A method, device and medium for controlling lighting of a train running at low speed

Abstract

The present application discloses a method, device and medium for controlling lighting when a train is running at a low speed. The method relates to the field of rail transit, and solves the problem of erroneous judgment of a train running at a low speed due to a fault in a detection device, and determines whether the status signal of any detection device is detected as a valid signal of train arrival and whether the status signal of any detection device other than the currently warned detection device is detected as a valid signal of train arrival within a preset verification time; if so, determines whether the train is running at a low speed based on the distance and / or trigger time of the two warned detection devices. After the first detection device detects the train, it only issues a train arrival warning message, which needs to be confirmed by the second detection device. Only after the arrival of the train is confirmed, it is determined whether the train is running at a low speed. If the first detection device is a false alarm, it is highly likely that the signal of the second detection device will not be received, which improves the accuracy of the system.

Description

Technical Field

[0001] The present application relates to the field of rail transit, and in particular to a method, device and medium for controlling lighting of a train running at a low speed. Background Art

[0002] The lighting system deployed in the railway tunnel usually arranges lighting fixtures at intervals of 50m. When the train is running normally, the emergency lighting fixtures in the tunnel are kept off. When the train stops in the tunnel due to fire / fault, the lighting fixtures will be automatically triggered to turn on when the train stops or the speed drops below the threshold, providing basic lighting conditions for personnel evacuation.

[0003] The detection equipment usually used is an in-place detection device, such as an infrared detection device or an ultrasonic detection device, which uses infrared or ultrasonic technology to detect the position or distance of an object. When the moving object reaches the predetermined target position, the detection device will send a signal or trigger a corresponding action. The speed of the train is determined by the time it takes for the train to completely pass through a detection device.

[0004] When a single detection device in the railway tunnel lighting system fails, it will trigger the tunnel lighting system to automatically turn on, causing waste of electric energy, shortening the life of the lamps and posing a risk of affecting the normal operation of the train.

[0005] It can be seen that how to solve the problem of erroneous low-speed train judgment and erroneous action caused by a failure of a detection device is a technical problem that needs to be solved urgently by people in this field. Summary of the invention

[0006] The purpose of the present application is to provide a method, device and medium for controlling lighting for low-speed train travel, so as to solve the problem of erroneous action caused by the issuance of an erroneous train low-speed warning signal due to a failure of a detection device.

[0007] In order to solve the above technical problems, the present application provides a train low-speed driving lighting control method, which is applied to an emergency lighting system, comprising: a plurality of train detection units, a controller, and a lighting system; the train detection units are respectively arranged in a train tunnel at equal intervals; the train detection unit comprises: a first type of detection equipment and a second type of detection equipment; the first type of detection equipment and the second type of detection equipment are respectively connected to the controller; the controller is connected to the lighting system;

[0008] The method comprises:

[0009] When the status signal of any one of the first-type detection equipment or the second-type detection equipment is detected to be a valid signal of train arrival, a train arrival warning message is issued;

[0010] Determine whether a status signal of any one of the first-type detection devices or the second-type detection devices other than the detection device that has been warned is detected as a valid signal of train arrival within a preset verification time;

[0011] If yes, confirm the train arrival warning information, and determine whether the train is running at a low speed according to the distance and / or trigger time of the two warning detection devices;

[0012] If it is running at a low speed, the lighting system is controlled to start.

[0013] On the other hand, in the above-mentioned train low-speed driving lighting control method, the state signal of the first type of detection device or the second type of detection device is a valid train arrival signal, including:

[0014] Receiving a train arrival collection signal sent by the first type of detection equipment or the second type of detection equipment;

[0015] Determining whether the reliability of the detection device that issues the train arrival collection signal is high;

[0016] If yes, then setting the status signal of the detection device that sends the train arrival collection signal as a train arrival valid signal;

[0017] If not, the current train arrival collection signal is ignored.

[0018] On the other hand, in the above-mentioned train low-speed driving lighting control method, the first type of detection equipment is a piston wind pressure difference detection equipment, and the second type of detection equipment is a train arrival detection equipment; the state signal of any one of the first type of detection equipment or the second type of detection equipment is monitored as a valid train arrival signal, and the train arrival warning information is issued, including:

[0019] If it is detected that the status signal of the first type of detection equipment is a valid signal of train arrival, the train arrival warning information is immediately issued;

[0020] If the monitored state signal of the second type of detection equipment is a valid signal of train arrival, determining whether the current state signal of the second type of detection equipment is still a valid signal of train arrival after a preset confirmation time;

[0021] If so, the train arrival warning information is issued.

[0022] On the other hand, in the above-mentioned train low-speed driving lighting control method, the determining whether the status signal of any one of the first-type detection devices or the second-type detection devices other than the currently warned detection device is monitored as a valid train arrival signal within the preset verification time includes:

[0023] Obtain the first and second detection devices for verification that are closest to the detection device that has been warned and have high credibility in the uplink direction, and the first and second detection devices for verification that are closest to the detection device that has been warned and have high credibility in the downlink direction;

[0024] Determine whether the state signal of any one of the four detection devices used for verification changes to a valid train arrival signal within a preset first verification time;

[0025] If the status signal of any one of the four detection devices used for verification has not changed to a valid signal of train arrival, it is determined whether the status signal of another detection device in the train detection unit to which the detection device that has been warned currently belongs has changed to a valid signal of train arrival within the preset first verification time;

[0026] If the status signal of another detection device in the train detection unit to which the detection device that has been warned currently belongs changes to a valid train arrival signal, it is determined that the status signal of any one of the first-type detection devices or the second-type detection devices other than the detection device that has been warned currently is monitored as a valid train arrival signal within the preset verification time;

[0027] Correspondingly, judging whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices includes:

[0028] Whether the train is running at a low speed is determined according to the triggering time of the two detection devices in the current train detection unit.

[0029] On the other hand, in the above train low-speed driving lighting control method, if the state signal of any one of the above four detection devices used for verification changes to a valid train arrival signal within the preset first verification time, it is determined that the state signal of any one of the first-type detection devices or the second-type detection devices other than the currently warned detection device is monitored as a valid train arrival signal within the preset verification time;

[0030] Correspondingly, judging whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices includes:

[0031] Obtain the difference between the first numbers of two detection devices that have been warned;

[0032] Obtaining a first trigger time difference between two warning detection devices;

[0033] Obtaining a first distance according to the first number difference and the distance between the adjacent train detection units;

[0034] Obtaining a first running speed according to a ratio of the first distance to the first trigger time;

[0035] Determining whether the first running speed is less than a preset minimum train speed;

[0036] If yes, it is judged to be running at low speed.

