188results about How to "Facilitate failure analysis" patented technology

Test result data can be classified across multiple tests, test scenarios, and lab runs. Test result files can be parsed by extracting information from them. Extracted information can be compared to failure information in a database. If a match is found, the extracted information can be linked to the failure, creating a history for each failure. New failures can be identified when no match is found. Failure data can be cross-referenced to further aid in results analysis. For each failure, lists of useful information can be accessed. Analysis information can be associated with failures, for example whether the failure is new, occurred previously, is for a different reason than expected, or has been added to a baseline of expected failures. A Graphic User Interface (“GUI”) is also provided to expose the analyzed results to the result analyzers.

The invention relates to a safety JTAG module and a method for protecting security of information inside a chip, wherein the safety JTAG module comprises a nonvolatile medium (206), a loading circuit (205), a security attribute control register (214), a TAP controller (201), two selectors (207 and 211), a switch (203), a password authentication module and a logic processing module; the TAP controller (201) and the two selectors (207 and 211) are connected between a JTAG port (1) and a protected object inside the chip; the switch (203) is switched by the control of a timer (202); the password authentication module is used for authenticating whether a clear-text password input by a user is accordant with a fuzzification password or not; and the logic processing module is used for logically processing an authentication result output by the password authentication module and an indication signal output by the security attribute control register (214) and outputting an enable signal to the two selectors (207 and 211) so as to control whether the JTAG port (1) is allowed to be connected with the protected object inside the chip through the TAP controller (201) or not. The invention ensures the security and the convenience of an SOC chip in testing and debugging processes, thereby protecting the security of data inside the chip.

The present invention pertaining to the field of the transformer field provides a device for monitoring the ground current of an electric power transformer iron chip for solving the problem of monitoring the ground current of the iron chip. The device in the present invention consists of a current transformator, a signal processing circuit, DSP, a current-limiting resistance network and the control circuit thereof. Said current-limiting resistance network includes a group of resistances and four relays. The first resistance, the second resistance and the third resistance are connected to the fouth resistance and the normally closed contacts of the first relay to form a parallel circuit after being connected to the normally closed contacts of the control relay in series and are connected to the transformer iron chip ground loop in series. The windings of the four relays are connected to the output end of the control circuit and the input end of the control circuit is connected to the data output end of DSP. In the present invention, the ground current of an electric power transformer iron chip can not only be monitored in real time, but also be limited in a defined range automatically, thus, the safe running of the electric power transformer can be ensured.

Disclosed is an automation control method for tunnel lining construction. A control system integrates all information collecting and control procedures of a traveling mechanism, a hydraulic system, aconcrete distribution device, a vibrating device, a temperature sensor, a flowmeter, a video monitor and a pressure sensor, is equipped with a GPRS wireless data transmission module, and can collect and upload information in the casting process of a tunnel lining to a project department monitoring room. The distribution device can be connected with a plurality of distribution pipes in series, thetemperature sensor is used for detecting the concrete casting temperature, and the flowmeter is used for collecting the concrete casting quantity and implementing automatic control over casting. The video monitor monitors real-time work picture information, and collects and transmits the real-time work picture information to the project department monitoring room. The vibrating device achieves vibrating automatic control operation for concrete. The pressure sensor detects and collects pressures of all points in the concrete casting process and displays the casted height of the concrete. The control system conducts concentration analysis on data collected in the casting process of the tunnel lining, gives out a control instruction, and uploads the detected data to the project department monitoring room.

A device for transmitting telemetric and telecontrolled data between a 1553B bus and a satellite interior equipment bus comprises a 1553B bus module, a singlechip module and a satellite equipment bus management module. The satellite interior equipment bus management module is not used in the traditional design method, and telemetric and telecontrolled management of satellite interior equipment is realized by using a singlechip only; along with increasing of the number of satellite-borne equipment, the complexity of control logic of the singlechip is increased, and the reliability of a system is affected; and moreover, because the singlechip works in a serial mode, the singlechip only can acquire and process one telemetric parameter every time, the updating period of the telemetric parameters of the whole satellite is longer and longer, and detection and isolation of faults are affected. The device can overcome the shortcomings; the design of a singlechip system is simplified by the satellite interior equipment bus management module, and the control and management capability of the system on telemetry and telecontrol to the satellite equipment is improved.

