CN114910824A - Automatic pantograph lowering device fault judgment method, resetting method and system and vehicle - Google Patents
Automatic pantograph lowering device fault judgment method, resetting method and system and vehicle Download PDFInfo
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- CN114910824A CN114910824A CN202210536088.3A CN202210536088A CN114910824A CN 114910824 A CN114910824 A CN 114910824A CN 202210536088 A CN202210536088 A CN 202210536088A CN 114910824 A CN114910824 A CN 114910824A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/56—Testing of electric apparatus
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention belongs to the technical field of electric drive traffic equipment detection, and provides a fault judgment method, a reset method, a system and a vehicle for an automatic pantograph lowering device. The automatic pantograph lowering device fault judgment method comprises the steps of obtaining a pantograph raising instruction signal, an ADD state signal and a pantograph lowering in-place signal, and judging the effectiveness of the pantograph raising instruction signal, the ADD state signal and the pantograph lowering in-place signal; when the three signals are effective, performing negation logic operation after keeping the pantograph-ascending instruction signal for a preset time to obtain a first negation signal, and directly performing negation logic operation on the pantograph-descending in-place signal to obtain a second negation signal; performing AND logic operation on the ADD state signal, the first negation signal and the second negation signal, judging whether the AND logic operation result is true, if so, judging that the automatic pantograph lowering device has a fault, and latching the fault; otherwise, judging that the automatic pantograph lowering device has no fault.
Description
Technical Field
The invention belongs to the technical field of electric drive traffic equipment detection, and particularly relates to a fault judgment method, a reset method, a system and a vehicle for an automatic pantograph lowering device.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The Automatic Dropping Device (ADD) fault is triggered after the carbon slide plate of the pantograph is worn to a certain value. The ADD state signal is given by a pressure switch on the pantograph, the pressure switch of the ADD and an indication switch of the pantograph lifting pantograph to the position are connected in parallel in a gas circuit, and the two pressure switches are in a changed state at the stage of beginning pantograph lifting
The inventor finds that an ADD state signal is given under the condition that the pantograph is not in a lifting state, so that whether the automatic pantograph lowering device fails or not is judged directly according to the ADD state signal, false alarm is caused, the overhauling efficiency and the normal use of the automatic pantograph lowering device are affected, and even the automatic pantograph lowering device cannot be accurately reset.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a fault judgment method, a reset method, a system and a vehicle for an automatic pantograph lowering device, which can accurately judge whether the automatic pantograph lowering device has a fault or not and avoid false alarm of the automatic pantograph lowering device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a first aspect of the present invention provides a method for determining a fault of an automatic pantograph device, including:
acquiring a pantograph rising instruction signal, an ADD state signal and a pantograph falling in-place signal, and judging the effectiveness of the pantograph rising instruction signal, the ADD state signal and the pantograph falling in-place signal;
when the three signals are effective, performing negation logic operation after keeping the pantograph-ascending instruction signal for a preset time to obtain a first negation signal, and directly performing negation logic operation on the pantograph-descending in-place signal to obtain a second negation signal;
performing AND logic operation on the ADD state signal, the first negation signal and the second negation signal, judging whether the AND logic operation result is true, if so, judging that the automatic pantograph lowering device has a fault, and latching the fault; otherwise, judging that the automatic pantograph lowering device has no fault.
A second aspect of the present invention provides a system for determining a malfunction of an automatic pantograph device.
In one or more embodiments, an automatic pantograph device fault determination system, comprising:
the signal acquisition module is used for acquiring the pantograph rising instruction signal, the ADD state signal and the pantograph lowering in-place signal and judging the validity of the pantograph rising instruction signal, the ADD state signal and the pantograph lowering in-place signal;
the inverting logic operation module is used for performing inverting logic operation after keeping the pantograph rising instruction signal for a preset time to obtain a first inverting signal and directly performing inverting logic operation on the pantograph falling in-place signal to obtain a second inverting signal when the pantograph rising instruction signal, the pantograph falling in-place instruction signal and the second inverting signal are all effective;
the AND logic operation module is used for carrying out AND logic operation on the ADD state signal, the first negation signal and the second negation signal, judging whether an AND logic operation result is true, judging that the automatic bow-lowering device has a fault if the AND logic operation result is true, and latching the fault; otherwise, judging that the automatic pantograph lowering device has no fault.
