Fault positioning method and device and train

Abstract

The invention provides a fault positioning method which can be applied to the technical field of intelligent temperature control. The fault positioning method comprises the steps that a temperature sensor is used for conducting temperature detection on a target area of a train, and a first temperature value is obtained; according to the first temperature value and a first preset judgment condition, a warm air assembly is controlled to be started so that the warm air assembly can heat the target area by making air flow; under the condition that the warm air assembly is in the open state and a closing signal fed back by the temperature control switch cannot be received, the open state of the warm air assembly is maintained, and the temperature control switch feeds back the closing signal according to the air outlet temperature of the warm air assembly; and abnormal reporting information related to the warm air assembly or the temperature control switch is sent to a monitoring center, so that the monitoring center carries out fault positioning according to the abnormal reporting information. The invention further provides a fault positioning device and a train.

Description

Technical Field

[0001] The present disclosure relates to the field of intelligent temperature control technology, and in particular to a fault locating method, device and train. Background Art

[0002] In rail transit scenarios, train doors are frequently opened and closed. When the vehicle is operating in winter, the outside temperature is low, and a large amount of cold air will rush into the car the moment the door is opened, causing a rapid loss of heat in the car, affecting the passenger experience.

[0003] If the heat loss caused by opening the door is compensated by adjusting the air-conditioning temperature, on the one hand, the hot air sent by the air-conditioning will be difficult to be distributed quickly and evenly to every corner of the car, especially the passage area near the door; on the other hand, after the door is closed, the temperature in the car will rise too much due to the continuous heating of the air-conditioning, causing the temperature in the car to exceed the comfortable range, resulting in energy waste. Summary of the invention

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

[0005] According to the first aspect of the present disclosure, a fault location method is provided, comprising: using a temperature sensor to perform temperature detection on a target area of ​​a train to obtain a first temperature value; controlling a heater component to turn on according to the first temperature value and a first predetermined judgment condition, so as to use the heater component to heat the target area by causing air to flow; when the heater component is in an on state and cannot receive a closing signal fed back by a temperature control switch, maintaining the heater component in an on state, wherein the temperature control switch feeds back a closing signal based on the outlet temperature of the heater component; and sending abnormality reporting information related to the heater component or the temperature control switch to a monitoring center, so that the monitoring center performs fault location according to the abnormality reporting information.

[0006] According to an embodiment of the present disclosure, the first predetermined judgment condition includes a first reference temperature, and the temperature control switch feeds back a closing signal according to the outlet temperature of the warm air component, including: using the temperature control switch to detect the temperature of the air outlet of the warm air component to obtain a second temperature value; if the second temperature value reaches the reference temperature threshold of the air outlet, the temperature control switch closes and generates a closing signal to feed back to the air-conditioning controller, wherein the reference temperature threshold of the air outlet is greater than the first reference temperature; if the second temperature value does not reach the reference temperature threshold of the air outlet, the temperature control switch is disconnected and cannot feed back a closing signal to the air-conditioning controller.

[0007] According to an embodiment of the present disclosure, the situations where the closing signal fed back by the temperature control switch cannot be received include: the heater component fails and the air outlet temperature does not reach the air outlet temperature threshold; or the temperature control switch fails and the closing signal cannot be fed back.

[0008] According to an embodiment of the present disclosure, the method also includes: while the monitoring center receives the abnormal reporting information, it obtains multiple historical temperature values ​​obtained by using a temperature sensor to perform temperature detection on the target area within a predetermined historical time period; and locates the fault based on the multiple historical temperature values ​​and the abnormal reporting information.

[0009] According to an embodiment of the present disclosure, fault location is performed based on multiple historical temperature values ​​and abnormal reporting information, including: if at least one historical temperature value reaches a first reference temperature within a predetermined historical time period, it is determined that the temperature control switch is faulty; if multiple historical temperature values ​​do not reach the first reference temperature within a predetermined historical time period, it is determined that the heater component is faulty.

[0010] According to an embodiment of the present disclosure, the method further includes: controlling the heater component to be turned off to stop heating the target area according to the first temperature value and the second predetermined judgment condition.

[0011] According to an embodiment of the present disclosure, the first predetermined judgment 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; the second predetermined judgment 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.

[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] The second aspect of the present disclosure provides a fault locating device, comprising: a first temperature detection module, used to use a temperature sensor to perform temperature detection on a target area of ​​a train to obtain a first temperature value; a first control module, used to control the opening of a heater component according to the first temperature value and a first predetermined judgment condition, so as to use the heater component to heat the target area by causing air to flow; a second control module, used to maintain the heater component in the on state when the heater component is in the on state and cannot receive a closing signal fed back by a temperature control switch, wherein the temperature control switch feeds back a closing signal based on the outlet temperature of the heater component; and a reporting module, used to send abnormal reporting information related to the heater component or the temperature control switch to a monitoring center, so that the monitoring center can locate the fault based on the abnormal reporting information.

