WO2019024185A1 - 一种铁路客车轴承温度检测方法及数字/模拟集成式温度传感器 - Google Patents

一种铁路客车轴承温度检测方法及数字/模拟集成式温度传感器 Download PDF

Info

Publication number
WO2019024185A1
WO2019024185A1 PCT/CN2017/101805 CN2017101805W WO2019024185A1 WO 2019024185 A1 WO2019024185 A1 WO 2019024185A1 CN 2017101805 W CN2017101805 W CN 2017101805W WO 2019024185 A1 WO2019024185 A1 WO 2019024185A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
digital
sensor
fault
analog
Prior art date
Application number
PCT/CN2017/101805
Other languages
English (en)
French (fr)
Inventor
刘文平
陈立
郁兆旺
胡晓春
姜艳林
朱金波
刘桂强
Original Assignee
中车南京浦镇车辆有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中车南京浦镇车辆有限公司 filed Critical 中车南京浦镇车辆有限公司
Publication of WO2019024185A1 publication Critical patent/WO2019024185A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/04—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
    • B61K9/06—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault by detecting or indicating heat radiation from overheated axles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2219/00—Thermometers with dedicated analog to digital converters

Definitions

  • the invention relates to a shaft temperature detecting technology for improving the reliability of a railway passenger car bearing temperature detection, and belongs to the field of railway passenger car safety diagnosis.
  • shaft temperature system a centralized shaft temperature alarm system
  • the shaft temperature system currently in use has problems such as unstable operation and unreliable temperature measurement.
  • the problem is mainly reflected in the alarm false alarm, sensor data jump, open short circuit fault and so on.
  • the temperature sensor used is basically a digital temperature sensor (DS18B20).
  • the temperature sensor includes a digital temperature sensor and an analog temperature sensor, but both of the temperature detecting sensor technologies have their own shortcomings and shortcomings.
  • the installation of the temperature sensor is limited by the structure of the shaft end of the vehicle bogie and the space environment. It may cause water ingress or poor contact due to mechanical damage and poor sealing, which may eventually cause false alarms and malfunctions.
  • the main drawback of the digital sensor is that the temperature measurement range is narrow, especially the upper temperature limit is not high enough, only -55 °C ⁇ +125 °C, so there is a certain risk of under-report when the detection temperature exceeds 125 °C.
  • the analog sensor has a wide temperature range and can reach 160°C or above, the anti-interference performance is not as good as that of the digital sensor, and because the platinum resistance temperature measurement converts the resistance value into an electrical signal transmission, it is also sensitive to the contact resistance and cannot be completely solved. Anti-interference technology problems, so there is still a certain risk of leakage or false alarm.
  • the present invention is directed to the above technical problem, and proposes a railway passenger car bearing temperature detecting method and a digital/analog integrated vehicle axle temperature detecting sensor, and the method for performing the shaft temperature detection has higher reliability than the previous single type sensor detecting method.
  • a method for detecting the bearing temperature of a railway passenger car wherein the sensor probe integrates a digital and analog temperature measuring chip, and the two temperature measuring chips simultaneously detect the temperature of the axle box and send the temperature signal to the detecting host through the transmission line, and the detecting host sequentially receives two channels.
  • the temperature signal is used to independently judge the two signals.
  • the specific judgment process is not immediately adopted when the detection host obtains a new temperature measurement result, but is first subjected to fault filtering and hopping filtering to determine whether the detected temperature will be detected. Incorporate adoption; then select the two temperatures according to the temperature selection conditions, and finally select one temperature for display and analysis;
  • a high temperature threshold Tg of the digital temperature sensor is set.
  • the detection host preferentially adopts the digital sensor detection. temperature;
