Rail vehicle control system, display screen fogging treatment method and rail vehicle

Abstract

The present disclosure provides a rail vehicle control system, a display screen fogging processing method and a rail vehicle, which can be applied to the technical field of rail vehicle control. The rail vehicle control system comprises a display screen, which is used for human-computer interaction with a control personnel and transmits a control operation of the control personnel to a controller; a first detector, which is arranged on a first side of the display screen where the control personnel interacts, is used for detecting a first environmental parameter of the first side and transmitting the first environmental parameter to the controller; a second detector, which is arranged on a second side of the display screen away from the control personnel, is used for detecting a second environmental parameter of the second side and transmitting the second environmental parameter to the controller; the controller is used for converting the control operation transmitted by the display screen into a control instruction and controlling the rail vehicle based on the control instruction; and in the case that the first environmental parameter and the second environmental parameter meet predetermined conditions, generating display screen fogging early warning information.

Description

Technical Field

[0001] This disclosure relates to the field of rail vehicle control technology, specifically to a rail vehicle control system, a method for dealing with fogging of a display screen, and a rail vehicle. Background Technology

[0002] In the field of rail vehicle control technology, operators in the driver's cab can view vehicle status information, fault information, and other information through the Human Machine Interface (HMI) display screen provided by the rail vehicle control system. They can also send train control commands through the HMI display screen. The quality of the HMI display screen is closely related to the safety of driving the vehicle, and it also facilitates maintenance personnel in monitoring the status of the rail vehicle.

[0003] During actual vehicle commissioning, maintenance personnel discovered fogging on the HMI displays of the rail vehicles, making it difficult for maintenance personnel and drivers to obtain vehicle status and fault information from the displays. Furthermore, fogging of the HMI displays during rail vehicle operation could even compromise vehicle safety. Therefore, there is an urgent need for a solution that can provide early warning of HMI display fogging to ensure the safety of rail vehicles. Summary of the Invention

[0004] In view of the above problems, this disclosure provides a rail vehicle control system, a method for dealing with fogging of a display screen, and a rail vehicle.

[0005] According to a first aspect of this disclosure, a rail vehicle control system is provided, comprising:

[0006] The display screen is used for human-machine interaction with the controller and to transmit the controller's control operations to the controller.

[0007] The first detector is located on the first side of the display screen where the controller interacts with the user. It is used to detect the first environmental parameter on the first side and transmit the first environmental parameter to the controller.

[0008] The second detector is located on the second side away from the display screen and the interaction between the controller and the operator. It is used to detect the second environmental parameters on the second side and transmit the second environmental parameters to the controller.

[0009] The controller is used to convert the control operations transmitted by the display screen into control commands and control the rail vehicle based on the control commands; and to generate a fogging warning message for the display screen when the first environmental parameter and the second environmental parameter meet predetermined conditions.

[0010] According to an embodiment of this disclosure, a first detector is detachably mounted on a first side, and a second detector is detachably mounted on a second side; the first detector includes a temperature and / or humidity sensor, and the second detector includes a temperature and / or humidity sensor.

[0011] The first detector sends the first environmental parameters to the controller via a wireless connection inside the rail vehicle; the first environmental parameters include the first temperature and humidity parameters and / or the first humidity parameters.

[0012] The second detector sends second environmental parameters to the controller via a wireless connection inside the rail vehicle; the second environmental parameters include second temperature and humidity parameters and / or second humidity parameters.

[0013] According to embodiments of this disclosure, it further includes:

[0014] A buzzer is used to receive warning commands from the controller and generate a buzzing alarm sound. The warning commands are generated based on fogging warning information on the display screen.

[0015] According to embodiments of this disclosure, the controller controls the air conditioning system of the rail vehicle via a wireless connection inside the rail vehicle; the controller is further configured to:

[0016] Based on the fogging warning information on the display screen, a defogging command is generated. This command controls the air conditioning system to adjust its control parameters to eliminate or prevent fogging on the front of the display screen. The defogging command is then sent to the air conditioning system.

[0017] The second aspect of this disclosure provides a method for handling display screen fogging, comprising: acquiring a first environmental parameter from a first detector and a second environmental parameter from a second detector, wherein the first environmental parameter represents the environmental parameter of a first side, the second environmental parameter represents the environmental parameter of a second side, the first side is the side of the display screen of the rail vehicle control system that interacts with the controller, and the second side is the side away from the display screen that interacts with the controller.

[0018] When the first environmental parameter and the second environmental parameter meet predetermined conditions, a fogging warning message for the display screen is generated, wherein the predetermined conditions characterize the conditions under which fog forms on the front of the display screen.

[0019] According to embodiments of this disclosure, obtaining a first environmental parameter from a first detector and a second environmental parameter from a second detector includes:

[0020] The first environmental parameters are obtained from the first detector and the second environmental parameters are obtained from the second detector via a wireless connection inside the rail vehicle.

[0021] According to embodiments of this disclosure, the method further includes:

[0022] Based on the fogging warning information displayed on the screen, generate a warning command of at least one warning level; and

[0023] The warning command is sent to the buzzer of the rail vehicle control system so that the buzzer will produce a beeping alarm sound.

