Fault positioning method, device and train

Abstract

The disclosure provides a fault positioning method, which can be applied to the technical field of intelligent temperature control. The fault positioning method comprises the following steps: detecting the temperature of a target area of a train by using a temperature sensor to obtain a first temperature value; controlling a warm air assembly to be turned on according to the first temperature value and a first predetermined judgment condition, so that the target area is heated by the warm air assembly through air flow; in the case that the warm air assembly is in an open state and no closed signal feedback of a temperature control switch can be received, the open state of the warm air assembly is maintained, wherein the temperature control switch feeds back the closed signal according to the outlet air temperature of the warm air assembly; sending abnormal report information related to the warm air assembly or the temperature control switch to a monitoring center, so that the monitoring center performs fault positioning according to the abnormal report information. The disclosure also provides a fault positioning device and a train.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of intelligent temperature control, in particular to a fault positioning method and device and a train. BACKGROUND

[0002] In the rail transit scenario, the train door opening and closing operation is frequently performed. When the vehicle is in winter operation period, the outside air temperature is low, and a large amount of cold air will rush into the car in the door opening moment, causing the heat in the car to be lost sharply, affecting the passenger experience.

[0003] If the heat loss caused by the door opening is compensated by adjusting the air conditioning temperature, on the one hand, the hot air sent by the air conditioner is difficult to quickly and uniformly distribute to every corner of the car, especially the through platform area near the door; on the other hand, after the door is closed, the temperature in the car will be too high due to the continuous heating of the air conditioner, causing the temperature in the car to exceed the comfortable range, resulting in waste of energy. SUMMARY

[0004] In view of the above problems, the present disclosure provides a fault positioning method, device and train.

[0005] According to a first aspect of the present disclosure, a fault positioning method is provided, comprising: detecting the temperature of a target area of a train by using a temperature sensor to obtain a first temperature value; controlling a warm air assembly to be turned on according to the first temperature value and a first predetermined judgment condition, so as to heat the target area by making the air flow by using the warm air assembly; maintaining the open state of the warm air assembly in the case that the warm air assembly is in the open state and cannot receive a closed signal feedback from a temperature control switch, wherein the temperature control switch feeds back the closed signal according to the outlet air temperature of the warm air assembly; sending abnormal report information related to the warm air assembly or the temperature control switch to a monitoring center, so that the monitoring center locates the fault according to the abnormal report information.

[0006] According to an embodiment of the present disclosure, the first predetermined judgment condition comprises a first reference temperature, and the temperature control switch feeds back the closed signal according to the outlet air temperature of the warm air assembly, comprising: detecting the temperature of the outlet of the warm air assembly by using the temperature control switch to obtain a second temperature value; if the second temperature value reaches an outlet reference temperature threshold, the temperature control switch is closed and generates a closed signal to feed back to the air conditioner controller, wherein the outlet reference temperature threshold is greater than the first reference temperature; if the second temperature value does not reach the outlet reference temperature threshold, the temperature control switch is turned off and cannot feed back the closed signal to the air conditioner controller.

[0007] According to an embodiment of the present disclosure, the case that the temperature control switch cannot receive the closed signal feedback comprises: the warm air assembly is faulty, the outlet air temperature does not reach the outlet air temperature threshold; or the temperature control switch is faulty and cannot feed back the closed signal.

[0008] According to an embodiment of the present disclosure, the method further comprises: while the monitoring center receives the abnormal report information, obtaining a plurality of historical temperature values obtained by detecting the target area by using the temperature sensor in a predetermined historical time period; and performing fault positioning according to the plurality of historical temperature values and the abnormal report information.

[0009] According to an embodiment of the present disclosure, the fault positioning according to the plurality of historical temperature values and the abnormal report information comprises: if at least one historical temperature value reaches a first reference temperature in the predetermined historical time period, determining that the temperature control switch is faulty; and if the plurality of historical temperature values do not reach the first reference temperature in the predetermined historical time period, determining that the warm air assembly is faulty.

[0010] According to an embodiment of the present disclosure, the method further comprises: controlling the warm air assembly to be closed to stop heating the target area according to the first temperature value and a second predetermined judgment condition.

[0011] According to an embodiment of the present disclosure, the first predetermined judgment condition is that a temperature difference between the first temperature value and the first reference temperature is less than or equal to a first temperature threshold value, and a duration is greater than or equal to a first time threshold value; and the second predetermined judgment condition is that a temperature difference between the first temperature value and a second reference temperature is greater than or equal to a second temperature threshold value, and a duration is greater than or equal to a second time threshold value.

[0012] According to an embodiment of the present disclosure, the target area is an area in the train that exchanges heat with the external environment.

[0013] A second aspect of the present disclosure provides a fault positioning device, comprising: a first temperature detection module configured to detect a temperature of a target area of a train by using a temperature sensor to obtain a first temperature value; a first control module configured to control a warm air assembly to be turned on to heat the target area by flowing air according to the first temperature value and a first predetermined judgment condition; a second control module configured to maintain the warm air assembly in an open state when the warm air assembly is in the open state and a closing signal of a temperature control switch cannot be received, wherein the temperature control switch feeds back the closing signal according to an air outlet temperature of the warm air assembly; and a reporting module configured to send abnormal report information related to the warm air assembly or the temperature control switch to a monitoring center to enable the monitoring center to perform fault positioning according to the abnormal report information.

[0014] A third aspect of the present disclosure provides an electronic device, comprising: one or more processors; and a memory configured to store one or more programs, wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to perform the fault positioning method.

[0015] The fourth aspect of the present disclosure also provides a computer-readable storage medium having stored thereon executable instructions that, when executed by a processor, cause the processor to perform the fault locating method.

[0016] The fifth aspect of the present disclosure also provides a computer program product comprising a computer program which, when executed by a processor, implements the fault locating method.

[0017] The sixth aspect of the present disclosure also provides a train comprising a fault locating device to implement the fault locating method.