[0037] On the other hand, in the above train low-speed running lighting control method, if it is determined that the first running speed is greater than a preset minimum train speed, the method further includes:

[0038] Determine the running direction of the train based on two warning detection devices;

[0039] The second detection device that has been warned is used as a real-time detection device;

[0040] Determine whether the real-time detection device is the last detection device with high credibility in the running direction;

[0041] If it is not the last detection device with high credibility in the running direction, obtaining the first category detection device and the second category detection device which are closest to the real-time detection device in the running direction and have high credibility as the target detection device;

[0042] Obtaining the longest time required to reach the target detection device as the current preset continuous monitoring time;

[0043] Determine whether the status signal of any one of all the remaining detection devices with high credibility in the running direction changes to a valid signal of train arrival within the current preset continuous monitoring time;

[0044] If the status signals of all remaining detection devices with high credibility in the running direction have not changed to valid signals of train arrival, and the current theoretical running speed is lower than the preset minimum train speed, it is judged as low-speed running, and the lighting system is controlled to start;

[0045] If the state signal of any one of all the remaining detection devices with high credibility in the running direction changes to a valid signal of train arrival, the theoretical running speed of the train from the real-time detection device to the currently triggered detection device is calculated;

[0046] Determining whether the current theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed;

[0047] If the current theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed, the currently triggered detection device is used as the real-time detection device, and the process returns to the step of determining whether the real-time detection device is the last detection device with high credibility in the running direction;

[0048] If the current theoretical operating speed is lower than the preset maximum train speed and lower than the preset minimum train speed, it is judged as low-speed operation and the lighting system is controlled to start.

[0049] On the other hand, in the above train low-speed running lighting control method, on the other hand, in the above train low-speed running lighting control method, if the current theoretical running speed is higher than the preset maximum train speed, it also includes:

[0050] The credibility of the target detection device is set to low, and the step of returning to the step of obtaining the first and second category detection devices which are closest to the real-time detection device in the running direction and have high credibility as the target detection devices.

[0051] On the other hand, in the above train low-speed running lighting control method, the preset first verification time is obtained according to the following steps:

[0052] Obtain a second serial number difference between the detection device that has been warned currently and the detection device that is farthest from the detection device that has been warned currently among the four detection devices used for verification, and use the second serial number difference as the first variable;

[0053] Obtaining a first ratio of a distance between two adjacent train detection units and a preset minimum train speed;

[0054] The preset first verification time is obtained according to the product of the first variable and the first ratio.

[0055] On the other hand, in the above-mentioned train low-speed running lighting control method, the preset confirmation time is obtained by the ratio of the preset minimum train length to the preset maximum train speed.

[0056] On the other hand, in the above-mentioned train low-speed driving lighting control method, the obtaining of the longest time required to reach the target detection device as the current preset continuous monitoring time includes:

[0057] Obtaining a third serial number difference of a detection device that is farthest from the real-time detection device among the target detection devices, and using the third serial number difference as a second variable;

[0058] Obtaining a first ratio of a distance between two adjacent train detection units and a preset minimum train speed;

[0059] The preset continuous monitoring time is obtained according to the product of the second variable and the first ratio.

[0060] In order to solve the above technical problems, the present application also provides a train low-speed driving lighting control device, which is applied to an emergency lighting system, comprising: a plurality of train detection units, a controller, and a lighting system; the train detection units are respectively arranged in a train tunnel at equal intervals; the train detection unit comprises: a first type of detection equipment and a second type of detection equipment; the first type of detection equipment and the second type of detection equipment are respectively connected to the controller; the controller is connected to the lighting system;

[0061] The device comprises:

[0062] A monitoring module, configured to detect that a status signal of any one of the first-type detection devices or the second-type detection devices is a valid signal of train arrival, and issue a train arrival warning message;

[0063] A judgment module, used to judge whether the status signal of any one of the first-type detection devices or the second-type detection devices other than the currently warned detection device is detected as a valid signal of train arrival within a preset verification time; if so, trigger the low-speed judgment module;

[0064] The low-speed judgment module is used to confirm the train arrival warning information and judge whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices;

[0065] The lighting module is used to control the lighting system to start if the vehicle is running at a low speed.

[0066] In order to solve the above technical problems, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned train low-speed lighting control method are implemented.

[0067] The train low-speed lighting control method provided in the present application is applied to the emergency lighting system, including: multiple train detection units, a controller, and a lighting system; the train detection units are respectively arranged at equal intervals in the train tunnel; the train detection unit includes: a first-class detection device and a second-class detection device; the first-class detection device and the second-class detection device are respectively connected to the controller; the controller is connected to the lighting system; the method includes: monitoring that the status signal of any first-class detection device or second-class detection device is a valid signal of train arrival, and issuing a train arrival warning message; judging whether the status signal of any first-class detection device or second-class detection device other than the currently warned detection device is monitored as a valid signal of train arrival within a preset verification time; if so, confirming the train arrival warning message, and judging whether the train is running at a low speed according to the distance and / or trigger time of the two warned detection devices; if it is running at a low speed, controlling the lighting system to start. After the first detection device detects a train, it only issues a train arrival warning message, which needs to be confirmed by the second detection device. Only after confirming the arrival of the train can it be judged whether the train is traveling at a low speed. If the first detection device is a false alarm, it is highly likely that the signal from the second detection device will not be received. The failure of a single detection device will not cause the system to malfunction, thereby improving the accuracy of the system.

[0068] In addition, the present application also provides a device and a medium, which correspond to the above method and have the same effect as above. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0070] Figure 1 A schematic diagram of an emergency lighting system provided in an embodiment of the present application;

[0071] Figure 2 A flow chart of a method for controlling lighting of a train running at low speed provided in an embodiment of the present application;

[0072] Figure 3 A flowchart of another method for controlling lighting of a train running at low speed provided by an embodiment of the present application;

[0073] Figure 4 A structural diagram of a train low-speed running lighting control device provided in an embodiment of the present application;

[0074] Figure 5 A structural diagram of another train low-speed lighting control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0075] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0076] The core of this application is to provide a method, device and medium for controlling lighting of a train running at low speed.

[0077] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0078] Railway tunnels are narrow passages for trains to travel through, and lighting fixtures are usually arranged at intervals of 50m. When the train is running normally, the emergency lighting fixtures in the tunnel are kept off. When the train stops in the tunnel due to fire / fault, the lighting fixtures will be automatically triggered to turn on when the train stops or the speed drops below a certain threshold, providing basic lighting conditions for personnel evacuation. Therefore, it is necessary to monitor the speed of the train; the detection equipment usually used is an in-place detection device, such as infrared detection equipment, ultrasonic detection equipment, which uses infrared or ultrasonic technologies to detect the position or distance of an object. When the moving object reaches the predetermined target position, the detection equipment will send a signal or trigger a corresponding action, and the train's speed is calculated by calculating the time it takes for the train to completely pass through a detection device.