[0024] According to embodiments of this disclosure, the first environmental parameter includes a first temperature parameter and a first humidity parameter, and the second environmental parameter includes a second temperature parameter and a second humidity parameter; when the first environmental parameter and the second environmental parameter meet predetermined conditions, generating a display screen fogging warning message includes:

[0025] If at least one of the first temperature parameter, the first humidity parameter, the second environmental parameter, and the second humidity parameter exceeds its corresponding normal parameter range, a display screen fogging warning message is generated based on the parameter exceeding the normal parameter range, wherein the normal parameter range is determined when there is no fogging on the front of the display screen; or,

[0026] If the difference between the first temperature parameter and the second temperature parameter exceeds the normal temperature difference range, and / or the difference between the first humidity parameter and the second humidity parameter exceeds the normal humidity difference range, a fogging warning message for the display screen is generated based on the parameter that exceeds the normal difference range. The normal temperature difference range and the normal humidity difference range are determined when there is no fogging on the front of the display screen.

[0027] According to embodiments of this disclosure, the method further includes:

[0028] Based on the fogging warning information on the display screen, a control command is generated, wherein the control command includes at least one of the following: temperature control command, wind speed control command, and wind direction control command;

[0029] Control commands are sent to the air conditioning system of the rail vehicle via a wireless connection inside the vehicle.

[0030] A third aspect of this disclosure provides a rail vehicle including the aforementioned rail vehicle control system, wherein the rail vehicle control system is located in the control room of the rail vehicle and is used to control the operation of the rail vehicle through human-machine interaction with a control operator.

[0031] An air conditioning system is used to control the air conditioning equipment in the control room and other carriages of the rail vehicle; and to adjust the control parameters of the air conditioning system through interactive operation with the rail vehicle control system.

[0032] In the embodiments of this disclosure, environmental parameters are acquired by adding two detectors on the front and rear sides of the display screen, and these parameters are transmitted to the controller. The existing functions of the rail vehicle controller are used for display screen fogging warnings, eliminating the need for third-party detection software. Since this embodiment does not require third-party detection software for warnings, the rail vehicle does not need to grant permissions to third-party software, ensuring the safety of the vehicle's internal environment while providing display screen fogging warnings. Furthermore, this embodiment only requires two additional detectors on the front and rear sides of the display screen, avoiding extensive modifications to the rail vehicle's hardware, reducing modification costs, and ensuring that the low-modification-cost rail vehicle control system is applicable to multiple regions and various climates. Attached Figure Description

[0033] The above and other objects, features and advantages of this disclosure will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:

[0034] Figure 1 A schematic diagram of a control console for a rail vehicle control system according to an embodiment of the present disclosure is shown.

[0035] Figure 2A This schematic diagram illustrates the positional relationship between the display screen, the first detector, and the second detector according to an embodiment of the present disclosure.

[0036] Figure 2B This schematic diagram illustrates the positional relationship of the display screen, the first detector, the second detector, and the buzzer according to an embodiment of the present disclosure.

[0037] Figure 3 A flowchart illustrating a display screen fogging treatment method according to a specific embodiment of the present disclosure is shown schematically.

[0038] Figure 4 A flowchart illustrating a display screen fogging warning method according to an embodiment of the present disclosure is shown schematically;

[0039] Figure 5 A flowchart illustrating a display screen defogging method according to an embodiment of the present disclosure is shown schematically.

[0040] Figure 6 The diagram illustrates an application scenario of a display screen fogging warning method according to an embodiment of the present disclosure. Detailed Implementation

[0041] The embodiments of the present disclosure will now 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 disclosure. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of the present disclosure for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the present disclosure.

[0042] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0043] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0044] When using expressions such as "at least one of A, B and C", they should generally be interpreted in accordance with the meaning that is commonly understood by those skilled in the art (e.g., "a system having at least one of A, B and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B and C, etc.).

[0045] In practical applications, multiple regions and cities typically use a few relatively fixed rail vehicle models, such as subways and high-speed railways, which use a fixed number of vehicles manufactured by one or more companies. However, due to varying geographical climates in different regions, the displays on rail vehicles in some areas may be prone to fogging, such as in hot and humid regions, while the displays on rail vehicles in other areas may not tolerate fogging at all. This necessitates that rail vehicles adapt to different local climates and withstand varying air temperatures and humidity levels. Therefore, considering the cost of rail vehicle retrofitting, how to provide timely warnings and handle fogging on the HMI displays of rail vehicles is an urgent problem to be solved.

[0046] Therefore, embodiments of this disclosure provide a rail vehicle control system, including: a display screen for human-machine interaction with a controller and for transmitting control operations from the controller to a controller; a first detector disposed on the first side of the display screen where the controller interacts, for detecting a first environmental parameter on the first side and transmitting the first environmental parameter to the controller; a second detector disposed on the second side away from the display screen where the controller interacts, for detecting a second environmental parameter on the second side and transmitting the second environmental parameter to the controller; a controller for converting the control operations transmitted from the display screen into control commands and controlling the rail vehicle based on the control commands; and generating a fogging warning message for the display screen when the first environmental parameter and the second environmental parameter meet predetermined conditions.

