CN115892111A - Health state monitoring system for train running gear - Google Patents
Health state monitoring system for train running gear Download PDFInfo
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- CN115892111A CN115892111A CN202310022192.5A CN202310022192A CN115892111A CN 115892111 A CN115892111 A CN 115892111A CN 202310022192 A CN202310022192 A CN 202310022192A CN 115892111 A CN115892111 A CN 115892111A
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Abstract
The invention discloses a health state monitoring system of a train running gear, which comprises: the system comprises a host monitoring subsystem and a slave monitoring subsystem, wherein the host monitoring subsystem is installed on a train trailer, and the slave monitoring subsystem is installed on a train motor car; the host monitoring subsystem includes: the monitoring system comprises a monitoring host, a host front processor and a host composite sensor; the slave monitoring subsystem comprises: monitoring the slave, the slave front processor and the slave composite sensor. The invention can realize the real-time monitoring of the working state of the running part, provides a large amount of real data for supporting operation and maintenance, and realizes the early warning, fault diagnosis and maintenance decision suggestion of the state and the rail state of the running part by adopting the technologies of a multi-parameter diagnosis mechanism and the like which combines the temperature, vibration and impact monitoring. Planned maintenance is converted into state maintenance according to the real-time monitoring, diagnosing and analyzing result, the operation and maintenance efficiency is improved, and the real-time monitoring performance provides effective guarantee for safe and effective operation of the subway.
Description
Technical Field
The invention relates to the technical field of mechanical equipment monitoring, in particular to a health state monitoring system for a train running gear.
Background
With the continuous development and progress of the urbanization process, the urban rail subway transportation means becomes an important transportation means generally selected by people for going out. Due to the fact that the running part, a key part of the train, is worn, stressed and fatigued, damaged and the like due to long-time running of the subway train, the health condition of the walking part of the subway directly influences the safe running of the subway train.
At present, the existing monitoring/detecting means such as flaw detection, appearance inspection, strain monitoring and other technologies cannot quickly and accurately detect faults, and the vehicle operation and maintenance cost is high. Because the working state of the vehicle component can not be mastered in real time, the abnormity of the component can be found in time, the conventional operation and maintenance is generally planned maintenance, the maintenance efficiency is low, and the cost is high.
Disclosure of Invention
In order to solve the problems in the prior art, the embodiment of the invention provides a health state monitoring system for a train running gear. The technical scheme is as follows:
in a first aspect, a health status monitoring system for a running gear of a train is provided, which includes: the system comprises a host monitoring subsystem and a slave monitoring subsystem, wherein the host monitoring subsystem is installed on a train trailer, and the slave monitoring subsystem is installed on a train motor car;
the host monitoring subsystem includes: the monitoring system comprises a monitoring host, a host front processor and a host composite sensor;
the slave monitoring subsystem comprises: monitoring a slave, a slave front processor and a slave composite sensor;
the slave composite sensor is used for acquiring state data of the running part of the motor train of the train, wherein the state data comprises temperature, vibration and impact;
the slave front processor is connected with the slave composite sensor and used for receiving the state data acquired by the plurality of slave composite sensors to obtain summarized data and sending the summarized data to the monitoring slave;
the monitoring slave is respectively connected with the slave front processor and the monitoring host and is used for receiving and storing summarized data sent by the slave front processor;
the host composite sensor is used for acquiring state data of the running part of the train trailer, wherein the state data comprises temperature, vibration and impact;
the host computer pre-processor is connected with the host computer composite sensor and is used for summarizing the state data acquired by the plurality of host computer composite sensors and sending the summarized data to the monitoring host computer;
the monitoring host is connected with the host front-end processor and used for receiving the state data sent by the host front-end processor.
Further, the monitoring host comprises: the device comprises a back plate, a power supply module, an off-track detection module, a vehicle speed detection module, a workshop rotating speed/debug module, a vibration signal acquisition module and a main control module.
Further, the monitoring slave includes: the device comprises a back plate, a power supply module, an off-track detection module, a workshop rotating speed/debug module, a vibration signal acquisition module and a main control module.
