CN114789200A - Method and system for self-diagnosing and recording faults of cold rolling unit - Google Patents
Method and system for self-diagnosing and recording faults of cold rolling unit Download PDFInfo
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- CN114789200A CN114789200A CN202111196031.5A CN202111196031A CN114789200A CN 114789200 A CN114789200 A CN 114789200A CN 202111196031 A CN202111196031 A CN 202111196031A CN 114789200 A CN114789200 A CN 114789200A
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- 238000005097 cold rolling Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 14
- 230000001960 triggered effect Effects 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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Abstract
The invention discloses a method for self-diagnosing and recording faults of a cold rolling unit, which comprises the following steps: obtaining stop signals and manually input serial numbers of all cold rolling units; converting each group of stop signals into stop state words and recording the stop state words; one word has two bytes, one byte has eight bits, 16 bits each bit corresponds to a stop signal, each state word corresponds to a serial number and compares the stop state word with a manually input serial number, if the two are consistent, the current serial number and the state are output, the corresponding recording times are called according to the manually input query serial number, machine faults displayed by the stop state word in each group of the record are output and checked, the problem of the fault can be visually checked, and particularly, the query can still be recorded aiming at the stop caused by a few milliseconds of signal flash.
Description
Technical Field
The invention relates to the technical field of cold rolling units, in particular to a method and a system for self-diagnosing and recording faults of a cold rolling unit.
Background
In the control of the cold rolling mill unit, due to the high automation degree, a plurality of signals of the protection linkage condition of the rolling mill, the fact that the rolling mill contains impurity emulsion, the aging of equipment lines, the faults of signal lines and the like, the condition that certain signals are not input frequently causes the shutdown of the whole unit, or the condition that the rolling mill is rapidly decelerated due to the fact that certain signals are flashed off, equipment personnel cannot visually see the fault display through an operation picture and can only check the faults one by one, so that the long-time shutdown is caused, and the production efficiency of the rolling mill is seriously influenced.
Disclosure of Invention
Therefore, the invention aims to provide a method and a system for self-diagnosing and recording the faults of the cold rolling unit, which directly eliminate the faults by acquiring and storing the stop signals and combining the stop signals with manual input signals, are simple to operate and convenient to use, can visually detect the problems of the faults, and can still record and inquire the stops caused by signal flash-off for a few milliseconds.
In order to achieve the purpose, the method for self-diagnosing and recording the faults of the cold rolling unit comprises the following steps:
s1, obtaining stop signals of all cold rolling units and manually input query serial numbers;
s2, grouping all the stop signals according to categories, and correspondingly converting the 16-bit stop signals in each group into 1 stop state word and recording the stop state word;
and S3, calling corresponding recording times according to the manually input query sequence number, and outputting and checking machine faults displayed by the shutdown state words in each group of the record.
Further preferably, the type of the stop signal in S2 is divided according to the location of the cold rolling mill group equipment and the type of the cold rolling mill group equipment, and when the 16-bit stop signal in each group is correspondingly converted into 1 stop state word and recorded, the stop signal is triggered according to the state signal of the cold rolling mill; the method specifically comprises the following steps:
and performing OR logic operation on various state signals of the cold rolling mill, when the output of any state signal is 1, and the result of the OR logic operation is 1, triggering and recording 16-bit stop signals in each group at the moment, wherein the state signals of the cold rolling mill comprise three signals of quick stop, sudden stop and emergency stop corresponding to 1 stop state word.
Further preferably, the method further comprises the steps of inquiring the detection state word through manually inputting the serial number, outputting the corresponding detection state word if the manually input serial number is the same as the sequence number of the detection state word, converting the detection state word into a detection bit signal, calling each equipment input signal according to the detection signal, and judging whether the equipment is in fault or not according to the equipment input signal.
Further preferably, the method further comprises the step of obtaining a real-time picture signal of the cold rolling mill unit, wherein the real-time picture signal is used for assisting an operator in judging the fault to form a manual input serial number.