[0014] A third aspect of the present disclosure provides an electronic device, comprising: one or more processors; and a memory for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors execute the above-mentioned fault location method.

[0015] A fourth aspect of the present disclosure further provides a computer-readable storage medium having executable instructions stored thereon, which, when executed by a processor, causes the processor to execute the above-mentioned fault location method.

[0016] A fifth aspect of the present disclosure further provides a computer program product, including a computer program, which implements the above-mentioned fault location method when executed by a processor.

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

[0018] According to the embodiment of the present disclosure, the heater is turned on by controlling the temperature sensor, and the fault is determined by the temperature control switch. Thus, the situation that the entire warm air component stops operating without reason due to a local fault (such as a temperature control switch fault) can be effectively avoided. The method of the present disclosure is not to stop the operation of the equipment. As long as the electric heater does not fail, it can continue to work, continue to provide heat to the target area, maintain the temperature as stable as possible, avoid large fluctuations in temperature, and ensure that there is always a suitable temperature environment in the target area. The warm air component will not stop working until the shutdown condition originally set by the warm air component is met. The automatic shutdown of the warm air component 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 conditioning controller. When the temperature rises to the set reasonable upper limit value, the air conditioning controller receives this signal and triggers the operation of shutting down the warm air component, so that the electric heater stops heating, the fan stops supplying air, etc., so that the entire warm air component stops working. In this way, there will be no situation where the temperature of the target area is too high due to continuous heating without reasonable control, which avoids possible safety hazards (such as fire and burns caused by overheating), and also prevents unnecessary waste of resources. After all, continuous heating will consume a lot of electricity and other energy. By accurately controlling the shutdown timing through temperature sensors, it is possible to save energy to the greatest extent while meeting heating needs, improve energy utilization efficiency, and achieve reasonable, efficient and safe control of the temperature in the target area. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 The application scenario diagram of the fault location method according to the embodiment of the present disclosure is schematically shown;

[0021] Figure 2 A flowchart of a fault location method according to an embodiment of the present disclosure is schematically shown;

[0022] Figure 3A A flowchart of automatically turning on a warm air component according to an embodiment of the present disclosure is schematically shown;

[0023] Figure 3B A flowchart of automatically shutting down a warm air component according to an embodiment of the present disclosure is schematically shown;

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

[0025] Figure 5 A flow chart of a fault location method according to another embodiment of the present disclosure is schematically shown;

[0026] Figure 6 A structural block diagram of a fault location device 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 a fault location 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. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0029] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0030] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0031] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0032] It should be noted that the fault location method and device disclosed herein 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 location method and device disclosed herein is not limited.

[0033] In the technical solution of the present invention, the user information (including but not limited to user personal information, user image information, user device information, such as location information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved are all information and data authorized by the user or fully authorized by all parties, and the collection, storage, use, processing, transmission, provision, disclosure and application of the relevant data comply with the relevant laws, regulations and standards of the relevant regions, take necessary confidentiality measures, do not violate public order and good morals, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0034] When the outdoor temperature is low, frequent opening and closing of doors and windows will directly lead to heat loss in the area near the doors and windows. If the air conditioner temperature is only adjusted to compensate for the heat loss caused by opening the door, it will take a certain amount of time for the air conditioner to receive the temperature adjustment command and actually output the wind at the appropriate temperature. Especially when the train doors are opened and closed frequently, the air conditioner may not be able to respond quickly to the heat loss caused by each door opening. Setting the air conditioner temperature too high will also cause the temperature in the car to exceed the comfortable range, resulting in energy waste.

[0035] Furthermore, heaters and fans can be installed in areas with heat loss to heat the area in a targeted manner to quickly compensate for the heat loss. However, continuous heating will cause the temperature to continue to rise, which will not only reduce the user experience, but also cause 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 method for determining the failure of the heater and fan.

[0036] In view of this, an embodiment of the present disclosure provides a fault location method, comprising: using a temperature sensor to perform temperature detection on a target area of ​​a train to obtain a first temperature value; according to the first temperature value and a first predetermined judgment condition, controlling the heater component to turn on, so as to use the heater component to heat the target area by causing air to flow; when the heater component is in an on state and cannot receive a closing signal fed back by a temperature control switch, maintaining the heater component in an on state, wherein the temperature control switch feeds back a closing signal based on the outlet temperature of the heater component; and sending abnormal reporting information related to the heater component 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 application scenario diagram of the fault location method according to the embodiment of the present disclosure is schematically shown.

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

[0039] The 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 the air conditioning controller 103; the temperature control switch 102 can be used to collect the temperature of the air outlet of the warm air component and transmit the collected second temperature value to the air conditioning controller 103.