[0018] According to the embodiments of the present disclosure, by controlling the heater to turn on according to the temperature sensor, it is determined that there is a fault according to the temperature control switch. In this way, the situation that the entire heating assembly stops running due to a certain local fault (such as a temperature control switch fault) can be effectively avoided. The present disclosure does not stop the device from running, as long as the electric heater does not malfunction, it can continue to work and continuously provide heat to the target area, maintain the temperature as stable as possible, avoid large fluctuations in temperature, and ensure that there is a suitable temperature environment in the target area at all times until the heating assembly meets the originally set closing condition, and then the heating assembly stops working. The automatic closing of the heating assembly is controlled by the temperature sensor. The temperature sensor monitors the temperature of the target area in real time and feeds back the corresponding temperature value to the air conditioner controller. When the temperature rises to the set reasonable upper limit value, the air conditioner controller receives this signal and triggers the operation of closing the heating assembly, so that the electric heater stops heating, the fan stops blowing, and the like, so that the entire heating assembly stops working. In this way, it will not appear that the target area temperature is too high due to continuous heating without reasonable control, avoiding possible safety hazards (such as fire caused by overheating, burns, etc.), and preventing unnecessary waste of resources. After all, continuous heating will consume a large amount of energy and other resources, and by accurately controlling the closing time through the temperature sensor, the energy can be saved to the greatest extent on the basis of meeting the heating demand, improve the energy utilization efficiency, and achieve reasonable, efficient and safe control of the temperature of the target area. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 A schematic application scenario diagram of the fault locating method according to the embodiments of the present disclosure is shown;

[0021] Figure 2 A schematic flowchart of the fault locating method according to the embodiments of the present disclosure is shown;

[0022] Figure 3A A flowchart of the automatic opening of the air-warming assembly according to an embodiment of the present disclosure is schematically shown;

[0023] Figure 3B A flowchart of the automatic closing of the air-warming assembly according to an embodiment of the present disclosure is schematically shown;

[0024] Figure 4 A flowchart of a fault locating method according to another embodiment of the present disclosure is schematically shown;

[0025] Figure 5 A flowchart of a fault locating method according to yet another embodiment of the present disclosure is schematically shown;

[0026] Figure 6 A structural block diagram of a fault locating apparatus according to an embodiment of the present disclosure is schematically shown; and

[0027] Figure 7 A block diagram of an electronic device suitable for implementing the fault locating method according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0028] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood, however, that the description which follows is merely exemplary and is not intended to limit the scope of the present disclosure. In the following detailed description of the embodiments of the present disclosure, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it would be apparent to one skilled in the art that the embodiments of the present disclosure can be practiced without these specific details. In other instances, well-known structures and methods are not described in detail in order to avoid unnecessarily obscuring the concepts of the present disclosure.

[0029] The terms used herein are merely used to describe specific embodiments and are not intended to limit the present disclosure. The terms "include", "comprise", and the like used herein indicate the presence of the described features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0030] All terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having meanings consistent with the context of the present description, and should not be interpreted in an idealized or excessively formal manner.

[0031] In the case of using expressions similar to "at least one of A, B, and C, etc.", it generally should be interpreted to include any one of A, B, or C, a combination of A, B, and C, or a combination of at least one of A, B, and C with additional elements not listed.

[0032] It should be noted that the fault locating method and device of the present disclosure can be used in the field of intelligent temperature control technology, and can also be used in any field other than intelligent temperature control. The application field of the fault locating method and device of the present disclosure is not limited.

[0033] In the technical solutions of the present disclosure, the user information (including but not limited to user personal information, user image information, user equipment information such as location information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved are all information and data authorized by the user or authorized by all parties, and the collection, storage, use, processing, transmission, provision, disclosure and application of related data comply with relevant laws, regulations and standards in relevant regions, necessary security measures are taken, public order and good customs are not violated, and appropriate operation portals are provided for users to choose authorization or refusal.

[0034] When the outdoor temperature is low, frequent opening and closing of doors and windows will directly cause heat loss in the area near the doors and windows. If only the air conditioning temperature is adjusted to make up for the heat loss caused by opening the door, the air conditioner needs a certain time from receiving the temperature adjustment instruction to actually outputing the appropriate temperature. Especially when the train frequently opens and closes the door, the air conditioner may not be able to respond quickly to the heat loss caused by each opening of the door. The high air conditioning temperature setting will also cause the temperature in the car to exceed the comfortable range, causing waste of energy.

[0035] Further, a heater and a fan can be installed in the area where heat is lost to heat the area in a targeted manner to quickly make up for the heat loss. However, the continuous heating method will cause the temperature to continue to rise, not only reducing the user experience, but also causing energy waste. In addition, continuous heating will also cause equipment failure or damage. The prior art lacks an improvement on the above heating method and a fault determination method for the heater and the fan.

[0036] In view of this, embodiments of the present disclosure provide a fault location method, comprising: using a temperature sensor to detect the temperature of a target area of ​​a train to obtain a first temperature value; controlling a heating element to turn on based on the first temperature value and a first predetermined discrimination condition, so as to heat the target area by means of airflow using the heating element; maintaining the heating element in the on state when it is in the on state and a closing signal is not received from the temperature control switch, wherein the temperature control switch provides a closing signal based on the outlet air temperature of the heating element; and sending abnormal reporting information related to the heating element or the temperature control switch to a monitoring center so that the monitoring center can locate the fault based on the abnormal reporting information.

[0037] Figure 1 The diagram illustrates an application scenario of the fault location method according to an embodiment of the present disclosure.

[0038] like Figure 1 As shown, application scenario 100 according to this embodiment may include a temperature sensor 101, a temperature control switch 102, an air conditioner controller 103, and a monitoring center 104. The air conditioner controller 103 can be connected to the temperature sensor 101, the temperature control switch 102, and the monitoring center 104 via wired or wireless communication links or fiber optic cables, etc.

[0039] Temperature sensor 101 can be used to collect the temperature of the target area of ​​the train and transmit the collected first temperature value to air conditioning controller 103; temperature control switch 102 can be used to collect the temperature of the air outlet of the heating component and transmit the collected second temperature value to air conditioning controller 103.

[0040] The air conditioning controller 103 is used to control the opening and closing of the heating component based on a first temperature value according to a predetermined discrimination condition, and to obtain a closing signal based on a second temperature value.

[0041] The monitoring center 104 is used to receive abnormal reports and historical temperature values ​​sent by the air conditioning controller, and to locate faults based on the abnormal reports and historical temperature values.

