thermal resistor element, the other end is welded with one end of the high-temperature signal cable, and the welding point is located in the sealing connection end; the interior of the temperature measuring end is filled with an inorganic insulating material. High-temperature inorganic glue is filled in gaps among the leads of the thermal resistor element and gaps among the high-temperature-resistant wires; and the sealing connecting end is filled with high-temperature insulating sealant. The sensor can bear vibration, impact, bumping, inclined swinging and the like with a certain margin, and has good mechanical performance.

The invention relates to a surface discharge stage judgment device and method based on ultrasonic propagation, and the method comprises the steps: simulating a surface discharge phenomenon with an insulation fault, and generating various characteristic parameter changes of an insulation fault surface discharge electric signal; various characteristic parameter change signals of the sound signals caused by insulation fault surface discharge electric signal changes are obtained in real time, the influence of a sound propagation path on the sound signals is combined, the various characteristic parameter change signals are converted into computable data, and characteristic data are extracted; and the creeping discharge stage judgment module judges the creeping discharge stage of the insulation fault in combination with the detection data obtained by the ultrasonic propagation detection module and the oscilloscope. Compared with the prior art, the method has the advantages that the ultrasonic propagation influence is considered, and accurate and reliable judgment of the creeping discharge stage is realized based on various characteristic parameter changes of the acoustic signal caused by various characteristic parameter changes of the creeping discharge signal.

The utility model relates to the technical field of touch screens, and discloses a touch screen with an anti-electromagnetic interference function, which comprises a shielding shell, a supporting bottom plate is movably connected to the inner bottom of the shielding shell, OCA optical cement is fixedly connected to the top of the supporting bottom plate, an ITO lower film layer is fixedly connected to the top of the OCA optical cement, and an ITO upper film layer is fixedly connected to the bottom of the supporting bottom plate. An isolation layer is fixedly connected to the top of the ITO lower film layer, the shielding shell comprises a shielding shell body, transverse shell plates are fixedly connected to the front face and the back face of the top of the shielding shell body, longitudinal shell plates are fixedly connected to the two sides of the top of the shielding shell body, and fixing screws are fixedly connected to the tops of the two sides of the transverse shell plates; an interface slot is formed in the middle of one side of the shielding shell; according to the utility model, the touch screen body is fixed in the shielding shell, and the transverse shell plate and the longitudinal shell plate are fixed on the four sides of the top of the shielding shell by using the fixing screws, so that the touch screen can be protected through the shielding shell, and electromagnetic interference is prevented.

The invention relates to the technical field of geophysical prospecting, in particular to a borehole transient electromagnetic instrument, which comprises a power supply short section and a detection short section, the power supply short section and the detection short section are detachably connected, the borehole transient electromagnetic instrument can be propelled along with a drill rod, and the detection short section can simultaneously measure magnetic field change information in three orthogonal directions. A data storage unit and an attitude measurement module are also integrated. The invention provides a high-integration borehole transient electromagnetic instrument, which can realize integration of borehole trajectory measurement and transient electromagnetic three-component measurement, has the function of storing test data, does not need to connect a communication cable in the test process, and reduces the complexity of system connection.

The invention relates to a miniaturized high-frequency microwave transmission structure for height difference transition. The miniaturized high-frequency microwave transmission structure comprises a microwave multilayer dielectric substrate. The microwave multilayer dielectric substrate comprises a substrate main body, an upper side metalized conduction band and a lower side metalized conduction band. The substrate body comprises a first conduction band layer, a second conduction band layer, a third conduction band layer, a first dielectric layer and a second dielectric layer. Metalized through holes are formed in the substrate main body; the second conduction band layer comprises a middle layer signal conduction band and two fifth grounding conduction bands; and the metalized through hole passes through the first dielectric layer and the second dielectric layer and is connected with the first conduction band layer, the second conduction band layer and the third conduction band layer. Compared with an existing transition structure, the miniaturized high-frequency microwave transmission structure can effectively solve the problem of transmission transition of various height differences in a radio frequency microsystem module, not only ensures good transmission characteristics, but also can adapt to various height differences, and is convenient for realizing miniaturized integration of the radio frequency microsystem module.