In one or more embodiments, an automatic pantograph device fault determination system comprises:
the first AND gate, the second AND gate, the third AND gate, the fourth AND gate, the delayer, the first inverter and the second inverter;
one input ends of the first AND gate, the second AND gate and the third AND gate are all connected with a high level, and the other ends of the first AND gate, the second AND gate and the third AND gate are respectively connected with a pantograph rising instruction signal, an ADD state signal and a pantograph falling in-place signal;
when the results of the first AND gate, the second AND gate and the third AND gate are true:
the input end of the delayer is connected with a pantograph rising instruction signal, and the pantograph rising instruction signal is input into the first phase inverter after delaying for a preset time; the input end of the second inverter is directly connected with the pantograph lowering in-place signal;
and the input end of the fourth AND gate is respectively connected with the ADD state signal, the output end of the first phase inverter and the output end of the second phase inverter, and whether the automatic bow-reducing device fails or not is judged according to the output result of the fourth AND gate.
The third aspect of the invention provides a fault resetting method for an automatic pantograph reducing device, which comprises the following steps:
after the automatic pantograph lowering device is judged to have a fault, the pantograph is actively lowered at the moment, the pantograph raising instruction signal and the ADD state signal are obtained again, and the effectiveness of the pantograph raising instruction signal and the ADD state signal is judged;
when the two signals are effective, carrying out negation logic operation after keeping the pantograph rising instruction signal for a preset time to obtain a third negation signal;
performing AND logic operation on the ADD state signal and the third negation signal, judging whether the AND logic operation result is true, if so, judging that the fault of the automatic pantograph-lowering device still exists, and continuously latching the fault; otherwise, resetting the automatic pantograph device to cause a fault.
A fourth aspect of the present invention provides a fault resetting system for an automatic pantograph device, comprising:
the signal validity judging module is used for judging that the pantograph is actively descended after the automatic pantograph descending device fails, acquiring the pantograph ascending instruction signal and the ADD state signal again, and judging the validity of the pantograph ascending instruction signal and the ADD state signal;
the pantograph ascending instruction signal negation module is used for carrying out negation logic operation after keeping the pantograph ascending instruction signal for preset time when the pantograph ascending instruction signal negation module and the pantograph ascending instruction signal negation module are both effective, and obtaining a third negation signal;
the fault reset module is used for carrying out AND logic operation on the ADD state signal and the third negation signal, judging whether an AND logic operation result is true, judging that the fault of the automatic pantograph-lowering device still exists if the AND logic operation result is true, and continuously latching the fault; otherwise, resetting the fault of the automatic pantograph reducing device.
A fifth aspect of the invention provides a computer-readable storage medium.
In one or more embodiments, a computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps in the automatic pantograph device fault determination method as described above.
In one or more embodiments, a computer readable storage medium has stored thereon a computer program which, when executed by a processor, performs the steps in the automatic pantograph device fault reset method as described above.
A sixth aspect of the invention provides a computer apparatus.
In one or more embodiments, a computer apparatus includes a memory, a processor, and a computer program stored on the memory and executable on the processor, implementing the steps in the automatic pantograph device fault determination method as described above.
In one or more embodiments, a computer apparatus comprising a memory, a processor, and a computer program stored on the memory and executable on the processor implements the steps in the automatic pantograph fault resetting method described above.
A seventh aspect of the invention provides a vehicle.
In one or more embodiments, a vehicle includes an automatic pantograph device fault determination system as described above.
In one or more embodiments, a vehicle includes an automatic pantograph device fault reset system as described above.
Compared with the prior art, the invention has the beneficial effects that:
according to the method, an ADD state signal, a first negation signal and a second negation signal are synthesized to carry out AND logic operation, and when the AND logic operation result is true, the automatic pantograph lowering device is judged to have a fault and latch the fault, wherein the first negation signal is obtained by carrying out negation logic operation after keeping a pantograph raising instruction signal for a preset time, and the second negation signal is obtained by directly carrying out negation logic operation on a pantograph lowering in-place signal; according to the invention, the ADD fault is accurately judged through the logic judgment, and the overhauling efficiency and the normal use influence of the automatic pantograph lowering device caused by the fact that the ADD fault is mistakenly reported in the normal use process of the pantograph are avoided.