[0042] It should be understood that Figure 1 The number of temperature sensors, temperature control switches, air conditioning controllers, and monitoring centers shown is merely illustrative. Depending on the implementation requirements, any number of temperature sensors, temperature control switches, air conditioning controllers, and monitoring centers can be used. The air conditioning controllers and monitoring centers can be configured on the train or on the ground; this disclosure makes no limitation thereto.

[0043] The following will be based on Figure 1 The described scene, through Figure 2 The fault location method of the disclosed embodiments is described in detail.

[0044] Figure 2 A flowchart of a fault positioning method according to an embodiment of the present disclosure is shown schematically.

[0045] As Figure 2 shown, the fault positioning method of this embodiment includes operations S210-S240.

[0046] In operation S210, a temperature sensor is used to detect the temperature of a target area of the train, obtaining a first temperature value.

[0047] According to an embodiment of the present disclosure, the target area is an area in the train that exchanges heat with the external environment. The target area can be an area near the train door (passing platform) or an area near the train window, etc.

[0048] According to an embodiment of the present disclosure, the temperature sensor can be installed at any position within the target area for real-time monitoring of the temperature value of the target area, where the position should be an area that can most directly and accurately express the temperature perceived by the human body. For example, it can be installed on the top of the carriage above the passing platform (close to the human head), or on the side of the passing platform (close to the human torso).

[0049] According to an embodiment of the present disclosure, the warm air assembly is configured within or near the target area, so that the fan can directly blow hot air flow to the target area through the air outlet, reducing the loss of hot air flow spreading to other areas.

[0050] In operation S220, according to the first temperature value and a first predetermined discrimination condition, the warm air assembly is controlled to be turned on so as to heat the target area by flowing air using the warm air assembly.

[0051] According to an embodiment of the present disclosure, only in the case where the air conditioning mode is the heating mode, the air conditioning controller is allowed to control the warm air assembly to be automatically turned on.

[0052] According to an embodiment of the present disclosure, the warm air assembly can include an electric heater and a fan, wherein the electric heater is used to heat air, and the fan is connected with the electric heater and is used to blow the heated hot air to the target area to achieve heating of the target area by air flow, so as to make up for the heat loss due to heat exchange with the external cold air.

[0053] According to an embodiment of the present disclosure, the first predetermined discrimination condition can be a temperature-related discrimination condition, or a time-related discrimination condition, or a combination of the two dimensions. Specifically, the warm air assembly can be controlled to be turned on in the case where the first temperature value is lower than a predetermined temperature threshold; or the warm air assembly can be controlled to be turned on in the case where the first temperature value lasts for a predetermined time, etc.

[0054] In operation S230, in the case that the warm air assembly is in the open state and the closing signal feedback by the temperature control switch cannot be received, the open state of the warm air assembly is maintained, wherein the temperature control switch feeds back the closing signal according to the outlet temperature of the warm air assembly.

[0055] According to an embodiment of the present disclosure, the temperature control switch is arranged at the outlet position of the warm air assembly, for detecting the outlet temperature of the warm air assembly in real time, and feeding back the signal of whether the temperature control switch is closed according to the outlet temperature. If the temperature meets the predetermined condition, the two terminals of the temperature control switch are conductive, the temperature control switch is in the closed state, and the closing signal is fed back to the air conditioner controller; if the temperature does not meet the predetermined condition, the two terminals of the temperature control switch are not conductive, the temperature control switch is in the open state, and the closing signal cannot be fed back to the air conditioner controller.

[0056] According to an embodiment of the present disclosure, in the case that the warm air assembly has been opened for a predetermined time, if the closing signal feedback by the temperature control switch is not received, the open state of the warm air assembly is still maintained. The predetermined time can be 5 minutes, 8 minutes, 10 minutes, 15 minutes, etc.

[0057] Normally, after the warm air assembly is controlled to be opened according to the first temperature value detected by the temperature sensor, the temperature of the target area will rise in a short time to make up for the heat loss. For example, the first temperature value is detected to be 20°C, the warm air assembly is controlled to be opened, and the temperature of the target area will rise to the predetermined temperature in a short time (for example, 5 minutes) because the warm air is directly blown to the target area.

[0058] Therefore, according to historical experience and air heat conduction rules, the time threshold is set, and if the second temperature value of the outlet does not rise to the preset outlet reference temperature threshold value when the time threshold is exceeded, it indicates that there is a device failure. For example, the first temperature value is detected to be 20°C, the warm air assembly is controlled to be opened, and the second temperature value of the outlet does not rise to the preset outlet reference temperature threshold value when the warm air assembly is continuously opened for 15 minutes, which determines that there is a failure and fault positioning is needed.

[0059] When it is determined that there is a device failure, the processing method in the related art can be, for example, directly stopping the device with the failure, and further determining the failure device and the failure cause after all devices stop working to avoid other problems caused by the device failure, such as the short circuit of the warm air assembly. However, once the work of the warm air assembly is stopped, the temperature of the target area will rapidly decrease in the case of heat loss.

[0060] Unlike the method in the related art, in the embodiment of the present disclosure, even if it is determined that there is a fault in the device, the air conditioner controller does not stop the operation of the warm air assembly and continues to maintain the open state of the warm air assembly. This is because, in the embodiment of the present disclosure, the opening and closing of the warm air assembly and the determination of the fault of the warm air assembly are independent of each other and do not interfere with each other.

[0061] Specifically, the air conditioner controller relies on the first temperature value detected by the temperature sensor when controlling the opening of the warm air assembly. The temperature sensor monitors the temperature in real time and feeds back the corresponding temperature value (that is, the first temperature value) to the air conditioner controller, and the air conditioner controller determines whether to open the warm air assembly and how to adjust the operating state according to the value, so as to ensure that the warm air assembly can start working normally and maintain operation. And in determining whether the warm air assembly has a fault, the air conditioner controller relies on the closed signal detected by the temperature control switch. Whether there is a fault in the device is determined through the closed signal. In this stage, it is not necessary to determine the fault device and the fault reason.

[0062] Because they work independently and do not interfere with each other, it is possible to exclude the stoppage of the warm air assembly due to faults caused by other reasons. For example, if the temperature control switch fails to detect the temperature, but the warm air assembly is actually working normally, if it is stopped, it is difficult to provide warm air when there is heat loss. The present disclosure does not stop the operation of the device, and the warm air assembly continues to work until the warm air assembly meets the shutdown condition. Thus, the temperature of the target area can be reasonably controlled. In addition, the automatic closing of the warm air assembly can also be controlled according to the temperature sensor, and over-heating or resource waste caused by continuous heating can be avoided.