The invention discloses an electromagnetic interference real-time elimination method, and relates to the technical field of magnetic resonance imaging. The method comprises the following steps: acquiring calibration data; obtaining a convolution kernel based on the calibration data, and determining a convolution kernel coefficient; determining a frequency domain coefficient based on the convolution kernel coefficient; original data are collected, Fourier transform is carried out to obtain corresponding frequency domain data, and the frequency domain data comprise induction coil frequency domain data and receiving coil frequency domain data; and based on the frequency domain coefficient and the frequency domain data of the induction coil, performing frequency domain weighted summation to obtain estimation of the frequency domain of the electromagnetic interference signal of the receiving coil, and based on the estimation, performing elimination from the frequency domain data of the receiving coil to realize electromagnetic interference elimination. According to the method, the convolution operation is replaced by the frequency domain weighting sum, the calculation efficiency is improved, and real-time and stable electromagnetic interference elimination can be realized.

The utility model relates to a display assembly and a display device. The display assembly comprises a shell, a display screen and a shielding film, wherein the shell is provided with an accommodating cavity; the display screen is arranged in the accommodating cavity; the shielding film is arranged on the side, away from the shell, of the display screen and borne by the shell, and the shielding film is electrically connected with the shell so that the display screen can be sealed in the containing cavity. The display assembly has good electromagnetic compatibility performance.

The invention discloses a liquid-cooling over-charging terminal and a cooling control system thereof.The liquid-cooling over-charging terminal comprises a liquid-cooling over-charging terminal shell, a liquid-cooling over-charging terminal door body is hinged to one side of the liquid-cooling over-charging terminal shell, a partition plate is arranged in the liquid-cooling over-charging terminal shell, and a control module is arranged in the liquid-cooling over-charging terminal shell; a switching power supply module is arranged at the position, below the control module, in the liquid cooling over-charging terminal shell, a gun line is arranged at an interface of the switching power supply module, and a liquid cooling charging gun is arranged at the end of the gun line; the heat insulation plates are designed in the cooling box, cooling liquid at different temperatures is separated, heat exchange is reduced, the respective temperatures are kept stable, in addition, the heat dissipation effect is further enhanced through the heat conduction design of the bottom of the cooling box and the extension part structure, through the design of the first forked cylinder and the second forked cylinder, accurate control over the flowing path of the cooling liquid is achieved, and the cooling effect is improved. And the flow and the direction of the cooling liquid can be adjusted according to actual requirements, so that more accurate temperature control is realized.

The invention relates to the technical field of equipment monitoring, in particular to an electrical equipment overheating monitoring device which comprises a lower shell, a detection module, a filtering module and a power module are installed in the lower shell, and the detection module is electrically connected with the power module; an inner partition plate is buckled on the lower shell, a main board PCB is installed on the inner partition plate, the main board PCB is electrically connected with the power supply module, the main board PCB is further electrically connected with a display screen module, and the display screen module is located above the main board PCB; an upper shell is buckled on the lower shell, and the top of the display screen module is inserted into the upper shell; the bottom of the lower shell is rotationally connected with a guide rail mounting plate, and an air stabilizing assembly is further mounted between the guide rail mounting plate and the lower shell. According to the invention, through the arrangement of the gas stabilization assembly and the shielding part, the problems that the device cannot detect the specific position of overheating, and when the specific position is detected, the disturbance of the gas flow can cause the poor detection effect, and the detection and the specific position cannot be considered at the same time are solved.

An electronic cigarette radio frequency source device comprises a radio frequency function board and a shielding isolation frame fixedly connected to the radio frequency function board. The system function board is fixedly connected to the shielding isolation frame and located on the side, away from the radio frequency function board, of the shielding isolation frame; wherein an accommodating space is formed among the radio frequency function board, the shielding isolation frame and the system function board, a shielding partition plate group is integrally formed on the shielding isolation frame, and the accommodating space is divided by the shielding partition plate group. The accommodating space is divided by the shielding partition plate group, and the accommodating space in the device is divided into a plurality of areas, so that the areas in the accommodating space can effectively avoid mutual electromagnetic interference. The design that the radio frequency function board is located on the side, away from the system function board, of the shielding isolation frame, the containing space is formed among the radio frequency function board, the shielding isolation frame and the system function board, and radio frequency radiation is sealed in the containing space is adopted, so that the electromagnetic compatibility between a circuit on the radio frequency function board and a circuit on the system function board is improved.

