CN110803192A - Train-mounted PHM equipment and high-speed rail train - Google Patents
Train-mounted PHM equipment and high-speed rail train Download PDFInfo
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Abstract
The invention discloses train-mounted PHM equipment, which utilizes an information acquisition device to acquire equipment operation data of a train traction motor, compares the equipment operation data with PHM standard data (including equipment operation data under the whole life cycle) stored in a train PHM diagnosis device, determines the operation condition of the train traction motor, and predicts whether faults occur in the next period of time according to the operation condition. The invention also discloses a high-speed rail train provided with the train-mounted PHM equipment, and the high-speed rail train has the beneficial effects.
Description
Technical Field
The invention relates to the field of train safety equipment, in particular to train-mounted PHM equipment and a high-speed rail train.
Background
The technology of fault Prediction and Health Management (PHM) is developed and matured under the vigorous push of the national aerospace agency, and the PHM in the field of aviation is developed more maturely and enters a practical stage. The PHM technology is a completely new solution for managing health status that is provided by comprehensively utilizing the latest research results of modern information technology and artificial intelligence technology, and has the capability of analyzing the possibility of system failure and taking appropriate maintenance measures in a future period of time, and also has the capabilities of fault detection and isolation, fault diagnosis, fault prediction, health management, component life tracking and the like.
Similar to the aviation field, the rail transit field has larger passenger capacity, wider coverage area and lower cost, but the PHM technology in the rail transit industry is still in a starting stage, and only stays in a stage of detecting whether a fault occurs by adding some sensors on a high-speed rail train, compared with a mode of finding the fault which has occurred, finding an impending fault and processing the fault before the occurrence obviously has higher safety, the most important parts on the train are a power traction system and a braking system, and the problem occurring in which part may cause serious consequences, so that the PHM technology needs to be expanded to the rail transit field.
Therefore, it is an urgent need to solve the problem of how to extend the PHM technology to the field of rail transportation and provide a PHM vehicle-mounted device suitable for a high-speed rail vehicle.
Disclosure of Invention
The invention aims to provide train-mounted PHM equipment which is applied to a high-speed rail train, utilizes an information acquisition device to acquire equipment operation data of a train traction motor, and comparing and analyzing the standard PHM data (including running data under the whole life cycle of equipment) stored in the PHM diagnostic device of the train to determine the running condition of the traction motor of the train, so as to predict whether a fault occurs in the next period of time according to the running condition, the invention expands the PHM technology to the field of rail transit, which is different from the traditional method of finding the fault occurring on the train by using a sensor, the train-mounted PHM equipment provided by the invention can find out the impending fault and process the impending fault before the impending fault occurs under the analysis and comparison of the actual operation data of the equipment and the PHM standard data, so that the safety of the high-speed rail train can be further improved.
Another object of the present invention is to provide a high-speed rail train including the train-mounted PHM apparatus in a traction system.
In order to achieve the above object, the present invention provides a train-mounted PHM apparatus, comprising:
the signal acquisition device is connected with a sensor arranged on a train traction motor and used for acquiring equipment operation data fed back by the sensor;
the train PHM diagnosis device is connected with the signal acquisition device through a connector and is used for diagnosing the current running state of the train traction motor according to the equipment running data and pre-stored PHM standard data;
and the power supply module is connected with the sensor, the signal acquisition device and the train PHM diagnosis device and is used for respectively providing voltages required by normal work for the sensor, the signal acquisition device and the train PHM diagnosis device.
Optionally, the signal acquisition device includes:
the signal conditioning circuit is connected with the sensor and used for carrying out preprocessing and anti-aliasing filtering processing on the received equipment operation data to obtain processed data;
the input end of the analog-to-digital converter is connected with the output end of the signal conditioning circuit, and the output end of the analog-to-digital converter is connected with the input end of the FPGA information acquisition board card and used for converting the processed data which are analog quantity into digital quantity;
and the output end of the FPGA data acquisition acceleration board card is connected with the input end of the train PHM diagnosis device and is used for synchronously acquiring and processing data by utilizing the heterogeneous acceleration function of the FPGA in a multi-channel manner.
Optionally, the signal acquisition device further includes:
and the equipment operation data recording module is connected with the FPGA data acquisition acceleration board card and is used for recording and storing the equipment operation data of the digital quantity.