[0063] In operation S240, abnormal report information related to the warm air assembly or the temperature control switch is sent to the monitoring center, so that the monitoring center locates the fault according to the abnormal report information.

[0064] According to the embodiment of the present disclosure, the number of times that the closed signal feedback of the temperature control switch cannot be received is calculated, and in the case that the number of times reaches a report number threshold, abnormal report information related to the warm air assembly or the temperature control switch is sent to the monitoring center, so that the monitoring center locates the fault according to the abnormal report information.

[0065] According to the embodiment of the present disclosure, if the processing method in the related art is directly used to shut down the device that has a fault, once a device or component has a fault, the work of the entire warm air assembly is likely to be directly stopped, which causes the warm air assembly to stop heating the target area.

[0066] However, in the embodiments of this disclosure, the start / stop and fault determination of the heating element are independent and do not affect each other. The heater is controlled to turn on based on a temperature sensor, and a fault is determined based on a temperature control switch. Therefore, it is possible to effectively avoid the entire heating element stopping inexplicably due to a local fault (such as a faulty temperature control switch). The approach of this disclosure is to not stop the equipment; as long as the electric heater does not malfunction, it can continue to work, continuously providing heat to the target area, maintaining temperature stability as much as possible, avoiding large temperature fluctuations, and ensuring a suitable temperature environment in the target area until the pre-set shutdown conditions of the heating element are met, at which point the heating element will stop working. The automatic shutdown of the heating element is controlled by a temperature sensor. The temperature sensor monitors the temperature of the target area in real time and feeds back the corresponding temperature value to the air conditioning controller. When the temperature rises to a set reasonable upper limit, the air conditioning controller receives this signal and triggers the shutdown operation of the heating element, stopping the electric heater, stopping the fan, etc., causing the entire heating element to stop working. This approach prevents excessively high temperatures in the target area due to uncontrolled heating, thus avoiding potential safety hazards (such as fires or burns caused by overheating). It also prevents unnecessary resource waste. Continuous heating consumes significant amounts of electricity and other energy, while precise temperature control via temperature sensors ensures that heating needs are met while maximizing energy efficiency and achieving reasonable, efficient, and safe temperature control of the target area.

[0067] According to an embodiment of this disclosure, the fault location method further includes: controlling the heating element to shut down based on a first temperature value and a second predetermined discrimination condition, so as to stop heating the target area.

[0068] Figure 3A A flowchart illustrating the automatic activation of the heating assembly according to an embodiment of the present disclosure is shown. Figure 3B A flowchart illustrating the automatic shutdown of the heating assembly according to an embodiment of the present disclosure is shown schematically.

[0069] like Figure 3A As shown, the first predetermined discrimination condition is: the temperature difference between the first temperature value and the first reference temperature is less than or equal to the first temperature threshold, and the duration is greater than or equal to the first time threshold.

[0070] For example, the temperature sensor detects a first temperature value of 23°C, which is maintained for 60 seconds; the first reference temperature is 25°C; the first temperature threshold is 1°C; and the first time threshold is 30 seconds. The heater assembly is then activated.

[0071] For example, the temperature sensor detects a first temperature value of 24.5°C and maintains it for 60 seconds, the first reference temperature is 25°C, the first temperature threshold is 1°C, and the first time threshold is 60 seconds. There is no need to control the heater assembly to turn on.

[0072] For example, the temperature sensor detects a first temperature value of 23°C, which is maintained for 10 seconds before rising to 25°C. The first reference temperature is 25°C, the first temperature threshold is 1°C, and the first time threshold is 60 seconds. There is no need to control the heater assembly to turn on.

[0073] like Figure 3B As shown, the second predetermined discrimination condition is: the temperature difference between the first temperature value and the second reference temperature is greater than or equal to the second temperature threshold, and the duration is greater than or equal to the second time threshold.

[0074] For example, the temperature sensor detects a first temperature value of 26°C, which is maintained for 60 seconds; the first reference temperature is 25°C; the first temperature threshold is 1°C; and the first time threshold is 30 seconds. The heater assembly is then controlled to shut off.

[0075] For example, the temperature sensor detects a first temperature value of 25.5°C and maintains it for 60 seconds, the first reference temperature is 25°C, the first temperature threshold is 1°C, and the first time threshold is 60 seconds. There is no need to control the heater assembly to shut off.

[0076] For example, the temperature sensor detects a first temperature value of 27°C, which is maintained for 10 seconds and then drops to 25°C. The first reference temperature is 25°C, the first temperature threshold is 1°C, and the first time threshold is 60 seconds. There is no need to control the heater assembly to turn off.

[0077] According to embodiments of this disclosure, the first reference temperature and the second reference temperature may be the same or different, the first temperature threshold and the second temperature threshold may be the same or different, and the first time threshold and the second time threshold may be the same or different.

[0078] According to embodiments of this disclosure, the first reference temperature or the second reference temperature can be preset based on experience, or it can be calculated in real time based on the overall vehicle temperature. Specifically, each air conditioning unit has a fresh air temperature sensor at its fresh air inlet. The air conditioning controller collects the values ​​from these sensors and sends them to the Train Control System (TCMS). The TCMS takes the average fresh air temperature of the entire train and sends it to the air conditioning controller. The air conditioning controller then converts the average value according to the UIC533 curve and uses it as the first or second reference temperature. The first or second reference temperature changes in real time.

[0079] According to an embodiment of the present disclosure, the temperature control switch feeds back a closing signal according to the outlet air temperature of the air heating assembly, comprising: temperature detection of the outlet of the air heating assembly by the temperature control switch, to obtain a second temperature value.

[0080] According to an embodiment of the present disclosure, in the case where the target area is in a closed state, temperature detection of the outlet of the air heating assembly is performed by the temperature control switch. The target area being a closed area can be that, when the target area is a train passing platform, a door closing signal is detected; or when the target area is near a train window, a window closing signal is detected.