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

[0041] The monitoring center 104 is used to receive the abnormality reporting information and historical temperature values ​​sent by the air-conditioning controller, and to locate the fault according to the abnormality reporting information 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 in the embodiment is only illustrative. Any number of temperature sensors, temperature control switches, air conditioning controllers, and monitoring centers may be provided as required. The air conditioning controller and the monitoring center may be configured on the train or on the ground, and the present disclosure does not limit this.

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

[0044] Figure 2 The flowchart of the fault location method according to the embodiment of the present disclosure is schematically shown.

[0045] like Figure 2 As shown, the fault location method of this embodiment includes operations S210 to S240.

[0046] In operation S210, a temperature sensor is used to detect the temperature of a target area of ​​the train to obtain 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 (through the platform), or an area near the train window, etc.

[0048] According to the embodiments of the present disclosure, the temperature sensor can be installed at any position in the target area to monitor the temperature value of the target area in real time, wherein the position should be the 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 platform (close to the human head) or on the side of the platform (close to the human torso).

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

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

[0051] According to an embodiment of the present disclosure, only when the air-conditioning mode is the heating mode, the air-conditioning controller is allowed to control the heater component to automatically turn on.

[0052] According to an embodiment of the present disclosure, the warm air component may include an electric heater and a fan, wherein the electric heater is used to heat the air, and the fan is connected to the electric heater and is used to blow the heated hot air to the target area, so as to heat the target area through air flow to compensate for the heat loss caused by heat exchange with the external cold air.

[0053] According to the embodiments of the present disclosure, the first predetermined judgment condition may be a judgment condition related to temperature, or a judgment condition related to duration, or a combination of the two dimensions. Specifically, when the first temperature value is lower than a predetermined temperature threshold, the heating component may be controlled to be turned on; when the first temperature value lasts for a predetermined time, the heating component may be controlled to be turned on, and so on.

[0054] In operation S230, when the heater assembly is in the on state and cannot receive a closing signal fed back by the temperature control switch, the heater assembly is maintained in the on state, wherein the temperature control switch feeds back a closing signal according to the outlet air temperature of the heater assembly.

[0055] According to an embodiment of the present disclosure, the temperature control switch is arranged at the air outlet of the heater component, and is used to detect the air outlet temperature of the heater component in real time, and to feed back a signal of whether the temperature control switch is closed according to the air outlet temperature. If the temperature meets a predetermined condition, the two terminals of the temperature control switch are connected, the temperature control switch is in a closed state, and a closed 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 connected, the temperature control switch is in an open state, and a closed signal cannot be fed back to the air conditioner controller.

[0056] According to an embodiment of the present disclosure, when the heater component has been turned on for a predetermined time, if no closing signal is received from the temperature control switch, the heater component is still turned on. The predetermined time may be 5 minutes, 8 minutes, 10 minutes, 15 minutes, etc.

[0057] Under normal circumstances, after the heating component is turned on according to the first temperature value detected by the temperature sensor, the temperature of the target area will rise in a short time to compensate for the heat loss. For example, when the first temperature value is detected to be 20°C, the heating component is controlled to be turned on. Since the warm air is directly blown near the target area, the temperature of the target area will rise to the predetermined temperature in a short time (for example, 5 minutes).

[0058] Therefore, according to historical experience and the law of air heat conduction, a time threshold is set. If the second temperature value of the air outlet has not risen to the preset air outlet reference temperature threshold after exceeding the time threshold, it indicates that there is a device failure. For example, if the first temperature value is detected to be 20°C, the heater component is controlled to be turned on. If the second temperature value of the air outlet has not risen to the preset air outlet reference temperature threshold after the heater component is turned on for 15 minutes, it is determined that there is a fault and fault location is required.

[0059] When it is determined that a device has failed, the processing method in the related art may be, for example, to directly shut down the failed device, and after all devices stop working, further determine the failed device and the cause of the failure to avoid other problems caused by the device failure, such as a short circuit of the heating component. However, once the heating component stops working, the temperature of the target area will drop rapidly in the case of heat loss.

[0060] Different from the methods 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 heating component and continues to maintain the heating component on. This is because, in the embodiment of the present disclosure, the on and off of the heating component and the fault determination of the heating component are independent of each other and do not interfere with each other.

[0061] Specifically, the air conditioning controller relies on the first temperature value detected by the temperature sensor to control the opening of the heater component. 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 conditioning controller. The air conditioning controller decides whether to turn on the heater component and how to adjust its operating status based on this value to ensure that the heater component can start working normally and maintain operation. In determining whether the heater component is faulty, the air conditioning controller relies on the temperature control switch detecting a closed signal. The closed signal is used to confirm whether there is a device fault. At this stage, there is no need to determine the faulty device and the cause of the fault.

