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107results about How to "Avoid signal interference" patented technology

Display panel and display device

The invention provides a display panel and a display device. The problem that in the prior art, the touch sensitivity of a touch display screen is low is solved. The display panel comprises: a substrate; the shielding layer is located on the substrate, and the shielding layer comprises at least one through hole; the orthographic projection of the shielding part on the substrate covers the orthographic projection of the through hole on the substrate; and at least one touch wire, wherein at least part of the touch wire is located at one side, far away from the shielding layer, of the shielding part.
Owner:HEFEI VISIONOX TECH CO LTD

Beam control algorithm for wireless communication

The invention relates to the technical field of communication beam control, in particular to a beam control algorithm for wireless communication, which comprises the following steps of: selecting an initial beam direction set through a preset beam mode library; constructing a channel state feature map through a deep learning model, and predicting a future channel change trend of the user; according to the future channel change trend of the channel state feature map, preliminarily adjusting the beam direction set to generate a plurality of candidate beam directions; the self-adaptive tuning module based on reinforcement learning adjusts the beam width, so that the beam is concentrated in the target user direction and covers a potential multi-path reflection path; and continuously updating the beam pattern library and the deep learning model. According to the invention, the beam direction can be dynamically adjusted, so that the effectiveness and stability of signal coverage are improved, and the communication quality in a complex propagation environment is ensured.
Owner:SHIJIAZHUANG BUMU ELECTRONIC CO LTD

LED display module and LED display screen

The embodiment of the invention provides an LED display module and an LED display screen. The LED display module comprises a flexible LED lamp panel, a plurality of magnetic attraction pieces, an adapter plate and a power panel. A plurality of magnetic attraction pieces are arranged on the flexible LED lamp panel, the LED display module is fixed to the metal support of the bent wall face through the magnetic attraction pieces, mounting and dismounting of the LED display module can be simplified, and maintenance of the LED display module is facilitated. The adapter plate and the power panel are respectively arranged in different areas, so that the thickness of the LED display module can be reduced, and the light and thin design of the LED display module is facilitated. As the signal lines at the two ends of the adapter plate and the signal lines at the two ends of the power panel are in the horizontal direction, the magnetic attraction pieces are only distributed at intervals in the horizontal direction of the LED lamp panel, and no magnetic attraction piece is arranged in the vertical direction of the LED lamp panel, when the LED display modules are cascaded in the horizontal direction, the protruding and bulging phenomena caused by intersection of the signal lines, the power lines and the magnetic attraction pieces are avoided, and the display effect is improved. And the flatness of the LED display module is improved.
Owner:XIAN QINGSONG PHOTOELECTRIC TECH CO LTD

Wheel speed signal processing system and vehicle

The invention discloses a wheel speed signal processing system which comprises a sensor driving circuit and a computing unit, the sensor driving circuit comprises at least two integrated circuits, and the integrated circuits are connected with the computing unit and a wheel speed sensor. According to the wheel speed signal processing system, the sensor circuit is combined with a certain controller module in the vehicle, redundancy detection of the wheel speed sensor is achieved through certain control logic, recognition of the wheel speed signal is not affected by single-point failure in any circuit, and reliability can be improved. The invention further discloses a vehicle.
Owner:WUHU BETHEL ELECTRONICS CONTROL SYST

Hybrid bonding structure based on interlocking structure and bonding method

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.
Owner:FUDAN UNIVERSITY

Oil and gas well underground and ground bidirectional data communication method and system based on automatic frequency selection

