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38results about How to "Fault detection" patented technology
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Electric power circuit fault detecting system
InactiveCN102749554AFault detectionEasy to detectTransmission systemsFault locationFault indicatorReal-time data
The invention discloses an electric power circuit fault detecting system which is used for detecting electric power circuit faults and conducting remote alarming. The electric power circuit fault detecting system comprises a digital fault indicator, a data collector and a main controller. The digital fault indicator is used for detecting real-time data of the electric power circuit and outputting state information of the electric power circuit according to the real-time data. The data collector and the digital fault indicator form a communication network through short-distance wireless modulation, and the data collector is used for collecting the state information sent by the digital fault indicator and turning the state information into a data packet. The main controller is used for receiving the data packet sent by the data collector and judging fault points and types according to information in the data packet. The electric power circuit fault detecting system can achieve remote alarming of the electric power circuit faults and detecting of various electric power circuit faults.
Owner:张忠华
Fault detection technology of server operating system
InactiveCN101877039AFault detectionDoes not affect business continuityPlatform integrity maintainanceOperational systemVirus
The invention provides a fault detection technology of a server operating system. The technology comprises the following contents: (1) carrying out file integrity detection by comparing feature codes, and confirming the position of a file to be modified; (2) replacing the file to be modified with a normal file, and then carrying out forced access control on an object file by using the system reinforcement technology; and (3) recording a process item to change the file and a specific absolute path, detecting the destructive action of a malicious process, and establishing a scheme for recovering the server based on the action of the process. Compared with traditional products such as fire walls, antivirus software and the like, the fault detection technology of the server operating system can quickly process faults of the server operating system and locate fault points by forced access control, and can quickly detect and locate the faults caused by attacks to the server operating system, including known or unknown virus programs, ROOTKIT-level backdoor trojan and the like.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Method for detecting Solaris system fault by utilizing mandatory access control
InactiveCN101827091AFast failureFault detectionData switching networksOperational systemSecurity Measure
The invention provides a fault detection technology of a Solaris system, and a Solaris operating system fault is rapidly processed and a fault point is rapidly positioned through mandatory access control by the technology. Compared with a traditional minimum authority model safety measure, the technology for detecting the system fault by utilizing the mandatory access control rapidly detects and positions the fault caused by an attack for the Solaris system, including a known or unknown virus program, an ROOTKIT-level backdoor Trojan horse and the like. The mandatory access control (MAC) is divided into two parts: one part is the access control for a document on the basis of a user, the other part is the access control for the document on the basis of a process, and the user is bound when the process operates, so that the process per se is also a subject, and when an object is protected by a safety mark, even a root user can not access the object unless having the authority of the MAC.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Traffic light fault intelligent detection device and detection method thereof
PendingCN108417072AImprove comprehensivenessResolve accuracyTraffic control supervisionTraffic signalControl system
The invention discloses a traffic light fault intelligent detection device and a detection method thereof. The device comprises a crossroad detection terminal and a fault detection alarm server, the fault detection alarm server is used for receiving information of the crossroad detection terminal, the crossroad detection terminal comprises a traffic signal detection module, a voltage sensor, a current sensor, a signal machine state detection module, a controller and a communication module, an input end of the traffic signal detection module is connected with a traffic signal control system anda crossroad traffic signal machine, an output end of the traffic signal detection module is connected with a crossroad traffic light, the voltage sensor is used for detecting system voltage, the current sensor is used for detecting system current, the signal machine state detection module is used for detecting a signal machine state, the controller is used for receiving and processing informationof the traffic signal detection module, the voltage sensor, the current sensor and the signal machine state detection module, the communication module is used for transmitting processed information to the server, the fault detection alarm server comprises an information notification module and a client, the client is used for receiving information notifications, the detection device is comprehensive in detection, multifaceted personnel monitoring is facilitated, detection accuracy is ensured by the detection method, and false alarm rate and missing report rate are further reduced.
