CN113879357A - Train axle temperature detection method and device - Google Patents
Train axle temperature detection method and device Download PDFInfo
- Publication number
- CN113879357A CN113879357A CN202111199993.6A CN202111199993A CN113879357A CN 113879357 A CN113879357 A CN 113879357A CN 202111199993 A CN202111199993 A CN 202111199993A CN 113879357 A CN113879357 A CN 113879357A
- Authority
- CN
- China
- Prior art keywords
- temperature
- train
- measuring unit
- axle
- analog
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 111
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000004590 computer program Methods 0.000 claims description 17
- 230000007613 environmental effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 16
- 238000005070 sampling Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- G01K13/00—Thermometers specially adapted for specific purposes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a train axle temperature detection method and device, which are characterized in that train axle temperatures respectively measured are received from a digital temperature measurement unit and an analog temperature measurement unit, and if a first temperature difference between the train axle temperatures is larger than a first threshold value and lasts for a target time interval, the train state is obtained. And under the condition that the train state is the running state, comparing the respective target suspicious values of the digital temperature measuring unit and the analog temperature measuring unit, and acquiring the train axle temperature measured by the temperature measuring unit with the relatively smaller target suspicious value. And under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature. And under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than the second threshold value, the train shaft temperature measured by the digital temperature measuring unit is adopted. And under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is not greater than the second threshold value, acquiring the train axle temperature corresponding to the second temperature difference not greater than the second threshold value.
Description
Technical Field
The invention relates to the technical field of train communication, in particular to a train axle temperature detection method and device.
Background
The current train is mostly provided with a centralized train axle temperature early warning system, the train axle temperature is an important parameter of train operation, real-time detection needs to be kept, and if the axle temperature meets the alarm condition, an alarm is given out.
Currently, a train temperature sensor includes a digital temperature measurement unit and an analog temperature measurement unit. The analog temperature measuring unit has wide temperature measuring range, but the anti-interference capability is not as good as that of the digital temperature measuring unit, and the digital temperature measuring unit is a sensor which outputs a digital quantity (or digital code) by additionally installing or modifying an A/D conversion module on the traditional analog sensor, has certain anti-interference capability and can solve the problem of poor signal of the analog temperature measuring unit.
In the prior art, the condition that a train stops abnormally is caused by punishment braking caused by disconnection of an axle temperature safety loop due to false alarm of an axle temperature host.
Therefore, how to optimize the axle temperature measurement logic and reduce the occurrence probability of the axle temperature false alarm problem is a subject generally considered in the industry.
Disclosure of Invention
The invention aims to provide a method and a device for detecting the axle temperature of a train.
In a first aspect, the invention provides a train axle temperature detection method, which comprises the following steps:
receiving the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit respectively;
if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
under the condition that the train state is the running state, comparing the respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than a second threshold value, the train shaft temperature measured by the digital temperature measuring unit is adopted;
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is not greater than the second threshold value, acquiring the train axle temperature corresponding to the second temperature difference not greater than the second threshold value.
According to the train axle temperature detection method provided by the invention, the method further comprises the following steps:
and under the condition that the train state is the running state, locking the temperature measuring unit with a relatively large target suspicious value in the digital temperature measuring unit and the analog temperature measuring unit.
According to the train axle temperature detection method provided by the invention, the method further comprises the following steps:
and under the condition that the train state is a running state and the target suspicious values of the digital temperature measuring unit and the analog temperature measuring unit are equal, the axle temperature of the train measured by the digital temperature measuring unit is informed.
According to the train axle temperature detection method provided by the invention, the method further comprises the following steps:
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit and the analog temperature measurement unit is not greater than a second threshold value, locking the analog temperature measurement unit.
According to the train axle temperature detection method provided by the invention, the method further comprises the following steps:
and under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is larger than a second threshold value, locking the digital temperature measuring unit and the analog temperature measuring unit.
According to the train axle temperature detection method provided by the invention, the method further comprises the following steps:
and reporting the fault information of the digital temperature measuring unit and the analog temperature measuring unit to a gateway PLC (programmable logic controller) under the condition that the digital temperature measuring unit and the analog temperature measuring unit are locked.