The invention relates to a conductive and electromagnetically shielding polyaryletherketone-based composite material and a preparation method thereof, comprising the following steps: S1, forming a mixed dispersion of a carbon-based MFI structure molecular sieve and a metal salt, and performing a heating reaction to obtain a loaded carbon-based MFI structure molecular sieve; S2, uniformly mixing the loaded carbon-based MFI structure molecular sieve and polyaryletherketone, and then performing melt blending, extrusion, and granulation to obtain a first material; S3, uniformly mixing a conductive filler and polyaryletherketone, and then performing melt blending, extrusion, and granulation to obtain a second material; S4, mixing the first material and the second material according to a proportion, and then performing melt blending, extrusion molding or granulation to obtain a conductive and electromagnetically shielding polyaryletherketone-based composite material; the composite material of the invention has significant electromagnetic shielding effectiveness and excellent comprehensive mechanical properties.

The invention provides a liquid viscosity measuring device and method.The device comprises a measuring container used for containing liquid to be measured, the top face of the measuring container is in a cone shape extending outwards, a closed control cavity is formed in the top end of the measuring container, and the inner diameter of the control cavity is smaller than the diameter of a measuring steel ball; the measuring steel ball is arranged in the measuring container; the rotating mechanism is used for driving the measuring container to rotate by 180 degrees around the horizontal axis of the measuring container, so that the measuring container is switched between an upright state and an inverted state; one end of the control cavity is directly communicated with the interior of the measuring container, the other end of the control cavity is communicated with the interior of the measuring container through a first pipeline provided with a first stop valve, and the other end of the control cavity is further provided with a pressure relief device used for adjusting the internal pressure of the control cavity. According to the invention, the ball falling time can be accurately measured, so that the liquid viscosity measurement precision is improved.

The utility model relates to vehicle sensor technical field, and disclose a kind of vehicle over-the-horizon obstacle detection device. Including vehicle body, it is characterized in that, still include: fixed mounting frame, radar signal processing module, millimeter wave radar, the vehicle body bottom is fixedly installed with fixed mounting frame, the inboard of fixed mounting frame is fixedly installed with radar signal processing module, the inboard of fixed mounting frame is fixedly installed with millimeter wave radar, the fixed mounting frame contains frame main body, the frame main body both sides symmetry fixed mounting have steerable wide-angle camera, the steerable wide-angle camera, one end fixed mounting have evenly distributed fifteen mounting frame door, it is favorable to provide impact resistance and anti-deformation mechanical protection, ensure the security of internal precision component under bad road condition, and the mounting frame door installed thereon uses quick release design to facilitate maintenance replacement.

This utility model discloses a rotating card holder with a function to isolate mutual interference between two card signals. It includes two flaps, each rotatably mounted in a receiving groove via a rotating shaft. An anti-interference plate is fixedly installed between the two receiving grooves on the card holder body. A rectangular opening is formed on the surface of each flap, and a leather card holder is fixedly installed within the opening. An elastic locking mechanism is installed on the front side of the card holder body to lock the two flaps. This utility model card holder has two rotatable flaps. When a card is inserted into the card slot near the outer side of the leather card holder, the elastic locking mechanism ensures a stable connection between the flaps and the card holder body, preventing the card from falling out of the card slot. The anti-interference plate absorbs circuit noise and eliminates electromagnetic interference, preventing mutual interference between the signals of the two leather card holders and ensuring that the signals of the inductive cards can be read smoothly.

The present invention relates to the field of antenna image processing technology, and is a method and system for controlling an antenna support frame based on image detection in an electromagnetic environment, comprising: constructing a support frame control system, using the support frame control system to obtain an original received signal set and an antenna operation image, identifying the antenna key parts of the antenna operation image to obtain a candidate grayscale image group, determining a target support frame image and a target antenna image in the candidate grayscale image group, and obtaining a signal stability factor based on the original received signal set. If the signal stability factor is less than a standard stability factor, the antenna azimuth is controlled to obtain an adjustable support frame, and the above steps are repeated until the signal stability factor is not less than the standard stability factor. The present invention can improve the accuracy and efficiency of antenna support frame control.

