CN110672158A - Pantograph health management state detection method - Google Patents
Pantograph health management state detection method Download PDFInfo
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- CN110672158A CN110672158A CN201911003861.4A CN201911003861A CN110672158A CN 110672158 A CN110672158 A CN 110672158A CN 201911003861 A CN201911003861 A CN 201911003861A CN 110672158 A CN110672158 A CN 110672158A
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a pantograph health management state detection method, which comprehensively and comprehensively detects the current receiving state condition, contact pressure, slide plate thickness, pantograph net following condition and pantograph pull-out value of a pantograph, can comprehensively analyze and evaluate pantograph net following condition images and the parameters of the pantograph, timely transmits fault diagnosis information to a driver and gives an alarm, can output a fault coping strategy, can be wirelessly and remotely transmitted to a vehicle control center, timely masters the vehicle fault state by vehicle control, timely coordinates with the driver, copes with fault treatment, minimizes the fault influence to the maximum extent, can early warn the fault in advance, intervene the pantograph fault in advance, reduce the risk of fault occurrence, and improve the reliability and usability of the pantograph.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a pantograph health management state detection method.
Background
Domestic pantograph detection is only in a starting stage, and a technology for performing fault diagnosis, fault analysis and fault alarm health management on a pantograph and a contact network does not exist. The existing pantograph detection technology mainly comprises the steps of detecting the pull-out value of a pantograph, detecting the arc-drawing condition of the pantograph by using a pantograph-set arc-drawing detection sensor and detecting the contact pressure of a pantograph-catenary, but the detection methods are single and cannot accurately detect and evaluate the overall health state of the pantograph. At present, a health management system which can detect pantograph net following performance, a pantograph pull-out value, pantograph slide plate thickness detection, pantograph contact pressure detection and comprehensive evaluation of a pantograph is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem that the prior art is insufficient, and provides a pantograph health management state detection method which can comprehensively evaluate the health state of a pantograph and improve the accuracy of an evaluation result.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a pantograph health management state detection method mainly comprises the following implementation processes: collecting the thickness value of the sliding plate, comparing the thickness value of the sliding plate with a set initial pre-alarm value, and outputting a pre-alarm signal if the difference between the thickness value of the sliding plate and the initial pre-alarm value is less than a threshold value T; if the thickness of the sliding plate is lower than the lowest thickness value allowed by operation, the contact pressure detected by the pantograph sliding plate is detected in combination with the contact pressure detection of the pantograph at the moment, and when the contact pressure detected by the sliding plate is within a normal range, the contact pressure is judged to be normal; if the contact pressure value detected by the sliding plate is not in the normal range, analyzing whether the pull-out value and the lifting amount of the contact net are normal or not, and if not, outputting alarm information; and if the contact pull-out value and the lifting amount are normal, outputting early warning information of abnormal contact pressure of the pantograph.
According to the method and the device, after the alarm information is output, the excessive lifting amount of the contact network is evaluated, and meanwhile, the alarm information that the contact network needs to be further overhauled is output to a vehicle control center. The vehicle control center can process the maintenance alarm information conveniently in time.
And early warning information of abnormal pantograph contact pressure is sent to a driver HMI and a vehicle control center, and the vehicle is output to return to a warehouse to further detect the pantograph contact pressure value.
The realization process for further detecting the contact pressure value of the pantograph comprises the following steps: collecting a pantograph-catenary following image, comparing the pantograph-catenary following image with an electric arc image, judging whether the pantograph-catenary following performance is normal or not, if not, transmitting alarm information of poor pantograph-catenary following to a vehicle control center through position information recorded by an electronic positioning tag, and if the pantograph is seriously pulled and the contact pressure, the pull-out value and the lifting amount of the pantograph are normal, outputting a contact maintenance instruction; and when the current electric spark lasts for more than 200ms, judging that the arc discharge is serious.
The thickness sensor is arranged on the sliding plate to acquire the thickness value of the sliding plate, so that the method is simple to realize and low in cost.
In the invention, the threshold T =1mm, and the accuracy of pre-alarming is further ensured.
In the invention, the minimum thickness value is 5mm, so that misjudgment is prevented.