[0062] Since the two work independently and do not affect each other, it is possible to rule out the possibility that the heater component stops working due to other reasons. For example, if the temperature control switch fails and the temperature cannot be detected, but the heater component is actually working normally, then if it stops working, it will be difficult to provide warm air when there is heat loss. However, the present invention does not stop the operation of the equipment, and the heater component will continue to work until the heater component shutdown conditions are met. This ensures that the temperature in the target area is reasonably controlled. In addition, the automatic shutdown of the heater component can also be controlled according to the temperature sensor, and will not cause overheating or waste of resources caused by continuous heating.

[0063] In operation S240, abnormality reporting information related to the heating component or the temperature control switch is sent to a monitoring center, so that the monitoring center can locate the fault according to the abnormality reporting information.

[0064] According to an embodiment of the present disclosure, the number of times the closing signal fed back by the temperature control switch cannot be received is calculated. When the number reaches a reporting threshold, abnormal reporting information related to the heater component or the temperature control switch is sent to the monitoring center, so that the monitoring center can locate the fault based on the abnormal reporting information.

[0065] According to the embodiments of the present disclosure, the faulty equipment is directly shut down according to the processing method in the related art. Then, once a certain equipment or component fails, it is very likely that the operation of the entire heater assembly will be directly stopped, causing the heater assembly to stop heating the target area.

[0066] However, in the embodiment of the present disclosure, the start and stop of the warm air component and the fault determination are independent of each other and do not affect each other. The heater is turned on by controlling the temperature sensor, and the fault is determined by the temperature control switch. Thus, the situation that the entire warm air component stops operating without reason due to a local fault (such as a temperature control switch fault) can be effectively avoided. The practice of the present disclosure is not to stop the operation of the equipment. As long as the electric heater does not fail, it can continue to work and continue to provide heat to the target area, maintain the temperature as stable as possible, avoid large fluctuations in temperature, and ensure that there is always a suitable temperature environment in the target area. The warm air component will not stop working until the shutdown condition originally set by the warm air component is met. The automatic shutdown of the warm air component 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 conditioning controller. When the temperature rises to the set reasonable upper limit value, the air conditioning controller receives this signal and triggers the operation of shutting down the warm air component, so that the electric heater stops heating, the fan stops supplying air, etc., so that the entire warm air component stops working. In this way, there will be no situation where the temperature of the target area is too high due to continuous heating without reasonable control, avoiding possible safety hazards (such as fire and burns caused by overheating), and also preventing unnecessary waste of resources. After all, continuous heating consumes a lot of electricity and other energy. By accurately controlling the shutdown time through the temperature sensor, it is possible to save energy to the greatest extent on the basis of meeting the heating needs, improve energy utilization efficiency, and achieve reasonable, efficient and safe control of the temperature of the target area.

[0067] According to an embodiment of the present disclosure, the fault location method further includes: controlling the heater component to be turned off to stop heating the target area according to the first temperature value and the second predetermined judgment condition.

[0068] Figure 3A A flow chart of automatically turning on a warm air component according to an embodiment of the present disclosure is schematically shown. Figure 3B A flow chart of automatically shutting down a warm air component according to an embodiment of the present disclosure is schematically shown.

[0069] like Figure 3A As shown, the first predetermined judgment 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] Exemplarily, the first temperature value detected by the temperature sensor is 23° C. and 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 component is controlled to turn on.

[0071] Exemplarily, the first temperature value detected by the temperature sensor is 24.5° C. and maintained 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 component to turn on.

[0072] For example, the first temperature value detected by the temperature sensor is 23° C., and rises to 25° C. after being maintained for 10 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 to turn on.

[0073] like Figure 3B As shown, the second predetermined judgment 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 first temperature value detected by the temperature sensor is 26° C. and 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 component is controlled to be turned off.

[0075] Exemplarily, the first temperature value detected by the temperature sensor is 25.5° C. and maintained 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 component to be turned off.

[0076] For example, the first temperature value detected by the temperature sensor is 27° C., and is maintained for 10 seconds before dropping 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 component to be turned off.

[0077] According to an embodiment of the present 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 the embodiments of the present disclosure, the first reference temperature or the second reference temperature may be pre-set based on experience, or may be calculated in real time based on the temperature of the entire vehicle. Specifically, a fresh air temperature sensor is provided at the fresh air outlet of each air conditioner, and the air conditioning controller collects the value of the above fresh air temperature sensor and sends it to the train network (TCMS). After TCMS takes the average value of the fresh air temperature of the entire train, it is sent to the air conditioning controller, which then converts it according to the UIC533 curve as the first reference temperature or the second reference temperature. The first reference temperature or the 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 temperature of the warm air component, including: using the temperature control switch to detect the temperature of the outlet of the warm air component to obtain a second temperature value.