Owner:杭州普乐科技有限公司
Method for heating liquid in an electric kettle
The invention relates to an electric kettle for heating water whereby the kettle has an electric heating element with an electronic regulator which detects the temperature and the duration of heating via sensors. The kettle comprises a non volatile electronic memory wherein predefined characteristic data is stored for verifying the sensor information. The invention also relates to a method for regulating a heating process for a kettle of said type, comprising the following steps: switching on a heating element; measuring the increase in temperature DELTA T at a predetermined time interval ttot-to; switching off the heating element if the measured temperature increase DELTA T is less than or equal to Tmin; measuring the temperature T at the time tmax; switching off the heating element if the measured temperature Ttmax is greater than the stored temperature Tmax; regular completion of the heating process. The invention enables a simple and secure detection of and response to an error function occurring in the heating element or the electronic regulator in the electric kettle.
Owner:BRAUN GMBH
Carbon dioxide laser power supply
InactiveCN103208731AFault detectionLaser detailsCarbon dioxideElectrical and Electronics engineering
The invention provides a carbon dioxide laser power supply which comprises a power supply unit for transforming power distribution of a factory so as to supply power to a carbon dioxide laser, a laser fault detecting unit for detecting faults of the carbon dioxide laser and a control processing unit. When the laser fault detecting unit detects the faults of the carbon dioxide laser, output of the carbon dioxide laser power supply is cut off according to a detecting result of the laser fault detecting unit.
Owner:BEIJING RECI LASER TECH
Fuel injection control system for internal combustion engine
ActiveCN103502622AFault detectionElectrical controlInternal combustion piston enginesControl systemEngineering
An object of the invention is to detect, in a fuel injection control system for an internal combustion engine equipped with a low pressure fuel pump and a high pressure fuel pump, a failure in the fuel injection system including the high pressure fuel pump with high accuracy. To achieve the object, in the fuel injection control system for an internal combustion engine equipped with a low pressure fuel pump and a high pressure fuel pump according to the invention, when a discharge failure in the high pressure fuel pump is detected, the discharge pressure of the low pressure fuel pump is increased. Then, it is determined whether a discharge failure in the high pressure fuel pump occurs or not. If occurs, it is concluded that the fuel injection system including the high pressure fuel pump is in failure.
Owner:TOYOTA JIDOSHA KK
Mutual detection positioning system and method and plugging system
The invention provides a mutual detection positioning system, a mutual detection positioning method and a plugging system. The mutual detection positioning system comprises a raster straight-line displacement sensor and a controller. When a plugging device moves up and down in a vertical direction, the raster straight-line displacement sensor detects the displacement of the plugging device, and outputs pulse output signals corresponding to the displacement of the plugging device. A connecting part is arranged between the plugging device and a stepping motor arranged in a worktable, and the stepping motor drives the plugging device to move up and down through the connecting part. The controller is connected with the stepping motor and a rotary raster encoder through circuits, and used for comparing the pulse number N1 of driving signals input to the stepping motor and the pulse number N2 of output signals of the raster straight-line displacement sensor and recognizing the working condition of the puller. The embodiment of the invention can recognize the current state of the plugging device, and can also detect the fault of the system.
Owner:NINGBO YINGMING ELECTRIC TECH +1
Refrigerating equipment defrosting control method and device and refrigerating equipment with device
InactiveCN106568251AAccurate defrostingFault detectionCorrosion preventionRefrigeration safety arrangementEmbedded systemFrost
The invention provides a refrigerating equipment defrosting control method and a device and refrigerating equipment with the device. The method comprises the following steps: an acquiring step: evaporator images are acquired under illuminating conditions; a judging step: the evaporator frost quantity is judged according to the acquired evaporator images; and a defrosting step: a defrosting heater is controlled to start or stop defrosting according to the evaporator frost quantity. On the basis of accurately judging the evaporator frost quantity, the accurate defrosting of an evaporator is realized, and the cost is low; and in addition, when the refrigerating equipment is primarily electrified, the evaporator faults can be detected.
