155results about How to "Reduce signal interference" patented technology

An RFID tag interference solving method based on a density peak value clustering algorithm reduces signal interference between tags and improves reliability and identification precision of a system by dynamically adjusting priorities and time windows of RFID tags. The method comprises the following core steps: firstly, acquiring a label response signal through an RFID reader-writer; secondly, preprocessing the data, and removing noise and abnormal values; then, calculating the local density of the label signal, and identifying a density peak value region by using a clustering algorithm; then, reducing signal collision of tags in a high-density region by dynamically adjusting priorities and time windows of the tags in the region, and preferentially processing the tags; and finally, outputting a processed tag identification result. According to the invention, the problem of signal interference in a high-density RFID tag environment is obviously solved, the identification accuracy and the operation stability of the system are improved, and the method is suitable for various high-density tag application scenes.

The invention relates to the technical field of grounding monitoring, and discloses a multipath grounding monitoring method for an intelligent station electrostatic monitor, and the method comprises the steps: carrying out the infrared scanning of a station region, comparing a station layout template, obtaining the station configuration data, and reading an electrostatic monitoring parameter; performing time division multiplexing matrix design on the multiple monitoring channels to obtain a time division multiplexing configuration scheme; performing on-off control time sequence compilation on the high-speed solid-state relay to obtain an on-off control time sequence table, and executing intelligent on-off control to realize monitoring channel switching; inputting the electrostatic signals of the plurality of monitoring channels into a high-precision analog-to-digital converter for parallel sampling and de-noising processing to obtain pre-processed electrostatic data; according to the invention, the monitoring strategy can be dynamically adjusted according to the station characteristics, the efficient collection and processing of multichannel data are realized, and an accurate static risk assessment and early warning mechanism is provided.

The invention relates to the technical field of music sharing, and particularly discloses a music sharing method and system based on an intelligent Bluetooth headset and the Bluetooth headset. Comparing the working state signal interference evaluation parameters of each Bluetooth earphone with a working state signal interference evaluation parameter threshold value of the Bluetooth earphone, and if the working state signal interference evaluation parameter of a certain Bluetooth earphone is greater than the working state signal interference evaluation parameter threshold value of the Bluetooth earphone, switching a working channel of the Bluetooth earphone; according to the method, the quality of each channel is evaluated, the to-be-adjusted Bluetooth headset is subjected to channel switching according to each channel switching reference index of the to-be-adjusted Bluetooth headset, and the working channels of the Bluetooth headset are dynamically switched, so that the Bluetooth headset can be helped to maintain stable connection, disconnection or unstable signal conditions are reduced, and the service life of the Bluetooth headset is prolonged. And the data transmission rate can be improved, and congestion is reduced.

The invention relates to the technical field of resource allocation, in particular to a multiband signal optimization control system for a user 5G communication terminal, and the system comprises a geometric structure modeling module which is based on a multiband radio frequency front end of the user 5G communication terminal, collects multiband signals, and obtains the signal intensity through an MIMO antenna. In the invention, the dynamic environment of 5G communication is optimized through an acquisition and analysis method, the adaptability of signal processing is improved by utilizing real-time analysis of geometric structure data and topological characteristics, and the system is allowed to adjust the signal strength and frequency band use according to real-time data, so that the accuracy and efficiency of signal transmission are improved, and the system is suitable for popularization and application. Potential signal offset can be foreseen and adjusted in advance by evaluating the stability and variation trend of the signal, the communication quality is ensured not to be affected, and the adaptive capacity and predictive adjustment to the dynamic environment optimize the spectrum utilization rate and reduce the signal interference, especially in the environment with dense users and complex signals.

The invention discloses a signal optimization method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining an initial signal, and dividing an available frequency band of the initial signal into a plurality of sub-frequency bands; according to an interference evaluation model, obtaining interference degrees between different sub-frequency bands, and obtaining an interference evaluation result; dynamically adjusting a frequency range corresponding to each sub-band according to the interference evaluation result; wherein the interference evaluation model is constructed based on a support vector machine and / or a random forest. Therefore, a new signal optimization strategy can be provided, and the signals can be dynamically allocated to adapt to a dynamically changing signal environment.