[0047] Figure 1 A schematic diagram of a console for a rail vehicle control system according to an embodiment of the present disclosure is shown.

[0048] like Figure 1 As shown, a control console 100 is installed in the control room of the rail vehicle. The control console 100 may have multiple control buttons 101. The operator in the control room, i.e. the driver, can operate the multiple control buttons 101 to control the normal operation of the rail vehicle.

[0049] The control console 100 is also equipped with a display screen 102, which can display the status and fault information of the rail vehicle to the controller in real time. During the operation of the rail vehicle, the controller can also generate control commands through the control operation of the display screen 102 and control the rail vehicle through the control commands.

[0050] For example, operators can view the load status of the rail vehicles, the connection status between vehicles, and so on through the display screen 102.

[0051] In the embodiments of this disclosure, the control console 100 of the rail vehicle can be connected to the controller via a wireless connection or a vehicle bus connection, so as to transmit the control operations transmitted by the display screen to the controller, which then generates control commands and controls the rail vehicle based on the control commands.

[0052] Extensive practical experience has shown that when a power-off display screen is left in a high-temperature, high-humidity environment for too long, a large amount of moisture accumulates inside. The longer the time, the more moisture accumulates, making it more prone to fogging. The more severe the fogging, the longer it takes for the fog to clear. Therefore, when fogging is discovered during vehicle testing, a significant amount of time is spent waiting for the display screen to clear the fog in order to ensure the normal operation of the rail vehicle. Furthermore, if fogging is not detected during vehicle testing but is discovered during vehicle operation, it not only increases the safety risks to the rail vehicle but also leads to additional time delays and costs, impacting the passenger experience.

[0053] Therefore, the embodiments of this disclosure have made simple modifications to the hardware and software of the rail vehicle control system, enabling the modified rail vehicle control system to provide early warnings and handle whether the display screen is fogged.

[0054] This disclosure provides a rail vehicle control system, comprising: a display screen for human-machine interaction with a controller and for transmitting control operations from the controller to a controller; a first detector disposed on the first side of the display screen where the controller interacts, for detecting a first environmental parameter on the first side and transmitting the first environmental parameter to the controller; a second detector disposed on the second side away from the display screen where the controller interacts, for detecting a second environmental parameter on the second side and transmitting the second environmental parameter to the controller; a controller for converting the control operations transmitted from the display screen into control commands and controlling the rail vehicle based on the control commands; and generating a fogging warning message for the display screen when the first environmental parameter and the second environmental parameter meet predetermined conditions.

[0055] According to embodiments of this disclosure, the modification to the hardware device mainly involves installing a detector on the front and back sides of the display screen. The front side of the display screen is the first side where the display screen interacts with the operator, and the rear side of the display screen is the second side away from the display screen and interacting with the operator.

[0056] According to embodiments of this disclosure, the source, model, and environmental detection type of the first detector and the second detector can be the same or different, as long as they can detect environmental parameters on the front and back sides of the display screen. That is, the first detector and the second detector can be flexibly selected to reduce the cost of modifying the hardware.

[0057] According to embodiments of this disclosure, the first detector and the second detector can transmit the detected environmental parameters, such as the first environmental parameter and the second environmental parameter, to the controller, which then determines whether to issue a display screen fogging warning based on the first environmental parameter and the second environmental parameter.

[0058] The controller can be the central control unit (VCU) inside the rail vehicle. As the core of the entire control system of the rail vehicle, the controller can monitor the actions of the controllers of various components within the rail vehicle in real time, and is responsible for the normal operation of the rail vehicle, braking energy feedback, energy management of the whole vehicle drive system and power battery, network management, fault diagnosis and handling, vehicle status monitoring, etc.

[0059] According to embodiments of this disclosure, the predetermined condition is a condition where the display screen fogs up or is about to fog up. For example, the predetermined condition may be a temperature threshold or temperature range where the temperature meets the fogging condition, or a humidity threshold or humidity range where the humidity meets the fogging condition; or, it may be a threshold or range where both temperature and humidity meet the fogging condition simultaneously.

[0060] In the embodiments of this disclosure, two additional detectors on the front and rear sides of the display screen are used to acquire environmental parameters before and after the display screen, and these parameters are transmitted to the controller. The existing functions of the rail vehicle controller are then used for display screen fogging warnings, eliminating the need for third-party detection software. Since the embodiments of this disclosure do not require third-party detection software for warnings, the rail vehicle does not need to grant permissions to third-party software, thus ensuring the safety of the internal environment of the control vehicle while providing display screen fogging warnings.

[0061] Furthermore, the embodiments of this disclosure only require two additional detectors on the front and back sides of the display screen, eliminating the need for extensive modifications to the hardware of the rail vehicle. This reduces the modification cost of the rail vehicle and ensures that the low-modification-cost rail vehicle control system is applicable to multiple regions and various climate environments.