Furthermore, the backboard is used for supplying power to each module and carrying out communication interaction;
the power supply module is used for supplying power to other modules;
the derailment detection module is used for acquiring a vibration signal according to the state data and judging whether derailment occurs or not;
the workshop rotating speed/debug module is used for collecting vehicle rotating speed signals, preprocessing the voltage type or current type vehicle rotating speed signals and then returning the preprocessed signals to the main control module through the back plate;
the main control module is used for receiving and storing temperature information, vibration information and vehicle rotating speed information, and carrying out fault diagnosis according to the information.
Further, the vehicle speed detection module is used for receiving a vehicle rotating speed signal and forwarding the vehicle rotating speed signal to the back plate.
Further, the compound sensor is mounted on an axle box or a motor and a gear box.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: in an embodiment of the present invention, a system for monitoring health status of a train running gear includes: the system comprises a host monitoring subsystem and a slave monitoring subsystem, wherein the host monitoring subsystem is installed on a train trailer, and the slave monitoring subsystem is installed on a train motor car; the host monitoring subsystem includes: the monitoring system comprises a monitoring host, a host front processor and a host composite sensor; the slave monitoring subsystem comprises: monitoring a slave, a slave front processor and a slave composite sensor; the slave composite sensor is used for acquiring state data of the running part of the motor train of the train, wherein the state data comprises temperature, vibration and impact; the slave front processor is connected with the slave composite sensor and used for receiving the state data acquired by the plurality of slave composite sensors to obtain summarized data and sending the summarized data to the monitoring slave; the monitoring slave is respectively connected with the slave front-end processor and the monitoring host and is used for receiving and storing summarized data sent by the slave front-end processor; the host composite sensor is used for acquiring state data of the train trailer running part, wherein the state data comprises temperature, vibration and impact; the host computer front processor is connected with the host computer composite sensor and used for summarizing the state data acquired by the plurality of host computer composite sensors and sending the summarized data to the monitoring host computer; the monitoring host is connected with the host front-end processor and used for receiving the state data sent by the host front-end processor. The invention can find the abnormity of the component in the early stage of the fault by monitoring the component in real time, improve the operation safety, overhaul and improve the running environment of the component in time and prolong the service life of the component. The invention can realize real-time monitoring of the working state of the running part, provides a large amount of real data for supporting operation and maintenance, and realizes early warning and fault diagnosis of the state and the track state of the running part and provides maintenance decision suggestions by adopting the technologies such as a multi-parameter diagnosis mechanism combining temperature, vibration and impact monitoring and the like. Planned maintenance is converted into state maintenance according to the real-time monitoring, diagnosing and analyzing result, operation and maintenance efficiency is improved, and real-time monitoring provides effective guarantee for safe and effective operation of the subway.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a block diagram of a health status monitoring system for a running gear of a train according to an embodiment of the present invention;
fig. 2 is a structural diagram of a monitoring host according to an embodiment of the present invention;
fig. 3 is a structural diagram of a monitoring slave according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
A detailed description of a health monitoring system for a train running part shown in fig. 1 will be given below with reference to the following embodiments, which may be as follows:
the health state monitoring system of the train running part comprises: the system comprises a master monitoring subsystem 100 and a slave monitoring subsystem 200, wherein the master monitoring subsystem 100 is installed on a train trailer, and the slave monitoring subsystem 200 is installed on a train motor car.
The host monitoring subsystem 100 includes: a monitoring host 101, a host pre-processor 102, and a host composite sensor 103.
The slave monitoring subsystem 200 includes: the slave 201, the slave pre-processor 202 and the slave combi sensor 203 are monitored.
In practical use, for subway trains, each train TC (trailer) can be provided with a running part monitoring host 101, each M/MP (motor train) is provided with a running part monitoring slave 201, each trailer is provided with 2 host front processors 102 and 8 host compound sensors 103; each motor car is provided with 4 slave front processors 202 and 16 slave compound sensors 203.
The monitoring host 101 and the monitoring slave 201 collect and process data uploaded by the host front-end processor 102 (the slave front-end processor 202), and then transmit the data to the monitoring host 101 in a centralized manner. The monitoring host 101 further completes processing, analysis, diagnosis, early warning and storage, realizes on-line automatic diagnosis, can give a diagnosis conclusion and a maintenance suggestion in real time through on-line fault diagnosis expert system software, and communicates with a vehicle network system (TCMS) through an Ethernet interface. The monitoring slave 201 of the M/MP vehicle running part transmits data to the TC vehicle running part monitoring host 101 through a train Ethernet, and the TC vehicle monitoring host 101 transmits system data to the ground intelligent analysis system through the Ethernet.