A pantograph health management state detection system, comprising:
the acquisition module is used for acquiring the thickness value of the sliding plate;
the comparison module is used for comparing the thickness value of the sliding plate with a set initial pre-alarm value;
a processing module for performing the following operations: if the difference between the thickness value of the sliding plate and the initial pre-alarm value is smaller than a threshold value T, outputting a pre-alarm signal; if the difference between the thickness value of the sliding plate and the initial pre-alarm value is smaller than a threshold value T, outputting a pre-alarm signal; if the thickness of the sliding plate is lower than the lowest thickness value allowed by operation, the contact pressure detected by the pantograph sliding plate is detected in combination with the contact pressure detection of the pantograph at the moment, and when the contact pressure detected by the sliding plate is within a normal range, the contact pressure is judged to be normal; if the contact pressure value detected by the sliding plate is not in the normal range, analyzing whether the pull-out value and the lifting amount of the contact net are normal or not, and if not, outputting alarm information; and if the contact pull-out value and the lifting amount are normal, outputting early warning information of abnormal contact pressure of the pantograph.
The realization process for further detecting the contact pressure value of the pantograph comprises the following steps: collecting a pantograph-catenary following image, comparing the pantograph-catenary following image with an electric arc image, judging whether the pantograph-catenary following performance is normal or not, if not, transmitting alarm information of poor pantograph-catenary following to a vehicle control center through position information recorded by an electronic positioning tag, and if the pantograph is seriously pulled and the contact pressure, the pull-out value and the lifting amount of the pantograph are normal, outputting a contact maintenance instruction; and when the current electric spark lasts for more than 200ms, judging that the arc discharge is serious.
Compared with the prior art, the invention has the beneficial effects that: the pantograph state monitoring system can comprehensively monitor the pantograph state, and can monitor the pantograph-catenary following performance, contact pressure, thickness of the sliding plate and a pull-out value; the monitoring data can be analyzed and processed in real time, the health state of the pantograph is evaluated, relevant fault state information is output to a driver and an alarm is given, and meanwhile, a vehicle control center can be transmitted wirelessly; the fault evaluation early warning state information can be output to a vehicle control center, the fault development trend is predicted, and related maintenance and repair guidance suggestions are output, so that further development of faults is avoided, and the reliability and the usability of the pantograph are improved.
Drawings
FIG. 1 is a block diagram of a detection system according to the present invention.
Detailed Description
The high-definition video recording system is provided with a pantograph net high-definition video recording module, a contact net dynamic measurement module, a pantograph net arc detection module, a health management host module and a data transmission module; wherein bow net high definition video recording module includes spark sensor, high definition digtal camera etc. and contact net dynamic measurement module includes carbon slide thermometer, carbon slide strainometer, slide triaxial accelerometer etc.. The pantograph and contact net matching contact state is collected through the spark sensor and the high-definition camera, whether pantograph and catenary following is normal or not is judged, and collected signal electric spark signals and pantograph and catenary following images are transmitted to the health management host module. The contact pressure of a pantograph slide plate and the temperature rise of the slide plate are detected through a carbon slide plate thermometer and a carbon slide plate strain gauge in a contact net dynamic measurement module, a slide plate three-axis accelerometer detects the state of the pantograph on an X \ Y \ Z axis, the contact pressure and the temperature of the pantograph slide plate are judged, whether the current collection is normal or not is judged, and the acquired temperature signal and the contact pressure of the carbon slide plate are transmitted to a health management host module; the health management host receives and collects pantograph sliding plate temperature, arc spark, pantograph triaxial acceleration, video recording, judges whether the current state of pantograph is normal, whether the slide thickness reaches the limit, whether the contact net is normal, and passes through data transfer module with above-mentioned information and convey the diagnosis aassessment pantograph health management state to vehicle control center.
The pantograph health management system comprises: slide thickness detection sensors 1 and 2, bow net follow camera, contact pressure sensors 1 and 2, X-axis accelerometer, Y-axis accelerometer, Z-axis accelerometer, driver display HMI, wireless module, vehicle control center.
