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59results about How to "Avoid strong interference" patented technology
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D2D (device to device) communication-based uplink interference coordination method in multi-operator network system
ActiveCN103281788AInterference reduction or eliminationSolve problems that limiting distractions can'tWireless communicationNetwork deploymentRelevant information
A D2D (device to device) communication-based uplink interference coordination method in a multi-operator network system comprises the operating steps that (1), D2D UEs exchange respective inter-operator related interference information and make a decision that whether inter-operator potential interference exists; (2) a base station (BS) analyzes the received potential inter-operator interference information and decides whether uplink measuring is performed; (3) BS identifies the existence of the severe inter-operator interference and the honeycomb UE subjected to severe interference, thus indicating that the uncoordinated network deployment has a fault; and (4) interference coordination is carried out by resource allocation of the BS or the O&M (operation and maintenance) of an operation maintenance center. The method provided by the invention identifies the inter-operator strong interference source and an interfered terminal by the D2D communication and processes the same by the base station or O&M to coordinate the allocation of network resource, thus reducing or eliminating the inter-operator interference and further solving the problem that the interference cannot be solved by ACIR (adjacent channel leakage ratio) limitation.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Transmission and reception method and equipment in V2X communication
PendingCN108632782AAvoid strong interferenceImprove transmission efficiencyParticular environment based servicesVehicle wireless communication serviceBit fieldIn vehicle
An embodiment of the invention provides a transmission and reception method in vehicle-to-everything (V2X) communication. The transmission and reception method comprises the steps that a first type ofUE detects a PSCCH in the format of SCI X transmitted by other UE, determines whether to further measure PSSCH-RSRP of a PSSCH scheduled by means of SCI X and whether to further demodulate the PSSCHscheduled by means of the SCI X according to the SCI X. The transmission and reception method further comprises the steps that a second type of UE detects the PSCCH in the format of SCI X transmittedby other UE, and determines a TBS of the PSSCH scheduled by means of SCI X according to a modulation coding bit field in the SCI X and a predefined TBS mapping norm. The transmission and reception method further comprises the steps that the second type of UE determines transmission power of the PSCCH in the format of SCI X and the PSSCH scheduled by means of the SCI X according to a modulation mode. By adopting the transmission and reception method, the coexistence of the first type of V2X UE and the second type of V 2X UE can be better realized, and the transmission efficiency of the second type of V 2X UE is improved.
Owner:BEIJING SAMSUNG TELECOM R&D CENT +1
Method for sending channel state information reference signal, base station and relays
ActiveCN103138869AAvoid strong interferenceReduce strong interferenceError preventionWireless communicationChannel state informationThroughput
The invention discloses a method for sending a channel state information reference signal, a base station and relays. The method includes that the base station obtains the number of channel state information reference signal (CSI-RS) ports and CSI-RS resource configuration information during sending of a CRS-RS to a terminal; the obtained number of the CSI-RS ports and the CSI-RS resource configuration information are notified to the relays under the base station, the number of the CSI-RS ports and the CSI-RS resource configuration information are used by the relays to schedule time-frequency resource orthogonal with time-frequency resource occupied when the base station sends the CSI-RS so as to send the CSI-RS. By means of the technical scheme, the problem in the prior art that system channel measuring accuracy and the whole system throughput performance are low due to CSI-RS disturbance is solved.
Owner:CHINA MOBILE COMM GRP CO LTD
Method and device for using cross time slot resource in time division duplex CDMA system
InactiveCN1555145AEfficient use ofGuaranteed communication qualityCode division multiplexTransmission noise suppressionEngineeringEmbedded system
This invention discloses a method and a device for using cross slot resources in the time division duplex CDMA system conditions for using cross slots, assigning cross slot resources for users according to the designed conditions of using cross slots when a user applies for cut-in monitoring the cut-in user status in the cross slot to regulate and maintain the cross slot resources assigned to users. The device for realizing the said method is composed of a designing device, a storage device, a monitor device and a cross-slot distribution device.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Interference-suppress method for time slot code division multiple access system
ActiveCN1921322AAvoid strong interferenceReduce distractionsTransmissionTD-SCDMATime division multiple access
The invention relates to a disturbance restrain method of time-slot code division multiple access system. Wherein, it comprises when the detected code channel is more than maximum code channel of receiver, the system changes the signal channel coding speed of user or the speed matching hole rate, reduces sent data, and changes modulation, to control the detected code channel under maximum code channel. The invention can reduce the drop communication rate of TD-SCDMA system at the region edge, to improve the system stability.
