CN210000336U - Following type subway train axle box temperature detection system - Google Patents
Following type subway train axle box temperature detection system Download PDFInfo
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- CN210000336U CN210000336U CN201920601845.4U CN201920601845U CN210000336U CN 210000336 U CN210000336 U CN 210000336U CN 201920601845 U CN201920601845 U CN 201920601845U CN 210000336 U CN210000336 U CN 210000336U
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Abstract
The utility model provides an following subway train axle box temperature detecting system detects the temperature of axle box through setting up main control unit, the speed sensor that is used for detecting train advancing speed and the follow-up image device that sets gradually along train advancing direction, just following subway train axle box temperature detecting system installs on train operation circuit, following subway train axle box temperature detecting system can detect train axle box temperature automatically when the train passes through, has liberated the manpower, has improved work efficiency.
Description
Technical Field
The utility model belongs to the technical field of rail vehicle, especially, relate to following formula subway train axle box temperature-detecting system.
Background
The method is characterized in that a temperature test paper is adhered to the axle box part of the train, series of grids or round points are distributed on the temperature test paper to represent different temperatures, when the temperature of a test point is higher than that of the test point, the color of the grid or round point is changed into irreversible black or other colors, and the highest temperature experienced by an object can be judged according to the color of the grid.
The temperature test paper method needs to manually paste the temperature test paper on the axle box, and after the train finishes running each time, test paper colors are observed manually, because the number of the axle boxes of the train is large, the method causes great labor intensity of detection personnel and low efficiency, in addition, the method can only detect the temperature of the area pasted with the temperature test paper, and the detection range is small.
In view of this, it is necessary to provide following type subway train axle box temperature detection systems, which can automatically detect the axle box temperature of a running train.
SUMMERY OF THE UTILITY MODEL
The utility model is directed to the above-mentioned technical problem, provide kinds of following formula subway train axle box temperature detection system that can carry out automated inspection to the axle box temperature of the train in service.
In order to achieve the above object, the utility model discloses a technical scheme be:
following type subway train axle box temperature detection systems for detecting the axle box temperature of a bogie, comprising a main controller, a speed measuring device and a following imaging device, wherein the speed measuring device and the following imaging device are sequentially arranged along the train advancing direction, and the main controller is respectively electrically connected with the speed measuring device and the following imaging device;
the four follow-up imaging devices are arranged on two sides of the double-track in pairs and are symmetrically arranged along the double-track, wherein the distance between the two follow-up imaging devices arranged on the same side along the direction of the double-track 4 is equal to the distance between two wheel axles of the bogie, and the intersection points of the four follow-up imaging devices making vertical lines to the double-track 4 are respectively an intersection point A, an intersection point B, an intersection point C and an intersection point D;
the logic operation module is used for receiving speed information sent by the speed measuring device, calculating the traveling speed of a train, the time for axle boxes located on the same bogie to reach the intersection point A, the intersection point B, the intersection point C and the intersection point D and the angular speed for the driving piece to drive the infrared camera to rotate when the axle boxes reach the intersection point A, the intersection point B, the intersection point C and the intersection point D according to the speed information, and sending the calculation result to the execution module;
and the execution module is used for controlling the driving piece to drive the angular speed of the infrared cameras to rotate according to the calculation result, and controlling the four infrared cameras to respectively shoot the axle boxes of the same bogie according to the time of the axle boxes of the same bogie reaching the intersection point A, the intersection point B, the intersection point C and the intersection point D.
Preferably, the follow-up imaging device further comprises a rotating shaft and a mounting seat assembly which are perpendicular to the ground, and the rotating shaft is rotatably connected with the mounting seat assembly; the driving piece drives the infrared camera to rotate through the rotating shaft; the outer side of the rotating shaft is sleeved with a conductive slip ring, the conductive slip ring comprises a rotor and a stator, the rotor is rotationally connected with the stator, the rotor is fixedly connected with the rotating shaft, and the stator is fixedly connected with the mounting base assembly; the rotor is electrically connected with the infrared camera, and the stator is electrically connected with the main controller.
