CN211075912U - Safety monitoring system for train running gear - Google Patents
Safety monitoring system for train running gear Download PDFInfo
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- CN211075912U CN211075912U CN201921657564.7U CN201921657564U CN211075912U CN 211075912 U CN211075912 U CN 211075912U CN 201921657564 U CN201921657564 U CN 201921657564U CN 211075912 U CN211075912 U CN 211075912U
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Abstract
An embodiment of the utility model provides a train walking portion safety monitoring system, include: the device comprises a main control unit, an axle box vibration acquisition processing unit, a stable acquisition processing unit, a destabilization acquisition processing unit and an axle temperature acquisition processing unit; the axle box vibration acquisition and processing unit is used for acquiring and processing data of axle box vibration and axle box temperature; the stable acquisition processing unit is used for acquiring and processing a vibration acceleration signal of the vehicle body; the instability acquisition and processing unit is used for acquiring and processing a vibration acceleration signal of the bogie; the shaft temperature acquisition and processing unit is used for acquiring and processing shaft temperature data; the main control unit provides electric energy for the axle box vibration acquisition processing unit, the stable acquisition processing unit, the unstable acquisition processing unit and the axle temperature acquisition processing unit, records data acquired by the units, provides control communication, storage communication and service communication for the units, and further realizes bus management.
Description
Technical Field
The utility model relates to a train safety field, in particular to train running gear safety monitoring system.
Background
With the continuous increase of the operation speed of high-speed trains in China, the guarantee of the operation safety of the trains during service is the key point of research and attack of railway workers and scientific researchers. The train running part is a part of the vehicle running along a line under the action of traction power. The function of the train running part is to ensure that the train runs along the steel rail flexibly, safely and smoothly and passes through a curve; reliably bear various forces acting on the vehicle and transmit the forces to the steel rail; the mutual impact between the vehicle and the steel rail is alleviated, the vibration of the vehicle is reduced, and the sufficient running stability and the good running quality are ensured; the brake mechanism has a reliable brake mechanism, so that the vehicle has a good brake effect. The train running part generally comprises wheel sets, axle box lubricating devices, side frames, swing bolsters, spring damping devices and the like. The train running part plays an important role in the train, and the monitoring of the train running part is related to the running safety of the train.
In the prior art, most of the methods adopted when monitoring the train running part are fault post-monitoring, such as: the existence of abnormal vibration or abnormal sound is monitored manually, or the existence of abnormality is monitored by installing a fuse relay. Although the monitoring means can find faults to a certain extent, the real-time performance of fault finding is low, the types of the monitored faults are single, and the potential faults of the train running gear cannot be comprehensively checked.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a safety monitoring system is walked to train for the lower defect of fault monitoring type singleness, trouble discovery real-time when walking the ability of moving the ability of train among the solution prior art, the realization is walked the real-time, the comprehensive monitoring of ability of moving the ability of train.
An embodiment of the utility model provides a train walking portion safety monitoring system, include: the device comprises a main control unit, an axle box vibration acquisition processing unit, a stable acquisition processing unit, a destabilization acquisition processing unit and an axle temperature acquisition processing unit; wherein the content of the first and second substances,
the axle box vibration acquisition and processing unit is used for acquiring and processing data of axle box vibration and axle box temperature; the stable acquisition processing unit is used for acquiring and processing a vibration acceleration signal of the vehicle body; the instability acquisition and processing unit is used for acquiring and processing a vibration acceleration signal of the bogie; the shaft temperature acquisition and processing unit is used for acquiring and processing shaft temperature data; the main control unit provides electric energy for the axle box vibration acquisition processing unit, the stable acquisition processing unit, the unstable acquisition processing unit and the axle temperature acquisition processing unit, records data acquired by the units, provides control communication, storage communication and service communication for the units, and further realizes bus management.
According to an embodiment of the present invention, the axle box vibration acquisition and processing unit includes an axle box vibration processing subunit, an axle box vibration acquisition subunit, and a composite sensor mounted on the axle box; the composite sensor can acquire vibration information and temperature information on the axle box, and transmits the acquired vibration information and temperature information to the axle box vibration acquisition subunit; axle box vibration collection subunit transmits received vibration information and temperature information for axle box vibration processing subunit, axle box vibration processing subunit handles axle box vibration data, temperature data, includes: comparing the axle box vibration data with reference data relating to axle box vibration to monitor whether the vibration of the axle box is normal; comparing the axle box temperature data with reference data about the axle box temperature, thereby monitoring whether the axle box temperature is in a normal state; and storing the acquired axle box vibration data and the axle box temperature data.