The invention discloses an oil-gas well downhole and ground bidirectional data communication method and system based on automatic frequency selection in the technical field of oil-gas well and ground bidirectional communication, and the method comprises the steps: obtaining oil-gas well downhole parameter data, including pressure and temperature; on the basis of automatic frequency selection, modulating the downhole parameter data by using sound wave carrier waves through downhole equipment to obtain sound wave signals containing the downhole parameter data; transmitting the sound wave signal containing the underground parameter data to the ground, and carrying out demodulation processing to obtain the underground parameter data; according to the underground parameter data, generating a corresponding adjustment control instruction by using ground equipment; and based on automatic frequency selection, modulating a control instruction by using sound wave carrier waves to obtain a sound wave signal containing an adjustment control instruction, transmitting the sound wave signal to the oil and gas well underground equipment, demodulating the sound wave signal to obtain a control instruction emitted by the ground equipment, and executing corresponding operation. According to the invention, two-way transmission of data is realized through a sound wave carrier wave automatic frequency selection modulation and demodulation technology.
Owner:CHANGZHOU AIKONG INTELLIGENT INSTR CO LTD

A detection method integrating PCR amplification and capillary electrophoresis analysis

The present invention relates to a clamp device and a detection method integrating PCR amplification and capillary electrophoresis analysis. The present invention adopts an integrated pipeline closed clamp, so the contamination source of high-concentration PCR products is effectively controlled, avoiding cross contamination between laboratory tests, and eliminating manual intervention between PCR amplification and capillary electrophoresis analysis, thereby improving test efficiency and having good application prospects.
Owner:NINGBO HEALTH GENE TECHNOLOGIES CO LTD

An endogenous polypeptide, its preparation method and application

This invention discloses an endogenous polypeptide, its preparation method, and its application. The structural formula of the polypeptide is shown in Formula (I): R1-(AA1)m-AA2-AA3-(AA4)n-R2, Formula (I); wherein, m is independently 2 or 3; n is independently 1, 2, or 3; AA1 is independently K, R, or H; AA2 is independently I or W; AA3 is independently I or W; AA4 is independently K, R, or H; R1 is any one of -H, Y, LY, PLY, or LLY; R2 is any one of -OH, L, LL, E, EL, EW, W, EH, or EHL. While retaining its targeted antioxidant and anti-inflammatory functions, the polypeptide has removed the domain with high affinity for heparin, thereby avoiding signal interference and potential biosafety risks that may be caused by full-length PF4, and meeting the safety requirements for cosmetic ingredients.
Owner:ZHEJIANG JINGLI BIOTECHNOLOGY CO LTD +2

Motor control circuit of food processor

The invention provides a motor control circuit of a food processor, which comprises a power supply module, a control module, a zero cross detection module, a motor, a driving module and a common mode inductor connected in series in the motor control circuit, a first sampling point and a second sampling point which are connected with the control module are arranged on the current inflow side and the current outflow side of the common mode inductor respectively, a first voltage value is obtained through sampling of the first sampling point, and a second voltage value is obtained at the second sampling point through resistive partial pressure of the common mode inductor. And a voltage drop value between the first sampling point and the second sampling point is obtained according to a difference value between the first voltage value and the second voltage value, and the control module obtains a current value of the motor according to the voltage drop value.
Owner:JOYOUNG CO LTD

Printed circuit board, wiring method thereof, detection method and electronic equipment

The invention relates to the technical field of circuit boards, and discloses a printed circuit board, a wiring method of the printed circuit board, a detection method and electronic equipment. A target part located on the circuit board body; wherein the signal pins arranged on the outer side of the target part adopt layer wiring close to the part surface; and the signal pins arranged on the inner side of the target part use layer wiring far away from the part surface. In this way, the signal lines connected with the signal pins on the outer side of the target part are arranged on the layer close to the part face for wiring, the signal lines connected with the signal pins on the inner side of the target part are arranged on the layer away from the part face for wiring, and the signals corresponding to the layer away from the part face pass through the via holes in the layer close to the part face when penetrating out of the chip. Signal interference can be effectively avoided, the cost can be reduced, the wiring space is saved, and the wiring difficulty is reduced.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