  • the temperature detected by the digital sensor is >Tg, then the digital temperature is no longer reliable, then the temperature detected by the analog sensor is selected first; when the temperature detected by the digital sensor exceeds the upper limit of the temperature measurement, the detection host only adopts the simulation. Temperature detected by the sensor;
  • the detecting host detects that the finally adopted temperature is higher than the alarm threshold, an audible and visual alarm is issued, and the alarm signal is sent to other hosts through the network communication to realize the networked alarm.
  • the fault filtering firstly setting a fault count upper limit value, when the fault temperature is read for the first time, maintaining the previous temperature, only increasing the fault count; when the fault count reaches the fault count upper limit value, confirming Is a true and stable fault and is incorporated into adoption;
  • Hopping filter set a jump count upper limit value and a jump threshold; each read temperature is compared with the previous temperature first, and if the difference reaches the jump threshold, the previous temperature is maintained. Only increase the hop count; when the hop count reaches the upper limit of the hop count, it is confirmed that it is a true stable temperature and is included.
  • the digital temperature sensor and the analog temperature sensor When the digital temperature sensor and the analog temperature sensor have any one of the temperature measurement faults, it is defined as a recessive fault.
  • the host can display the axial position of the recessive fault in the liquid crystal. On the screen, prompt the relevant personnel to maintain in time.
  • a digital/analog integrated temperature sensor for use in a method for detecting a bearing temperature of a railway passenger car according to claim 1, comprising a probe module, wherein the probe module integrates a digital temperature sensor, an analog temperature sensor and respective peripheral circuits, one end of the probe module a screw for connecting to the axle box;
  • a fastening bolt for connecting the screw of the probe module and the axle box to achieve relative rotation and sealing between the probe module and the fastening bolt
  • a first annular groove is disposed on the rod wall of the screw, the fastening bolt has an inner hole, and the inner hole hole wall is provided with a second annular groove, the first annular groove and the second annular concave
  • the slots are mated to each other to form a seal ring groove that receives the sealing gasket.
  • the sealing gasket is an elastic sealing gasket.
  • digital-to-analog sensor redundancy digital temperature sensor (DS18B20 or its upgraded model) and analog temperature sensor (PT1,000) is integrated in the same probe, but the two parts are completely independent, and any component failure will not affect the normal operation of other parts.
  • the temperature range is increased to -55 ° C ⁇ +150 ° C.
  • temperature measurement hardware redundancy using the same completely independent temperature measurement module, separately collect digital and analog temperature, and then summarize it to the main CPU.
  • the temperature measurement module performs preliminary processing on the original temperature, filtering the overflow value, the illegal value, the instantaneous jump, the fault, and the like.
  • the main CPU then performs the final processing on the digital mode temperature. Because digital sensors are superior to analog in terms of anti-jamming performance (usually unable to measure temperature or communicate under strong interference, often cannot read temperature, or output specific values, it is easier to distinguish), so if the digital temperature is normal, and ⁇ 120 °C (close to the upper limit of the digital temperature measurement, which is easy to cause hidden dangers), the temperature measuring device preferentially selects the digital temperature. If the digital temperature is abnormal, or >120 °C, the simulated temperature is preferred.
  • the digital analog integrated vehicle axle temperature detection system consists of a test host, sensors and transmission lines.
  • the shaft temperature detection system mounts the sensor on the axle box, and the detection host is installed in the cabin electrical cabinet, and the two are electrically connected through the transmission line.
  • Figure 1 is a schematic diagram showing the structure of a digital temperature sensor and an analog temperature sensor integrated in the probe;