Preferably, the speed measuring device comprises th magnetic steels, second magnetic steels and a magnetic steel mounting seat, the th magnetic steels and the second magnetic steels are electrically connected with the main controller, the th magnetic steels and the second magnetic steels are mounted on the magnetic steel mounting seat, the magnetic steel mounting seat is mounted on tracks of the double-track tracks and is arranged on the same side of wheel rims advancing on the tracks, and the th magnetic steels and the second magnetic steels are sequentially arranged along the advancing direction of the train.
Preferably, the following type subway train axle box temperature detection system further comprises a counter, and the counter is electrically connected with the second magnetic steel of the speed measuring device and the logic operation module of the main controller;
the counter is used for counting the triggering times of the second magnetic steel;
and the logic operation module is used for calculating the advancing speed of the train, the time for the axle boxes positioned on the same bogie to reach the intersection point A, the intersection point B, the intersection point C and the intersection point D and the angular speed for the driving piece to drive the infrared camera to rotate when the axle boxes reach the intersection point A, the intersection point B, the intersection point C and the intersection point D according to the speed information when the numerical value output by the counter is an even number, and sending the calculation result to the execution module.
Preferably, the driving member is a servo motor.
Preferably, the following components: the mounting seat assembly comprises a base, a rotating shaft support and a conductive sliding ring positioning frame, wherein the base, the rotating shaft support and the conductive sliding ring positioning frame are sequentially connected, through holes are formed in the base, the rotating shaft support and the conductive sliding ring positioning frame, and the rotating shaft is rotatably connected with the through holes in the base, the rotating shaft support and the conductive sliding ring positioning frame; the driving piece is installed on the base, and the stator is fixedly connected with the conductive slip ring positioning frame.
Preferably, the magnetic steel mounting base comprises a magnetic steel mounting plate, a magnetic steel support and a pressing block assembly, the magnetic steel mounting plate is mounted on the magnetic steel support, and the magnetic steel support is fixed on the double-track through the pressing block assembly.
Preferably, the pressing block assembly comprises an th pressing block and a second pressing block, the th pressing block is fixedly connected with the second pressing block, and the th pressing block and the second pressing block are fixedly connected with the bottom of the double-rail track.
Preferably, an insulating plate is disposed between the th pressing block and the two-rail and between the second pressing block and the two-rail.
The utility model has the advantages that:
1. the utility model discloses a following formula subway train axle box temperature-detecting system detects the temperature of axle box through setting up main control unit, the speed sensor that is used for detecting train advancing speed and the follow-up image device that set gradually along the train advancing direction, just following formula subway train axle box temperature-detecting system installs on train operation line, can detect train axle box temperature automatically when the train passes through, has liberated the manpower, has improved work efficiency;
2. the following type subway train axle box temperature detection system of the utility model carries out infrared shooting when the detected axle box of the train and the infrared camera are relatively static, can effectively avoid the smear phenomenon of an infrared thermal image, and has more accurate reaction result;
3. following formula subway train axle box temperature-detecting system, through setting up four follow-up image device can detect the axle box temperature that is located on same bogies simultaneously, improves work efficiency.
4. Following formula subway train axle box temperature-detecting system can detect the whole section temperature condition of being surveyed the axle box, and measuring range is great.
Drawings
FIG. 1 is a schematic structural diagram of the following type temperature detection system for the axle box of the subway train of the present invention;
FIG. 2 is a schematic structural view of the servo imaging device of the present invention
Fig. 3 is a schematic structural view of the speed measuring device of the present invention;
fig. 4 is showing an installation diagram of the velocity measuring device according to the present invention;
fig. 5 is a second schematic view illustrating the installation of the speed measuring device according to the present invention;
fig. 6 is the utility model discloses a following subway train axle box temperature detecting system's partial structure schematic diagram.
The device comprises a main controller 1, a logic operation module 11, an execution module 12, a follow-up imaging device 2, an infrared camera 21, a rotating shaft 22, a driving piece 23, a mounting seat assembly 24, a base 241, a base 242, a rotating shaft support 243, a conductive slip ring positioning frame 25, a conductive slip ring 26, a flange bearing , a flange bearing 27, a speed measuring device 3, a magnetic steel , a magnetic steel 32, a magnetic steel mounting seat 33, a magnetic steel mounting seat 331, a magnetic steel mounting plate 332, a magnetic steel support 333, a pressure block assembly 3331, a pressure block , a pressure block 3332, a second pressure block 3333, an insulating plate 4, a double-track rail, a train 5, a train 51, a wheel rim, a double-track rail 52, an axle box 6 and a counter.