According to the train axle temperature detection method provided by the invention, the train state is obtained, and the method comprises the following steps:
when the train axle temperatures measured by the digital temperature measuring units and the analog temperature measuring units in a first quantity are received, the train axle temperatures exceed the environmental temperature and reach a preset value, and the first quantity is not more than a first quantity threshold value, or the train axle temperatures do not exceed the preset value and the first quantity is not less than a second quantity threshold value, the train is judged to be in a standing and cooling state;
and when the train axle temperatures measured by the digital temperature measuring units and the analog temperature measuring units in the second number are received, the train axle temperatures exceed the environmental temperature and reach the preset value, and the second number is greater than the first number threshold value, the train is judged to be in the running state.
In a second aspect, the present invention further provides a train axle temperature detection device, including:
the receiving module is used for receiving the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit;
the shaft temperature acquisition module is used for:
if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
under the condition that the train state is the running state, acquiring respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than a second threshold value, the train shaft temperature measured by the digital temperature measuring unit is adopted;
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is smaller than a second threshold value, acquiring the train axle temperature corresponding to the second temperature difference of which the confidence value is not larger than the second threshold value.
In a third aspect, the invention further provides a train, which comprises the train axle temperature detection device.
In a fourth aspect, the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to implement any of the steps of the train axle temperature detection method described above.
In a fifth aspect, the present invention further provides a non-transitory computer readable storage medium, on which a computer program is stored, the computer program, when being executed by a processor, implementing the steps of the train axle temperature detection method according to any one of the above.
In a sixth aspect, the present invention further provides a computer program product, which includes a computer program, and the computer program is executed by a processor to implement the steps of the train axle temperature detection method according to any one of the above.
According to the train axle temperature detection method and device provided by the invention, the train axle temperatures respectively measured are received from the digital temperature measurement unit and the analog temperature measurement unit, and if the first temperature difference between the measured train axle temperatures is larger than a first threshold value and lasts for a target time interval, the train state is obtained. And under the condition that the train state is the running state, comparing the respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the temperature of the train shaft measured by the temperature measurement unit with the relatively smaller target suspicious value. And under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature. And under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than the second threshold value, the train shaft temperature measured by the digital temperature measuring unit is adopted. And under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is not greater than the second threshold value, acquiring the train axle temperature corresponding to the second temperature difference not greater than the second threshold value.
In the technical scheme of the invention, the digital temperature measuring unit and the analog temperature measuring unit both monitor the axle temperature of the train, and the axle temperature detection scheme is optimized by combining the train state and the ambient temperature, so that the problem of no alarm of the axle temperature of the train is reduced.
Drawings
Fig. 1 is a schematic flow chart of a train axle temperature detection method according to an embodiment of the present invention;
fig. 2 is a second schematic flow chart of a train axle temperature detection method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a train axle temperature detection device provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The train axle temperature detection method of the invention is described below with reference to fig. 1-2. The execution main body of the method is a train axle temperature detection system.
Referring to fig. 1, the method specifically includes the following steps:
step 110: receiving the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit respectively;
step 120: if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
step 130: under the condition that the train state is the running state, comparing the respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
step 140: under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
step 150: under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than a second threshold value, the train axle temperature measured by the digital temperature measuring unit is adopted;
step 160: and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is smaller than a second threshold value, acquiring the train axle temperature corresponding to the second temperature difference of which the confidence value is not larger than the second threshold value.
In the embodiment of the invention, the digital temperature measuring unit and the analog temperature measuring unit both monitor the axle temperature of the train, and the axle temperature detection scheme is optimized by combining the train state and the ambient temperature, so that the problem of no alarm of the axle temperature of the train is reduced.
In the embodiment of the invention, the digital temperature measuring unit and the analog temperature measuring unit can be simultaneously integrated in the same temperature sensor. A plurality of temperature sensors can be arranged in the train at the same time to measure the temperature of different bearings.
The first temperature difference between the two groups of train axle temperatures measured by the digital temperature measuring unit and the analog temperature measuring unit is larger than a first threshold value, and the train axle temperature measured by the digital temperature measuring unit is larger than the analog temperature measuring unit or the train axle temperature measured by the analog temperature measuring unit is larger than the digital temperature measuring unit.
The first temperature difference between the two groups of train axle temperatures measured by the digital temperature measuring unit and the analog temperature measuring unit is larger than a first threshold value, and the temperature difference between the digital temperature measuring unit and the analog temperature measuring unit is considered to be large, so that at least one temperature measuring unit can be in fault. If the first temperature difference lasts for a longer time, such as a target time interval, the probability of the at least one temperature measuring unit failing is considered to be greater.
