1. A fault tree analysis method of an S700K turnout switch machine is characterized by comprising the following steps:

s1, forming a fault description through fault mode influence fault analysis;

s2, combining the fault description formed in S1 and a fault history database of the system to form a fault diagnosis process database, wherein the fault diagnosis process database at least comprises fault representation and fault tracing;

s3, fault tree analysis is carried out on the basis of the fault diagnosis process database, so that the multipoint fault cause of the fault of the turnout switch machine is supplemented;

and S4, converting the fault tree into a fault analysis positioning tree, and positioning and analyzing the fault of the turnout switch machine through the fault analysis positioning tree.

2. The method as claimed in claim 1, wherein the logic relationship of the fault location tree is as follows: from a fault event, a positioning result and a solution which are finally obtained form a hierarchy structure which is gradually increased by analyzing the test action and the test result of the fault diagnosis kernel module.

3. The method as claimed in claim 1, wherein the step of analyzing S700K is performed to analyze only the middle time and the bottom time of the fault event caused by the hardware error and the operation error of the switch machine in S3.

4. The method as claimed in claim 1, wherein the fault diagnosis system includes a fault diagnosis process database, a fault diagnosis kernel module, and a user interface module, the fault diagnosis process database is connected to the fault diagnosis kernel module, the fault diagnosis kernel module is connected to the user interface module, the user connection module is connected to the fault diagnosis process database and the control module, the fault diagnosis kernel module is connected to the diagnosed object through a command interface, the command interface is used to transmit the test command of the fault diagnosis kernel module to the diagnosed object, and simultaneously feed back the test result of the diagnosed object to the fault diagnosis kernel module, so as to transmit the test result to the fault diagnosis process database, thereby updating the data of the fault diagnosis process database.

5. The method as claimed in claim 4, wherein the control module is used for diagnostic command input/modification of the diagnostic procedure database.

6. The method for analyzing the fault tree of the S700K switch machine as claimed in claim 1, wherein the fault analysis tree is mainly used for analyzing the data of the switch quantity, the method obtains the switch fault of the switch machine with specific switch machine number by the inference judgment of the switch quantity of the monitored object, the analysis efficiency is high, the judgment accuracy is high, each machine type adopts specific fault tree, and the method comprises the following conditions:

A) when the action time is more than 13 seconds, taking the last action curve, if the current of the small step is about 0.5A, the action time acts for 1 second, indicating that the turnout is not unlocked, if the current of the small step is about 0.5A, the action time is about 2-4.5 seconds, indicating that the turnout meets the blockage in the action process, if the current of the small step is about 0.5A, the action time is about 5.5 seconds, indicating that the turnout is blocked;

B) if the small step current does not exist, the last action curve is taken, if the small step current is about 0.5A, the contact of the surface secret detector is not in place, and if the small step current does not exist, the open circuit of a resistor and a diode in the loop is represented;

C) when the current of the small step is higher, the alternating current and the direct current represent voltage, the short circuit of the diode is indicated, otherwise, the short circuit of the resistor is indicated;

D) and when the current curve about 1 second does not have starting current, the action power supply is not sent, starting current exists, the fuse gives an alarm, the fuse is disconnected, starting current exists, the fuse does not give an alarm, and the condition that 1DQJ is not closed automatically, DBQ falls down or the power supply instantaneous power-off lamp fails is indicated.

Background

The switch machine comprehensive monitoring and collecting extension is responsible for collecting parameters of the switch machine such as indication gap value, switch operation video, gap shaking amount, passing video, gap shaking amount, temperature and humidity in a switch machine case, vibration acceleration and the like, uploading a measuring result to an indoor monitoring station machine, carrying out data analysis, data display and transfinite alarm to realize man-machine interaction, the whole system framework adopts a CS structure, monitoring software is divided into a client and a server, the client is mainly responsible for storing and displaying data collected by the switch machine and having alarm and interaction functions related to operators, a fault tree technology is mainly used for analyzing switch amount data, the method obtains faults of the switch machine with a specific switch machine number by inferentially judging the switch amount of a monitoring object, the analysis efficiency is high, the judgment accuracy is high, each machine type adopts a specific fault tree, for communication electronic equipment, equipment faults exist objectively and occur randomly, and the reasons for causing the equipment faults include hardware failures of devices and manual operation errors of the equipment, but if a complex system formed by a plurality of components fails, maintenance personnel often take the best of measures and cannot quickly and accurately find specific reasons for causing the system faults, so that the maintenance time and the maintenance cost are too long.