Slide plate thickness detection sensors 1 and 2: detecting the thickness of the carbon pantograph slide plate;
the bow net follows the camera: monitoring the current collection following state of a pantograph head and a contact network;
contact pressure sensors 1 and 2: detecting the contact pressure of the carbon sliding plate and a contact net;
x-axis accelerometer: detecting acceleration in the X-axis direction;
y-axis accelerometer: detecting acceleration in the Y-axis direction;
a Z-axis accelerometer: detecting the acceleration in the Z-axis direction;
the health management host computer: receiving a slide plate thickness signal, a pressure signal, a pantograph-catenary follow-up camera image and an accelerometer signal, processing and analyzing related signals, diagnosing, evaluating and outputting the health state of a pantograph to a driver HMI and a vehicle control center fault information and related fault processing and preventive measures;
a wireless module: receiving fault evaluation information of the health management host and sending the fault evaluation information to a driver HMI display;
driver display screen: displaying fault information and alarm prompt of the pantograph;
the vehicle control center: and receiving fault information and alarm prompt of the pantograph.
The thickness of the sliding plate is collected by the thickness sensors on the two different sliding plates, the thickness of the sliding plate is sent to the health management host, the collected value is compared with an initial pre-alarm value set by the health management host, if the collected value is smaller than the initial pre-alarm value by 1mm, the health management host outputs a pre-alarm signal, the pre-alarm signal of the sliding plate is sent to a driver HMI (human machine interface) to remind the driver, meanwhile, the pre-alarm signal is sent to a vehicle control center through a wireless transmitting module, and carbon sliding plate thickness detection and verification are carried out when the vehicle returns to a warehouse. If the thickness of the sliding plate is 5mm lower than the minimum thickness value allowed by operation, simultaneously detecting the contact pressure at the moment when the pantograph is combined, and if the contact pressure is detected to be lower than the allowed normal contact pressure by 100N; meanwhile, the high-definition camera image is sent into the health management host to compare and analyze arc sparks, whether the sparks in the pantograph-catenary following state are normal or not is judged, if the severity level of arc discharge is evaluated through the health management host, alarm information that the pantograph slide plate is worn to the limit is output to a driver HMI and a vehicle control center, the driver is reminded of paying attention to the pantograph state at any time, the vehicle reaches a terminal, and the vehicle should exit from the main-line service operation.
Detecting through an X/Y/Z axis direction accelerometer, measuring and calculating the contact pressure detected by a pantograph slide plate, when the contact pressure value of the carbon slide plate calculated by a health management host is within a normal range (100 ~ 140N), judging that the contact pressure is normal and not outputting any fault alarm by the health management host, if the contact pressure is detected to be larger than 140N or smaller than 100N, recording the positioning information of the electronic tag at the moment by the health management host, simultaneously recording the pantograph-catenary following image at the moment, analyzing whether the pull-out value and the lifting amount of the catenary are normal at the moment, if the contact pressure value and the lifting amount are abnormal, outputting the lifting amount of the catenary to be evaluated to be over standard by the health management host, outputting warning information that the contact pressure of the pantograph is abnormal to a driver and a vehicle control center by the health management host, and outputting a pressure value to a vehicle warehouse to further detect the pantograph contact pressure value.
Gather bow net through high definition camera and follow the image, and send into in the health management host computer, through electric arc image contrasts the analysis, judge whether bow net follows the performance normal, if abnormal, through the positional information of electronic positioning label record simultaneously, give vehicle control center with the warning information that bow net follows not well (if (electric current electric spark lasts and exceeds 200 ms), if when drawing the arc serious, the pantograph contact pressure, the value of drawing, the lifting volume is all normal, then the output contact is overhauld and is maintained the strategy suggestion.
The invention can solve the problem of single evaluation of a certain performance index of the pantograph in the past. The pantograph current-receiving state condition, the contact pressure, the thickness of the sliding plate, the pantograph-catenary following condition and the pantograph pull-out value can be comprehensively and comprehensively detected, pantograph-catenary following condition images and pantograph parameters can be comprehensively analyzed and evaluated, fault diagnosis information can be timely transmitted to a driver and an alarm can be given out, a fault coping strategy can be output, meanwhile, the fault diagnosis information can be wirelessly and remotely transmitted to a vehicle control center, vehicle control can timely master the vehicle fault state, the fault coping coordination with the driver is realized, fault treatment is realized, the fault influence is minimized to the maximum extent, meanwhile, early warning can be carried out on the fault, the fault of the pantograph is intervened in advance, the risk of fault occurrence is reduced, and the reliability and the usability of the pantograph are improved.