Owner:GREE ELECTRIC APPLIANCES INC
Server state monitoring method and system
InactiveCN109981381AAccurate fault detectionSolve technical problemsHardware monitoringData switching networksColor changesLocation determination
The invention discloses a server state monitoring method and system, and the method comprises the steps: detecting the color change condition of a front panel indicating lamp of a server in a cabinetthrough a detection module; determining whether an indicating lamp with abnormal flickering exists or not according to the color change condition of a front panel indicating lamp of the server in thecabinet; if yes, determining the position of an indicating lamp with abnormal flickering and the position of a corresponding server according to preset relevant parameters of the server, wherein the relevant parameters of the server comprise the brand model of the server, the number of the servers and the arrangement position of a detection module; and determining a fault server and a fault type according to the position of the indicating lamp and the corresponding server position. The method can accurately reflect server faults in real time, can automatically inform related personnel, and hasthe advantages of high accuracy, real-time feedback and low maintenance cost.
Owner:HARBIN ANTIY TECH
Reliability index evaluation method of electronic control system of instrument
ActiveCN110531735ATest performance parametersFault detectionElectric testing/monitoringEnvironmental/reliability testsAcceleration factorElectronic control system
The invention discloses a reliability index evaluation method of an electronic control system of an instrument. The method includes: carrying out field testing on an electronic complete machine, to which an electronic control system belongs, in a normal-temperature environment, and recording performance parameters after field testing; determining an acceleration factor of the electronic complete machine; calculating duration of laboratory testing of the electronic complete machine according to the acceleration factor and field testing duration of the electronic complete machine; carrying out laboratory testing on the electronic complete machine under high-temperature environmental stress, and recording performance parameters after laboratory testing; analyzing the performance parameters after field testing of the electronic complete machine and the performance parameters after laboratory testing, and calculating the number of testing failures and failure categories of the electronic complete machine; and determining reliability of the electronic control system according to the number of the testing failures and the failure categories of the electronic complete machine. Through themethod, a testing cycle can be shortened, product failures can also be accurately detected, better improvement of research and development personnel on electronic control systems of products is facilitated, and product quality is improved.
Owner:广东科鉴检测工程技术有限公司
State monitoring system and wind power generation system provided with same
InactiveCN106574606ADetect failures earlyFault detectionGas-turbine engine testingWind motor controlNacelleMonitoring system
Owner:NTN CORP
Automatic monitoring and fault positioning system of single-fiber three-way multiplexer
ActiveCN101908928ACheck running statusGuaranteed uptimeElectromagnetic transmissionMultiplexerSingle fiber
The invention relates to an automatic monitoring and fault positioning system of a single-fiber three-way multiplexer, which comprises a first sampling circuit, a second sampling circuit, a third sampling circuit and a fourth sampling circuit, wherein the first sampling circuit is used for sampling an optical signal at the front end of the detected single-fiber three-way multiplexer, and the second sampling circuit, the third sampling circuit and the fourth sampling circuit are respectively used for sampling signals with the wavelengths of 1550nm, 1490nm and 1310nm at the rear end of the detected single-fiber three-way multiplexer; the first to the fourth sampling circuits are connected with a central controller, and the central controller is used for reading the numerical value of each sampling circuit and finishing the judging and positioning working of faults. The fault of the single-fiber three-way multiplexer can be detected in real time.
Owner:ZHEJIANG UNIV OF TECH
Mutual detection positioning system and method and plug-in system
InactiveCN101655584AFault detectionCoupling light guidesConverting sensor output opticallyPulse numberControl theory
The invention provides a mutual detection positioning system, a mutual detection positioning method and a plug-in system, wherein the mutual detection positioning system comprises a stepping motor, arotary raster encoder and a controller, wherein the stepping motor is installed on a worktable, the rotary raster encoder is fixedly connected with a power output end of the stepping motor, the controller is connected with the stepping motor and the rotary raster encoder through circuits, and the controller is used for comparing the pulse number N1 of driving signals input to the stepping motor and the pulse number N2 of output signals of the rotary raster encoder and judging the working condition of the stepping motor, so as to recognize the working condition of a puller installed in the worktable through the transmission of the stepping motor. The embodiment of the invention can recognize the current state of the puller, and can also detect the faults of the system.