[0062] According to embodiments of this disclosure, a first detector is detachably mounted on a first side, and a second detector is detachably mounted on a second side; the first detector includes a temperature and / or humidity sensor, and the second detector includes a temperature and / or humidity sensor. The first detector transmits a first environmental parameter to the controller via a wireless connection inside the rail vehicle; the first environmental parameter includes a first temperature and humidity parameter and / or a first humidity parameter; the second detector transmits a second environmental parameter to the controller via a wireless connection inside the rail vehicle; the second environmental parameter includes a second temperature and humidity parameter and / or a second humidity parameter.

[0063] According to embodiments of this disclosure, the first detector can be a sensor for detecting the temperature or humidity, or temperature and humidity, on the front side of the display screen. For example, the first detector can be a temperature sensor, a humidity sensor, or a temperature and humidity sensor. The second detector can be a sensor for detecting the temperature or humidity, or temperature and humidity, on the rear side of the display screen. For example, the second detector can be a temperature sensor, a humidity sensor, or a temperature and humidity sensor.

[0064] It should be noted that the first environmental parameter and the second environmental parameter detected by the first detector and the second detector are simultaneously temperature parameters, simultaneously humidity parameters, or simultaneously temperature parameters and humidity parameters, in order to detect the temperature difference and / or humidity difference before and after the display screen.

[0065] According to embodiments of this disclosure, the first detector and the second detector may also be a sensor group comprising multiple sensors to detect environmental parameters at multiple locations on the front and back sides of the display screen. In this case, the first environmental parameter or the second environmental parameter is the average value of the environmental parameters at multiple locations. For example, the first detector may be a 2*2 temperature and humidity sensor group, detachably disposed at the four corners on the front side of the display screen. The first environmental parameter includes the average temperature parameter and the average humidity parameter of the four temperature and humidity sensors.

[0066] According to embodiments of this disclosure, the first detector and the second detector can be detachably installed on the first and second sides of the display screen by various means such as magnetic attraction, sleeve connection, and screw fixing.

[0067] According to embodiments of this disclosure, the wireless connectivity methods within the rail vehicle include Ethernet or a Multifunction Vehicle Bus (MVB) network. An MVB network is a serial data communication bus primarily used for interconnecting devices with interoperability and interchangeability requirements, connecting standard devices located in the same or different carriages to the rail vehicle's controller.

[0068] In embodiments of this disclosure, the first detector and the second detector include a temperature sensor, a humidity sensor, or a temperature and humidity sensor that can transmit signals via an MVB network or Ethernet.

[0069] Figure 2A The schematic diagram illustrates the positional relationship between the display screen, the first detector, and the second detector according to an embodiment of the present disclosure.

[0070] like Figure 2A As shown, a first detector 201 is detachably mounted on the front side of the display screen 202, and a second detector 203 is detachably mounted on the rear side of the display screen 202. Operators can operate the rail vehicle by contacting the touch screen on the front side of the display screen 202.

[0071] like Figure 2A As shown, the first detector 201 and the second detector 203 can be disposed on the upper side of the display screen 202 to avoid obstructing the display page on the front side of the display screen. According to embodiments of this disclosure, the first detector 201 and the second detector 203 can also be disposed on the lower side, center, or other positions of the display screen 202 to detect the temperature difference or humidity difference between the front and back of the display screen.

[0072] The embodiments disclosed herein involve detachably adding a first detector and a second detector, which simplifies the modification of the hardware and makes it highly operable. Furthermore, it makes full use of the Ethernet or MVB network on the rail vehicle without adding other communication networks and does not affect the communication of other equipment on the train, thereby increasing the stability and safety of the rail vehicle control system.

[0073] According to an embodiment of this disclosure, the rail vehicle control system further includes: a buzzer for receiving a warning command from the controller and generating a buzzer alarm sound, wherein the warning command is generated based on fogging warning information on the display screen.

[0074] According to embodiments of this disclosure, the buzzer can be an existing buzzer in the rail vehicle control system, allowing the buzzer to function in addition to its original function, under the control of the controller to generate a buzzing alarm sound based on a warning command. Alternatively, the buzzer can be a new addition, similar to the first and second detectors, and can be detachably installed in the rail vehicle control system.

[0075] The buzzer can communicate with the controller wirelessly and generate a buzzing alarm sound after receiving a warning command from the controller.

[0076] According to embodiments of this disclosure, the rail vehicle control system may further include: a warning light for receiving a warning command from the controller and generating an alarm light, wherein the warning command is generated based on fogging warning information on the display screen. In one specific embodiment, the controller may simultaneously send a warning command to both the warning light and the buzzer to simultaneously control both the warning light and the buzzer to issue an alarm; in another specific embodiment, the controller may send different warning commands to the warning light and the buzzer respectively to control both the warning light and the buzzer to issue an alarm.

[0077] Figure 2B The schematic diagram illustrates the positional relationship of the display screen, the first detector, the second detector, and the buzzer according to an embodiment of the present disclosure.

[0078] like Figure 2B As shown, display screen 202, first detector 201, second detector 203 and Figure 2A Similar or identical devices will not be described further here. The buzzer 204 can be detachably installed on the lower rear side of the display screen 202 to emit a buzzing alarm sound when the front of the display screen fogs up or is about to fog up.