The invention also provides a system for self-diagnosing and recording the faults of the cold rolling unit, which comprises a shutdown signal acquisition module,
The device comprises an input signal acquisition module, a signal conversion module and a signal comparison module;
the shutdown signal acquisition module is used for acquiring shutdown signals of all cold rolling units;
the input signal acquisition module is used for acquiring a manually input query serial number;
the signal conversion module is used for grouping all the stop signals according to categories, correspondingly converting the 16-bit stop signals in each group into 1 stop state word and recording the stop state word;
and the signal comparison module is used for calling corresponding recording times according to the manually input query sequence number and outputting machine faults displayed by the shutdown state characters in each group for checking the record. Preferably, the signal conversion module further includes a signal trigger module, the signal trigger module is configured to perform or logical operation on various state signals of the cold rolling mill, when an output of any one of the state signals is 1, and a result of the or logical operation is 1, the stop signal with 16 bits in each group is triggered and recorded at this time, and the state signals of the cold rolling mill include three signals of fast stop, emergency stop and emergency stop corresponding to the converted 1 stop state word.
Furthermore, the input signal acquisition module also comprises a picture input signal acquisition module for acquiring a picture input signal of the cold rolling mill unit, wherein the real-time picture signal is used for assisting an operator to judge faults and form a manual input sequence number
Further preferably, the system further comprises a controllable digital storage module, wherein the controllable digital storage module is used for storing and sending the stop signal of the cold rolling unit to the stop state word converted by the signal conversion module.
Further preferably, the system further comprises an electrifying delay module, wherein the electrifying delay module is used for delaying the received stop signal of the cold rolling unit according to preset delay time and then sending the delayed stop signal to the control digital storage module for storage.
Compared with the prior art, the method and the system for self-diagnosing and recording the faults of the cold rolling unit at least have the following advantages:
1. the invention directly checks the fault by acquiring and storing the shutdown signal and combining the shutdown signal with the manual input signal, has simple operation and convenient use, can visually check the problem of the fault, and can still record and inquire the shutdown caused by a few milliseconds of signal flash.
2. The method and the system for self-diagnosing and recording the faults of the cold rolling unit can convert manually input serial numbers into detection state words, convert the detection state words into detection signals, call input signals of various devices according to the detection signals, judge whether the devices have faults or not according to the input signals of the devices, and enable device personnel to visually see fault display by combining operation pictures and output signals, so that the troubleshooting efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic flow chart of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
As shown in fig. 2, an embodiment of the invention provides a method for self-diagnosing and recording faults of a cold rolling mill train, which includes the following steps:
s1, obtaining stop signals of all cold rolling units and manually input query serial numbers;
s2, grouping all the stop signals according to categories, and correspondingly converting the 16-bit stop signals in each group into 1 stop state word and recording the stop state word; further preferably, in S1, the stop signal includes three status signals of quick stop, and quick stop of the cold rolling mill train, and further includes status signals of other equipment parts, and after the groups are classified according to the parts of the cold rolling mill train equipment and the equipment categories of the cold rolling mill train, when any one of the three status signals of quick stop, and quick stop of the cold rolling mill train occurs, the status signal of the other equipment parts in each group is triggered, and the 16-bit (bit) signal is converted into a status word (word). The trigger mechanism is as follows: and performing OR logic operation on various state signals of the cold rolling mill, and triggering and recording 16-bit stop signals in each group at the moment when the output of any state signal is 1 and the result of the OR logic operation is 1, wherein the stop signals correspond to the converted 1 stop state words.
For example, the diagnostic faults are divided into 23 groups according to the location and the category of the equipment, a 16-bit equipment signal is acquired in each group, and when any one of three shutdown signals occurs, the 16-bit signal of each group in the 23 groups is triggered to be converted into 1 state word, for example: in group 1, the 16-bit device signals respectively include:
the method comprises the following steps of overweight of a wrapper side steel coil, completion of zero calibration of a roll gap, overproof of a wrapper side coil diameter, overproof of a reeling side coil diameter, stopping of main transmission of a flying shear, normality of a thickness gauge after 5 frames of the flying shear, normal automatic step of rotation of a reeling machine, request of acid cleaning stop, request of acid cleaning quick stop, opening of tension of an outlet loop, stop and limit of the outlet loop rolling mill, normal injection of 1 frame emulsion, normal injection of 2 frame emulsion, normal injection of 3 frame emulsion and normal injection of 4 frame emulsion. When the equipment is stopped and at least one bit of the 16-bit equipment signals of the 23 groups is abnormal, the state word 1 corresponding to the position represents the group 1 and is highlighted.