The invention vides a device and a method for monitoring the CPLD (Complex Programmable Logic Device) state of a server through a BMC (Baseboard Management Controller). The device comprises a BMC, a CPLD and a storage module, wherein the BMC is connected with the CPLD for reading and detecting the data of a register and a sensor in the CPLD and judging whether the data of the register and the sensor is within a working set range or not; the BMC is also used for recording the exceptional working state of the CPLD; and the storage module is independently connected with the BMC and the CPLD for carrying out temporary storage on the monitoring information of the CPLD state. By use of the method for monitoring the CPLD state of the server through the BMC, the BMC establishes data interaction with the CPLD through a JTAG (Joint Test Action Group) interface and an I2C (Inter-Integrated Circuit) bus, the collection of an important monitoring signal can not be missed, and the CPLD state information of the server can be efficiently and comprehensively monitored.

In packet transfer network based on T-MPLS technique, the disclosed method can implement link track for tracking user's traffic flow. The method includes following steps: (1) after receiving configuration command of starting up link track (LT) down sent from network management, the starting point maintenance entity point (MEP) initiates LT request; destination address is a MEP address pointed by network management; (2) nodes requested by LT return LT responses back to starting point MEP; (3) based on LT responses, the starting point MEP reports link information to network management. The method reflects actual connected state of traffic in current T-MPLS network and adjacency relation between nodes effectively. The invention can determine whether prospective traffic flow is matched to actual traffic flow so that network manager can carry out fault analysis and fault location better.

The present invention discloses a reading / writing system of single board information and method. The main control board of the invented system includes test control module, it is connected with CPU of main control board; the service board includes execution module connected with memory of the service board, said execution module is independent from CPU of service board or logic device; the described test control module is connected with the described execution module by means of interconnection line being in backboard. Besides, said invention also provides the concrete steps of implementing the invented method for reading / writing single board information.

The invention relates to a method for recording and downloading satellite measured and controlled telemetry parameters of an invisible arc section, which is used for being matched with a time scale command to complete recording and downloading of delayed telemetry of the invisible arc section. The method comprises the following steps of: when executing the time scale command and indicating the current state as a departure state, recording according to a recording strategy of the delayed telemetry; and when executing the time scale command and indicating the current state as an entry state, downloading according to a downloading strategy of the delayed telemetry in the time scale command. The recording strategy comprises two modes of period recording and condition recording. The downloading modes comprise a totally downloading mode, an extraction proportion downloading mode and a time period selective downloading mode. By the mode that the method is matched with the time scale command,the automatic recording and downloading of the delayed telemetry can be realized. Due to the adoption of the recording strategy and the downloading modes, corresponding processing can be carried out according to different types of data. The method is more flexible and has higher storage and downloading efficiency, so that the satellite state is furthest reflected by utilizing the effective bandwidth and the basis is provided for fault analysis and judgment of a satellite outside the monitoring arc section.

The invention relates to a hydraulic agricultural machine automatic steering control device which is characterized in that a controller and a hydraulic drive module which are connected are included. A control method comprises the following steps that the controller receives a start command of an upper computer to control an electromagnetic switch valve in the hydraulic drive module to be closed to enable an agricultural machine to switch to an automatic steering mode; the controller carries out self-adaptation fuzzy PID control according to an angle set value in a steering angle set command, a steering angle measuring angle from a sensor and an agricultural machine speed measuring value; obtained controlled quantity of the flow direction and flow is output to a proportional reversing valve of the hydraulic drive module to achieve automatic steering control. According to the hydraulic agricultural machine automatic steering control method with the self-adaptation fuzzy PID control method as a core, the problems of dead zones, equilibration and errors caused by asymmetric characters of a vehicle hydraulic steering system can be well solved, and automatic steering control precision is improved.