Owner:SHANGHAI ULTIMATE POWER COMM TECH
Signal reception and detection method, mobile terminal and method and device for signal transmission
ActiveCN101540625AAvoid strong interferenceImprove decoding performanceMulti-frequency code systemsWireless communicationPilot signalResource location
The invention relates to a signal reception and detection method. The method comprises the following steps: an adjacent cell with a pilot signal for disturbing data signals in the cell is a disturbed cell; only the data signals in the cell in the different time-frequency resource positions with the pilot symbols in the disturbed cell are received and detected; and the first default value is adopted as the reception and detection result of the data signals which are not actually received and detected. In the invention, the data in the same time-frequency resource position with the pilot symbols in the disturbed cell is disturbed, therefore, the undisturbed data, i.e. only the data in the different time-frequency resource positions with the pilot symbols in the disturbed cell is actually received and accepted. The intensive interference of pilot frequency of the adjacent cell to the UE on the edge of the cell is avoided, the decoding performance of the UE is enhanced, and the demodulation errors are reduced; and the error propagation caused during the soft-decision iterative decoding is also avoided, so the data receptivity of the UE is further improved. The invention also provides a UE as well as a method and a device for signal transmission.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Method and device for simulating optical link linearization
InactiveCN104702339AAvoid strong interferenceFacilitate long-distance transmissionRadio-over-fibreDigital signal processingLinearization
The invention provides a device for simulating optical link linearization. The device comprises a laser, a first wavelength division multiplexer, a polarization modulator, a polarization controller, a polarization analyzer, a second wavelength division multiplexer, a first photoelectric detector and a second photoelectric detector. The invention further provides a method for simulating optical link linearization. According to the method, the polarization modulator and the polarization analyzer are equivalent to an asymmetric Mach-Zehnder modulator, analog signal strength is orthogonally modulated on a pair of simultaneously propagating optical links, the difference between offsetting angles of the two modulators is 90 degrees, and original analog signals are linearly restored at a far end by the aid of direct detection of the two links and digital signal processing technology. Demodulated signals cannot be intensively interfered by delay mismatching problems caused by double parallel structures, stability of a system is enhanced, highly coherent intrinsic signals are omitted, accurate polarization adjustment at the far end is omitted, and long-distance transmission of radio frequency signals is benefited.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Discovered signal transmission method and apparatus, and cell discovering method and apparatus
ActiveCN105491641AAvoid strong interferencePower managementAssess restrictionFrequency spectrumEngineering
The invention discloses a discovered signal transmission method and apparatus, and a cell discovering method and apparatus. The discovered signal transmission method comprises the steps of determining whether a channel in an unauthorized frequency band is in an idle state; if the channel in the unauthorized frequency band is in the idle state, in a transmission period of a discovered signal of a current period, sending the discovered signal in the channel in the idle state in the unauthorized frequency band; and if the channel in the unauthorized frequency band is not in the idle state, sending the discovered signal in a channel not in the idle state and not in the unauthorized frequency band in the current period. According to the method, the discovered signal can be sent in the unauthorized frequency band, so that the problems that spectrum resources cannot be allocated for the discovered signal due to shortage of the authorized frequency band resource or transmission of the discovered signal leads to strong interference are solved.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Airbag apparatus
ActiveUS20150115577A1Avoid strong interferenceDelay in deploymentPedestrian/occupant safety arrangementAirbagEngineering
An airbag apparatus includes an airbag that deploys and inflates while being unfolded from an accommodating portion, when inflating gas flows into the airbag; and a regulating member that is able to regulate the deployment and inflation of an airbag. The regulating member is flexible, and includes a temporary holding portion that releasably and temporarily holds a folded portion that is a part of the airbag; an attachment portion that is attached to the accommodating portion; and a connecting piece portion that connects the attachment portion and the temporary holding portion. The temporary holding portion includes a base portion that is continuous with the connecting piece portion, and a cover portion that forms a holding concave portion for temporarily holding the folded portion, and is connected to the base portion. An opening for releasing the folded portion is provided at an inner circumference of a non-connected release edge.