  • Figure 2 is a schematic diagram of hardware redundancy for temperature measurement
  • FIG. 3 is a functional block diagram of a temperature detecting method of the present invention.
  • FIG. 4 is a schematic structural view of an integrated temperature detecting sensor of the present invention.
  • Figure 5 is a schematic view of the structure of the probe
  • Figure 6 is a schematic view showing the structure of the fastening bolt
  • Figure 7 is a schematic view showing the connection structure between the fastening bolt and the probe
  • a temperature detecting method when the train is running, the axle box generates friction heat, and the heat is transmitted to the sensor probe.
  • the sensor probe integrates a digital and analog temperature measuring chip, and the two temperature measuring chips simultaneously detect the temperature of the axle box and pass the temperature signal.
  • the transmission line is sent to the detection host, and the detection host sequentially receives two temperature signals, and the two signals are independently judged and summed, and the two channels are intelligently selected according to the temperature selection condition, and finally the temperature is selected for display, analysis and other subsequent processing. ;
  • Fault filtering first set a “fault count upper limit”; when the fault is read for the first time, the previous temperature is maintained, only the fault count is increased; when the count reaches the upper limit, it is confirmed that it is a true stable fault and is included. use.
  • Hopping filtering The method is similar to “fault filtering”. In addition to setting a “jump count upper limit”, you also need to set a “jump threshold”; each time the temperature is read, compare it with the previous temperature first. When the difference reaches the “jump threshold”, the previous temperature is maintained, and only the jump count is increased; when the count reaches the upper limit, it is confirmed that it is a true stable temperature and is included.
  • the principle of temperature selection is to fully utilize and combine the advantages of digital and analog temperature sensors, that is, the digital temperature sensor has strong anti-interference ability at normal temperature, while the analog temperature sensor has high temperature measurement upper limit.
  • the digital and analog temperature sensor When the digital and analog temperature sensor has any one of the temperature measurement faults, it is defined as “hidden fault”, which does not affect the continuous temperature measurement and alarm diagnosis, and the detection host can display the axial position of the hidden fault on the LCD screen. It prompts relevant personnel to maintain in time, and realizes that it does not affect the operation, and can detect hidden dangers in time, and troubleshoot, thereby improving safety.
  • the detection host When the detection host detects that the final temperature is higher than the alarm threshold, an audible and visual alarm is issued, and the alarm signal is sent to other hosts through the network communication to realize the network alarm.
  • the digital analog integrated vehicle axle temperature detection system has functions such as shaft temperature detection, sound and light alarm, network communication, data recording, data access, and data download.
  • the present invention also discloses a digital/analog integrated vehicle axle temperature detecting sensor, which comprises a probe module, which integrates a digital temperature sensor, an analog temperature sensor and respective peripheral circuits, and a probe.
  • a probe module which integrates a digital temperature sensor, an analog temperature sensor and respective peripheral circuits, and a probe.
  • One end of the module is provided with a screw for connecting with the axle box;
  • a fastening bolt is used for connecting the screw of the probe module and the axle box to realize relative rotation and sealing between the probe module and the fastening bolt;
  • the rod wall is provided with a first annular groove
  • the fastening bolt has an inner hole
  • the inner hole hole wall is provided with a second annular groove
  • the first annular groove and the second annular groove are mutually coupled to form a seal ring groove that receives the sealing gasket.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

一种铁路客车轴承温度检测方法，传感器探头（1）内部集成数字式和模拟式测温芯片，两种测温芯片同时探测轴箱温度并将温度信号通过传输线路发送至检测主机，检测主机顺序接收两路温度信号，对两路信号进行独立判断。然后根据选温条件对两路温度进行择选，最终选择一路温度进行显示、分析。利用该方法进行轴温检测相对于过往单一类型传感器检测方法来说具有可靠性更高的有益效果。还公开了一种用于该方法的数字/模拟集成式温度传感器。

Description

一种铁路客车轴承温度检测方法及数字/模拟集成式温度传感器 技术领域
本发明涉及一种提高铁路客车轴承温度检测可靠性的轴温检测技术，属于铁路客车安全诊断领域。
背景技术
目前铁路客运列车都配备了集中式轴温报警***(以下简称为“轴温***”)，从轴温***建立铁路标准以来已在客运列车上运行二十多年，为避免热轴事故、保障铁路运营安全发挥了重要的作用。
但是，目前在用的轴温***存在运行不稳定、测温不可靠等问题。问题主要体现在报警器误报警、传感器数据跳变、开短路故障等。据统计，2016年1～8月全路轴温***每月报警及故障次数平均达四千余次，其中使用的测温传感器基本上是数字型温度传感器(DS18B20)。
目前温度传感器包括数字温度传感器和模拟型温度传感器，但这2种温度检测传感器技术均有自身的缺点与不足。
温度传感器安装方面受车辆转向架轴端结构、空间环境的限制，可能由于因机械损伤、密封性下降导致进水或接触不良，最终引起误报警和故障。
数字传感器(DS18B20)主要缺陷是测温范围窄，尤其是测温上限不够高，只有﹣55℃～﹢125℃，所以当检测温度超过125℃时存在一定的漏报风险。
模拟传感器虽然测温范围宽，能达到160℃以上，但抗干扰性能不如数字传感器，而且因为铂电阻测温是将电阻值变化转换成电信号传输，对接触电阻也很敏感，也不能彻底解决抗干扰技术难题，因此仍然存在一定的漏或误报警风险。
发明内容
本发明针对上述技术问题，提出一种铁路客车轴承温度检测方法以及数字/模拟集成式车辆轴温检测传感器，利用该方法进行轴温检测相对于过往单一类型传感器检测方法来说具有可靠性更高的有益效果。
为了实现上述技术目的，本发明采用如下具体技术方案：
一种铁路客车轴承温度检测方法，传感器探头内部集成数字式和模拟式测温芯片，两种测温芯片同时探测轴箱温度并将温度信号通过传输线路发送至检测主机，检测主机顺序接收两路 温度信号，对两路信号进行独立判断，具体判断过程是当检测主机获得一个新的测温结果时，并不立即采用，而是先经过故障过滤和跳变过滤以判断是否将检测到的温度纳入采用；然后根据选温条件对两路温度进行择选，最终选择一路温度进行显示、分析；
所述选温条件，首先设置一个数字温度传感器的高温阈值Tg，当数字式传感器、模拟式传感器均测温正常时，若数字式传感器检测的温度≤Tg，则检测主机优先采纳数字式传感器检测的温度；
若数字式传感器检测的温度＞Tg，此时认为数字温度已不再可靠，则优先选取模拟式传感器检测的温度；当数字式传感器检测的温度超出其测温上限时，则检测主机只采纳模拟式传感器检测的温度；
当检测主机探测到最终采纳的温度高于报警阈值时，则发出声光报警，并将报警信号通过联网通信的方式发送至其它主机，实现联网报警。
所述故障过滤：首先设置一个故障计数上限值，当第一次读取到故障温度时，维持采用之前的温度，仅增加故障计数；当故障计数达到所述故障计数上限值时，确认是一个真实稳定的故障，并纳入采用；
跳变过滤：设置一个跳变计数上限值、以及一个跳变阈值；每一次读取到的温度，先与上一次的温度比较，若差值达到跳变阈值，则维持采用之前的温度，仅增加跳变计数；当跳变计数达到所述跳变计数上限值时，确认是一个真实稳定的温度，并纳入采用。
当数字式温度传感器、模拟式温度传感器有任意一路测温故障时，定义为隐性故障，此时既不影响继续测温与报警诊断，同时检测主机能够将隐性故障的轴位显示在液晶屏上，提示相关人员及时维护。
一种用于权利要求1所述铁路客车轴承温度检测方法的数字/模拟集成式温度传感器，包括探头模块，所述探头模块集成了数字温度传感器、模拟温度传感器及各自***电路，探头模块的一端设有用于与轴箱连接的螺杆；
一紧固螺栓，用于将探头模块的螺杆与轴箱之间连接以实现探头模块与紧固螺栓之间相对旋转并密封；
所述螺杆的杆壁上设有第一环形凹槽，所述紧固螺栓上具有内孔，内孔孔壁上设有第二环形凹槽，所述第一环形凹槽和第二环形凹槽相互配合连接以形成容纳密封垫圈的密封环槽。
所述密封垫圈为弹性密封垫圈。
本发明的有益效果：
