CN101181901A - Hotbox distinguishing method for train infrared shaft-temperature detecting system - Google Patents
Hotbox distinguishing method for train infrared shaft-temperature detecting system Download PDFInfo
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- CN101181901A CN101181901A CNA2007101786064A CN200710178606A CN101181901A CN 101181901 A CN101181901 A CN 101181901A CN A2007101786064 A CNA2007101786064 A CN A2007101786064A CN 200710178606 A CN200710178606 A CN 200710178606A CN 101181901 A CN101181901 A CN 101181901A
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Abstract
The invention provides a hot shaft distinguishing method for a train infrared shaft temperature probing system. The hot shaft temperatures are abnormal values of the train shaft temperatures which are statistically distributed; therefore, the hot shaft has great distance away from the average value; the distance from the shaft temperature to the average shaft temperature can be taken as a criterion for the hot shaft distinguishing. All the shaft temperatures on the same side of the train are taken as a group of samples; by adopting the temperature increment and the revin temperature increment variance, the vehicle temperature increment variance or the temperature increment and the revin temperature increment variance and the vehicle temperature increment as the criterion of the hot shaft distinguishing; by taking all the shaft temperatures on the same side of the train as a group of samples, the physical meaning is definite, the calculation is simple and the distinguishing result is exact. The method can be adopted to the train infrared shaft temperature probing system which adopts a photon probe, or can be adopted to the train infrared shaft temperature probing system which adopts other train shaft temperature probing system.
Description
Technical field
The invention belongs to railway infrared equipment field, relate to a kind of hot box discrimination technology of train bearing fault distinguishing technology, particularly train axle temperature detection system.
Background technology
Train axle box temperature is too high to be the coindication that train axle breaks down.Train infrared journal temperature detection system can survey the axle box temperature of running train, differentiates whether et out of order of vehicle bearing according to axle temperature, avoid because of the rail vehicle bearing fault causes the train operation accident, and be one of important method that ensures train operating safety.Its infrared probe by installing in the rail both sides, the infrared radiation of each axletree axle box when the detection train passes through, calculating by detection system, provide the temperature of each axle box, judge whether to exist fault bearing (abbreviation hot box) in view of the above, and by communication network with the forecast hot box trouble notify at once to train dispatching system, prevent the generation of accident.
Train infrared journal temperature detection system begins utilization from the seventies in 20th century in China, adopts the infrared thermistor probe, is that the detection waveform of manually getting by pen is differentiated hot box at first.Begin to use unattended automation infrared journal temperature detection system the nineties in 20th century.System calculates the axle box temperature by every bearing of train according to probe output.System is according to the magnitude of voltage of each axle box output of probe detection and the magnitude of voltage of the ratio of full row homonymy average voltage level (being called the row ratio), each axle box output of probe detection and the ratio (being called a ratio) of complete homonymy average voltage level, and the difference (being called temperature rise) of axle temperature and ring temperature, whether there is the fault bearing according to certain discrimination standard and the automatic differentiation of algorithm.
From beginning in 1998, railway was implemented the raising speed by a large scale of 6 existing lines, and starts Heavy Haul Freight Train gradually.Accurately survey the requirement of axle temperature for adapting to the speed-raising back, since 2000, adopted the train infrared journal temperature detection system of photon probe to begin to drop into utilization.It is the infrared-sensitive device that the photon probe adopts mercury cadmium telluride, can adapt to the axle temperature detection requirement with the 360km/h running train.But the temperature difference of mercury cadmium telluride, its responsiveness alters a great deal, and the chopper wheel temperature of modulation type photon probe is also influential to probe output, so under the different rings temperature, the output voltage values difference of photon probe detection axle temperature is very big.The ratio that adopts the probe output voltage in the hot box forecast in the past is as criterion, and this is wherein implying a condition, promptly requires the responsiveness of probe to change little.If the responsiveness of probe changes greatly, the ratio of the output voltage of then popping one's head in changes also greatly, differentiates hot box according to this and can cause mal as a result.Therefore, photon probe infrared detection of hot axis system can not adopt the ratio of probe output voltage as criterion.
