CN211401691U - Different-sound rail bottom acoustic diagnosis device for driving mechanism of running part of motor train unit - Google Patents
Different-sound rail bottom acoustic diagnosis device for driving mechanism of running part of motor train unit Download PDFInfo
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- CN211401691U CN211401691U CN201921275353.7U CN201921275353U CN211401691U CN 211401691 U CN211401691 U CN 211401691U CN 201921275353 U CN201921275353 U CN 201921275353U CN 211401691 U CN211401691 U CN 211401691U
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Abstract
The utility model discloses a different sound rail bottom acoustic diagnosis device of a driving mechanism of a running gear of a motor train unit, which comprises rail side equipment and equipment in a rail side machine room; the rail side equipment comprises an acoustic array acquisition device, a car number image acquisition device, a radio frequency car number acquisition device, a starting device and a car speed measurement device; the equipment in the machine room comprises acoustic analysis equipment, an image car number identification device and a radio frequency car number analysis processing device. The rail side equipment is connected with the machine room equipment through a cable and a router to realize data transmission; the whole system is started by the starting device, information such as the vehicle number, the wheel speed and the sound of the driving mechanism of the running part is obtained by the rail-side equipment in combination with the image vehicle number recognition device and the radio frequency vehicle number analysis processing device and is sent to the acoustic analysis equipment for unified scheduling, so that the fault recognition and alarm of the driving mechanism of the running part are realized, the works such as axle counting, vehicle speed measurement, vehicle number recognition, data uploading, self-checking, remote maintenance and the like are carried out on the train, and the dynamic monitoring of the driving mechanism of the running part is completed.
Description
Technical Field
The utility model belongs to the technical field of rail vehicle fault detection, concretely relates to EMUs walk abnormal sound rail end acoustics diagnostic device of running gear actuating mechanism.
Background
The running gear of the motor train unit is a part for guiding vehicles to run along a track at the lower part of the motor train unit and transmitting the whole weight of the motor train unit to a steel rail, and comprises wheel pairs, axle box bearings, a traction motor, a gear box, a spring damping device and the like, wherein the traction motor and the gear box are called as running gear driving mechanisms. The driving mechanism of the train running part is a key component of the motor train unit capable of running at high speed and safely, and the quality of the driving mechanism directly influences the running safety. Various trains in China have the characteristics of high running density, long running mileage and complex running environment, wherein the types of the traction motor and the gear box are various, and the service life discreteness is high. The dynamic monitoring of the running state of the running gear driving mechanism of the train motor train unit has important significance, and is an important means for ensuring the running safety of the train.
The domestic detection on the running state of the motor train unit driving mechanism is mainly realized by a regular maintenance mode. The traction motor, the gear box and the like are required to be detached from the bogie during regular maintenance, and the maintenance cycle is long and the cost is high. The current large number of regular and after-market repairs cannot meet the high-intensity, fast-paced modern operating requirements. With the overall acceleration of trains and the popularization of motor train units, the online detection of the faults of the driving mechanism of the motor train unit becomes an urgent detection means, and the state maintenance replaces the regular maintenance, which becomes the inevitable trend of the development of the railway equipment maintenance system. The acoustic diagnosis system for the motor train unit driving mechanism adopts an acoustic diagnosis technology and a radio frequency train number tracking technology, performs tracking detection on the running state of the motor train unit driving mechanism, and performs trend analysis and alarm.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a different sound rail end acoustics diagnostic system of EMUs running gear actuating mechanism belongs to train running gear mechanical failure diagnostic system, adopt rail end acoustics detection technique and car number identification technique to the running gear actuating mechanism acoustics signal in service to gather the analysis, gather and discern the train car number, the realization is to the dynamic monitoring and the tracking warning of running gear actuating mechanism mechanical failure (including the shaft coupling, the gear box, trouble such as motor), the real-time supervision of the key mechanical component mechanical failure of EMUs vehicle running gear actuating mechanism, on-line tracking and location problem have effectively been solved.
The utility model discloses EMUs walk abnormal sound rail end acoustics diagnostic system of running gear actuating mechanism, including acoustics array collection system, car number image acquisition device, radio frequency car number collection system, starting device, speed of a motor vehicle measuring device, be the rail limit equipment. The system also comprises acoustic analysis equipment, an image car number identification device and a radio frequency car number analysis processing device which are all arranged in a cabinet in the rail side machine room.
