42 results about "Interference protection" patented technology

The invention relates to the related technical field of dust detection, and provides a mining induced charge and light scattering fusion dust detection device and method.The dust detection device comprises a workbench, a sampling assembly and a detection assembly, and the sampling assembly comprises a sampling air pump, a conical airflow homogenizer and a closed sampling cavity; the detection assembly comprises an annular sliding rail, a light scattering detection module and an electrostatic induction detection module; the dust detection method comprises the following steps: S1, device initialization and zero calibration; s2, sampling preparation of dust-containing airflow; s3, dual-module synchronous signal acquisition; s4, data processing and temperature and humidity compensation; s5, carrying out anti-interference protection assembly; and S6, data fusion and result output. S7, device cleaning and standby; through cooperative work of the double detection modules, dust detection signals in different concentration intervals are accurately captured, wide-range coverage from low concentration to high concentration is achieved, and synchronous monitoring of dust concentration and particle size characteristics is achieved.

The invention relates to the technical field of energy consumption control, and discloses a computing power equipment energy consumption optimization self-adaptive control method and system and a program product, and the method comprises the steps: obtaining an initial operation environment parameter set of computing power equipment; based on the initial operation environment parameter set, calculating through a data fusion algorithm to obtain a target environment evaluation value; based on the initial operation environment parameter set and the target environment evaluation value, determining a temperature control mode and an anti-interference protection mode of the computing power equipment; controlling a temperature adjusting device to adjust the temperature of the computing power equipment by using the temperature control mode to obtain a temperature adjusting result of the computing power equipment; an anti-interference protection mode is utilized to control the protection device to adjust external disturbance of the computing power equipment, and an interference adjustment result of the computing power equipment is obtained; and controlling the energy consumption and redundancy management module to adjust the energy consumption and redundancy of the computing power equipment by using the temperature adjustment result and the interference adjustment result to obtain an energy consumption optimization self-adaptive control result of the computing power equipment, thereby realizing self-adaptive energy consumption optimization.

The present application relates to a kind of arch trolley and its arm frame anti-interference control method, scheme is through judging the angle difference of pitch direction between any two arm frames, in the case where the angle difference of pitch direction between two arm frames is less than set angle, when one of the arm frames reaches the interference region relative to another arm frame, the movement of the arm frame is limited;The interference region is, when one of the arm frames is rotated to another arm frame direction, the region after reaching the critical position where the interference between two arm frames occurs.The scheme of the present application makes the arm frame limit control more flexible, easy to adjust, can realize the dynamic limit of arm frame anti-interference between arm frames during arm frame operation, realizes the anti-interference protection during the use of arm frame, effectively improves the safety and support efficiency of tunnel construction, and provides safety guarantee for the intelligent control such as remote control and remote control of arch trolley.

The invention provides a transient interference protection device integrating protection and filtering functions. Belongs to the technical field of passive protection devices, electronic equipment electrostatic protection and electromagnetic interference suppression. The device comprises a functional TVS diode module, an L-C filter network module and a three-pin packaging structure which are integrated integrally, and the design and manufacturing process of the device comprises the following steps: carrying out characteristic analysis on a direct-current power supply port to obtain a port signal transmission frequency range and transient interference (including surge and static electricity) type data; functional consideration is carried out on junction capacitance characteristics of the TVS diode, TVS junction capacitance parameters matched with port characteristics are designed, and functional TVS diode module design data are generated; a functional TVS diode and an L-C filter network are integrated, a traditional discrete device combination is replaced, the space occupation of a circuit board is reduced, the component purchasing and assembling cost is reduced, the integration degree of the whole machine is greatly improved, and schematic diagram design and layout are simpler and more efficient.