According to the method, after the fault of the automatic pantograph lowering device is accurately judged, the pantograph raising instruction signal and the ADD state signal are obtained again, when the pantograph raising instruction signal and the ADD state signal are effective, the logical operation of negation is carried out after the preset time of the pantograph raising instruction signal is kept, the third negation signal is obtained, finally, the fault of the automatic pantograph lowering device is judged to still exist through the logical operation of the ADD state signal and the third negation signal, and if the fault exists, the fault is latched continuously; otherwise, the automatic pantograph lowering device is reset to have a fault, so that the maintenance efficiency of the automatic pantograph lowering device is improved, and the normal use of the automatic pantograph lowering device is ensured.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a flow chart of a method for determining a fault in an automatic pantograph mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a fault determination system of an automatic pantograph mechanism according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for resetting a fault of an automatic pantograph mechanism of an embodiment of the invention;
fig. 4 is a schematic structural diagram of a fault resetting system of the dynamic pantograph device according to the embodiment of the invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
According to the background technology, an ADD state signal is also given in the non-lifting state of the pantograph, so that whether the automatic pantograph lowering device fails or not is judged directly according to the ADD state signal, false alarm is caused, the overhauling efficiency and the normal use of the automatic pantograph lowering device are affected, and even the automatic pantograph lowering device cannot be accurately reset.
The ADD state is judged at the stage of the non-pantograph lifting state, so that false alarm is easy to occur, and only the state after the pantograph lifting is in place can be normally judged. The invention provides a fault judgment method, a reset method and a system for an automatic pantograph lowering device, which can accurately judge whether the automatic pantograph lowering device has a fault or not and avoid false alarm of the automatic pantograph lowering device.
Example one
As shown in fig. 1, the present embodiment provides a method for determining a fault of an automatic pantograph device, which specifically includes the following steps:
s101: and acquiring a pantograph rising command signal, an ADD state signal and a pantograph falling in-place signal, and judging the effectiveness of the pantograph rising command signal, the ADD state signal and the pantograph falling in-place signal.
In a specific implementation process, the pantograph-ascending command signal is a pulse signal and is effective at a high level. The ADD state signal is an air pressure signal in a pipeline of the automatic pantograph lowering device. The pantograph lowering in-place signal is a level signal and is effective at a high level.
The active state of the ADD state signal is also high.
S102: when the three signals are effective, the pantograph-ascending instruction signal is kept for a preset time, then the inverting logic operation is carried out to obtain a first inverting signal, and the pantograph-descending in-place signal is directly subjected to the inverting logic operation to obtain a second inverting signal.
Here, the preset holding pantograph-raising command signal time is a time from when the pantograph receives a pantograph-raising command to when the pantograph-raising is completed.
For example: the pantograph raising command signal is maintained for a preset time T1, generally T1 is related to different pantograph parameters, such as T1 being 15 s.
S103: performing AND logic operation on the ADD state signal, the first negation signal and the second negation signal, judging whether the AND logic operation result is true, if so, judging that the automatic pantograph lowering device has a fault, and latching the fault; otherwise, judging that the automatic pantograph lowering device has no fault.
After the automatic pantograph-descending device is in fault latch, the state can not be reset no matter whether the pantograph state is in the pantograph state or not unless a logic judgment process of ADD fault reset is executed.
In the embodiment, an AND logic operation is carried out by integrating an ADD state signal, a first negation signal and a second negation signal, and when the AND logic operation result is true, the automatic pantograph lowering device is judged to have a fault and latch the fault, wherein the first negation signal is obtained by carrying out negation logic operation after the preset time of keeping a pantograph raising instruction signal, and the second negation signal is obtained by directly carrying out negation logic operation on a pantograph lowering in-place signal; the logic judgment realizes the accurate judgment of the ADD fault, and avoids the maintenance efficiency and the normal use influence of the automatic pantograph lowering device caused by the error report of the ADD fault in the normal use process of the pantograph.
Example two
As shown in fig. 2, the present embodiment provides a system for determining a fault of an automatic pantograph device, which specifically includes the following modules:
the signal acquisition module is used for acquiring the pantograph rising instruction signal, the ADD state signal and the pantograph lowering in-place signal and judging the validity of the pantograph rising instruction signal, the ADD state signal and the pantograph lowering in-place signal;
the negation logic operation module is used for keeping the pantograph-ascending instruction signal for a preset time and then carrying out negation logic operation to obtain a first negation signal and directly carrying out negation logic operation on the pantograph-descending in-place signal to obtain a second negation signal when the pantograph-ascending instruction signal, the pantograph-descending instruction signal and the first negation signal are all effective;
the AND logic operation module is used for carrying out AND logic operation on the ADD state signal, the first negation signal and the second negation signal, judging whether an AND logic operation result is true, judging that the automatic bow-lowering device has a fault if the AND logic operation result is true, and latching the fault; otherwise, judging that the automatic pantograph lowering device has no fault.
