Intelligent bogie monitoring system

Abstract

An intelligent bogie monitoring system comprises a tire pressure monitoring module, an auxiliary wheel height monitoring module, a running gear dynamic monitoring module, a data collector and a system host, and the tire pressure monitoring module, the auxiliary wheel height monitoring module and the running gear dynamic monitoring module are all in signal connection with the data collector. And the data collector is also in signal connection with the system host. According to the utility model, a plurality of groups of monitoring modules are designed to carry out omnibearing monitoring on the operation state of the bogie, so that a train operation management department can comprehensively and accurately know and analyze the operation condition of a train, and the safety and reliability of rail transit are greatly improved; a plurality of communication interfaces are designed for data transmission, so that the system is more flexible to assemble and arrange, and the communication efficiency of each component of the system is greatly improved; the reliability of the monitoring system is further enhanced through the dual-backup storage capacity of the data collector and the system host; the utility model has the advantages of strong practicability and strong popularization significance.

Description

Technical Field

[0001] The utility model relates to the technical field of train monitoring, in particular to an intelligent monitoring system for a bogie. Background Art

[0002] The bogie is one of the most important components in the structure of rail vehicles. It is a small car that can directly support the vehicle body by assembling two or more wheel sets together with a special frame. The bogie plays the role of load-bearing, traction, running and braking. It is the most critical component that determines the safety and dynamic performance of the train operation, and it is also one of the components of the train that is most prone to failure. For this reason, the status of the bogie must be monitored in real time during the operation of the train to ensure the safety and performance of the train operation. However, most of the existing monitoring systems can only monitor part of the status of the bogie, which makes it impossible for the train operation management department to fully and accurately understand and analyze the train operation status, and the reliability is far from enough. Utility Model Content

[0003] Based on this, it is necessary to provide a bogie intelligent monitoring system to address the deficiencies in the prior art.

[0004] A bogie intelligent monitoring system includes a tire pressure monitoring module, an auxiliary wheel height monitoring module, a running gear dynamic monitoring module, a data collector and a system host. The tire pressure monitoring module, the auxiliary wheel height monitoring module and the running gear dynamic monitoring module are all connected to the data collector by signal, and the data collector is also connected to the system host by signal. The tire pressure monitoring module includes a plurality of running tire pressure sensors and a horizontal tire pressure sensor. The running tire pressure sensor is installed on a transition bracket on the inner side of the running wheel, and is provided with a first tire pressure sensing unit and a second tire pressure sensing unit. The first tire pressure sensing unit and the second tire pressure sensing unit are connected to each other by signal, and the two are respectively connected to the data collector by signal. The horizontal tire pressure sensor is installed on the valve of the horizontal wheel, and is connected to the data collector by wireless signal.

[0005] Furthermore, the auxiliary wheel height monitoring module includes an ultrasonic sensor and an analysis unit. The ultrasonic sensor is installed at the end of the bogie and is located on one side of the auxiliary wheel. The analysis unit is respectively connected to the ultrasonic sensor and the data collector signal.

[0006] Furthermore, the running gear dynamic monitoring module includes a plurality of temperature-vibration composite sensors, which are respectively installed on the running wheel axle, the outside of the motor and the outside of the gear box. The temperature-vibration composite sensor includes an acceleration sensing unit and a temperature sensing unit, which are respectively connected to the data acquisition device signal.

[0007] Furthermore, the temperature-vibration composite sensor installed on the running wheel axle is designed in a ring structure.

[0008] Furthermore, the data collector includes a data collection unit, a decoding unit and a first storage unit, and the data collector is also provided with a plurality of 433MHz wireless communication interfaces, RS485 communication interfaces, analog signal input interfaces and Ethernet communication interfaces. The data collection unit is respectively connected to the decoding unit and the plurality of 433MHz wireless communication interfaces, RS485 communication interfaces and analog signal input interfaces, the decoding unit is also connected to the first storage unit, and the first storage unit is also connected to the Ethernet communication interface.

[0009] Furthermore, some of the 433MHz wireless communication interfaces are also respectively connected to the first tire pressure sensor unit, the second tire pressure sensor unit and the horizontal tire pressure sensor wireless signals, some of the RS485 communication interfaces are also respectively connected to the analysis unit signals, some of the analog signal input interfaces are also respectively connected to the acceleration sensor units and the temperature sensor unit signals, and the Ethernet communication interface is also connected to the system host signal.

