CN112319554B - Multipoint traction turnout synchronous fault monitoring method and device and electronic equipment - Google Patents
Multipoint traction turnout synchronous fault monitoring method and device and electronic equipment Download PDFInfo
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Abstract
The embodiment of the invention provides a multipoint traction turnout synchronous fault monitoring method, a multipoint traction turnout synchronous fault monitoring device and electronic equipment, wherein the method comprises the following steps: determining a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period; and if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value, checking the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine. The method, the device and the electronic equipment provided by the embodiment of the invention realize the reduction of equipment cost and labor cost of fault monitoring.
Description
Technical Field
The invention relates to the technical field of intelligent maintenance of railway signals of rail transit, in particular to a method and a device for monitoring synchronous faults of multipoint traction turnout junctions and electronic equipment.
Background
In rail transit, switches enable trains to switch from one track to another. The switch conversion is controlled by an interlocking system, and the interlocking system drives the switch conversion by controlling the rotation of the point switch. With the continuous improvement of urban rail transit and railway transportation speed, further requirements are provided for railway turnout conversion speed, the application requirements of high-speed large turnout are gradually increased, the turnout needs to be synchronously pulled by a plurality of pulling points to complete conversion, and the conversion speed of the large turnout is improved.
The multiple traction points of the turnout finish required conversion displacement within a specified time, and simultaneously meet the requirement of peak-shifting starting of the multiple traction points, but at present, because the conversion of a plurality of points is controlled to often occur, after the turnout is used for a period of time, each traction point is blocked, snake-shaped motion occurs, additional resistance exists, the switch rail generates larger deformation, and great damage is caused to the switch point of the turnout; in the turnout conversion process, due to the twisting and snake-shaped movement of each traction point, the problems of close contact, switch rail crawling and the like are derived, the turnout conversion can meet the existing operation requirements only by regular rectification, the real-time synchronous state monitoring cannot be carried out, and a large amount of manpower and material resources are consumed by regular power and electricity combination rectification in the maintenance process. Some rail transit industries record the actions of related braking relays through high-definition cameras as basis judgment, but the movements of relay groups have meticulous logic relation, the action time sequence among the relays is in the millisecond level, the difference is very slight, the data storage of the high-definition cameras is stacked, and the calling and the acquisition of data are difficult, so that huge money is consumed for installing the high-definition cameras and methods for judging the relay faults through human eyes are not paid.
Therefore, how to avoid the high equipment cost and the high labor cost of troubleshooting in the existing multipoint traction turnout is still a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The embodiment of the invention provides a method and a device for monitoring synchronous faults of a multipoint traction turnout and electronic equipment, which are used for solving the problems of high equipment cost and high labor cost of fault troubleshooting in the existing multipoint traction turnout.
In a first aspect, an embodiment of the present invention provides a method for monitoring a synchronous fault of a multipoint traction turnout, including:
determining a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period;
and if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value, checking the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine.
In this method, the first threshold is 300ms.
The method further comprises the following steps:
if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is determined not to exceed a first preset threshold, determining the time difference obtained by subtracting the second current drop moment of the second current curve from the first current drop moment of the first current curve;
if the time difference is larger than a second threshold value, adjusting the conversion stroke of the first traction point;
if the time difference is smaller than a third threshold value, adjusting the conversion stroke of the second traction point;
the current falling moment is the moment when the corresponding current curve falls to a specific threshold for the first time.
In this method, the second threshold is 0, and the specific threshold is 0.6A.
In this method, the third threshold is 0.
The method further comprises the following steps:
if the current curves collected by the three first current collection points of the first traction point switch machine in any time period are overlapped and the current curves collected by the three second current collection points of the second traction point switch machine in any time period are overlapped, determining that the first current curve of the first traction point switch machine is any one of the current curves collected by the three first current collection points, and the second current curve of the second traction point switch machine in the same time period as the first current curve is any one of the current curves collected by the three second current collection points;
the three first current collecting points are respectively positioned on two connecting lines between a 1DQJF relay and a DBQ phase failure protector and on a connecting line between the 1DQJ relay and the DBQ phase failure protector in the first traction point switch machine.
In the method, when any one first current acquisition point and any one second current acquisition point acquire current, a Hall sensor with the full range of 5A and the accuracy of 0.1 percent is used, and the acquisition frequency is 3200Hz.