And S3, calling corresponding recording times according to the manually input query sequence number, and outputting and checking machine faults displayed by the shutdown state words in each group of the record.
The method comprises the following steps of obtaining a real-time image signal of the cold rolling mill unit, wherein the real-time image signal is used for assisting an operator in judging faults and forming a manual input sequence number. And further, acquiring a halt state word (word) from the manual input serial number through inquiring the serial number, converting the halt state word into a bit signal, calling input signals of each device according to the detection signals, and judging whether the device fails or not according to the input signals of the device. And (4) judging whether the equipment has a fault or not by combining the equipment input signal under a real-time picture.
As shown in fig. 1, the invention also provides a system for self-diagnosing and recording the fault of the cold rolling unit, which is used for implementing the method and comprises a stop signal acquisition module, an input signal acquisition module, a signal conversion module and a signal comparison module; the shutdown signal acquisition module is used for acquiring shutdown signals of all cold rolling units;
the input signal acquisition module is used for acquiring a manually input query serial number;
the signal conversion module is used for grouping all the stop signals according to categories, correspondingly converting the 16-bit stop signals in each group into 1 stop state word and recording the stop state word;
and the signal comparison module is used for calling corresponding recording times according to the manually input query sequence number and outputting machine faults displayed by the shutdown state characters in each group for checking the record.
The signal conversion module also comprises a signal trigger module which is used for carrying out OR logic operation on various state signals of the cold rolling mill, when the output of any state signal is 1 or the result of the logic operation is 1, 16-bit stop signals in each group are triggered and recorded at the moment, and the state signals of the cold rolling mill comprise three signals of quick stop, emergency stop and emergency stop corresponding to 1 converted stop state word. Further preferably, the input signal acquisition module further comprises a real-time image acquisition module for acquiring a real-time image of the cold rolling mill unit, wherein the real-time image signal is used for assisting an operator to judge faults and form a manual input sequence number.
Further preferably, the system further comprises a controllable digital storage module, wherein the controllable digital storage module is used for storing and sending the stop signal of the cold rolling unit to the stop state word converted by the signal conversion module.
Further preferably, the system further comprises an electrifying delay module, wherein the electrifying delay module is used for delaying the received stop signal of the cold rolling unit according to preset delay time and then sending the delayed stop signal to the control digital storage module for storage.
In the common application embodiment of the method and the system, the method for the online diagnosis and recording of the faults of the cold rolling unit comprises a TDC, a stop signal acquisition module, a B _ W signal conversion module, an ETE energization delay module, a CNM _ I controllable digital storage module, an OR function block, an NOP1IC function block, a W _ B signal conversion module, an EQ _ R signal comparison module and an NSW4_ I digital signal conversion module.
A. The shutdown signal acquisition module comprises three signals of quick shutdown, sudden shutdown and emergency shutdown, is simultaneously connected with an OR functional block to perform OR gate logic operation, and each group consists of 16 bit signals and is converted into a state word. B. Each cycle of data scanning is 20ms, step A outputs a 1 signal to an ETE power-on delay module and then is connected with a CNM _ I controllable digital storage module pin, when the signal is 1, a halt state word obtained by a B _ W converter after conversion of various 16-system halt signals is output to an NOP1IC functional block, each NOP1IC functional block is connected with a W _ B signal conversion module, when the step A outputs the 1 signal, NOP1IC functional block recording is triggered, the current halt state word is recorded in the W _ B functional block, the halt state word is output to an NSW4_ I digital signal conversion module, the NSW4_ I functional block is a digital conversion module, when a halt sequence number signal is input into a WINCC picture, the sequence number signal is connected to an EQ _ R signal comparison module, the EQ _ R signal comparison module judges whether the input sequence number is consistent with the currently set sequence number or not, if the input sequence number is consistent with the currently set sequence number, the current sequence number is output, meanwhile, the EQ _ R signal comparison module is connected with the NSW4_ I digital signal conversion module, corresponding shutdown state words are output according to input serial number signals NSW4_ I, the shutdown state words are connected with the W _ B signal conversion module to output 16-bit signals, the 16-bit signals correspond to various linkage conditions, and the signals are transmitted to pictures for operators to inquire and watch through Ethernet communication between a CPU module of the Siemens TDC and the WINCC software of the picture main server.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.