[0080] According to an embodiment of the present disclosure, when the target area is detected to be in a closed state, the temperature control switch is used to detect the temperature of the air outlet of the warm air component. The target area being a closed area may 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 air outlet reference temperature threshold, the temperature control switch is closed and generates a closing signal to feed back to the air conditioning controller, wherein the air outlet reference temperature threshold is greater than the first reference temperature.

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

[0083] According to an embodiment of the present disclosure, the temperature control switch detects the outlet temperature of the warm air component to obtain a second temperature value. It has an element capable of sensing temperature changes, such as a bimetallic strip or a thermistor. These elements will change their physical properties (such as shape, resistance, etc.) as the temperature changes. The detected second temperature value is compared with a preset reference temperature threshold of the air outlet. When the second temperature value reaches the reference temperature threshold of the air outlet, the mechanical or electronic structure inside the temperature control switch closes the switch and generates a closing signal. When the second temperature value does not reach the reference temperature threshold of the air outlet, the switch remains in an open state and cannot feedback a closing signal. For example, for a bimetallic temperature control switch, when the temperature rises to the threshold, the bimetallic strip is deformed by heat, causing the contacts to close; for a thermistor temperature control switch, a change in the resistance of the thermistor will cause a change in the voltage or current in the circuit. When the temperature reaches the threshold, the circuit state changes, causing the switch to close.

[0084] According to the embodiment of the present disclosure, the temperature control switch plays a role of signal feedback. It feeds back information on whether the temperature of the air outlet reaches the set threshold to the air conditioning controller in the form of a closed signal or no closed signal. The air conditioning controller can understand the real-time status of the air outlet temperature of the warm air component based on this signal, thereby confirming whether there is a device failure.

[0085] Exemplarily, when the temperature control switch detects the temperature of the air outlet of the warm air component, the second temperature value detected is 28°C. At this time, because 28°C is less than 30°C (the reference temperature threshold of the air outlet is not reached), the temperature control switch remains in an open state and cannot feed back a closing signal to the air conditioning controller. The air conditioning controller may receive relevant information indicating that the switch is disconnected, and determine that the air outlet temperature has not yet reached the corresponding threshold requirement; or it may be that if no closing signal is received within a predetermined time, it is determined that the air outlet temperature has not yet reached the corresponding threshold requirement. After a period of heating, the temperature control switch detects again, and the second temperature value obtained this time is 30°C, which just reaches the set reference temperature threshold of the air outlet. At this time, the temperature control switch will be closed, and a closing signal will be generated and fed back to the air conditioning controller. After receiving this closing signal, the air conditioning controller confirms that the air outlet temperature has reached the requirement.

[0086] According to an embodiment of the present disclosure, the situations where the closing signal fed back by the temperature control switch cannot be received include: the heater component fails and the air outlet temperature does not reach the air outlet temperature threshold; or the temperature control switch fails and the closing signal cannot be fed back.

[0087] According to an embodiment of the present disclosure, the cause of the fault may be: the heating wire of the electric heater in the warm air component is partially broken or severely aged. When the heating wire is broken, the current cannot pass through the entire heating wire normally, resulting in a significant drop in heating power. The heating capacity that could have allowed the air outlet temperature to reach the air outlet temperature threshold within a normal time is lost, and the temperature cannot be raised to a level that allows the temperature control switch to close. Even if the warm air component is running all the time, the air outlet temperature may always be at a low level, thereby failing to trigger the temperature control switch to close.

[0088] According to the embodiments of the present disclosure, the cause of the failure may be: a fan failure in the heating assembly. If the air duct of the heating assembly is blocked by foreign matter, the hot air cannot smoothly pass through the air duct to reach the air outlet. Alternatively, when the fan in the heating assembly does not work or the speed is too low, the hot air cannot be blown out in time. In this way, the temperature of the air outlet will remain low, and the air outlet temperature cannot reach the threshold.

[0089] According to the embodiments of the present disclosure, the cause of the failure may be: a failure of the temperature control switch, such as a failure of the internal comparison circuit, a failure of the mechanical component, or a failure of the signal transmission line. In this case, even if the air outlet temperature has reached or exceeded the air outlet temperature threshold, the closing signal cannot be fed back.

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

[0091] like Figure 4As shown, the fault location method includes operations S410 and S420 in addition to the operations S210 to S240 described above.

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

[0093] According to an embodiment of the present disclosure, the abnormality reporting information is various abnormal conditions that occur in components related to the heater assembly, temperature sensor, temperature controller, etc. For example, component abnormality or temperature abnormality, etc.

[0094] According to the embodiment of the present disclosure, the temperature sensor is always detecting the temperature of the target area, and will continuously record multiple temperature values ​​at certain time intervals within a predetermined historical time period to obtain multiple historical temperature values. The monitoring center will obtain these historical temperature values.

