37results about How to "Simplify the troubleshooting process" patented technology

The invention relates to a method and a device for diagnosing automotive electronic control unit faults based on semi-physical simulation. The method comprises the steps that (1) a personal computer (PC) and a control system send standard input information to an electronic control unit to be detected and send standard output response information to a fault diagnosis and display module; (2) the electronic control unit to be detected processes and sends out the output response information; (3) the fault diagnosis and display module compares the standard output response information with output response information of electronic control unit (ECU) to be detected to draw a conclusion whether the electronic control unit to be detected breaks down; and (4) changing some input information, and diagnosing fault properties of the electronic control unit to be detected. The device comprises the PC, the control system and a simulation controller. Compared with the prior art, by means of the method and the device for diagnosing the automotive electronic control unit faults based on the semi-physical simulation, the fault clearing flow of an automotive electronic control is greatly simplified, the fault clearing range is narrowed, the fault diagnosis rate is further improved, maintenance workload result from diagnosis of replacement parts and fund employment amount of stock parts are effectively reduced, thus the maintenance cost is greatly reduced.

The invention discloses a device and a method for detecting the high-voltage interlocking failure of an electric vehicle and relates to interlocking detection of high-voltage connectors. The device comprises a high-voltage interlocking plug-in unit, an interlocking failure detection device and an instrument display, wherein the high-voltage interlocking plug-in unit is sequentially connected with the failure detection device and the instrument display through a data bus. The data bus accesses a high-voltage interlocking detection loop, and the failure elimination process is simplified. An overall vehicle is provided with multiple high-voltage interlocking parts; when the high-voltage interlocking device at a certain position fails, the failure occurrence position can be accurately diagnosed, an instrument automatically displays the specific position, and the high-voltage connectors do not need to be pulled down one by one for troubleshooting, so that great workload is reduced, and time is saved. Even if multiple interlocking failures exist, the failure positions can be accurately judged.

The invention provides a diagnostic determination method for a spacecraft control system under influence of noise. First, a multivariate probability distribution statistic model of the spacecraft control system is built through a standard model and an equivalent space method; then a detectability index is obtained; and fault detectability is determined; finally, an isolability index is obtained, and the fault isolability is determined. According to the diagnostic determination method, influence of process noise, observation noise and other interference factors on diagnostic performance are fully taken into consideration, fault diagnosis algorithms are not required to be designed, and the fault detectability and the isolability can be determined according to system information including kinetics, kinematics, a controller model and the like of the spacecraft control system and the configuration and installation condition of a sensor and an actuator, the fault diagnosis process of the spacecraft control system is simplified, meanwhile, a theoretical basis can be provided for design of a diagnosis algorithm, the design method of the spacecraft control system is optimized, and the controllability of the spacecraft control system is improved.

The invention provides an air conditioner repair requesting method, an air conditioner and a server. The air conditioner repair requesting method is used for the air conditioner, and comprises the following steps of: acquiring data information of the air conditioner according to a received data acquisition command; transmitting the obtained data information to the server connected with the air conditioner, thereby processing the data information by the server and transmitting the processing result to a terminal connected with the server. According to the technical scheme of the invention, a malfunction repair requesting flow for the air conditioner is simplified, consequently, user satisfaction is improved, manpower cost is saved, repair efficiency is improved, and repair cost is reduced.

The invention discloses a unified management method of multi-platform users of a cluster storage system, and provides a unified management mechanism of cross-platform users. The unified management method of the multi-platform users of the cluster storage system includes: using an existing or self-built LDAP server, storing all cluster storage users on the LDAP server in unified mode, and simultaneously setting a cluster storage node as an LDAP client side, building a connection between a cluster storage node SAMBA process and an LDAP service process, using the LDAP server to provide identity authentication service to the cluster storage users, and providing unified management of the cross-platform users. The unified management method of the multi-platform users of the cluster storage system can meet unified authentication of the cross-platform users of Windows and Linux, and simultaneously avoids influences of cluster storage node fault on access of the users, greatly simplifies an examination process of system fault, facilitates a user management process, and improves usability of the cluster storage system.