The utility model relates to the technical field of factory chemical instrument, especially a factory anti -interference protection device and system. Factory anti -interference protection device, fixedly arranged in the outside of instrument body, include, support subassembly, including fixedly arranged in the lower side of the connecting pipe of instrument body, fixedly arranged in the support pipe of connecting pipe lower extreme, the connecting pipe with support pipe each other vertical, first sleeve, set up in the outside of damping assembly and its upper end with shell screw thread cooperation, the damping assembly, including fixedly arranged in the second sleeve of support pipe upper end outer wall, set up between first sleeve and the elastic member of second sleeve. The device can effectively reduce the influence that various high -voltage electrical equipment, high -voltage switch etc. produce strong magnetic field change to instrument sensor, has guaranteed the stability and reliability of on -the -spot instrument, the setting of apron makes the device whole convenient dismounting and overhauling, can be applicable to multiple types of instrument.

The application belongs to the technical field of communication interference protection, and specifically discloses a cross-time-scale interference cancellation real-time decision system, wherein a radio frequency quadrature receiving module is used for receiving interference and communication mixed signals in space, processing and digitizing the interference and communication mixed signals, and obtaining digital baseband signals of multiple IQ two-way channels; a parallelization multi-domain fusion cancellation algorithm module is used for suppressing interference signals in the digital baseband signals of the multiple IQ two-way channels through multiple cancellation algorithms, and obtaining cancellation output signals corresponding to the multiple cancellation algorithms respectively; a cancellation effect real-time evaluation module is used for performing interference detection on the cancellation output signals corresponding to the multiple cancellation algorithms respectively, and obtaining evaluation results corresponding to the multiple cancellation algorithms respectively; and a cancellation algorithm real-time decision module is used for determining an optimal cancellation algorithm in the multiple cancellation algorithms based on the evaluation results corresponding to the multiple cancellation algorithms respectively, and outputting a cancellation output signal corresponding to the optimal cancellation algorithm.

This invention discloses a control system and its circuit based on dual-axis electromagnetic brake drive, including a power supply and protection unit, a dual-axis brake drive unit, a dual-axis brake detection unit, and a drive isolation unit. Through the synergy and combination of the above units, four key technologies are formed: integrated symmetrical dual-axis drive, dual-signal redundant enable logic, isolated precision monitoring, and multi-level anti-interference protection. These technologies work together to overcome bottlenecks and achieve the goals of high-precision, high-reliability, and high-safety control. Its advantages include: (1) The symmetrical dual-channel architecture significantly reduces the timing deviation of dual-axis braking, improving positioning accuracy and equipment stability; (2) The innovative redundant logic can achieve PLD-level safety and eliminate the risk of over-cutting; (3) The use of an isolated detection unit greatly improves voltage sampling accuracy and anti-interference; (4) The circuit structure of the multi-level protection network is adaptable to more complex industrial environments.

The utility model relates to the technical field of capacitive touch screens, in particular to a capacitive touch screen structure with an anti-interference function, which comprises a frame body, a clamping plate is fixedly mounted on one side of the frame body, a clamping groove is arranged on the clamping plate, an overflow groove is arranged on one side of the frame body close to the clamping plate, and the overflow groove is communicated with the clamping plate. Tempered glass is fixedly installed on the side, away from the overflow groove, of the frame body, an insulating film is fixedly installed at the joint of the tempered glass and the frame body, a display mechanism is arranged in the frame body and comprises first OCA, the first OCA is fixedly installed in the frame body, the tempered glass is fixedly installed on one side of the first OCA, and the second OCA is fixedly installed on the other side of the frame body. Impedance loss is reduced through the ITO layer assembly, backlight energy consumption is reduced through the light guide plate, the overall service life is prolonged through self-repairing of the self-repairing insulating layer, the dynamic shielding film, the self-repairing insulating layer and the metal back plate are integrated through the OCA glue assembly to be grounded in a multi-point mode, triple anti-interference protection is achieved, and the service life is prolonged. And the touch precision and the display stability are still kept in a complex electromagnetic environment.

The application relates to a compliance non-intrusive industrial control firmware over-extraction method. The method comprises the following steps: collecting physical signals of an industrial control device in operation through a non-contact sensor, analyzing and positioning a triggering time of a firmware protection mechanism in combination with a compliance constraint model, wherein the compliance constraint model comprises a fault injection power constraint, a firmware extraction time length constraint and an electromagnetic interference intensity constraint; according to the positioned protection mechanism triggering time, injecting a fault signal into the industrial control device to interfere with the operation of the protection mechanism, so as to realize bypassing of the protection mechanism; establishing communication with a storage chip of the industrial control device through a non-contact interface, and reading firmware binary data in the storage chip; and processing the firmware binary data to obtain firmware data that can be used for security evaluation. The non-contact collection and communication realize non-damage extraction of the device, the compliance constraint model guarantees industrial environment adaptability, and precise protection bypassing and efficient data processing improve extraction efficiency and compatibility.