[0079] The embodiments disclosed herein can achieve real-time early warning of display screen fogging by using the existing buzzer of the rail vehicle control system or by adding a simple buzzer. The modification cost to rail vehicles is low, the application prospects are broad, and the acceptance by rail vehicle operators is high.

[0080] According to embodiments of this disclosure, a rail vehicle typically includes a locomotive with a control room and multiple carriages. Air conditioning equipment is installed in the locomotive and the carriages, and this equipment is controlled by an air conditioning system.

[0081] According to embodiments of this disclosure, the controller communicates with the air conditioning system via a wireless connection to control the air conditioning system of the rail vehicle.

[0082] According to an embodiment of this disclosure, the controller is further configured to: generate a defogging command based on fogging warning information on the display screen, wherein the defogging command is used to control the air conditioning system to adjust the control parameters of the air conditioning system of the rail vehicle to eliminate or prevent fogging on the front of the display screen; and send the defogging command to the air conditioning system.

[0083] According to embodiments of this disclosure, the display screen fogging warning information may include a warning result indicating whether fogging has occurred, and a warning level indicating the degree of fogging. For example, when the warning condition is a temperature threshold, the warning result is determined based on the comparison between the first temperature parameter, the second environmental parameter, and their respective corresponding temperature thresholds in the first environmental parameters; when the warning result indicates fogging, the warning level is determined based on how much the first temperature parameter and the second temperature parameter exceed the temperature threshold. For example, the larger the value exceeding the threshold, the higher the degree of fogging, and the higher the warning level.

[0084] According to embodiments of this disclosure, the controller can generate different defogging commands for different warning levels based on fogging warning information from the display screen. For example, in the case of a high warning level, the defogging command controls the air conditioning system to adjust the control parameters of the rail vehicle's air conditioning system, so as to eliminate or prevent fogging on the front of the display screen based on control parameters with higher power.

[0085] For example, temperature and / or humidity data of the display screen can be collected in advance when it is displaying normally (without fogging) to determine the normal temperature and humidity range.

[0086] When the first environmental parameter includes both a first temperature parameter and a first humidity parameter, and the second temperature parameter includes both a second temperature parameter and a second humidity parameter, the system can determine whether at least one of these parameters exceeds its corresponding normal parameter range. If at least one parameter exceeds the normal parameter range, a warning result is generated based on the parameter exceeding the normal parameter range, and the warning result is displayed on the screen, such as "Temperature abnormal, display screen fogging." Furthermore, different warning levels can be generated based on the extent to which at least one parameter exceeds the normal parameter range. For example, the greater the temperature parameter exceeds the normal parameter range, the higher the warning level.

[0087] It should be noted that since fogging is prone to occur in high temperature and high humidity environments, conditions below the normal parameter range are considered normal. In another specific embodiment, the normal parameter range can be replaced with a normal parameter threshold, and whether fogging occurs can be determined by whether the parameter value exceeds the normal parameter threshold.

[0088] According to embodiments of this disclosure, since fogging on the front of the display screen can affect the operator's ability to view information such as the status of rail vehicles, while fogging on the back of the display screen does not significantly affect the viewing of such information, in order to avoid fogging on the front of the display screen, the temperature difference and / or humidity difference between the front and back of the display screen can be compared to determine whether the display screen is fogged.

[0089] According to embodiments of this disclosure, similar to determining the normal temperature and humidity ranges, the normal temperature difference range and the normal humidity difference range are also determined by actual data collection when the front of the display screen is not fogged.

[0090] If the difference between the first temperature parameter and the second temperature parameter exceeds the normal temperature difference range, and / or the difference between the first humidity parameter and the second humidity parameter exceeds the normal humidity difference range, a fogging warning message for the display screen is generated based on the parameter exceeding the normal difference range. Furthermore, different warning levels can be generated based on the extent to which at least one parameter exceeds the normal difference range. For example, the greater the temperature parameter exceeds the normal difference range, the higher the warning level.

[0091] According to embodiments of this disclosure, the control parameters include at least one of the following: temperature control command, wind speed control command, and wind direction control command.

[0092] In one specific embodiment, the number of control parameters and the magnitude of their changes can be determined based on the level of the warning. For example, the higher the warning level, the more control parameters there are, and the greater the magnitude of their changes.

[0093] According to embodiments of this disclosure, the temperature and airflow direction of the air conditioner in the control room can be automatically adjusted based on the warning information displayed on the screen, thereby reducing the temperature difference between the back and front of the HMI display screen. This achieves online warning of screen fogging and provides online reminders to maintenance personnel and drivers, while significantly reducing fogging on the front of the display screen.

[0094] According to embodiments of this disclosure, a temperature and humidity calculation model can also be constructed, and temperature and humidity data during normal display can be collected to provide temperature and humidity ranges as early warning thresholds. This temperature and humidity calculation model can be embedded as a separate module into the rail vehicle control system. When the rail vehicle starts running or is undergoing commissioning, temperature and humidity data before and after the display screen are collected in real time through the first and second detectors, and the temperature and humidity calculation model is used to generate a fogging warning message for the display screen. When the rail vehicle stops running, the temperature and humidity calculation model will automatically enter a dormant state to save energy.