A rapid testing device for rock deformation parameters

This utility model discloses a rapid testing device for rock deformation parameters, comprising a protective shell, one end of which is connected to the drill pipe and the other end to the drill bit. A power supply module, a resistance strain gauge group, a deformation parameter testing module, and a wireless transmission module are installed inside the protective shell. The power supply module provides power to the resistance strain gauge group, the deformation parameter testing module, and the wireless transmission module. The internal power supply line connecting the power supply module and the resistance strain gauge group is connected to the deformation parameter testing module via a signal transmission line. The deformation parameter testing module is electrically connected to the wireless transmission module. This utility model, by deploying resistance strain gauges, the deformation parameter testing module, and the wireless transmission module, monitors the strain signal generated by the interaction between the drilling equipment and the rock in real time, achieving rapid, accurate, and real-time testing of the Poisson's ratio of the rock mass during drilling, thereby guiding the evaluation of surrounding rock stability and the optimization design of support schemes in underground engineering.
Owner:SHANDONG XINJULONG ENERGY +1

PTH temperature, humidity and pressure integrated sensor for small-size vehicle

The invention belongs to the technical field of sensors, and particularly relates to a small-size vehicle PTH temperature, humidity and pressure integrated sensor which comprises a shell, a pressure sensing unit, a temperature and humidity sensing unit and a signal collecting and processing unit. The temperature and humidity sensing unit comprises a temperature and humidity sensing substrate and a temperature and humidity sensing chip which are longitudinally arranged below the base; the signal collecting and processing unit comprises a main PCB (Printed Circuit Board) which is transversely arranged above the base; the main PCB is transversely arranged above the base, the temperature and humidity sensing substrate is longitudinally arranged below the base, the main PCB and the temperature and humidity sensing substrate are separated through the base, signal interference can be avoided, heat transfer can be isolated, and the detection precision is greatly improved; and the temperature and humidity sensing substrate is opposite to the flow guide channel and is electrically connected with the main PCB through a plurality of connecting pins, so that complete independence of temperature, humidity and pressure acquisition is realized on the premise that the radial size of the sensor is not increased or even reduced, and comprehensive measurement of temperature, humidity and pressure is realized.
Owner:敏之捷传感科技(常州)有限公司

Semiconductor structure preparation method and semiconductor structure

The present disclosure provides a method for preparing a semiconductor structure and a semiconductor structure, wherein the preparation method comprises: providing a substrate, sequentially forming a buried power rail and a device structure on a first surface of the substrate. Forming a first dielectric layer on a second surface of the substrate, and performing an etching process on at least the first dielectric layer to form a through-hole structure and an opening structure, wherein the opening structure is located around the through-hole structure, and the through-hole structure exposes the buried power rail, wherein the first surface and the second surface are two surfaces of the substrate disposed opposite to each other. Performing a filling process to form a stress absorption structure in the opening structure and a conductive structure in the through-hole structure.
Owner:HUBEI YANGTZE MEMORY LAB

Laser processing head device

The invention belongs to the technical field of laser processing devices, and discloses a laser processing head device. The laser machining head device comprises a ceramic ring, a connector assembly, a locking ring, a slag stopping assembly and a probe assembly. The ceramic ring is provided with an annular through hole; the connector assembly comprises a connector body and a nozzle, the connector body is provided with a third through hole, the top end of the connector body penetrates through the annular through hole, the bottom end of the connector body is connected with the nozzle, and the nozzle is communicated with the third through hole. The locking ring is located in the annular through hole and connected with the ceramic ring and the connector body. The slag stopping assembly is located at the bottom of the ceramic ring and connected to the connector body in a sleeving mode, the slag stopping assembly is made of metal materials, a protruding part is arranged on the outer wall of the slag stopping assembly, and the distance from the outer side edge of the protruding part to the center of the slag stopping assembly is larger than the radius of the ceramic ring in the radial direction of the slag stopping assembly; and the probe assembly sequentially penetrates through and is connected with the ceramic ring and the joint body. The laser processing head device can effectively isolate the influence of metal return slag on the capacitance head, so that the processing quality stability is high.
Owner:SHANGHAI BOSCI AUTOMATION TECH CO LTD