第一、数模传感器冗余：将数字温度传感器(DS18B20或其升级型号)与模拟温度传感器 (PT1,000)集成在同一个探头内，但两部分完全独立，任意部件故障都不会影响其他部分正常工作。测温范围提升至﹣55℃～﹢150℃。
第二、测温硬件冗余：采用同样完全独立的测温模块，分别采集数字、模拟温度，再汇总给主CPU。
第三、由测温模块对原始温度进行初步处理，过滤溢出值、非法值、瞬间的跳变、故障等。再由主CPU对数模温度进行最终处理。由于数字传感器在抗干扰性能方面优于模拟(通常在强干扰下无法测温或通信时，往往读不出温度，或输出特定值，更容易区分)，所以若数字温度为正常，且≤120℃(接近数字测温上限，容易产生隐患)时，则测温设备优先选取数字温度。若数字温度异常，或＞120℃时，则优先选取模拟温度。任意测温单元故障，则额外输出隐性故障标识，提示及时排查，以免影响正常运营。数字模拟集成式车辆轴温检测***由检测主机、传感器和传输线路组成。轴温检测***将传感器安装在轴箱上，检测主机安装在车厢电器柜内，两者通过传输线路实现电气连接。
附图说明
图1为集成于探头内的数字温度传感器和模拟温度传感器结构示意图；
图2为测温硬件冗余示意；
图3为本发明温度检测方法的功能框图；
图4为本发明集成式温度检测传感器的结构示意图；
图5为探头结构示意图；
图6为紧固螺栓结构示意图；
图7为紧固螺栓与探头之间连接结构示意图；
其中，1为探头；2为护套；3为护线管；4为线缆；5为管状端子；6为密封垫圈。
具体实施方式
一种温度检测方法，当列车运行时轴箱产生摩擦热，热量传导至传感器探头，传感器探头内部集成数字式和模拟式测温芯片，两种测温芯片同时探测轴箱温度并将温度信号通过传输线路发送至检测主机，检测主机顺序接收两路温度信号，对两路信号进行独立判断后汇总，根据选温条件对两路温度进行智能择选，最终选择一路温度进行显示、分析等后续处理；
①温度的独立判断：当检测主机获得一个新的测温结果(温度或故障)时，并不应该立即采用。因为轴温***装车运营后，环境的复杂与变化，会对轴温***造成不同程度的影响与干扰。现象例如：偶尔的测温故障、温度跳变等。针对这些干扰，除了硬件方面的优化设计， 软件方面也需要适当的判断处理，例如：故障过滤、跳变过滤等，这些处理主要基于相同通道之前读取到的温度。
故障过滤：首先设置一个“故障计数上限”；当第一次读取到故障时，维持采用之前的温度，仅增加故障计数；当计数达到上限时，才确认是一个真实稳定的故障，并纳入采用。
跳变过滤：方法与“故障过滤”类似，除了设置一个“跳变计数上限”外，还需要设置一个“跳变阈值”；每一次读取到的温度，先与上一次的温度比较，若差值达到“跳变阈值”，则维持采用之前的温度，仅增加跳变计数；当计数达到上限时，才确认是一个真实稳定的温度，并纳入采用。
值得注意的是：上述“上限”、“阈值”，需要根据环境、需求以及经验合理设置。设置值越高，最终温度则显得越平稳，相反的，测温的响应速度显得越慢；极端情况下，甚至造成安全隐患。
②温度汇总与选择
选温的原则，是充分发挥并结合数字、模拟温度传感器各自的优势，即数字温度传感器常温下抗干扰能力强，而模拟温度传感器测温上限高。
所以首先设置一个数字温度传感器的“高温阈值Tg(根据经验取值120℃)”。当数字、模拟均测温正常时，若数字温度≤Tg，优先选取；若数字温度＞Tg，此时认为数字温度已不再可靠，则优先选取模拟温度；当数字温度超出其测温上限时，则只选取模拟温度。
当数字、模拟温度传感器有任意一路测温故障时，定义为“隐性故障”，此时既不影响继续测温与报警诊断，同时检测主机能够将隐性故障的轴位显示在液晶屏上，提示相关人员及时维护，实现了既不影响运营，又能够及时发现隐患，排查故障，从而提高安全性。
当检测主机探测到最终温度高于报警阈值时，则发出声光报警，并将报警信号通过联网通信的方式发送至其它主机，实现联网报警。
数字模拟集成式车辆轴温检测***具有轴温检测、声光报警、联网通信、数据记录、数据调阅、数据下载等功能。
如图4～图7所示，本发明还公开了一种数字/模拟集成式车辆轴温检测传感器，包括探头模块，所述探头模块集成了数字温度传感器、模拟温度传感器及各自***电路，探头模块的一端设有用于与轴箱连接的螺杆；一紧固螺栓，用于将探头模块的螺杆与轴箱之间连接以实现探头模块与紧固螺栓之间相对旋转并密封；所述螺杆的杆壁上设有第一环形凹槽，所述紧固螺栓上具有内孔，内孔孔壁上设有第二环形凹槽，所述第一环形凹槽和第二环形凹槽相互配合连接以形成容纳密封垫圈的密封环槽。
当安装探头时，其引出线不会随探头的紧固螺栓转动。防止线缆跟转后受力破损或拉伤内部测温元件，并且便于安装维护。