[0095] Another embodiment of this disclosure also modifies the software of the rail vehicle control system, enabling the modified rail vehicle control system to provide early warnings and handle whether the display screen is fogged.

[0096] Figure 3 A flowchart illustrating a display screen fogging treatment method according to a specific embodiment of the present disclosure is shown. This display screen fogging treatment method can be implemented by a controller of a rail vehicle control system.

[0097] like Figure 3 As shown, the display screen fogging treatment method 300 includes operations S310 to S320.

[0098] In operation S310, the first environmental parameter from the first detector and the second environmental parameter from the second detector are obtained.

[0099] In operation S320, if the first environmental parameter and the second environmental parameter meet predetermined conditions, a fogging warning message for the display screen is generated, wherein the predetermined conditions characterize the conditions under which fog forms on the front of the display screen.

[0100] According to embodiments of this disclosure, a first environmental parameter characterizes environmental parameters on a first side, and a second environmental parameter characterizes environmental parameters on a second side. The first side is the side of the rail vehicle control system's display screen where the operator interacts with the control personnel, and the second side is the side away from the display screen where the operator interacts with the control personnel. It can be understood that the first side is the front side of the display screen, and the second side is the rear side of the display screen.

[0101] According to embodiments of this disclosure, the predetermined condition is a condition where the display screen fogs up or is about to fog up. For example, the predetermined condition may be a temperature threshold or temperature range when the temperature meets the fogging condition, or a humidity threshold or humidity range when the humidity meets the fogging condition; or, it may be a threshold or range when both temperature and humidity meet the fogging condition simultaneously.

[0102] According to embodiments of this disclosure, the display screen fogging warning information may include a warning result indicating whether fogging has occurred, and a warning level.

[0103] In one specific embodiment, a display screen fogging warning interface can be designed based on open-source web development software. The first and second detectors can send first and second environmental parameters to the display screen's processor via a wireless connection within the rail vehicle, so that the detected first and second environmental parameters can be displayed on the display screen; subsequently, the processor displays the first and second environmental parameters on the display screen fogging warning interface. Furthermore, the display screen's processor can also receive display screen fogging warning information generated by the controller and display this information to the control personnel through the display screen fogging warning interface.

[0104] For example, a fogging warning interface for the display screen can be developed within the HMI software of the original rail vehicle control system using Linux's QT software design methodology. This interface is a sub-interface of the original rail vehicle control system's HMI interface. Control personnel can log in online through the HMI interface and operate multiple modules, such as the air conditioning system.

[0105] According to embodiments of this disclosure, the display screen may not display the first environmental parameter and the second environmental parameter. Instead, the display screen fogging warning information may be displayed to the controller through the display screen fogging warning interface only after the controller generates the display screen fogging warning information.

[0106] The embodiments of this disclosure employ modular programming and a Linux-based QT software design approach, eliminating the need for third-party detection software for early warning. The rail vehicle also does not require granting permissions to third-party software, thus ensuring the safety of the control vehicle's internal environment while simultaneously providing warnings for display screen fogging. Therefore, the embodiments of this disclosure can quickly, accurately, and promptly issue early warnings for display screen fogging, providing online reminders to control personnel and ensuring safe train operation.

[0107] According to embodiments of this disclosure, the controller can also modify predetermined conditions through the fogging warning interface on the display screen. For example, in different cities with different climates, the controller can adjust the normal parameter range, normal difference range, threshold, etc., by using the buttons on the fogging warning interface on the display screen according to the actual detection situation.

[0108] According to embodiments of this disclosure, obtaining a first environmental parameter from a first detector and a second environmental parameter from a second detector includes: obtaining the first environmental parameter from the first detector and obtaining the second environmental parameter from the second detector via a wireless connection inside the rail vehicle.

[0109] According to embodiments of this disclosure, a first environmental parameter can be obtained from a first detector and a second environmental parameter can be obtained from a second detector via an Ethernet or MVB network.

[0110] Figure 4A flowchart illustrating a display screen fogging warning method according to an embodiment of the present disclosure is shown schematically.

[0111] like Figure 4 As shown, the display screen fogging warning method 400 includes operations S310-S320 and operations S410-S420. Operations S310-S320 are related to... Figure 3 The operation is similar in China, so I will not go into details here.

[0112] When operating S410, a warning command of at least one warning level is generated based on the fogging warning information displayed on the screen.

[0113] When operating S420, a warning command is sent to the buzzer of the rail vehicle control system so that the buzzer will produce a beeping alarm sound.

[0114] According to embodiments of this disclosure, a warning command matching the warning level in the fogging warning information on the display screen can be generated. After the warning command is sent to the buzzer of the rail vehicle control system, the buzzer can generate a buzzing alarm sound matching the warning level.

[0115] In another embodiment, the display fogging warning information only includes a warning result indicating whether fogging has occurred. After generating the display fogging warning information, a display fogging warning information without distinguishing alarm levels is generated based on the display fogging warning information, producing the same buzzer alarm sound.