The invention specially relates to a method for performing cross-platform unified management on users of a cluster storage system. The method for performing the cross-platform unified management on the users of the cluster storage system includes: uniformly storing all the cluster storage users on an external AD (active directory) domain controller, and simultaneously using SAMBA software to add cluster storage nodes in a Windows AD domain, wherein a storage node SAMBA server is used as a member of the Windows AD domain, and an AD domain controller node provides SAMBA user unified management services to the cluster storage system. According to the method for performing the cross-platform unified management on the users of the cluster storage system, all user management operations are completed through the AD domain controller, unified authentication of the cross-platform users, Windows users and Linux users is achieved, and simultaneously user information is stored on an AD domain service node except the nodes of the cluster storage system, influences of breakdowns of the cluster storage nodes on user access are further avoided, and furthermore not only is the unified management of the cross-platform users achieved, but also an elimination process of system breakdowns is greatly simplified.

The invention provides a superconductive magnetic suspension supporting arrangement, and six support modules (10) are symmetrically distributed on a reference axis of orthogonal coordinate system whose original point is the center of a rotor chamber (8). A heating power supply (18) is powered on, and a superconductive switch (16) is disconnected, and a superconductive power supply (19) is used for excitation of a superconducting coil (11). A magnetic field generated by the superconducting coil (11) enters from a middle aperture of the superconducting coil (11) to a middle aperture of the superconductive shaping block (12), and then returns from a gap from the superconductive shaping block (12) and the superconducting ring (13) as well as the lower part of the superconducting coil (11) to the middle aperture of the superconducting coil (11) for forming a closed magnetic circuit. The superconductive rotor (9) is suspended by a magnetic repulsion generated by the superconducting coil (11). After excitation of the superconducting coil (11), the heating power supply (18) is closed and the superconductive switch (16) is connected, and then the superconductive power supply (19) is disconnected, and the current of the superconducting coil (11) can provide a stable suspension magnetic field for the superconductive rotor (9).

The invention provides an electronic control system diagnostic box. The electronic control system diagnostic box includes a diagnostic box body and the test switch cord. Installed on the diagnostic box body is a voltage detection device, a voltage display device, at least one test input port and a plurality of transit ports, the test input port includes a plurality of test pins; a plurality of transit ports are placed on the diagnostic box body, through the transmission line connects one-to-one correspondingly with a plurality of test pins; the voltage detection device is used to connect the transit port, in order to detect the voltage value of the transit port access; the voltage display device is used to display the detected voltage value by the voltage detection device; the first port of the test switch cord connects with the test input port, the second port of the test switch cord connects with the output port of the tested circuit. Through the deployment of the present invention, the trouble shooting process of the electronic control system can be simplified, which effectively reduces the misjudgments of the inspection staff and increases work load efficiency.

The invention discloses a high-altitude flame-projecting barrier-removing robot, including a multi-shaft aircraft two-stage telescoping mechanism and a flame projecting system. The flame projecting system includes a pressurization fuel oil storage tank, a nozzle and a high-pressure igniter, after being atomized through the nozzle, pressurized fuel oil in the pressurization fuel oil storage tank can be ignited by the high-pressure igniter, the two-stage telescoping mechanism includes a first-stage sliding block, a first-stage guide rail, a second-stage sliding block, a second-stage guide rail, an extension rod and a driving device, the first-stage sliding block is slidably arranged on the first-stage guide rail and is fixedly arranged on a main rack of the flame projecting system, and the second-stage sliding block is slidably arranged on the second-stage guide rail; while driving the second-stage sliding block to slide relative to the second-stage guide rail, the driving device drives the first-stage guide rail to slide relative to the first-stage sliding block in the same direction synchronously; and the extension rod is fixedly connected to the second-stage sliding block, and the nozzle and the high-pressure igniter are mounted on the extension rod. The high-altitude flame-projecting barrier-removing robot provided by the invention adopts a remote control flight flame-projecting scheme, and a power supply does not need to be cut off in the barrier removing process, thereby simplifying a barrier removing operation process, lightening the burden of operating personnel, improving the barrier removing efficiency, and ensuring the safety of workers.

The invention discloses an equivalent order reduction-based diagnosability evaluation method. According to the method, firstly, the influences of process and observation noises and the uncertainty areconsidered and a diagnosability window model of a complex dynamic system is obtained. Secondly, based on the recurrence relation in the system, a diagnosability dimension reduction window model of the system is obtained. The burden of data storage and calculation is greatly reduced, and the diagnosability calculation efficiency of the system is improved. Finally, the diagnosability quantitative evaluation indexes of the complex dynamic system are obtained. According to the invention, the influences of process and observation noises and the uncertainty on the correctness of diagnosability evaluation results are comprehensively considered. Meanwhile, the influence of a time window model on diagnosability evaluation results is also considered. As a result, the diagnosability design level ofthe system can be maximally improved during the design stage of the system. A guidance basis is provided for the configuration of the system. The design method of the system is optimized and the design cost of the system is reduced.

The invention discloses an interface based computer fault diagnosis method, belongs to the server fault diagnosis field, and aims at quickly and automatically testing server fault, displaying the fault cause through an interface, and timely handling the fault. According to the technical scheme, the method comprises the following steps: (1) manufacturing a U flash disk self-starting system; (2) programming a diagnosis interface and a related diagnosis testing module; (3) starting the U flash disk starting system in step (1); operating the diagnosis system; collecting error information; analyzing the error information; and automatically generating html format result; and (4) viewing the fault cause according to the html format result obtained in step (3), and timely handling the fault.

The invention discloses a fault repair method, device and system, relates to the field of computer technology and mainly aims to solve the problem that in the prior art, manual repair is needed when salt-minion has a fault. According to the main technical scheme, a salt-master server sends a test instruction according a second preset time interval; the test instruction sent by the salt-master server is received; tests are performed according to the test instruction, and test results are generated; the test results are sent; the salt-master server receives the returned test results and judges whether a test result meeting a preset abnormal condition exists in the test results; if yes, a fault list is generated according to identification information of a salt-minion server corresponding tothe test result meeting the preset abnormal condition; the salt-minion server reads the fault list in a preset storage position according to a first preset time interval; and fault repair is performedaccording to the identification information in the fault list. The fault repair method, device and system are mainly used for fault repair.

The invention discloses a switch matrix channel fault diagnosis method and system. The method comprises the steps: constructing a test channel matrix for a channel where a switch to be tested is located in a switch matrix; performing reflection signal test on the detection nodes in the test channel matrix, judging whether the detection nodes are in a reflection state or not through a preset reflection signal threshold, and constructing a test channel detection node matrix; comparing the test channel detection node matrix with a normal channel detection node matrix to obtain a fault point channel; and based on frequency domain reflection, positioning the position of a reflected signal, namely the position of the fault point, for the detection node of the fault point channel. Rapid detectionand fault diagnosis positioning of multiple channels are realized, and the uncertainty problem of false alarm generated by an indirect equivalent method is solved according to effective detection ofthe real physical connection state of the channels constructed by the switch matrix.

The invention is applicable to the technical field of fault detection, and provides a detection system for a power module in modular electrical equipment, which comprises a control device and an electric signal sampling circuit, the control device is used for sending a PWM signal to each power module in the modular electrical equipment; the electric signal sampling circuit is used for collecting output electric signals corresponding to all power modules in the modular electrical equipment and sending the output electric signals corresponding to all the power modules to the control device. Thecontrol device is further used for obtaining the output electric signals corresponding to the power modules and determining the working states of the power modules according to the output electric signals corresponding to the power modules and a preset threshold range. Start and stop of all the power modules can be driven in a centralized mode through the control device, whether output electric signals of all the power modules are normal or not is detected, and therefore the detection efficiency of the multiple power modules of the modular electrical equipment is improved.

The embodiment of the invention provides a data problem checking method, device and equipment, and a computer readable storage medium. The method comprises the following steps: receiving a data checking request; in response to the data troubleshooting request, in a mask corresponding to a data display page, determining a target selection box of a to-be-troubleshot problem corresponding to the data troubleshooting request; determining a target database access interface corresponding to the target selection box; acquiring transmission data which is transmitted by the target database access interface and corresponds to the target selection box; and according to the transmission data, troubleshooting the display data on the data display page. The ring node generating the problem can be directly positioned on the data display page according to the transmission data, so that the problem checking process is simplified, and the problem checking efficiency is improved.