Specifically, the specific values of the first threshold value and the target time interval are set as needed.
In this case, the train state can be acquired in real time.
Optionally, when the train axle temperatures measured by the digital temperature measuring units and the analog temperature measuring units in a first number are received, the train axle temperatures exceed the environmental temperature and reach a preset value, and the first number is not greater than a number threshold value, the train is judged to be in a standing and cooling state;
and when the train axle temperatures measured by the digital temperature measuring units and the analog temperature measuring units in the second number are received, the train axle temperatures exceed the environmental temperature and reach the preset value, and the second number is greater than the number threshold value, the train is judged to be in the running state.
In the embodiment of the invention, the digital temperature measurement unit and the analog temperature measurement unit both maintain a suspicious value counter, the suspicious value of any one temperature measurement unit is increased by 1 every time the temperature measurement unit triggers a temporary fault, and the larger the suspicious value is, the more the historical fault times of the temperature measurement unit are, the more the suspicious value is unreliable. Therefore, the target suspicious value described in the embodiment of the present invention is determined in advance according to the historical failure times of each temperature measurement unit.
And if the target suspicious value is relatively small, the reliability of the target suspicious value is higher, so that the axle temperature of the train measured by the temperature measuring unit can be collected.
Under the condition, when the train axle temperature with the relatively small target suspicious value is informed, the temperature measuring unit with the relatively large target suspicious value in the digital temperature measuring unit and the analog temperature measuring unit can be locked at the same time, so that the condition that the false alarm of the alarm system is influenced by the continuously provided unreliable train axle temperature is avoided.
Optionally, the axle temperature of the train measured by the digital temperature measuring unit is signaled under the condition that the train state is the running state and the target suspicious values of the digital temperature measuring unit and the analog temperature measuring unit are equal.
In this embodiment, considering that the digital temperature measurement unit has stronger interference resistance than the analog temperature measurement unit, the axle temperature of the train measured by the digital temperature measurement unit can be estimated under the condition that the suspicious values of the digital temperature measurement unit and the analog temperature measurement unit are equal.
Alternatively, in the case where the train state is the still cooling state, since the ambient temperature is regarded as constant, it can be used as a reference for judging the train axle temperature.
Under the condition that the temperature difference between the digital temperature measuring unit and the environment temperature and the temperature difference between the analog temperature measuring unit and the environment temperature are not larger than the second threshold value, the axle temperature of the train measured by the digital temperature measuring unit with stronger signal acquisition anti-jamming capability is more credible.
At this time, the analog temperature measuring unit can be locked.
And under the condition that the second temperature difference between one of the digital temperature measuring unit and the analog temperature measuring unit and the ambient temperature is not greater than a second threshold value, acquiring the train axle temperature corresponding to the second temperature difference which is not greater than the second threshold value.
Optionally, the temperature measuring unit to which the second temperature difference larger than the second threshold belongs is locked.
Optionally, the digital temperature measurement unit and the analog temperature measurement unit are locked when the second temperature difference corresponding to each of the digital temperature measurement unit and the analog temperature measurement unit is greater than a second threshold value.
In an optional embodiment of the present invention, the fault information of the digital temperature measurement unit and the analog temperature measurement unit is reported to the gateway PLC when both the digital temperature measurement unit and the analog temperature measurement unit are locked.