[0081] If the second temperature value reaches the outlet reference temperature threshold value, the temperature control switch is closed, and a closing signal is generated to feed back to the air conditioner controller, wherein the outlet reference temperature threshold value is greater than the first reference temperature.

[0082] If the second temperature value does not reach the outlet reference temperature threshold value, the temperature control switch is opened, and the closing signal cannot be fed back to the air conditioner controller.

[0083] According to an embodiment of the present disclosure, the temperature control switch detects the temperature of the outlet of the air heating assembly to obtain a second temperature value. It has elements that can sense temperature changes, such as bimetallic strips or thermistors, etc. These elements will change their physical properties (such as shape, resistance, etc.) with temperature changes. The detected second temperature value is compared with the pre-set outlet reference temperature threshold value. When the second temperature value reaches the outlet reference temperature threshold value, the mechanical or electronic structure inside the temperature control switch will make the switch closed, and a closing signal is generated. When the second temperature value does not reach the outlet reference temperature threshold value, the switch remains open, and the closing signal cannot be fed back. For example, for a bimetallic strip temperature control switch, when the temperature rises to the threshold value, the bimetallic strip deforms due to heat, causing the contacts to close; for a thermistor temperature control switch, the resistance change of the thermistor will cause the voltage or current change in the circuit, when the temperature reaches the threshold value, the circuit state changes, causing the switch to close.

[0084] According to an embodiment of the present disclosure, the temperature control switch plays a role of signal feedback. It feeds back the information of whether the temperature of the outlet reaches the set threshold value to the air conditioner controller in the form of a closing signal or no closing signal. The air conditioner controller can understand the real-time state of the outlet temperature of the air heating assembly according to this signal, to confirm whether there is a device failure.

[0085] Exemplarily, when the temperature control switch detects the temperature of the air outlet of the air heating assembly, the detected second temperature value is 28°C. At this time, because 28°C is less than 30°C (the air outlet reference temperature threshold is not reached), the temperature control switch remains in an open state and cannot feed back a closed signal to the air conditioner controller. The air conditioner controller can determine that the air outlet temperature has not reached the corresponding threshold requirement at this time by receiving relevant information indicating that the switch is open, or can determine that the air outlet temperature has not reached the corresponding threshold requirement at this time by not receiving the closed signal within a predetermined time. After a period of heating, the temperature control switch detects again, and this time the obtained second temperature value is 30°C, which has reached the set air outlet reference temperature threshold. At this time, the temperature control switch is closed and generates a closed signal to feed back to the air conditioner controller. After receiving the closed signal, the air conditioner controller confirms that the air outlet temperature has reached the requirement.

[0086] According to embodiments of the present disclosure, the situation in which the closed signal feedback by the temperature control switch cannot be received includes: the air heating assembly is faulty, and the air outlet temperature does not reach the air outlet temperature threshold; or the temperature control switch is faulty and cannot feed back the closed signal.

[0087] According to embodiments of the present disclosure, the fault reason can be that the heating wire of the electric heater in the air heating assembly is partially broken or seriously aged. When the heating wire is broken, the electric current cannot normally pass through the entire heating wire, resulting in a large decrease in heating power. The heating capacity that can normally make the air outlet temperature reach the air outlet temperature threshold within a normal time is lost, and the temperature cannot be raised to the extent that the temperature control switch is closed. Even if the air heating assembly is always running, the air outlet temperature can always be at a low level, so that the temperature control switch cannot be triggered to close.

[0088] According to embodiments of the present disclosure, the fault reason can be that the fan in the air heating assembly is faulty. If the air duct of the air heating assembly is blocked by foreign matter, hot air cannot smoothly pass through the air duct to reach the air outlet. Or, when the fan in the air heating assembly does not work or has too low a rotating speed, hot air cannot be blown out in time. In this way, the temperature of the air outlet is always low, and the air outlet temperature cannot reach the threshold.

[0089] According to embodiments of the present disclosure, the fault reason can be that the temperature control switch is faulty, for example, the internal comparison circuit is faulty, the mechanical part is faulty, or the signal transmission line is faulty. In this case, even if the air outlet temperature has reached or exceeded the air outlet temperature threshold, the closed signal cannot be fed back.

[0090] Figure 4 A flow chart of a fault positioning method according to another embodiment of the present disclosure is schematically shown.

[0091] As Figure 4As shown, the fault positioning method further comprises operation S410 and operation S420 on the basis of operations S210-S240.

[0092] In operation S410, the monitoring center receives the abnormality reporting information and obtains a plurality of historical temperature values obtained by temperature detection of the target area by the temperature sensor in a predetermined historical time period.

[0093] According to embodiments of the present disclosure, the abnormality reporting information is various abnormal situations of components such as the air heating assembly, the temperature sensor, and the temperature controller. For example, component abnormality or temperature abnormality.

[0094] According to embodiments of the present disclosure, the temperature sensor is always detecting the temperature of the target area, and continuously records a plurality of temperature values at certain time intervals in a predetermined historical time period to obtain a plurality of historical temperature values. The monitoring center obtains these historical temperature values.

[0095] In operation S420, fault positioning is performed according to the plurality of historical temperature values and the abnormality reporting information.

[0096] According to embodiments of the present disclosure, after obtaining these data, the monitoring center accurately determines the faulty equipment by analyzing the change trend and value of the plurality of historical temperature values, and combining the specific abnormal content prompted by the abnormality reporting information.

[0097] According to embodiments of the present disclosure, the fault positioning according to the plurality of historical temperature values and the abnormality reporting information comprises: if at least one historical temperature value reaches a first reference temperature in a predetermined historical time period, determining that the temperature control switch is faulty.

[0098] For example, the abnormality reporting information indicates that the temperature control switch may be faulty, and the monitoring center finds, by checking the historical temperature values, that the temperature value has been continuously rising and has exceeded the normal temperature control range (for example, the highest temperature is set to 40℃, but the temperature value has reached 45℃ and is still rising) in the past half hour (predetermined historical time period). This further verifies that the air heating assembly is operating normally and can cause the temperature to rise to the first reference temperature, but cannot feed back the closed signal due to the fault of the temperature control switch.

[0099] If the plurality of historical temperature values do not reach the first reference temperature in the predetermined historical time period, it is determined that the air heating assembly is faulty.