The utility model relates to communication network protection technical field, and disclose a kind of communication network anti-interference protection device, including equipment shielding protection mechanism, self-adapting heat dissipation mechanism, flow type auxiliary heat dissipation mechanism, wire harness auxiliary shielding mechanism, equipment shielding protection mechanism includes metal shield, metal shield is equipped with mounting groove, metal shield two end side edge lower middle part is equipped with slot, utilize the metal material quality of metal shield.The utility model is equipped with mounting groove on metal shield, and the electromagnetic shielding space is constructed using high-strength metal material quality by the metal shield of equipment shielding protection mechanism, the shielding wire shell of wire harness auxiliary shielding mechanism is combined, and the communication wire harness is shielded, from equipment main body to wire harness all-around block outside electromagnetic interference, improve communication network anti-interference ability, and shielding wire shell and metal shield are adapted to be connected by slot, guarantee the linking stability of overall protection structure.

The utility model relates to the technical field of equipment cabinets, and discloses an electromagnetic shielding equipment cabinet, which comprises an equipment cabinet, a top cover, a cabinet door and a sealing element, the top cover is fixed on the equipment cabinet, the side part of the top cover is provided with an exhaust groove, and after the temperature generated in the equipment cabinet is specially processed by the top cover, on the premise of ensuring the electromagnetic shielding effectiveness, the electromagnetic shielding efficiency is improved. A necessary heat dissipation channel is provided for internal equipment of the cabinet, a frame is fixed in the cabinet, the front side of the cabinet is rotatably connected with a cabinet door, the cabinet door is movably connected in the frame, and the cabinet door is matched with a door frame at the front side of the cabinet. When the cabinet door and the cabinet are closed, the first electromagnetic shielding strip on the inner side is tightly attached to the inner side and the outer side of the side plate through clamping of the first sealing frame and the side plate, so that protection measures are improved on the basis of anti-electromagnetic interference of a traditional cabinet, meanwhile, the second sealing frame is attached to the frame, the second electromagnetic shielding strip is tightly attached to the frame, and the anti-electromagnetic interference performance of the cabinet is improved. Therefore, double-layer anti-interference protection measures are realized, and the electromagnetic shielding capability of the electromagnetic shielding cabinet is remarkably improved.

The invention belongs to the technical field of aerial cableway detection equipment, and particularly relates to a ray detection device for an aerial cableway based on an unmanned aerial vehicle. Comprising an unmanned aerial vehicle body, an unmanned aerial vehicle control terminal, a cold cathode X-ray detection host, a cold cathode X-ray emission module, a cold cathode X-ray detection module, a first wireless signal transceiver module and a second wireless signal transceiver module, the bottom end of the unmanned aerial vehicle body is fixedly connected with a mounting bracket, and the bottom end of the mounting bracket is fixedly connected with a horizontal moving mechanism. According to the high-altitude ropeway nondestructive testing system, efficient, stable and high-precision nondestructive testing of the high-altitude ropeway is completed through full-process cooperative work of airborne end accurate in-position, high-altitude ropeway rigid limiting, autonomous moving scanning, synchronous cleaning protection, real-time imaging detection, airflow interference protection and data wireless return, and the high-altitude ropeway nondestructive testing system is adaptive to outdoor high-altitude complex working environments; the core problems of tedious operation, weak anti-interference capability, poor imaging stability, incomplete detection coverage and the like in the prior art are solved.