In the analysis and research of turnout monitoring data in China, the method mainly focuses on simple analysis of the working current electric power of an alternating current switch machine and the working current of a direct current switch machine. At present, two data analysis modes mainly exist, one is simple overrun alarm based on threshold value; one is an expert diagnostic system based on a turnout fault tree. Most of the currently used turnout state monitoring systems do not carry out deep analysis on monitoring data, can not automatically diagnose faults, and can not predict equipment states, only simply complete the collection and display of partial data and simple threshold judgment, and lack a complete data analysis system, so that high-level maintenance personnel are needed for field maintenance to manually analyze the monitoring data, the troubleshooting time is too long, the number of the maintenance personnel at high technical level on the field is seriously insufficient at present, the maintenance requirement of rapid development of a line is difficult to meet, once a fault occurs, turnout equipment has to quit working, and the line operation is directly influenced, therefore, a fault tree analysis method of an S700K turnout switch machine is designed by taking a mainstream S700K turnout switch machine as an object, and the problems are very important to solve.

Disclosure of Invention

The invention aims to solve the defects that the fault analysis efficiency is low and the specific reason causing the system fault cannot be quickly and accurately found in the prior art, and therefore provides a fault tree analysis method of an S700K turnout switch machine.

In order to achieve the purpose, the invention adopts the following technical scheme:

a fault tree analysis method of an S700K turnout switch machine comprises the following steps:

s1, forming a fault description through fault mode influence fault analysis;

s2, combining the fault description formed in S1 and a fault history database of the system to form a fault diagnosis process database, wherein the fault diagnosis process database at least comprises fault representation and fault tracing;

s3, fault tree analysis is carried out on the basis of the fault diagnosis process database, so that the multipoint fault cause of the fault of the turnout switch machine is supplemented;

s4, converting the fault tree into a fault analysis positioning tree, and positioning and analyzing the fault of the turnout switch machine through the fault analysis positioning tree;

preferably, the logic relationship of the fault location tree is: from a fault event, a positioning result and a solution which are finally obtained form a hierarchy structure which is gradually increased by analyzing the test action and the test result of the fault diagnosis kernel module.

Preferably, only two of the hardware errors and the operation errors of the switch machine are analyzed in S3, which may result in the middle time and the bottom time of the failure event.

Preferably, the fault diagnosis system comprises a fault diagnosis process database, a fault diagnosis kernel module and a user interface module, wherein the fault diagnosis process database is connected with the fault diagnosis kernel module, the fault diagnosis kernel module is connected with the user interface module, the user connection module is connected with the fault diagnosis process database and the control module, the fault diagnosis kernel module is connected with a diagnosed object through a command interface, the command interface is used for transmitting a test command of the fault diagnosis kernel module to the diagnosed object and feeding back a test result of the diagnosed object to the fault diagnosis kernel module, so that the test command is transmitted to the fault diagnosis process database, and data updating of the fault diagnosis process database is realized.

Preferably, the control module is used for diagnostic command input/modification of a diagnostic procedure database.

Preferably, the fault analysis tree is mainly used for analyzing the switching value data, the method obtains the turnout fault of the switch machine with a specific switch machine number by inferentially judging the switching value of a monitored object, the analysis efficiency is high, the judgment accuracy is high, each machine type adopts a specific fault tree, and the method comprises the following conditions:

A) when the action time is more than 13 seconds, taking the last action curve, if the current of the small step is about 0.5A, the action time acts for 1 second, indicating that the turnout is not unlocked, if the current of the small step is about 0.5A, the action time is about 2-4.5 seconds, indicating that the turnout meets the blockage in the action process, if the current of the small step is about 0.5A, the action time is about 5.5 seconds, indicating that the turnout is blocked;

B) if the small step current does not exist, the last action curve is taken, if the small step current is about 0.5A, the contact of the surface secret detector is not in place, and if the small step current does not exist, the open circuit of a resistor and a diode in the loop is represented;

C) when the current of the small step is higher, the alternating current and the direct current represent voltage, the short circuit of the diode is indicated, otherwise, the short circuit of the resistor is indicated;

D) and when the current curve about 1 second does not have starting current, the action power supply is not sent, starting current exists, the fuse gives an alarm, the fuse is disconnected, starting current exists, the fuse does not give an alarm, and the condition that 1DQJ is not closed automatically, DBQ falls down or the power supply instantaneous power-off lamp fails is indicated.

The invention has the beneficial effects that: can obtain the switch trouble of specific goat model goat fast, analysis efficiency is high, judges that the rate of accuracy is high, can the self-diagnosis trouble, can predict the equipment state simultaneously, can accomplish collection, show and the simple threshold value of data and judge, forms the complete analysis system of data, and is low to maintainer technical requirement, can satisfy the maintenance demand of circuit rapid development, has shortened troubleshooting time, ensures the normal operating of circuit.