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

[0096] According to the embodiments of the present disclosure, after acquiring these data, the monitoring center will accurately determine the faulty equipment by analyzing the change trends, numerical values, etc. of multiple historical temperature values, combined with the specific abnormal content prompted by the abnormal reporting information.

[0097] According to an embodiment of the present disclosure, fault location is performed based on multiple historical temperature values ​​and abnormal reporting information, including: if at least one historical temperature value reaches a first reference temperature within a predetermined historical time period, determining that the temperature control switch is faulty.

[0098] For example, the abnormal reporting information indicates that the temperature control switch may be faulty. The monitoring center checks the historical temperature values ​​and finds that in the past half hour (predetermined historical time period), the temperature value has continued to rise and has exceeded the normal temperature control range (for example, the maximum temperature is set to 40°C, but the temperature value reaches 45°C and is still rising). This further verifies that the heater component is operating normally and can raise the temperature to the first reference temperature, but the closing signal cannot be fed back due to a fault in the temperature control switch.

[0099] If the plurality of historical temperature values ​​do not reach the first reference temperature within a predetermined historical time period, it is determined that the heater component is faulty.

[0100] For example, the monitoring center analyzed the historical temperature values ​​and found that the temperature had hardly risen in the past 20 minutes (for example, it was always maintained at around 18°C, while it should normally continue to rise to around 25°C). Based on this and the working principles of related equipment, it can be inferred that there may be a fault in the heating element in the heater assembly, resulting in failure to heat up normally, and then a preliminary judgment on the fault location can be made, providing an accurate basis for subsequent maintenance and other work.

[0101] According to an embodiment of the present disclosure, it is determined whether fault detection is required according to the first temperature value detected by the temperature sensor. Among them, a fault detection temperature threshold is set, for example, it can be 14°C~20°C. When the first temperature value is less than or equal to the fault detection temperature threshold, no fault detection is required; when the first temperature value is greater than the fault detection temperature threshold, it is determined that fault detection is required. 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, the heating capacity of the warm air component is limited due to the low ambient temperature. Although the heater is working, the heat enhancement effect is not ideal. In this case, the heat generated is not enough to make the temperature of the air outlet reach the second reference temperature. Because the temperature condition required for the temperature control switch to close is not reached, the contacts of the temperature control switch will not close. This is a normal system performance, not because of a fault in the temperature control part of the table fan heater. That is, fault detection performed when the first temperature value is less than or equal to the fault detection temperature threshold is likely to lead to inaccurate fault location results. When the first temperature value of the target area is greater than the fault detection temperature threshold, the ambient temperature condition is relatively good. At this time, if the warm air component works normally, the heat it generates can ensure that the air outlet temperature reaches the second reference temperature. However, the second reference temperature is not actually reached within the predetermined time condition. Only by performing fault diagnosis at this time can non-equipment factors be excluded to ensure the accuracy of the fault location result.

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

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

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

[0105] In operation S520, when fault detection is performed, a door closing signal is detected, and when the door closing signal is received, a second temperature value obtained by the temperature control switch for detecting the air outlet temperature is obtained. When the second temperature value is greater than the fault detection temperature threshold and the door closing signal is detected, a fault determination is performed.

[0106] In operation S530, when a closing signal is received from the temperature control switch, it is determined that the heater assembly is operating normally; if no closing signal is received within a predetermined time, the fault is recorded once, and when the cumulative number of faults reaches a preset number (for example, 5 times), the abnormal information is reported to the monitoring center.

[0107] Based on the above fault location method, the present disclosure also provides a fault location device. Figure 6 The device is described in detail.

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

[0109] like Figure 6 As shown, the fault location device 600 of this 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 used to detect the temperature of the target area of ​​the train using a temperature sensor to obtain a first temperature value. In one embodiment, the first temperature detection module 610 can be used to perform the operation S210 described above, which will not be repeated here.

[0111] The first control module 620 is used to control the heater assembly to turn on according to the first temperature value and the first predetermined judgment condition, so as to heat the target area by using the heater assembly to make air flow. In one embodiment, the first control module 620 can be used to perform the operation S220 described above, which will not be repeated here.

[0112] The second control module 630 is used to maintain the on state of the warm air component when the warm air component is in the on state and cannot receive the closing signal fed back by the temperature control switch, wherein the temperature control switch feeds back the closing signal according to the outlet air temperature of the warm air component. In one embodiment, the second control module 630 can be used to perform the operation S230 described above, which will not be described in detail here.

[0113] The reporting module 640 is used to send abnormal reporting information related to the heating component or the temperature control switch to the monitoring center, so that the monitoring center can locate the fault according to the abnormal reporting information. In one embodiment, the reporting module 640 can be used to perform the operation S240 described above, which will not be repeated here.