Owner:TOYODA GOSEI CO LTD
Method, device and system for realizing interference control and interference avoidance
ActiveCN102421183AEfficient schedulingAvoid strong interferencePower managementReporting parametersHue
The invention relates to the field of communication and discloses a method, a device and a system for realizing interference control and interference avoidance, and the method, device and system disclosed by the invention can be used for effectively lowering the strong interference on an MUE (MeNB user) in a coverage range caused by a micro base station in a network with different hierarchies. The method comprises: the micro base station and the MeNB obtain same subframe attribute information used for representing the setting modes of a muting subframe and / or protected subframe; the micro base station can effectively dispatch HUEs (Home NodeB users) within a scope of jurisdiction according to the obtained subframe attribute information, and controls the downlink transmission of the HUEs to realize interference control; and the MeNB can effectively dispatch MUE within a scope of jurisdiction according to the obtained subframe attribute information, indicates the MUE to measure and report parameters on the proper measurement position and controls the downlink transmission of the MUE so as to realize interference avoidance, therefore, strong interference on the MUE caused by the micro base station can be effectively avoided, and the throughput of the layered networking is improved.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Intelligent controller for multifunctional anti-bedsore care bed
InactiveCN101566832AReduce processing workSimple hardware structureComputer controlSimulator controlKey pressingHuman–machine interface
The invention discloses an intelligent controller for a multifunctional anti-bedsore care bed, which solves the problems of poor safety, high cost, inconvenient operation and the like of the prior control device for an anti-bedsore care bed, and has the advantages of friendly human-machine interface, convenient operation, perfect error protective measures, low manufacturing cost and the like. The structure comprises that a control panel circuit performs liquid crystal display and keystroke operation treatment; a master control board circuit receives an operating command from the control panel circuit through a master control core circuit, and an output drive circuit of the master control board is connected with a relay output board circuit; a signal input circuit detects the bed body position; the relay output board circuit receives a control signal from the output drive circuit to control the motion of a motor; simultaneously, a multi-motor operation detection circuit and a multi-motor fault detection circuit send the detected operation and fault signals to the signal input circuit; and the control panel circuit exchanges information with the master control board circuit through RS485 serial communication to form a master-slave mode control structure.