Referring to fig. 2, a specific train axle temperature detection method provided in the embodiment of the present invention includes the following steps:
step 210: acquiring the axle box temperature measured by a digital temperature measuring unit and an analog temperature measuring unit;
step 220: judging whether the temperature of the axle box is stable or not;
if not, go to step 230: locking the unstable temperature measurement unit;
if yes, go to step 240: judging whether the axle box temperature stabilization time exceeds 12s, and in other alternative embodiments, the axle box temperature stabilization time is not limited to 12s and can be other values;
if not, go to step 250: the temperature measuring unit which is determined to be in the temporary fault state is removed from the temporary fault state and is switched to the normal state;
if yes, go to step 260: judging whether the digital temperature measuring unit or the analog temperature measuring unit is in a normal state or not;
if yes, go to step 270: judging whether the temperature difference between the axle box temperatures measured by the digital temperature measuring unit and the analog temperature measuring unit is greater than 8 ℃ and lasts for 12 s;
if not, go to step 280: when the digital temperature measured by the digital temperature measuring unit is normal and not more than 120 ℃, acquiring the digital temperature; when the digital temperature is abnormal or is more than 120 ℃, the analog temperature measured by the signal acquisition analog temperature measurement unit is measured;
if yes, go to step 290: judging whether the train is in a standing and cooling state;
if yes, go to step 2100: judging whether the temperature difference between the digital temperature measuring unit and the ambient temperature is not more than 5 ℃;
if yes, go to step 2110: the analog temperature measuring unit is locked by the axle box temperature measured by the letter collecting digital temperature measuring unit;
if not, go to step 2120: judging whether the temperature difference between the simulation temperature measurement unit and the environment temperature is not more than 5 ℃;
if so, go to step 2130: the digital temperature measuring unit is locked at the analog temperature measured by the letter acquisition analog temperature measuring unit;
if not, go to step 2140: the digital temperature measuring unit and the analog temperature measuring unit are not credible, and the shaft temperature is set to be an open circuit;
if the determination in step 290 is negative, then step 2150 is executed: judging whether the suspicious values of the digital temperature measuring unit and the analog temperature measuring unit are equal or not;
if yes, go to step 280;
if not, go to step 2160: adopting a temperature measuring unit with a relatively small suspicious value to measure the temperature of the axle box;
if the determination in step 260 is no, step 2170 is executed: judging whether the digital temperature measuring unit or the analog temperature measuring unit is in an abnormal state;
if yes, go to step 2140;
if not, go to block 2180: and (5) acquiring the axle box temperature measured by the temperature measuring unit in the normal state.
The embodiment of the invention increases the current state check of the train. Specifically, the train state is acquired when the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit keeps a value stably smaller than a certain time interval. For example, in the embodiment shown in fig. 2, the fixed time interval is 12s, and may be set to other numbers as needed.
Specifically, after the axle temperature of the train stably works, the temperature values of 16 axle temperature measuring units (8 digital temperature measuring units and 8 analog temperature measuring units) of 8 axle temperature sensors of the train are collected in real time (period 1s), and are compared with the average value of the environmental temperature (hereinafter referred to as the ring temperature) of the train (whole train):
a. the number of temperature measuring units with the shaft temperature of more than the ring temperature and at the temperature of 5 ℃ is less than or equal to 4 (or the number of temperature measuring units with the shaft temperature of less than or equal to the ring temperature and at the temperature of 5 ℃ is more than or equal to 12), and the train is judged to be in a standing and cooling state;
b. otherwise (the number of the temperature measuring units with the shaft temperature being more than the ring temperature and the temperature being 5 ℃ is more than 4) the train is judged to be in the running state.
In this embodiment, the ambient temperature +5 ℃ may correspond to the predetermined value in the embodiment shown in fig. 1, 4 may correspond to the first quantity threshold in the embodiment shown in fig. 1, and 12 may correspond to the second quantity threshold in the embodiment shown in fig. 1.
The number of the digital temperature measuring units and the analog temperature measuring units is an example and does not limit the protection scope of the present invention. In practical application, the setting can be carried out according to the requirements of the field environment.
The embodiment of the invention provides a sensor state check method, which comprises the following steps:
a. when a single digital temperature measuring unit and an analog temperature measuring unit are both in a normal state, if one of the following fault conditions occurs in one of the temperature measuring units, the temperature measuring unit is set as a temporary fault, and the normal temperature measured by the other temperature measuring unit is informed:
exception: collecting temperature values which are abnormal of open circuit, short circuit or temperature reading incapability;
temperature rise: the temperature rise in 3s (3 consecutive sampling periods) is greater than 5 ℃;
and (3) temperature reduction: the temperature drops by more than 5 ℃ within 3s (3 continuous sampling periods);
jumping: the difference between the current collection temperature and the previous collection temperature is more than 10 ℃;
b. and maintaining a suspicious value counter for each digital temperature measurement unit and each analog temperature measurement unit, increasing the suspicious value of any temperature measurement unit by 1 every time the temperature measurement unit triggers a temporary fault, wherein the larger the suspicious value is, the more the historical fault times of the temperature measurement unit are, the more the suspicious value is unreliable. The suspicious value is effective in the power-on period, and is not stored after power failure.
c. If the temporary faults (abnormity/temperature rise/temperature drop/jump) occur more than 15 times within 10s (10 sampling periods) or 10 minutes (600 sampling periods) continuously in a certain digital temperature measurement unit or an analog temperature measurement unit, the temporary faults of the circuit temperature measurement unit are converted into a locked state, and no signal is collected in the power-on period.