[0114] According to the embodiment of the present disclosure, the heater is turned on by controlling the temperature sensor, and the fault is determined by the temperature control switch. Thus, the situation that the entire warm air component stops operating without reason due to a local fault (such as a temperature control switch fault) can be effectively avoided. The method of the present disclosure is not to stop the operation of the equipment. As long as the electric heater does not fail, it can continue to work, continue to provide heat to the target area, maintain the temperature as stable as possible, avoid large fluctuations in temperature, and ensure that there is always a suitable temperature environment in the target area. The warm air component will not stop working until the shutdown condition originally set by the warm air component is met. The automatic shutdown of the warm air component 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 conditioning controller. When the temperature rises to the set reasonable upper limit value, the air conditioning controller receives this signal and triggers the operation of shutting down the warm air component, so that the electric heater stops heating, the fan stops supplying air, etc., so that the entire warm air component stops working. In this way, there will be no situation where the temperature of the target area is too high due to continuous heating without reasonable control, which avoids possible safety hazards (such as fire and burns caused by overheating), and also prevents unnecessary waste of resources. After all, continuous heating will consume a lot of electricity and other energy. By accurately controlling the shutdown timing through temperature sensors, it is possible to save energy to the greatest extent while meeting heating needs, improve energy utilization efficiency, and achieve reasonable, efficient and safe control of the temperature in the target area.

[0115] According to an embodiment of the present disclosure, the first predetermined judgment condition includes a first reference temperature, and the temperature control switch feeds back a closing signal according to the outlet temperature of the warm air component, including:

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

[0117] According to an embodiment of the present disclosure, the situations where the closing signal fed back by the temperature control switch cannot be received include: the heater component fails and the air outlet temperature does not reach the air outlet temperature threshold; or the temperature control switch fails and the closing signal cannot be fed back.

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

[0119] The acquisition module is used to obtain multiple historical temperature values ​​obtained by using temperature sensors to detect the temperature of the target area within a predetermined historical time period while the monitoring center receives the abnormal reporting information; the fault location module is used to locate the fault based on the multiple historical temperature values ​​and the abnormal reporting information.

[0120] According to an embodiment of the present disclosure, the fault location module includes: a first determination submodule and a second determination submodule.

[0121] A first determination submodule, configured to determine that the temperature control switch is faulty if at least one historical temperature value reaches a first reference temperature within a predetermined historical time period;

[0122] The second determination submodule is used to determine that the heater component is faulty if a plurality of historical temperature values ​​do not reach a first reference temperature within a predetermined historical time period.

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

[0124] The third control module is used to control the heating component to be turned off according to the first temperature value and the second predetermined judgment condition to stop heating the target area.

[0125] According to an embodiment of the present disclosure, the first predetermined judgment 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; the second predetermined judgment 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.

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

[0127] According to an embodiment of the present disclosure, any multiple modules of the first temperature detection module 610, the first control module 620, the second control module 630 and the reporting module 640 can be combined into one module for implementation, or any one of the modules can be split into multiple modules. Alternatively, at least part of the functions of one or more of these modules can be combined with at least part of the functions of other modules and implemented in one module. According to an embodiment of the present disclosure, at least one of the first temperature detection 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 a chip, a system on a substrate, a system on a package, an application specific integrated circuit (ASIC), or can be implemented by hardware or firmware such as any other reasonable way of integrating or packaging the circuit, or implemented in any one of the three implementation methods of software, hardware and firmware or in a suitable combination of any of them. Alternatively, at least one of the first temperature detection module 610, the first control module 620, the second control module 630 and the reporting module 640 may be at least partially implemented as a computer program module, and when the computer program module is executed, a corresponding function may be executed.

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

[0129] like Figure 7 As shown, the electronic device 700 according to an embodiment of the present disclosure includes a processor 701, which 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 part 708 to a random access memory (RAM) 703. The processor 701 may 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 (for example, an application-specific integrated circuit (ASIC)), etc. The processor 701 may also include an onboard memory for caching purposes. The processor 701 may include a single processing unit or multiple processing units for performing different actions of the method flow according to an embodiment of the present disclosure.

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

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

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

[0133] According to an embodiment of the present disclosure, the computer-readable storage medium may be a non-volatile computer-readable storage medium, for example, it may include but is not limited to: a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, an apparatus or a device. For example, according to an embodiment of the present disclosure, the computer-readable storage medium may include the ROM 702 and / or RAM 703 described above and / or one or more memories other than ROM 702 and RAM 703.

[0134] The embodiment of the present disclosure also includes a computer program product, which includes a computer program, and the computer program contains program code for executing the method shown in the flowchart. When the computer program product is run in a computer system, the program code is used to enable the computer system to implement the item recommendation method provided by the embodiment of the present disclosure.