The invention discloses a coal mine electromechanical operation fault real-time monitoring system and method, and the system comprises a multi-sensor module which obtains the multi-source information of the operation state of coal mine electromechanical equipment based on a multi-sensor fusion technology, and a signal processing module carries out the noise filtering processing of the multi-source information, so as to reduce the signal interference in a complex environment. The fault diagnosis module establishes a fault diagnosis model based on the filtered data to realize real-time monitoring of faults; the coal mine electromechanical operation fault real-time monitoring system and method solve the problems that in the prior art, the anti-interference capacity is limited, the reliability of data collection is insufficient, the fault monitoring effect is directly affected, how to reduce the interference degree through reasonable sensor layout and network transmission mechanism design, and in the algorithm level, the real-time monitoring of the coal mine electromechanical operation fault is achieved. The problems that an existing analysis method is limited in noise suppression capacity and the actual application effect of a monitoring system is limited are solved.

The invention discloses a control system of an SMT high-speed chip mounter based on EtherCAT, which takes a PC industrial personal computer as an EtherCAT master station, takes a cabinet comprehensive control card, an XY axis and head flight camera servo drive controller and a head Z axis and R axis servo drive controller as EtherCAT slave stations, and is characterized in that the master station is connected with each slave station in a series topology form of an EtherCAT bus; the multi-axis motion control system has the technical advantages of multi-axis motion control real-time performance, high data transmission rate and high whole machine intelligence at the same time, and more efficient and more accurate electronic component assembly is achieved.

The invention provides a manufacturing process optimization control method and system for electronic components of a main control board, and relates to the technical field of manufacturing process optimization, and the method comprises the steps: obtaining a historical manufacturing database of the electronic components in the main control board of a steering wheel; extracting a first historical record in the historical electronic manufacturing data records; analyzing the first manufacturing process record to obtain an optimal historical manufacturing scheme, and taking the optimal historical manufacturing scheme as an initial optimal solution; optimizing the initial optimal solution according to a first constraint in predetermined optimization constraints to obtain a first optimal candidate solution; performing optimization analysis on an optimal solution set established based on the first optimal candidate solution; and designing and manufacturing the multi-layer PCB for the electronic component according to the target optimal solution. According to the invention, the technical problem of signal interference caused by unreasonable wiring in the PCB design in the prior art can be solved, and the technical effects of improving the performance of the circuit board and enhancing the stability and reliability of the system are achieved.

The invention relates to a semiconductor structure and a preparation method thereof. The semiconductor structure comprises a substrate; a plurality of first isolation grooves and a plurality of second isolation grooves are formed in the substrate, the first isolation grooves extend in the first direction, the second isolation grooves extend in the second direction, and the first direction and the second direction are parallel to the substrate and intersect with each other; the plurality of first isolation grooves and the plurality of second isolation grooves jointly isolate a plurality of active columns arranged in an array. The plurality of active columns are arranged in a row along a first direction; a plurality of bit lines arranged at intervals; the bit lines are located below the active columns and extend in the first direction, and the active columns located in the same row are sequentially connected in series; a plurality of air gap structures; the air gap structures are located between the adjacent bit lines and located at the bottoms of the corresponding first isolation grooves. The semiconductor structure can improve the read-write speed of the memory, so that the memory has more excellent electrical performance.

The utility model provides a surface electromyogram signal acquisition device which comprises a signal acquisition module, a pre-amplification and filtering module, a control module, a power supply module and a signal emission module, and the acquisition end of the signal acquisition module is used for acquiring surface electromyogram signals of a contact object. The output end of the signal acquisition module is connected with the input end of the pre-amplification and filtering module, and the signal acquisition module is used for amplifying and filtering the acquired surface electromyogram signals; the power supply module is respectively connected with the pre-amplification and filtering module and the control module and is used for supplying power to the pre-amplification and filtering module and the control module; the output end of the pre-amplification and filtering module is electrically connected with the input end of the control module, and the pre-amplification and filtering module is used for carrying out secondary filtering processing on the processed surface electromyogram signals; the output end of the control module is connected with the signal transmitting module. Therefore, the problems that a surface electromyogram signal collector is high in power consumption, large in size and low in collection result accuracy are effectively solved.

The invention provides a power line carrier and wireless communication combined power data transmission method and system, and the method comprises the steps: collecting the operation data of terminal power equipment in real time through terminal collection equipment in a power distribution area, and adding a timestamp for the data; and the hybrid communication sub-equipment transmits the operation data with the timestamp to the hybrid communication main equipment of the substation by using the power line carrier. And after receiving the data, the main device calculates the communication distance between the power distribution area and the transformer substation according to the timestamp information, and selects a proper communication mode. And the master device continues to monitor and calculate the bit error rate, obtains parameters such as the signal-to-noise ratio, the attenuation value and the interference intensity of the communication channel, and inputs the parameters into the pre-trained support vector machine to predict the current bit error rate. And based on a prediction result, a communication distance, a load and other factors, a pre-trained reinforcement learning model is adopted to adaptively select an optimal communication mode, and the communication mode is dynamically adjusted to optimize a data transmission effect.

The utility model relates to a photoelectric connector assembly, which comprises a pin seat connector and a flange connector, and is characterized in that the pin seat connector comprises a pin seat connector body which is provided with at least one pin seat end ceramic ferrule and a plurality of first electrical holes; the printed circuit board is arranged on the pin seat connector body, and a second electric hole is formed in the position, opposite to the first electric hole, of the printed circuit board; each metal contact pin penetrates through the second electric hole of the printed circuit board and is arranged in the first electric hole of the pin seat connector body, and the aperture of the second electric hole is matched with the outer diameter of the metal contact pin; at least two metal pins in the plurality of metal pins are directly and electrically connected with the printed circuit board, and are electrically connected with an information storage chip arranged on the printed circuit board through the printed circuit board. The photoelectric connector assembly is convenient for reading information, and the reliability of electric connection is improved.

The invention belongs to the technical field of biological analysis, and particularly relates to nicking rolling circle amplification, self-loading multi-component nuclease (MNAzyme), a fluorescent RNA aptamer and application of the fluorescent RNA aptamer in miRNA detection. The invention provides an unmarked sensitive sensing platform, which is characterized in that cutting rolling circle amplification is integrated into a self-assembled multi-component nuclease (MNAzyme) and a fluorescent RNA (Ribonucleic Acid) aptamer, and the platform is used for monitoring miR-21. By utilizing the super-sensitivity, programmability and operability of the biosensing environment detection platform, the expression of miRNA in different breast cancer cells can be quantitatively detected, normal cells and different cancer cells can be distinguished, and the biosensing environment detection platform has huge potential in the aspects of biomedical research and clinical diagnosis.

The invention discloses an electromagnetic touch display panel, a manufacturing method, a display device and a driving method. The electromagnetic touch display panel in one embodiment comprises a display area, a non-display area and a binding area bound to the boundary of one side of the non-display area. The electromagnetic touch display panel comprises a substrate, a first electrode and a second electrode, the driving circuit layer is positioned on the substrate; the pixel layer is provided with a plurality of pixel openings; the packaging layer is positioned on one side, far away from the substrate, of the pixel layer; the capacitance touch control layer is positioned on one side, far away from the substrate, of the packaging layer; the electromagnetic touch integrated color film layer is located on the side, away from the substrate, of the capacitive touch layer and comprises a light filtering layer, and the orthographic projection of the light filtering layer on the substrate covers the orthographic projection of the pixel openings on the substrate; the orthographic projection of the electromagnetic touch layer on the substrate falls in the orthographic projection of the non-pixel opening of the pixel layer on the substrate, and the mutually attached surfaces of the electromagnetic touch layer and the capacitive touch layer are insulated.