Detailed Description
The present invention is now described in detail with reference to the exemplary embodiments thereof, however, it should be understood that the elements, structures and features of the embodiments may be beneficially incorporated in other embodiments without further recitation of .
In the description of the present invention, it should be noted that the terms "inner", "outer", "upper", "lower", "front", "rear", and the like are used for the positional relationship shown in the drawings, and are only for convenience of description and simplified description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention.
As shown in fig. 1, an following type subway train axle box temperature detection system for detecting the temperature of an axle box 52 of a bogie comprises a main controller 1, a speed measuring device 3 and a following imaging device 2, wherein the speed measuring device 3 and the following imaging device 2 are sequentially arranged along the advancing direction of a train 5 and are used for detecting the advancing speed of the train 5, and the main controller 1 is electrically connected with the speed measuring device 3 and the following imaging device 2 respectively;
the follow-up imaging devices 2 are four in number, the four follow-up imaging devices 2 are arranged on two sides of the double-track 4 in pairs and are symmetrically arranged along the double-track 4, wherein the distance between the two follow-up imaging devices 2 arranged on the same side along the direction of the double-track 4 is equal to the distance between two wheel axles of the bogie, the intersection points of the four follow-up imaging devices 2 perpendicular to the double-track 4 are respectively an intersection point A, an intersection point B, an intersection point C and an intersection point D, the follow-up imaging devices 2 comprise infrared cameras 21 and driving pieces 23 used for driving the infrared cameras 21 to rotate in the vertical direction, and preferably, the driving pieces 23 are servo motors.
As shown in fig. 6, the main controller 1 includes a logic operation module 11 and an execution module 12, the logic operation module 11 and the execution module 12 are electrically connected, the logic operation module 11 is configured to receive speed information sent by the speed measuring device 3, calculate a traveling speed of the train 5 according to the speed information, time for the axle boxes 52 located on the same bogie to reach the intersection point a, the intersection point B, the intersection point C, and the intersection point D, and an angular velocity for the driving member 23 to drive the infrared camera 21 to rotate when the axle boxes reach the intersection point a, the intersection point B, the intersection point C, and the intersection point D, and send a calculation result to the execution module 12;
the execution module 12 is configured to control the angular velocity at which the driving element 23 drives the infrared cameras 21 to rotate according to the calculation result, and control the four infrared cameras 21 to respectively shoot the axle boxes 52 of the same bogie according to the time when the axle boxes 52 of the same bogie reach the intersection point a, the intersection point B, the intersection point C, and the intersection point D.
As shown in fig. 2, the follow-up imaging device 2 further includes a rotating shaft 22 and a mounting seat assembly 24, the rotating shaft 22 is perpendicular to the ground, and the mounting seat assembly 24 is rotatably connected to the rotating shaft 22; the driving part 23 drives the infrared camera 21 to rotate through the rotating shaft 22; a conductive slip ring 25 is sleeved on the outer side of the rotating shaft 22, the conductive slip ring 25 comprises a rotor and a stator, the rotor is rotationally connected with the stator, the rotor is fixedly connected with the rotating shaft 22, and the stator is fixedly connected with the mounting seat assembly 24; wherein, the rotor is electrically connected with the infrared camera 21, and the stator is electrically connected with the execution unit of the main controller 1.
, the mounting base assembly 24 includes a base 241, a rotating shaft support 242, and a conductive slip ring positioning frame 243, the base 241, the rotating shaft support 242, and the conductive slip ring positioning frame 243 are sequentially connected, through holes are disposed on the base 241, the rotating shaft support 242, and the conductive slip ring positioning frame 243, the rotating shaft 22 is rotatably connected to the through holes on the base 241, the rotating shaft support 242, and the conductive slip ring positioning frame 243, the driving member 23 is mounted on the base 241, and the stator is fixedly connected to the conductive slip ring positioning frame 243, preferably, the servo imaging device 2 is further provided with a flange bearing 26 and a second flange bearing 27, the flange bearing 26 is mounted between the through hole of the base 241 and the rotating shaft 22, and the second flange bearing 27 is mounted between the through hole of the rotating shaft support 242 and the rotating shaft 22 to avoid rigid contact between the rotating shaft 22 and the mounting base assembly 24, and the base 241 is further provided with a motor support, and the servo motor is mounted on the base 241 through the motor support.