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

[0136] In one embodiment, the computer program may rely on tangible storage media such as optical storage devices, magnetic storage devices, etc. In another embodiment, the computer program may also be transmitted and distributed in the form of signals on a network medium, and downloaded and installed through the communication part 709, and / or installed from the removable medium 711. The program code contained in the computer program may be transmitted using any appropriate network medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[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 removable medium 711. When the computer program is executed by the processor 701, the above functions defined in the system of the embodiment of the present disclosure are performed. According to the embodiment of the present disclosure, the system, device, means, module, unit, etc. described above can be implemented by a computer program module.

[0138] According to an embodiment of the present disclosure, the program code for executing the computer program provided by the embodiment of the present disclosure can be written in any combination of one or more programming languages. Specifically, these computing programs can be implemented using high-level process and / or object-oriented programming languages, and / or assembly / machine languages. Programming languages ​​include, but are not limited to, Java, C++, python, "C" language or similar programming languages. The program code can be executed entirely on the user computing device, partially on the user device, partially on the remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computing device (for example, using an Internet service provider to connect through the Internet).

[0139] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0140] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations and / or combinations are not explicitly described in the present disclosure. In particular, the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways without departing from the spirit and teachings of the present disclosure. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0141] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present disclosure is defined by the attached claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A fault location method, comprising: Using a temperature sensor to detect the temperature of a target area of ​​the train to obtain a first temperature value; According to the first temperature value and the first predetermined judgment condition, the heating component is controlled to be turned on, so as to heat the target area by using the heating component to make the air flow; When the heater component is in the on state and cannot receive a closing signal fed back by a temperature control switch, the heater component is maintained in the on state, wherein the temperature control switch feeds back the closing signal according to the outlet air temperature of the heater component; Abnormal reporting information related to the heating component or the temperature control switch is sent to a monitoring center, so that the monitoring center can locate the fault according to the abnormal reporting information.

2. The method according to claim 1, wherein: The first predetermined judgment condition includes a first reference temperature, The temperature control switch feeds back the closing signal according to the outlet air temperature of the warm air component, including: Using the temperature control switch to detect the temperature of the air outlet of the warm air component to obtain a second temperature value; If the second temperature value reaches the air outlet reference temperature threshold, the temperature control switch is closed, and the closing signal is generated to be fed back to the air conditioning controller, wherein the air outlet reference temperature threshold is greater than the first reference temperature; If the second temperature value does not reach the air outlet reference temperature threshold, the temperature control switch is disconnected and the closing signal cannot be fed back to the air conditioning controller.

3. The method according to claim 1 or 2, wherein: The situations where the closed signal fed back by the temperature control switch cannot be received include: The heating component fails, and the air outlet temperature does not reach the air outlet temperature threshold; or The temperature control switch fails and cannot feed back the closing signal.

4. The method according to claim 1, further comprising: When the monitoring center receives the abnormality reporting information, it obtains a plurality of historical temperature values ​​obtained by performing temperature detection on the target area using the temperature sensor within a predetermined historical time period; The fault location is performed according to the multiple historical temperature values ​​and the abnormality reporting information.

5. The method according to claim 4, wherein: Performing the fault location according to the multiple historical temperature values ​​and the abnormality reporting information includes: 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; If the plurality of historical temperature values ​​do not reach the first reference temperature within the predetermined historical time period, it is determined that the heater component is faulty.

6. The method according to claim 1, further comprising: According to the first temperature value and the second predetermined judgment condition, the warm air component is controlled to be turned off to stop heating the target area.

7. The method according to claim 6, wherein: The first predetermined judgment condition is: the temperature difference between the first temperature value and the first reference temperature is less than or equal to a first temperature threshold, and the duration is greater than or equal to a first time threshold; The second predetermined judgment condition is that the temperature difference between the first temperature value and the second reference temperature is greater than or equal to a second temperature threshold, and the duration is greater than or equal to a second time threshold.

8. According to the method according to any one of claims 1 to 7, the target area is an area in the train that exchanges heat with the external environment.

9. A fault location device, comprising: A first temperature detection module, used to detect the temperature of a target area of ​​the train using a temperature sensor to obtain a first temperature value; a first control module, configured to control the heater component to turn on according to the first temperature value and a first predetermined judgment condition, so as to heat the target area by using the heater component to make air flow; a second control module, for maintaining the on state of the heater component when the heater component is on and cannot receive a closing signal fed back by a temperature control switch, wherein the temperature control switch feeds back the closing signal according to the outlet air temperature of the heater component, and The reporting module is used to send abnormal reporting information related to the heating component or the temperature control switch to the monitoring center, so that the monitoring center can locate the fault according to the abnormal reporting information.

10. A train comprising: The fault locating device as claimed in claim 9.

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