[0100] For example, the monitoring center analyzes historical temperature values and finds that the temperature has hardly risen in the past 20 minutes (e.g., always maintained at about 18°C, which should normally rise to about 25°C), and thus, in combination with the working principle of the related equipment, it can be inferred that the heating element in the warm air assembly may have failed, resulting in the inability to normally heat and rise in temperature, thereby completing the preliminary judgment of fault location and providing an accurate basis for subsequent maintenance and the like.

[0101] According to an embodiment of the present disclosure, it is determined whether fault detection is needed according to the first temperature value detected by the temperature sensor. A fault detection temperature threshold value is set, which may, for example, be 14°C to 20°C. When the first temperature value is less than or equal to the fault detection temperature threshold value, fault detection is not needed; when the first temperature value is greater than the fault detection temperature threshold value, it is determined that fault detection is needed. According to an embodiment of the present disclosure, when the first temperature value of the target area is less than or equal to the fault detection temperature threshold value, the heating capacity of the warm air assembly is limited due to the low ambient temperature. Although the heater is working, the heat raising effect is not ideal. The heat generated in this case is not enough to make the temperature of the air outlet reach the second reference temperature. Because the temperature condition required for the closing of the temperature control switch is not reached, the contacts of the temperature control switch will not be closed. This is the normal system performance, and is not because the temperature control part of the typhoon fan heater is faulty. That is, fault detection when the first temperature value is less than or equal to the fault detection temperature threshold value is prone to result in inaccurate fault location results. When the first temperature value of the target area is greater than the fault detection temperature threshold value, the ambient temperature condition is relatively good. At this time, if the warm air assembly is working normally, the heat generated by it can ensure that the temperature of the air outlet reaches the second reference temperature. But actually, the second reference temperature is not reached under the predetermined time condition, and fault diagnosis at this time can exclude non-equipment factors to ensure the accuracy of the fault location results.

[0102] Figure 5 A flowchart of a fault location method according to still another embodiment of the present disclosure is schematically shown.

[0103] As shown in Figure 5 , the fault location method includes operations S510 to S580.

[0104] In operation S510, it is determined whether to perform fault detection according to the first temperature value detected by the temperature sensor. In the case where the first temperature value is less than or equal to the fault detection temperature threshold value, fault detection is not performed; in the case where the first temperature value is greater than the fault detection temperature threshold value, fault detection is performed.

[0105] In operation S520, in the case of performing fault detection, a door closing signal is detected, and in the case of receiving the door closing signal, a second temperature value detected by the temperature control switch on the outlet temperature is obtained. In the case that the second temperature value is greater than the fault detection temperature threshold and the door closing signal is detected, fault judgment is performed.

[0106] In operation S530, in the case of receiving the closing signal fed back by the temperature control switch, it is determined that the air heating assembly is working normally; in the case of not receiving the closing signal within a predetermined time, a fault is recorded once, and when the number of faults accumulates to a preset number (for example, 5 times), abnormal information is reported to the monitoring center.

[0107] Based on the above fault positioning method, the disclosure also provides a fault positioning device. The following will be described in detail in combination with Figure 6 the device.

[0108] Figure 6 The structure block diagram of the fault positioning device according to the embodiment of the disclosure is schematically shown.

[0109] As Figure 6 shown, the fault positioning device 600 of the embodiment includes a first temperature detection module 610, a first control module 620, a second control module 630, and a reporting module 640.

[0110] The first temperature detection module 610 is configured to detect the temperature of a target area of the train by using a temperature sensor to obtain a first temperature value. In an embodiment, the first temperature detection module 610 can be configured to perform operation S210 described above, and details are not repeated here.

[0111] The first control module 620 is configured to control the air heating assembly to be turned on according to the first temperature value and a first predetermined judgment condition, so as to heat the target area by flowing air by using the air heating assembly. In an embodiment, the first control module 620 can be configured to perform operation S220 described above, and details are not repeated here.

[0112] The second control module 630 is configured to maintain the open state of the air heating assembly in the case that the air heating assembly is in the open state and the closing signal fed back by the temperature control switch cannot be received, wherein the temperature control switch feeds back the closing signal according to the outlet temperature of the air heating assembly. In an embodiment, the second control module 630 can be configured to perform operation S230 described above, and details are not repeated here.

[0113] The reporting module 640 is configured to send abnormal reporting information related to the air heating assembly or the temperature control switch to the monitoring center, so that the monitoring center performs fault positioning according to the abnormal reporting information. In an embodiment, the reporting module 640 can be configured to perform operation S240 described above, and details are not repeated here.

[0114] According to the embodiment of the present disclosure, the existence of the fault is determined by controlling the heater to be turned on according to the temperature sensor. Thus, the situation that the entire heating assembly is stopped from running due to a certain local fault (such as a fault of the temperature control switch) can be effectively avoided. The present disclosure does not stop the device from running, as long as the electric heater does not have a fault, it can continue to work, continuously provide heat for the target area, maintain the temperature as stable as possible, avoid the temperature from fluctuating greatly, ensure that there is a suitable temperature environment in the target area at all times, and the heating assembly will stop working only when the closing condition originally set for the heating assembly is met. The automatic closing of the heating assembly is controlled by the temperature sensor. The temperature sensor will monitor the temperature of the target area in real time and feed back the corresponding temperature value to the air conditioner controller. When the temperature rises to the set reasonable upper limit value, the air conditioner controller receives this signal and triggers the operation of closing the heating assembly, so that the electric heater stops heating, the fan stops blowing, and the like, so that the entire heating assembly stops working. In this way, the situation that the target area temperature is too high due to continuous heating without reasonable control is avoided, and the potential safety hazards (such as fire caused by overheating, burns, etc.) are avoided, and unnecessary resource waste is also prevented. After all, continuous heating will consume a large amount of energy and other resources, and accurate control of the closing time by the temperature sensor can maximize energy saving, improve energy utilization efficiency, and achieve reasonable, efficient, and safe control of the temperature of the target area.