In a second aspect, an embodiment of the present invention provides a multipoint traction turnout synchronization fault monitoring device, including:
the determining unit is used for determining a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period;
and the checking unit is used for checking the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value.
In a third aspect, an embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the multipoint traction switch synchronization fault monitoring method provided in the first aspect when executing the program.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the multipoint traction switch synchronization fault monitoring method as provided in the first aspect.
The method, the device and the electronic equipment provided by the embodiment of the invention determine a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period; and if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value, checking the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine. Therefore, the embodiment of the invention adopts the method of collecting the current waveform curve and then extracting and comparing the curve characteristics to replace a high-definition camera and human eye observation to monitor the synchronous state of the multipoint traction point switch in real time. Therefore, the method, the device and the electronic equipment provided by the embodiment of the invention realize reduction of equipment cost and labor cost of fault monitoring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flow chart of a multipoint traction turnout synchronization fault monitoring method provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of two current curves corresponding to a switch machine of two traction points in the same multi-point traction switch system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a ZDJ-9 switch machine control circuit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a multipoint traction turnout synchronization fault monitoring device provided in the embodiment of the present invention;
fig. 5 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments of the present invention without inventive step, are within the scope of the present invention.
The existing pollen particle detection based on the prior frame generally has the problems of low effectiveness, robustness and accuracy. Therefore, the embodiment of the invention provides a synchronous fault monitoring method for a multipoint traction turnout. Fig. 1 is a schematic flow chart of a multipoint traction switch synchronization fault monitoring method provided in an embodiment of the present invention, and as shown in fig. 1, the method includes:
step 110, a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period are determined.
Specifically, for any two switch machines which need to judge whether an indoor relay fault exists, the respective current curves of the two switch machines in the same time period need to be collected. The switch machines in the same multi-point traction turnout system are identical in structure, so that the current curves of the switch machines are acquired in the same mode. Generally, the current of the switch machine, i.e. the current value collected on the connection from the output line of the DBQ open-phase protector in the switch machine control circuit to the node of the access relay 1DQJ or the relay 1DQJF, is a loop formed by the switch machine control circuit, so the current collected on each connection is the current of the switch machine, and the current collected on each connection should be equal under normal conditions.
Specifically, after determining the first current curve and the second current-time curve, feature extraction and analysis are required to be performed on the two current curves, and the feature extracted first is the inrush current time in the curves. Fig. 2 is a schematic diagram of two current curves corresponding to switch machines at two tow points in the same multi-point tow switch system according to an embodiment of the present invention. As shown in fig. 2, J1 represents a first current curve, J2 represents a second current curve, the abscissa in the coordinates is a time axis, the units of numerical values on the time axis are milliseconds (ms), the numerical values on the ordinate axis represent the current magnitude in amperes (a), the first rush current time in the first current curve in fig. 2 is the first peak time in the first current curve, i.e., the time is at T1 (T1 is approximately 91 ms), and the second rush current time in the second current curve is the first peak time in the second current curve, i.e., the time is at T2 (T2 is approximately 151 ms). And determining the time difference of the peak-to-peak starting of the two traction point switches by calculating the time difference between the first impulse current time and the second impulse current time, and if the time difference exceeds a preset threshold value, indicating that the pick-up time of the switches is too slow, and executing a command for checking the states of 1DQJ relays of the first traction point switch and the second traction point switch.
The method provided by the embodiment of the invention comprises the steps of determining a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period; and if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value, checking the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine. Therefore, the embodiment of the invention adopts the method of collecting the current waveform curve and then extracting and comparing the curve characteristics to replace a high-definition camera and human eye observation to monitor the synchronous state of the multipoint traction point switch in real time. Therefore, the method provided by the embodiment of the invention realizes the reduction of equipment cost and labor cost of fault monitoring.
In any of the above embodiments, in the method, the first threshold is 300ms.
Specifically, for a common switch machine, such as a double-machine single-action ZDJ-9 switch machine, the first threshold value is set to be the best 300ms, 300ms is the maximum time difference of peak-staggering starting of the two traction point switch machines, and if the time difference is more than 300ms, the switch machine relay suck-up time is determined to be slow.
Based on any of the above embodiments, the method further includes:
if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is determined not to exceed a first preset threshold, determining the time difference obtained by subtracting the second current drop moment of the second current curve from the first current drop moment of the first current curve;
if the time difference is larger than a second threshold value, adjusting the conversion stroke of the first traction point;
if the time difference is smaller than a third threshold value, adjusting the conversion stroke of the second traction point;
the current falling moment is the moment when the corresponding current curve falls to a specific threshold for the first time, the second threshold is not less than 0, and the third threshold is not more than 0.