Optionally, the train PHM diagnostic apparatus includes:
the data storage module is used for storing the PHM standard data and a preset PHM diagnostic algorithm;
and the FPGA data diagnosis acceleration board card is connected with the data storage module and the FPGA data acquisition acceleration board card and is used for simultaneously carrying out data diagnosis operation between the train operation data and the PHM standard data in a multi-channel mode by utilizing the heterogeneous acceleration function of the FPGA.
Optionally, the data storage module is specifically a disk storage array.
Optionally, the number of the acquisition channels of the signal acquisition device is the same as the number of the types of the sensors.
Optionally, the train-mounted PHM device further includes:
and one end of the data transmission interface is connected with the output end of the train PHM diagnosis device, and the other end of the data transmission interface is connected with a train information display system through a train bus, and is used for transmitting a train traction motor diagnosis result obtained after diagnosis is carried out according to the equipment operation data and the standard PHM data to the train information display system.
Optionally, the train-mounted PHM device further includes:
and the diagnosis result judging device is connected with the train PHM diagnosis device and used for determining the current fault level of the train traction motor according to the received train traction motor diagnosis result and generating a fault early warning signal when the current fault level exceeds a preset level.
Optionally, the size of the chassis of the train-mounted PHM device is specifically 3U.
In order to achieve the above object, the present invention further provides a high-speed rail train, which includes a traction system and a braking system, wherein the traction system includes a preset number of train traction motors, and the traction system further includes a train-mounted PHM apparatus as described above.
Obviously, the train-mounted PHM equipment provided by the invention is applied to a high-speed rail train, and utilizes the information acquisition device to acquire the equipment operation data of a train traction motor, and comparing and analyzing the standard PHM data (including running data under the whole life cycle of equipment) stored in the PHM diagnostic device of the train to determine the running condition of the traction motor of the train, so as to predict whether a fault occurs in the next period of time according to the running condition, the invention expands the PHM technology to the field of rail transit, which is different from the traditional method of finding the fault occurring on the train by using a sensor, the train-mounted PHM equipment provided by the invention can find out the impending fault and process the impending fault before the impending fault occurs under the analysis and comparison of the actual operation data of the equipment and the PHM standard data, so that the safety of the high-speed rail train can be further improved. The invention also provides a high-speed rail train provided with the train-mounted PHM device, which has the beneficial effects and is not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a train-mounted PHM device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signal acquisition device 20 in a train-mounted PHM device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a train PHM diagnostic device 30 in the train-mounted PHM apparatus according to the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another train-mounted PHM device according to an embodiment of the present invention;
fig. 5 is a schematic connection diagram of another train-mounted PHM device used in an embodiment of the present invention.
Detailed Description
The core of the invention is to provide train-mounted PHM equipment and a high-speed rail train, wherein an information acquisition device is used for acquiring equipment operation data of a train traction motor, and the equipment operation data is compared and analyzed with PHM standard data (including equipment operation data under the full life cycle) stored in a train PHM diagnosis device to determine the operation condition of the train traction motor, so that whether faults occur in the next period of time can be predicted according to the operation condition.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
With reference to fig. 1 to 3, fig. 1 is a schematic structural diagram of a train-mounted PHM device provided in an embodiment of the present invention, where the train-mounted PHM device includes:
the signal acquisition device 20 is connected with the sensor 11 arranged on the train traction motor 10 and is used for acquiring the equipment operation data fed back by the sensor 11;
in order to comprehensively measure the equipment operation data of the train traction motor, various sensors including an acceleration sensor, a voltage sensor, a current sensor, a speed sensor and a temperature sensor can be arranged, and the equipment operation data of the train traction motor can be flexibly collected by selecting various sensors of different types according to different actual models of the train traction motor. In order to receive data collected by various sensors, the data acquisition can be realized by arranging a plurality of signal acquisition channels on a plurality of sub-signal acquisition board cards or one large signal acquisition board card.
Furthermore, the original equipment operation data acquired by the sensor may have a problem of unobvious features, so that preprocessing including signal processing, anti-aliasing processing, amplification, reduction and the like can be performed on the original equipment operation data, so that the preprocessed equipment operation data can better reflect features and fault points, and meanwhile, the occupation ratio of unnecessary partial signals is reduced. Furthermore, because the number of train traction motors required for realizing power traction of a marshalling high-speed rail train is not small, and each traction motor is also provided with a sensor of different types, in order to synchronize and quickly process the equipment operation data of each traction motor in the same time period, an FPGA heterogeneous acceleration function can be introduced, namely, a hardware acceleration function brought by an FPGA special structure is utilized to realize bus clock synchronization and message synchronization, so as to realize the collection and processing of the collected equipment operation data by multiple channels at the same time.