[0079] However, when a single detection device in the railway tunnel lighting system fails, it will trigger the tunnel lighting system to automatically turn on, causing waste of electric energy, shortening the life of the lamps and posing a hidden danger of affecting the normal operation of trains.

[0080] To solve the above problems, this embodiment provides a method for controlling lighting of a train running at a low speed, which is applied to an emergency lighting system. Figure 1 A schematic diagram of an emergency lighting system provided in an embodiment of the present application, such as Figure 1 As shown, it includes: a plurality of train detection units 11, a controller 12, and a lighting system 13; the train detection units 11 are respectively arranged in the train tunnel at equal intervals; the train detection unit includes: a first type of detection equipment 111 and a second type of detection equipment 112; the first type of detection equipment 111 and the second type of detection equipment 112 are respectively connected to the controller 12; the controller 12 is connected to the lighting system 13;

[0081] Figure 2 A schematic diagram of a train low-speed driving lighting control method provided in an embodiment of the present application, such as Figure 2 As shown, the method includes:

[0082] S11: When the status signal of any one of the first-type detection devices 111 or the second-type detection devices 112 is detected as a valid train arrival signal, a train arrival warning message is issued;

[0083] S12: Determine whether the status signal of any first-type detection device 111 or second-type detection device 112 other than the detection device that has been warned is detected as a valid train arrival signal within a preset verification time;

[0084] S13: If yes, confirm the train arrival warning information, and determine whether the train is running at a low speed according to the distance and / or trigger time of the two warning detection devices;

[0085] S14: If it is running at a low speed, the lighting system 13 is controlled to start.

[0086] It should be noted that the application environment of this application is a single-track railway tunnel, that is, only one train is allowed to run in the tunnel at the same time.

[0087] like Figure 1 As shown, the present application is applied to a train arrival warning system, wherein a controller 12 is used to receive signals sent by a first type detection device 111 and a second type detection device 112 included in a train detection unit 11, so as to determine whether a train has arrived and further determine whether the train is traveling at a low speed.

[0088] Specifically, the first type of detection equipment can be a piston wind pressure difference detection equipment. When the train enters a tunnel, the space between the front of the train and the tunnel forms a closed passage. The speed of the vehicle will cause the airflow to form a pressure change inside the tunnel, which will generate piston wind on the route. The detection equipment installed on the tunnel wall will be affected by the piston wind. The equipment will form an air pressure difference δPab at both ends in the horizontal direction of the train, δPab=|Pa-Pb|, where Pa is the pressure in the inlet direction and Pb is the pressure in the outlet direction. The first type of detection equipment 111 can determine whether a vehicle is coming based on this principle.

[0089] Specifically, the second type of detection equipment can be a train arrival detection device, which refers to a device for detecting whether an object has reached a target position or state. It usually uses components such as sensors, processors, and signal processors to achieve accurate detection of the position of an object. For example, photoelectric sensors, infrared sensors, and acoustic wave sensors. Theoretically, if the train arrives and the first type of detection equipment 111 and the second type of detection equipment 112 work normally, the first type of detection equipment 111 detects the signal earlier than the second type of detection equipment 112.

[0090] The train arrival warning system works normally, and the controller 12 receives signals from all detection devices (in this application, for the convenience of description, the first-class detection devices 111 and the second-class detection devices 112 are collectively referred to as detection devices). Step S11 detects that the status signal of any first-class detection device 111 or the second-class detection device 112 is a valid train arrival signal, and issues a train arrival warning message. First, if any detection device issues a valid train arrival signal, it is equivalent to issuing a warning message, and the current detection device cannot be fully trusted; the valid train arrival signal here refers to the signal that is considered valid relative to the detection device that issues the signal. It can be a signal directly collected by the detection device or a signal that has been processed and judged. This embodiment does not make specific restrictions.

[0091] When the status signal of a detection device is a valid signal of train arrival and a train arrival warning message is issued, step S12 needs to determine whether the status signal of any first-category detection device 111 or second-category detection device 112 other than the currently warned detection device is detected as a valid signal of train arrival within the preset verification time; that is, a second detection device is needed to verify whether the signal of the first detection device is valid. The preset verification time mentioned in this embodiment can be customized, usually based on the running speed of the train on the track and the interval distance set by the detection device. The second detection device can be in the same position as the first detection device, or in a different position.

[0092] If within the preset verification time, the status signal of any first-type detection device 111 or second-type detection device 112 other than the currently warned detection device is detected as a valid train arrival signal, it means that the train arrival warning information issued by the first detection device has been verified and confirmed by the second detection device, and the train has indeed arrived, and then a train arrival signal is issued. If the first detection device is a false alarm, it is highly likely that the signal of the second detection device will not be received, thereby improving the accuracy of train arrival detection.

[0093] After the arrival of the train is confirmed, it is determined whether the train is running at a low speed. Usually, the travel speed in the interval is calculated. Then, it is necessary to determine whether the train is running at a low speed based on the distance and / or trigger time of the two warning detection devices. In a specific application, for example, it is determined whether the train is running at a low speed based on the distance between the two warning detection devices. It is determined whether the distance between the two warning detection devices is less than the shortest theoretical running distance (the distance that the train travels at the lowest speed within a certain period of time). If so, it means that the train is running at a low speed.

[0094] The triggering time of the two warning detection devices is used to determine whether the train is running at a low speed. This is equivalent to interval speed measurement. Within a certain interval, it is determined whether the time used is greater than the theoretical driving time (the time required for the train to run at the lowest speed within a certain interval). If it is greater, it means that the train is running at a low speed.

[0095] Whether the train is running at a low speed is determined based on the distance and trigger time of the two warning detection devices. The specific travel speed is calculated based on the distance the train has traveled and the time it has taken to determine whether it is running at a low speed.

[0096] If it is determined to be low-speed driving, it is necessary to control the lighting system 13 to turn on the lighting to provide basic lighting conditions for personnel evacuation.

[0097] The train low-speed lighting control method provided by the present application is applied to an emergency lighting system 13, including: multiple train detection units 11, a controller 12, and a lighting system 13; the train detection units 11 are respectively arranged at equal intervals in the train tunnel; the train detection unit includes: a first-class detection device 111 and a second-class detection device 112; the first-class detection device 111 and the second-class detection device 112 are respectively connected to the controller 12; the controller 12 is connected to the lighting system 13; the method includes: monitoring that the status signal of any first-class detection device 111 or second-class detection device 112 is a valid signal of train arrival, and issuing a train arrival warning message; judging whether the status signal of any first-class detection device 111 or second-class detection device 112 other than the currently warned detection device is monitored as a valid signal of train arrival within a preset verification time; if so, confirming the train arrival warning information, judging whether the train is running at a low speed according to the distance and / or trigger time of the two warned detection devices; if it is running at a low speed, controlling the lighting system 13 to illuminate. After the first detection device detects a train, it only issues a train arrival warning message, which needs to be confirmed by the second detection device. Only after confirming the arrival of the train can it be judged whether the train is traveling at a low speed. If the first detection device is a false alarm, it is highly likely that the signal from the second detection device will not be received. The failure of a single detection device will not cause the system to malfunction, thereby improving the accuracy of the system.

[0098] Through the above embodiments, in order to further improve the accuracy of each detection device sending a valid train arrival signal, this embodiment provides a preferred solution, the state signal of the first type of detection device 111 or the second type of detection device 112 is a valid train arrival signal, including:

[0099] Receiving a train arrival collection signal sent by the first type detection device 111 or the second type detection device 112;

[0100] Determining whether the reliability of the detection device that issues the train arrival collection signal is high;

[0101] If yes, then setting the status signal of the detection device that sends the train arrival collection signal as a train arrival valid signal;

[0102] If not, the current train arrival collection signal is ignored.

[0103] The train arrival acquisition signal mentioned in this embodiment refers to the actual acquisition of the detection equipment. The first type of detection equipment 111 monitors that the wind pressure difference is greater than the preset value, and the second type of detection equipment 112 detects that the target position is blocked or the transmitted signal is reflected back; when the controller 12 receives the train arrival acquisition signal, it is necessary to judge the credibility of the detection equipment that sends the signal (the credibility is high or low, high means that the detection result of the detection equipment is credible, and low means that the detection result of the detection equipment is unreliable). If the credibility of the detection equipment is high, its signal state is set to the train arrival valid signal. If it is low, the train arrival acquisition signal sent by the detection equipment is ignored. It should be noted that the credibility needs to be adjusted all the time. After a train passes, if the signal detected by the detection equipment is abnormal, the controller 12 sets its credibility to low; if it is inspected and processed by the staff, its credibility can be set to high.

[0104] Through the solution provided in this embodiment, only the collection signals sent by the detection equipment with high credibility will be used, thereby improving the accuracy of train arrival detection.

[0105] According to the above embodiment, the first type of detection equipment is a piston wind pressure difference detection equipment, and the second type of detection equipment is a train arrival detection equipment; due to the difference in the detection principles of the first type of detection equipment 111 and the second type of detection equipment 112, the first type of detection equipment 111 is based on the wind pressure change in the tunnel, which is relatively more accurate, because it is difficult for non-train obstacles to produce a large wind pressure difference, while the second type of detection equipment 112 may issue a false alarm due to the obstruction of obstacles. This false alarm does not belong to equipment failure, but cannot be adopted. Whether the valid train arrival signal issued by it is adopted also requires different processing. Therefore, in another embodiment, the state signal of any one of the first type of detection equipment 111 or the second type of detection equipment 112 is monitored as a valid train arrival signal, and a train arrival warning information is issued, including:

[0106] If it is detected that the status signal of the first type detection device 111 is a valid train arrival signal, the train arrival warning information is immediately issued;

[0107] If the monitored state signal of the second-type detection device 112 is a valid signal of train arrival, determine whether the current state signal of the second-type detection device 112 is still a valid signal of train arrival after the preset confirmation time;

[0108] If so, the train arrival warning information is issued.

[0109] If it is detected that the status signal of the first type of detection device 111 is a valid signal for the arrival of a train, a train arrival warning message is immediately issued without waiting for confirmation; if it is a second type of detection device 112, it is determined whether the current status signal of the second type of detection device 112 is still a valid signal for the arrival of a train after the preset confirmation time; if so, a train arrival warning message is issued. If it is determined that the status signal of this detection device is still a valid signal for the arrival of a train after the preset confirmation time, it means that the train is continuously detected, and a train arrival warning message is issued. This embodiment further determines whether the detection device issues a valid signal for the arrival of a train to eliminate false alarms.

[0110] It should be noted that the preset confirmation time here is a custom setting and needs to be less than the shortest time a train may pass through, that is, within this time, the train will definitely not completely pass through the detection equipment. Specifically, the preset confirmation time is obtained by the ratio of the preset minimum train length to the preset maximum train speed. The preset minimum train length refers to the minimum length of the train allowed to pass through the railway line; the preset maximum train speed refers to the maximum speed allowed by the current railway line. Based on the ratio, the shortest time a train may theoretically pass can be obtained.

[0111] According to the above embodiment, the second device for verification can be a detection device at the same location or a detection device at a different location. In this case, corresponding low-speed judgment needs to be performed for different situations. In another embodiment, the judgment of whether the status signal of any one of the first-type detection devices 111 or the second-type detection device 112 other than the currently warned detection device is monitored as a valid train arrival signal within the preset verification time includes:

[0112] Obtain the first type of detection device 111 and the second type of detection device 112 which are closest to the detection device that has been warned and have high credibility for verification in the uplink direction, and the first type of detection device 111 and the second type of detection device 112 which are closest to the detection device that has been warned and have high credibility for verification in the downlink direction;

[0113] Determine whether the state signal of any one of the four detection devices used for verification changes to a valid train arrival signal within a preset first verification time;

[0114] If the status signal of any one of the four detection devices used for verification has not changed to a valid signal of train arrival, it is determined whether the status signal of another detection device in the train detection unit to which the detection device that has been warned currently belongs has changed to a valid signal of train arrival within the preset first verification time;

[0115] If the status signal of another detection device in the train detection unit to which the detection device that has been warned currently belongs changes to a valid train arrival signal, it is determined that the status signal of any one of the first-type detection devices or the second-type detection devices other than the detection device that has been warned currently is monitored as a valid train arrival signal within the preset verification time;

[0116] Correspondingly, judging whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices includes:

[0117] Whether the train is running at a low speed is determined according to the triggering time of the two detection devices in the current train detection unit.

[0118] In this embodiment, a first type detection device 111 and a second type detection device 112 with high credibility are found in the uplink and downlink directions respectively; a total of four detection devices are used for verification. It should be noted that, for the convenience of description, the direction from the entrance to the exit of the tunnel is regarded as the uplink direction, and the direction from the exit to the entrance is regarded as the downlink direction. Each train detection unit 11 is arranged in the tunnel at equal intervals, and increases in order from the entrance to the exit.

[0119] Determine whether the status signal of any one of the four detection devices used for verification changes to a valid signal of train arrival within the preset first verification time. The first verification time here is the longest time that the train may use to pass through the four detection devices, which needs to be set according to the actual environment. Specifically, the preset second verification time is obtained according to the following steps:

[0120] Obtain a second serial number difference between the detection device that has been warned currently and the detection device that is farthest from the detection device that has been warned currently among the four detection devices used for verification, and use the second serial number difference as the first variable;

[0121] Obtaining a first ratio of a distance between two adjacent train detection units 11 and a preset minimum train speed;

[0122] The preset first verification time is obtained according to the product of the first variable and the first ratio.