The master composite sensor 103 (slave composite sensor 203) can sense a plurality of variable parameters such as temperature, vibration, and impact of the running member, and process and transmit the variable parameters. The sensor cable of the master compound sensor 103 (slave compound sensor 203) is connected with the master pre-processor 102 (slave pre-processor 202) through a patch cord, and is connected with the monitoring master 101 (monitoring slave 201) through a cable vehicle bus after being converged. The master pre-processor 102 (slave pre-processor 202) is arranged between the monitoring master 101 (monitoring slave 201) and the master compound sensor 103 (slave compound sensor 203), and can realize transmission control of temperature, impact vibration and instructions according to instructions sent by the monitoring master 101 (monitoring slave 201), and the transmission of temperature information between the monitoring master 101 (monitoring slave 201) and the different master pre-processors 102 (slave pre-processors 202) is realized through RS485 buses according to different communication address codes.
In the master pre-processor 102 (slave pre-processor 202), only temperature information is collected. The vibration signal is transmitted in the pre-processor 102, and the vibration signal is transmitted to the vibration signal acquisition module of the master/slave machine for acquisition.
The primary function of the master pre-processor 102 (slave pre-processor 202) is temperature acquisition. The temperature information output by the master combi sensor 103 (slave combi sensor 203) is transmitted to the monitoring master 101 (monitoring slave 201) through the S connector of the master pre-processor 102 (slave pre-processor 202), temperature is acquired in the master pre-processor 102 (slave pre-processor 202), and the acquired temperature information is sent to the vibration signal acquisition module of the master/slave through the serial port.
The input, output and power supply of the master front-end processor 102 (slave front-end processor 202) share the same S connector, and for the monitoring master 101, one X11 interface needs to connect two S connectors, and each S connector needs to connect 4 master composite sensors 103. For the slave front-end processor 202, 4S connectors are required to be connected to one X11 interface, and 4 slave composite sensors 203 are required to be connected to each S connector.
The master pre-processor 102 (the slave pre-processor 202) is internally provided with a microcontroller, interfaces of a plurality of PT100 sensors are connected to the microcontroller through a temperature signal collector, and the master pre-processor 102 (the slave pre-processor 202) is connected with the composite sensor through a sensor interface so as to acquire a temperature signal of a monitored target. The microcontroller interface is connected to the vehicle bus interface through RS485 communication and is connected with the master-slave machine. An ambient temperature sensor is arranged on the host front-end processor 102 (the slave front-end processor 202), and data acquired by the ambient temperature sensor is sent to the monitoring host 101 (the monitoring slave 201) through an RS485 interface of the microcontroller.
The master compound sensor 103 (the slave compound sensor 203) can simultaneously realize the integrated sensing part for detecting, processing and transmitting a plurality of physical quantities of temperature and vibration, has high precision, stability and reliability, and can be arranged on the shaft box body, the traction motor and the gear box through a single mounting hole. The vibration and impact performance of the master composite sensor 103 (slave composite sensor 203) meets the test requirements of 3 types in GB/T21563, and the protection grade at least reaches the IP67 waterproof grade. The master compound sensor 103 (slave compound sensor 203) is divided into two types, one is installed at the axle box position, and the other is a compound sensor for connecting a motor and a gear box, and the acquired data is used as the basis for judging the states of the axle box, the wheel set and the steel rail and whether the train is derailed or not by acquiring the data of the axle box.
The temperature sensitive element integrated in the master composite sensor 103 (slave composite sensor 203) is a two-wire PT100, which can reach A-level precision, the temperature range of the PT100 which can be measured can meet-55 ℃ to +125 ℃, and the range of the vibration which can be measured is +/-200 g.
As shown in fig. 2, the monitoring host 101 includes: the system comprises a back plate 1011, a power supply module 1012, an derailment detection module 1013, a vehicle speed detection module 1014, a workshop speed/debug module 1015, a vibration signal acquisition module 1016 and a main control module 1017.