Claims (9)
1. A pantograph health management state detection method is characterized by mainly comprising the following implementation processes: collecting the thickness value of the sliding plate, comparing the thickness value of the sliding plate with a set initial pre-alarm value, and outputting a pre-alarm signal if the difference between the thickness value of the sliding plate and the initial pre-alarm value is less than a threshold value T; if the thickness of the sliding plate is lower than the lowest thickness value allowed by operation, the contact pressure detected by the pantograph sliding plate is detected in combination with the contact pressure detection of the pantograph at the moment, and when the contact pressure detected by the sliding plate is within a normal range, the contact pressure is judged to be normal; if the contact pressure value detected by the sliding plate is not in the normal range, analyzing whether the pull-out value and the lifting amount of the contact net are normal or not, and if not, outputting alarm information; and if the contact pull-out value and the lifting amount are normal, outputting early warning information of abnormal contact pressure of the pantograph.
2. The pantograph health management state detection method according to claim 1, wherein after the alarm information is output, the catenary lifting amount exceeding the standard is also evaluated, and meanwhile, the alarm information that the catenary needs to be further overhauled is output to a vehicle control center.
3. The pantograph health management state detection method of claim 1, wherein the warning information of pantograph contact pressure abnormality is sent to a driver HMI and a vehicle control center, and the vehicle is output to a vehicle warehouse for further detection of the pantograph contact pressure value.
4. The method of claim 1, wherein the further detecting of the pantograph contact pressure value comprises: collecting a pantograph-catenary following image, comparing the pantograph-catenary following image with an electric arc image, judging whether the pantograph-catenary following performance is normal or not, if not, transmitting alarm information of poor pantograph-catenary following to a vehicle control center through position information recorded by an electronic positioning tag, and if the pantograph is seriously pulled and the contact pressure, the pull-out value and the lifting amount of the pantograph are normal, outputting a contact maintenance instruction; and when the current electric spark lasts for more than 200ms, judging that the arc discharge is serious.
5. The pantograph health management state detection method of claim 1, wherein a thickness sensor is provided on the sled to acquire a sled thickness value.
6. The pantograph health management state detection method of claim 1, wherein the threshold T =1 mm.
7. The pantograph health management state detection method of claim 1, wherein the minimum thickness value is 5 mm.
8. A pantograph health management state detection system, comprising:
the acquisition module is used for acquiring the thickness value of the sliding plate;
the comparison module is used for comparing the thickness value of the sliding plate with a set initial pre-alarm value;
a processing module for performing the following operations: if the difference between the thickness value of the sliding plate and the initial pre-alarm value is smaller than a threshold value T, outputting a pre-alarm signal; if the difference between the thickness value of the sliding plate and the initial pre-alarm value is smaller than a threshold value T, outputting a pre-alarm signal; if the thickness of the sliding plate is lower than the lowest thickness value allowed by operation, the contact pressure detected by the pantograph sliding plate is detected in combination with the contact pressure detection of the pantograph at the moment, and when the contact pressure detected by the sliding plate is within a normal range, the contact pressure is judged to be normal; if the contact pressure value detected by the sliding plate is not in the normal range, analyzing whether the pull-out value and the lifting amount of the contact net are normal or not, and if not, outputting alarm information; and if the contact pull-out value and the lifting amount are normal, outputting early warning information of abnormal contact pressure of the pantograph.