The invention relates to an open-phase protection method of a 35kV American box-type substation for a wind power station, belonging to the technical field of power system failure analysis. A current transformer and a zero sequence transformer in a breaker are used to collect required current signals and then the current signals are operated by a central processing unit to obtain current magnitude which is taken as a main criterion, and an auxiliary criterion current magnitude is collected and operated by a system directly; the non electrical quantity and a switching value are subjected to optoelectronic isolation and then collected by the central processing unit so as to judge the open-phase state of the 35kV American box-type substation for the wind power station; and a control output module outputs the judgment result automatically or manually in accordance with conditions. The method and device provided by the invention is suitable for eliminating the open-phase operation failures at a high-voltage side and a low-voltage side of the 35kV American box-type substation for the wind power station; and the device integrates the protection function, the control function, the measurement function, the state monitoring function and the like into a whole, has the open-phase protection function at the high-voltage side and the low-voltage side of the transformer, the overcurrent protection function at the low-voltage side, the overvoltage function, the undervoltage protection function and the overload alarm function, and can prevent a wind driven generator from being influenced by burnout of a fuse at a high-voltage side of a step-up transformer.

The invention relates to an electromobile and an electronic control device integration device thereof. The electronic control device integration device comprises a main control monitoring unit, a motor controller set, an electrical accessory controller set, a first pre-charging circuit and a second pre-charging circuit, all of which are arranged in a centralized mode. A vehicle-mounted high-voltage direct current port is connected with the motor controller set through the first pre-charging circuit and is connected with the electrical accessory controller set through the second pre-charging circuit. The main control monitoring unit is connected with the first pre-charging circuit and the second pre-charging circuit in a control mode. By means of the integration design, the structure is more compact, arrangement is neater, high-low voltage wiring harness connecting and number of connectors are reduced, and the stability of whole electromobile running is improved; by means of the independent pre-charging circuits and a main contactor, the power-assisted steering and low-voltage power supplying of the whole electrombile are normal when a motor controller of the power of the whole electrombile breaks down, and the safety of the whole electromobile running is improved.

The invention relates to a burn-in method based on an SIP module. The burn-in method is achieved in a burn-in box. The burn-in method is based on the SIP module comprising a processor module CPU, a program running space module, an FPGA module and a nonvolatile memory FLASH. According to the designed burn-in method, a burn-in program is written in the SIP module in a programmed mode, a power-on program automatically runs, the FPGA module is automatically configured, and running, access and control of all the modules are executed inside the tested SIP module in the burn-in process. The connecting circuit between the SIP module and the burn-in box is simple. According to the method, burn-in of the SIP module is achieved by fully using the functions of the SIP module, the complexity of the connecting circuit between the SIP module and the burn-in box is greatly lowered, the influences of an external circuit on the SIP module are reduced in the burn-in process, and meanwhile fault analysis can be conveniently conducted.

The invention discloses a bus protection system and method based on voltage phase locking networked sampling. The system comprises a PT merging unit, a plurality of spaced merging units, an interchanger and a bus protection device, the bus protection device comprises a FPGA, a message processor and a protection processor, and the method comprises the following steps of recording the arrival time of each frame of a sampling value message in real time, analyzing the sampling value messages, tracking the sending frequency of sampling values of the merging units, measuring network transmission extra delay errors, synchronizing the interpolation of the sampling values and performing relay protection on a bus. The bus is protected based on voltage phase locking networked sampling, the sampling values are output by the interchanger, the sampling value messages are output in a unified mode, failure analysis of a power system is facilitated, the number of the spaced merging units is set according to the requirement of a protected bus, the number is set flexibly, the engineering implementation is flexible, the synchronization logic and bus protection logic are relatively independent, and the system and method are suitable for being popularized and used in multiple areas.