The starting device is connected with the acoustic analysis equipment through a cable; the acoustic analysis equipment is connected with the acoustic array acquisition device through a cable; the acoustic analysis equipment is connected with the image car number identification device through a network router; the image car number recognition device is connected with the car number image acquisition device through a cable; the acoustic analysis equipment is connected with the radio frequency vehicle number analysis processing device through a serial port; the radio frequency car number analyzing and processing device is connected with the radio frequency car number collecting device through a cable. Forming wheel signals when the train passes through the starting device, sending the wheel signals to the acoustic analysis equipment to generate working signals, and activating the acoustic analysis equipment; the acoustic analysis equipment is connected with the acoustic array acquisition device through a cable, and the acoustic analysis equipment wakes up the acoustic acquisition system at the same time when the acoustic analysis equipment is activated. After the activated acoustic analysis equipment sends the working signal to the image car number recognition device, activating the image car number recognition device; and when the image car number identification device is activated, the image car number identification device wakes up the car number image acquisition device. The activated acoustic analysis equipment transmits the working signal to a radio frequency car number analysis processing device, and the radio frequency car number analysis processing device is activated; and when the radio frequency car number analyzing and processing device is activated, the radio frequency car number analyzing and processing device wakes up the radio frequency car number acquisition device. And the acoustic diagnosis system for the different-sound rail bottom of the whole driving mechanism of the running part of the motor train unit is converted into a detection state from a waiting train receiving state.
The vehicle speed measuring device is connected with the acoustic analysis equipment through a cable; the radio frequency car number analysis processing device is connected with the acoustic analysis equipment through a cable. The acoustic analysis equipment analyzes the wheel information acquired by the vehicle speed measuring device and the vehicle number information acquired by the radio frequency vehicle number acquisition device or the vehicle number information of the image vehicle number identification device to obtain vehicle speed data and axle vehicle data of the axle counting vehicles, forms vehicle wheel set information of the whole train, analyzes the acoustic signals of the running gear driving mechanism according to the vehicle wheel set information of the whole train, judges the position of the vehicle running gear driving mechanism, finishes the selection and recombination of the acoustic signals acquired by the acoustic array acquisition device, and enables the acoustic signals to be in one-to-one correspondence with the vehicle running gear driving mechanism related components.
And then analyzing and processing acoustic signals of the driving mechanism of the running gear, judging faults, processing the acoustic signals after the selection and recombination by combining the running speed, and finishing the judgment of the faults of the driving mechanism of the running gear of the train, including the faults of a coupling, a motor and a gear box. The system realizes the identification and alarm of fault components, the axle counting and vehicle counting of trains, the speed measurement, the vehicle number identification, the data uploading, the self-checking, the remote maintenance and other works, thereby completing the dynamic monitoring of the driving mechanism of the running part.
And finally, the acoustic analysis equipment encapsulates and stores the train passing data of the passing train, completes the automatic online detection of the running train running part driving mechanism and restores the system to the state to be detected.
The utility model has the advantages that:
(1) the utility model discloses railway vehicle walks capable actuating mechanism different sound acoustics diagnostic device, through arranging to gather the capable actuating mechanism acoustic signal of walking of train in the microphone array at the bottom of the rail, can follow tracks of the monitoring to walking the capable actuating mechanism of walking of all kinds of motorcycle types of freight train, passenger train, EMUs.
(2) The utility model discloses railway vehicle walks capable actuating mechanism abnormal sound acoustics diagnostic device of actuating mechanism combines image car number recognition technology and walks capable actuating mechanism acoustics diagnostic technique, can carry out the tracking monitoring to the walking capable actuating mechanism of all kinds of motorcycle types of freight train, passenger train, EMUs.
Drawings
FIG. 1 is the overall layout and connection mode schematic diagram of the abnormal sound rail bottom acoustic diagnosis system of the driving mechanism of the running gear of the motor train unit.