Owner:NINGBO YINGMING ELECTRIC TECH +1
Broadband-based network detection method
The present invention provides a broadband-based network detection method, and belongs to the broadband fault automatic detection technology field. The method of the present invention comprises the steps of 1) checking the connectivity, 2) detecting the network connectivity, 3) detecting the setting of a proxy server, 4) detecting the setting of a firewall and 5) detecting the state of a network card. According to the present invention, a simple and effective method is used to detect whether a far-end service is connected, and by detecting the proxy server, the firewall, the network card parameters and the DNS data automatically step by step, the network fault reasons are positioned rapidly, and on the basis, the network faults are repaired timely.
Owner:SHANDONG INSPUR COMML SYST CO LTD
Filter failure detection device for internal combustion engine
InactiveCN103270263AHigh-precision detectionFault detectionInternal combustion piston enginesExhaust apparatusExternal combustion engineSubstance amount
A filter failure detection device for an internal combustion engine more accurately detects a failure of a filter (3). The filter failure detection device for an internal combustion engine is provided with: the filter (3) provided in the exhaust path (2) of the internal combustion engine (1) and collecting substances contained in the exhaust gas; a substance amount detection section (4) provided in the exhaust path (2) at a position downstream of the filter (3) and detecting the amount of the substances in the exhaust gas; a flow speed detection section (10) for detecting or estimating the flow speed of the exhaust gas passing through the filter (3); and a determination section (10) for determining that the filter (3) has a failure when the ratio of the amount of change in the amount of the substances to the amount of change in the flow speed of the exhaust gas increases as the flow speed of the exhaust gas passing through the filter (3) increases.
Owner:TOYOTA JIDOSHA KK
Full-intelligent fault detection device for water purifier
PendingCN114262091AEfficient detection of faultsFault detectionMultistage water/sewage treatmentFiltration separationEnvironmental engineeringPollution
The invention relates to the field of water purifier auxiliary equipment, in particular to a water purifier full-intelligent fault detection device which comprises a water purifier, one end of the water purifier is rotationally connected with a driving mechanism, the driving mechanism extends into the water purifier, a transmission mechanism is arranged in the water purifier, and the driving mechanism is matched with the transmission mechanism; a pollution discharge device and a control mechanism are slidably arranged in the water purifier, the pollution discharge device is matched with the control mechanism, the pollution discharge device is fixedly connected with the transmission mechanism, one end of the water purifier is connected with a purification device, and the device can effectively detect faults of the water purifier caused by blockage of a filter screen due to excessive accumulation of impurities; meanwhile, impurities can be discharged to repair the water purifier.
Owner:山东伟思创科技有限公司
Filter assembly
ActiveCN101163931AMonitor alert parametersReliable monitoringMechanical apparatusSpace heating and ventilation safety systemsResistive sensorsMechanical engineering
Owner:GIANUS
Method for monitoring conditions of equipment machine table
ActiveCN103871934ATo achieve the purpose of real-time monitoringAvoid exceptionSemiconductor/solid-state device manufacturingComputer science
The invention provides a method for monitoring conditions of an equipment machine table. An EAP server is used for collecting operation condition data of equipment and inputting the data into a database, the data are processed and analyzed through the server, and therefore whether a control substrate is abnormal or not is judged, the purpose of monitoring the control substrate in real time is achieved, faults are detected in time, technical personnel are informed in time to handle the faults correspondingly, larger damage is avoided, the use rate of the equipment machine table is improved, and certain economical benefits are achieved.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP
A Reliability Index Evaluation Method of Instrument Electronic Control System
ActiveCN110531735BTest performance parametersFault detectionElectric testing/monitoringEnvironmental/reliability testsControl systemElectronic control system
The invention discloses a reliability index assessment method for an electronic control system of an instrument, wherein the method includes: in a normal temperature environment, conducting a field test on an electronic complete machine belonging to the electronic control system, and recording the performance parameters after the field test; Acceleration factor of the complete electronic machine; according to the acceleration factor and the field test duration of the complete electronic machine, calculate the duration of the laboratory test of the complete electronic machine; under the stress of high temperature environment, carry out the laboratory test of the complete electronic machine, and record the laboratory test After analyzing the performance parameters after the field test of the electronic complete machine and the performance parameters after the laboratory test, calculate the number of test faults and fault categories of the electronic complete machine; reliability of the control system. The invention can not only shorten the test period, but also accurately detect the fault of the product, which is beneficial to the R&D personnel to better improve the electric control system of the product and improve the quality of the product.