[0010] Furthermore, the system host includes an intelligent processing unit and a second storage unit, the intelligent processing unit is connected to the Ethernet communication interface signal on the data collector, and the second storage unit is connected to the intelligent processing unit signal.

[0011] Furthermore, the bogie intelligent monitoring system also includes a TCMS (train control and management system), and the TCMS is signal-connected to the intelligent processing unit.

[0012] To sum up, the beneficial effects of the intelligent monitoring system for bogies of the utility model are: by designing multiple groups of monitoring modules to carry out all-round monitoring of the operating status of the bogies, the train operation management department can fully and accurately understand and analyze the train operation conditions, greatly improving the safety and reliability of rail transit; designing multiple communication interfaces for data transmission makes the assembly and layout of the system more flexible, and at the same time the communication efficiency of each component of the system is greatly improved; the dual backup storage capacity of the data collector and the system host can greatly reduce problems such as frame loss during data transmission, further enhancing the reliability of the monitoring system; the system host adopts an intelligent, automated, and multifunctional intelligent processing unit to provide all-round safety monitoring, status assessment, fault warning, maintenance guidance, health management services and support for the dynamics of the vehicle running gear and wheels and rails, reducing the maintenance workload and cost of straddle-type monorail vehicles and improving the vehicle utilization efficiency; the utility model has strong practicality and strong promotion significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1The utility model is a functional structure diagram of a bogie intelligent monitoring system. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0015] like Figure 1 As shown, the utility model provides a bogie intelligent monitoring system 100, which includes a tire pressure monitoring module 10, an auxiliary wheel height monitoring module 20, a running gear dynamic monitoring module 30, a data collector 40 and a system host 50, wherein the tire pressure monitoring module 10, the auxiliary wheel height monitoring module 20 and the running gear dynamic monitoring module 30 are all connected to the data collector 40 by signal, and the data collector 40 is also connected to the system host 50 by signal.

[0016] The tire pressure monitoring module 10 includes a plurality of running tire pressure sensors 11 and horizontal tire pressure sensors 12. The running tire pressure sensor 11 is mounted on a transition bracket on the inner side of the running wheel, and is provided with a first tire pressure sensing unit 111 and a second tire pressure sensing unit 112. The first tire pressure sensing unit 111 and the second tire pressure sensing unit 112 are connected to each other by signal, and are respectively connected to the data collector 40 by signal. The horizontal tire pressure sensor 12 is mounted on the valve of the horizontal wheel, and is connected to the data collector 40 by wireless signal.

[0017] The running tire pressure sensor 11 adopts a built-in installation design, and monitors the tire pressure, temperature and other related data in real time through the sensing chip inside the sensor. The two tire pressure sensing units of each running tire pressure sensor 11 are independent of each other, forming a dual backup for a single running tire pressure monitoring. The first tire pressure sensing unit 111 usually performs the monitoring work, sampling the tire pressure value, temperature and sensor battery voltage every 4 seconds. When the tire pressure and temperature are normal, the first tire pressure sensing unit 111 uploads data every 2 minutes; when abnormal data is detected, the first tire pressure sensing unit 111 will immediately and actively upload the data, and activate another sensor to perform dual monitoring of the air pressure data. The sensor structure design of the dual sensing unit can not only effectively avoid the problem of abnormal sensor offline, but also the dual sensing units can work together to check the tire status twice, ensuring the accuracy of the monitoring data.

[0018] The horizontal tire pressure sensor 12 adopts an external installation structure, which is connected to the tire pressure value through the tire valve to monitor the tire pressure, temperature and other related data in real time. The sensor measures the tire pressure and temperature data every 4 seconds and compares and analyzes the historical data. When the tire has a high or low pressure or high temperature alarm, the horizontal tire pressure sensor 12 will immediately encode the pressure, temperature and other related data and transmit it to the data collector 40 through wireless communication and further hand it over to the system host 50 for analysis and judgment; when the tire pressure is within the normal range, the horizontal tire pressure sensor 12 uploads data every 2 minutes. The externally installed horizontal tire pressure sensor 12 is easy to disassemble and maintain, and the wireless communication method makes its installation and layout unconstrained and more flexible.