Specifically, if it is determined that the time difference between the first impulse current time of the first current curve and the second impulse current time of the second current curve does not exceed a first preset threshold, that is, the time difference between the peak-to-peak start of the switch machine at the two traction points is smaller than the maximum time difference (that is, the first preset threshold), that is, it is determined that the time when the switch machine relay is attracted is not delayed, it is continuously determined whether the outdoor switch point mechanical device needs to be adjusted. The judgment criterion is to determine a first current drop time of the first current curve and a second current drop time of the second current curve, and subtract the latter from the former to calculate the time difference. If the time difference is greater than a second threshold value and the second threshold value is not less than 0, the conversion process of the first traction point is adjusted, namely the first current falling time is greater than the second current falling time, the first traction point switch machine is slowly converted into place, the conversion process of the first traction point needs to be adjusted, if the time difference is less than a third threshold value and the third threshold value is not greater than 0, the conversion process of the second traction point is adjusted, namely the second current falling time is greater than the first current falling time, the second traction point switch machine is slowly converted into place, the conversion process of the second traction point needs to be adjusted, usually, the value of the second threshold value is 0 or slightly greater than 0, and the value of the third threshold value is 0 or slightly less than 0, therefore, the time difference under the remaining condition indicates that the first current falling time is basically the same as the second current falling time (the difference is not greater), and the time difference is an ideal state of being converted into place without adjustment. It should be noted herein that the current falling time refers to a time when a corresponding current curve first falls to a specific threshold, generally, the current curve of each switch machine is a current peak value formed by firstly smoothing, then triggering a sudden rise through starting and then suddenly falling, then keeping a long time stable after falling to a certain height, and then slowly descending in a stepwise manner, and the specific threshold may set a special value, so that the time when the current curve first falls to the specific threshold is a time in the stepwise falling process after passing through the current peak, and is used for representing a conversion end event point.
In any of the above embodiments, in the method, the second threshold is 0, and the specific threshold is 0.6A.
Specifically, the second threshold is set to 0, that is, as long as the first current drop time exceeds the second current drop time, it is determined that the first traction point switch machine is switched to the target position slowly, and the switching process of the first traction point needs to be adjusted. Therefore, setting the second threshold value to 0 corresponds to setting the adjustment conditions more strictly, and if the time lag is short, the shift schedule is adjusted regardless of how short the lag time is. For a common switch machine, such as a dual-machine single-action ZDJ-9 switch machine, a specific threshold value of 0.6A is preferred.
According to any of the embodiments, in the method, the third threshold is 0.
Specifically, the third threshold is set to 0, that is, as long as the second current drop time exceeds the first current drop time, it is determined that the switch of the second traction point switch machine is slow to switch in place, and the switching process of the second traction point needs to be adjusted. Therefore, setting the third threshold value to 0 corresponds to setting the adjustment conditions more strictly, and if the time lag is short, the adjustment of the transition stroke is performed regardless of the length of the lag time. Particularly, when the third threshold and the second threshold are both 0, the condition for judging whether the turnout mechanical device of the outdoor switch machine needs to be adjusted is set to be strictest, and as long as the first current falling time is different from the second current falling time, the conversion process of the traction point corresponding to the larger current falling time is adjusted.
Based on any one of the above embodiments, the method further includes:
if the current curves collected by the three first current collection points of the first traction point switch machine in any time period are overlapped and the current curves collected by the three second current collection points of the second traction point switch machine in any time period are overlapped, determining that the first current curve of the first traction point switch machine is any one of the current curves collected by the three first current collection points, and the second current curve of the second traction point switch machine in the same time period as the first current curve is any one of the current curves collected by the three second current collection points;
the three first current collecting points are respectively positioned on two connecting lines between a 1DQJF relay and a DBQ phase failure protector and on a connecting line between the 1DQJ relay and the DBQ phase failure protector in the first traction point switch machine.