d. And if the temperature measurement unit is in temporary fault, comparing the effective temperature acquired this time with the last effective temperature before the temporary fault of the temperature measurement unit if the temperature measurement unit is in open circuit/short circuit/abnormal state last time and the temperature acquired this time is effective temperature, judging the temperature acquired this time to be effective temperature if the difference between the effective temperature and the last effective temperature is not more than 5 ℃ (judging to be a new temporary fault if the difference is more than 5 ℃), and canceling the temporary fault of the temperature measurement unit after the subsequent temperature is continuously stable (without abnormity/temperature rise/temperature drop/jump) for 12s (12 sampling periods) and bringing the subsequent temperature into a signal acquisition mechanism again.
e. When a single digital temperature measuring unit and an analog temperature measuring unit are both in a normal state, if the difference between the digital temperature and the analog temperature is more than 8 ℃ (the difference between the positive temperature measuring error and the negative temperature measuring error is larger than 12 seconds (12 sampling periods), the state of a train is judged, if the train is in a running state, the suspicious values of the digital temperature measuring unit and the analog temperature measuring unit are compared, one temperature measuring unit with a smaller suspicious value is informed, the other temperature measuring unit with a larger suspicious value is locked, and when the suspicious values are equal, the digital temperature measuring unit is informed, and the analog temperature measuring unit is locked; if the train is in a standing and cooling state, comparing the temperature values of the two temperature measuring units with the ambient temperature respectively:
if the difference value between the temperature values of the two temperature measuring units and the ring temperature is less than or equal to 5 ℃, the temperature value of the digital temperature measuring unit is adopted and the simulation temperature measuring unit is locked;
if the difference value between the temperature value of one path of temperature measuring unit and the ring temperature is more than 5 ℃, locking the temperature measuring unit with the difference value of the ring temperature being more than 5 ℃, and informing the temperature measuring unit with the difference value of the other path of temperature measuring unit and the ring temperature being less than or equal to 5 ℃;
and if the temperature values of the two temperature measuring units and the ring temperature difference value exceed 5 ℃, locking the two temperature measuring units.
The above embodiment of the present invention proposes an optimized temperature acquisition mechanism:
firstly, when the digital temperature measurement unit and the analog temperature measurement unit of the measuring point are both in a stable and normal state (no temporary fault or locking) and the absolute value of the difference value between the two is less than or equal to 8 ℃, the temperature value of the digital temperature measurement unit is preferentially selected;
and secondly, when one of the digital temperature and the analog temperature of the measuring point is in a temporary fault or a locking state, the temperature of the other normal channel is informed.
And thirdly, the state of the temperature measuring unit in the sensor states reported by the single sensor when a certain temperature measuring unit temporarily fails is normal, and the state of the temperature measuring unit in the sensor states reported by the single sensor when the temperature measuring unit is in a locking state is a fault.
And fourthly, when the digital temperature measuring unit and the analog temperature measuring unit of the measuring point are both in a temporary fault or locked state, and the temperatures of the two paths are not informed, the temperature value of the measuring point is lost, the two paths of sensors in the sensor state reported to the gateway PLC screen are both in fault, and the reported temperature value of the measuring point is invalid.
The following describes the train axle temperature detection device provided by the present invention, and the train axle temperature detection device described below and the train axle temperature detection method described above can be referred to correspondingly.
Referring to fig. 3, the train axle temperature detecting apparatus of the present embodiment may include:
the receiving module 310 is configured to receive the train axle temperatures measured by the digital temperature measuring unit and the analog temperature measuring unit;
a shaft temperature signal acquisition module 320 for:
if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
under the condition that the train state is the running state, acquiring respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than a second threshold value, the train shaft temperature measured by the digital temperature measuring unit is adopted;
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is smaller than a second threshold value, acquiring the train axle temperature corresponding to the second temperature difference of which the confidence value is not larger than the second threshold value.
Optionally, the axle temperature credit module 320 is further configured to:
and under the condition that the train state is the running state, locking the temperature measuring unit with a relatively large target suspicious value in the digital temperature measuring unit and the analog temperature measuring unit.
Optionally, the axle temperature credit module 320 is further configured to:
and under the condition that the train is in the running state and the target suspicious values of the condition digital temperature measuring unit and the simulation temperature measuring unit are equal, the axle temperature of the train measured by the digital temperature measuring unit is informed.