It should be noted that, each module in the present embodiment corresponds to each step in the first embodiment one to one, and the specific implementation process is the same, which is not described herein again.
EXAMPLE III
The embodiment provides a fault judgment system of an automatic pantograph-lowering device, which comprises a first AND gate, a second AND gate, a third AND gate, a fourth AND gate, a delayer, a first phase inverter and a second phase inverter;
one input ends of the first AND gate, the second AND gate and the third AND gate are all connected with a high level, and the other ends of the first AND gate, the second AND gate and the third AND gate are respectively connected with a pantograph rising instruction signal, an ADD state signal and a pantograph lowering in-place signal;
when the results of the first AND gate, the second AND gate and the third AND gate are true:
the input end of the delayer is connected with a pantograph rising instruction signal, and the pantograph rising instruction signal is input into the first phase inverter after delaying for a preset time; the input end of the second inverter is directly connected with the pantograph lowering in-place signal;
and the input end of the fourth AND gate is respectively connected with the ADD state signal, the output end of the first phase inverter and the output end of the second phase inverter, and whether the automatic bow-reducing device fails or not is judged according to the output result of the fourth AND gate.
The pantograph rising instruction signal is a pulse signal and is effective at a high level. The ADD state signal is an air pressure signal in a pipeline of the automatic pantograph lowering device. The pantograph lowering in-place signal is a level signal and is effective at a high level. The active state of the ADD state signal is also high.
Here, the preset holding time of the pantograph lifting command signal is the time from the pantograph receiving of the pantograph lifting command to the pantograph lifting completion.
For example: the pantograph raising command signal is maintained for a preset time T1, generally T1 is related to different pantograph parameters, such as T1 being 15 s.
In specific implementation, when the output result of the fourth AND gate is true, the automatic pantograph reducing device is judged to have a fault; and when the output result of the fourth AND gate is false, judging that the automatic pantograph reducing device has no fault.
In one or more embodiments, the automatic pantograph device fault determination system further comprises a latch for latching an automatic pantograph device fault.
Example four
As shown in fig. 3, the present embodiment provides a method for resetting a fault of an automatic pantograph device, which specifically includes the following steps:
s201: after the automatic pantograph lowering device is judged to be in fault, the pantograph is actively lowered at the moment, the pantograph raising command signal and the ADD state signal are obtained again, and effectiveness of the pantograph raising command signal and the ADD state signal is judged.
In a specific implementation, the automatic pantograph device failure determination method according to the first embodiment is adopted to determine that the automatic pantograph device fails.
In a specific implementation process, the pantograph-ascending command signal is a pulse signal and is effective at a high level. The ADD state signal is an air pressure signal in a pipeline of the automatic pantograph lowering device. The active state of the ADD state signal is also high.
S202: and when the two signals are effective, performing negation logic operation after keeping the pantograph rising instruction signal for a preset time, and obtaining a third negation signal.
Here, the preset holding pantograph-raising command signal time is a time from when the pantograph receives a pantograph-raising command to when the pantograph-raising is completed.
For example: the pantograph raising command signal is maintained for a preset time T1, generally T1 is related to different pantograph parameters, such as T1 being 15 s.
S203: performing AND logic operation on the ADD state signal and the third negation signal, judging whether the AND logic operation result is true, if so, judging that the fault of the automatic pantograph lowering device still exists, and continuously latching the fault; otherwise, resetting the automatic pantograph device to cause a fault.
In the embodiment, after the fault of the automatic pantograph lowering device is accurately judged, the pantograph raising instruction signal and the ADD state signal are obtained again, when the pantograph raising instruction signal and the ADD state signal are both effective, the logical operation of negation is carried out after the preset time of the pantograph raising instruction signal is kept, a third negation signal is obtained, finally, the fault of the automatic pantograph lowering device is judged to still exist through the logical operation of the ADD state signal and the third negation signal, and if the fault exists, the fault is latched continuously; otherwise, the automatic pantograph lowering device is reset to have a fault, so that the maintenance efficiency of the automatic pantograph lowering device is improved, and the normal use of the automatic pantograph lowering device is ensured.