[0116] According to embodiments of this disclosure, the first environmental parameter includes a first temperature parameter and a first humidity parameter, and the second environmental parameter includes a second temperature parameter and a second humidity parameter; when the first environmental parameter and the second environmental parameter meet predetermined conditions, generating a display screen fogging warning message includes:

[0117] If at least one of the first temperature parameter, the first humidity parameter, the second environmental parameter, and the second humidity parameter exceeds its corresponding normal parameter range, a fogging warning message for the display screen is generated based on the parameter that exceeds the normal parameter range. The normal parameter range is determined when there is no fogging on the front of the display screen.

[0118] Alternatively, if the difference between the first temperature parameter and the second temperature parameter exceeds the normal temperature difference range, and / or the difference between the first humidity parameter and the second humidity parameter exceeds the normal humidity difference range, a fogging warning message for the display screen is generated based on the parameter that exceeds the normal difference range. The normal temperature difference range and the normal humidity difference range are determined when there is no fogging on the front of the display screen.

[0119] According to embodiments of this disclosure, in order to achieve the purpose of fogging warning, there are slight differences between the normal parameter range, the normal temperature difference range, the normal humidity difference range, and the actual range of normal operating parameters of the display screen. For example, the normal parameter range, the normal temperature difference range, and the normal humidity difference range are lower than the actual range of normal operating parameters of the display screen, so as to ensure that a warning is issued before the display screen fogs up, or to take action to prevent fogging.

[0120] Figure 5 A flowchart illustrating a display screen defogging method according to an embodiment of the present disclosure is shown schematically.

[0121] like Figure 5 As shown, the display screen defogging method 500 includes operations S310-S320 and operations S510-S520. Operations S310-S320 are related to... Figure 3 The operation is similar in China, so I will not go into details here.

[0122] When operating the S510, control commands are generated based on the fogging warning information displayed on the screen.

[0123] When operating the S520, control commands are sent to the air conditioning system of the rail vehicle via a wireless connection inside the rail vehicle.

[0124] According to embodiments of this disclosure, the control commands include at least one of the following: temperature control commands, wind speed control commands, and wind direction control commands.

[0125] In one specific embodiment, when the display screen fogging warning information indicates that the display screen is fogging or about to fog up, the temperature of the control room can be reduced, the air conditioning airflow direction of the control room can be directed towards the display screen, and the wind speed can be increased according to the first environmental parameter and the second environmental parameter of the display screen in the display screen fogging warning information, so as to reduce the temperature difference between the back and front of the display screen and thus reduce fogging on the front of the display screen.

[0126] In another specific embodiment, the controller is equipped with a temperature and humidity calculation model. This model can determine whether the display screen is fogging based on a first environmental parameter and a second environmental parameter, and can also generate feedback data. The feedback data may include optimal control parameters determined based on air conditioning performance and matching the first and second environmental parameters. When a display screen fogging warning message indicates that the display screen is fogging or about to fog up, the warning result and the optimal control parameters are combined to form a display screen fogging warning message. After generating control commands based on the display screen fogging warning message, the air conditioning system can parse the optimal control parameters from the control commands and adjust the control parameters of the air conditioning equipment in the control room based on these optimal control parameters; or, the optimal control parameters can be used as the control parameters for the control room.

[0127] Figure 6 The diagram illustrates an application scenario of a display screen fogging warning method according to an embodiment of the present disclosure.

[0128] like Figure 6 As shown, in one specific embodiment, both the first detector and the second detector are temperature and humidity sensors 601. For example, the first temperature parameter and the first humidity parameter are obtained by the temperature and humidity sensor disposed on the front side of the display screen, and the second temperature parameter and the second humidity parameter are obtained by the temperature and humidity sensor disposed on the rear side of the display screen.

[0129] The HMI display 602 can have a fogging warning interface, through which control personnel can view fogging warning information.

[0130] The controller 603 can interact with the temperature and humidity sensor 601, the HMI display 602, and the air conditioning system 604 via Ethernet or MVB network. For example, the controller 603 can acquire environmental parameters detected by the temperature and humidity sensor 601 via Ethernet or MVB network; control the display page and information of the HMI display 602 via Ethernet or MVB network; and control the temperature, fan speed, and airflow direction of the air conditioning system 604 via Ethernet or MVB network.

[0131] This disclosure also provides a rail vehicle, including the aforementioned rail vehicle control system, wherein the rail vehicle control system is located in the control room of the rail vehicle and is used to control the operation of the rail vehicle through human-machine interaction with the control personnel; an air conditioning system is used to control the air conditioning equipment of the control room and other carriages of the rail vehicle; and the control parameters of the air conditioning system are adjusted through interactive operation with the rail vehicle control system.

[0132] For example, rail vehicle control systems include, Figure 1 The control console, display screen, and controller shown can be embedded within the control console. Alternatively, the controller can be located in other carriages of the rail vehicle.

[0133] This disclosed embodiment can achieve display screen warning and defogging with simple modifications to existing rail vehicles, resulting in low implementation costs and an energy-efficient and environmentally friendly warning device. The technical solution of this disclosed embodiment is simple, highly operable, and fully utilizes the train's Ethernet or MVB network without requiring additional communication networks or affecting the communication of other equipment on the train. This increases the stability and safety of the HMI display screen fogging warning device, making it promising for application and easily accepted by users.