According to an embodiment of the present invention, the stationary acquisition processing unit includes a stationary processing subunit, a stationary acquisition subunit, and an acceleration sensor mounted on the vehicle body; the acceleration sensor can acquire vibration acceleration information of the vehicle body, and transmits the acquired vibration acceleration information of the vehicle body to the stable acquisition subunit; the stationary acquisition subunit transmits the received vibration acceleration information of the vehicle body to the stationary processing subunit; the smooth processing subunit further processes the vibration acceleration information of the vehicle body, and the process comprises the following steps: evaluating the stability index of the vehicle body according to the vibration acceleration change condition of the vehicle body; monitoring the abnormal collision phenomenon of the vehicle body according to the sudden change condition of the vibration acceleration of the vehicle body; controlling an acceleration sensor arranged on a vehicle body to perform self-checking so as to determine whether the acceleration sensor is in a normal working state; and storing the acquired vibration acceleration information of the vehicle body.
According to an embodiment of the present invention, the instability acquisition and processing unit includes an instability processing subunit, an instability acquisition subunit, and an acceleration sensor mounted on the bogie; the acceleration sensor can acquire vibration acceleration information of the bogie, and transmits the acquired vibration acceleration information of the bogie to the instability acquisition subunit; the instability acquisition subunit transmits the received vibration acceleration information of the bogie to the instability processing subunit; the instability processing subunit further processes the vibration acceleration information of the bogie, and the instability processing subunit comprises the following steps: comparing the vibration acceleration information of the bogie with a reference data about the instability of the bogie, thereby monitoring whether the bogie is in an unstable state; controlling an acceleration sensor arranged on a bogie to perform self-checking so as to determine whether the acceleration sensor is in a normal working state; and storing the collected vibration acceleration information of the bogie.
According to an embodiment of the present invention, the shaft temperature collecting and processing unit includes a shaft temperature processing subunit, a shaft temperature collecting subunit, and temperature sensors installed on the shaft box, the gear box, and the motor; the temperature sensor is used for acquiring shaft temperature data of the shaft box, the gear box and the motor, and the temperature sensor transmits the acquired shaft temperature data to the shaft temperature acquisition subunit; the shaft temperature acquisition subunit transmits the received shaft temperature data of the shaft box, the gear box and the motor to the shaft temperature processing subunit; the axle temperature processing subunit further processes the received axle temperature data of the axle box, the gear box and the motor, and comprises the following steps: comparing the axle temperature data of the axle box, the gear box and the motor with reference data about the axle temperature of the axle box, the gear box and the motor, thereby monitoring whether the axle temperature of the axle box, the gear box and the motor is in an overtemperature state; predicting the axle temperature of the axle box, the gear box and the motor within a certain time in the future according to the previous axle temperature data of the axle box, the gear box and the motor, thereby monitoring whether the axle temperature of the axle box, the gear box and the motor is in an overtemperature state within a certain time in the future; and storing the collected shaft temperature data of the shaft box, the gear box and the motor.
According to the utility model discloses an embodiment, on axle box, gear box and the motor temperature sensor forms the binary channels structure, and arbitrary all the way correspondence among the binary channels temperature sensor has independent axle temperature to handle subelement, axle temperature and gathers subelement.
According to an embodiment of the present invention, the main control unit includes a power board, a switch board, a CAN bus, a first control communication board, a second control communication board, a recording board, and a digital input/output board; the power panel comprises two power branches, wherein any one power branch comprises a power interface, a voltage conversion part and a voltage output protection part, and each power branch is electrically connected with the axle box vibration acquisition and processing unit, the stable acquisition and processing unit, the unstable acquisition and processing unit and the axle temperature acquisition and processing unit; the exchange board includes: the intranet switch is connected with the first control communication board, the second control communication board, the recording board and each acquisition processing unit to realize control communication and storage communication in an Ethernet mode, and the extranet switch is connected with external equipment, the first control communication board, the second control communication board, the recording board and each acquisition processing unit to realize control communication and service communication between a system and the outside in the Ethernet mode; the CAN bus adopts a chain topology structure and is connected with the first control communication board, the second control communication board, the digital quantity input/output board, the recording board and each acquisition processing unit, and the control communication and the storage communication in the system CAN be realized by utilizing the CAN bus; the first control communication board and the second control communication board CAN exchange control information with each acquisition processing unit in the system through an Ethernet and/or a CAN bus respectively to realize control communication in the system; the recording board exchanges data with each acquisition processing unit in the system through Ethernet and/or CAN, and realizes storage communication in the system.