EXAMPLE five
As shown in fig. 4, the present embodiment provides a fault resetting system for an automatic pantograph mechanism, which specifically includes the following modules:
the signal validity judging module is used for judging that the pantograph is actively descended after the automatic pantograph descending device fails, acquiring the pantograph ascending instruction signal and the ADD state signal again, and judging the validity of the pantograph ascending instruction signal and the ADD state signal;
the pantograph ascending instruction signal negation module is used for carrying out negation logic operation after keeping the pantograph ascending instruction signal for preset time when the pantograph ascending instruction signal negation module and the pantograph ascending instruction signal negation module are both effective, and obtaining a third negation signal;
the fault reset module is used for carrying out AND logic operation on the ADD state signal and the third negation signal, judging whether an AND logic operation result is true, judging that the fault of the automatic pantograph-lowering device still exists if the AND logic operation result is true, and continuously latching the fault; otherwise, resetting the automatic pantograph device to cause a fault.
It should be noted that, each module in the present embodiment corresponds to each step in the fourth embodiment one to one, and the specific implementation process is the same, which is not described herein again.
It is also understood that the automatic pantograph device fault resetting system can also be realized by a control device such as a relay, a logic gate device or a programmable logic controller.
EXAMPLE six
The present embodiment provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the method for determining a fault in an automatic pantograph device as described in the first embodiment.
EXAMPLE seven
The present embodiment provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the automatic pantograph device fault resetting method according to the fourth embodiment described above.
Example eight
The present embodiment provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and implements the steps in the method for determining a fault in an automatic pantograph device according to the first embodiment.
Example nine
The present embodiment provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and implements the steps in the automatic pantograph device fault resetting method according to the fourth embodiment.
EXAMPLE ten
The present embodiment provides a vehicle including the automatic pantograph device failure determination system as described in the second embodiment above.
EXAMPLE eleven
The present embodiment provides a vehicle including the automatic pantograph device failure determination system as described in the third embodiment above.
Example twelve
The present embodiment provides a vehicle including an automatic pantograph device fault reset system as described in embodiment five above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A fault judgment method for an automatic pantograph lowering device is characterized by comprising the following steps:
acquiring a pantograph rising instruction signal, an ADD state signal and a pantograph falling in-place signal, and judging the effectiveness of the pantograph rising instruction signal, the ADD state signal and the pantograph falling in-place signal;
when the three signals are effective, performing negation logic operation after keeping the pantograph-ascending instruction signal for a preset time to obtain a first negation signal, and directly performing negation logic operation on the pantograph-descending in-place signal to obtain a second negation signal;
performing AND logic operation on the ADD state signal, the first negation signal and the second negation signal, judging whether the AND logic operation result is true, if so, judging that the automatic pantograph lowering device has a fault, and latching the fault; otherwise, judging that the automatic pantograph lowering device has no fault.
2. The method for determining a malfunction of an automatic pantograph lifting device according to claim 1, wherein the predetermined time for maintaining the pantograph lifting command signal is a time from when the pantograph lifting command is received to when the pantograph lifting is completed.
3. The method for determining a malfunction of an automatic pantograph mechanism of claim 1 or 2, wherein the pantograph-raising command signal is a pulse signal and is active at a high level.
4. The method for determining the fault of the automatic pantograph device according to claim 1, wherein the ADD state signal is an air pressure signal in a pipeline of the automatic pantograph device.
5. The method for determining a malfunction of an automatic pantograph mechanism of claim 1, wherein the pantograph signal to position is a level signal and is active at a high level.
6. The utility model provides an automatic bow lowering device failure diagnosis system which characterized in that includes:
the signal acquisition module is used for acquiring the pantograph ascending instruction signal, the ADD state signal and the pantograph descending in-place signal and judging the effectiveness of the pantograph ascending instruction signal, the ADD state signal and the pantograph descending in-place signal;
the negation logic operation module is used for keeping the pantograph-ascending instruction signal for a preset time and then carrying out negation logic operation to obtain a first negation signal and directly carrying out negation logic operation on the pantograph-descending in-place signal to obtain a second negation signal when the pantograph-ascending instruction signal, the pantograph-descending instruction signal and the first negation signal are all effective;
the AND logic operation module is used for carrying out AND logic operation on the ADD state signal, the first negation signal and the second negation signal, judging whether an AND logic operation result is true, judging that the automatic bow-lowering device has a fault if the AND logic operation result is true, and latching the fault; otherwise, judging that the automatic pantograph lowering device has no fault.