The utility model relates to the technical field of vehicle-mounted wire harnesses, in particular to an electromagnetic shielding vehicle-mounted wire harness, which comprises a wire main body, the wire main body comprises a battery cell, the outer wall of the battery cell is wrapped with a first insulating sheath, the outer wall of the first insulating sheath is wrapped with a single woven shielding layer, and the outer wall of the single woven shielding layer is wrapped with a second insulating sheath. The outer wall of the single braided shielding layer is wrapped with a second insulating sheath, and the single braided shielding layer is used for shielding low-frequency interference of the battery cell; the contact piece terminals are electrically connected to the two ends of the electric wire main body respectively; and the shielding sheath wraps the outer part of the electric wire main body, and the shielding sheath is used for high-frequency interference shielding of the electric wire main body. According to the utility model, the single braided shielding layer and the rubber sheath are wrapped outside the traditional wire, so that the low-frequency anti-interference performance of the wire can be improved, and meanwhile, the shielding sheath is jointly wrapped outside the plurality of wires, so that the high-frequency anti-interference protection of the wire is further realized.

The invention discloses a double-coil charging method and device which are applied to a charging system comprising a double-coil charging end and a charging receiving end. A charging receiving end tracks and attenuates electromagnetic interference signals of a charging link through self-adaptive processing, a double-coil charging end distributes independent signal transmission time periods of a transmitting coil of the double-coil charging end through a multiple access technology, and meanwhile useful charging signal transmission frequency bands are dispersed through a spread spectrum technology. And generating a disturbance signal to randomize the carrier phase of the useful charging signal. The double-coil charging end continuously monitors the charging state and the electromagnetic environment change, and cooperatively adjusts the anti-interference parameters of the two parties to adapt to the dynamic interference scene. According to the method, a multi-dimensional anti-interference protection system is constructed, signal conflicts among coils and external interference are effectively avoided, coherence between interference signals and useful charging signals is effectively prevented from being damaged, signal transmission and receiving stability is guaranteed, active adaptation to a complex electromagnetic environment is achieved, and reliable charging of robots in hotels, hospitals, shopping malls and other scenes is guaranteed.

The invention provides a canal ship high-precision trajectory reconstruction and collision risk dynamic prediction device, which comprises a multi-source data acquisition module, a high-precision trajectory reconstruction module, a collision risk dynamic prediction module, a main control and communication module and an early warning output and man-machine interaction module, a video image acquisition unit in the multi-source data acquisition module comprises a multi-mode sensing tower main body, the top end of the multi-mode sensing tower main body is fixedly connected with a mounting seat, a damping box is fixedly connected above the mounting seat, a vertical block is arranged above the damping box, a first servo motor is fixedly mounted at the bottom of the vertical block, and a second servo motor is fixedly mounted at the bottom of the vertical block. And a damping assembly is arranged between the bottom of the first servo motor and the damping box. Interference of ship vibration, wind power and the like is effectively counteracted through the damping assembly of the multi-mode sensing tower, automatic lens cleaning is achieved through the protection cleaning assembly, it is ensured that video images are clear in the rain, fog and dust environment, and the problem that performance of traditional video equipment is reduced in severe weather is solved.

This application discloses a motor anti-interference protection circuit based on relay-based high-voltage control, relating to the field of industrial motor control technology. By connecting a 220V AC relay module to the output of the motor protector, low-voltage control is upgraded to high-voltage control, and an independently wired 220V AC current control circuit drives an AC contactor. This solution utilizes the high noise immunity of the 220V high-voltage signal and the physical isolation effect of the relay to completely solve the signal distortion problem caused by electromagnetic interference in traditional motor protection, while maintaining compatibility with the original protector's functions. It has low modification costs and is suitable for anti-interference retrofitting of industrial motor control systems.