One implementation, including but not limited to, may be seen in the signal acquisition device shown in fig. 2:
the signal conditioning circuit 21 is connected with the sensor 11 and is used for preprocessing the received equipment operation data and performing anti-aliasing filtering processing on the received equipment operation data to obtain processed data;
an analog-to-digital converter 22, an input end of which is connected with an output end of the signal conditioning circuit 21, and an output end of which is connected with an input end of the FPGA information acquisition board 23, for converting the processed data which is analog quantity into digital quantity;
the output end of the FPGA data acquisition acceleration board card 23 is connected with the input end of the train PHM diagnosis device 30 and is used for carrying out data acquisition and processing synchronously by utilizing the heterogeneous acceleration function of the FPGA in a multi-channel manner;
and the equipment operation data recording module 24 is connected with the FPGA data acquisition acceleration board 23 and is used for recording and storing the equipment operation data as digital quantity.
It should be noted that the device operation data recording module 24 is used for recording and storing the device operation data stored in the form of digital quantity for later retroactive use.
The train PHM diagnosis device 30 is connected with the signal acquisition device 20 through a connector and is used for diagnosing the current running state of the train traction motor 10 according to the equipment running data and the pre-stored PHM standard data;
the PHM standard data is stored with equipment operation data under the whole life cycle of the train traction motor 10 and characteristic data when various types of equipment appear, the data can be obtained based on an aging test or placed in a life tester to simulate the situation of real working conditions as much as possible, the data is complete and comprises the running data of each stage, such as the sign before each fault appears, the running data of each actual state, the running data of each stage, such as light, moderate, severe and complete abandonment, and the PHM standard data is finally obtained based on the characteristic summary of the running data of each stage, so that the PHM standard data can be compared with the actually collected equipment running data under the support of a certain algorithm, the current running condition of the traction motor 10 is determined according to the similarity of the characteristics, such as whether a fault appears, whether a symptom characteristic feature possibly causing some faults exists, whether the traction motor can continue to use for a long time or continue to run for a long time without causing safety faults, and the like .
Also, since the diagnostic process involves many and complicated processing steps, the hardware acceleration function of the FPGA can be used to accelerate the process.
One implementation, including but not limited to, may be seen in the train PHM diagnostic device shown in fig. 3:
the data storage module 31 is used for storing PHM standard data and a preset PHM diagnostic algorithm;
the FPGA data diagnosis acceleration board 32 is connected with the data storage module 31 and the FPGA data acquisition acceleration board 23, and is used for performing data diagnosis operation between train operation data and PHM standard data simultaneously in a multi-channel mode by utilizing the heterogeneous acceleration function of the FPGA.
The PHM standard data and the preset PHM diagnostic algorithm stored in the data storage module 31 are core components of the train-mounted PHM device provided by the present invention, and it is necessary to provide a better level of security protection for the train-mounted PHM device, and specifically, the data storage module 31 may be set in the form of a disk storage array to protect important data stored therein.
RAID (Redundant Array of Independent Disks) is a hard disk group (logical hard disk) formed by combining a plurality of Independent hard Disks (physical hard Disks) in different ways, so as to provide higher storage performance than a single hard disk and provide data backup technology, and the different ways of forming a disk Array are called RAID Levels (RAID Levels), and a user looks like a hard disk, and can partition, format, and the like. In general, the operation of a disk array is just as true of a single hard disk. In contrast, disk arrays are much faster than a single hard disk and provide automatic data backup. The data backup function is that the damaged data can be recovered by using the backup information once the user data is damaged, so that the safety of the user data is guaranteed.
Since the normal operating voltage of the sensors, the normal operating voltage of the signal acquisition device, and the normal operating voltage of the train PHM diagnostic device may differ due to the operating supply voltage requirements, it is also necessary to provide the operating voltage required by each of the various functional sections.
And the power supply module 40 is connected with the sensor 11, the signal acquisition device 20 and the train PHM diagnosis device 30, and is used for respectively providing voltages required by normal operation for the sensor 11, the signal acquisition device 20 and the train PHM diagnosis device 30.