The invention provides a BMC health state monitoring method and system, a terminal and a storage medium. The BMC health state monitoring method comprises the steps that a server health monitoring process independent of an IPMI MAIN is established, and an independent BMC health monitoring thread is established in the monitoring process; polling is performed through the monitoring thread to obtain BMC monitoring project data; the monitoring items of which the monitoring data exceeds a preset threshold are positioned as abnormal items; and the abnormal program causing the abnormal item to form isanalyzed, and the abnormal program information is output. According to the method, when the BMC system breaks down, the BMC warning information collected through the fault log can be used for more accurately and more efficiently positioning the fault position, the fault reason and the processing suggestion, the maintenance cost of the server is greatly reduced, and the product competitiveness isimproved.

This invention relates to amplitude discrimination and phase discrimination comprehensive earth leakage protective device which comprises: air break, switch-on / off mechanism, zero sequence currentm utual inductor, one-chip computer, leakage simulative circuit, voltage testing circuit, power source unit circuit, leakage signal amplification circuit, leakage current display circuit, eelctricity-driven switch-on / off circuit, standard signal generating circuit and self-detecting circuit. It has functions of: amplitude-discrimination, phase-discriminatino of leakage and detecting earth fault, over-current, short-circuit, under-voltage, over-voltage, and the protection and dislaynig therefor. IT can processed periodic testing leakage protection function by self-detecting circuit. This invention increases the effect and reliability of leakage protection.

The present invention relates to a method for implementing clock redundancy backup in base station of WCDMA system and its equipment. Said equipment includes two clock plates and service plates. The system reference source input signal can be simultaneously transferred into the described two clock plates, said described two clock plates can respectively utilize a clock bus to transfer the produced 30.72MHz working clock signal into service plate. The working clock signal outputted by main / backup clock plates adopting said method can be produced by using clock signal of same clock plate as reference double frequency, when switching, the phases of all the service plates can be smoothly transited and can continuously retain synchronization, and the phase change rate can be accurately controlled, so that it can implement clock redundancy backup and quick and smooth switching.

The invention provides a harbor lifting machinery operation safety machine-mounted early warning system including a data acquisition layer, a data transmission layer and an industrial control computer; the industrial control computer includes a data acquisition interface, a data monitoring module and an early warning module; the data acquisition layer is used for acquiring a monitoring value of monitored harbor lifting machinery, and transmitting the monitoring value to the data acquisition interface of the industrial control computer through the data transmission layer; the data monitoring module is used for setting an early warning value for each monitoring parameter, and if one monitoring value exceeds the early warning value, alarming is carried out through the early warning module. The harbor lifting machinery operation safety machine-mounted early warning system can comprehensively and effectively monitor the harbor lifting machinery operation safety condition, and achieves effective long-term health monitoring on the harbor lifting machinery.

The invention relates to a method for analysing connection conditions between an integrated circuit package and a circuit board, wherein said integrated circuit package is electrically coupled to said circuit board by coupling elements, and therein said integrated circuit package is mechanically connected with said circuit board by support elements. To allow easy failure analysis, it is proposed that physical values are picked-off from said support elements, and said physical values are evaluated to determine the condition of said connection between said integrated circuit package and said circuit board.

The method comprises: processing fiber differential signals from master machine and slave machine side; the slave machine sends out the message format, and the transmitted data is the unprocessed real time sampling point data, the bus voltage of slave machine side and the bus negative sequence voltage; the master machine sends the failure information of slave machine differential protection, and the slave machine side simultaneously reports the protection signals used for realizing the voltage-locking at both side of differential protection; Ia,Ib,Ic are the data of three phase current sampling point of slave machine side; the master machine receives the sampling data of three phase current sent from the slave machine, and compares the data with its own three phase current in order to calculate the differential current; the differential protection uses the split-phase type ratio differential protection, and based on the feature of line failure, uses the both side voltage locking differential protection.