The invention discloses a pattern sewing machine auxiliary device for garment production, and relates to the technical field of pattern sewing machines, the pattern sewing machine auxiliary device comprises a workbench, the workbench is fixedly provided with a slide rail rod through an electric telescopic rod, and the slide rail rod is slidably provided with a control block. Through cooperation of the first torsion spring, the shifting rod and the shifting fork, the upper die automatically rotates to avoid a machine needle track at the last sewing stage, the needle breaking risk is fundamentally eradicated, by means of a flexible pressing structure of the pressing block and the spring piece, the fixing requirements of small standard pieces with different thicknesses are met, the standard pieces are prevented from being crushed or shifted, and the production efficiency is improved. The oblique angle of the push rod triggers rigid connection with the clamping assembly, synchronous sliding of the control block and the moving piece is achieved, it is ensured that the label piece and lining cloth are accurately sewn according to a preset track, automatic operation and anti-interference protection of the clothes label nailing process are achieved, the problems of potential safety hazards caused by manual pressing of the label piece and needle breakage caused by collision of a machine needle to an upper mold are effectively solved, and the production efficiency is improved. And a turning rod is matched with a second torsional spring, so that the standard parts are prevented from sliding off during feeding, and finished products can be conveniently taken out.

The invention discloses an electromagnetic environment detection system and method for a blade server. The electromagnetic environment detection system comprises a conducted interference monitoring board integrated in the server. The conducted interference monitoring board comprises an interference extraction unit, a single-chip microcomputer and a state indicating lamp. The input end of the interference extraction unit is connected with a live wire and a zero wire of a power supply filter in a server case, and extracts an electric signal representing conducted interference intensity from a power supply line; the single chip microcomputer performs digital signal processing on the electric signal, compares an obtained interference comprehensive value with a preset threshold value, and judges the state grade of electromagnetic interference; the state indicating lamp is connected with a GPIO port of the single-chip microcomputer and indicates corresponding interference states in different flicker modes. Real-time monitoring, intelligent evaluation and graded early warning of conducted interference of a power supply line are achieved, passive post-restart emergency processing is converted into active pre-interference protection, and stable operation of a blade server and continuous execution of key tasks under the maneuvering deployment condition are effectively guaranteed.

The invention relates to the field of material control, in particular to a feeding control system which comprises a multi-scale detection module for acquiring material particle size distribution and weight data in real time, an impact force resistance sensing system arranged at the bottom of a weighing hopper for detecting and processing impact, and a digital twin fusion engine coupled with the multi-scale detection module and the impact force resistance sensing system. The self-adaptive control module receives output signals of the system to adjust PID control parameters in a grading mode, the executing mechanism responds to instructions to adjust the material conveying speed and the material flow path, and the system further comprises multiple structures and mechanisms such as a triple detection framework, a specific impact recognition circuit and a discrete element behavior model. The system achieves the effects of high-precision detection of material data, effective response to impact load, realization of virtual and real data interaction and synchronization, self-adaptive adjustment of control parameters according to material fluidity, precise adjustment of material conveying and material flow paths, fault self-healing, anti-interference protection and the like, and improves the accuracy, stability and reliability of feeding control.

The invention discloses an anti-interference DCDC power supply protection method and system, relates to the technical field of power electronic control, and is used for solving the problem of poor anti-interference protection of a DCDC power supply. A closed-loop control mechanism integrating sampling anti-interference, fault judgment, tentative verification, hierarchical protection and parameter self-tuning is constructed, in the aspect of interference suppression, four-end Kelvin connection and independent sensing are adopted, a blank time and fragment screening strategy is matched, the sampling stability is improved, and in the aspect of fault recognition, the fault recognition efficiency is improved on the basis of a Boolean rule chain. Effective event judgment is achieved, interference false alarm is verified through current limiting or frequency turn-back in the tentative stage, false triggering is avoided, state machine hierarchical control is adopted in protection response, smooth migration and rapid isolation are achieved, soft start with pre-bias recognition and back-off stepped retry are introduced in the recovery process, and the recovery efficiency is improved. And on-line small-step self-tuning and rollback are carried out on key control parameters, so that the anti-interference performance, the control precision and the long-term stability of the DCDC power supply are effectively improved.