Claims (10)
1. A method for self-diagnosing and recording faults of a cold rolling unit is characterized by comprising the following steps:
s1, obtaining stop signals of all cold rolling units and manually input query serial numbers;
s2, grouping all the stop signals according to categories, and correspondingly converting the 16-bit stop signals in each group into 1 stop state word and recording the stop state word;
and S3, calling corresponding recording times according to the manually input query sequence number, and outputting and checking machine faults displayed by the shutdown state characters in each group of the current record.
2. The method for self-diagnosing and recording a fault of a cold rolling mill train according to claim 1, wherein the type of the stop signal is classified according to the location of the cold rolling mill train equipment and the type of the cold rolling mill train equipment in S2.
3. The method for self-diagnosing and recording the fault of the cold-rolling mill group according to the claim 1 is characterized in that when the stop signal of 16 bits in each group is correspondingly converted into 1 stop state word and recorded in S2, the stop state word is triggered according to the state signal of the cold-rolling mill; the method specifically comprises the following steps:
carrying out OR logic operation on various state signals of the cold rolling mill, and triggering and recording 16-bit stop signals in each group at the moment when the output of any state signal is 1 or the result of the OR logic operation is 1, wherein the stop signals correspond to 1 converted stop state word; the state signals of the cold rolling mill comprise three signals of quick stop, emergency stop and emergency stop.
4. The method of claim 1, further comprising querying for a detection status word by manually entering a serial number, outputting a corresponding detection status word if the manually entered serial number is the same as the sequence number of the detection status word, converting the detection status word into a detection bit signal, retrieving an input signal for each device according to the detection signal, and determining whether the device is faulty according to the input signal for the device.
5. The method for self-diagnosing and recording the fault of the cold-rolling mill unit according to claim 1, characterized by further comprising the step of obtaining a real-time picture signal of the cold-rolling mill unit, wherein the real-time picture signal is used for assisting an operator in judging the fault and forming a manual input serial number.
6. The system for self-diagnosing and recording the faults of the cold rolling unit is characterized by comprising a shutdown signal acquisition module,
The device comprises an input signal acquisition module, a signal conversion module and a signal comparison module;
the shutdown signal acquisition module is used for acquiring shutdown signals of all cold rolling units;
the input signal acquisition module is used for acquiring a manually input query serial number;
the signal conversion module is used for grouping all the stop signals according to categories, correspondingly converting the 16-bit stop signals in each group into 1 stop state word and recording the stop state word;
and the signal comparison module is used for calling corresponding recording times according to the manually input query sequence number and outputting machine faults displayed by the shutdown state characters in each group for checking the record.
7. The system for self-diagnosing and recording the fault of the cold-rolling mill group according to claim 5, characterized in that the signal conversion module further comprises a signal trigger module, the signal trigger module is used for carrying out OR logic operation on various state signals of the cold-rolling mill, when any state signal is output to be 1, or the logic operation result is 1, 16-bit stop signals in each group at the moment are triggered and recorded, and the state signals of the cold-rolling mill corresponding to the converted 1 stop state words comprise three signals of quick stop, emergency stop and emergency stop.
8. The system for self-diagnosing and recording faults of a cold-rolling mill unit according to claim 5, wherein the input signal acquisition module further acquires a real-time picture of the cold-rolling mill unit, and the real-time picture signal is used for assisting an operator in judging the faults and forming a manual input serial number.
9. The system for self-diagnosing and recording the fault of the cold rolling mill group according to claim 5, further comprising a controllable digital storage module, wherein the controllable digital storage module is used for storing and sending the stop signal of the cold rolling mill group to the stop state word converted by the signal conversion module.
10. The system for self-diagnosing and recording the faults of the cold rolling unit according to claim 8, characterized by further comprising an electrifying delay module, wherein the electrifying delay module is used for sending the received stop signals of the cold rolling unit to the control digital storage module for storage after delaying according to preset delay time.
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