Claims (5)

  1. 一种铁路客车轴承温度检测方法，其特征在于，传感器探头内部集成数字式和模拟式测温芯片，两种测温芯片同时探测轴箱温度并将温度信号通过传输线路发送至检测主机，检测主机顺序接收两路温度信号，对两路信号进行独立判断，具体判断过程是当检测主机获得一个新的测温结果时，并不立即采用，而是先经过故障过滤和跳变过滤以判断是否将检测到的温度纳入采用；然后根据选温条件对两路温度进行择选，最终选择一路温度进行显示、分析；所述选温条件，首先设置一个数字温度传感器的高温阈值Tg，当数字式传感器、模拟式传感器均测温正常时，若数字式传感器检测的温度≤Tg，则检测主机优先采纳数字式传感器检测的温度；
    若数字式传感器检测的温度＞Tg，此时认为数字温度已不再可靠，则优先选取模拟式传感器检测的温度；当数字式传感器检测的温度超出其测温上限时，则检测主机只采纳模拟式传感器检测的温度；
    当检测主机探测到最终采纳的温度高于报警阈值时，则发出声光报警，并将报警信号通过联网通信的方式发送至其它主机，实现联网报警。
  2. 根据权利要求1所述的铁路客车轴承温度检测方法，其特征在于，所述故障过滤：首先设置一个故障计数上限值，当第一次读取到故障温度时，维持采用之前的温度，仅增加故障计数；当故障计数达到所述故障计数上限值时，确认是一个真实稳定的故障，并纳入采用；跳变过滤：设置一个跳变计数上限值、以及一个跳变阈值；每一次读取到的温度，先与上一次的温度比较，若差值达到跳变阈值，则维持采用之前的温度，仅增加跳变计数；当跳变计数达到所述跳变计数上限值时，确认是一个真实稳定的温度，并纳入采用。
  3. 根据权利要求1所述的铁路客车轴承温度检测方法，其特征在于，当数字式温度传感器、模拟式温度传感器有任意一路测温故障时，定义为隐性故障，此时既不影响继续测温与报警诊断，同时检测主机能够将隐性故障的轴位显示在液晶屏上，提示相关人员及时维护。
  4. 一种用于权利要求1所述铁路客车轴承温度检测方法的数字/模拟集成式温度传感器，其特征在于，包括探头模块，所述探头模块集成了数字温度传感器、模拟温度传感器及各自***电路，探头模块的一端设有用于与轴箱连接的螺杆；
    一紧固螺栓，用于将探头模块的螺杆与轴箱之间连接以实现探头模块与紧固螺栓之间相对旋转并密封；
    所述螺杆的杆壁上设有第一环形凹槽，所述紧固螺栓上具有内孔，内孔孔壁上设有第二环形凹槽，所述第一环形凹槽和第二环形凹槽相互配合连接以形成容纳密封垫圈的密封环槽。
  5. 根据权利要求4所述的铁路客车轴承温度检测方法的数字/模拟集成式温度传感器，其特 征在于，所述密封垫圈为弹性密封垫圈。
PCT/CN2017/101805 2017-07-31 2017-09-15 一种铁路客车轴承温度检测方法及数字/模拟集成式温度传感器 WO2019024185A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710637984.8 2017-07-31
CN201710637984.8A CN107478350B (zh) 2017-07-31 2017-07-31 一种铁路客车轴承温度检测方法及数字/模拟集成式温度传感器