[0019] The auxiliary wheel height monitoring module 20 includes an ultrasonic sensor 21 and an analysis unit 22. The ultrasonic sensor 21 is installed at the end of the bogie and located on one side of the auxiliary wheel. The analysis unit 22 is respectively connected to the ultrasonic sensor 21 and the data collector 40. The ultrasonic sensor 21 can detect the vertical distance between the auxiliary wheel and the track plane in real time, and convert the detection data into a digital signal after calculation by the analysis unit 22 and then transmit it to the data collector 40. The analysis unit 22 integrated in the module can effectively solve the interference problem of long-distance transmission of analog signals.

[0020] The running gear dynamic monitoring module 30 includes a plurality of temperature-vibration composite sensors 31, and the plurality of temperature-vibration composite sensors 31 are respectively installed on the running wheel axle, the outside of the motor and the outside of the gear box. The temperature-vibration composite sensor 31 includes an acceleration sensing unit 311 and a temperature sensing unit 312, and the acceleration sensing unit 311 and the temperature sensing unit 312 are respectively connected to the data acquisition device 40 by signal. Specifically, in the present embodiment, the temperature-vibration composite sensor 31 installed on the running wheel axle is designed in a ring structure. The temperature-vibration composite sensor 31 can simultaneously realize the detection, processing and transmission of multiple physical quantities such as temperature, vibration and impact, so that the system can monitor the running gear more comprehensively and thoroughly, laying a solid foundation for the subsequent intelligent operation and maintenance.

[0021] The data collector 40 includes a data collection unit 41, a decoding unit 42 and a first storage unit 43, and the data collector 40 is also provided with a plurality of 433MHz wireless communication interfaces 44, an RS485 communication interface 45, an analog signal input interface 46 and an Ethernet communication interface 47. The data collection unit 41 is signal-connected to the decoding unit 42 and the plurality of 433MHz wireless communication interfaces 44, the RS485 communication interface 45 and the analog signal input interface 46 respectively, the decoding unit 42 is also signal-connected to the first storage unit 43, and the first storage unit 43 is also signal-connected to the Ethernet communication interface 47.

[0022] Some of the 433MHz wireless communication interfaces 44 are also wirelessly connected to the first tire pressure sensor unit 111, the second tire pressure sensor unit 112 and the horizontal tire pressure sensor 12 respectively, some of the RS485 communication interfaces 45 are also signal-connected to some analysis units 22 respectively, some of the analog signal input interfaces 46 are also signal-connected to some acceleration sensor units 311 and the temperature sensor unit 312 respectively, and the Ethernet communication interface 47 is also signal-connected to the system host 50.

[0023] The data collector 40 has the functions of wireless tire pressure reception and dynamic vibration signal and temperature signal collection, and can realize the sensor network management of the controlled area, and complete the signal preprocessing, temporary storage and transmission. When the data acquisition unit 41 receives the wireless signal of the tire pressure sensor or the height signal of the auxiliary wheel or the temperature and vibration signal of the running part, it is handed over to the decoding unit 42 for data decryption and stores the data in the first storage unit 43. The system host 50 sends a query instruction to read data to the first storage unit 43 once every 40ms. After receiving the query instruction from the system host 50, the first storage unit 43 will send the data to the system host 50 for analysis and confirmation via Ethernet communication. The data collector 40 adopts a transmission backup structural design. While receiving the data signal online, it decodes, stores it and uploads it to the system host 50, which effectively avoids the problem of data frame loss and false reporting.

[0024] The system host 50 includes an intelligent processing unit 51 and a second storage unit 52. The intelligent processing unit 51 is connected to the Ethernet communication interface 47 on the data collector 40 by signal, and the second storage unit 52 is connected to the intelligent processing unit 51 by signal. The intelligent processing unit 51 has multiple functions, including processing, collecting, and diagnosing the signals transmitted from the sensor network, realizing online automatic diagnosis of the bogie status, and giving the diagnosis conclusion in real time. The second storage unit 52 can classify and store all the diagnosis conclusions and original sample data to form monitoring big data for trend analysis, providing an effective reference for the optimization and adjustment of the train.

[0025] The bogie intelligent monitoring system 100 also includes a TCMS 60 (train control and management system), which is signal-connected to the intelligent processing unit 51. The monitoring function is combined with the train control and management function, which makes it easier for train drivers to control the running status of the train in real time, so as to promptly discover and respond to abnormal conditions of the train bogie.