For adapting to the needs of railway transportation speed and heavy load, the railway truck bearing equipment is also being brought in constant renewal in, and load carrying ability improves constantly.At present, Yun Hang rolling stock bearing kind is numerous on the line, the load-carrying situation differs greatly, cause the axle temperature distribution limit of the operational vehicle under different bearings and the different load-carrying situations bigger, and normal operating temperature distributed area under different bearings and the different load-carrying situations and the interval overlaid of failure operation temperature traverse, therefore, can not normally judge if only judge hot box according to axle temperature, can cause the hot box wrong report more, also can have the problem of failing to report hot box.
Adopt the hot box method of discrimination according to the axle temperature data, do not adopt the probe output voltage values.Find that through data analysis as if the ratio that adopts each axle temperature with average temperature rising, then ratio is relevant with average temperature rising than a ratio for row.When average temperature rising hanged down, row were higher than a ratio; When average temperature rising was high, row were than than low.The row of Ji Suaning are more relevant with average temperature rising than a ratio like this, can not be as criterion.
Summary of the invention
The hot box method of discrimination that has proposed a kind of train infrared journal temperature detection system of the present invention.The hot box axle temperature is the exceptional value of a train axle temperature statistical distribution, so hot box is big from the distance of aviation value, the criterion that the distance of available this axle temperature and average axle temperature is differentiated as hot box.Adopt temperature rise and row temperature rise variance, a temperature rise variance or temperature rise and the row temperature rise is poor, a temperature rise difference is differentiated criterion as hot box, as one group of sample, explicit physical meaning is calculated simply with all axle temperatures of train homonymy, and the result is accurate in differentiation.
The hot box method of discrimination of a kind of train infrared journal temperature detection of the present invention system comprises the following steps:
Step 1: utilize detection of train axle temperature detection system and calculating axle temperature by train;
Step 2: calculate each axle temperature liter, promptly each axle temperature and ring temperature is poor;
Step 3: the calculated column temperature rise is poor, and promptly each axle temperature liter and this train homonymy average temperature rising is poor;
Step 4: a calculating temperature rise is poor, and promptly each axle temperature liter and this car homonymy average temperature rising is poor;
Step 5: calculate the hot box rank of temperature rise according to the hot box discrimination standard of temperature rise, be divided into low-grade fever, heat-flash, swash three grades of heat;
Step 6: according to the hot box rank of the hot box discrimination standard calculated column temperature rise difference of row temperature rise difference, be divided into low-grade fever, heat-flash, swash three grades of heat;
Step 7: calculate the hot box rank of a temperature rise difference according to the hot box discrimination standard of a temperature rise difference, be divided into low-grade fever, heat-flash, swash three grades of heat;
Step 8: step 5,6,7 hot box are differentiated the result ask on average, obtain final hot box rank, be divided into low-grade fever, heat-flash, swash hot three grades;
Step 9: judge and whole axle temperature grades of train all to be judged finish,, continue to handle if the axle preface then turns back to step 2 less than total number of axle; Otherwise the hot box differentiation finishes.
Judge the hot box grade in the described step 5,6,7 and 8, respectively with low-grade fever standard, heat-flash standard with swash hot standard determination size, less than the low-grade fever standard, then hot box is a normal condition as hot box with hot box; Greater than the low-grade fever standard and less than the heat-flash standard, then hot box is the low-grade fever state as hot box; As hot box greater than the heat-flash standard and less than sharp hot standard, then hot box is the heat-flash state; All the other situation hot boxs are for swashing hot state.
The advantage of the hot box method of discrimination of a kind of train infrared journal temperature detection of the present invention system is:
(1) the present invention adopts temperature rise and the row temperature rise is poor, a temperature rise difference is differentiated criterion as hot box, and as one group of sample, its data discrete can be described by variance with all axle temperatures of train homonymy.The hot box axle temperature is the exceptional value of a train axle temperature statistical distribution, so hot box is big from the distance of aviation value, the criterion that the distance of available this axle temperature and average axle temperature is differentiated as hot box.Explicit physical meaning is calculated simply, and it is accurate to differentiate the result.