7. A fault judgment system of an automatic bow-reducing device is characterized by comprising a first AND gate, a second AND gate, a third AND gate, a fourth AND gate, a delayer, a first phase inverter and a second phase inverter;
one input ends of the first AND gate, the second AND gate and the third AND gate are all connected with a high level, and the other ends of the first AND gate, the second AND gate and the third AND gate are respectively connected with a pantograph rising instruction signal, an ADD state signal and a pantograph lowering in-place signal;
when the results of the first AND gate, the second AND gate and the third AND gate are true:
the input end of the delayer is connected with a pantograph rising instruction signal, and the pantograph rising instruction signal is input into the first phase inverter after delaying for a preset time; the input end of the second inverter is directly connected with the pantograph lowering in-place signal;
and the input end of the fourth AND gate is respectively connected with the ADD state signal, the output end of the first phase inverter and the output end of the second phase inverter, and whether the automatic pantograph reducing device fails or not is judged according to the output result of the fourth AND gate.
8. The automatic pantograph device failure determination system of claim 7, wherein when the output result of the fourth and gate is true, it is determined that the automatic pantograph device has failed; and when the output result of the fourth AND gate is false, judging that the automatic pantograph reducing device has no fault.
9. The automatic pantograph device fault determination system of claim 7 or 8, wherein the automatic pantograph device fault determination system further comprises a latch for latching an automatic pantograph device fault.
10. A fault resetting method of an automatic pantograph lowering device is characterized by comprising the following steps:
after the automatic pantograph lowering device is judged to have a fault, the pantograph is actively lowered at the moment, the pantograph raising instruction signal and the ADD state signal are obtained again, and the effectiveness of the pantograph raising instruction signal and the ADD state signal is judged;
when the two signals are effective, carrying out negation logic operation after keeping the pantograph rising instruction signal for a preset time to obtain a third negation signal;
performing AND logic operation on the ADD state signal and the third negation signal, judging whether the AND logic operation result is true, if so, judging that the fault of the automatic pantograph-lowering device still exists, and continuously latching the fault; otherwise, resetting the automatic pantograph device to cause a fault.
11. The method for resetting the malfunction of an automatic pantograph device according to claim 10, wherein the malfunction of the automatic pantograph device is judged by the method for judging the malfunction of the automatic pantograph device according to any one of claims 1 to 5.
12. The method of claim 10, wherein the holding of the pantograph-raising command signal for the predetermined time is a time from when the pantograph is commanded to the completion of pantograph raising.
13. An automatic pantograph device fault reset system, characterized by comprising:
the signal validity judging module is used for judging that the pantograph is actively descended after the automatic pantograph descending device fails, acquiring the pantograph ascending instruction signal and the ADD state signal again, and judging the validity of the pantograph ascending instruction signal and the ADD state signal;
the pantograph ascending instruction signal negation module is used for carrying out negation logic operation after keeping the pantograph ascending instruction signal for preset time when the pantograph ascending instruction signal negation module and the pantograph ascending instruction signal negation module are both effective, and obtaining a third negation signal;
the fault reset module is used for carrying out AND logic operation on the ADD state signal and the third negation signal, judging whether an AND logic operation result is true, judging that the fault of the automatic pantograph-lowering device still exists if the AND logic operation result is true, and continuously latching the fault; otherwise, resetting the automatic pantograph device to cause a fault.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps in the automatic pantograph device failure determination method according to any one of claims 1 to 5;
or
The program when executed by a processor implements the steps in the automatic pantograph device fault reset method of any one of claims 10-12.
15. A computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized by carrying out the steps in the method for determining a malfunction in an automatic pantograph according to any one of claims 1 to 5;
or
Implementing the steps in the method for automatically resetting a pantograph of any one of claims 10-12.
16. A vehicle comprising the automatic pantograph apparatus failure determination system of claim 6;
or
Comprising the automatic pantograph device failure determination system of claims 7-9;
or
Comprising the automatic pantograph device fault reset system of claim 13.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210536088.3A CN114910824A (en) | 2022-05-17 | 2022-05-17 | Automatic pantograph lowering device fault judgment method, resetting method and system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210536088.3A CN114910824A (en) | 2022-05-17 | 2022-05-17 | Automatic pantograph lowering device fault judgment method, resetting method and system and vehicle |
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| CN114910824A true CN114910824A (en) | 2022-08-16 |
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| CN202210536088.3A Pending CN114910824A (en) | 2022-05-17 | 2022-05-17 | Automatic pantograph lowering device fault judgment method, resetting method and system and vehicle |
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| Country | Link |
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| CN (1) | CN114910824A (en) |
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