[0115] According to the embodiment of the present disclosure, the first predetermined determination condition includes a first reference temperature, and the temperature control switch feeds back a closing signal according to the outlet temperature of the heating assembly, including:

[0116] The temperature control switch is used to detect the temperature of the outlet of the heating assembly to obtain a second temperature value; if the second temperature value reaches an outlet reference temperature threshold, the temperature control switch is closed and a closing signal is generated to be fed back to the air conditioner controller, wherein the outlet reference temperature threshold is greater than the first reference temperature; if the second temperature value does not reach the outlet reference temperature threshold, the temperature control switch is opened and cannot feed back the closing signal to the air conditioner controller.

[0117] According to the embodiment of the present disclosure, the situation that the closing signal fed back by the temperature control switch cannot be received includes that the heating assembly is faulty and the outlet temperature does not reach the outlet temperature threshold, or the temperature control switch is faulty and cannot feed back the closing signal.

[0118] According to the embodiment of the present disclosure, the fault positioning device further includes an acquisition module and a fault positioning module.

[0119] The acquisition module is configured to acquire a plurality of historical temperature values obtained by detecting the temperature of the target region by using the temperature sensor in a predetermined historical time period while receiving the abnormality reporting information at the monitoring center; and the fault locating module is configured to locate the fault according to the plurality of historical temperature values and the abnormality reporting information.

[0120] According to an embodiment of the present disclosure, the fault locating module comprises a first determining submodule and a second determining submodule.

[0121] The first determining submodule is configured to determine that the temperature control switch is faulty if at least one historical temperature value reaches a first reference temperature in the predetermined historical time period.

[0122] The second determining submodule is configured to determine that the warm air assembly is faulty if the plurality of historical temperature values do not reach the first reference temperature in the predetermined historical time period.

[0123] According to an embodiment of the present disclosure, the fault locating device further comprises a third control module.

[0124] The third control module is configured to control the warm air assembly to be turned off to stop heating the target region according to the first temperature value and a second predetermined judgment condition.

[0125] According to an embodiment of the present disclosure, the first predetermined judgment condition is that a temperature difference between the first temperature value and the first reference temperature is less than or equal to a first temperature threshold value and a duration is greater than or equal to a first time threshold value; and the second predetermined judgment condition is that a temperature difference between the first temperature value and a second reference temperature is greater than or equal to a second temperature threshold value and a duration is greater than or equal to a second time threshold value.

[0126] According to an embodiment of the present disclosure, the target region is a region in the train that exchanges heat with the external environment.

[0127] According to an embodiment of the present disclosure, any of the first temperature detecting module 610, the first control module 620, the second control module 630 and the reporting module 640 can be combined in one module, or any of them can be split into multiple modules. Alternatively, at least part of the function of one or more of these modules can be combined with at least part of the function of the other modules, and implemented in one module. According to an embodiment of the present disclosure, at least one of the first temperature detecting module 610, the first control module 620, the second control module 630 and the reporting module 640 can be at least partially implemented as a hardware circuit, such as a field programmable gate array (FPGA), a programmable logic array (PLA), a system on chip, a system on board, a system on package, an application specific integrated circuit (ASIC), or any other reasonable way of hardware or firmware that can be integrated or packaged with a circuit, or implemented in any one of software, hardware and firmware or in a proper combination of any of them. Alternatively, at least one of the first temperature detecting module 610, the first control module 620, the second control module 630 and the reporting module 640 can be at least partially implemented as a computer program module that can perform the corresponding function when it is run.

[0128] Figure 7 A block diagram of an electronic device suitable for implementing the fault locating method according to an embodiment of the present disclosure is schematically shown.

[0129] As shown in Figure 7 , the electronic device 700 according to an embodiment of the present disclosure includes a processor 701 that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 702 or a program loaded from a storage portion 708 into a random access memory (RAM) 703. The processor 701 can include, for example, a general-purpose microprocessor (such as a CPU), an instruction set processor and / or a related chipset, and / or a special-purpose microprocessor (such as an application specific integrated circuit (ASIC)), and the like. The processor 701 can also include an on-board memory for cache use. The processor 701 can include a single processing unit or multiple processing units for performing different actions of the method processes according to an embodiment of the present disclosure.

[0130] In the RAM 703, various programs and data required for the operation of the electronic device 700 are stored. The processor 701, the ROM 702, and the RAM 703 are connected to each other via the bus 704. The processor 701 performs various operations of the method flow according to the embodiments of the present disclosure by executing the programs in the ROM 702 and / or the RAM 703. It should be noted that the programs can also be stored in one or more memories other than the ROM 702 and the RAM 703. The processor 701 can also perform various operations of the method flow according to the embodiments of the present disclosure by executing the programs stored in the one or more memories.

[0131] According to an embodiment of the present disclosure, the electronic device 700 can further include an input / output (I / O) interface 705, which is also connected to the bus 704. The electronic device 700 can further include one or more of the following components connected to the I / O interface 705: an input part 706 including a keyboard, a mouse, etc.; an output part 707 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage part 708 including a hard disk, etc.; and a communication part 709 including a network interface card such as a LAN card, a modem, etc. The communication part 709 performs communication processing via a network such as the Internet. A drive 710 is also connected to the I / O interface 705 as necessary. A removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is mounted on the drive 710 as necessary, so that a computer program read out therefrom is installed in the storage part 708 as necessary.

[0132] The present disclosure also provides a computer readable storage medium, which can be included in the device / apparatus / system described in the above embodiments; or can exist separately without being assembled into the device / apparatus / system. The above computer readable storage medium carries one or more programs, when the one or more programs are executed, the method according to the embodiments of the present disclosure is implemented.

[0133] According to an embodiment of the present disclosure, the computer readable storage medium can be a nonvolatile computer readable storage medium, for example, can include, but is not limited to, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any appropriate combination thereof. In the present disclosure, the computer readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device. For example, according to an embodiment of the present disclosure, the computer readable storage medium can include one or more memories, such as the ROM 702 and / or the RAM 703 described above, and / or one or more memories other than the ROM 702 and the RAM 703.

[0134] Embodiments of the present disclosure also include a computer program product, which includes a computer program containing program codes for executing the methods shown in the flowcharts. When the computer program product is run in a computer system, the program codes are used to make the computer system implement the item recommendation method provided by the embodiments of the present disclosure.

[0135] The above-described functions defined in the system / device of the embodiments of the present disclosure are performed when the computer program is executed by the processor 701. According to an embodiment of the present disclosure, the system, device, module, unit, etc. described above can be implemented by computer program modules.