The invention relates to the technical field of wafer testing, and provides a wafer testing method and device, a testing machine and a storage medium. Each probe in the probe card of the testing machine is provided with a probe group to which the probe belongs, and each probe and the probe at the adjacent position belong to different probe groups. The method comprises the following steps: firstly, obtaining a corresponding target signal sampling time point set according to a wafer model of a to-be-detected wafer; sequentially controlling each probe group to test the bare chip in the wafer to be tested in each test period to obtain a test result of each probe group; and finally, taking the test results of all the probe groups as the test result of one test period. By grouping the probes, the distance between the probes during testing is enlarged, and signal interference between different probes is reduced. Moreover, the influence of the performance difference of different testing machines on the wafer testing is reduced, and the stability and accuracy of the wafer testing are improved.

The ear sound screening device comprises an ear sound screening instrument and a plurality of bracelets, sensors used for sensing the physiological state are arranged on the inner side faces of the bracelets, clamping grooves are formed in the positions, corresponding to the sensors, of the outer side faces of the bracelets, bar codes are pasted in the clamping grooves, and interfaces are formed in the inner side faces of the clamping grooves. The interface is electrically connected with the inductor; the bottom face of the otoacoustic screening instrument extends outwards to be provided with two clamping parts, the two clamping parts are matched with the two sides of the strip-shaped groove respectively, the clamping parts are provided with pins used for being connected with the interfaces, the otoacoustic screening instrument is further provided with a processor, a printer, a code reader and a display screen, the printer, the code reader and the display screen are electrically connected with the processor, and the processor is electrically connected with the pins. The printer is used for printing bar codes, and an image acquisition lens of the code reader is correspondingly located between the two clamping parts. The otoacoustic screening instrument can print bar codes and record the bar codes, information can be directly obtained through code scanning, and meanwhile the physiological state sensed by the sensor can be recorded.

The invention discloses a portable Raman spectrum measuring device for petroleum heavy metal ion detection, which belongs to the technical field of petroleum exploitation and processing, and comprises a light source module, a wavelength modulation module, an excitation light path module, a confocal detection module, an imaging module, a data processing module, an image processing module, an automatic focusing module and a portable shell, the fiber bragg grating can accurately adjust the excitation wavelength, and the influence of wavelength deviation on the detection precision is reduced; the contrast ratio and the sensitivity of Raman signals can be effectively improved through multi-wavelength excitation and differential signal processing and a displacement excitation Raman differential spectrum technology; the device provided by the invention can effectively improve the portability, accuracy and experimental efficiency of Raman spectrum detection, is suitable for crude oil pollution detection requirements in oil exploitation and processing processes, and has a wide application prospect.

The invention provides a hybrid bonding structure and bonding method based on an interlocking structure, and the structure comprises a first chip to be bonded, which is provided with a silicon oxide layer and a first connecting piece protruding out of the silicon oxide layer; the second chip to be bonded is provided with a polyimide layer, a recess arranged in the polyimide layer and a second connecting piece arranged at the bottom of the recess, the surface of the second connecting piece is provided with a first adhesion layer, and the first connecting piece and the second connecting piece are made of copper and / or aluminum; the first chip to be bonded and the second chip to be bonded are configured as follows: before bonding, the height difference of the first connecting piece protruding out of the oxide layer is greater than the height difference of the top surface of the first adhesion layer and the top surface of the silicon oxide layer; the silicon oxide layer is connected with the polyimide layer, and the first connecting piece extends into the recess and is connected with the second connecting piece through the first adhesion layer to form an interlocking structure. The method is used for optimizing the performance of the hybrid bonding process and the bonding structure.