Owner:广东科鉴检测工程技术有限公司
Method for monitoring the status of equipment and machines
ActiveCN103871934BTo achieve the purpose of real-time monitoringAvoid exceptionSemiconductor/solid-state device manufacturingComputer scienceUtilization rate
The invention provides a method for monitoring conditions of an equipment machine table. An EAP server is used for collecting operation condition data of equipment and inputting the data into a database, the data are processed and analyzed through the server, and therefore whether a control substrate is abnormal or not is judged, the purpose of monitoring the control substrate in real time is achieved, faults are detected in time, technical personnel are informed in time to handle the faults correspondingly, larger damage is avoided, the use rate of the equipment machine table is improved, and certain economical benefits are achieved.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP
Fuel Injection Control System for Internal Combustion Engine
ActiveCN103502622BFault detectionElectrical controlInternal combustion piston enginesControl systemHigh pressure
An object of the present invention is to accurately detect failures in the fuel injection system including the high-pressure fuel pump in a fuel injection control system for an internal combustion engine including a low-pressure fuel pump and a high-pressure fuel pump. In order to solve this problem, in the fuel injection control system of an internal combustion engine provided with a low-pressure fuel pump and a high-pressure fuel pump, the present invention determines whether or not the failure occurs after increasing the discharge pressure of the low-pressure fuel pump when a discharge failure of the high-pressure fuel pump is detected. A discharge failure of the high-pressure fuel pump is detected, and when the discharge failure of the high-pressure fuel pump occurs, it is determined that the fuel injection system including the high-pressure fuel pump is malfunctioning.
Owner:TOYOTA JIDOSHA KK
Elevator installations and storage media
Owner:HITACHI LTD
Low-voltage circuit breaker
ActiveCN105047493AFault detectionCircuit-breaking switch detailsProtective switch operating/release mechanismsEngineeringContact system
The invention discloses a low-voltage circuit breaker. The low-voltage circuit breaker comprises a shell, a contract system which is connected with a circuit, a tripping mechanism which drives the contact system to break the circuit and an arc-extinguishing device which conducts arc extinguishing on the contact system, the tripping mechanism comprises a circuit module which detects circuit faults and an operation module which drives the contact system to break the circuit, the operation module comprises an electromagnetic component and an action component, the electromagnetic component is connected with the circuit module in a coupled mode, and when the circuit breaker is tripped, the circuit module drives the electromagnetic component to drive the action system to make the contact system break the circuit. According to the low-voltage circuit breaker, by means of the arrangement of the circuit module, the circuit faults can be effectively detected; by means of the the arrangement of the electromagnetic component and the action component, when the circuit module detects the circuit faults, the electromagnetic component and the action component can effectively drive the contact system to break the circuit, and the influences of the environment and the temperature do not exist.
Owner:乐清市乐翔电气有限公司
Automatic monitoring and fault positioning system of single-fiber three-way multiplexer
ActiveCN101908928BFault detectionPrecise positioningFault recovery arrangementsMultiplexerSingle fiber
The invention relates to an automatic monitoring and fault positioning system of a single-fiber three-way multiplexer, which comprises a first sampling circuit, a second sampling circuit, a third sampling circuit and a fourth sampling circuit, wherein the first sampling circuit is used for sampling an optical signal at the front end of the detected single-fiber three-way multiplexer, and the second sampling circuit, the third sampling circuit and the fourth sampling circuit are respectively used for sampling signals with the wavelengths of 1550nm, 1490nm and 1310nm at the rear end of the detected single-fiber three-way multiplexer; the first to the fourth sampling circuits are connected with a central controller, and the central controller is used for reading the numerical value of each sampling circuit and finishing the judging and positioning working of faults. The fault of the single-fiber three-way multiplexer can be detected in real time.