[0123] The longest possible time is calculated based on the distance between the farthest detection device and the detection device that has been warned; the first ratio is the longest time required to pass through a train detection unit 11 interval, multiplied by the first variable to be the theoretically longest time a train may take to pass through these four detection devices. The preset minimum train speed mentioned here is the lowest speed allowed by the current railway line. If it is lower than this speed, the train will be judged to have stopped urgently and the lighting system will be turned on. If the train is not detected again after the preset first verification time, it means that the first detection device has a false alarm.

[0124] If the status signals of the four detection devices have not changed into valid signals of train arrival, then it is determined whether the status signal of another detection device in the train detection unit 11 to which the first detection device belongs has changed into a valid signal of train arrival; that is, if the train is traveling at a slow speed and has not reached the next detection device with high credibility, but has been detected by another detection device at the same position, it can also be determined that the warning signal issued by the first detection device has been confirmed by the second detection device at the same position. In this case, the determination of whether the train is running at a low speed based on the distance and / or trigger time of the two warning detection devices includes: determining whether the train is running at a low speed based on the trigger time of the two detection devices in the current train detection unit. Undoubtedly, within the preset first verification time, only the detection device at the same position is triggered, and the train speed is lower than the preset minimum train speed, which can be directly determined as running at a low speed.

[0125] Further, if the state signal of any one of the four detection devices used for verification changes to a valid train arrival signal within the preset first verification time, it is determined that the state signal of any one of the first-type detection devices 111 or the second-type detection device 112 other than the currently warned detection device is monitored as a valid train arrival signal within the preset verification time;

[0126] Correspondingly, judging whether the train is running at a low speed according to the distance and / or triggering time of two warning detection devices includes:

[0127] Obtain the difference between the first numbers of two detection devices that have been warned;

[0128] Obtaining a first trigger time difference between two warning detection devices;

[0129] Obtaining a first distance according to the first number difference and the distance between the adjacent train detection unit 11;

[0130] Obtaining a first running speed according to a ratio of the first distance to the first trigger time;

[0131] Determining whether the first running speed is less than a preset minimum train speed;

[0132] If yes, it is judged to be running at low speed.

[0133] If the status signal of any one of the four detection devices used for verification changes to a valid train arrival signal within the preset first verification time, it is necessary to further determine whether the train is traveling at a low speed. In this embodiment, the train speed is determined based on the number difference and trigger time of the two detection devices. If it is lower than the preset minimum train speed, it is judged to be running at a low speed.

[0134] Furthermore, if the first running speed is greater than the preset minimum train speed, it means that the current train is running normally. However, in order to ensure the safety of the train running in the tunnel throughout the entire process, the train needs to be monitored throughout the entire process. In another embodiment, if it is determined that the first running speed is greater than the preset minimum train speed, it also includes:

[0135] Determine the running direction of the train based on two warning detection devices;

[0136] The second detection device that has been warned is used as a real-time detection device;

[0137] Determine whether the real-time detection device is the last detection device with high credibility in the running direction;

[0138] If it is not the last detection device with high credibility in the running direction, the first type detection device 111 and the second type detection device 112 which are closest to the real-time detection device in the running direction and have high credibility are obtained as target detection devices;

[0139] Obtaining the longest time required to reach the target detection device as the current preset continuous monitoring time;

[0140] Determine whether the status signal of any one of all the remaining detection devices with high credibility in the running direction changes to a valid signal of train arrival within the current preset continuous monitoring time;

[0141] If the status signals of all remaining detection devices with high credibility in the running direction have not changed to valid signals of train arrival, and the current theoretical running speed is lower than the preset minimum train speed, it is judged as low-speed running, and the lighting system is controlled to start;

[0142] If the state signal of any one of all the remaining detection devices with high credibility in the running direction changes to a valid signal of train arrival, the theoretical running speed of the train from the real-time detection device to the currently triggered detection device is calculated;

[0143] Determining whether the current theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed;

[0144] If the current theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed, the currently triggered detection device is used as the real-time detection device, and the process returns to the step of determining whether the real-time detection device is the last detection device with high credibility in the running direction;

[0145] If the current theoretical operating speed is lower than the preset maximum train speed and lower than the preset minimum train speed, it is judged as low-speed operation and the lighting system is controlled to start.

[0146] According to the above steps, it can be determined that the train has arrived, and the running direction of the train is determined according to the two warning detection devices. If the detection device used for verification is located in the upward direction of the warning detection device, the running direction of the train is the upward direction; if the detection device used for verification is located in the downward direction of the warning detection device, the running direction of the train is the downward direction. By confirming the running direction of the train, the running status of the train can be monitored.

[0147] In this embodiment, the detection device whose last status signal change is a valid signal of train arrival is used as the real-time detection device. According to the running direction, the first-category detection device 111 and the second-category detection device 112 that are closest and have high credibility are searched as the target detection devices. The purpose is to obtain the longest time required to reach the target detection device, which is used as the preset continuous monitoring time of the current cycle.

[0148] The current preset continuous monitoring time mentioned in this embodiment refers to the longest time that a train may use to pass through the target detection device in the current cycle judgment period. Specifically, the preset continuous monitoring time is obtained according to the following steps:

[0149] Obtaining a third serial number difference of a detection device that is farthest from the real-time detection device among the target detection devices, and using the third serial number difference as a second variable;

[0150] Obtaining a first ratio of a distance between two adjacent train detection units 11 and a preset minimum train speed;

[0151] The preset continuous monitoring time is obtained according to the product of the second variable and the first ratio.

[0152] This embodiment determines whether the status signal of any of all the remaining detection devices with high credibility in the running direction has changed to a valid signal of train arrival within the current preset continuous monitoring time. If the status signal of no detection device has changed to a valid signal of train arrival, it means that the train is running at a low speed, and the lighting system is controlled to start.

[0153] If within the current judgment cycle, the status signal of any detection device is monitored to change to a valid signal of train arrival, it is necessary to specifically determine whether the train is running at a low speed, and calculate the theoretical running speed of the train from the real-time detection device to the currently triggered detection device; that is, calculate the running speed of the train based on the trigger time of the real-time detection device and the trigger time of the currently most recently triggered detection device, and the distance between the real-time detection device and the currently most recently triggered detection device.

[0154] If the theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed, it means that the train is running normally from the real-time detection device to the target detection device. The target detection device is used as the real-time detection device for the next cycle judgment, and the process returns to the step of judging whether the real-time detection device is the last detection device with high credibility in the running direction.

[0155] If the train is not running normally, specifically, the theoretical running speed is lower than the preset minimum train speed, it is judged to be running at a low speed, and the lighting system 13 is controlled to illuminate. The explanation shows that the train is running at a low speed from the real-time detection device to the target detection device, and the lighting is turned on in time.

