Hot-axle alarming method for railway freight train and system

A technology for alarm systems and railway wagons, applied to railway car body components, railway vehicle shape measuring devices, railway auxiliary equipment, etc., can solve problems such as transportation interference, thermal axis misjudgment, and inconsistency, and reduce thermal axis false alarms, The effect of improving the quality of thermal axis alarm

Active Publication Date: 2012-02-15
LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] By analyzing the temperature rise characteristics shown in Table 1, the inventors of the present application found that there is a large difference in the temperature rise of the 25-ton axle load bearing, and the maximum average temperature rise difference between the empty vehicle and the heavy vehicle working condition is 5.298°C; The maximum average temperature rise difference is 4.293°C; the bearing type has a greater difference, the average temperature rise difference between 353130X2-2RZ and TBU150 is 10.88°C in the heavy vehicle

Method used

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  • Hot-axle alarming method for railway freight train and system
  • Hot-axle alarming method for railway freight train and system
  • Hot-axle alarming method for railway freight train and system

Examples

Experimental program
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Effect test

Embodiment 1

[0047] figure 1 It is a schematic structural diagram of a hot axle alarm system for railway freight cars according to an embodiment of the present invention. Such as figure 1 As shown, the hot axis alarm system 10 includes a receiving unit 121, a bearing type determination unit 122, a hot axis alarm threshold acquisition unit 124, and a hot axis alarm unit 127.

[0048] The receiving unit 121 is configured to receive the ambient temperature value of the monitored truck and the bearing temperature value detected and transmitted by the axle temperature detection system. Generally speaking, the receiving unit 121 will receive a large number of ambient temperature values ​​and bearing temperature values ​​periodically or irregularly transmitted by various axle temperature detection stations, and then these temperature data values ​​will be stored in the storage unit (not shown) by the hot axle alarm system )in. Optionally, the receiving unit 121 may also directly transmit to the hot...

Embodiment 2

[0082] image 3 It is a schematic structural diagram of a hot axle alarm system for railway freight cars according to another embodiment of the present invention. Such as image 3 As shown, the hot axle warning system 20 includes a receiving unit 221, a bearing type determination unit 222, a monitored truck information determination unit 223, a hot axle warning threshold acquisition unit 224, and a hot axle warning unit 227.

[0083] The bearing type determination unit 222 is used to determine the type of the bearing of the monitored truck. Bearing type determination unit 221 and figure 1 The bearing type determining unit 121 in is similar, please refer to the further description of the bearing type determining unit 121.

[0084] The receiving unit 221 is configured to receive the ambient temperature value and the bearing temperature value detected and transmitted by the axle temperature detection system. Further, the bearing detection system transmits the detected temperature dat...

Embodiment 3

[0116] According to an embodiment of the present invention, there is also provided a hot axle warning method for railway freight cars, the method including:

[0117] 11. Determine the type of bearing for monitoring trucks;

[0118] 12. Receive the current ambient temperature value and current bearing temperature value of the monitored truck detected and transmitted by the axle temperature detection system;

[0119] 13. Find the stored hot axis alarm threshold corresponding to the bearing according to the type of the bearing;

[0120] 14 Calculate the current temperature rise of the bearing according to the current ambient temperature value and the current bearing temperature value;

[0121] 15. The current temperature rise value of the bearing is compared with the hot axis alarm threshold value, and an alarm is issued when the current temperature rise value of the bearing is greater than the hot axis alarm threshold value.

[0122] Wherein, the implementation order of the above steps is ...

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PUM

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Abstract

The invention relates to a hot-axle alarming method for a railway freight train and a system. The system comprises a bearing type determining unit, a hot-axle alarming threshold value determining unit, a hot-axle alarming threshold value acquiring unit and a hot-axle alarming unit, wherein the bearing type determining unit is used for determining and monitoring a type of a bearing of the freight train; the hot-axle alarming threshold value determining unit is used for obtaining a temperature rising property of the bearing through the statistics of an ambient temperature value which is received by a receiving unit and detected and transmitted by a bearing temperature detection system and a series of temperature values of the bearing so as to determine a hot-axle alarming threshold value ofthe bearing according to a preset alarming probability and the temperature rising property of the bearing; the hot-axle alarming threshold value acquiring unit is used for finding out a stored hot-axle alarming threshold value corresponding to the bearing according to the type of the bearing; and the hot-axle alarming unit is used for issuing an alarm by comparing a temperature rising value of the bearing which is calculated according to a current ambient temperature value which is received by the receiving unit and detected and transmitted by the bearing temperature detection system with thehot-axle alarming threshold value when the temperature rising value of the bearing is more than the hot-axle alarming threshold value. By adopting the hot-axle alarming method and the system, the hot-axle alarming quality can be improved.

Description

Technical field [0001] The invention relates to the technical field of hot axle alarms for railway vehicles, and in particular to a hot axle alarm method and system for railway freight cars. Background technique [0002] Railway freight car burning and axle cutting accidents are frequent safety accidents in my country's railways, and are the main content of the safety and prevention of railway vehicles in my country. At present, the infrared axle temperature detection system can play an important role in preventing axle burning and cutting accidents, but the outstanding problem is to fulfill The rate is not high, because the false alarms and false rejections of the infrared axle temperature detection system have brought great interference to railway transportation, especially with the increasing density of railway transportation, the contradiction between safety and transportation efficiency is becoming increasingly acute. [0003] In general, for different axle loads and different ...

Claims

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Application Information

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IPC IPC(8): B61K9/06
Inventor 于卫东扈海军曾宇清
Owner LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI
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