A reinforced needle hub disc and a pre-filled syringe. The reinforced needle hub disc is used for mounting a needle and is in communication with a syringe barrel (1) of the pre-filled syringe to allow liquid flow. The reinforced needle hub disc comprises a disc body, a distal side of the disc body having a planar surface; and a spacing step (202), arranged on a distal side surface of the disc body and used for lifting a protective cap (5). The spacing step (202) comprises spacing ribs (202a) and stop ribs (202b). The spacing ribs (202a) are arranged along the diameter of the distal side surface of the disc body, and the stop ribs (202b) are arranged on both sides of the spacing ribs (202a). The spacing ribs (202a) can separate the position of a protective shield (401) from the position of the protective cap (5), so that accidental triggering of the sliding of the protective shield (401) can be avoided when the protective cap (5) is pulled off. This can reduce the risk of misoperation, ensuring that an operator can safely pull off the protective cap (5) without interfering with the position of the protective shield (401). Moreover, the arrangement of the stop ribs (202b) can reduce the tilting angle of the protective shield (401) when the protective shield (401) exhibits or tends to exhibit lateral tilting, thereby preventing radial dislodgment.

The invention relates to a relay switching-on and switching-off control method and system, and relates to the field of relay control. Obtaining a load current value; when the control state of the relay is a closed state and the load current value does not exist, outputting a relay non-closed signal; when the relay control state is an off state and a load current value exists, outputting a relay non-off signal; when the relay non-closing signal or the relay non-opening signal exists, the current relay control frequency is determined; acquiring the movement distance of the small ball; determining a current magnetic field force based on the movement distance of the small ball; and when the current magnetic field force is greater than the maximum magnetic field force threshold, executing an anti-interference protection operation. According to the invention, relay switching-on and switching-off continuity abnormity caused by strong magnetic field interference can be accurately identified, indifference protection on instantaneous self-calibrated accidental deviation is effectively avoided, and pertinence and reliability of relay control are improved.

The application provides a method and system for ionospheric scintillation interference protection in meteorological satellite ground data reception, and relates to the technical field of meteorological satellites, which comprises the following steps: real-time correlation identification of the elevation angle and azimuth angle data of a satellite receiving station antenna and matched ionospheric scintillation index elevation angle and azimuth angle data, generation of risk warning information of different grades by comprehensively considering the elevation angle and azimuth angle correlation of the satellite receiving station antenna and the ionospheric scintillation index risk; intelligent decision-making based on the risk warning information; intelligent adjustment of the ionospheric scintillation risk index identification inspection cycle according to the intelligent decision-making; and intelligent command and dispatch of the satellite ground station for ionospheric scintillation protection in the intelligent protection working state. The application can improve the reliability and anti-interference capability of satellite-ground communication.

The application provides a non-stationary satellite shipborne moving target indicator (MTI) interference protection method and device for a 5G base station, and the method comprises the following steps: obtaining a probability distribution of a discrimination angle; the discrimination angle is obtained according to the position of the shipborne MTI, the position of the 5G base station and the position of an access satellite; the interference protection distance of the 5G base station is calculated based on the probability distribution of the discrimination angle and the static protection range of the 5G base station; and the transmission power of the current shipborne MTI is adjusted when the distance between the current shipborne MTI and the 5G base station is less than the interference protection distance. The interference protection distance of the 5G base station under the condition of a non-stationary satellite is obtained first, and then the transmission power of the current shipborne MTI is adjusted when the distance between the current shipborne MTI and the 5G base station is less than the interference protection distance, so that the same-frequency interference generated by the current shipborne MTI on the 5G base station in the Ka frequency band can be reduced, and the shipborne MTI and the 5G base station can communicate in the same frequency and coexist under the condition of less interference on the 5G base station.

The invention relates to a compliance non-intrusive industrial control firmware unauthorized extraction method. Comprising the steps that physical signals during operation of industrial control equipment are collected through a non-contact sensor, the triggering moment of a firmware protection mechanism is analyzed and positioned in combination with a compliance constraint model, and the compliance constraint model comprises a fault injection power constraint, a firmware extraction duration constraint and an electromagnetic interference intensity constraint; according to the positioned protection mechanism triggering moment, a fault signal is injected into the industrial control equipment to interfere operation of the protection mechanism, and bypassing of the protection mechanism is achieved; establishing communication with a storage chip of the industrial control equipment through a non-contact interface, and reading firmware binary data in the storage chip; and processing the firmware binary data to obtain firmware data which can be used for security assessment. Non-damage extraction of the equipment is realized through non-contact acquisition and communication, the adaptability of the industrial environment is guaranteed through a compliance constraint model, and the extraction efficiency and compatibility are improved through accurate protection bypassing and efficient data processing.