The backplane 1011 is used to connect all other modules, supply power to each module, and perform communication interaction.
The power supply module 1012 is used to supply the power supply input of the whole machine to each module and the front processor of the monitoring host 101 after isolation, voltage stabilization and conversion, and the composite sensor obtains power supply through the front processor. The power supply input is input through X1, and after the power supply board is used for isolation and voltage stabilization conversion, the power supply input supplies power to all modules of the host through the back plate 1011. Wherein the voltage of the power supply input is direct current 110V. There is an derailment warning function failure output interface X2 on the front panel of the power module 1012.
The derailment detection module 1013 is configured to obtain a vibration signal according to the state data and determine whether a derailment occurs.
The running part vehicle health monitoring device continuously acquires vibration and impact signals of the axle box in real time for analysis and diagnosis of the composite sensor arranged at the position of the axle box, rapidly gives an alarm when a vehicle derails, and continuously outputs the alarm information to an ED emergency braking system and an ATC (automatic train control) system. The derailment detection module 1012 has alarm removal and failure output functions.
The original signal of the vibration signal is transmitted to the derailment detection module 1013 through the back plate 1011, and the derailment detection module 1013 performs diagnosis and outputs the diagnosis to the EB emergency braking system and the ATC train control system through X3 and X4. X5 and X6 are a derailment alarm train bus 1 and a derailment alarm train bus 2, which transmit signals for the derailment signals of the workshop through the buses and transmit the derailment signals to the front train and the rear train through vehicle cross connectors respectively.
The vehicle speed detection module 1014 conditions the zero speed and vehicle speed signals of the X7 and X8 inputs to the reference signal. The zero speed signal input by the X7 is conditioned and then output to the back plate 1011, and the vehicle speed signal input by the X8 is conditioned and then output to the back plate 1011 (the vehicle speed signal is input as a current signal, and the current signal is converted into a voltage signal and then output to the back plate after conditioning); the zero-speed signal is effective when the high level of the zero-speed signal input (the vehicle gives DC110V signal fluctuation range bit 77V to 110V), and the vehicle speed is zero; and if the low level is 0V, the zero-speed signal is invalid, and the vehicle speed is nonzero.
The workshop rotation speed/debug module 1015 is mainly used for collecting vehicle rotation speed signals, performing preprocessing such as amplitude conversion on voltage type or current type vehicle rotation speed signals, transmitting the collected rotation speed to the main control module 1017 through the back plate 1011, sending the rotation speed to the X9 input of the monitoring slave 201 through the interface of X10, sending the rotation speed to the X9 input of the first monitoring slave 201 through the interface of X10 by the first monitoring master 101, outputting the X10 of the first monitoring slave 201 to the X9 input of the second monitoring slave 201, transmitting the rotation speed until the X9 input of the last monitoring slave 201 inputs the front vehicle rotation speed, and outputting the rotation speed of the vehicle to the last monitoring master 101 through the X10 of the last monitoring slave 201.
The vibration signal collecting module 1016 is mainly used for collecting and processing the vibration signal, converting the vibration signal into a digital signal, and then sending the digital signal to the main control module 1017 through the back plate 1011.
The original vibration signal and the temperature signal are input by the X11, enter an ADC (analog-to-digital converter) for acquisition after being conditioned by an operational amplifier, enter an FPGA (field programmable gate array) for processing by an IO isolator to complete the acquisition of the vibration signal, and then are output to the main control module 1017 in a digital form. The temperature signal is also input at the X11 port and transmitted to the main control module 1017 through the back plate 1011. Meanwhile, the vibration signal collection module 1016 sends the collected original vibration signal to the derailment detection module 1013 through the back plate 1011.
The main control module 1017 collects temperature, vibration information, zero speed and vehicle speed information, realizes real-time fault diagnosis through internal software, stores original data and diagnosis conclusion information, and sends the original data and the diagnosis conclusion information to vehicle-mounted software or ground software through a network interface X15. And the X16 is used for communicating with the slave monitoring host. The vehicle information and the control information sent by the TCMS are provided for the internal computing unit after being converted by the network port X14 or the MVB buses X12 and X13 of the TRDP protocol. The VGA, USB1, USB2 and RESET interfaces of the host main control module 1017 are only used for debugging, and do not need to be externally connected during normal operation.