Owner:ENERGY RES INST OF SHANDONG ACAD OF SCI
5G ultra-dense wireless access network deployment system and a virtual cell updating method thereof
ActiveCN109756904AAvoid signaling stormsLimit communication delayNetwork planningAccess networkInformation transmission
The invention relates to a 5G ultra-dense wireless access network deployment system and a virtual cell updating method thereof, the 5G ultra-dense wireless access network deployment system comprises aplurality of AAUs, a plurality of DUs and a plurality of edge clouds, and the virtual cell updating method comprises an acquisition step, a calculation step and an updating step. On one hand, the user terminal is always ensured to access one or more AAUs with good communication quality in the system, so that strong interference can be avoided, a multi-point cooperative transceiving technology isenabled, the information transmission rate and reliability of the user terminal can be improved, and meanwhile, the application effect of V2X can be better achieved; And on the other hand, in the virtual cell updating method, the new DU takes over the virtual cell first, and then the current DU releases the virtual cell, so that application effect of the AAU-is realized. According to the virtual cell updating method, firstly, a new DU takes over a virtual cell. the virtual cell is released by the current DU after the user terminal moves the AAU-DU, effective cooperation between the AAU-DU-edgecloud is realized, updating of the virtual cell can be smoothly realized in the moving process of the user terminal, information transmission of the user cannot be interrupted, and better user experience can be achieved.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Drivepipe local discharge electrified detection device based on directional antenna array
InactiveCN103698673AReduce distractionsIncrease receive gainTesting dielectric strengthDirectional antennaEngineering
The invention discloses a drivepipe local discharge electrified detection device based on a directional antenna array. An electromagnetic wave signal radiated by local discharge is detected by virtue of the directional antenna array, and then is converted into a voltage signal so as to be output; a signal conditioner is used for receiving the voltage signal output by the directional antenna array, eliminating a received electromagnetic wave interference signal, amplifying the voltage signal and improving the signal-to-noise ratio; a high-speed signal collector is used for performing analog-to-digital conversion on the signal output by the signal conditioner and realizing the collection, storage and display of the digital signal. According to the device disclosed by the invention, a detection antenna is distributed in a safe region on the ground, so that the safety and reliability are high, and meanwhile, the sensor installation problem in the prior art is solved; the directional antenna array is adopted for detecting a drivepipe local discharge signal, and is combined with the signal conditioner, so that the drivepipe local discharge signal receiving gain is improved, meanwhile the drivepipe peripheral electromagnetic interference receiving gain is reduced, and strong interference on drivepipe local discharge detection due to a severe electromagnetic environment of transformer substation is overcome.
Owner:GUANGZHOU POWER SUPPLY CO LTD +1
Method, device and system for adjusting uplink power of micro base station
ActiveCN102123489AAvoid strong interferenceGuarantee signal qualityPower managementCommunications systemSignal quality
The invention relates to the field of communications and discloses a method, device and system for adjusting an uplink power of a micro base station. The method comprises the following steps: when a macro base station causes interference on an uplink signal of the micro base station, an operational maintenance server or the micro base station acquires an uplink control power capable of resisting interference through calculation on the basis of an uplink interlayer power balance principle and in the term of an uplink target power of the macro base station, and adjusts the local uplink power of the micro base station according to the uplink control power. Therefore, when the macro base station causes the interference on the uplink signal of the micro base station, the uplink power of the micro base station can be properly adjusted, therefore, the strong interference caused by the macro base station is effectively overcome, and the signal quality of the macro base station is kept. The invention simultaneously discloses the operational maintenance server, the micro base station and a corresponding communication system.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Electrified detection system for partial discharge of electric sleeve
InactiveCN103698672AReduced reception performanceIncrease acceptance gainTesting dielectric strengthSignal ConditionerEngineering
The invention discloses an electrified detection system for partial discharge of an electric sleeve. The electrified detection system comprises a directional antenna, a signal conditioner and a signal collector, wherein the directional antenna, the signal conditioner and the signal collector are sequentially connected; the directional antenna is used for detecting an electromagnetic wave signal radiated due to discharge of a to-be-detected position of the electrified sleeve, converting the electromagnetic wave signal into a voltage signal and sending the voltage signal to the signal conditioner; the signal conditioner is used for carrying out noise removing on the voltage signal, amplifying the voltage signal and sending the conditioned signal to the signal collector; the signal collector is used for obtaining a digital signal by carrying out AD (Analog to Digital) conversion on the conditioned signal, and storing and displaying the digital signal. According to the technical scheme disclosed by the invention, the detection sensitivity is increased, and strong interference from severe electromagnetic environment of a transformer substation to partial discharge detection is overcome.
