12 results about "Troubleshooting" patented technology

The invention discloses a distribution line fault cause comprehensive probability analysis method. The method comprises the following steps of: taking all causes which may cause line faults as analysis criteria; referring to the causes of the previous faults of a power distribution network in the region as empirical values; carrying out static coefficient assignment according to the historical occurrence probability; when a fault occurs, carrying out dynamic coefficient assignment according to known factors, carrying out probabilistic sorting on causes which may cause the faults through weighted calculation of static coefficients and dynamic coefficients, performing circulation once after power distribution line fault removal and confirmation, and updating the static coefficients of the fault probability repeatedly in this way. According to the method, a preliminary fault cause analysis conclusion can be obtained and used for guiding line inspectors to find fault points with emphasis;the static coefficient assignment is further corrected according to actual fault causes after troubleshooting is finished, and therefore self-learning of the algorithm is achieved, and more accurate data is provided for later fault probability judgment.

An impedance test structure, device and method are provided. The impedance test structure is arranged on to-be-tested equipment, and is used for exporting the signal of the to-be-tested equipment so as to carry out impedance test. When the to-be-tested equipment is a board in practical application, the impedance test structure exports the signal of the board, so that the impedance of the board inpractical application is tested, and troubleshooting of a problematic board is facilitated.

The invention provides an automobile bus communication method and system for a remote terminal, the remote terminal, an automobile bus communication method and system for an automobile diagnosis device, the automobile diagnosis device and a computer readable storage medium. The automobile bus communication method for the remote terminal comprises the steps of sending the diagnosis data to a server, so that the server sends the diagnosis data to automobile diagnosis equipment, and the automobile diagnosis equipment collects feedback information according to the diagnosis data; starting timing from the time when the diagnostic data is sent, and taking the current time as a sending time after a preset time length is reached; receiving the feedback information sent by the server, wherein the feedback information is sent to the server by the automobile diagnosis device. According to the automobile bus communication method applied to the remote terminal provided by the invention, the real-time problem of remote communication is solved through a pre-delay mechanism, the remote direct troubleshooting is realized, a problem point is immediately captured, the research and development efficiency is improved, and the business trip cost and the time are reduced.

The invention provides a message analyzing and processing system based on water, electricity, gas and heat concentrators, which relates to the technical field of meter reading. The system comprises aconcentrator message recording system and a master station message analyzing system. The master station message analysis system is used for reading the message and determining the operation status ofeach functional module of the target concentrator by analyzing the message content so as to determine the abnormal point according to the abnormal operation status in the operation status. The invention alleviates the technical problem of manpower waste existing in the traditional troubleshooting method of the meter reading system.

The invention relates to a device for converting an analog distribution network system, and the device comprises a transformer, a first analog three-phase device, a second analog three-phase device, a first analog single-phase device, a second analog single-phase device, a primary system conversion unit, a first protection conversion unit, a second protection conversion unit, a third protection conversion unit and a fourth protection conversion unit. In order to overcome the weaknesses of the prior art, the device for converting the analog distribution network system is provided, so that the conversion of five systems can be realized, the technical skill training of the distribution network system and troubleshooting for employees can be realized, the ability of the employee for solving the in-situ problem can be rapidly improved, the employees can carry out the positive learning through the system setting, but also can reproduce an analog fault which is identical to the in-situ real situation so as to carry out the reverse experience training at any time.

The invention discloses an analog-to-digital converter calibration system and a method. The analog-to-digital converter calibration system comprises a standard reference unit and a data acquisition and processing unit. Wherein the output end of the standard reference unit is connected with the input end of the analog-to-digital converter, and the standard reference unit is used for generating standard voltage. And the data acquisition and processing unit is respectively connected with the output end of the analog-to-digital converter and a standard reference source and is used for acquiring and processing data and controlling the standard reference unit to work. According to the analog-to-digital converter calibration system, the data acquisition and processing unit controls the standard reference unit to output a plurality of stepped decreasing voltage values to the analog-to-digital converter. The data acquisition and processing unit acquires the output value of the analog-to-digitalconverter at the same time and compares the output value with the reference value stored in the data acquisition and processing unit, so that comprehensive calibration of the analog-to-digital converter can be realized, and troubleshooting of problems is facilitated.

The invention relates to an electrical fault troubleshooting method, which comprises the following steps of: establishing an electrical fault troubleshooting model for each power device in a set range, and storing the electrical fault troubleshooting model in a processor or a database; establishing an electrical troubleshooting APP according to the electrical troubleshooting model; downloading theelectrical troubleshooting APP to a mobile terminal; enabling maintenance personnel to firstly input the name of power equipment with an electrical fault according to the indication of the electricalfault troubleshooting APP, and enabling the electrical fault troubleshooting APP to call out an electrical fault troubleshooting model corresponding to the power equipment with the electrical fault through a processor or a database; and enabling the electrical fault APP to instruct maintenance personnel to perform troubleshooting according to the instruction of the electrical troubleshooting model. According to the technical scheme, the guidance of the troubleshooting model is set for the electrode element of the equipment, so that even an unexperienced maintenance electrician can quickly find out the faulty electrical element and eliminate the fault, and the normal production of a production workshop is ensured.