The monitoring slave 201 includes: the device comprises a back plate 2011, a power supply module 2012, a derailment detection module 2013, a workshop rotation speed/debug module 2014, a vibration signal acquisition module 2014 and a main control module 2016. The functions of the modules in the monitoring slave 201 are similar to those of the monitoring master 101, and are not described herein again, it should be noted that the monitoring slave 201 is not connected to the TCMS of the train, the monitoring slave 201 does not have a vehicle speed detection module, and the monitoring slave 201 acquires the speed information of the vehicle through the workshop rotation speed/debug module 2014.
X16 of the first monitoring master machine is connected with X15 of the first monitoring slave machine, X16 of the first monitoring slave machine is connected with X15 of the second monitoring slave machine, and so on, X16 of the last monitoring slave machine is connected with X16 of the last monitoring master machine. The RESET interface on the slave master control module 2016 is only used for debugging, and does not need to be connected to the outside during normal operation.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A health status monitoring system for a running gear of a train, comprising: the system comprises a host monitoring subsystem and a slave monitoring subsystem, wherein the host monitoring subsystem is installed on a train trailer, and the slave monitoring subsystem is installed on a train motor car;
the host monitoring subsystem includes: the monitoring system comprises a monitoring host, a host front processor and a host composite sensor;
the slave monitoring subsystem comprises: monitoring a slave, a slave pre-processor and a slave compound sensor;
the slave unit composite sensor is used for collecting state data of the running part of the motor vehicle of the train, and the state data comprises temperature, vibration and impact;
the slave front processor is connected with the slave composite sensor and used for receiving the state data acquired by the plurality of slave composite sensors to obtain summarized data and sending the summarized data to the monitoring slave;
the monitoring slave is respectively connected with the slave front processor and the monitoring host and is used for receiving and caching summarized data sent by the slave front processor;
the host composite sensor is used for acquiring state data of the running part of the train trailer, wherein the state data comprises temperature, vibration and impact;
the host computer pre-processor is connected with the host computer composite sensor and is used for summarizing the state data acquired by the plurality of host computer composite sensors and sending the summarized data to the monitoring host computer;
the monitoring host is connected with the host front-end processor and used for receiving the state data sent by the host front-end processor.
2. The system of claim 1, wherein the monitoring host comprises: the device comprises a back plate, a power supply module, an off-track detection module, a vehicle speed detection module, a workshop rotating speed/debug module, a vibration signal acquisition module and a main control module.
3. The system of claim 1, wherein the monitoring slave comprises: the device comprises a back plate, a power supply module, an off-track detection module, a workshop rotating speed/debug module, a vibration signal acquisition module and a main control module.
4. The method according to any one of claims 2 or 3,
the backboard is used for supplying power to each module and carrying out communication interaction;
the power supply module is used for supplying power to other modules;
the derailment detection module is used for acquiring a vibration signal according to the state data and judging whether derailment occurs or not;
the workshop rotating speed/debug module is used for collecting vehicle rotating speed signals, preprocessing the voltage type or current type vehicle rotating speed signals and then returning the preprocessed signals to the main control module through the back plate;
the main control module is used for receiving and storing temperature information, vibration information and vehicle rotating speed information, and carrying out fault diagnosis according to the information.
5. The method of claim 2, wherein the vehicle speed detection module is configured to receive a vehicle speed signal and forward the vehicle speed signal to the backplate.
6. The method of claim 1, wherein the composite sensor is mounted to an axle housing or motor and gear housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310022192.5A CN115892111A (en) | 2023-01-06 | 2023-01-06 | Health state monitoring system for train running gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310022192.5A CN115892111A (en) | 2023-01-06 | 2023-01-06 | Health state monitoring system for train running gear |
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| Publication Number | Publication Date |
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| CN115892111A true CN115892111A (en) | 2023-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310022192.5A Pending CN115892111A (en) | 2023-01-06 | 2023-01-06 | Health state monitoring system for train running gear |
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- 2023-01-06 CN CN202310022192.5A patent/CN115892111A/en active Pending
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