(2) owing to the present invention is based on axle temperature discriminating data hot box, therefore the present invention not only can be used for adopting the train infrared journal temperature detection system of photon probe, this system also can be used for adopting the train axle temperature detection system of alternate manner detection, as long as can quantitative Analysis go out each axle temperature degree.
Description of drawings
Fig. 1 is the program flow diagram of the hot box method of discrimination of a kind of train infrared journal temperature detection of the present invention system;
Fig. 2 is the hot box method of discrimination step 5 of a kind of train infrared journal temperature detection of the present invention system, 6 or 7 processing flow chart.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
The hot box method of discrimination of a kind of train infrared journal temperature detection of the present invention system adopts temperature rise and row temperature rise variance, a temperature rise variance or temperature rise and the row temperature rise is poor, a temperature rise difference is differentiated criterion as hot box, and explicit physical meaning is calculated simply, and it is accurate to differentiate the result.
From statistical significance, as one group of sample, its data discrete can be described by variance with all axle temperatures of train homonymy, and variance is the sign of sample and its aviation value distance.The hot box axle temperature is the exceptional value of a train axle temperature statistical distribution, so hot box is big from the distance of aviation value, the criterion that the distance of available this axle temperature and average axle temperature is differentiated as hot box.Owing to the present invention is based on axle temperature discriminating data hot box, therefore the present invention not only can be used for adopting the train infrared journal temperature detection system of photon probe, this system also can be used for adopting the train axle temperature detection system of alternate manner detection, as long as can quantitative Analysis go out each axle temperature degree of train.
As shown in Figure 1, the hot box method of discrimination of a kind of train infrared journal temperature detection of this method system comprises following steps:
Step 1: utilize the train axle temperature detection system to survey and calculate axle temperature t (n) by train, 0≤n≤N wherein, N is total number of axle of this train;
Step 2: calculate each axle temperature and rise t1 (n), promptly each axle temperature and ring temperature is poor;
Step 3: calculated column temperature rise difference t2 (n), promptly each axle temperature liter and this train homonymy average temperature rising is poor;
Step 4: calculate a temperature rise difference t3 (n), promptly each axle temperature liter and this car homonymy average temperature rising is poor;
Step 5: the hot box discrimination standard according to temperature rise calculates temperature rise H
1(n) hot box rank is divided into low-grade fever, heat-flash, swashs three grades of heat;
Step 6: according to the hot box discrimination standard calculated column temperature rise difference H of row temperature rise difference
2(n) hot box rank is divided into low-grade fever, heat-flash, swashs three grades of heat;
Step 7: the hot box discrimination standard according to a temperature rise difference calculates a temperature rise difference H
3(n) hot box rank is divided into low-grade fever, heat-flash, swashs three grades of heat;
Step 8: step 5, six, seven hot box are differentiated the result ask on average, obtain final hot box rank
Be divided into low-grade fever, heat-flash, swash three grades of heat;
Step 9: judge and whole axle temperature grades of train all to be judged finish,, continue to handle if axle preface n then turns back to step 2 less than total number of axle N; Otherwise the hot box differentiation finishes.
As shown in Figure 2, when hot box is differentiated as a result in the described step 5, six, seven, hot box is differentiated the result respectively with low-grade fever standard, heat-flash standard with swash hot standard determination size, differentiate the result less than the low-grade fever standard as hot box, then hot box coefficient H is 0; Differentiate the result greater than the low-grade fever standard and less than the heat-flash standard as hot box, then the hot box coefficient
Differentiate the result greater than the heat-flash standard and less than sharp hot standard, then hot box coefficient as hot box
Differentiate the result greater than sharp hot standard and less than calculating upper limit as hot box, then the hot box coefficient
Differentiate the result greater than calculating upper limit as hot box, H=4 then, wherein Tw is the low-grade fever standard, and Tq is the heat-flash standard, and Tj is for swashing hot standard, the upper limit of Th for calculating, desirable Th=2Tj-Tq; T (n) is that a preface is the axle axle temperature differentiation result of n.