In the figure:
1-starting device 2-vehicle speed measuring device 3-radio frequency vehicle number collecting device
4-acoustic array acquisition device 5-car number image acquisition device 6-radio frequency car number analysis processing device
7-acoustic analysis equipment 8-image car number recognition device
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses different sound rail bottom acoustic diagnosis system of driving mechanism of running gear of motor train unit, as shown in figure 1, comprises an acoustic diagnosis system, a radio frequency car number recognition system and an image car number recognition system; the acoustic diagnosis system comprises a starting device 1, a vehicle speed measuring device 2, an acoustic array acquisition device 4 and acoustic analysis equipment 7; the radio frequency vehicle number identification system comprises a radio frequency vehicle number acquisition device 3 and a radio frequency vehicle number analysis processing device 6. The image car number recognition system comprises a car number image acquisition device and an image car number recognition device 88.
The acoustic array acquisition device 4, the car number image acquisition device 5, the radio frequency car number acquisition device 3, the starting device 1 and the vehicle speed measurement device 2 are rail-side equipment. The acoustic analysis equipment 7, the image car number recognition device 8 and the radio frequency car number analysis processing device 6 are used as machine room equipment and are all installed in a cabinet in a rail side machine room.
The starting device 1 preferably selects a proximity switch sensor, is fixed on the inner side of one rail through a clamp and is positioned at a position which is 50-120 meters away from the acoustic array acquisition device 4 in the coming direction; preferably 50 meters. The starting-up device 1 is connected with the acoustic analysis equipment 7 through a cable; when the train passes through the starting device 1, a wheel signal is formed and is sent to the acoustic analysis equipment 7 through a cable to generate a working signal, and the acoustic analysis equipment 7 is activated; the acoustic analysis device 7 is connected to the acoustic array collection apparatus 4 by a cable, and the acoustic analysis device 7 wakes up the acoustic collection system at the same time as the acoustic analysis device 7 is activated. The activated acoustic analysis equipment 7 is connected with the image car number recognition device 8 through a network router, and activates the image car number recognition device 8 after the working signal is sent to the image car number recognition device 8; the image car number recognition device 8 is connected with the car number image acquisition device 5 through a cable, and the car number image acquisition device 5 is awakened by the image car number recognition device 8 when the image car number recognition device 8 is activated. The activated acoustic analysis equipment 7 is connected with the radio frequency car number analysis processing device 6 through a serial port, transmits a working signal to the radio frequency car number analysis processing device 6 in a serial port mode, and activates the radio frequency car number analysis processing device 6; the radio frequency car number analyzing and processing device 6 is connected with the radio frequency car number collecting device 3 through a cable; and when the radio frequency car number analyzing and processing device 6 is activated, the radio frequency car number analyzing and processing device 6 wakes up the radio frequency car number acquisition device 3. And thus, the whole abnormal sound rail bottom acoustic diagnosis system of the driving mechanism of the running part of the motor train unit is converted into a detection state from a waiting train receiving state.
The vehicle speed measuring device 2 is preferably provided with TURCK magnetic heads of the type NI40U-CP40-VN4X2, the number of the TURCK magnetic heads is not less than 2, preferably 4, the TURCK magnetic heads are sequentially fixed on the inner side of a single-side rail through clamps, the distance between every two adjacent sleepers is the installation distance between every two adjacent vehicle speed measuring devices 2, and the front of the acoustic array collecting device 4. The vehicle speed measuring device 2 is connected to the acoustic analysis apparatus 7 through a cable. Measuring signals of train wheels through a vehicle speed measuring device 2; when the train wheels sequentially pass through each speed measuring device 2, wheel signals are generated and sent to the acoustic analysis equipment 7 through cables to form speed measuring wheel signals of the passing train.
The radio frequency car number collecting device 3 is preferably a T1 type distant valley radio frequency collecting device, is fixed between two adjacent sleepers in the rail through a clamp, is not higher than the plane of the rail, and is positioned at the position 2 meters away from the first vehicle speed measuring device 2 in the direction away from the vehicle. The radio frequency car number collecting device 3 is directed at a train provided with an AEI radio frequency tag, when the train passes through the radio frequency car number collecting device 3, the AEI radio frequency tag on the train triggers the radio frequency car number collecting device 3, the radio frequency car number collecting device 3 obtains train car number information codes carried by the AEI radio frequency tag, and meanwhile, the car number information codes are sent to the radio frequency car number analysis processing device 6 through a cable. The radio frequency car number analyzing and processing device 6 preferably selects a T1 type distant valley radio frequency car number analyzing and processing device, is connected with the acoustic analysis equipment 7 through a cable, and analyzes and processes the train car number information code sent by the radio frequency car number acquisition device 3 by the radio frequency car number analyzing and processing device 6 to obtain radio frequency car number information, and sends the radio frequency car number information to the acoustic analysis equipment 7.