[0136] In one embodiment, the computer program can rely on tangible storage media such as optical storage media, magnetic storage media, etc. In another embodiment, the computer program can also be transmitted, distributed, and downloaded in the form of signals on network media, and be downloaded and installed through the communication part 709, and / or installed from the detachable medium 711. The program codes contained in the computer program can be transmitted by any appropriate network media, including but not limited to wireless, wired, etc., or any appropriate combination thereof.

[0137] In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 709, and / or installed from the detachable medium 711. When the computer program is executed by the processor 701, the above-described functions defined in the system of the embodiments of the present disclosure are performed. According to an embodiment of the present disclosure, the system, device, apparatus, module, unit, etc. described above can be implemented by computer program modules.

[0138] According to embodiments of the present disclosure, program code of the computer program for performing the methods provided by the embodiments of the present disclosure can be written in any combination of one or more programming languages, and can be implemented in a computer program product. Specifically, the computer program can be implemented in a high-level procedural and / or object-oriented programming language, and / or in assembly / machine language. The programming language includes, but is not limited to, Java, C++, python, “C” language, or similar programming languages. The program code can execute entirely on the user's computing device, partly on the user's device, and partly on a remote computing device, or entirely on the remote computing device or server. In the latter scenario, the remote computing device can be connected to the user's computing device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computing device, such as through the Internet using an Internet Service Provider (ISP).

[0139] The computer program product of the present disclosure can be a computer program product, which is a machine-readable medium (or computer readable medium) having stored therein a sequence of instructions executable by a machine such as a personal digital assistant (PDA), a laptop, a desktop computer, or a server. Alternatively, the computer program product can be a propagated signal per se generated by using the program code, and the program code can be stored on a machine-readable medium that can be read by a machine such as a personal digital assistant (PDA), a laptop, a desktop computer, or a server. The program code of the computer program product defines a function, preferably a corresponding action, and / or implements the elements / object / means for performing this function or a part thereof as disclosed in the embodiments of the present disclosure. The program code can be executed by using one or more processors.

[0140] Those skilled in the art will appreciate that features of the various embodiments and / or claims of the present disclosure can be combined or / and integrated with one another, even though such combinations or integrations are not expressly disclosed in the present disclosure. In particular, the features of the various embodiments and / or claims of the present disclosure can be combined and / or integrated with one another in any manner, without departing from the spirit and scope of the present disclosure. All such combinations and / or integrations are within the scope of the present disclosure.

[0141] The above describes embodiments of the present disclosure. However, these embodiments are merely for illustrative purposes, and are not intended to limit the scope of the present disclosure. Although each embodiment is described above separately, this does not mean that the measures in each embodiment cannot be used advantageously in combination. The scope of the present disclosure is defined by the appended claims and their equivalents. Those skilled in the art can make various substitutions and modifications without departing from the scope of the present disclosure, and these substitutions and modifications should all fall within the scope of the present disclosure.

Claims

1. A method for fault locating, comprising: detecting a target area of a train by a temperature sensor to obtain a first temperature value; controlling a heating assembly to be turned on to heat the target area by flowing air according to the first temperature value and a first predetermined criterion; maintaining the heating assembly in an on state when the heating assembly is in the on state and a close signal from a temperature control switch cannot be received, wherein the temperature control switch feeds back the close signal according to an outlet temperature of the heating assembly; sending abnormal report information related to the heating assembly or the temperature control switch to a monitoring center to enable the monitoring center to locate a fault according to the abnormal report information.

2. The method of claim 1, wherein, The first predetermined criterion comprises a first reference temperature, The temperature control switch feeds back the close signal according to the outlet temperature of the heating assembly, comprising: detecting the outlet of the heating assembly by the temperature control switch to obtain a second temperature value; if the second temperature value reaches an outlet reference temperature threshold, the temperature control switch is closed and the close signal is generated to be fed back to an air conditioner controller, wherein the outlet reference temperature threshold is greater than the first reference temperature; if the second temperature value does not reach the outlet reference temperature threshold, the temperature control switch is opened and the close signal cannot be fed back to the air conditioner controller.

3. The method of claim 1 or 2, wherein, The situation that the temperature control switch cannot receive the close signal, comprising: the heating assembly is faulty and the outlet temperature does not reach an outlet temperature threshold; or the temperature control switch is faulty and cannot feed back the close signal. 4.The method of claim 2, further comprising: obtaining a plurality of historical temperature values detected by the temperature sensor on the target area within a predetermined historical time period when the monitoring center receives the abnormal report information; and locating the fault according to the plurality of historical temperature values and the abnormal report information.

5. The method of claim 4, wherein, Locating the fault according to the plurality of historical temperature values and the abnormal report information, comprising: if at least one historical temperature value reaches the first reference temperature within the predetermined historical time period, determining that the temperature control switch is faulty; and if the plurality of historical temperature values do not reach the first reference temperature within the predetermined historical time period, determining that the heating assembly is faulty. 6.The method of claim 1, further comprising: controlling the heating assembly to be turned off to stop heating the target area according to the first temperature value and a second predetermined criterion. 7.The method of claim 6, wherein: the first predetermined criterion is that a temperature difference between the first temperature value and a first reference temperature is less than or equal to a first temperature threshold and a duration is greater than or equal to a first time threshold; and the second predetermined criterion is that a temperature difference between the first temperature value and a second reference temperature is greater than or equal to a second temperature threshold and a duration is greater than or equal to a second time threshold.

8. The method of claim 1, wherein the target region is a region of the train that exchanges heat with an external environment.

9. A fault locating device, comprising: a first temperature detecting module configured to detect a temperature of a target region of a train using a temperature sensor to obtain a first temperature value; a first control module configured to control a start of a heating assembly based on the first temperature value and a first predetermined judgment condition, so that the target region is heated by the heating assembly through air flow; a second control module configured to maintain the start of the heating assembly in a case that the heating assembly is in a start state and a closed signal of a temperature control switch cannot be received, wherein the temperature control switch feeds back the closed signal according to an outlet temperature of the heating assembly, and a reporting module configured to send abnormal reporting information related to the heating assembly or the temperature control switch to a monitoring center, so that the monitoring center locates a fault based on the abnormal reporting information.

10. A train, comprising: the fault locating device of claim 9.

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