Optionally, the axle temperature credit module 320 is further configured to:
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit and the analog temperature measurement unit is not greater than a second threshold value, locking the analog temperature measurement unit.
Optionally, the axle temperature credit module 320 is further configured to:
and under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is larger than a second threshold value, locking the digital temperature measuring unit and the analog temperature measuring unit.
Optionally, the axle temperature credit module 320 is further configured to:
and reporting the fault information of the digital temperature measuring unit and the analog temperature measuring unit to a gateway PLC (programmable logic controller) under the condition that the digital temperature measuring unit and the analog temperature measuring unit are locked.
Optionally, the axle temperature signal acquiring module 320 is further specifically configured to:
when the train axle temperatures measured by the digital temperature measuring units and the analog temperature measuring units in a first quantity are received, the train axle temperatures exceed the environmental temperature and reach a preset value, and the first quantity is not more than a first quantity threshold value, or the train axle temperatures do not exceed the preset value and the first quantity is not less than a second quantity threshold value, the train is judged to be in a standing and cooling state;
and when the train axle temperatures measured by the digital temperature measuring units and the analog temperature measuring units in the second number are received, the train axle temperatures exceed the environmental temperature and reach the preset value, and the second number is greater than the first number threshold value, the train is judged to be in the running state.
The embodiment of the invention also provides a train, which comprises the train axle temperature detection device provided by the embodiment.
Fig. 4 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 4: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may invoke logic instructions in the memory 430 to perform a train axle temperature detection method comprising:
receiving the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit respectively;
if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
under the condition that the train state is the running state, comparing the respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than a second threshold value, the train shaft temperature measured by the digital temperature measuring unit is adopted;
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is not greater than the second threshold value, acquiring the train axle temperature corresponding to the second temperature difference not greater than the second threshold value.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention further provides a computer program product, the computer program product including a computer program, the computer program being stored on a non-transitory computer readable storage medium, wherein when the computer program is executed by a processor, a computer is capable of executing the train axle temperature detection method provided by the above methods, and the method includes:
receiving the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit respectively;
if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
under the condition that the train state is the running state, comparing the respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than a second threshold value, the train shaft temperature measured by the digital temperature measuring unit is adopted;
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is not greater than the second threshold value, acquiring the train axle temperature corresponding to the second temperature difference not greater than the second threshold value.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to execute the train axle temperature detection method provided by the above methods, the method including:
receiving the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit respectively;
if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
under the condition that the train state is the running state, comparing the respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is not greater than a second threshold value, the train shaft temperature measured by the digital temperature measuring unit is adopted;
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is not greater than the second threshold value, acquiring the train axle temperature corresponding to the second temperature difference not greater than the second threshold value.
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 examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. A train axle temperature detection method is characterized by comprising the following steps:
receiving the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit respectively;
if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
under the condition that the train state is the running state, comparing the respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
under the condition that the second temperature difference corresponding to each of the digital temperature measurement unit and the analog temperature measurement unit is not greater than a second threshold value, the axle temperature of the train measured by the digital temperature measurement unit is informed;
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is not greater than the second threshold value, acquiring the train axle temperature corresponding to the second temperature difference not greater than the second threshold value.
2. The train axle temperature detection method according to claim 1, further comprising:
and under the condition that the train state is the running state, locking the temperature measuring unit with a relatively large target suspicious value in the digital temperature measuring unit and the analog temperature measuring unit.
3. The train axle temperature detection method according to claim 2, further comprising:
and under the condition that the train state is a running state and the target suspicious values of the digital temperature measuring unit and the analog temperature measuring unit are equal, the axle temperature of the train measured by the digital temperature measuring unit is informed.
4. The train axle temperature detection method according to claim 1, further comprising:
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit and the analog temperature measurement unit is not greater than the second threshold value, locking the analog temperature measurement unit.
5. The train axle temperature detection method according to claim 1, further comprising:
and under the condition that the second temperature difference corresponding to the digital temperature measuring unit and the analog temperature measuring unit is larger than the second threshold value, locking the digital temperature measuring unit and the analog temperature measuring unit.
6. The train axle temperature detection method of claim 5, further comprising:
and reporting the fault information of the digital temperature measuring unit and the analog temperature measuring unit to a gateway PLC (programmable logic controller) under the condition that the digital temperature measuring unit and the analog temperature measuring unit are locked.