On the basis, a train traction motor diagnosis result obtained after diagnosis is carried out according to the equipment operation data and the standard PHM data can be sent to the train information display system through a data transmission interface with one end connected with the output end of the train PHM diagnosis device 30 and the other end connected with the train information display system through a train bus, so that a train manager can monitor the operation condition and the diagnosis result of the traction motor from the train information display system in time.
Further, a diagnosis result judging device connected with the train PHM diagnosis device 30 may be further provided, which may determine the current fault level of the train traction motor 10 according to the received train traction motor diagnosis result, and generate a fault early warning signal when the current fault level exceeds a preset level, so as to assist train management personnel in monitoring high-risk faults.
Meanwhile, in consideration of the size of the train and the positions and the number of the trains which may be set in the train, the size of the case of the train-mounted PHM equipment is preferably 3U, namely the case has one time of length and width of the standard case and three times of thickness of the standard case, so that the fault diagnosis and early warning functions of one-to-one, one-to-two, one-to-three or one-to-four of the train-mounted PHM equipment and the train traction motor can be flexibly realized based on the configuration mode of the 3U standard case and the functional board card, and the functions of vibration resistance, heat dissipation and the like can be realized. .
Example two
Referring to fig. 4 and 5, fig. 4 and 5 are schematic structural design diagrams given in combination with a specific application scenario on the basis of the first embodiment:
the PHM equipment on the train aims at realizing the fault prediction and health management of the traction motors of the motor cars and the locomotives, a hardware system of the PHM equipment is based on a PCIe internal bus structure, a method of combining an embedded system, data acquisition and hundred mega/kilomega Ethernet communication is adopted, and an ARM + FPGA control hardware architecture is adopted. The embedded host adopts an ARM controller, supports a large-capacity hard disk, can meet the requirement of long-time storage and recording, and adopts an embedded chip to ensure low power consumption, high reliability and stability of the system, and the working principle can be seen in FIG. 4:
train-mounted PHM equipment adopts a 3U standard case, and a circuit function board card consists of five parts: the system comprises a power supply processing module (equal to a power supply module 40), a master control board card (equal to a train PHM diagnosis device 30), a storage array (equal to a data storage module 31), an analog acquisition board card (equal to a signal acquisition device 20) and a system backboard (equal to a connector).
The train-mounted PHM equipment provides a stable rated 24V DC input power supply by a train-mounted storage battery and a charger, provides a required 5VDC internal working power supply for a hardware functional circuit after DC/DC conversion, provides a +/-15V DC double-path power supply for an analog circuit part and provides a +/-24 VDC double-path power supply for an external sensor; the main control board card is realized by adopting an ARM + FPGA architecture, the FPGA mainly completes a train-mounted early warning diagnosis software algorithm, the ARM mainly completes the realization of an external Ethernet port and other internal auxiliary interfaces, and in addition, completes the data scheduling and the realization of a bus protocol application layer; the analog signal acquisition board card 1 is used for acquiring signals of a sensor arranged on a train traction motor 10, completing data acquisition, data storage and data calculation functions, comparing a calculation result with data in an internal characteristic information database, generating a fault information identification code for state recording and storage, and transmitting the stored data to upper-layer PHM equipment of a train in real time through a network interface; meanwhile, the train-mounted PHM equipment has the functions of parameter setting and online upgrading; the train-mounted early warning and diagnosis software is integrated in train-mounted hardware equipment, realizes online early warning and diagnosis, and has the functions of system parameter setting, real-time calculation, analysis, early warning, diagnosis, storage and the like of online characteristic quantities.
Fig. 5 is a schematic diagram of a complete circuit structure based on fig. 4, and mainly includes five parts: the system comprises a main control board card, analog acquisition board cards 1 and 2, a power supply board card and a system back plate.