Specifically, fig. 3 is a schematic structural diagram of a ZDJ-9 switch machine control circuit according to an embodiment of the present invention, as shown in fig. 3, a current of a switch machine, that is, a current value collected on a connection line from an output line of a DBQ open-phase protector in the switch machine control circuit to a DQJ node or a DQJF node of a relay 1, that is, a current curve corresponding to a point M, a point N, and a point P in fig. 3 is collected, because the switch machine control circuit forms a loop, current values collected at the same time at the above collection points are currents of the switch machine, and current values collected at the same time at the collection points should be equal in a normal case. Therefore, when determining the first current curve of the first traction point switch and the second current curve of the second traction point switch in the same time period, firstly, it is determined that the current curves collected by the three first current collection points of the first traction point switch in a certain time period are coincident, and the current curves collected by the three second current collection points of the second traction point switch in the certain time period are coincident, so that the current curves of the two switches in the certain time period are ensured to be normal and at least conform to the rule that a switch control circuit forms a loop, on the basis, any one of the current curves collected by the three first current collection points in the certain time period is used as the first current curve of the first traction point switch, and any one of the current curves collected by the three second current collection points in the certain time period is used as the second current curve of the second traction point switch in the same time period.
Based on any embodiment, in the method, when any one of the first current collection point and any one of the second current collection point collects current, the hall sensor with the full range of 5A and the accuracy of 0.1% is used, and the collection frequency is 3200Hz.
Specifically, in order to ensure the time accuracy and the current magnitude accuracy of the acquired current curve, the used current acquisition device is a hall sensor with a full scale of 5A, an accuracy of 0.1% and an acquisition frequency of 3200Hz.
Based on any one of the above embodiments, an embodiment of the present invention provides a device for monitoring synchronous faults of a multipoint traction turnout, and fig. 4 is a schematic structural diagram of the device for monitoring synchronous faults of a multipoint traction turnout provided in the embodiment of the present invention. As shown in fig. 4, the apparatus includes a determination unit 410 and a troubleshooting unit 420, wherein,
the determining unit 410 is configured to determine a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period;
the checking unit 420 is configured to check the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine if it is determined that a time difference between a first inrush current time of the first current curve and a second inrush current time of the second current curve is greater than a first preset threshold.
According to the device provided by the embodiment of the invention, a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period are determined; and if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value, checking the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine. Therefore, the embodiment of the invention adopts the method of collecting the current waveform curve and then extracting and comparing the curve characteristics to replace a high-definition camera and human eye observation to monitor the synchronous state of the multipoint traction point switch in real time. Therefore, the device provided by the embodiment of the invention realizes the reduction of equipment cost and labor cost of fault monitoring.
In the apparatus according to any of the above embodiments, the first threshold is 300ms.
Based on any of the above embodiments, the apparatus further includes an adjusting unit, specifically configured to:
if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is determined not to exceed a first preset threshold, determining the time difference obtained by subtracting the second current drop moment of the second current curve from the first current drop moment of the first current curve;
if the time difference is larger than a second threshold value, adjusting the conversion stroke of the first traction point;
if the time difference is smaller than a third threshold value, adjusting the conversion stroke of the second traction point;
the current drop-back moment is the moment when the corresponding current curve first drops to a specific threshold value.
According to any of the above embodiments, in the apparatus, the second threshold is 0, and the specific threshold is 0.6A.
According to any of the above embodiments, in the apparatus, the third threshold is 0.
Based on any of the above embodiments, the apparatus further includes a predetermined unit, specifically configured to:
if the current curves collected by the three first current collection points of the first traction point switch machine in any time period are coincident and the current curves collected by the three second current collection points of the second traction point switch machine in any time period are coincident, determining that the first current curve of the first traction point switch machine is any one of the current curves collected by the three first current collection points, and the second current curve of the second traction point switch machine in the same time period as the first current curve is any one of the current curves collected by the three second current collection points;
the three first current collecting points are respectively positioned on two connecting lines between a 1DQJF relay and a DBQ phase failure protector and on a connecting line between the 1DQJ relay and the DBQ phase failure protector in the first traction point switch machine.
Based on any one of the above embodiments, in the device, when any one of the first current collection points and any one of the second current collection points collect current, a hall sensor with a full-scale range of 5A and an accuracy of 0.1% is used, and the collection frequency is 3200Hz.
Fig. 5 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 5, the electronic device may include: a processor (processor) 501, a communication Interface (Communications Interface) 502, a memory (memory) 503 and a communication bus 504, wherein the processor 501, the communication Interface 502 and the memory 503 are communicated with each other through the communication bus 504. The processor 501 may invoke a computer program stored on the memory 503 and operable on the processor 501 to perform the multipoint traction switch synchronization fault monitoring method provided by the above embodiments, for example, including determining a first current profile of a first traction point switch and a second current profile of a second traction point switch within the same time period; and if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value, checking the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine.