Direct current cable of energy storage system

The utility model discloses an energy storage system DC cable comprising a conductor, and the outer side of the conductor is sequentially wrapped by a composite isolation layer, an insulation layer, an anti-spraying layer, a ceramic protection layer, a metal fiber shielding layer and a sheath layer. The conductor is of a layered winding structure, and the winding pitch is 6-8 times of the twisting outer diameter of the conductor. The direct-current cable of the energy storage system has excellent bending performance and tensile performance, also has excellent electrical insulation performance, and can ensure stable insulation performance in both high-temperature and low-temperature environments; meanwhile, the cable is fireproof, waterproof, damp-heat-resistant and excellent in flame retardant property; moreover, the cable can resist electromagnetic interference, thereby guaranteeing the stability of signal transmission. In addition, the cable is small in outer diameter and light in weight, and can meet the requirements of light weight and flexibility of the cable.
Owner:SHANGDONG HUALING CABLE

Weak acid buffer and its use in immuno-peptide component separation reagents

The present application relates to the biological field, and particularly to a weak acid buffer and its use in an immunopeptidome separation reagent, the weak acid buffer comprising amino acids and / or polypeptides, the mass-to-charge ratio of the amino acids and / or polypeptides being theoretically predictable and experimentally reproducible, or the mass-to-charge ratio being beyond the preset acquisition range of a mass spectrometer; the weak acid buffer further comprising a volatile acid, the volume concentration of the volatile acid being 0.01% to 10%; and the pH of the weak acid buffer being 3.0 to 3.5. The weak acid buffer of the present application has high compatibility, can maximally avoid pollution and signal interference to an analysis system, has a simple experimental procedure, and the overall operation can be completed within tens of minutes, thus having low technical threshold and high acceptability; can improve the number of immunopeptide groups identified, thus improving the efficiency of the experiment; and the reagent is cheap and easy to obtain, thus the method has low cost, is suitable for large-scale or even industrial use, has high universality, and the like.
Owner:WESTLAKE UNIV

SRS resource validity maintenance method, device and apparatus, and storage medium

Provided in the present application are an SRS resource validity maintenance method, device and apparatus, and a storage medium, the method comprising: a first network device sending a first message to a second network device, the first message comprising valid time information of an SRS resource. The first network device sends the first message to the second network device, the first message comprises the effective time information of the SRS resource, and after the second network device receives the first message, the effective time of the SRS resource can be updated according to the first message, so that the effective understanding of each network device on the SRS resource is ensured to be consistent, and the user experience is improved. And the problems of signal interference, positioning failure and the like are avoided.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Inspection connector

The invention provides an inspection connector which is arranged between an inspection apparatus and a device to be inspected and is used for inspecting the device to be inspected. The connector includes first and second metal housings, an elastic shield portion, a conductive portion, and an insulating portion. The first metal housing has a first through-hole, and the second metal housing has a second through-hole. The elastic shield portion is disposed between the first metal case and the second metal case to electrically connect the first metal case and the second metal case. The conductive portion is disposed in the first through-hole and the second through-hole. The insulating portion is inserted into the first through hole and the second through hole. The insulating part surrounds the conductive part in the circumferential direction of the central axis of the through hole so that the conductive part is positioned coaxially with the central axis.
Owner:ISC CO LTD