[0156] Furthermore, if the train is not running normally, if the current theoretical running speed is higher than the preset maximum train speed, it also includes:

[0157] The credibility of the target detection device is set to low, and the step of returning to the step of obtaining the first type of detection device 111 and the second type of detection device 112 which are closest to the real-time detection device in the running direction and have high credibility as the target detection device.

[0158] If the calculated theoretical running speed is higher than the preset maximum train speed, it means that the target detection device has given a false alarm, and its credibility is set to low. It is necessary to re-search the target detection device closest to the real-time detection device for judgment in the current cycle.

[0159] In order to make those skilled in the art better understand the present invention, a specific embodiment is provided. Figure 3 As shown:

[0160] S111: The status signal of the first type detection device 111 is detected to be a valid signal of train arrival; then the process goes to step S112;

[0161] S112: Immediately issue a train arrival warning message;

[0162] S113: the status signal of the monitored second type detection device 112 is a valid train arrival signal; proceed to step S114;

[0163] S114: Determine whether the current status signal of the second type detection device 112 is still a valid signal of train arrival after the preset confirmation time; if so, proceed to step S112;

[0164] S121: Acquire the first type of detection device 111 and the second type of detection device 112 for verification that are closest to the currently warned detection device in the uplink direction and have high credibility, and the first type of detection device 111 and the second type of detection device 112 for verification that are closest to the currently warned detection device in the downlink direction and have high credibility;

[0165] S122: Determine whether the status signal of any one of the four detection devices used for verification changes to a valid train arrival signal within the preset first verification time; if not, proceed to step S123; if yes, proceed to step S131;

[0166] S123: Determine whether the status signal of another detection device in the train detection unit 11 to which the detection device that has been warned currently belongs changes to a valid train arrival signal within the preset first verification time; if so, proceed to step S14;

[0167] S14: Low speed operation, control the lighting system 13 to start;

[0168] S131: Obtain the difference between the first serial numbers of two detection devices that have issued warnings;

[0169] S132: Obtaining a first trigger time difference between two warning detection devices;

[0170] S133: Obtaining a first distance according to the first number difference and the distance between the adjacent train detection unit 11;

[0171] S134: Obtaining a first running speed according to a ratio of the first distance to the first trigger time;

[0172] S135: Determine whether the first running speed is less than the preset minimum train speed; if so, S14 is determined to be low-speed running, if not, S150;

[0173] S150: determining the running direction of the train according to two detection devices that have been warned;

[0174] S151: Use the second detection device that has been warned as a real-time detection device;

[0175] S152: Determine whether the real-time detection device is the last detection device with high credibility in the running direction; if not, proceed to step S153;

[0176] S153: Acquire the first type detection device 111 and the second type detection device 112 which are closest to the real-time detection device in the running direction and have high credibility as target detection devices;

[0177] S154: Obtaining the longest time required to reach the target detection device as the current preset continuous monitoring time;

[0178] S155: Determine whether the status signal of any of the remaining detection devices with high credibility in the running direction changes to a valid signal of train arrival within the current preset continuous monitoring time; if so, proceed to step S156; if not, determine that the train is running at a low speed and proceed to S14;

[0179] S156: Calculate the theoretical running speed of the train from the real-time detection device to the currently triggered detection device;

[0180] S157: Determine whether the current theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed; if so, proceed to step S158; if not, proceed to step S1591 or S1592;

[0181] S158: taking the currently triggered detection device as the real-time detection device, and returning to step S152 to determine whether the real-time detection device is the last detection device with high credibility in the running direction;

[0182] S1591: If the current theoretical running speed is lower than the preset maximum train speed and lower than the preset minimum train speed, it is judged as low-speed operation and enters step S14.

[0183] S1592: The current theoretical operating speed is higher than the preset maximum train speed, and the credibility of the target detection device is set to low. Return to step S153 to obtain the first type of detection device 111 and the second type of detection device 112 which are closest to the real-time detection device in the running direction and have high credibility as the target detection device.

[0184] In the above embodiments, the train low-speed driving lighting control method is described in detail, and the present application also provides a corresponding embodiment of the train low-speed driving lighting control device. It should be noted that the present application describes the embodiments of the device part from two perspectives, one is based on the functional module perspective, and the other is based on the hardware perspective.

[0185] From the perspective of functional modules, Figure 4 A structural diagram of a train low-speed driving lighting control device provided in an embodiment of the present application, such as Figure 4As shown, a train low-speed running lighting control device is applied to an emergency lighting system 13, comprising: a plurality of train detection units 11, a controller 12, and a lighting system 13; the train detection units 11 are respectively arranged in a train tunnel at equal intervals; the train detection unit comprises: a first type of detection equipment 111 and a second type of detection equipment 112; the first type of detection equipment 111 and the second type of detection equipment 112 are respectively connected to the controller 12; the controller 12 is connected to the lighting system 13;

[0186] The device includes:

[0187] The monitoring module 21 is used to detect that the status signal of any one of the first-type detection devices 111 or the second-type detection devices 112 is a valid signal of train arrival, and issue a train arrival warning message;

[0188] The judgment module 22 is used to judge whether the status signal of any first-type detection device 111 or second-type detection device 112 other than the currently warned detection device is detected as a valid train arrival signal within a preset verification time; if so, the low-speed judgment module 23 is triggered;

[0189] The low-speed judgment module 23 is used to confirm the train arrival warning information and judge whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices;

[0190] The lighting module 24 is used to control the lighting system 13 to start if the vehicle is running at a low speed.

[0191] Through the train low-speed lighting control device provided by this embodiment, the monitoring module 21 detects that the status signal of any first-type detection device 111 or second-type detection device 112 is a valid train arrival signal, and issues a train arrival warning message; the judgment module 22 determines whether the status signal of any first-type detection device 111 or second-type detection device 112 other than the currently warned detection device is detected as a valid train arrival signal within the preset verification time; if so, the low-speed judgment module 23 is triggered to confirm the train arrival warning information, and judge whether the train is running at a low speed according to the distance and / or trigger time of the two warned detection devices; if the lighting module 24 is running at a low speed, the lighting system 13 is controlled to illuminate. After the first detection device detects the train, it only issues a train arrival warning message, which needs to be confirmed by the second detection device. After confirming that the train has arrived, it is determined whether the train is running at a low speed. If the first detection device is a false alarm, it is highly likely that the signal of the second detection device will not be received. The failure of a single detection device does not cause system malfunction, thereby improving the accuracy of the system.

[0192] A collection unit, used for receiving a train arrival collection signal sent by the first type detection device 111 or the second type detection device 112;

[0193] A credibility judgment unit, used to judge whether the credibility of the detection device that sends the train arrival collection signal is high; if so, trigger the valid output unit; if not, trigger the invalidation unit;

[0194] An effective output unit, used to set the state signal of the detection device that sends the train arrival collection signal as a train arrival effective signal;

[0195] The trigger cancellation unit is used to ignore the current train arrival collection signal.