Simulating an acquisition board card 1: the constant current source 1 provides 4mA current to the 1 st bearing acceleration sensor, the 1 st bearing acceleration sensor outputs three direction acceleration signals X1, Y1 and Z1 respectively through signal conditioning circuits 1, 2 and 3, the Input signals X1, Y1 and Z1 are preprocessed and anti-aliasing filtering functions are realized, the signals are transmitted to the channels 1 of the two high-precision A/D converters 1 and A/D converters 2, the control and data acquisition of the two paths of A/D converters 1 and A/D converters 2 are realized by using an FPGA (Serial Peripheral Interface) controller module, the acquired data are transmitted to an ADC 1 (analog to digital converter; FIFO is an abbreviation of First Input First Output and refers to a First-in First-out queue) and an ADC FIFO2, the FIFO group control unit controls the corresponding FIFO, and the data are transmitted to an Advanced Interface (Advanced Interface) with DMA (Direct Memory Access DMA) controller, a bus protocol) bus enters data processing 1 and data processing 2 for data processing, and the transceiver 1 and the transceiver 2 of the analog acquisition board card 1 transmit data to the transceiver 1 and the transceiver 2 of the main control board card through a backplane connector (S-Slot1) and a backplane connector (M-Slot). Other channels of the analog acquisition board card 1 realize the rapid synchronous data acquisition and transmission of a plurality of channels of the system through the clock synchronization mechanism and the message flow of the bus by the same data preprocessing and acquisition and through the FPGA logic resource.
And (3) simulating an acquisition board card 2: three current sensors + -24 VDC dual power are provided through the F48 connector, three current sensor output signals pass through the signal conditioning circuits 1, 2, 3, the method comprises the steps of realizing preprocessing and anti-aliasing filtering functions on input signals Ia, Ib and Ic, transmitting the input signals Ia, Ib and Ic to two channels 1 of the A/D converter 1 and the A/D converter 2 with high precision, utilizing an SPI (Serial peripheral interface) controller module of an FPGA (field programmable gate array) to realize control and data acquisition of the two channels of the A/D converter 1 and the A/D converter 2, transmitting acquired data to an ADC FIFO1 and an ADCFIFO2, controlling the corresponding FIFOs by a FIFO group control unit, enabling the data to enter the data processor 1 and the data processor 2 for data processing through an AXI (advanced extensible interface) bus with a DMA (direct memory access), and transmitting the data to the transceiver 1 and the transceiver 2 of a master control board card through a backplane connector (S-Slot1) and a backplane connector (M-Slot). Other channels of the analog acquisition board card 2 realize the rapid synchronous data acquisition and transmission of a plurality of channels of the system through the clock synchronization mechanism and the message flow of the bus by the same data preprocessing and acquisition and through the FPGA logic resource.
The transceivers of the main control boards 1 to 8 respectively transmit data to the data processors 1 to 8, the data of the 8 data processors are transmitted to a data buffer by an AXI bus with DMA, and the AXI bus with DMA is controlled by an AXI bus controller; on one hand, all collected data are stored in a data storage array as raw data through a Serial Advanced Technology Attachment (Serial Advanced Technology Attachment, which is a Serial hardware driver interface based on industry standard) through a SATA interface; on the other hand, a diagnosis algorithm unit is read in, data processing is rapidly completed through a fault diagnosis algorithm hardware accelerator, and form transformation, dimension compression and fault characteristic information refinement are carried out on an original signal so as to realize fault prediction, state evaluation, fault diagnosis and service life prediction; the main control board ARM microprocessor part: the system comprises a DDR3 (memory level), a QSPI Flash (Flash memory chip) and a JTAG debugging port (Joint test action Group, which is an international standard test protocol and is mainly used for chip internal test) to form a minimum system; implementing an AXI bus controller function; two paths of external 100M/1000M Ethernet interfaces are respectively expanded through the Ethernet PHY1 and the PHY2, and are isolated from the Ethernet through Ethernet isolation transformers, so that the reliability of external data communication of the main control board is realized: one path of the PHM data communication is in data communication with a vehicle-mounted PHM system on the upper layer (whole vehicle) of the train, the other path of the PHM data communication is connected with an upper computer to realize parameter setting of motor parameters, sampling frequency and the like, and meanwhile, the PHM data communication system can also perform functions of field debugging, data offline downloading and the like; the USB PHY expands the functions of conveniently downloading data off line and the like through one path of USB interface. The FPGA part completes the realization of a high-speed serial system bus and a high-speed storage interface (hard disk interface).
It should be noted that, in fig. 4 and fig. 5 and the corresponding text description, the analog acquisition board 1, the analog acquisition board 2, the transceiver 1, the transceiver 2, and the like are represented, where the numbers are not reference numerals, but are a way for distinguishing the existing multiple identical functional components, and may be understood as a first analog acquisition board, a second analog acquisition board, a first transceiver, and a second transceiver, and the rest of the same parts are not explained one by one.