As shown in fig. 3 to 5, the speed measuring device 3 includes a th magnetic steel 31, a second magnetic steel 32, and a magnetic steel mounting base 33, the th magnetic steel 31 and the second magnetic steel 32 are electrically connected to the main controller 1, the th magnetic steel 31 and the second magnetic steel 32 are mounted on the magnetic steel mounting base 33, the magnetic steel mounting base 33 is mounted on rail of the dual rail track 4 and is located at the same side as a wheel rim 51 traveling on the rail, wherein the th magnetic steel 31 and the second magnetic steel 32 are sequentially disposed along a traveling direction of the train 5, preferably, the magnetic steel mounting base 33 includes a magnetic steel mounting plate 331, a magnetic steel bracket 332, and a press block assembly 333, the press block assembly 333 includes a th press block 3331 and a second press block 3332, the 3331 of the second press block 3331 is fixedly connected to the second press block 3332, the magnetic steel mounting plate 331 is mounted on the magnetic steel bracket 332, the magnetic steel bracket 332 is fixed to the dual rail track and is fixed to the second press block 3332, the 335631 is connected to the insulating plate 3332 of the dual rail track, and the press block 335631 is disposed between the insulating plate 3332 and the press block 335631.
With continued reference to fig. 6, the following type subway train axle box temperature detecting system further includes a counter 6, and the counter 6 is electrically connected to the second magnetic steel 32 of the speed measuring device 3 and the logic operation module 11 of the main controller 1;
the counter 6 is used for counting the triggering times of the second magnetic steel 32;
the logic operation module 11 is configured to calculate, when the value output by the counter 6 is an even number, the traveling speed of the train 5, the time when the axle box 52 located on the same bogie reaches the intersection a, the intersection B, the intersection C, and the intersection D, and the angular velocity at which the driving unit 23 drives the infrared camera 21 to rotate when the axle box 52 reaches the intersection a, the intersection B, the intersection C, and the intersection D, according to the speed information, and send the calculation result to the execution module 12.
method for detecting temperature of follower type subway train 5 axle box 52, which adopts the above-mentioned follower type subway train axle box temperature detection system, the method includes the following steps:
step S1: the speed measuring device 3 detects speed information of the train 5 and sends the speed information to the logic operation module 11 of the main controller 1;
step S2, the logic operation module 11 receives the speed information sent by the speed measuring device 3, calculates the traveling speed of the train 5, the time for the axle boxes 52 located on the same bogie to reach the intersection point A, the intersection point B, the intersection point C and the intersection point D, and the angular speed for the driving part 23 to drive the infrared camera 21 to rotate when the intersection point A, the intersection point B, the intersection point C and the intersection point D are reached according to the speed information, and sends the calculation result to the execution module 12;
and step S3, the execution module 12 controls the driving member 23 to drive the infrared cameras 21 to rotate according to the calculation result, and controls the four infrared cameras 21 to respectively shoot the axle boxes 52 of the same bogie according to the time when the axle boxes 52 of the same bogie reach the intersection point A, the intersection point B, the intersection point C and the intersection point D.
, the specific process of step S2 is:
step S21: the counter 6 counts the triggering times of the second magnetic steel 32;
and step S22, when the value output by the counter 6 is even, the logic operation module 11 calculates the traveling speed of the train 5, the time for the axle boxes 52 located on the same bogie to reach the intersection points A, B, C and D, and the angular speed for the driving part 23 to drive the infrared camera 21 to rotate when the intersection points A, B, C and D are reached, according to the speed information, and sends the calculation result to the execution module 12.
step, the running speed V of the train 5 in the step S22Line ofThe specific calculation method comprises the following steps:
Vline of＝L/t；
In the above formula, L is the distance between the th magnetic steel 31 and the second magnetic steel 32, and t is the time interval when the rim 51 of the wheel of the train 5 passes through the th magnetic steel 31 and the second magnetic steel 32.