[0196] An immediate trigger unit, for immediately issuing the train arrival warning information if it is detected that the status signal of the first type of detection equipment 111 is a valid train arrival signal;

[0197] A delayed trigger judgment unit, for judging whether the current status signal of the second type of detection device 112 is still a valid signal of train arrival after a preset confirmation time if the status signal of the second type of detection device 112 monitored is a valid signal of train arrival;

[0198] If so, the immediate trigger unit is triggered to issue the train arrival warning information.

[0199] A search unit, used for obtaining the first type of detection device 111 and the second type of detection device 112 which are closest to the detection device currently warned in the uplink direction and have high credibility for verification, and the first type of detection device 111 and the second type of detection device 112 which are closest to the detection device currently warned in the downlink direction and have high credibility for verification;

[0200] A first judgment unit, used to judge whether the state signal of any one of the four detection devices used for verification changes to a valid signal of train arrival within a preset first verification time;

[0201] If not, the second judgment unit is triggered to judge whether the state signal of another detection device in the train detection unit 11 to which the detection device that has been warned currently belongs changes to a valid signal of train arrival within the preset first verification time;

[0202] If yes, the lighting module is triggered.

[0203] A first acquisition unit, used for acquiring a first serial number difference between two detection devices that have issued an early warning;

[0204] A second acquisition unit is used to acquire a first trigger time difference between two detection devices that have been warned;

[0205] A first calculation unit, configured to obtain a first distance according to the first number difference and a distance between the adjacent train detection units 11;

[0206] a second calculation unit, configured to obtain a first running speed according to a ratio of the first distance to the first trigger time;

[0207] A speed determination unit, used for determining whether the first running speed is less than a preset minimum train speed;

[0208] If so, it is judged as low-speed operation and the lighting module is triggered.

[0209] A running direction determination unit, used for determining the running direction of the train according to two detection devices that have been warned;

[0210] A latest detection device determination unit, used for taking the second detection device that has been warned as a real-time detection device;

[0211] An exit determination unit, used to determine whether the real-time detection device is the last detection device with high credibility in the running direction;

[0212] If not, triggering a continuous detection device determination unit to obtain the first type of detection device 111 and the second type of detection device 112 which are closest to the real-time detection device in the running direction and have high credibility as target detection devices;

[0213] A cycle time determination unit, used to obtain the longest time required to reach the target detection device as the current preset continuous monitoring time;

[0214] A cyclic judgment unit, used to judge whether the status signal of any one of all the remaining detection devices with high credibility in the running direction changes to a valid signal of train arrival within the current preset continuous monitoring time;

[0215] If the status signals of all remaining detection devices with high credibility in the running direction do not change to valid signals of train arrival, it is judged as low-speed running and the lighting module is triggered.

[0216] If yes, then the speed calculation unit is triggered to calculate the theoretical running speed of the train from the real-time detection device to the currently triggered detection device.

[0217] A driving judgment unit, used to judge whether the current theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed;

[0218] If yes, the currently triggered detection device is used as the real-time detection device to trigger the exit determination unit;

[0219] If not, the current theoretical running speed is lower than the preset minimum train speed, and the lighting module is triggered.

[0220] If the current theoretical operating speed is higher than the preset maximum train speed, the abnormal unit is triggered to set the credibility of the target detection device to low, and the continuous detection device determination unit is triggered.

[0221] Since the embodiments of the apparatus part correspond to the embodiments of the method part, please refer to the description of the embodiments of the method part for the embodiments of the apparatus part, which will not be repeated here.

[0222] Figure 5 A structural diagram of another train low-speed running lighting control device provided in an embodiment of the present application, such as Figure 5 As shown, the train low-speed running lighting control device includes: a memory 30 for storing a computer program;

[0223] The processor 31 is used to implement the steps of the method for obtaining user operation habit information in the above embodiment (train low-speed driving lighting control method) when executing the computer program.

[0224] The train low-speed running lighting control device provided in this embodiment may include but is not limited to a smart phone, a tablet computer, a laptop computer or a desktop computer.

[0225] Among them, the processor 31 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 31 can be implemented in at least one hardware form of a digital signal processor (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The processor 31 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 31 may be integrated with a graphics processing unit (GPU), and the GPU is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 31 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0226] The memory 30 may include one or more computer-readable storage media, which may be non-transitory. The memory 30 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In this embodiment, the memory 30 is at least used to store the following computer program 301, wherein, after the computer program is loaded and executed by the processor 31, it can implement the relevant steps of the train low-speed driving lighting control method disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 30 may also include an operating system 302 and data 303, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 302 may include Windows, Unix, Linux, etc. Data 303 may include but is not limited to data involved in implementing the train low-speed driving lighting control method, etc.

[0227] In some embodiments, the train low-speed running lighting control device may also include a display screen 32 , an input and output interface 33 , a communication interface 34 , a power supply 35 and a communication bus 36 .

[0228] Those skilled in the art will understand that Figure 5 The structure shown in the figure does not constitute a limitation on the train low-speed running lighting control device, and may include more or fewer components than those shown in the figure.

[0229] The train low-speed running lighting control device provided in the embodiment of the present application includes a memory and a processor. When the processor executes the program stored in the memory, it can implement the following method: the train low-speed running lighting control method is applied to the emergency lighting system 13, including: a plurality of train detection units 11, a controller 12, and a lighting system 13; the train detection units 11 are respectively arranged in the train tunnel at equal intervals; the train detection unit includes: a first type of detection device 111 and a second type of detection device 112; the first type of detection device 111 and the second type of detection device 112 are respectively connected to the controller 12; the controller 12 is connected to the lighting system 13; The method includes: monitoring the status signal of any one of the first-class detection equipment 111 or the second-class detection equipment 112 as a valid signal of train arrival, and issuing a train arrival warning message; judging whether the status signal of any one of the first-class detection equipment 111 or the second-class detection equipment 112 other than the currently warned detection equipment is monitored as a valid signal of train arrival within the preset verification time; if so, confirming the train arrival warning message, judging whether the train is running at a low speed according to the distance and / or trigger time of the two warned detection equipment; if it is running at a low speed, controlling the lighting system 13 to illuminate. After the first detection equipment detects the train, it only issues a train arrival warning message, which needs to be confirmed by the second detection equipment. After confirming the arrival of the train, it is judged whether the train is running at a low speed. If the first detection equipment is a false alarm, it is highly likely that the signal of the second detection equipment will not be received. The failure of a single detection equipment will not cause the system to malfunction, thereby improving the accuracy of the system.

[0230] Finally, the present application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps described in the embodiment of the train low-speed driving lighting control method are implemented.