According to the utility model discloses an embodiment, main control unit, axle box vibration acquisition and processing unit, steady acquisition and processing unit, unstability acquisition and processing unit and axle temperature acquisition and processing unit realize on same backplate, each intercell electric isolation.
According to the utility model discloses an embodiment, the axle box vibrates to gather the monitored data that processing unit, steady collection processing unit, unstability collection processing unit and axle temperature collection processing unit obtained adopts unified data format to define, transmit and save.
The embodiment of the utility model provides a train walking portion safety monitoring system can carry out real time monitoring to axle box, automobile body, bogie, motor, the gear box in the train walking portion, in case discover the fault information can in time report, is favorable to driving safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a safety monitoring system for a train running gear according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a safety monitoring system for a train running gear according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is the utility model provides a train moves line portion safety monitoring system's that moves structural schematic diagram, as shown in fig. 1, the utility model provides a train moves line portion safety monitoring system includes: the device comprises a main control unit, an axle box vibration acquisition processing unit, a stable acquisition processing unit, a destabilization acquisition processing unit and an axle temperature acquisition processing unit; the axle box vibration acquisition and processing unit is used for acquiring and processing data of axle box vibration and axle box temperature; the stable acquisition processing unit is used for acquiring and processing a vibration acceleration signal of the vehicle body; the instability acquisition and processing unit is used for acquiring and processing a vibration acceleration signal of the bogie; the shaft temperature acquisition and processing unit is used for acquiring and processing shaft temperature data; the main control unit provides electric energy for the axle box vibration acquisition processing unit, the stable acquisition processing unit, the unstable acquisition processing unit and the axle temperature acquisition processing unit, records data acquired by the units, provides control communication, storage communication and service communication for the units, and further realizes bus management.
Fig. 2 is a schematic circuit diagram of a safety monitoring system for a train running gear provided in an embodiment of the present invention, and as shown in fig. 2, the axle box vibration acquisition and processing unit includes an axle box vibration processing subunit, an axle box vibration acquisition subunit, and a composite sensor mounted on an axle box; the composite sensor can acquire vibration information and temperature information on the axle box, and transmits the acquired vibration information and temperature information to the axle box vibration acquisition subunit in a wired or wireless mode; the axle box vibration acquisition subunit is an interface of data transmission, and it transmits received vibration information and temperature information for axle box vibration processing subunit, axle box vibration processing subunit handles axle box vibration data, temperature data, includes: comparing the axle box vibration data with reference data relating to axle box vibration to monitor whether the vibration of the axle box is normal; comparing the axle box temperature data with reference data about the axle box temperature, thereby monitoring whether the axle box temperature is in a normal state; the axle box vibration data, the axle box temperature data that will gather save, as an preferred implementation, the embodiment of the utility model provides a still saved data acquisition time in the lump when saving axle box vibration data and axle box temperature data.
The stable acquisition processing unit comprises a stable processing subunit, a stable acquisition subunit and an acceleration sensor arranged on the vehicle body; the acceleration sensor can acquire vibration acceleration information of the vehicle body, and transmits the acquired vibration acceleration information of the vehicle body to the stable acquisition subunit in a wired or wireless mode; the stable acquisition subunit is a data transmission interface and transmits the received vibration acceleration information of the vehicle body to the stable processing subunit; the smooth processing subunit further processes the vibration acceleration information of the vehicle body, and the process comprises the following steps: evaluating the stability index of the vehicle body according to the vibration acceleration change condition of the vehicle body; monitoring the abnormal collision phenomenon of the vehicle body according to the sudden change condition of the vibration acceleration of the vehicle body; controlling an acceleration sensor arranged on a vehicle body to perform self-checking so as to determine whether the acceleration sensor is in a normal working state; with the automobile body vibration acceleration information of gathering save, as an preferred implementation mode, the embodiment of the utility model provides a still saved data acquisition time in the lump when saving automobile body vibration acceleration information.