Owner:GUANGZHOU POWER SUPPLY CO LTD +1
SAR image channel extraction method combining gray-level threshold-value segmentation and contour shape identification
ActiveCN103996039AStrong ability to resist background noiseAvoid strong interferenceCharacter and pattern recognitionExternal connectionBackground noise
The invention discloses an SAR image channel extraction method which combines gray-level threshold-value segmentation and contour shape identification. The method includes step1: adopting gray-level threshold-value segmentation to carry out a first background segmentation on an SAR image; step2: according to channel contour shape characteristics, carrying out sectioned modeling on channel areas, wherein the channel areas are represented as combination of a plurality of minimum external-connection rectangular windows; step3: combining minimum external-connection rectangular windows in the same area so as to form a plurality of second rectangular windows; step4: according to the shape and connectivity of a channel contour, splicing second rectangular windows which satisfy a condition into a rough channel area; and step5: carrying out gray-level threshold-value segmentation again so as to obtain a channel extraction image. The SAR image channel extraction method which combines gray-level threshold-value segmentation and contour shape identification inhibits background noises, which are approximate to both a water-body gray level and a shape characteristic in the SAR image, through combination of an image gray-level characteristic and a shape contour characteristic of the channel and a multi-mode SAR image segmentation decision so that channel areas are extracted precisely and accurately.
Owner:HOHAI UNIV
Method for reducing co-channel interference in sector interval
InactiveCN1913695AAvoid strong interferenceEliminate mutual interferenceRadio/inductive link selection arrangementsTransmissionCode division multiple accessCo-channel interference
The invention discloses a method for decreasing the frequency interference of sectors, including: compositing the scrambling codes of the repeated codes which are likely to happen in the complex codes to form a number of base-scrambling code groups, and obtaining the corresponding relationships between the base-scrambling code groups and the downlink pilot-codes according to the splitting situation of the groups; distributing different base scrambling codes to the adjacent base stations; distributing a downlink pilot-code for each area which is different from the ones of the adjacent area according to the corresponding relationships between the base-scrambling code groups and the downlink pilot-codes; determining the scrambling code of this area based on the corresponding relationships between the distributed downlink pilot-codes and the base-scrambling code groups.
Owner:CHINA ACAD OF TELECOMM TECH
Method for quantitatively measuring green leaf rate of herbaceous plant quickly based HSV color space
InactiveCN106570898ARapid quantitative assayAccurate acquisitionImage analysisUsing optical meansMaterial resourcesQuadrat
The invention relates to a method for measuring the green leaf rate of herbaceous plant, and aims at providing a method for quantitatively measuring the green leaf rate of herbaceous plant quickly based the HSV color space. The method comprises the steps: obtaining a quadrat picture through a digital camera; carrying out the preprocessing of the quadrat picture, cutting a representative part in the picture, and storing the representative part; storing the picture in Matlab software, and converting the image into an HSV mode; defining a color section where green leaves are located in the picture as a target color section, and setting the component range of the target color section; carrying out the traversal of all pixels in the picture, and judging whether the pixels are located in the target color section or not; carrying out the statistics and calculation so as to obtain the green leaf rate of a region corresponding to the quadrat picture. The method can save a great amount of manpower and a great number of material resources, is simple and convenient, is reliable in result, and can quickly and accurately obtains the information of the green leaf rate of the herbaceous plant. The method irons out the defects that a conventional method for measuring the green leaf rate of herbaceous plant is poor in subjectivity, roughness and repeatability and the cost is high when professional software is used for digital image processing and measurement.
Owner:ZHEJIANG UNIV
Method for controlling speed rate of reverse link based on channel quality
ActiveCN102006636AImprove system throughputLow Terminal Transmission PowerEnergy efficient ICTNetwork traffic/resource managementInstabilityResource utilization
The invention relates to a method for controlling the speed rate of a reverse link based on the channel quality. In a system comprising an access terminal, a wireless access network, a grouped core network and an IP (Internet Protocol) network, the activated access terminal is graded according to the pilot power and the method for weighting factors is introduced to flexibly adjust the allocation of T2P streams. The method comprises the following steps of: (1) presetting a threshold value of a system load and calculating a load factor of the reverse link; (2) comparing the calculated load factor of the reverse link with the threshold value of the load to obtain an RAB (Radio Access Bearer) value; (3) adjusting the resource allocation of the T2P by the access terminal according to the current RAB value and the quality condition of the reverse channel of the access terminal; and (4) adjusting the transmission speed by the access terminal according to the allocated T2P resources and a mapping table of the data speed rate. The invention has higher system throughout, lower terminal transmission power and smaller system load, improves the utilization rate of the resources and simultaneously avoids the instability of the system because the terminal with poorer channel quality improves the transmission power.
Owner:THE PLA INFORMATION ENG UNIV
Method and device for performing signal transmission
ActiveCN103796210AAvoid mutual interferenceAvoid strong interferenceNetwork topologiesNetwork planningTelecommunicationsPerception
The invention relates to the technical field of wireless communication, and particularly relates to a method and a device for performing signal transmission and aims at solving a problem of relatively high channel interference in the prior art. The method of the embodiment of the invention comprises that: all access points APs in a coverage area of a wireless local area network WLAN are grouped, wherein the APs in the same group after grouping can mutually acquire signal transmitting state, a perception area of each AP completely comprises the effective coverage area of other APs in the same group, and the APs which are arranged in different groups with the same allocated channel cannot mutually acquire the signal transmitting state and the perception areas are not overlapped. With adoption of the method and the device of the embodiment of the invention, the APs in the same group can share capacity of the same channel so that interference is avoided, the APs which are arranged in different groups with the same allocated channel cannot mutually acquire the signal transmitting state and the perception areas are not overlapped, and thus the APs of different groups respectively use the channels independently and generation of high interference is avoided.
Owner:CHINA MOBILE GRP BEIJING
Resource distribution method and device for service access
ActiveCN102378381AAccurate assessmentAvoid strong interferenceHigh level techniquesWireless communicationQuality of servicePower factor
The invention provides a resource distribution method and device for service access, wherein the resource distribution method comprises the steps of: determining at least one standby cell according to a received RRC (Regional Resource Center) connection request comprising cell information; correspondingly determining a downlink power factor value at each uniform downlink time slot of each same frequency carrier according to a carrier emission power value of the at least one standby cell at each uniform downlink time slot of each same frequency carrier; and determining a resource distribution priority according to the downlink power factor value at each uniform downlink time slot of each same frequency carrier, and then performing the resource distribution operation. In the invention, the resource with less downlink interference is selected for use, so that a received strong interference or a generated strong interference is avoided; the quality of service is increased; and the access efficiency is improved.
Owner:CHINA MOBILE COMM GRP CO LTD +1
Method for detecting and processing relative authorization signaling
InactiveCN101207882AReduce consolidationImprove throughputTransmission control/equalisingDiversity/multi-antenna systemsPhysical layerSoft switch
The invention discloses a method of detecting and processing the relative authorization signaling. The terminal physical layer detects the relative authorization signaling carried on the downward relative authorization indication signal channel; when the terminal is not in the soft switch status and the valid relative authorization signaling is detected, the signaling is sent to the upper layer; otherwise, the maintenance signaling is sent to the upper layer; if the terminal is in the soft switch status and the relative authorization signaling of a plurality of service wireless link assembly in the activated assembly, and only one wireless link exists, the terminal is treated in the same way as the non-switch status, when a plurality of wireless links converge a plurality of authorization signaling, and the converged result is valid, the converged result is sent to the upper layer; when the converged result is invalid, the maintenance signaling is sent to the upper layer; the terminal physical layer detects the relative authorization signaling of the non-service wireless link assembly in the activated assembly, as long as one valid authorization reduction signaling is detected, the signaling is then sent to the upper layer; otherwise, the maintenance signaling is sent to the upper layer.
Owner:ZTE CORP
Method for reducing wireless-body-area-network system interferences
InactiveCN103873135AGuaranteed to be differentAvoid strong interferenceNetwork topologiesRadio transmission for post communicationTransmission performanceBody area network
Disclosed is a method for reducing wireless-body-area-network (WBAN) system interferences. The method includes: a second multi-port repeater hub2 of a second adjacent body area network BAN2 sends an activation superframe interlacing request to a first multi-port repeater hub1 of a first adjacent body area network BAN1, wherein the activation superframe request includes a beacon offset sequence of the BAN2; and the hub1 feeds back an activation superframe interlacing response to the hub2 after performing judgment according to the beacon offset sequence of the BAN2, wherein the fed back activation superframe interlacing response includes a beacon offset sequence of the BAN1. After the method for reducing the WBAN system interferences is applied, generation of strong interferences between beacons is prevented so that transmission performance of BAN edge nodes and overall performance of a system are effectively ensured.
Owner:POTEVIO INFORMATION TECH
Miniature servo for detecting angle by utilizing magnetic sensor and detection method of miniature servo
ActiveCN110631471AAvoid strong interferenceAccurate and reliable detection workUsing electrical meansMechanical energy handlingControl engineeringGear transmission
The invention belongs to the technical field of servo detection and relates to a miniature servo for detecting an angle by utilizing a magnetic sensor. The miniature servo comprises a shell, a front cover and a rear cover; the shell, the front cover and the rear cover are fixedly connected with one another through a plurality of screws; a plurality of first screws are uniformly arranged on one side of the outer surface of the rear cover; a rotating shaft is fixedly mounted at one end of each worm and gear transmission mechanism; permanent magnets are fixed onto the end surfaces of the rotatingshafts through AB glue; a plurality of pressing blocks are fixedly installed on one side of the outer surface of the front cover; a main control PCB is fixedly installed on one side of the front cover through a plurality of third screws; a plurality of pressing plates and second grub screws are evenly and fixedly connected between the main control PCB and the front cover; and the pressing platesare fixedly connected to the main control PCB through a plurality of second grub screws. With the miniature servo for detecting the angle by utilizing the magnetic sensor adopted, the rotating angle of an output shaft can be detected more accurately and reliably; an angle control capacity is improved with the integration of the servo not affected; and the steering performance of a flying body is improved.
Owner:WUHAN TIEDUN CIVIL DEFENCE ENG +1
River Channel Extraction Method of SAR Image Combined with Gray Threshold Segmentation and Contour Morphological Recognition
ActiveCN103996039BStrong ability to resist background noiseSuppress background noise targetsCharacter and pattern recognitionPattern recognitionMinimum bounding rectangle
Owner:HOHAI UNIV
Analog quantity input board card and analog quantity acquisition method
InactiveCN105759675AImprove stabilityImprove reliabilityProgramme controlComputer controlSignal processing circuitsLow voltage
The invention discloses an analog quantity input board card and an analog quantity acquisition method. The analog quantity input board card includes a high voltage isolation power source circuit, a high voltage differential processing circuit, an isolation acquisition circuit, a low voltage signal processing circuit, a processor and a controller local area network driving circuit. According to the analog quantity input board card of the invention, the high voltage differential processing circuit acquires high voltage signals of external equipment and performs voltage reduction processing on the acquired high voltage signals; the isolation acquisition circuit isolates the high voltage differential processing circuit and the low voltage signal processing circuit; and therefore, strong interference on rear circuits caused by the high voltage signals of the external equipment can be avoided, and the stability of the whole analog quantity input board card can be improved. The analog quantity input board card and the analog quantity acquisition method have the advantages of high reliability and strong anti-interference ability.
Owner:CRRC DALIAN R & D CO LTD
Circuit breaker operating mechanism and circuit breaker and high-voltage switch applying same
InactiveCN106158494AEffective protectionCompact structureHigh-tension/heavy-dress switchesAir-break switchesControl systemHigh pressure
The invention discloses a circuit breaker operating mechanism and a circuit breaker and high-voltage applying the same. The circuit breaker operating mechanism comprises an operating mechanism box, a motor used for driving a dynamic contact insulating tension rod is mounted in the operating mechanism box, and the output shaft of the motor extends out of the operating mechanism box. By the arrangement that the motor is arranged in the operating mechanism box, the motor itself, a data transmission line and a power line are effectively protected, and interference caused by strong interference environment on an electromotor control system, data transmission and the like in field application are avoided; the motor is arranged in the mechanism box to be integrally formed with the mechanism box, so that the entire operating mechanism is more compact in structure and convenience in in-situ mounting and maintaining is achieved.
Owner:PINGGAO GRP +1
Chip upgrading system and method, electronic equipment and storage medium
ActiveCN112817628AReduce upgrade timeImprove upgrade efficiencyTransmissionSoftware deploymentData packNetworked system
The embodiment of the invention discloses a chip upgrading system and method, electronic equipment and a storage medium. The chip upgrading system comprises a network system, a processor and a chip to be upgraded, and the network system is in communication connection with the processor and used for sending an upgrading data packet to the processor; the processor is in communication connection with the to-be-upgraded chip and is used for receiving the upgrading data packet and determining upgrading verification data according to the upgrading data packet, generating an upgrading file according to the upgrading data packet under the condition of determining that the upgrading verification data meets the chip upgrading condition, wherein the network system performs data interaction with the processor through an Ethernet data packet; the to-be-upgraded chip is used for upgrading according to the upgrading file. According to the technical scheme, the chip upgrading time is shortened, the communication distance is increased, and the chip upgrading success rate is increased.
Owner:KUSN MAIZHI FIXTURE TECH
Incoherent Imaging Glass Thickness Measurement Method
InactiveCN103727887BAvoid strong interferenceStable spot position calculationUsing optical meansLight sensingImaging lens
The invention relates to an incoherent imaging glass thickness measuring method and belongs to the technical field of photoelectrical detection. The incoherent imaging glass thickness measuring method is characterized in that an incoherent point light source or a line light source is adopted as a lighting source, if the incoherent line light source is adopted, the length direction of the line light source is required to be parallel to the surface of a detected glass board, light emitted by the lighting source passes through a converging lens and a real image is imaged above the upper surface of the detected glass board or below the lower surface of the detected glass board. An imaging lens carries out imaging of two virtual images or two real images, wherein the two virtual images or the two real images are formed as the upper surface and the lower surface of the detected glass board reflect light of the incoherent point light source or the line light source. Two imaged real image faculae are located on a light sensing face of a line array imaging device or a face array imaging device and the thickness of the detected glass board can be obtained by calculating the distance between the two faculae. The incoherent imaging glass thickness measuring method has the advantages that influences of scattered faculae are avoided, measuring stability is improved, the probability of missing of the faculae due to angle changes of the glass board relative to a measuring system in movement is reduced, and influences on measurement by local flaws of the surface of the glass are avoided.
Owner:DALIAN UNIV OF TECH
Method, device and system for adjusting uplink power of micro base station
ActiveCN102123489BAvoid strong interferenceGuarantee signal qualityPower managementCommunications systemControl power
The invention relates to the field of communications and discloses a method, device and system for adjusting an uplink power of a micro base station. The method comprises the following steps: when a macro base station causes interference on an uplink signal of the micro base station, an operational maintenance server or the micro base station acquires an uplink control power capable of resisting interference through calculation on the basis of an uplink interlayer power balance principle and in the term of an uplink target power of the macro base station, and adjusts the local uplink power of the micro base station according to the uplink control power. Therefore, when the macro base station causes the interference on the uplink signal of the micro base station, the uplink power of the micro base station can be properly adjusted, therefore, the strong interference caused by the macro base station is effectively overcome, and the signal quality of the macro base station is kept. The invention simultaneously discloses the operational maintenance server, the micro base station and a corresponding communication system.
Owner:DATANG MOBILE COMM EQUIP CO LTD
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