The invention provides a diesel engine running condition detection method and system. The method includes: acquiring and recording running status of working conditions of working systems of a diesel engine, wherein the running data includes discrete data and continuous data; adding the running status into running status data lists of the working systems corresponding to the running data; displaying the running status data lists of the working systems of the diesel engine in a preset mode; judging whether the diesel engine is broken down or not according to the running data, if yes, performingfault diagnosis analysis according to the running data within the preset period before and after the fault time, and generating a fault diagnosis report according to the analysis result. By the arrangement, sufficient data support is provided for fault analysis of the diesel engine, the running data belonging to the same working systems is added to the same running status data lists, the running status acquired is no longer isolated, and the fault of the diesel engine is rapidly positioned and diagnosed.

The invention provides a fault alarm method and device. When a BMC on a server detects a first type of fault, the first type of fault comprises a fault detected by a CPU of the server, and a screen capture function of a remote console is called to perform screen capture on server OS information displayed by a display screen by using the screen capture function of the remote console to obtain screen capture information; and then fault alarm is carried out, wherein the fault alarm comprises the screen capture information. Compared with the prior art, the fault alarm method and device have the advantages that when the BMC detects the first type of fault, the screen capture of the OS information can be realized through the screen capture function of the remote console without depending on an operating system, so that the fault alarm method and device can be suitable for various operating systems; and moreover, when a fault is detected through the CPU of the server, the BMC triggers the screen capture function of the remote console, so that screen capture can be performed in time when the fault occurs, fault analysis is facilitated, and loss can be stopped in time, and the fault processing efficiency of the server is improved.

The invention provides a large-power IGBT fault diagnosis and protection method and apparatus based on gate charges Q[g]. The method comprises the steps of collecting a gate current signal of an IGBT;performing integrating and resetting operation the collected IGBT gate current signal to obtain a gate charge analog signal Q[g] of the IGBT in different switching intervals; converting the obtainedgate charge analog signal Q[g] into a digital signal; performing real-time monitoring of the gate charges of the IGBT in the different switching intervals and comparing the monitored gate charges withthe gate charges in corresponding switching intervals in the normal switching states; and the specific fault type is judged according to the comparison result, and the fault type information is output; according to the fault type information, the IGBT is directly turned off, or the fault information is transmitted to an upper computer which will turn off the IGBT, thereby realizing rapid system protection and safe shutdown. Through the utilization of the method and apparatus of the invention, IGBT self-check and on-line real-time monitoring before power-on can be realized, thereby substantially reducing the risk of IGBT damages.

The invention discloses a multistage screen type automobile tail gas collecting device. The multistage screen type automobile tail gas collecting device comprises a gas inlet pipe, a reaction box, an inclined partition plate, tail gas collecting liquid, multistage screens and an exhaust port. The automobile tail gas collecting device is simple in structure and simple and convenient to operate and guides automobile tail gas from a tail gas pipe to the tail gas collecting liquid in the reaction box for collection and absorption, hazardous substances in the automobile tail gas finally discharged to the atmosphere are greatly decreased through treatment of the multistage screens, air pollution is reduced, the urban PM 2.5 content is reduced, and the automobile tail gas collecting device is beneficial to health of people. In addition, the special tail gas collecting liquid is adopted to conduct chemical absorption on the automobile tail gas, the content of specific substances in the tail gas collecting liquid is detected, a method for rapidly judging whether the operating situation of an automobile engine is normal or not can be provided so as to facilitate fault analysis and later-period repair of the automobile engine, and time and labor are saved.

The invention discloses a portable augmented reality ultraviolet imaging system. The ultraviolet light forms a multi-bit image through the image sensor, and the multi-bit image is binarized, and then the ultraviolet image is subjected to morphological and other digital signal processing and transmitted to the visible light camera, which performs lossless ultraviolet image compression and storage; visible light passes through the imaging module. Output high-definition visible light video images, and form three independent time stamp-based data in the visible light camera, namely ultraviolet images, visible light video images, and OSD text information, of which ultraviolet images and visible light video images can be scanned in real time. In the display stage, the panoramic ultraviolet image, the panoramic visible light image and the OSD text information are synchronously displayed by timestamp. The invention effectively expands the detection field of the instrument, realizes the discharge detection in augmented reality, enhances the intuitive and visualized fault location capability, and can also be linked with the power operation and maintenance platform by means of a mobile phone.