This information processing system includes an information processing device and a plurality of communication devices. The information processing device acquires a wireless access method for each of the plurality of communication devices, acquires a first priority indicating the priority of the wireless access method, and executes interference protection processing for distributing an interference margin to each of the plurality of communication devices on the basis of the wireless access method and the first priority.

The utility model relates to an anti -interference power device, including lower shield case, lower shield case top is equipped with the opening, the inside insertion of opening has the inner shield case, the both sides bottom of inner shield case all are equipped with recessed groove body, the top of inner shield case is fixed with upper shield case, and the surface of inner shield case is provided with anti -joint electromagnetic leakage subassembly, the utility model discloses the lower shield case and upper shield case establish basic anti -interference barrier for electric device, and the inner shield case of lower shield case bottom setting can insert in, and the multi -layer anti -interference protection is formed in cooperation, effectively blocks the outside electromagnetic interference, and a plurality of metal springs and contact piece are arranged at the joint of the outer portion of inner shield case, ensure that the joint place continuous conduction, and the high -frequency interference penetration probability is reduced greatly.

The application discloses an industrial controller hardware adaptive anti-interference protection system, and relates to the technical field of electromagnetic protection of industrial controllers.The system comprises a layered partition isolation type electromagnetic protection hardware architecture, an interference characteristic adaptive signal conditioning circuit, a multi-stage integrated anti-surge protection circuit and a hardware channel real-time self-checking and fault isolation mechanism.The layered partition isolation type electromagnetic protection hardware architecture is used for physically partitioning, independently shielding and layering grounding design of a controller main control unit, a power supply unit, a signal acquisition unit and a communication unit, so as to block internal circuit crosstalk and external electromagnetic coupling interference.The interference characteristic adaptive signal conditioning circuit is used for real-time monitoring of field interference frequency characteristics and amplitude characteristics, and for dynamically and adaptively adjusting filter bandwidth, signal amplification multiple and decision threshold.The multi-stage integrated anti-surge protection circuit is used for forming a multi-layer protection barrier against lightning transient high voltage, power grid pulse disturbance and electrostatic impact.The hardware channel real-time self-checking and fault isolation mechanism is used for real-time identification of signal conditioning circuit abnormal states and interference exceeding channels, automatic marking and isolation of fault channels.

This application provides a CAN FD communication circuit and vehicle-mounted equipment, relating to the field of electronic circuit technology. It solves the problem that communication circuits in related technologies are difficult to meet the communication requirements of vehicle-mounted conditions under high voltage and strong interference. This circuit uses multi-level anti-interference protection to make it difficult for external interference to affect data communication. It also sets ground isolation to isolate ground potential and avoid common-mode interference caused by ground potential difference. Moreover, this circuit can be used as a communication circuit at the interface of vehicle-mounted equipment for connecting other devices via CAN bus. It provides anti-interference protection to meet the ISO 11898-2 automotive-grade electromagnetic compatibility standard, and achieves accurate compensation of terminating resistor and isolation of ground interference, thereby improving the anti-interference capability of data transmission and meeting the communication requirements of vehicle-mounted conditions under high voltage and strong interference.

The utility model discloses a display screen structure and an intelligent watch. The display screen structure comprises a chip assembly; the insulating glue wrapping layer wraps the outer side of the chip assembly; the insulating tape covering layer covers one side of the insulating tape wrapping layer; the conductive cloth shielding layer covers the insulating tape covering layer, and the conductive cloth shielding layer is located on the side, away from the insulating glue wrapping layer, of the insulating tape covering layer. According to the embodiment of the invention, the insulating glue wrapping layer, the insulating tape covering layer and the conductive cloth shielding layer are arranged on the chip assembly to form an anti-interference protection system, thereby effectively reducing the influence of the internal electromagnetic interference of the smart watch on the chip assembly, improving the display quality and stability of a display screen, and guaranteeing the normal operation of the smart watch.