The application relates to a display panel, a preparation method thereof and a display device. The display panel comprises a substrate, an isolation structure, a plurality of light emitting devices, a plurality of first touch electrodes, a plurality of scan lines and a wiring structure on one side of the substrate. The isolation structure comprises a plurality of isolation openings and a plurality of touch openings. The plurality of light emitting devices are arranged in the plurality of isolation openings correspondingly. The plurality of first touch electrodes are arranged in the plurality of touch openings correspondingly. The plurality of scan lines are arranged in a first direction at intervals. Each scan line extends in a second direction. The first direction and the second direction intersect. The wiring structure is connected with a first power supply potential. The wiring structure comprises a plurality of first wires arranged in the first direction at intervals. A film layer where the plurality of first wires are located is between a film layer where the plurality of scan lines are located and a film layer where the first touch electrodes are located. The display panel performance can be improved by adopting the scheme.

The application discloses an enzyme-electron medium micro-nano composite for biosensing and a preparation method and application thereof. A dehydrogenase for electrochemical detection and an electron medium are jointly loaded in a cavity of a carrier, the carrier is contracted through chemical or physical stimulation, and electron medium molecules in the cavity are forced to be distributed around active centers of the dehydrogenase, so that a contractible limited microsphere structure is obtained. The enzyme-electron medium micro-nano composite obtained by the application can significantly improve a response current generated by unit enzyme catalysis, enhance the stability of the enzyme, and effectively prolong the service life of a sensor.

The utility model belongs to the voice interaction technical field discloses a kind of voice interaction devices, it includes sound entry box, sound entry component, sound exit box and sound exit component.Sound entry box is equipped with bunching structure, sound entry component includes microphone, circuit board and first wire, microphone is set to sound entry box, microphone is electrically connected in circuit board by first wire, sound exit box and sound entry box are set in split type, sound exit component includes loudspeaker and second wire, loudspeaker is set to sound exit box, and it is electrically connected in circuit board by second wire, bunching structure is configured as at least part first wire and / or at least part second wire is limited in sound entry box.By the above setting, the voice interaction device of the application can effectively bind cable and reduce the signal interference between microphone and loudspeaker.

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.

The utility model relates to the technical field of power supplies, and discloses a power supply device with an underneath storage location radiator, which comprises a transverse frame, a cabinet body shell and a needle bed power supply device main body, the cabinet body shell is clamped on the inner wall of the side surface of the transverse frame, the inner wall of the side surface of the cabinet body shell is fixedly connected with an electric control board main body, an adjusting mechanism is arranged on the transverse frame, and the needle bed power supply device main body is fixedly connected with the cabinet body shell. An auxiliary mechanism is arranged on the adjusting mechanism, the adjusting mechanism comprises a lap joint frame, the lap joint frame is fixedly connected to the outer wall of the rear side of the transverse frame, a sliding groove is formed in the inner wall of the top of the lap joint frame, and heat dissipation mounting frames are slidably connected to the inner walls of the left side and the right side of the sliding groove. According to the utility model, through the splicing frame structure in which the transverse frame, the longitudinal frame and the vertical frame are mutually fixed through threads, the layout can be flexibly adjusted according to the number of placed equipment, the space is effectively saved, and the occupied area is reduced; internal equipment is concentrated below the small radiator, a radiating path is optimized by utilizing the lower radiator, and a stable and uniform-temperature environment is formed.

The invention discloses a fault mode determination method and device and electronic equipment. The method comprises the following steps: receiving alarm information which is used for indicating that signal interference exists in at least one wireless network channel connected with an integrated access device (IAD); analyzing the alarm information to obtain a signal quality evaluation parameter which is used for evaluating the signal quality of the wireless network channel; the signal quality evaluation parameters are analyzed and processed through a fault mode prediction model, an output result of the signal quality evaluation parameters is obtained, the output result is a fault mode of the wireless network channel, and the fault mode is used for indicating the interference degree of the wireless network channel. According to the method and the device, the technical problem that the evaluation result is inaccurate due to the fact that the communication quality of the wireless communication channel is evaluated in a manual mode in related technologies is solved.

The invention belongs to the technical field of radar and electronic equipment, and discloses a universal miniaturized filter bank. The miniaturized filter bank comprises a multilayer ceramic substrate, a filter, a switch, a capacitor and a circuit interconnection wire. According to the invention, not only are the types and the number of component-level components greatly reduced, but also the problems of electromagnetic noise and signal interference caused by nonlinearity of the components are reduced through airtight packaging, and the electromagnetic compatibility characteristic of the system is improved.