In addition, the logic instructions in the memory 503 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Embodiments of the present invention further provide a non-transitory computer readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the method for monitoring synchronous faults of a multi-point traction switch provided in the foregoing embodiments when executed by a processor, for example, the method includes determining a first current curve of a first traction point switch and a second current curve of a second traction point switch in the same time period; and if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value, checking the states of the 1DQJ relays of the first traction point switch machine and the second traction point switch machine.
The above-described system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A multipoint traction turnout synchronous fault monitoring method is characterized by comprising the following steps:
determining a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period; the first traction point switch machine and the second traction point switch machine are switch machines in the same multi-point traction turnout system; for each of the current of the first traction point switch and the current of the second traction point switch, said each current is collected on the connection before the switch machine control circuit interrupts the output line of the phase protector DBQ to the access relay 1DQJ or relay 1DQJF node;
if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is larger than a first preset threshold value, checking the states of 1DQJ relays of the first traction point switch machine and the second traction point switch machine;
if the time difference between the first impact current moment of the first current curve and the second impact current moment of the second current curve is determined not to exceed a first preset threshold, determining the time difference obtained by subtracting the second current drop moment of the second current curve from the first current drop moment of the first current curve;
if the time difference is larger than a second threshold value, adjusting the conversion stroke of the first traction point;
if the time difference is smaller than a third threshold value, adjusting the conversion stroke of the second traction point;
the current falling moment is the moment when the corresponding current curve falls to a specific threshold for the first time.
2. The multipoint traction turnout synchronization fault monitoring method according to claim 1, wherein said first preset threshold value is 300ms.
3. The multipoint traction turnout synchronization fault monitoring method according to claim 1, wherein the second threshold value is 0, and the specific threshold value is 0.6A.
4. The multipoint traction switch synchronization fault monitoring method according to claim 3, wherein the third threshold is 0.
5. The multipoint traction turnout synchronization fault monitoring method according to claim 1 or 2, further comprising:
if the current curves collected by the three first current collection points of the first traction point switch machine in any time period are overlapped and the current curves collected by the three second current collection points of the second traction point switch machine in any time period are overlapped, determining that the first current curve of the first traction point switch machine is any one of the current curves collected by the three first current collection points, and the second current curve of the second traction point switch machine in the same time period as the first current curve is any one of the current curves collected by the three second current collection points;
the three first current collecting points are respectively positioned on two connecting lines between a 1DQJF relay and a DBQ phase failure protector and on a connecting line between the 1DQJ relay and the DBQ phase failure protector in the first traction point switch machine.
6. The multipoint traction turnout synchronous fault monitoring method according to claim 5, wherein when any one of the first current collection point and any one of the second current collection points collects current, a Hall sensor with a full-scale range of 5A and an accuracy of 0.1% is used, and the collection frequency is 3200Hz.
7. The utility model provides a synchronous fault monitoring devices of multiple spot traction switch which characterized in that includes:
the determination unit is used for determining a first current curve of a first traction point switch machine and a second current curve of a second traction point switch machine in the same time period; the first traction point switch machine and the second traction point switch machine are switch machines in the same multi-point traction turnout system; for each of the current of the first traction point switch and the current of the second traction point switch, said each current is collected on the connection before the switch machine control circuit interrupts the output line of the phase protector DBQ to the access relay 1DQJ or relay 1DQJF node;
a checking unit, configured to check a state of a 1DQJ relay of the first traction point switch machine and the second traction point switch machine if it is determined that a time difference between a first inrush current time of the first current curve and a second inrush current time of the second current curve is greater than a first preset threshold;
the checking unit is further configured to determine a time difference obtained by subtracting a second current drop time of the second current curve from a first current drop time of the first current curve if it is determined that a time difference between the first impact current time of the first current curve and the second impact current time of the second current curve does not exceed a first preset threshold;
if the time difference is larger than a second threshold value, adjusting the conversion stroke of the first traction point;
if the time difference is smaller than a third threshold value, adjusting the conversion stroke of the second traction point;
the current drop-back moment is the moment when the corresponding current curve first drops to a specific threshold value.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of the multipoint traction switch synchronization fault monitoring method according to any one of claims 1 to 6.
9. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the steps of the multipoint traction switch synchronization fault monitoring method according to any of claims 1 to 6.
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