9. The pantograph health management state detection system of claim 8, wherein further detecting a pantograph contact pressure value comprises: collecting a pantograph-catenary following image, comparing the pantograph-catenary following image with an electric arc image, judging whether the pantograph-catenary following performance is normal or not, if not, transmitting alarm information of poor pantograph-catenary following to a vehicle control center through position information recorded by an electronic positioning tag, and if the pantograph is seriously pulled and the contact pressure, the pull-out value and the lifting amount of the pantograph are normal, outputting a contact maintenance instruction; and when the current electric spark lasts for more than 200ms, judging that the arc discharge is serious.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257649A (en) * | 2020-03-09 | 2020-06-09 | 西南交通大学 | Comprehensive detection system and method based on arc acousto-optic voltage |
| CN111652395A (en) * | 2020-06-12 | 2020-09-11 | 成都国铁电气设备有限公司 | Health assessment method for high-speed railway contact network equipment |
| CN113091815A (en) * | 2021-04-02 | 2021-07-09 | 北京中车赛德铁道电气科技有限公司 | Pantograph running state monitoring control system |
| CN114964389A (en) * | 2022-08-03 | 2022-08-30 | 成都凯磁科技有限公司 | System and method for evaluating running state of pantograph slide plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GEP20115297B (en) * | 2007-03-29 | 2011-10-10 | Sakartvelos Teknikuri Univer Sitetis Nagebobebis Sp Sistemebisa Da Sainzhinro Uzrunvelkopis Inst | Opening bridge and bridge layer |
| CN102507601A (en) * | 2011-11-08 | 2012-06-20 | 南京大学 | Online abrasion detection method and system for pantograph of electric locomotive |
| CN104881970A (en) * | 2015-06-15 | 2015-09-02 | 北京京城新能源有限公司 | Grading alarm device of obstruction sensor for gear case, and alarm method |
| US20180208222A1 (en) * | 2017-01-23 | 2018-07-26 | Broadsens Corp. | Train Pantograph Structural Health Monitoring System |
| CN108872796A (en) * | 2018-07-31 | 2018-11-23 | 广州科易光电技术有限公司 | Ground control platform based on vehicle-mounted contact net condition monitoring |
| CN109115265A (en) * | 2018-06-29 | 2019-01-01 | 苏州大成电子科技有限公司 | A kind of contact net working state monitoring system and method |
-
2019
- 2019-10-22 CN CN201911003861.4A patent/CN110672158A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GEP20115297B (en) * | 2007-03-29 | 2011-10-10 | Sakartvelos Teknikuri Univer Sitetis Nagebobebis Sp Sistemebisa Da Sainzhinro Uzrunvelkopis Inst | Opening bridge and bridge layer |
| CN102507601A (en) * | 2011-11-08 | 2012-06-20 | 南京大学 | Online abrasion detection method and system for pantograph of electric locomotive |
| CN104881970A (en) * | 2015-06-15 | 2015-09-02 | 北京京城新能源有限公司 | Grading alarm device of obstruction sensor for gear case, and alarm method |
| US20180208222A1 (en) * | 2017-01-23 | 2018-07-26 | Broadsens Corp. | Train Pantograph Structural Health Monitoring System |
| CN109115265A (en) * | 2018-06-29 | 2019-01-01 | 苏州大成电子科技有限公司 | A kind of contact net working state monitoring system and method |
| CN108872796A (en) * | 2018-07-31 | 2018-11-23 | 广州科易光电技术有限公司 | Ground control platform based on vehicle-mounted contact net condition monitoring |
Non-Patent Citations (2)
| Title |
|---|
| 朱足州: "《冶金铁路运输》", 30 November 2005, 四川出版集团四川科学技术出版社 * |
| 高速铁路接触网知识读本编委会: "《高速铁路接触网知识读本》", 31 July 2012 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257649A (en) * | 2020-03-09 | 2020-06-09 | 西南交通大学 | Comprehensive detection system and method based on arc acousto-optic voltage |
| CN111257649B (en) * | 2020-03-09 | 2021-01-26 | 西南交通大学 | Comprehensive detection system and method based on arc acousto-optic voltage |
| CN111652395A (en) * | 2020-06-12 | 2020-09-11 | 成都国铁电气设备有限公司 | Health assessment method for high-speed railway contact network equipment |
| CN113091815A (en) * | 2021-04-02 | 2021-07-09 | 北京中车赛德铁道电气科技有限公司 | Pantograph running state monitoring control system |
| CN114964389A (en) * | 2022-08-03 | 2022-08-30 | 成都凯磁科技有限公司 | System and method for evaluating running state of pantograph slide plate |
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