Because the situation is complicated and cannot be illustrated by any list, those skilled in the art can realize that many examples exist in combination with the actual situation according to the basic method principle provided by the present invention, and the protection scope of the present invention should be protected without sufficient inventive labor.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the principles of the invention, and it is intended that such changes and modifications also fall within the scope of the appended claims.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A train-mounted PHM device, comprising:
the signal acquisition device (20) is connected with a sensor (11) arranged on a train traction motor (10) and is used for acquiring equipment operation data fed back by the sensor (11);
the train PHM diagnosis device (30) is connected with the signal acquisition device (20) through a connector and is used for diagnosing the current running state of the train traction motor (10) according to the equipment running data and pre-stored PHM standard data;
and the power supply module (40) is connected with the sensor (11), the signal acquisition device (20) and the train PHM diagnosis device (30) and is used for respectively providing voltages required by normal work for the sensor (11), the signal acquisition device (20) and the train PHM diagnosis device (30).
2. The train-mounted PHM device of claim 1, wherein the signal acquisition means (20) comprises:
the signal conditioning circuit (21) is connected with the sensor (11) and is used for carrying out preprocessing and anti-aliasing filtering processing on the received equipment operation data to obtain processed data;
the input end of the analog-to-digital converter (22) is connected with the output end of the signal conditioning circuit (21), the output end of the analog-to-digital converter is connected with the input end of the FPGA information acquisition board card (23), and the analog-to-digital converter is used for converting processed data which are analog quantity into digital quantity;
the output end of the FPGA data acquisition acceleration board card (23) is connected with the input end of the train PHM diagnosis device (30) and is used for carrying out data acquisition and processing synchronously by utilizing the heterogeneous acceleration function of the FPGA in a multi-channel mode.
3. The train-borne PHM apparatus of claim 2, wherein said signal acquisition device (20) further comprises:
and the equipment operation data recording module (24) is connected with the FPGA data acquisition acceleration board card (23) and is used for recording and storing the equipment operation data of the digital quantity.
4. The train-mounted PHM apparatus of claim 2 or 3, wherein the train PHM diagnostic device (30) comprises:
the data storage module (31) is used for storing the PHM standard data and a preset PHM diagnostic algorithm;
and the FPGA data diagnosis acceleration board card (32) is connected with the data storage module (31) and the FPGA data acquisition acceleration board card (23) and is used for simultaneously carrying out data diagnosis operation between the train operation data and the PHM standard data in a multi-channel mode by utilizing the heterogeneous acceleration function of the FPGA.
5. Train-mounted PHM device according to claim 4, characterized in that the data storage module (31) is embodied as a disk storage array.
6. Train-mounted PHM device according to claim 1, characterized in that the number of acquisition channels of the signal acquisition means (20) is the same as the number of types of sensors (11).
7. The train-mounted PHM device of claim 1, further comprising:
and one end of the data transmission interface is connected with the output end of the train PHM diagnosis device (30), and the other end of the data transmission interface is connected with a train information display system through a train bus, and is used for transmitting a train traction motor diagnosis result obtained after diagnosis is carried out according to the equipment operation data and the standard PHM data to the train information display system.
8. The train-mounted PHM apparatus of claim 7, further comprising:
and the diagnosis result judging device is connected with the train PHM diagnosis device (30) and is used for determining the current fault level of the train traction motor (10) according to the received train traction motor diagnosis result and generating a fault early warning signal when the current fault level exceeds a preset level.
9. The PHM device as claimed in any one of claims 1 to 8, wherein the housing of the PHM device is 3U in size.
10. A high speed rail train comprising a traction system and a braking system, and the traction system comprising a preset number of train traction motors, characterized in that the traction system further comprises a train-mounted PHM device as claimed in any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885029.0A CN110803192A (en) | 2018-08-06 | 2018-08-06 | Train-mounted PHM equipment and high-speed rail train |
| PCT/CN2018/114087 WO2020029450A1 (en) | 2018-08-06 | 2018-11-06 | Train-mounted phm device, and high-speed train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810885029.0A CN110803192A (en) | 2018-08-06 | 2018-08-06 | Train-mounted PHM equipment and high-speed rail train |
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| CN110803192A true CN110803192A (en) | 2020-02-18 |
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