Drawings

Fig. 1 is a schematic diagram of fault tree analysis of a fault tree analysis method for an S700K switch machine according to the present invention;

fig. 2 is a schematic flow chart of a fault tree analysis method for an S700K switch machine according to the present invention;

fig. 3 is a schematic structural diagram of a fault diagnosis system of the fault tree analysis method for the S700K switch machine according to the present invention;

fig. 4 is an analysis schematic diagram of the fault tree action time of the fault tree analysis method of the S700K switch machine of the present invention being greater than 13 seconds;

fig. 5 is a schematic diagram of a fault tree no-small-step current analysis of the fault tree analysis method of the S700K switch machine according to the present invention;

fig. 6 is a schematic diagram of analyzing the current height of the small step of the fault tree according to the fault tree analysis method of the S700K switch machine provided by the present invention;

fig. 7 is a schematic diagram of the fault tree analysis of the fault tree of the S700K switch machine according to the fault tree analysis method of the present invention, which is about 1 second current curve analysis.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-7, a fault tree analysis method of S700K switch machine includes the following steps:

s1, forming a fault description through fault mode influence fault analysis;

s2, combining the fault description formed in S1 and a fault history database of the system to form a fault diagnosis process database, wherein the fault diagnosis process database at least comprises fault representation and fault tracing;

s3, analyzing the fault tree based on the fault diagnosis process database, thereby supplementing the multipoint fault reason causing the fault of the turnout switch machine, in this step, only analyzing the middle time and the bottom time of the fault event caused by the hardware error and the operation error of the turnout switch machine;

s4, converting the fault tree into fault analysis, and positioning and analyzing the fault of the turnout switch machine through the fault analysis, wherein the logic relation of the fault positioning tree is as follows: starting from a fault event, analyzing the test action and the test result of a fault diagnosis core module to finally obtain a positioning result and a solution to form a hierarchy structure which is gradually upgraded, wherein the fault diagnosis system comprises a fault diagnosis process database, a fault diagnosis core module and a user interface module, the fault diagnosis process database is connected with the fault diagnosis core module, the fault diagnosis core module is used for calling the fault diagnosis process database under the control of a processor to enable the fault diagnosis process to be carried out according to the logic relation of a fault positioning tree, information interaction is carried out between a command line interface and a diagnosed object, the reported test result is received and processed, the diagnosis result is output through the user interface module, the fault diagnosis core module is connected with the fault diagnosis process database and a control module, the system comprises a user connection module, a fault diagnosis kernel module, a command interface, a fault diagnosis process database and a control module, wherein the user connection module is used for outputting a system fault diagnosis result and/or analyzing a user console command, the fault diagnosis kernel module is connected with a diagnosed object through the command interface, the command interface performs data and information interaction with the diagnosed object through the command, the command interface is used for transmitting a test command of the fault diagnosis kernel module to the diagnosed object and simultaneously feeding back the test result of the diagnosed object to the fault diagnosis kernel module so as to transmit the test result to the fault diagnosis process database, so that data updating of the fault diagnosis process database is realized, and the control module is used for inputting/modifying the diagnosis command to the diagnosis process database;

the fault analysis tree is mainly used for analyzing the switching value data, the method obtains the turnout fault of the switch machine with a specific switch machine type number through the inferential judgment of the switching value of a monitored object, the analysis efficiency is high, the judgment accuracy is high, and each machine type adopts a specific fault tree, and the method comprises the following conditions:

A) when the action time is longer than 13 seconds, taking the last action curve, if the current of the small step is about 0.5A, the action time acts for 1 second, indicating that the turnout is not unlocked, if the current of the small step is about 0.5A, the action time is about 2-4.5 seconds, indicating that the turnout meets the blockage in the action process, if the current of the small step is about 0.5A, the action time is about 5.5 seconds, indicating that the turnout is blocked, and if the fault of the gap adopts a 4mm clamping piece to simulate the fault of the clamping piece to verify whether the alarm state of the test system meets the requirement;

B) if the small step current does not exist, the last action curve is taken, if the small step current is about 0.5A, the contact of the surface secret detector is not in place, and if the small step current does not exist, the open circuit of a resistor and a diode in the loop is represented;

C) when the current of the small step is higher, the alternating current and the direct current represent voltage, the short circuit of the diode is indicated, otherwise, the short circuit of the resistor is indicated;

D) when no starting current exists in a current curve about 1 second, the action power supply is not supplied, starting current exists, the fuse gives an alarm, the fuse is disconnected, starting current exists, the fuse does not give an alarm, and the 1DQJ non-self-closing, DBQ falling or power supply instantaneous power-off lamp fault occurs;

the test method of 1DJQ includes the steps of simulating a 1DQJ excitation circuit fault in a mode of removing contact wiring, verifying whether the alarm state of a test system meets the requirement or not by using test criteria, simulating a DBQ fault in a phase-off mode by using the DBQ fault, verifying whether the alarm state of the test system meets the requirement or not by using the test criteria, and enabling the blocking fault to utilize tools such as a 4mm clamping piece and a wood block in the blocking test method.

The turnout fault diagnosis module utilizes a professional signal analysis technology and an artificial intelligence technology to realize automatic diagnosis of turnout faults and analysis and alarm of variation trend through analysis and learning of the monitoring parameters, and the fault tree analysis method has the analysis capability of 1DQJ excitation circuit faults, DBQ faults, conversion blocking faults, notch overrun faults, outdoor open-circuit faults and four-opening faults.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.