Owner:ZHEJIANG UNIV OF TECH
Elevator control system
The invention relates to an elevator control system which can detect a speed monitor control device fault by an easier structure. The speed monitor control device respectively outputs a speed information signal, when an elevator speed operated by the output signal of a first speed detector reaches a first speed below a rated speed, and reaches a second speed below the rated speed and faster than the first speed. In addition, the elevator control device detects the abnormity of the first speed detector according to the speed information signal and the elevator speed operated by the elevator control device according to the output signal of the second speed detector.
Owner:HITACHI LTD +2
A low voltage circuit breaker
ActiveCN105047493BFault detectionCircuit-breaking switch detailsProtective switch operating/release mechanismsLow voltage circuitsEngineering
The invention discloses a low-voltage circuit breaker. The low-voltage circuit breaker comprises a shell, a contract system which is connected with a circuit, a tripping mechanism which drives the contact system to break the circuit and an arc-extinguishing device which conducts arc extinguishing on the contact system, the tripping mechanism comprises a circuit module which detects circuit faults and an operation module which drives the contact system to break the circuit, the operation module comprises an electromagnetic component and an action component, the electromagnetic component is connected with the circuit module in a coupled mode, and when the circuit breaker is tripped, the circuit module drives the electromagnetic component to drive the action system to make the contact system break the circuit. According to the low-voltage circuit breaker, by means of the arrangement of the circuit module, the circuit faults can be effectively detected; by means of the the arrangement of the electromagnetic component and the action component, when the circuit module detects the circuit faults, the electromagnetic component and the action component can effectively drive the contact system to break the circuit, and the influences of the environment and the temperature do not exist.
Owner:乐清市乐翔电气有限公司
A kind of AC and DC fan control device
ActiveCN105065313BFault detectionPump controlNon-positive displacement fluid enginesLow speedElectric machine
The invention belongs to the field of electric appliance control, in particular to an AC / DC fan control device. Compared with the traditional fan control circuit, the signal input terminal, the first optocoupler relay and the second optocoupler relay are added, and the signal input terminal is connected to the first integrated chip through the first optocoupler relay to realize pulse speed regulation input. An integrated chip adjusts the rotation speed of the motor according to the duty cycle of the pulse. The higher the duty cycle, the faster the speed. On the contrary, the lower the duty cycle, the slower the speed. It can be adjusted from stop to full speed; The relay is connected to the signal input terminal to send parameters such as the motor’s rotation speed to the signal input terminal. By comparing the signal sent by the signal input terminal with the feedback signal, the fault detection of the motor can be realized.
Owner:SANJU TECH MOTOR SHENZHEN CO LTD +1
A method for evaluating path congestion in a Clos network
InactiveCN109039930AEfficiently detect congestionEfficiently detect faultsData switching networksDistributed computingClos network
The invention provides a method for evaluating path congestion of a Clos network, which accurately judges the path congestion degree by utilizing RTT and ECN signals and combining the advantages of the RTT and ECN signals. Compared with TTL, RTT, ACK or the method for judging path congestion by transformation trend thereof, the technical scheme provided by the invention reduces misjudgment and canprovide more detailed path state display. On this basis, the invention also provides a method for evaluating a path state, a method for comparing a path congestion degree and a load balancing methodbased on the above.
Owner:CLUSTAR TECH LO LTD
Power supply control device and power supply control method
A power supply control device and a power supply control method capable of detecting a switch-related failure properly are provided. A power supply control device controls power supply via a switch. An output unit of a microcomputer produces a switching signal that instructs the switch to turn alternately on and off. A detection circuit reports a failure related to the switch if an accumulated period has reached or exceeded a threshold period. The accumulated period is accumulation of one or more periods when the switching signal instructs the switch to turn on but a comparator does not detectan on-state of the switch.
Owner:AUTONETWORKS TECH LTD +2
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