The invention discloses an on-line ultrasonic nondestructive testing method based on 3D printing, and belongs to the field of ultrasonic nondestructive testing. The on-line ultrasonic nondestructive testing method includes the steps that a 3D printing model is established and converted to an STL file, and manufacturing information of a printing layer is obtained by using segmentation software processing; according to the shapes of different 3D printer nozzles and physical information of the to-be-printed pieces (the material properties, thickness and the like), a suitable air ultrasonic probeis selected to cooperate with the corresponding printing nozzle to set printing and scanning parameters; ultrasonic information obtained by the ultrasonic probe is then subjected to signal processingand image processing, a threshold is set to distinguish unreserved defects and unrelated defects, and the total defect rate of a detection layer is counted; by comparing an image after ultrasonic processing with an image after segmentation processing on line, and the printing parameters can be adjusted in time or even printing of bad forming can be stopped; and finally, ultrasonic imaging is subjected to three-dimensional reconstruction, and the forming quality of all printed products is archived.

The invention provides a virtual machine monitor, a virtual machine system and a client operation system state acquiring method. The virtual machine monitor comprises a memory module, an acquiring module, a first client operation system and a first data information reading module, wherein the memory module is used for storing one correspondence relationship and can acquire the actual physical memory information used by a client operation system; the acquiring module is used for determining the first actual physical memory corresponding to the first client operation system indicated in state acquiring instructions according to the correspondence relationship after receiving the state acquiring instructions, the first client operation system is one system of the client operation systems, and the first data information reading module is used for reading the first data information in the first actual physical memory. The acquisition of the actual physical memory information used by GOS under the virtual state becomes possible by utilizing the invention.

The invention provides a log recording method and device, electronic equipment and a storage medium. The method comprises the following steps: determining a pre-configured record item, running each functional module of software, acquiring data content of the record item in the running process of each functional module, and recording the data content acquired in the running process of each functional module into a log file corresponding to each functional module. According to the method, the formats of the log files corresponding to all the functional modules are unified by configuring the recording items in advance, and all the functional modules correspond to different log files, so that later search and fault analysis are facilitated, and the problem is quickly positioned.

The invention provides an on-line monitoring system for a hump signal device and an online monitoring method for a reducer. A current detecting circuit of an electromagnetic valve transmitting terminal and a voltage detecting circuit of a relay empty idle contact are arranged to monitor a working current of a solenoid valve of a signal device and states of all relays continuously in real time; andthen whether relevant operational indicators of the signal device meet the requirements is determined based on monitoring results to realize real-time monitoring of the signal device and carry out data recording and fault analysis conveniently. According to the invention, the reducer is monitored and a transmitting terminal current of the solenoid valve, a brake relay state, a remission relay state, a brake indicating relay state, and a remission indicating relay state are obtained; whether the voltage and current are normal and the brake time and remission time are exceeded are determined based on the monitoring results; and a fault location is determined based on the determination results to realize real-time monitoring of the reducer.

The embodiment of the invention provides a remote fault analysis method, a vehicle-mounted terminal, a server, equipment and a medium. The method comprises the steps of determining the vehicle-mountedterminal to be monitored; receiving a configured log uploading request sent by a server, wherein the log uploading request at least comprises a unique identity identifier of the vehicle-mounted terminal and a preset time period; in response to the log uploading request, capturing log data of a mounting point of peripheral equipment on the vehicle-mounted terminal in the preset time period according to the unique identity identifier; and sending the log data to the server so as to facilitate the server to perform fault analysis on the log data. The log data of the vehicle-mounted terminal is obtained remotely, the overall logs of abnormal points in front of and behind the whole vehicle-mounted terminal are obtained at the vehicle-mounted terminal and transmitted to the server, the server side directly analyzes the logs of the abnormal points, fault analysis of the vehicle-mounted terminal is achieved more conveniently, and the tracking time cost and economic cost are reduced.