The instability acquisition and processing unit comprises an instability processing subunit, an instability acquisition subunit and an acceleration sensor arranged on the bogie; the acceleration sensor can acquire vibration acceleration information of the bogie, and transmits the acquired vibration acceleration information of the bogie to the instability acquisition subunit in a wired or wireless mode; the instability acquisition subunit is a data transmission interface and transmits the received vibration acceleration information of the bogie to the instability processing subunit; the instability processing subunit further processes the vibration acceleration information of the bogie, and the instability processing subunit comprises the following steps: comparing the vibration acceleration information of the bogie with a reference data about the instability of the bogie, thereby monitoring whether the bogie is in an unstable state; controlling an acceleration sensor arranged on a bogie to perform self-checking so as to determine whether the acceleration sensor is in a normal working state; with the bogie vibration acceleration information of gathering save, as an preferred implementation mode, the embodiment of the utility model provides a still saved the data acquisition time in the lump when saving bogie vibration acceleration information.
The shaft temperature acquisition and processing unit comprises a shaft temperature processing subunit, a shaft temperature acquisition subunit and temperature sensors arranged on the shaft box, the gear box and the motor; the temperature sensor is used for acquiring shaft temperature data of the shaft box, the gear box and the motor, and transmits the acquired shaft temperature data to the shaft temperature acquisition subunit in a wired or wireless mode; the shaft temperature acquisition subunit is a data transmission interface and transmits the received shaft temperature data of the shaft box, the gear box and the motor to the shaft temperature processing subunit; the axle temperature processing subunit further processes the received axle temperature data of the axle box, the gear box and the motor, and comprises the following steps: comparing the axle temperature data of the axle box, the gear box and the motor with reference data about the axle temperature of the axle box, the gear box and the motor, thereby monitoring whether the axle temperature of the axle box, the gear box and the motor is in an overtemperature state; predicting the axle temperature of the axle box, the gear box and the motor within a certain time in the future according to the previous axle temperature data of the axle box, the gear box and the motor, thereby monitoring whether the axle temperature of the axle box, the gear box and the motor is in an overtemperature state within a certain time in the future; the axle box, the gear box that will gather and the axle temperature data of motor save, as an preferred implementation, the embodiment of the utility model provides a still saved data acquisition time in the lump when saving axle temperature data. As a preferred implementation manner, the embodiment of the present invention provides an axial temperature collecting and processing unit that adopts a redundant structure, that is: temperature sensors on the axle box, the gear box and the motor form a double-channel structure, and one channel of the double-channel temperature sensor corresponds to an independent shaft temperature processing subunit and a shaft temperature acquisition subunit. The internal groups of the shaft temperature acquisition and processing units can adopt local buses to realize small-range communication in the units, such as RS485/RS422 communication.
The main control unit comprises a power panel, a switch board, a CAN bus, a first control communication board, a second control communication board, a recording board and a Data Input and Output (DIO) board; the power panel adopts a redundant structure and comprises two power branches, wherein any one power branch comprises a power interface, a voltage conversion part and a voltage output protection part, and each power branch is electrically connected with the axle box vibration acquisition processing unit (without a sensor part), the stable acquisition processing unit (without a sensor part), the unstable acquisition processing unit (without a sensor part) and the axle temperature acquisition processing unit (without a sensor part); the exchange board includes: intranet switch (non-management type switch) and outer net switch (non-management type switch), the intranet switch with first control communication board, second control communication board, record board and each gather the processing unit and connect to control communication and storage communication are realized to the mode of ethernet, outer net switch and external equipment and in the system first control communication board, second control communication board, record board and each gather the processing unit and connect, and the communication inside and outside the system has been realized to the mode of ethernet, accomplishes system and outside control communication and service communication. The CAN bus adopts a chain topology structure and is connected with the first control communication board, the second control communication board, the DIO board, the recording board and each acquisition processing unit, and the control communication and the storage communication in the system CAN be realized by utilizing the CAN bus; the first control communication board and the second control communication board CAN exchange control information with each acquisition processing unit in the system through an Ethernet and/or a CAN bus respectively to realize control communication in the system; the recording board exchanges data with each acquisition processing unit in the system through an Ethernet and/or a CAN bus, and storage communication in the system is realized.
As can be seen from the above description of the main control unit, the power panel of the main control unit adopts the design of single power panel internal redundancy, double-path bus type back panel power distribution and hierarchical overcurrent protection, so that the reliability of power supply is improved; when the main control unit communicates internally, the heterogeneous redundancy of the Ethernet + CAN bus is adopted, so that the redundancy control communication and the storage communication are realized; when the master control unit is in external communication, the control communication and the service communication are mutually independent and physically separated, wherein the control communication realizes the two-way redundancy of the train network communication through the double-board redundancy of the first control communication board and the second control communication board; service communication of each acquisition processing unit is realized through an external network switch interface of the exchange board, and PTU service software accesses relevant board cards of each acquisition processing unit and the main control unit through the external vehicle switch and the exchange board of the main control unit to realize service functions such as software updating, data downloading, parameter setting and the like.