[0134] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this disclosure can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this disclosure. In particular, the features described in the various embodiments and / or claims of this disclosure can be combined or combined in various ways without departing from the spirit and teachings of this disclosure. All such combinations and / or combinations fall within the scope of this disclosure.

[0135] The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of this disclosure. It should be understood that the above descriptions are merely specific embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A method for dealing with fogging on a display screen, applied to the central control unit of a rail vehicle control system, comprising: In response to the start of operation of the rail vehicle, a first environmental parameter from a first detector and a second environmental parameter from a second detector are acquired, wherein the first environmental parameter represents the environmental parameter on a first side and the second environmental parameter represents the environmental parameter on a second side, the first side being the side of the display screen of the rail vehicle control system that interacts with the controller, and the second side being the side away from the display screen that interacts with the controller. When the difference between the first environmental parameter and the second environmental parameter exceeds the normal difference range, the temperature and humidity calculation model embedded in the rail vehicle control system is put into operation, so that the temperature and humidity calculation model performs the following operations: generating different warning levels according to the magnitude of the difference exceeding the normal difference range, and determining the number of control parameters and the magnitude of change of the control parameters according to the warning level. The normal difference range is dynamically adjusted by the controller through the button on the fog warning interface of the display screen, according to the actual detection situation in different cities with different climates when there is no fog on the front of the display screen. Based on the number of control parameters and the range of change of the control parameters, a control command is generated. The control parameters are the control parameters of the air conditioning equipment in the control room. The display screen is set in the control room. The control parameters include at least one of the following: temperature, wind speed, and wind direction. The control commands are sent to the air conditioning system in the control room of the rail vehicle via a wireless connection inside the rail vehicle, so as to control the control parameters in the control room. In response to the rail vehicle stopping operation, the temperature and humidity calculation model is controlled to enter a dormant state.

2. The method according to claim 1, wherein, The acquisition of the first environmental parameters from the first detector and the second environmental parameters from the second detector includes: The first environmental parameters are obtained from the first detector and the second environmental parameters are obtained from the second detector via a wireless connection inside the rail vehicle.

3. The method according to claim 1, further comprising: Generate warning instructions of at least one warning level; as well as The warning command is sent to the buzzer of the rail vehicle control system so that the buzzer produces a beeping alarm sound.

4. The method according to claim 1, wherein, The first environmental parameter includes a first temperature parameter and a first humidity parameter; the second environmental parameter includes a second temperature parameter and a second humidity parameter; the normal difference range includes a normal temperature difference range and a normal humidity difference range; the method further includes: If at least one of the first temperature parameter, the first humidity parameter, the second environmental parameter, and the second humidity parameter exceeds its corresponding normal parameter range, a fogging warning message for the display screen is generated based on the parameter exceeding the normal parameter range, wherein the normal parameter range is determined when there is no fogging on the front of the display screen; or, if the difference between the first temperature parameter and the second temperature parameter exceeds the normal temperature difference range, and / or the difference between the first humidity parameter and the second humidity parameter exceeds the normal humidity difference range, it is determined that the difference between the first environmental parameter and the second environmental parameter exceeds the normal difference range.

5. The method according to claim 4, further comprising: Based on the fogging warning information on the display screen, the control command is generated, wherein the control command includes at least one of the following: temperature control command, wind speed control command, and wind direction control command.

6. A rail vehicle control system, comprising: The display screen is used for human-machine interaction with the controller and to transmit the controller's operations to the central control unit; A first detector is disposed on the first side of the display screen where the controller interacts, for detecting a first environmental parameter on the first side and transmitting the first environmental parameter to the central control unit; The second detector is located on the second side away from the display screen and the interaction between the controller and the display operator. It is used to detect the second environmental parameter on the second side and transmit the second environmental parameter to the central control unit. The central control unit is used to perform the method as described in any one of claims 1 to 5.

7. The rail vehicle control system according to claim 6, wherein, The first detector is detachably mounted on the first side, and the second detector is detachably mounted on the second side; the first detector includes a temperature and / or humidity sensor, and the second detector includes a temperature and / or humidity sensor. The first detector transmits the first environmental parameters to the central control unit via a wireless connection inside the rail vehicle; the first environmental parameters include a first temperature and humidity parameter and / or a first humidity parameter. The second detector transmits the second environmental parameters to the central control unit via a wireless connection inside the rail vehicle; the second environmental parameters include a second temperature and humidity parameter and / or a second humidity parameter.

8. The rail vehicle control system according to claim 6 further includes: A buzzer is used to receive warning commands from the central control unit and generate a buzzing alarm sound.

9. The rail vehicle control system according to claim 6, wherein, The central control unit controls the air conditioning system of the rail vehicle via a wireless connection inside the rail vehicle.

10. A rail vehicle comprising the rail vehicle control system according to any one of claims 6 to 9, wherein, The rail vehicle control system is located in the control room of the rail vehicle and is used to control the operation of the rail vehicle through human-machine interaction with the control personnel. An air conditioning system is used to control the air conditioning equipment in the control room and other carriages of the rail vehicle; and to adjust the control parameters of the air conditioning system through interactive operation with the rail vehicle control system.

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