Judge the hot box grade in the described step 5, six, seven and eight, hot box coefficient H is judged size with the numerical value of low-grade fever standard, heat-flash standard and sharp hot standard definition respectively, less than 1, then hot box is a normal condition as hot box coefficient H; Greater than 1 and less than 2, then hot box is the low-grade fever state as hot box coefficient H; Greater than 2 and less than 3, then hot box is the heat-flash state as hot box coefficient H; All the other situation hot boxs are for swashing hot state.
Calculating the hot box rank according to the hot box discrimination standard in the described step 5, six, seven is meant according to low-grade fever, heat-flash, swashs hot hot box discrimination standard differentiation.
Claims (2)
1. the hot box method of discrimination of a train infrared journal temperature detection system is characterized in that, comprises following performing step:
Step 1: utilize detection of train axle temperature detection system and calculating axle temperature by train;
Step 2: calculate each axle temperature liter, promptly each axle temperature and ring temperature is poor;
Step 3: the calculated column temperature rise is poor, and promptly each axle temperature liter and this train homonymy average temperature rising is poor;
Step 4: a calculating temperature rise is poor, and promptly each axle temperature liter and this car homonymy average temperature rising is poor;
Step 5: calculate the hot box rank of temperature rise according to the hot box discrimination standard of temperature rise, be divided into low-grade fever, heat-flash, swash three grades of heat;
Step 6: according to the hot box rank of the hot box discrimination standard calculated column temperature rise difference of row temperature rise difference, be divided into low-grade fever, heat-flash, swash three grades of heat;
Step 7: calculate the hot box rank of a temperature rise difference according to the hot box discrimination standard of a temperature rise difference, be divided into low-grade fever, heat-flash, swash three grades of heat;
Step 8: step 5, six, seven hot box are differentiated the result ask on average, obtain final hot box rank, be divided into low-grade fever, heat-flash, swash hot three grades;
Step 9: judge and whole axle temperature grades of train all to be judged finish,, continue to handle if the axle preface then turns back to step 2 less than total number of axle; Otherwise the hot box differentiation finishes.
2. the hot box method of discrimination of a kind of train infrared journal temperature detection according to claim 1 system, it is characterized in that: judge the hot box grade in the described step 5, six, seven and eight, with hot box respectively with low-grade fever standard, heat-flash standard with swash hot standard determination size, less than the low-grade fever standard, then hot box is a normal condition as hot box; Greater than the low-grade fever standard and less than the heat-flash standard, then hot box is the low-grade fever state as hot box; As hot box greater than the heat-flash standard and less than sharp hot standard, then hot box is the heat-flash state; All the other situation hot boxs are for swashing hot state.