[0026] To sum up, the beneficial effects of the intelligent monitoring system 100 for a bogie of the utility model are: by designing multiple groups of monitoring modules to carry out all-round monitoring of the operating status of the bogie, the train operation management department can fully and accurately understand and analyze the train operation status, greatly improving the safety and reliability of rail transit; designing multiple communication interfaces for data transmission makes the assembly and layout of the system more flexible, and at the same time the communication efficiency of each component of the system is greatly improved; the dual backup storage capacity of the data collector 40 and the system host 50 can greatly reduce the problems such as frame loss during data transmission, and further enhance the reliability of the monitoring system; the system host 50 adopts an intelligent, automated, and multifunctional intelligent processing unit 51 to provide all-round safety monitoring, status assessment, fault warning, maintenance guidance, health management services and support for the dynamics of the vehicle running gear and wheels and rails, reducing the maintenance workload and cost of straddle-type monorail vehicles and improving the vehicle utilization efficiency; the utility model has strong practicality and strong promotion significance.

[0027] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A bogie intelligent monitoring system, characterized in that: It includes a tire pressure monitoring module, an auxiliary wheel height monitoring module, a running gear dynamic monitoring module, a data collector and a system host. The tire pressure monitoring module, the auxiliary wheel height monitoring module and the running gear dynamic monitoring module are all connected to the data collector signal, and the data collector is also connected to the system host signal; the tire pressure monitoring module includes a plurality of running tire pressure sensors and horizontal tire pressure sensors; the running tire pressure sensor is installed on a transition bracket on the inner side of the running wheel, and is provided with a first tire pressure sensing unit and a second tire pressure sensing unit, the first tire pressure sensing unit and the second tire pressure sensing unit are connected to each other by signal, and the two are respectively connected to the data collector signal; the horizontal tire pressure sensor is installed on the valve mouth of the horizontal wheel, and is connected to the data collector wirelessly by signal.

2. The bogie intelligent monitoring system according to claim 1, characterized in that: The auxiliary wheel height monitoring module includes an ultrasonic sensor and an analysis unit. The ultrasonic sensor is installed at the end of the bogie and is located on one side of the auxiliary wheel. The analysis unit is respectively connected to the ultrasonic sensor and the data collector signal.

3. The bogie intelligent monitoring system according to claim 2, characterized in that: The running gear dynamic monitoring module includes a plurality of temperature-vibration composite sensors, which are respectively installed on the running wheel axle, the outside of the motor and the outside of the gear box; the temperature-vibration composite sensor includes an acceleration sensing unit and a temperature sensing unit, which are respectively connected to the data acquisition device signal.

4. The bogie intelligent monitoring system according to claim 3, characterized in that: The temperature-vibration composite sensor installed on the axle of the running wheel is designed in a ring structure.

5. The bogie intelligent monitoring system according to claim 3, characterized in that: The data acquisition device includes a data acquisition unit, a decoding unit and a first storage unit, and is also provided with a plurality of 433MHz wireless communication interfaces, RS485 communication interfaces, analog signal input interfaces and Ethernet communication interfaces; the data acquisition unit is respectively connected to the decoding unit and the plurality of 433MHz wireless communication interfaces, RS485 communication interfaces, and analog signal input interfaces, the decoding unit is also connected to the first storage unit, and the first storage unit is also connected to the Ethernet communication interface.

6. The bogie intelligent monitoring system according to claim 5, characterized in that: Some of the 433MHz wireless communication interfaces are also respectively connected to the first tire pressure sensor unit, the second tire pressure sensor unit and the horizontal tire pressure sensor wireless signals, some of the RS485 communication interfaces are also respectively connected to the analysis unit signals, some of the analog signal input interfaces are also respectively connected to the acceleration sensor units and the temperature sensor unit signals, and the Ethernet communication interface is also connected to the system host signal.

7. The bogie intelligent monitoring system according to claim 5, characterized in that: The system host comprises an intelligent processing unit and a second storage unit. The intelligent processing unit is connected to the Ethernet communication interface signal on the data collector, and the second storage unit is connected to the intelligent processing unit signal.

8. The bogie intelligent monitoring system according to claim 7, characterized in that: The system also includes a TCMS, wherein the TCMS is signal-connected to the intelligent processing unit.

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