The embodiment of the utility model provides an each unit among the train running gear safety monitoring system adopts the modularized design, each sets up electrical isolation (power isolation, communication isolation) between the unit (axle box vibration acquisition processing unit promptly, steady acquisition processing unit, between unstability acquisition processing unit and the axle temperature acquisition processing unit) and the principal and subordinate unit (main control unit and axle box vibration acquisition processing unit promptly, steady acquisition processing unit, between unstability acquisition processing unit and the axle temperature acquisition processing unit). The various units in the system (except for the sensors) may be implemented on the same backplane.
The embodiment of the utility model provides a train walking portion safety monitoring system can carry out real time monitoring to axle box, automobile body, bogie, motor, the gear box in the train walking portion, in case discover the fault information can in time report, is favorable to driving safety. The monitoring data obtained by each unit in the safety monitoring system of the train running part is defined, transmitted and stored by adopting a uniform data format, a good foundation is laid for deep processing of the monitoring data, comprehensive diagnosis and analysis of the health state of the train running part and pre-alarming of possible faults are facilitated according to the data in subsequent operation, and access of a third-party comprehensive diagnosis algorithm is supported.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A safety monitoring system for a running gear of a train, comprising: the device comprises a main control unit, an axle box vibration acquisition processing unit, a stable acquisition processing unit, a destabilization acquisition processing unit and an axle temperature acquisition processing unit; wherein the content of the first and second substances,
the axle box vibration acquisition and processing unit is used for acquiring and processing data of axle box vibration and axle box temperature; the stable acquisition processing unit is used for acquiring and processing a vibration acceleration signal of the vehicle body; the instability acquisition and processing unit is used for acquiring and processing a vibration acceleration signal of the bogie; the shaft temperature acquisition and processing unit is used for acquiring and processing shaft temperature data; the main control unit provides electric energy for the axle box vibration acquisition processing unit, the stable acquisition processing unit, the unstable acquisition processing unit and the axle temperature acquisition processing unit, records data acquired by the units, provides control communication, storage communication and service communication for the units, and further realizes bus management.
2. The train running gear safety monitoring system according to claim 1, wherein the axle box vibration acquisition and processing unit comprises an axle box vibration processing subunit, an axle box vibration acquisition subunit, and a composite sensor mounted on an axle box; the composite sensor can acquire vibration information and temperature information on the axle box, and transmits the acquired vibration information and temperature information to the axle box vibration acquisition subunit; axle box vibration collection subunit transmits received vibration information and temperature information for axle box vibration processing subunit, axle box vibration processing subunit handles axle box vibration data, temperature data, includes: comparing the axle box vibration data with reference data relating to axle box vibration to monitor whether the vibration of the axle box is normal; comparing the axle box temperature data with reference data about the axle box temperature, thereby monitoring whether the axle box temperature is in a normal state; and storing the acquired axle box vibration data and the axle box temperature data.
3. The train running gear safety monitoring system according to claim 1, wherein the stationary acquisition processing unit comprises a stationary processing subunit, a stationary acquisition subunit and an acceleration sensor mounted on a train body; the acceleration sensor can acquire vibration acceleration information of the vehicle body, and transmits the acquired vibration acceleration information of the vehicle body to the stable acquisition subunit; the stationary acquisition subunit transmits the received vibration acceleration information of the vehicle body to the stationary processing subunit; the smooth processing subunit further processes the vibration acceleration information of the vehicle body, and the process comprises the following steps: evaluating the stability index of the vehicle body according to the vibration acceleration change condition of the vehicle body; monitoring the abnormal collision phenomenon of the vehicle body according to the sudden change condition of the vibration acceleration of the vehicle body; controlling an acceleration sensor arranged on a vehicle body to perform self-checking so as to determine whether the acceleration sensor is in a normal working state; and storing the acquired vibration acceleration information of the vehicle body.