7. The train axle temperature detection method according to claim 1, wherein the obtaining of the train state comprises:
when the train axle temperatures measured by the digital temperature measuring units and the analog temperature measuring units in a first quantity are received, the train axle temperatures exceed the environmental temperature and reach a preset value, and the first quantity is not more than a first quantity threshold value, or the train axle temperatures do not exceed the preset value and the first quantity is not less than a second quantity threshold value, the train is judged to be in a standing and cooling state;
and when the train axle temperatures measured by the digital temperature measuring units and the analog temperature measuring units in the second number are received, the train axle temperatures exceed the environmental temperature and reach the preset value, and the second number is greater than the first number threshold value, the train is judged to be in the running state.
8. The utility model provides a train axle temperature detection device which characterized in that includes:
the receiving module is used for receiving the train axle temperature measured by the digital temperature measuring unit and the analog temperature measuring unit;
the shaft temperature acquisition module is used for:
if the measured first temperature difference between the axle temperatures of the train is larger than a first threshold value and the first temperature difference lasts for a target time interval, acquiring the train state;
under the condition that the train state is the running state, acquiring respective target suspicious values of the digital temperature measurement unit and the analog temperature measurement unit, and informing the train axle temperature measured by the temperature measurement unit with the relatively smaller target suspicious value;
under the condition that the train state is a standing cooling state, acquiring a second temperature difference between the measured train axle temperature and the ambient temperature;
under the condition that the second temperature difference corresponding to each of the digital temperature measurement unit and the analog temperature measurement unit is not greater than a second threshold value, the axle temperature of the train measured by the digital temperature measurement unit is informed;
and under the condition that the second temperature difference corresponding to the digital temperature measurement unit or the analog temperature measurement unit is smaller than the second threshold value, acquiring the train axle temperature corresponding to the second temperature difference of which the signal is not larger than the second threshold value.
9. A train comprising the train axle temperature detecting device according to claim 8.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor when executing the program performs the steps of the train axle temperature detection method according to any one of claims 1 to 7.
11. A computer program product comprising a computer program, wherein the computer program when executed by a processor implements the steps of the train axle temperature detection method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111199993.6A CN113879357B (en) | 2021-10-14 | 2021-10-14 | Train axle temperature detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111199993.6A CN113879357B (en) | 2021-10-14 | 2021-10-14 | Train axle temperature detection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113879357A true CN113879357A (en) | 2022-01-04 |
| CN113879357B CN113879357B (en) | 2022-11-18 |
Family
ID=79002854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111199993.6A Active CN113879357B (en) | 2021-10-14 | 2021-10-14 | Train axle temperature detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113879357B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115909674A (en) * | 2023-02-13 | 2023-04-04 | 成都秦川物联网科技股份有限公司 | Alarm and gas meter linkage method based on intelligent gas and Internet of things system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT7909508A0 (en) * | 1979-08-07 | 1979-08-07 | Scliani Pier Luigi | METHOD AND SYSTEM FOR DETECTING HOT BUSHINGS INDEPENDENTLY OF ENVIRONMENTAL FACTORS, EVEN VARIABLE |
| JP2006276004A (en) * | 2005-03-01 | 2006-10-12 | Fujitsu Ten Ltd | Method and device for deciding abnormality of temperature detection means |
| CN107054405A (en) * | 2017-04-19 | 2017-08-18 | 东南大学 | A kind of low-power consumption Locomotive Axletree Temperature Detector |
| CN107478350A (en) * | 2017-07-31 | 2017-12-15 | 中车南京浦镇车辆有限公司 | A kind of Rolling Stock Bearing temperature checking method and digital-to-analog integrated form temperature sensor |
