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

A high-voltage interlock fault detection device and a detection method for an electric vehicle relate to the interlock detection of a high-voltage connector. It includes a high-voltage interlock plug-in, an interlock fault detection device and an instrument display, and the high-voltage interlock plug-in is sequentially connected to the fault detection device and the instrument display through a data bus. Connecting the data bus to the high-voltage interlock detection circuit simplifies the troubleshooting process. There are many parts with high-voltage interlocks in the whole vehicle. When a high-voltage interlock fails at a certain position, it can accurately diagnose the location of the fault, and the instrument will automatically display the specific position. It is not necessary to unplug the high-voltage connectors one by one for troubleshooting, reducing Saved a lot of work and saved time. Even if there are multiple interlock faults, the location of the occurrence can be accurately determined.

The present disclosure relates to a radio frequency male-to-male transfer joint, a radio frequency transfer system and a vehicle. The radio frequency male-to-male transfer joint includes a first radio frequency male end connector, a second radio frequency male end joint and a flange part, and the radio frequency male to male transfer joint passes through the flange The first RF male connector and the second RF male connector are respectively located on both sides of the housing; the plugging surface of the first RF male connector is facing away from the housing. direction, the insertion surface of the second radio frequency male connector faces the direction that the second radio frequency male connector is away from the housing. Through the technical solution of the present disclosure, the troubleshooting process of the on-board controller is simplified, and the troubleshooting efficiency of the on-board controller is greatly improved.

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 method for investigating indoor and outdoor communication fault points of a VRV (Vacuum Reducer Valve) multi-connected air-condition unit. The method comprises the following steps: when indoor and outdoor communication fault occurs, firstly checking and determining whether the communication between an outdoor machine and a first indoor machine is normal; if so, determining whether the fault is caused by address conflict of the first category of indoor machines; if so, carrying out fault clearance, if not, determining that the fault is caused by the problem of the second category of hardware, and going to the next investigating step at the time; investigating the fault caused by the problem of the second category of hardware: judging the communication connection problem of one indoor machine or several indoor machines by using a dichotomy; checking according to several fault causes after the communication problem of the indoor machine is investigated by using the dichotomy; and then removing the fault to ensure that the communication between the outdoor machine and the indoor machine gets right. The invention has the advantages of simplicity and convenience, reliability, quick investigating speed and high working efficiency.

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 relates to a fault processing method for a power distribution network of an oil field. The fault processing method comprises the steps of seeking a position of a fault point when a fault occurs in the power distribution network of the oil field; disconnecting a circuit of the power distribution network of the oil field by the fault point, and judging whether the fault is a non-permanent fault or not; recovering connection of a disconnection point if the fault is a non-permanent fault, and starting oil pumping unit set in a circuit disconnected with a bus in batches; and otherwise starting a power generator of the oil pumping set nearest to the disconnection point on the circuit disconnected with the bus, and providing an active power for the circuit disconnected with the bus. After the circuit fault is detected, corresponding fault processing is performed according to a type of the fault, so that normal working of the oil pumping unit set can be guaranteed.

The present invention discloses an analysis method of diagnosability of an uncertainty system. The method provided by the invention fully considers influences of interference factors such as process noise, observation noise and uncertainty in an analysis process, a multivariate probability distribution statistical model of a control system is given to obtain a detectable uncertainty radius and anisolative uncertainty radius, a detectability analysis index and an isolability analysis index considering the uncertainty can be obtained based on the multivariate probability distribution statistical model and the uncertainty radiuses, and diagnosability quantitative determination is performed based on the detectability analysis index and the isolability analysis index considering the uncertainty, so that the stability and the design accuracy of the complex control system can be ensured.

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 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 relates to a fault processing method for a power distribution network connected with the ground through a small resistor of an oil field. The fault processing method comprises the steps of seeking a position of a fault point when a fault occurs in the power distribution network of the oil field; disconnecting a circuit of the fault point by opening a circuit breaker, and judging whether the fault is a non-permanent fault or not; closing the opened circuit breaker when the fault is a non-permanent fault, and starting oil pumping unit set in a circuit disconnected with a bus in batches; and otherwise starting a power generator of the oil pumping set adjacent to the opened circuit breaker on the circuit disconnected with the bus, and providing an active power for the circuit disconnected with the bus. After the circuit fault is detected, corresponding fault processing is performed according to a type of the fault, so that normal working of the oil pumping unit set can be guaranteed.