The train number image acquisition device 5 adopts an image acquisition device based on a Dalsa2k camera as a core device, and aims at acquiring train numbers without AEI radio frequency tags. The car number image acquisition devices 5 and the acoustic array acquisition devices 4 are arranged in the same row and are positioned at the outer side of the track and 0.5 meter away from the edge of the track; by adjusting the elevation angle of the train number image acquisition device 5, the linear array camera in the train number image acquisition device 5 is aligned to the train number image range. When a train passes through the train number image acquisition device 5, the train number image acquisition device 5 acquires image information of the side face of a train body through the line-scan camera and transmits the image information to the image train number recognition device 8 through a cable; the image car number recognition device 8 adopts an embedded image compression processing recognition device, can realize the rapid and accurate positioning and segmentation of a car number area by adopting image processing technologies such as morphological image processing, connected domain analysis, threshold segmentation and the like, calls a character recognition engine after carrying out preprocessing operation on a car number image through the image car number recognition device 8, recognizes preliminary car number information, then automatically corrects a recognition result according to a car number rule to obtain a final recognition result, and sends the final recognition result to the acoustic analysis equipment 7 through a network router.
The acoustic array acquisition device 4 adopts a Log MEMS microphone array based on the model of SPA8643LR5H, is fixed in the middle between the rails on the two sides, and the upper edge is lower than the plane of the sleeper. When the train passes through the detection range of the acoustic array acquisition device 4, the microphone array in the acoustic array acquisition device 4 acquires acoustic signals of the train running gear driving mechanism and converts the acoustic signals into electrical signals, and the microphone array in the acoustic array acquisition device 4 acquires sound signals in the train unit running gear driving mechanism and sends the sound signals to the acoustic analysis equipment 7 through a cable.
The acoustic analysis equipment 7 adopts 3 groups of NI digital acquisition cards with the model number of PCI6123 and is based on the acoustic analysis equipment of a beam forming software analysis method. The acoustic analysis equipment 7 is dispatched in a unified mode, firstly, wheel information acquired by the vehicle speed measuring device 2 and vehicle number information acquired by the radio frequency vehicle number acquisition device 3 or vehicle number information of the image vehicle number identification device 8 are utilized to analyze and obtain vehicle speed data and axle vehicle data of the axle counting vehicles, vehicle wheel set information of the whole train is formed, acoustic signals of a driving mechanism of the travelling part are analyzed according to the vehicle wheel set information of the whole train, the position of the driving mechanism of the vehicle travelling part is judged, selection and recombination of the acoustic signals acquired by the acoustic array acquisition device 4 are completed, and the acoustic signals are enabled to correspond to related parts of the driving mechanism of the vehicle travelling part one by one.
And then analyzing and processing acoustic signals of the driving mechanism of the running gear, judging faults, processing the acoustic signals after the selection and recombination by combining the running speed, and finishing the judgment of the faults of the driving mechanism of the running gear of the train, including the faults of a coupling, a motor and a gear box. The system realizes the identification and alarm of fault components, the axle counting and vehicle counting of trains, the speed measurement, the vehicle number identification, the data uploading, the self-checking, the remote maintenance and other works, thereby completing the dynamic monitoring of the driving mechanism of the running part.
And finally, the acoustic analysis equipment 7 encapsulates and stores the train passing data of the passing train, completes the automatic online detection of the running train running part driving mechanism and restores the system to the state to be detected.
Claims (3)
1. The utility model provides a EMUs running gear actuating mechanism abnormal sound rail end acoustic diagnostic device which characterized in that: the system comprises an acoustic array acquisition device, a car number image acquisition device, a radio frequency car number acquisition device, a starting device and a car speed measurement device which are all rail-side equipment; the system also comprises acoustic analysis equipment, an image car number identification device and a radio frequency car number analysis processing device which are all arranged in a cabinet in the rail side machine room;
the starting device is connected with the acoustic analysis equipment through a cable; the acoustic analysis equipment is connected with the acoustic array acquisition device through a cable; the acoustic analysis equipment is connected with the image car number identification device through a network router; the image car number recognition device is connected with the car number image acquisition device through a cable; the acoustic analysis equipment is connected with the radio frequency vehicle number analysis processing device through a serial port; the radio frequency vehicle number analyzing and processing device is connected with the radio frequency vehicle number collecting device through a cable;
the vehicle speed measuring device is connected with the acoustic analysis equipment through a cable; the radio frequency car number analysis processing device is connected with the acoustic analysis equipment through a cable.