Display panel and spliced ​​display device

ActiveCN115798342Breduce widthIncrease design sizeStatic indicating devicesIdentification means
The embodiment of the present invention provides a display panel and a spliced ​​display device, which relate to the field of display technology to weaken visual seams. The display panel includes: a first edge and a second edge opposite to each other; a first pixel row and a second pixel row, the first pixel row is adjacent to the first edge, and includes a plurality of first sub-pixels arranged along the second direction, the first sub-pixels include a first light-emitting device and a first pixel circuit, the second pixel row includes a plurality of second sub-pixels arranged along the second direction, the second sub-pixels include a second light-emitting device and a second pixel circuit; a first spacing area corresponding to the second pixel row, the first spacing area is located on the side of the second pixel row corresponding to it close to the first edge, and the first spacing area is adjacent to the second pixel row corresponding to it; the second pixel row includes a second A pixel row adjacent to the first pixel row, the first pixel circuit is located in the first spacing area corresponding to the second A pixel row, and the second pixel circuit is located on the side of the second light-emitting device close to the first edge.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

A wireless configuration method, device, electronic device and storage medium

The embodiments of the present invention provide a wireless configuration method, device, electronic device and storage medium. It includes receiving a service adaptation request when adapting an uplink bandwidth service; configuring a working band base station based on the service adaptation request; screening an isolation band base station sector based on the working band base station; and locking the first target downlink time slot of the isolation band base station sector. The embodiments of the present invention perform wireless configuration by configuring the working band base station with different frequencies and locking the isolation band base station sector, which can effectively avoid the interference problem of the isolation band base station, and does not require the working band base station to support special bandwidth; the working band base station can maintain the original bandwidth without affecting the use of the existing network terminals; the time slot locking operation is also easy to implement; and the 5G large uplink solution is truly deployed in outdoor scenarios.
Owner:CHINA TELECOM CORP LTD

Permeable probe vehicle for mine well

The invention relates to the technical field of mine water permeation monitoring, and discloses a mine well water permeation detection vehicle which comprises a drive-by-wire walking chassis, a transient electromagnetic instrument, a jacking device and an electric control system. The electric control system comprises a switch which is in signal connection with the domain controller, the CPE and the Wi industrial personal computer. The domain controller is in signal connection with a gas sensor, a laser radar, an I MU and a binocular camera; the domain controller is in signal connection with the drive-by-wire walking chassis; the Wi industrial personal computer is in signal connection with a transient electromagnetic instrument and a splicing camera. The CPE is used for being in wireless signal connection with a display; the jacking device comprises a scissor type lifting frame provided with a driving device and a touch detector arranged at the top of the scissor type lifting frame. The driving device and the touch detector are respectively in signal connection with the domain controller; and except for the driving device, other structural components of the scissor type lifting frame are non-metal material components. The technical problem of underground automatic water exploration operation can be solved.
Owner:应急管理部大数据中心

Durability test fixture and method for direct-current converter

The invention discloses a DC converter durability test fixture and method, and the method achieves the cable-free connection of a to-be-tested product and an external power supply through directly integrating a wiring layer on the front surface of a cover body and electrically connecting the wiring layer with a copper bar, simplifies the complexity of electrical connection in the durability test of a DC converter, and improves the durability of the DC converter. The problems of poor contact, abrasion and short circuit possibly caused by a traditional cable are avoided, and the stability and reliability of connection are improved. And the wiring layer is directly integrated on the front surface of the cover body and is electrically connected with the copper bar, so that cable-free connection between the to-be-tested product and the external power supply is realized. By means of the design, electrical connection in the testing process is effectively simplified, the fault risk caused by poor contact or abrasion in a traditional cable connection mode is eliminated, and particularly the situation that a cable sheath is damaged in a high-temperature testing environment is avoided. The cable-free connection not only improves the stability and reliability of the connection, but also significantly reduces the test building time, and improves the overall test efficiency.
Owner:SHENZHEN TIANBANGDA TECH CO LTD

A flow fluorescence microsphere detection method and kit based on TSA signal amplification