Publications (1)

Publication Number Publication Date
WO2019024185A1 true WO2019024185A1 (zh) 2019-02-07

Family

ID=60598446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/101805 WO2019024185A1 (zh) 2017-07-31 2017-09-15 一种铁路客车轴承温度检测方法及数字/模拟集成式温度传感器

Country Status (2)

Country Link
CN (1) CN107478350B (zh)
WO (1) WO2019024185A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116202692A (zh) * 2023-05-06 2023-06-02 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) 地下水阻隔工程渗漏的动态实时监测方法及***

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108760066B (zh) * 2018-06-04 2020-05-19 中车青岛四方机车车辆股份有限公司 一种列车温度检测方法、装置及***
CN108791357A (zh) * 2018-06-04 2018-11-13 中车青岛四方机车车辆股份有限公司 一种列车实时轴温报警***
CN108903635A (zh) * 2018-08-29 2018-11-30 九阳股份有限公司 一种电水壶的温度显示确定方法
CN109632146B (zh) * 2019-01-30 2021-01-05 浙江帕博电力科技有限公司 电力设备温度监测***和无线温度传感器
CN113879357B (zh) * 2021-10-14 2022-11-18 中车青岛四方机车车辆股份有限公司 列车轴温检测方法及装置
CN116147805B (zh) * 2023-04-20 2023-06-27 北京工业大学 一种用于泵站填料函温度监测的冗余监测方法和***
CN117906761A (zh) * 2023-12-12 2024-04-19 钛玛科（北京）工业科技有限公司 一种工作于高温环境下高速运动物体的温度测量装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2352941Y (zh) * 1998-08-24 1999-12-08 南京紫金山天文台星河电子***工程有限公司 兼容数字、模拟两种传感器的列车轴温监测装置
CN201488832U (zh) * 2009-09-11 2010-05-26 中国铁道科学研究院机车车辆研究所 机车车辆用轴温传感器
CN102350995A (zh) * 2011-07-15 2012-02-15 中国铁道科学研究院机车车辆研究所 一种用于铁路货车的热轴报警方法和***
CN102564625A (zh) * 2010-12-29 2012-07-11 上海市电力公司 一种无线温度传感器
CN103129578A (zh) * 2011-12-02 2013-06-05 南车青岛四方机车车辆股份有限公司 定温式复合温度传感器及其检测方法
JP5553002B2 (ja) * 2010-11-05 2014-07-16 日本精工株式会社 軸受異常診断装置およびこれを備えた鉄道車両、並びに軸受異常診断方法
CN104477206A (zh) * 2013-07-23 2015-04-01 Skf公司 铁路轴箱中的滚动轴承温度测量***及相关方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2818375B1 (fr) * 2000-12-19 2003-03-21 Valeo Climatisation Procede de mesure mettant en oeuvre une compensation thermique, d'une thermopile et dispositif pour sa mise en oeuvre
CN101793566A (zh) * 2010-02-26 2010-08-04 江苏镇安电力设备有限公司 一种测温螺栓
CN103528708A (zh) * 2012-07-03 2014-01-22 黄正宇 一种单总线温度采集***集成芯片
CN103954379A (zh) * 2014-04-11 2014-07-30 国家电网公司 一种变压器测温***故障定位装置
CN106338346A (zh) * 2016-08-30 2017-01-18 衢州学院 一种电气设备温度监测无线传感器网络节点