, the time t for the axle boxes 52 of the bogie to reach the intersection a, the intersection B, the intersection C, and the intersection D from the speed measuring device 3 in the step S22 is1The specific calculation method comprises the following steps:
t1＝L1/Vline of＝L1·t/L；
In the above formula, L1The distance between the intersection point B and the intersection point C and the second magnetic steel 32 of the speed measuring device 3 along the direction of the double-track 4 is smaller than the distance between the intersection point a and the intersection point D and the second magnetic steel 32 along the direction of the double-track 4;
when the axle boxes 52 of the same bogie reach the intersection point a, the intersection point B, the intersection point C and the intersection point D in the step S22, the angular velocity ω at which the driving member 23 rotates the infrared camera 21 should be:
ω＝L/(t·L0)；
in the above formula, L0The distances from the four servo imaging devices 2 to the intersection point a, the intersection point B, the intersection point C, and the intersection point D.
, the angular velocity adjusting process in step S3 is:
the servo motor drives the infrared camera 21 to rotate at an angular acceleration a (t) of , and the time t is elapsed1The back angle speed is omega, and just completes the rotation of N- (theta/2 pi) circle; wherein the angular acceleration a (t) satisfies the following formula:
t0＝t1-2π·(N-(θ/2π)-n)/ω；
in the above formula, ω0And theta is the angular velocity of the infrared camera 21 and the included angle between the lens of the infrared camera 21 and the vertical line of the double-track 4 when the axle box 52 of the same bogie passes through the speed measuring device 3, namely the numerical value output by the counter 6 is even, N is an integer, wherein N is less than N- (theta/2 pi).
The specific detection process is as follows:
when the train 5 passes through the speed measuring device 3 and the second wheel rim 51 on the two wheel axles of the same bogie sequentially triggers the magnetic steel 31 and the second magnetic steel 32 in the traveling process, the main controller 1 calculates the traveling speed of the train 5, the time for the axle boxes 52 of the same bogie to reach the intersection point a, the intersection point B, the intersection point C and the intersection point D from the speed measuring device 3, and the angular speed for the driving piece 23 to drive the infrared camera 21 to rotate when the axle boxes 52 reach the intersection point a, the intersection point B, the intersection point C and the intersection point D from the speed measuring device 3 according to the distance between the magnetic steel 31 and the second magnetic steel 32 and the triggering time interval;
after the train 5 passes through the speed measuring device 3, the main controller 1 controls the servo motors of the four follow-up imaging devices 2 to drive the infrared camera 21 to rotate according to the calculation result, so that when the axle boxes 52 of the same bogie reach the intersection point a, the intersection point B, the intersection point C and the intersection point D, the lens of the infrared camera 21 just faces the intersection point a, the intersection point B, the intersection point C and the intersection point D, and the linear speeds of the focal lengths of the four infrared cameras 21 at the intersection point a, the intersection point B, the intersection point C and the intersection point D are the same as the traveling speed of the train 5, that is, the two are relatively static, at this time, the main controller 1 controls the four follow-up imaging devices 2 to shoot the axle boxes 52 of the same bogie, the infrared camera 21 can obtain an infrared thermal image of the axle boxes 52 by shooting, the thermal image corresponds to a thermal distribution field on the surfaces of the axle boxes 52, different colors on the thermal image can represent different temperatures of the axle boxes 52.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
- The following type subway train axle box temperature detection systems are used for detecting the axle box temperature of a bogie and are characterized by comprising a main controller, a speed measuring device and a following imaging device, wherein the speed measuring device and the following imaging device are sequentially arranged along the advancing direction of a train and are used for detecting the advancing speed of the train;the four follow-up imaging devices are arranged on two sides of the double-track in pairs and are symmetrically arranged along the double-track, wherein the distance between the two follow-up imaging devices arranged on the same side along the direction of the double-track (4) is equal to the distance between two wheel axles of the bogie, and the intersection points of the four follow-up imaging devices making perpendicular lines to the double-track (4) are respectively an intersection point A, an intersection point B, an intersection point C and an intersection point D;the logic operation module is used for receiving speed information sent by the speed measuring device, calculating the traveling speed of a train, the time for axle boxes located on the same bogie to reach the intersection point A, the intersection point B, the intersection point C and the intersection point D and the angular speed for the driving piece to drive the infrared camera to rotate when the axle boxes reach the intersection point A, the intersection point B, the intersection point C and the intersection point D according to the speed information, and sending the calculation result to the execution module;and the execution module is used for controlling the driving piece to drive the angular speed of the infrared cameras to rotate according to the calculation result, and controlling the four infrared cameras to respectively shoot the axle boxes of the same bogie according to the time of the axle boxes of the same bogie reaching the intersection point A, the intersection point B, the intersection point C and the intersection point D.