| CN108760066A (en) * | 2018-06-04 | 2018-11-06 | 中车青岛四方机车车辆股份有限公司 | A kind of train temperature detection method, apparatus and system |
| CN111024416A (en) * | 2018-10-09 | 2020-04-17 | 株洲中车时代电气股份有限公司 | Fault diagnosis method and system for train traction system |
| CN210363861U (en) * | 2019-01-16 | 2020-04-21 | 株洲中车时代电气股份有限公司 | Shaft temperature detection device and shaft temperature pre/alarm system |
| CN212401223U (en) * | 2020-06-22 | 2021-01-26 | 南京紫台星河电子有限责任公司 | Digital-analog combined type shaft temperature alarm device |
| WO2021174841A1 (en) * | 2020-03-02 | 2021-09-10 | 北京迈格威科技有限公司 | Temperature measurement method, temperature measurement apparatus, electronic device and computer-readable storage medium |
-
2021
- 2021-10-14 CN CN202111199993.6A patent/CN113879357B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT7909508A0 (en) * | 1979-08-07 | 1979-08-07 | Scliani Pier Luigi | METHOD AND SYSTEM FOR DETECTING HOT BUSHINGS INDEPENDENTLY OF ENVIRONMENTAL FACTORS, EVEN VARIABLE |
| JP2006276004A (en) * | 2005-03-01 | 2006-10-12 | Fujitsu Ten Ltd | Method and device for deciding abnormality of temperature detection means |
| CN107054405A (en) * | 2017-04-19 | 2017-08-18 | 东南大学 | A kind of low-power consumption Locomotive Axletree Temperature Detector |
| CN107478350A (en) * | 2017-07-31 | 2017-12-15 | 中车南京浦镇车辆有限公司 | A kind of Rolling Stock Bearing temperature checking method and digital-to-analog integrated form temperature sensor |
| CN108760066A (en) * | 2018-06-04 | 2018-11-06 | 中车青岛四方机车车辆股份有限公司 | A kind of train temperature detection method, apparatus and system |
| CN111024416A (en) * | 2018-10-09 | 2020-04-17 | 株洲中车时代电气股份有限公司 | Fault diagnosis method and system for train traction system |
| CN210363861U (en) * | 2019-01-16 | 2020-04-21 | 株洲中车时代电气股份有限公司 | Shaft temperature detection device and shaft temperature pre/alarm system |
| WO2021174841A1 (en) * | 2020-03-02 | 2021-09-10 | 北京迈格威科技有限公司 | Temperature measurement method, temperature measurement apparatus, electronic device and computer-readable storage medium |
| CN212401223U (en) * | 2020-06-22 | 2021-01-26 | 南京紫台星河电子有限责任公司 | Digital-analog combined type shaft temperature alarm device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115909674A (en) * | 2023-02-13 | 2023-04-04 | 成都秦川物联网科技股份有限公司 | Alarm and gas meter linkage method based on intelligent gas and Internet of things system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113879357B (en) | 2022-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107831422B (en) | GIS equipment partial discharge diagnosis method and system | |
| CN108696368B (en) | Network element health state detection method and equipment | |
| CN109088775B (en) | Abnormity monitoring method and device and server | |
| CN111353911A (en) | Power equipment operation and maintenance method, system, equipment and storage medium | |
| CN112630682B (en) | Sensor fault detection method, device and equipment | |
| CN113485281B (en) | Method and system for generating measuring point alarm and reset information in background of distributed control system | |
| CN113879357B (en) | Train axle temperature detection method and device | |
| CN116365716B (en) | Electricity inspection system based on internet of things platform | |
| US11397212B2 (en) | Identification of cause of failure in a power storage system | |
| CN115059634B (en) | Fault diagnosis method and device for air blowing equipment and electronic equipment | |
| CN111047816A (en) | Fire monitoring method and system for battery charging cabinet | |
| CN116381460A (en) | Power supply operation safety supervision system for vehicle-mounted shelter CT | |
| CN110489260B (en) | Fault identification method and device and BMC | |
| CN109725220B (en) | Detection method, system and device for transformer oil cooling loop | |
| JP6223380B2 (en) | Relay device and program | |
| CN116311829B (en) | Remote alarm method and device for data machine room | |
| CN113112216A (en) | Prejudgment analysis method for equipment defects | |
| CN111007363A (en) | Transmission line fault monitoring device, method and equipment and storage medium | |
| CN114578269A (en) | Motor rotor winding turn-to-turn short circuit detection system and method | |
| CN113815636A (en) | Vehicle safety monitoring method and device, electronic equipment and storage medium | |
| CN112579665A (en) | Energy equipment control method and device and energy equipment | |
| CN107229039B (en) | Radar frame fault detection method | |
| CN113469453B (en) | Elevator evaluation method and elevator evaluation device based on information physical system | |
| CN114115503B (en) | System and method for automatically adjusting CPU voltage alarm threshold | |
| CN115021207A (en) | Leakage protection method, device and equipment based on human body maximum bearing current |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |