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True triaxial test ultrasonic wave and acoustic emission testing system and testing method thereof
InactiveCN102954914AAvoid damageGuaranteed to workMaterial strength using tensile/compressive forcesTriaxial shear testData information
The present invention discloses a true triaxial test ultrasonic wave and acoustic emission testing system. According to the present invention, a true triaxial test apparatus has six sides of pressurization units, wherein ultrasonic wave and acoustic emission coupling test transducers are arranged between every side of the pressurization unit and corresponding surfaces of rock, a communication terminal of at least one ultrasonic wave and acoustic emission coupling test transducer is connected with a signal output terminal of a multi-channel ultrasonic wave defect detector, communication terminals of other ultrasonic wave and acoustic emission coupling test transducers are respectively connected with a signal input terminal of the multi-channel ultrasonic wave defect detector and a signal receiving terminal of an acoustic emission instrument through signal shunts, and the acoustic emission instrument and the multi-channel ultrasonic wave defect detector are connected with a computer. With the present invention, an ultrasonic wave test and an acoustic emission test can be performed on the same rock, completely comprehensive data information can be provided for understanding of deformation and breaking law, and mechanics mechanism of the rock, and adverse affects on test results by difference of different blocks can be avoided.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
Cooperative vehicle infrastructure-based curve speed warning method
InactiveCN103745607ASimple layingEfficient early warningArrangements for variable traffic instructionsDriver/operatorThe Internet
The invention discloses a cooperative vehicle infrastructure-based curve speed warning method, which comprises the following steps: putting a road side unit at a curve, broadcasting out curve information periodically, and judging whether a vehicle heads for the curve or not in advance by a vehicle terminal according to the information of the vehicle and the received curve information; giving out the distance to the curve and the speed-limit prompt of the curve in advance if the vehicle heads for the curve; giving out the speed-limit prompt of the curve and detecting whether the vehicle is overspeed or not in real time if the condition that the vehicle drives into the curve is detected, and giving out overspeed warning if the vehicle is overspeed to remind a driver of driving at a safety speed; relieving the warning when the condition that the vehicle puts off the curve is detected. According to the method, the limiting speed of the curve can be given out in advance, and the condition that the vehicle drives into the curve and puts off the curve can be efficiently and reliably judged; written or audio warning is given out when the vehicle is overspeed, and therefore, a selectable simple scheme is provided for the auxiliary driving safety application of Internet of vehicles.
Owner:SUZHOU INST FOR ADVANCED STUDY USTC
Reliable message pushing method based on XMPP
InactiveCN104954348AMake sure to receivePerfect confirmation push mechanismData switching networksMessage queueProtocol for Carrying Authentication for Network Access
The present invention discloses a reliable message pushing method based on an XMPP. The reliable message pushing method of message queue buffer is employed to ensure that all messages are finally reliably pushed to a target terminal in the condition that a client terminal networking condition is not stable. According to the method, the XMPP is used to package the message from a sender, a Chinese Openfire server is used as a middleware server to cache the message, and after the stable networking of a receiver is monitored, the middleware server pushes the cached message to the receiver. In the process that the sender and the middleware server send the message, through verifying the identity of a valid connection, pushing messages, receiving a receipt package and other handshake processes, the condition that the message is safely pushed to the middleware server is ensured, and in the communication process of the middleware server and the receiver, through verifying whether the receiver is in the line and adding a message to be sent into the message queue, pushing the message, obtaining the receipt package and other handshake processes, the condition that the message is reliably received by the receiver.
Owner:普华讯光(北京)科技有限公司
Mobile monitoring
InactiveCN101076280AEasy transferNo risk of attenuationDiagnostic recording/measuringSensorsCommunication unitThe Internet
A wireless network for monitoring a patient (10) comprises at least one wearable monitor (12, 70) including a physiological condition sensor (34, 74) coupled to the patient (10) to sense and communicate data related to one physiological function of the patient (10). A first body communication unit (16, 78) interfaces with the at least one wearable monitor (12, 70) to communicate over the patient (10) utilizing a near field capacitive body coupled protocol. A relay system (14, 50 72) includes a second body communication unit (18, 52, 80) that receives data from the at least one wearable monitor (12, 70) and communicates with the first body communication unit (16, 78) utilizing the near field capacitive body coupled protocol. An external communication unit (22) communicates the data to a remote medical monitoring station via a cell phone network or the internet.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
A navigation instrument
InactiveCN101017607AStrong targetingImprove accuracyInstruments for road network navigationRoad vehicles traffic controlRadio equipmentEngineering
This invention is for car guidance to compute forward several sections of car flow, wherein, out known car guidance device shall not provide any information; this invention provides one car guidance meter composed of central processor, GPS system, electron map, wireless device and handle LCD screen.
Owner:张聪
Method for conference member to issue voice information in fragmentation asynchronous conference system
ActiveCN104579710AMake sure to receiveAvoid missingSpecial service provision for substationIdle timeService cloud
The invention discloses a method for a conference member to issue voice information in a fragmentation asynchronous conference system. The method comprises the following steps that the conference participant sends voice information through a conference APP according to the conference need; the conference APP identifies the conference participant role after receiving a voice information request sent by the conference participant; if the conference participant has the right to send the voice information, the conference APP sends the voice information to a conference service cloud through a data network; if the conference participant does not have the right to send the voice information, the conference APP prompts the user not to send the voice information, and sending of the voice information is canceled; the conference service cloud sends the information according to the type of the member in the conference. According to the method for the conference member to issue voice information, the voice information can be synchronized to the APP of the APP user, a checking address can be sent to a mobile phone of an ordinary mobile user through a short message, and the conference participant can check the conference information in the fragmentation idle time.
Owner:蚌埠甜啦啦企业管理有限公司
Method for conference member to issue picture information in fragmentation asynchronous conference system
ActiveCN104580778AMake sure to receiveAvoid missingSpecial service for subscribersTransmissionService cloudComputer science
The invention discloses a method for a conference member to issue picture information in a fragmentation asynchronous conference system. The method comprises the following steps that the conference participant sends the picture information through a conference APP according to the conference need; the conference APP identifies the conference participant role after receiving a picture information request sent by the conference participant; if the conference participant has the right to send the picture information, the conference APP sends the picture information to a conference service cloud through a data network; if the conference participant does not have the right to send the picture information, the conference APP prompts the user not to send the picture information, and sending of the picture information is canceled; the conference service cloud sends the information according to the type of the member in the conference. According to the method for the conference member to issue the picture information, the picture information can be sent to a mobile phone of an ordinary mobile user through a multimedia message and can be synchronized to the APP of the APP user, and it is ensured that the conference participants can receive the picture information.
Owner:喀斯玛汇智(无锡)科技有限公司
A secured transmission method for wideband wireless multimedia network broadcasting communication
InactiveCN101217811AImplement identity authenticationMake sure to receiveKey distribution for secure communicationPulse modulation television signal transmissionSecure transmissionBroadcast-safe
The invention relates to a secure transmission method of wide band wireless multimedia network broadcast communication; the method comprises the following steps: 1) trust relationship is established between big base stations and small base stations and a secure channel is formed; 2) the big stations distributes an encryption key of the broadcast communication to each small base station secretly by the secure channel; 3) when users log on the small stations, the encryption key of the broadcast communication of the big base stations can be obtained after passing certificate authority. The invention solves the problem that the broadcast communication of the big base stations without an uplink channel is not secure when working in a mode of mixed covering of large and small areas, thus realizing the identification of users and the base stations and ensuring that only the authorized users can receive broadcast service.
Owner:CHINA IWNCOMM
Method and device for transmitting information
ActiveCN109429558AImprove transmission efficiencyImprove reliabilityTransmission path divisionSignal allocationData informationCarrier signal
Provided are a method and device for transmitting information. The method comprises: determining frequency information about a second carrier for bearing subsequent scheduling data information; determining a current radio frequency support capability of the user equipment; if the frequency of the second carrier exceeds the current radio frequency support capability of the user equipment, sending scheduling information about the second carrier to the user equipment through the first carrier; and continuing to transmit information to the user equipment through the second carrier according to thescheduling information about the second carrier. By means of the method for transmitting information disclosed, subsequent scheduling information that may not be received by a user equipment due to alarge carrier span can be reduced, avoiding unnecessary retransmission, and saving system resources.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD
Social-insurance-oriented remote biological characteristic acquiring method
ActiveCN104881638AMake sure to receiveAvoid bad consequencesFinanceCharacter and pattern recognitionData acquisitionComputer terminal
The invention relates to a remote data acquiring method and especially to a social-insurance-oriented remote biological characteristic acquiring method for a social insurance system to confirm insured people. The social-insurance-oriented remote biological characteristic acquiring method is achieved on the basis of a rear-end platform and a biological characteristic acquiring communication terminal and comprises the following steps: A, a platform host transmits a notification short message to the terminal; B, the terminal transmits response information to the platform after receiving the notification short message; C, the platform sets a state corresponding to an ID related to an information sending terminal as 'received' after receiving the response information; D, an insured person acquires biological characteristic and sends the biological characteristic to the platform according to the prompt of the notification short message; and E, the platform sets the state corresponding to an ID related to an information sending terminal as 'completed' after receiving and verifying the information. The social-insurance-oriented remote biological characteristic acquiring method may guarantee the insured people's reception of the notification short messages and the reality and effectiveness of the acquired biological characteristics.
Owner:CETC SATELLITE NAVIGATION OPERATION SERVICE
Distance measuring device for amplifying pier sinking displacement
PendingCN111854684AAchieve improvementReduce measurement errorMechanical thickness measurementsHeight/levelling measurementLaser transmitterEngineering
The invention provides a distance measuring device for amplifying pier sinking displacement, which comprises a scale, a laser emitting assembly and a reflection assembly, wherein the scale is vertically arranged on the side surface of a pier; the laser emitting assembly comprises a laser emitter and a fixing piece. The laser emitter is arranged under the scale and obliquely fixed to the side faceof the pier through the fixing piece. The reflection assembly comprises a horizontal adjusting mechanism, telescopic mechanisms and reflecting mirrors. The number of the telescopic mechanisms is an odd number, and when the number of the telescopic mechanisms is larger than or equal to three, the multiple telescopic mechanisms are vertically arranged on the horizontal adjusting mechanism at intervals. Each telescopic mechanism comprises two telescopic single pieces which are symmetrically arranged; the reflecting mirror is vertically installed at the top end of each telescopic mechanism, the height of the corresponding reflecting mirror is adjusted through the action of a telescopic single piece, the reflecting mirrors are used for reflecting laser emitted by the laser emitters to the scale, amplification of pier sinking displacement is achieved, measurement errors are reduced, and the measurement precision is improved.
Owner:HUNAN LIANZHI BRIDGE & TUNNEL TECH
Novel fixing device for ventricular drainage
InactiveCN108853611ASave effort and precisionAccurate adjustmentMedical devicesSuction drainage systemsVentricular drainageEngineering
The invention discloses a novel fixing device for ventricular drainage. The fixing device for ventricular drainage comprises a supporting rod, a transverse rod, a hook, a traction rope, an infrared survey device, a photoresistor, a motor, a movable power supply and a controller, wherein the supporting rod and the transverse rod are hollow rod bodies, and the transverse rod is of a telescopic structure; one end of the transverse rod is vertically connected with the top of the supporting rod, and the hook is arranged on the lower portion of the other end of the transverse rod; the traction ropeis arranged in the supporting rod and the transverse rod, and one end of the transverse rod is connected with the hook. The fixing device is simple in structure and scientific and reasonable in design, and the problem that the height of a ventricular drainage bottle and the position of a debugging zero point are measured again is solved through an electronic mechanical survey means and an adjusting mode.
Owner:LIUZHOU LIANHAI TECH
Method and system for sending control signaling in power-saving mode
InactiveCN103458505BMake sure to receiveAvoid wastingPower managementConnection managementControl signalService gateway
Owner:ZTE CORP
Method and device for transmitting information
ActiveCN109429558BImprove transmission efficiencyImprove reliabilityTransmission path divisionSignal allocationComputer networkData information
The present disclosure provides a method and device for transmitting information, wherein the above method includes: determining the frequency information of the second carrier used to carry subsequent scheduling data information; determining the current radio frequency support capability of the user equipment; if the first The frequency of the second carrier exceeds the current radio frequency support capability of the user equipment, sending the scheduling information of the second carrier to the user equipment through the first carrier; according to the scheduling information of the second carrier, through the second The carrier continues to transmit information to the user equipment. By adopting the method for transmitting information provided in the present disclosure, it is possible to reduce the failure of user equipment to receive subsequent scheduling information due to a large carrier span, avoid unnecessary retransmission, and save system resources.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD
Mobile monitoring
InactiveCN100581445CNo risk of attenuationRedundant communicationDiagnostic recording/measuringSensorsCommunication unitThe Internet
A wireless network for monitoring a patient (10) comprises at least one wearable monitor (12, 70) including a physiological condition sensor (34, 74) coupled to the patient (10) to sense and communicate data related to one physiological function of the patient (10). A first body communication unit (16, 78) interfaces with the at least one wearable monitor (12, 70) to communicate over the patient (10) utilizing a near field capacitive body coupled protocol. A relay system (14, 50 72) includes a second body communication unit (18, 52, 80) that receives data from the at least one wearable monitor (12, 70) and communicates with the first body communication unit (16, 78) utilizing the near field capacitive body coupled protocol. An external communication unit (22) communicates the data to a remote medical monitoring station via a cell phone network or the internet.
Owner:KONINK PHILIPS ELECTRONICS NV
Information push method and device
ActiveCN106294778BReduce performance pressureImprove user experienceDigital data information retrievalTransmissionObjective informationComputer science
The invention relates to an information pushing method and device. The method comprises the steps of: determining a first user to be pushed; pushing target information to a first terminal corresponding to the first user; determining a second user, wherein the second user comprises the first user browsing the target information within a preset time after pushing; according to the similarity between a third user and the second user, pushing the target information to a second terminal corresponding to the third user, wherein the third user comprises other at least one part of users to be pushed except the first user. The performance pressure of a server is reduced in a batch pushing mode, meanwhile, the information is pushed to the third user according to the similarity between the third user and the second user, so that users interested in the information can preferentially receive the pushed information and the user experience is improved.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD
Beidou short message transmission and underwater navigation data compression method and navigation control MCU
ActiveCN112965416BMeet recordMake sure to receiveProgramme controlComputer controlData compressionUnderwater navigation
The invention belongs to the technical field of Beidou positioning and communication technology application and the navigation and positioning of underwater vehicles and short message communication, in particular to a Beidou short message transmission and underwater navigation data compression method. It includes the following steps: compressing the navigation data into a short message through the navigation control MCU; then, the Beidou module with dual-card communication, after judging the RD positioning, alternately sends the positioning information and the navigation data to the outside; then the shore-based equipment receives the positioning information Combined with the navigation data, decompress it; finally, according to the decompressed data and the preset route information, the underwater navigation of the vehicle is reviewed. Beneficial effect: By compressing the navigation data by this method, under the condition of the existing air vehicle, the information capacity of a short Beidou message can be used to record the navigation status information of the whole voyage. The adoption of dual-card dual-standby system improves the success rate and integrity of transmission, and ensures that shore-based equipment can receive communication information.
Owner:750 TEST SITE OF CHINA SHIPBUILDING IND CORP
A Method for Publishing Picture Information by Conference Members in Fragmented Asynchronous Conference System
ActiveCN104580778BMake sure to receiveAvoid missingSpecial service for subscribersTransmissionService cloudService information
Owner:喀斯玛汇智(无锡)科技有限公司
Remote biometric collection method for social security
ActiveCN104881638BMake sure to receiveAvoid bad consequencesFinanceCharacter and pattern recognitionData acquisitionData science
The invention relates to a remote data acquiring method and especially to a social-insurance-oriented remote biological characteristic acquiring method for a social insurance system to confirm insured people. The social-insurance-oriented remote biological characteristic acquiring method is achieved on the basis of a rear-end platform and a biological characteristic acquiring communication terminal and comprises the following steps: A, a platform host transmits a notification short message to the terminal; B, the terminal transmits response information to the platform after receiving the notification short message; C, the platform sets a state corresponding to an ID related to an information sending terminal as 'received' after receiving the response information; D, an insured person acquires biological characteristic and sends the biological characteristic to the platform according to the prompt of the notification short message; and E, the platform sets the state corresponding to an ID related to an information sending terminal as 'completed' after receiving and verifying the information. The social-insurance-oriented remote biological characteristic acquiring method may guarantee the insured people's reception of the notification short messages and the reality and effectiveness of the acquired biological characteristics.
Owner:CETC SATELLITE NAVIGATION OPERATION SERVICE
Curve speed warning method based on vehicle-road coordination
InactiveCN103745607BSimple layingEfficient early warningArrangements for variable traffic instructionsThe InternetCarriageway
The invention discloses a cooperative vehicle infrastructure-based curve speed warning method, which comprises the following steps: putting a road side unit at a curve, broadcasting out curve information periodically, and judging whether a vehicle heads for the curve or not in advance by a vehicle terminal according to the information of the vehicle and the received curve information; giving out the distance to the curve and the speed-limit prompt of the curve in advance if the vehicle heads for the curve; giving out the speed-limit prompt of the curve and detecting whether the vehicle is overspeed or not in real time if the condition that the vehicle drives into the curve is detected, and giving out overspeed warning if the vehicle is overspeed to remind a driver of driving at a safety speed; relieving the warning when the condition that the vehicle puts off the curve is detected. According to the method, the limiting speed of the curve can be given out in advance, and the condition that the vehicle drives into the curve and puts off the curve can be efficiently and reliably judged; written or audio warning is given out when the vehicle is overspeed, and therefore, a selectable simple scheme is provided for the auxiliary driving safety application of Internet of vehicles.
Owner:SUZHOU INST FOR ADVANCED STUDY USTC
Fragmented asynchronous conference system
ActiveCN104579710BMake sure to receiveAvoid missingSpecial service provision for substationIdle timeService cloud
Owner:蚌埠甜啦啦企业管理有限公司
Electronic shelf labelling system with a shelf edge strip sub-system
PendingCN113994723ACheap manufacturingRealize the display effectPower managementStatic indicating devicesTelecommunicationsElectronic shelf label
The invention relates to an electronic shelf labelling system, wherein the system has a server which is designed to individually address a plurality of shelf labels in order to communicate data with them in an addressed manner, and wherein the system has at least one access point which is connected to the server and is designed for radio communication of the data with the shelf labels, and wherein the system has a near-field communication (NFC) sub-system on a shelf edge strip of a shelf, wherein the NFC sub-system is characterised in such a way that the shelf edge strip has an NFC reader which is designed for radio-based communication with the access point, and in such a way that at least one conductor loop is provided which is connected to the NFC reader, formed along the shelf edge strip and functioning for NFC communication with an NFC-enabled shelf label, wherein at least one NFC-enabled shelf label is attached to the shelf edge strip corresponding to the conductor loop, and wherein the NFC reader is designed for NFC communication of the data with the shelf label addressed by the server.
Owner:SES IMAGOTAG GMBH
A system-level single-event monitoring and protection method for a spaceborne GPS receiver
ActiveCN106908811BEasy to operateEliminate exceptionsSatellite radio beaconingMonitoring statusComputer monitor
The invention provides a system-level single event monitoring and protecting method for a satellite-borne GPS receiver. After receiving an 'enable' state of an autonomous monitoring function, a satellite-borne computer monitors the working state of a satellite-borne GPS receiver; if the working state is normal, the satellite-borne computer continuously monitors (1) whether the TIC count value of the satellite-borne GPS receiver changes in a first preset time; if the TIC count value changes in the first preset time, the satellite-borne computer monitors (2) whether the orbit determination data valid markers of the satellite-borne GPS receiver are all 'valid' in a second preset time; if the orbit determination data valid markers are all 'valid' in the second preset time, the satellite-borne computer monitors (3) whether the autonomous monitoring state of the satellite-borne GPS receiver is 'normal' for multiple consecutive times; and if any of (1) to (3) is not satisfied, the satellite-borne GPS receiver is restarted, and thus, the influence of single event upset on the satellite-borne GPS receiver is eliminated. The method improves the anti-single-event performance of satellite-borne GPS receivers from the system level, and effectively realizes single event monitoring and protecting for satellite-borne GPS receivers.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
Far-field eddy current probe and method for dissimilar steel weld defect detection
PendingCN114878681AAvoid signal interferenceEnsure motivationNuclear energy generationMaterial magnetic variablesEngineeringWeld seam
The invention discloses a far-field eddy current probe and method for dissimilar steel weld defect detection, the far-field eddy current probe comprises an excitation unit, a detection unit, a shielding unit, a signal connection joint and a probe shell, the excitation unit is formed by placing an excitation coil in an excitation magnetic conduction structure; the detection unit is formed by tightly and circumferentially winding a detection coil on the peripheral surface of a detection magnetic conduction structure, and the shielding unit is formed by a multi-layer composite shielding structure. A special conformal probe structure is developed for a complex pipeline structure at a dissimilar steel weld joint, detection can be completed in a narrow space, and signal interference caused by a reducing section and a thermocouple is avoided; multi-signal channel time-sharing detection is adopted, excitation units and detection units between adjacent signal channels are placed in opposite directions, and it is ensured that eddy current signals can be excited and received by the two sides of a dissimilar steel welding seam; during detection, the probe rotates a circle around the dissimilar steel weld joint to realize far-field eddy current detection of weld joint defects, and the detection efficiency is improved.
Owner:XIAN THERMAL POWER RES INST CO LTD +1
Multimedia message sending method and apparatus for television MMS system
InactiveCN101459814ASolve the problem of receiving failureMake sure to receiveDigital non-picture data transmissionDigital televisionSet top box
The invention provides a multimedia message sending method for a television multimedia message system, which comprises the following steps: a television broadcast station divides each of a plurality of the multimedia messages into a plurality of sections, interweaving a plurality of the sections of each of the multimedia messages, and then sending a plurality of the sections after the weaving. The method solves the problem that the processing speed of a set-top box of a digital television terminal can not follow the sending speed of the multimedia message, thereby the multimedia massages can not be received, and the method further realizes the spacing sending of a plurality of the sections of the same multimedia messages, thereby guaranteeing the successful receiving of the multimedia massage and greatly improving the receiving rate of the content of the multimedia messages.
Owner:SUMAVISION TECH CO LTD
Multimedia message sending method and apparatus for television MMS system
InactiveCN101459814BSolve the problem of receiving failureMake sure to receiveDigital non-picture data transmissionDigital televisionSet top box
Owner:SUMAVISION TECH CO LTD
A multi-hop transmission method and device
ActiveCN109474913BExpand the transmission rangeGuaranteed to receiveNetwork topologiesWireless commuication servicesComputer networkTelecommunications
An embodiment of the present invention provides a multi-hop transmission method and device, the method comprising: determining the role of the current terminal UE in the multi-hop network of the Internet of Vehicles; determining the role of the current UE's message in the multi-hop network of the Internet of Vehicles The multi-hop transmission range or the number of multi-hops; determine the transmission resources required to transmit the message; according to the role of the current UE and the transmission resources, transmit the message, the location of the current UE, and the multi-hop transmission range or The message and the number of multi-hops are transmitted to the neighboring UE adjacent to the current UE, and the transmission range of the message in the Internet of Vehicles is increased through the multi-hop transmission, so as to ensure that the surrounding UEs of the current UE can receive the messages sent by the current UE. information.
Owner:CHINA MOBILE COMM LTD RES INST +1
Multi-hop transmission methods and devices
ActiveCN109474913AExpand the transmission rangeGuaranteed to receiveNetwork topologiesWireless commuication servicesTelecommunicationsThe Internet
The embodiment of the invention provides multi-hop transmission methods and devices. The method includes: determining a role of a current terminal UE in a multi-hop internet of vehicles; determining amulti-hop transmission range or multi-hop frequency of a message of the current UE in the multi-hop internet of the vehicles; determining transmission resources required for transmitting the message;and transmitting the message, a location of the current UE and the multi-hop transmission range or the message and the multi-hop frequency to neighboring UE, which is adjacent to the current UE, according to the role of the current UE and the transmission resources. The transmission range of the message in the internet of the vehicles is enlarged through multi-hop transmission, and effect that surrounding UE of the current UE can receive the message issued by the current UE is ensured.
Owner:CHINA MOBILE COMM LTD RES INST +1
A distributed control system and method for an engine test
ActiveCN103869791BLow costGood function expandabilityTotal factory controlProgramme total factory controlPilot systemIp address
The invention belongs to the technical field of aerospace engineering, and relates to an engine test system and method, in particular to an engine test collecting-distributing type control system and method. The engine test collecting-distributing type control system comprises an upper computer based on the windows system, a plurality of lower computers based on the Linux system, an network switch for achieving interaction between the upper computer and the lower computers, a corresponding driving unit and a corresponding acquisition unit. The engine test collecting-distributing type control system guarantees accurate and real-time transmission of data through the methods that the upper computer and the lower computers adopt a TCP / IP communication protocol, the inventor defines fields of a protocol packet, and the protocol packet adopts IP addresses and a packet head which are bound for testing. By means of the engine test collecting-distributing type control system and method, the problems of high cost and difficult later maintenance and function extension and integration due to the fact that an engine test control system in the technical field of aerospace engineering needs to be imported are solved.
Owner:XIAN AEROSPACE PROPULSION TESTING TECHN INST
Subscriber station for serial bus system and method for communication in serial bus system
PendingCN114731308ASave extra fieldIncrease effective data rateCode conversionTelegraphic message interchanged in timeData fieldEngineering
A subscriber station (10; 30) for a serial bus system (1) and a method for communication in a serial bus system (1) are provided. The subscriber station (10, 30) has a communication control device (11, 31) for controlling communication of the subscriber station (10, 30) with at least one other subscriber station (10, 20, 30) of the bus system (1), and a transmitting / receiving device (12; 32), which is designed to transmit data to the communication control device (11; 31) to a bus (40) of the bus system (1), and which is designed to serially receive signals from the bus (40) of the bus system (1), the communication control device (11; 31) is designed to generate a transmission signal (TXD) in accordance with a frame (450) and to insert a header checksum (HCRC) into the frame (450), in which only bits of a frame header located prior to a data field (455) set for valid data in the frame (450) are included, 31) is designed in such a way that the communication control device (11; 31) is designed to use, for the calculation of the header checksum (HCRC), a predetermined start value (RS) and a predetermined checksum polynomial (CRCP), in which case the intermediate result of the calculation of the header checksum (HCRC) for the portion of the frame header in which the dynamic padding bits are used is not equal to a zero vector.
Owner:ROBERT BOSCH GMBH
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