4. The train running part safety monitoring system according to claim 1, wherein the instability acquisition and processing unit comprises an instability processing subunit, an instability acquisition subunit and an acceleration sensor mounted on a bogie; the acceleration sensor can acquire vibration acceleration information of the bogie, and transmits the acquired vibration acceleration information of the bogie to the instability acquisition subunit; the instability acquisition subunit transmits the received vibration acceleration information of the bogie to the instability processing subunit; the instability processing subunit further processes the vibration acceleration information of the bogie, and the instability processing subunit comprises the following steps: comparing the vibration acceleration information of the bogie with a reference data about the instability of the bogie, thereby monitoring whether the bogie is in an unstable state; controlling an acceleration sensor arranged on a bogie to perform self-checking so as to determine whether the acceleration sensor is in a normal working state; and storing the collected vibration acceleration information of the bogie.
5. The train running gear safety monitoring system according to claim 1, wherein the shaft temperature acquisition and processing unit comprises a shaft temperature processing subunit, a shaft temperature acquisition subunit, and temperature sensors mounted on an axle box, a gear box, and a motor; the temperature sensor is used for acquiring shaft temperature data of the shaft box, the gear box and the motor, and the temperature sensor transmits the acquired shaft temperature data to the shaft temperature acquisition subunit; the shaft temperature acquisition subunit transmits the received shaft temperature data of the shaft box, the gear box and the motor to the shaft temperature processing subunit; the axle temperature processing subunit further processes the received axle temperature data of the axle box, the gear box and the motor, and comprises the following steps: comparing the axle temperature data of the axle box, the gear box and the motor with reference data about the axle temperature of the axle box, the gear box and the motor, thereby monitoring whether the axle temperature of the axle box, the gear box and the motor is in an overtemperature state; predicting the shaft temperatures of the axle box, the gear box and the motor within a certain time in the future according to the previous shaft temperature data of the axle box, the gear box and the motor, so as to monitor whether the shaft temperatures of the axle box, the gear box and the motor are in an overtemperature state within a certain time in the future; and storing the collected shaft temperature data of the shaft box, the gear box and the motor.
6. The safety monitoring system for the running gear of the train according to claim 5, wherein the temperature sensors on the axle box, the gear box and the motor form a dual-channel structure, and any one of the dual-channel temperature sensors corresponds to an independent shaft temperature processing subunit and an independent shaft temperature acquisition subunit.
7. The train running gear safety monitoring system according to claim 1, wherein the main control unit includes a power supply board, a switch board, a CAN bus, a first control communication board, a second control communication board, a recording board, and a digital quantity input-output board; the power panel comprises two power branches, wherein any one power branch comprises a power interface, a voltage conversion part and a voltage output protection part, and each power branch is electrically connected with the axle box vibration acquisition and processing unit, the stable acquisition and processing unit, the unstable acquisition and processing unit and the axle temperature acquisition and processing unit; the exchange board includes: the intranet switch is connected with the first control communication board, the second control communication board, the recording board and each acquisition processing unit to realize control communication and storage communication in an Ethernet mode, and the extranet switch is connected with external equipment, the first control communication board, the second control communication board, the recording board and each acquisition processing unit to realize control communication and service communication between a system and the outside in the Ethernet mode; the CAN bus adopts a chain topology structure and is connected with the first control communication board, the second control communication board, the digital quantity input/output board, the recording board and each acquisition processing unit, and the control communication and the storage communication in the system CAN be realized by utilizing the CAN bus; the first control communication board and the second control communication board CAN exchange control information with each acquisition processing unit in the system through an Ethernet and/or a CAN bus respectively to realize control communication in the system; the recording board exchanges data with each acquisition processing unit in the system through Ethernet and/or CAN, and realizes storage communication in the system.
8. The safety monitoring system for the running gear of the train according to claim 1, wherein the main control unit, the axle box vibration acquisition and processing unit, the steady acquisition and processing unit, the instability acquisition and processing unit and the axle temperature acquisition and processing unit are implemented on the same back plate, and the units are electrically isolated.
9. The system for monitoring the safety of the running gear of the train according to claim 1, wherein the monitoring data obtained by the axle box vibration acquisition and processing unit, the steady acquisition and processing unit, the instability acquisition and processing unit and the axle temperature acquisition and processing unit are defined, transmitted and stored in a unified data format.
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| CN201921657564.7U CN211075912U (en) | 2019-09-30 | 2019-09-30 | Safety monitoring system for train running gear |
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| CN201921657564.7U CN211075912U (en) | 2019-09-30 | 2019-09-30 | Safety monitoring system for train running gear |
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