PendingCN122591961AFacilitate catalytic reactionsachieve enrichment
This invention discloses a flow cytometry method for detecting fluorescent microspheres based on TSA signal amplification. The method includes: incubating fluorescently encoded microspheres coated with a capture antibody with a sample; adding a biotinylated detection antibody to form a sandwich complex; subsequently introducing two high-density signal amplification polymers sequentially: SA-PolyHRP400 as the first signal amplification polymer, and a second signal amplification polymer with a polysaccharide backbone and covalently coupled with multiple tyrosine and luciferin molecules. Under HRP catalysis, the tyrosine is activated and covalently deposited in the vicinity of the microspheres, achieving exponential amplification of the fluorescence signal. This method is simple to operate, more efficient than traditional methods, and more suitable for high-throughput, high-timeliness platforms like flow cytometry. It also exhibits high sensitivity, high specificity, and good repeatability for detecting low-abundance proteins such as IL-6 based on the sandwich method, and is compatible with non-magnetic / magnetic fluorescently encoded microspheres of various sizes. It is suitable for multi-indicator detection and can be widely applied to early clinical diagnosis and trace biomarker analysis.
Owner:BEIJING WEIGONG MEDICAL TECH CO LTD

Test device, test circuit and test system

The embodiment of the utility model discloses a test device, a test circuit and a test system, and relates to the field of test equipment. The testing device comprises a plurality of module modules, a plurality of channel modules, a control circuit, a first simulation module and a second simulation module. The plurality of module modules are arranged in parallel and are correspondingly connected with the plurality of acquisition modules; the plurality of channel modules are connected with the plurality of module modules; the control circuit is used for controlling the plurality of module modules and the plurality of channel modules; the first simulation module is connected with the plurality of channel modules; and the second simulation module is connected with the plurality of module modules. And the control circuit is configured to control the tested module to be communicated with the first simulation module through the plurality of connected channel modules when the tested acquisition module is tested. The testing device can quickly and independently test a single battery module, and the testing efficiency is improved.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD +1

Intelligent adaptive semiconductor package test optimization method

PendingCN122596363Aavoid misjudgmentAvoid exposure to exceptions
The application discloses an intelligent adaptive semiconductor package test optimization method, and particularly relates to the technical field of semiconductor package testing. The method establishes a package test item attribute library, configures a cooling time window and a load inertia label for each test item; after the execution of a current test item is completed, real-time state data of an automatic test equipment, a probe card, a load board and a chip to be tested are collected to determine the residual influence state of the current test item on subsequent tests; a candidate test item to be executed is obtained, and the test sensitivity level of the candidate test item is matched with the residual influence state to obtain an execution risk result; the test sequence is dynamically adjusted according to the execution risk result, the candidate test item is delayed, a low-load buffer test item is inserted or a low-risk test item is switched to when there is a risk; the adjusted test process is executed, and the cooling time window and the load inertia label are updated; and the application can reduce test scheduling conflicts, signal interference and probe or chip damage risks.
Owner:QIXIN (SUZHOU) INTELLIGENT TECH CO LTD

Radiation heat tea stove

The utility model provides a radiant heat drinking water boiler relates to drinking water boiler field, including: microcrystalline panel, sheet metal panel frame, touchpad box, PCB touchpad, bottom case, heating disc and spring, microcrystalline panel and bottom case adaptation connection form sealed structure, microcrystalline panel inner wall is connected sheet metal panel frame, sheet metal panel frame is connected with touchpad box, touchpad box is connected with PCB touchpad, the spring is connected with the bottom case, and the heating disc is connected with the PCB touchpad. The heating disc is connected to the bottom shell through a spring. The metal plate panel frame and the bottom shell which are made of cold-rolled galvanized plates are adopted, the heat resistance problem of a product shell is optimized, a noise source of a cooling fan is removed, meanwhile, the signal interference problem caused by the metal plate shell is avoided by adopting the plastic touch panel box, and the use experience of the product is further improved.
Owner:MIJI ELECTRONICS & APPLIANCES SHANGHAI