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| CN2007101786064A CN101181901B (en) | 2007-12-03 | 2007-12-03 | Hotbox distinguishing method for train infrared shaft-temperature detecting system |
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| CN2007101786064A CN101181901B (en) | 2007-12-03 | 2007-12-03 | Hotbox distinguishing method for train infrared shaft-temperature detecting system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350995A (en) * | 2011-07-15 | 2012-02-15 | 中国铁道科学研究院机车车辆研究所 | Hot-axle alarming method for railway freight train and system |
| CN102837711A (en) * | 2011-06-21 | 2012-12-26 | 中国铁道科学研究院机车车辆研究所 | Infrared waveform based intelligent identification method for railway bearing |
| CN104859680A (en) * | 2015-05-29 | 2015-08-26 | 铜陵有色金属集团股份有限公司 | Mine car under-maintenance auxiliary detection system |
| CN104932575A (en) * | 2015-06-05 | 2015-09-23 | 北京康拓红外技术股份有限公司 | Probe refrigeration temperature control device and temperature control method |
| CN105045983A (en) * | 2015-07-06 | 2015-11-11 | 西安理工大学 | Axle ageing analysis method of high speed train on the basis of axle temperature data |
| CN105292174A (en) * | 2015-11-04 | 2016-02-03 | 南京富岛信息工程有限公司 | Infrared hot box audio channel fault diagnosing method based on signal features |
| CN105656365A (en) * | 2015-12-23 | 2016-06-08 | 北京康拓红外技术股份有限公司 | Infrared axle temperature detection system modulation type probe infrared radiation modulation device and driving method |
| CN106080655A (en) * | 2016-08-24 | 2016-11-09 | 中车株洲电力机车研究所有限公司 | Detection method, device and the train that a kind of train axle temperature is abnormal |
| CN107576398A (en) * | 2017-08-02 | 2018-01-12 | 武汉钢铁有限公司 | 320t torpedo hot metal mixer car axle box temp measuring systems |
| CN108051092A (en) * | 2017-11-30 | 2018-05-18 | 广汉科峰电子有限责任公司 | The optical modulation and demodulating system of thermosensitive resistance type high speed shaft temperature detector |
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2007
- 2007-12-03 CN CN2007101786064A patent/CN101181901B/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837711A (en) * | 2011-06-21 | 2012-12-26 | 中国铁道科学研究院机车车辆研究所 | Infrared waveform based intelligent identification method for railway bearing |
| CN102837711B (en) * | 2011-06-21 | 2015-04-08 | 中国铁道科学研究院机车车辆研究所 | Infrared waveform based intelligent identification method for railway bearing |
| CN102350995A (en) * | 2011-07-15 | 2012-02-15 | 中国铁道科学研究院机车车辆研究所 | Hot-axle alarming method for railway freight train and system |
| CN102350995B (en) * | 2011-07-15 | 2013-08-28 | 中国铁道科学研究院机车车辆研究所 | Hot-axle alarming method for railway freight train and system |
| CN104859680A (en) * | 2015-05-29 | 2015-08-26 | 铜陵有色金属集团股份有限公司 | Mine car under-maintenance auxiliary detection system |
| CN104932575A (en) * | 2015-06-05 | 2015-09-23 | 北京康拓红外技术股份有限公司 | Probe refrigeration temperature control device and temperature control method |
| CN105045983A (en) * | 2015-07-06 | 2015-11-11 | 西安理工大学 | Axle ageing analysis method of high speed train on the basis of axle temperature data |
| CN105045983B (en) * | 2015-07-06 | 2018-02-02 | 西安理工大学 | A kind of bullet train axletree aging analysis method based on axle temperature data |
| CN105292174A (en) * | 2015-11-04 | 2016-02-03 | 南京富岛信息工程有限公司 | Infrared hot box audio channel fault diagnosing method based on signal features |
| CN105656365A (en) * | 2015-12-23 | 2016-06-08 | 北京康拓红外技术股份有限公司 | Infrared axle temperature detection system modulation type probe infrared radiation modulation device and driving method |
| CN106080655A (en) * | 2016-08-24 | 2016-11-09 | 中车株洲电力机车研究所有限公司 | Detection method, device and the train that a kind of train axle temperature is abnormal |
| CN106080655B (en) * | 2016-08-24 | 2018-05-04 | 中车株洲电力机车研究所有限公司 | A kind of detection method, device and the train of train axle temperature exception |
| CN107576398A (en) * | 2017-08-02 | 2018-01-12 | 武汉钢铁有限公司 | 320t torpedo hot metal mixer car axle box temp measuring systems |
| CN108051092A (en) * | 2017-11-30 | 2018-05-18 | 广汉科峰电子有限责任公司 | The optical modulation and demodulating system of thermosensitive resistance type high speed shaft temperature detector |
| CN108051092B (en) * | 2017-11-30 | 2020-03-31 | 广汉科峰电子有限责任公司 | Optical modulation and demodulation system of thermistor type high-speed shaft temperature detector |
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