This application relates to the field of household appliance technology, and in particular to a refrigerator pressure switch and a refrigerator. A refrigerator pressure switch includes: a pressure switch assembly and a pressure transmission assembly. The pressure switch assembly is disposed on the refrigerator body; the pressure transmission assembly includes a base and a button. The base is mounted on the refrigerator body, the button is located on the base and sealed to the base, and the end of the button away from the base is disposed against the refrigerator door. The button and the base enclose a cavity, and the cavity is connected to the pressure switch assembly. The button retracts the base in response to displacement of the refrigerator door, forcing gas in the cavity into the pressure switch assembly, causing a pressure change within the pressure switch assembly. The pressure switch assembly responds to the pressure change to control the opening of the refrigerator door. This application, by additionally providing a pressure transmission assembly, can prevent condensation from occurring on the pressure switch assembly.

The invention relates to the technical field of vehicle-mounted communication, in particular to a vehicle-mounted network architecture, a signal transmission method and a vehicle, and the vehicle-mounted network architecture comprises a plurality of area controllers and a vehicle control platform; the plurality of area controllers are all in direct communication connection with the vehicle control platform through a power line, and any area controller is at least in direct communication connection with another area controller through a power line, so that a plurality of transmission paths are arranged between any area controller and the vehicle control platform; and the vehicle control platform is used for determining a target transmission path for signal transmission and / or power transmission according to the state of each transmission path, so that the stability of vehicle-mounted communication and power supply is improved.

The present application relates to the technical field of spacecraft propulsion system, and more particularly to a micro-newton hybrid mode propulsion system and method based on gas working substance. The system comprises a gas storage unit, a gas supply unit, a thruster unit and a propulsion system driving and control unit. The gas storage unit adopts symmetrically arranged high-pressure gas cylinders connected through high-pressure isolation valves, and in combination with the automatic balancing strategy of the control unit, effectively solves the problem of on-orbit centroid drift. The gas supply unit includes parallel cold gas propulsion branches and electric propulsion branches, and each branch adopts a mechanical pressure reducer to eliminate vibration and noise caused by electromagnetic valve action from the source, realizing super-static operation of the system. The propulsion system driving and control unit controls the micro-newton cold gas thruster and the micro-newton electric thruster to work alone or in cooperation according to the distribution strategy based on the thrust critical point, realizing the optimal comprehensive efficiency of high precision and high specific impulse in the full thrust range, and being suitable for ultra-high precision space scientific exploration missions.

The invention discloses an unmanned aerial vehicle hanging heavy load mechanical ground wire installation device, and belongs to the technical field of unmanned aerial vehicle application, the unmanned aerial vehicle hanging heavy load mechanical ground wire installation device comprises an unmanned aerial vehicle and a rope, the rope is connected below the unmanned aerial vehicle, a lifting hook is installed below the rope, a battery is arranged in the unmanned aerial vehicle, and a supporting frame is installed at the bottom of the unmanned aerial vehicle. According to the invention, by combining the unmanned aerial vehicle and the mechanical device, the installation time of the grounding wire is greatly shortened, and the installation can be completed within 40 minutes generally, so that the working efficiency is improved. The number of required operators is reduced, the labor cost is reduced, the physical output of the operators is reduced, and fatigue and potential accidents caused by too long working time are avoided. The device is suitable for ground wire installation in various complex environments, is not influenced by electromagnetic interference and distance, and has a wide application range and strong practicability.

The application discloses a device and method for collecting 120-channel I2C data, which comprises a main control board and 24 sub-control boards with the same structure and connected with the CPU of the main control board. After the system is powered on, the main control board groups the 120-channel I2C data to be collected, accesses the I2C data collection of the specified address through the I2C interface of the system, or collects the 120-channel I2C data according to the polling sequence set by the software, collects the temperature, voltage and power information data in each channel of the I2C data, and completes the local reporting or remote reporting, thereby successfully completing the collection and reporting functions and not causing electromagnetic interference to other high-speed signals processed and transmitted in the system. The device has simple structure and low cost. The method is convenient to operate, can avoid the electromagnetic interference of the multi-channel I2C data collection to other signals in the complex circuit system, and can improve the efficiency and quantity of data collection.