The present application relates to the technical field of engineering equipment, and specifically discloses a multi-channel weak signal acquisition system, which uses the ADS1299 chip to achieve high-precision signal acquisition, and reduces signal interference by designing hardware circuits and software algorithms. The hardware circuit uses ESD protection circuits and RC filter circuits for signal preprocessing to ensure the stability and anti-interference ability of the signal during transmission. The software part introduces deep learning technology to perform time-frequency analysis, feature filtering, and signal reconstruction on the human physiological signal data transmitted by the hardware circuit, thereby improving the signal quality. In this way, the signal interference problem in microfluidic chip detection can be effectively solved, and the detection accuracy and stability can be improved.

The utility model relates to the technical field of photoelectric communication, in particular to a QSFP (Quad Small Form-factor Pluggable) active optical cable assembly, which comprises a shell, a first mounting block and a second mounting block are symmetrically arranged on two sides of the shell respectively, one side of each of the first mounting block and the second mounting block is movably connected with a cap, a connector is movably connected in the first mounting block, and the connector is movably connected in the second mounting block. A QSFP connector is fixedly connected to one side of the connector, a limiting block is fixedly connected to the side, close to the connector, in the first mounting block, a silica gel pad is arranged in the first mounting block between the limiting block and the cap, and a pressing mechanism is rotationally connected to the interior of the shell; according to the device, the movement and swing of the connector, the wire core, the QSFP connector and the wire are effectively limited through the pressing mechanism, so that the stability of the active optical cable is improved, signal interference or connection faults possibly caused by looseness or swing are reduced, the possibility of faults is reduced, and the service life of equipment is prolonged.

The present application discloses a dual-mode communication system based on power line carrier and wireless communication, including: a dual-mode communication module and a test module are respectively arranged on each communication link segment; the test module is used to control the head-end communication node of the communication link segment to send test signal data to the tail-end communication node through the power carrier communication unit and the wireless communication unit respectively at every preset period; the power communication parameters and wireless communication parameters on each communication link segment are detected; based on the power communication parameters and wireless communication parameters detected at the current time node, the power transmission quality and wireless transmission quality on each communication link segment are calculated; the control module is used to determine the communication mode of each communication link segment at the current time node according to the transmission quality. Thus, by comprehensively considering the transmission quality of the power carrier and wireless communication, it is possible to determine the communication mode that best suits the current communication link segment, improve the stability of the communication system, and solve the problem of communication instability caused by the complexity and variability of the communication environment.

This utility model discloses an ultra-thin stacked structure consisting of a battery, a motherboard, a button bracket, a button board, and a shielding cover. The motherboard has a first connecting surface connected to the battery, and this first connecting surface is a single-sided component. The motherboard is located inside the button bracket, and the button board is located outside the button bracket. The motherboard and the button board are respectively connected to the button bracket. The shielding cover is placed on a second connecting surface of the motherboard, which is opposite to the first connecting surface. This utility model, by adopting a single-sided design and a battery-motherboard mounting design in the battery area, reduces the height of components on the battery side, thereby effectively reducing the overall thickness. The 4G component stacking density is reduced, signal interference is decreased, and the shielding cover design prevents short circuits with taller components during reliability testing, meeting the stringent performance and reliability requirements of 4G communication.

The present invention relates to a medical device; specifically, to a medical accelerator module control box, comprising a housing, a fixed frame arranged inside the housing, slide rails arranged on the fixed frame corresponding to an industrial computer, a dose detection control box and a dose output control box, respectively, the industrial computer, the dose detection control box and the dose output control box are respectively mounted inside the housing through the slide rails, and the housing is also provided with an axial flow fan and an air compressor fan. The present invention rationally arranges the spatial positions of the industrial computer, the dose detection control box and the dose output control box, is simple to assemble, has good heat dissipation effect, and improves the working stability of the system.