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2352941Y (zh) * 1998-08-24 1999-12-08 南京紫金山天文台星河电子***工程有限公司 兼容数字、模拟两种传感器的列车轴温监测装置
CN201488832U (zh) * 2009-09-11 2010-05-26 中国铁道科学研究院机车车辆研究所 机车车辆用轴温传感器
JP5553002B2 (ja) * 2010-11-05 2014-07-16 日本精工株式会社 軸受異常診断装置およびこれを備えた鉄道車両、並びに軸受異常診断方法
CN102564625A (zh) * 2010-12-29 2012-07-11 上海市电力公司 一种无线温度传感器
CN102350995A (zh) * 2011-07-15 2012-02-15 中国铁道科学研究院机车车辆研究所 一种用于铁路货车的热轴报警方法和***
CN103129578A (zh) * 2011-12-02 2013-06-05 南车青岛四方机车车辆股份有限公司 定温式复合温度传感器及其检测方法
CN104477206A (zh) * 2013-07-23 2015-04-01 Skf公司 铁路轴箱中的滚动轴承温度测量***及相关方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116202692A (zh) * 2023-05-06 2023-06-02 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) 地下水阻隔工程渗漏的动态实时监测方法及***
CN116202692B (zh) * 2023-05-06 2023-07-04 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) 地下水阻隔工程渗漏的动态实时监测方法及***

Also Published As

Publication number Publication date
CN107478350B (zh) 2019-07-23
CN107478350A (zh) 2017-12-15

Similar Documents

Publication Publication Date Title
WO2019024185A1 (zh) 一种铁路客车轴承温度检测方法及数字/模拟集成式温度传感器
CN111024416B (zh) 一种列车牵引***的故障诊断方法及***
CN106227122B (zh) 一种车载故障检测及预警***
CN106017932A (zh) 电机轴承在线监测及智能预警***
CN201364635Y (zh) 高速列车火灾报警控制***
FR2882141A1 (fr) Procede et dispositif pour detecter au sol l'obstruction d'une prise de pression d'un capteur de pression statique d'un aeronef
CN106950450B (zh) 继电保护装置二次回路故障的预警方法和设备
CN106194602B (zh) 一种风电机组无线声发射检测装置
CN109752172A (zh) 一种高压隔离开关机械卡涩监测方法及装置
CN110775097A (zh) 一种基于车载设备的列车完整性监测装置及方法
CN105136278A (zh) 一种轴承***声学故障检测装置
JP2020516903A (ja) バルブ漏れの予測方法
CN104931798B (zh) 堆外核仪表***的源量程脉冲测量装置及其检测定位方法
CN112630689B (zh) 一种断线诊断装置及相关组件
CN101995839B (zh) 一种安全级机柜监视装置
CN210665797U (zh) Crh3型动车组速度传感器便携式检测装置
CN205352459U (zh) 一种输电线路在线监测传感器
CN106788692A (zh) 一种模块los的测试设备及其测试方法
CN210007723U (zh) 一种基于局部物联网的瞬时故障捕捉报警装置
CN102564490B (zh) 换流阀水冷***中的冗余仪表检测值异常时的判断方法
CN212482903U (zh) 柴油机故障诊断和控制装置
CN204549693U (zh) 一种电梯远程监控故障报警***
CN103129578A (zh) 定温式复合温度传感器及其检测方法
CN113188822A (zh) 一种挖掘机自动检测装置
CN113203531A (zh) 一种变压器套管密封度监测方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17920543

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17920543

Country of ref document: EP

Kind code of ref document: A1