2. The acoustic diagnosis device for the different-tone rail bottom of the running gear driving mechanism of the motor train unit according to claim 1, characterized in that: the acoustic array acquisition device is fixed between the rails on the two sides in the middle, the upper edge of the acoustic array acquisition device is lower than the plane of the sleeper, and the acoustic array acquisition device is used for monitoring the environment at the bottom of the train and realizing dynamic monitoring and tracking alarm on mechanical faults of a driving mechanism of the travelling part; the starting device is fixed on the inner side of one rail through a clamp and is located at a position which is 50-120 meters away from the acoustic array acquisition device in the coming direction; the vehicle speed measuring device is fixed on the inner side of the unilateral rail through a fixture and is positioned between the acoustic array acquisition device and the starting device; the radio frequency car number acquisition device is fixed between two adjacent sleepers in the rail through a clamp, is not higher than the plane of the rail, and is positioned at a position 2 meters away from the first vehicle speed measurement device in the direction away from the vehicle; the image car number acquisition equipment and the acoustic array acquisition device are arranged in the same row and are positioned on the outer side of the track and 0.5 meter away from the edge of the track.
3. The acoustic diagnosis device for the different-tone rail bottom of the running gear driving mechanism of the motor train unit according to claim 2, characterized in that: the number of the vehicle speed measuring devices is 4, the vehicle speed measuring devices are arranged at equal intervals along the rail, and the intervals are the intervals between adjacent sleepers.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208585A (en) * | 2020-09-30 | 2021-01-12 | 深圳市平方科技股份有限公司 | Train information detection system and method thereof |
| CN112781864A (en) * | 2020-12-25 | 2021-05-11 | 哈尔滨铁路科研所科技有限公司 | Fault diagnosis method, device and system for bottom transmission system of bullet train |
| CN113447270A (en) * | 2021-07-23 | 2021-09-28 | 上海工程技术大学 | Railway vehicle traction motor bearing acoustic monitoring system and method |
| CN113567125A (en) * | 2021-07-21 | 2021-10-29 | 上海工程技术大学 | Portable roadside acoustic detection system and method for axle box bearing of railway vehicle |
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2019
- 2019-08-07 CN CN201921275353.7U patent/CN211401691U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208585A (en) * | 2020-09-30 | 2021-01-12 | 深圳市平方科技股份有限公司 | Train information detection system and method thereof |
| CN112781864A (en) * | 2020-12-25 | 2021-05-11 | 哈尔滨铁路科研所科技有限公司 | Fault diagnosis method, device and system for bottom transmission system of bullet train |
| CN113567125A (en) * | 2021-07-21 | 2021-10-29 | 上海工程技术大学 | Portable roadside acoustic detection system and method for axle box bearing of railway vehicle |
| CN113567125B (en) * | 2021-07-21 | 2023-08-29 | 上海工程技术大学 | Portable roadside acoustic detection system and method for axle box bearing of railway vehicle |
| CN113447270A (en) * | 2021-07-23 | 2021-09-28 | 上海工程技术大学 | Railway vehicle traction motor bearing acoustic monitoring system and method |
| CN113447270B (en) * | 2021-07-23 | 2023-09-01 | 上海工程技术大学 | Acoustic monitoring system and method for traction motor bearing of railway vehicle |
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Address after: 9th floor, No. 61 Zhichun Road, Haidian District, Beijing, 100190 Patentee after: Beijing Aerospace Shenzhou Intelligent Equipment Technology Co.,Ltd. Patentee after: BEIJING AEROSPACE CTROWELL INFORMATION TECHNOLOGY CO.,LTD. Address before: 100080 No. 61, Haidian District, Beijing, Zhichun Road Patentee before: BEIJING CTROWELL INFRARED TECHNOLOGY Co.,Ltd. Patentee before: BEIJING AEROSPACE CTROWELL INFORMATION TECHNOLOGY CO.,LTD. |