High-speed communication card edge connector

The utility model provides a high-speed communication card edge connector, which comprises an insulating body, an upper row of terminals and a lower row of terminals, the upper row of terminals and the lower row of terminals are respectively embedded into the insulating body from the rear side surface and the front side surface of the insulating body, and the front side surface of the insulating body is provided with an electronic card insertion port positioned between the upper row of terminals and the lower row of terminals. The upper-row terminal comprises a signal terminal and a grounding terminal, a grounding piece I embedded and fixed in the insulating body is arranged between the upper-row terminal and the lower-row terminal, a grounding piece II embedded and fixed in the insulating body is also arranged between the upper-row terminal and the lower-row terminal, and the grounding piece I is provided with a plurality of elastic contact parts I; the grounding piece II is provided with a plurality of elastic contact parts II; the grounding terminals of the upper row of terminals are simultaneously contacted and conducted with one elastic contact part I and one elastic contact part II; the high-speed communication card edge connector can achieve a good internal signal shielding effect and effectively solve the problem of poor contact caused by rigid contact.
Owner:SHENZHEN XINGWANLIAN ELECTRONICS CO LTD

Isolation protection device for weak current engineering

The utility model is applicable to the technical field of weak current engineering, and provides an isolation protection device for weak current engineering, which comprises an isolation shell for weak current engineering, a first limiting seat and a second limiting seat which are used for limiting a weak current cable are symmetrically arranged in the isolation shell, and the first limiting seat is fixedly connected with the inner wall of the isolation shell; the detachable shell cover is buckled at the top of the isolation shell and is used for preventing dust; the assembly frame is arranged at the bottom of the isolation shell, an assembly plate is fixed to one side of the assembly frame, and a detachable expansion bolt used for limiting is arranged on the assembly plate; and the partition plate is used for partitioning the interior of the isolation shell and is arranged in the isolation shell. The isolation protection device for the weak current engineering has the advantages of protecting a weak current cable, reducing cable interference, being firm and durable and effectively protecting the cable.
Owner:WUHAN KANGHUI DECORATION ENG CO LTD

Cooperative relative positioning method and system for a cluster of aerial vehicles

PendingCN122729982AImprove robustnessSupport co-location
This invention relates to the field of collaborative positioning technology for aircraft swarms, specifically a collaborative relative positioning method and system for aircraft swarms. The method includes: optimizing the scheduling of ranging and communication resources within the swarm by dynamically assigning appropriate roles and establishing a hierarchical ranging topology; collecting raw ranging and exchange data based on role assignment results, and constructing a relative position constraint network after consistency correction; iteratively solving this network to obtain a globally consistent relative position estimate, and using this estimate to fuse and correct the local navigation state of each aircraft, generating a local navigation correction value. This method achieves tight coupling from collaborative solution to individual navigation, effectively improving positioning accuracy and consistency of the swarm's internal state, while enhancing system scalability and robustness through a dynamic hierarchical structure.
Owner:BEIJING ZHONGXIN PREFERRED TECHNOLOGY CO LTD

Speed measurement method and system for train wheel defect detection

PendingCN119534910AAccurate Speed ​​DataAvoid false triggering issuesDevices using time traversedElectromagnetic wave reradiationLight speedLaser sensor
The embodiment of the invention provides a speed measurement method and system for train wheel defect detection, and relates to the technical field of speed detection. The speed measurement method for train wheel defect detection comprises the following steps: step 1, acquiring a first moment and a second moment; step 2, calculating a difference value between the second moment and the first moment to obtain first time; thirdly, the distance between the first measuring point and the second measuring point is a first distance, and the average speed of the train is obtained according to the ratio of the first distance to first time; the first measuring point and the second measuring point are respectively provided with a laser sensor and a wheel sensor, and a trigger point of the wheel sensor corresponds to the laser light speed of the laser sensor up and down. According to the method, the false triggering problem possibly occurring in a traditional speed measurement method is effectively avoided, and the speed measurement accuracy and reliability are improved.
Owner:沈阳铁道信息科技有限公司 +1