- 2. The system for detecting the axle box temperature of the following subway train according to claim 1, wherein: the follow-up imaging device also comprises a rotating shaft and a mounting seat assembly which are arranged perpendicular to the ground, and the rotating shaft is rotatably connected with the mounting seat assembly; the driving piece drives the infrared camera to rotate through the rotating shaft; the outer side of the rotating shaft is sleeved with a conductive slip ring, the conductive slip ring comprises a rotor and a stator, the rotor is rotationally connected with the stator, the rotor is fixedly connected with the rotating shaft, and the stator is fixedly connected with the mounting base assembly; the rotor is electrically connected with the infrared camera, and the stator is electrically connected with the main controller.
- 3. The temperature detection system of the axle box of the following subway train as claimed in claim 1, wherein said speed measurement device comprises th magnetic steel, a second magnetic steel and a magnetic steel mounting seat, said th magnetic steel and said second magnetic steel are electrically connected with said main controller, said th magnetic steel and said second magnetic steel are mounted on said magnetic steel mounting seat, said magnetic steel mounting seat is mounted on of said double-track rail and is located at the same side of the wheel rim moving on the rail, wherein said th magnetic steel and said second magnetic steel are sequentially arranged along the moving direction of the train.
- 4. The system for detecting the axle box temperature of the following subway train according to claim 3, wherein: the following type subway train axle box temperature detection system also comprises a counter, wherein the counter is electrically connected with the second magnetic steel of the speed measuring device and the logic operation module of the main controller;the counter is used for counting the triggering times of the second magnetic steel;and the logic operation module is used for calculating the advancing speed of the train, the time for the axle boxes positioned on the same bogie to reach the intersection point A, the intersection point B, the intersection point C and the intersection point D and the angular speed for the driving piece to drive the infrared camera to rotate when the axle boxes reach the intersection point A, the intersection point B, the intersection point C and the intersection point D according to the speed information when the numerical value output by the counter is an even number, and sending the calculation result to the execution module.
- 5. The system for detecting the axle box temperature of the following subway train according to claim 1, wherein: the driving piece is a servo motor.
- 6. The system for detecting the axle box temperature of the following subway train according to claim 2, wherein: the mounting seat assembly comprises a base, a rotating shaft support and a conductive sliding ring positioning frame, wherein the base, the rotating shaft support and the conductive sliding ring positioning frame are sequentially connected, through holes are formed in the base, the rotating shaft support and the conductive sliding ring positioning frame, and the rotating shaft is rotatably connected with the through holes in the base, the rotating shaft support and the conductive sliding ring positioning frame; the driving piece is installed on the base, and the stator is fixedly connected with the conductive slip ring positioning frame.
- 7. The system for detecting the axle box temperature of the following subway train according to claim 3, wherein:the magnetic steel mounting base comprises a magnetic steel mounting plate, a magnetic steel support and a pressing block assembly, the magnetic steel mounting plate is mounted on the magnetic steel support, and the magnetic steel support is fixed on the double-track through the pressing block assembly.
- 8. The system for detecting the axle box temperature of the following subway train is characterized in that the pressing block assembly comprises an th pressing block and a second pressing block, the th pressing block is fixedly connected with the second pressing block, and the th pressing block and the second pressing block are fixedly connected with the bottom of the double-rail track.
- 9. The system for detecting the axle box temperature of the following subway train is characterized in that an insulating plate is arranged between the th pressing block and the double-rail track, and the second pressing block and the double-rail track.
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| CN201920601845.4U CN210000336U (en) | 2019-04-28 | 2019-04-28 | Following type subway train axle box temperature detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001709A (en) * | 2019-04-28 | 2019-07-12 | 中车青岛四方车辆研究所有限公司 | Trailing type subway train axle box system for detecting temperature and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001709A (en) * | 2019-04-28 | 2019-07-12 | 中车青岛四方车辆研究所有限公司 | Trailing type subway train axle box system for detecting temperature and method |
| CN110001709B (en) * | 2019-04-28 | 2023-08-25 | 中车青岛四方车辆研究所有限公司 | Following type subway train axle box temperature detection system and method |
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