[0231] It is understandable that if the method in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0232] The computer-readable storage medium provided in this embodiment stores a computer program. When a processor executes the program, the following method can be implemented: a train low-speed driving lighting control method, applied to an emergency lighting system 13, comprising: a plurality of train detection units 11, a controller 12, and a lighting system 13; the train detection units 11 are respectively arranged in a train tunnel at equal intervals; the train detection unit comprises: a first type of detection device 111 and a second type of detection device 112; the first type of detection device 111 and the second type of detection device 112 are respectively connected to the controller 12; the controller 12 and the lighting system 13 connection; the method includes: monitoring that the status signal of any one of the first-type detection devices 111 or the second-type detection devices 112 is a valid signal of train arrival, and issuing a train arrival warning message; judging whether the status signal of any one of the first-type detection devices 111 or the second-type detection devices 112 other than the currently warned detection device is monitored as a valid signal of train arrival within the preset verification time; if so, confirming the train arrival warning message, judging whether the train is running at a low speed according to the distance and / or trigger time of the two warned detection devices; if it is running at a low speed, controlling the lighting system 13 to illuminate. After the first detection device detects the train, it only issues a train arrival warning message, which needs to be confirmed by the second detection device. After confirming the arrival of the train, it is judged whether the train is running at a low speed. If the first detection device is a false alarm, it is highly likely that the signal of the second detection device will not be received. The failure of a single detection device will not cause system malfunction, thereby improving the accuracy of the system.

[0233] The above is a detailed introduction to the train low-speed lighting control method, device and medium provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

[0234] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A method for controlling lighting when a train is running at a low speed, characterized in that: Applied to emergency lighting system, comprising: a plurality of train detection units, a controller, and a lighting system; the train detection units are respectively arranged in a train tunnel at equal intervals; the train detection unit comprises: a first type of detection equipment and a second type of detection equipment; the first type of detection equipment and the second type of detection equipment are respectively connected to the controller; the controller is connected to the lighting system; The method comprises: When the status signal of any one of the first-type detection equipment or the second-type detection equipment is detected to be a valid signal of train arrival, a train arrival warning message is issued; Determine whether a status signal of any one of the first-type detection devices or the second-type detection devices other than the detection device that has been warned is detected as a valid signal of train arrival within a preset verification time; If yes, confirm the train arrival warning information, and determine whether the train is running at a low speed according to the distance and / or trigger time of the two warning detection devices; If it is running at a low speed, the lighting system is controlled to start; The monitoring of the status signal of any one of the first-type detection equipment or the second-type detection equipment as a valid train arrival signal includes: Receiving a train arrival collection signal sent by the first type of detection equipment or the second type of detection equipment; Determining whether the reliability of the detection device that issues the train arrival collection signal is high; If yes, then setting the status signal of the detection device that sends the train arrival collection signal as a train arrival valid signal; If not, the current train arrival acquisition signal is ignored; The determining whether the status signal of any one of the first-type detection devices or the second-type detection devices other than the detection device that has been currently warned is monitored as a valid train arrival signal within the preset verification time includes: Obtain the first and second detection devices for verification that are closest to the detection device that has been warned and have high credibility in the uplink direction, and the first and second detection devices for verification that are closest to the detection device that has been warned and have high credibility in the downlink direction; Determine whether the state signal of any one of the four detection devices used for verification changes to a valid train arrival signal within a preset first verification time; If the status signal of any one of the four detection devices used for verification has not changed to a valid signal of train arrival, it is determined whether the status signal of another detection device in the train detection unit to which the detection device that has been warned currently belongs has changed to a valid signal of train arrival within the preset first verification time; If the status signal of another detection device in the train detection unit to which the detection device that has been warned currently belongs changes to a valid train arrival signal, it is determined that the status signal of any one of the first-type detection devices or the second-type detection devices other than the detection device that has been warned currently is monitored as a valid train arrival signal within the preset verification time; Correspondingly, judging whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices includes: Whether the train is running at a low speed is determined according to the triggering time of the two detection devices in the current train detection unit.

2. The train low-speed running lighting control method according to claim 1, characterized in that: The first type of detection equipment is a piston wind pressure difference detection equipment, and the second type of detection equipment is a train arrival detection equipment; the state signal of any one of the first type of detection equipment or the second type of detection equipment is monitored as a valid train arrival signal, and a train arrival warning information is issued, including: If it is detected that the status signal of the first type of detection equipment is a valid signal of train arrival, the train arrival warning information is immediately issued; If the monitored state signal of the second type of detection equipment is a valid signal of train arrival, determining whether the current state signal of the second type of detection equipment is still a valid signal of train arrival after a preset confirmation time; If so, the train arrival warning information is issued.

3. The train low-speed running lighting control method according to claim 1, characterized in that: If the state signal of any one of the four detection devices used for verification changes to a valid signal of train arrival within the preset first verification time, it is determined that the state signal of any one of the first type of detection devices or the second type of detection devices other than the detection device that has been warned is a valid signal of train arrival within the preset verification time; Correspondingly, judging whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices includes: Obtain the difference between the first numbers of two detection devices that have been warned; Obtaining a first trigger time difference between two warning detection devices; Obtaining a first distance according to the first number difference and the distance between the adjacent train detection units; Obtaining a first running speed according to a ratio of the first distance to the first trigger time; Determining whether the first running speed is less than a preset minimum train speed; If yes, it is judged as low speed operation.

4. The train low-speed running lighting control method according to claim 3 is characterized in that: If it is determined that the first running speed is greater than a preset minimum train speed, the method further includes: Determine the running direction of the train based on two warning detection devices; The second detection device that has been warned is used as a real-time detection device; Determine whether the real-time detection device is the last detection device with high credibility in the running direction; If it is not the last detection device with high credibility in the running direction, obtaining the first category detection device and the second category detection device which are closest to the real-time detection device in the running direction and have high credibility as the target detection device; Obtaining the longest time required to reach the target detection device as the current preset continuous monitoring time; Determine whether the status signal of any one of all the remaining detection devices with high credibility in the running direction changes to a valid signal of train arrival within the current preset continuous monitoring time; If the status signals of all remaining detection devices with high credibility in the running direction have not changed to valid signals of train arrival, and the current theoretical running speed is lower than the preset minimum train speed, it is judged as low-speed running, and the lighting system is controlled to start; If the state signal of any one of all the remaining detection devices with high credibility in the running direction changes to a valid signal of train arrival, the theoretical running speed of the train from the real-time detection device to the currently triggered detection device is calculated; Determining whether the current theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed; If the current theoretical running speed is lower than the preset maximum train speed and higher than the preset minimum train speed, the currently triggered detection device is used as the real-time detection device, and the process returns to the step of determining whether the real-time detection device is the last detection device with high credibility in the running direction; If the current theoretical operating speed is lower than the preset maximum train speed and lower than the preset minimum train speed, it is judged as low-speed operation and the lighting system is controlled to start.

5. The train low-speed running lighting control method according to claim 4, characterized in that: If the current theoretical running speed is higher than the preset maximum train speed, the method further includes: The credibility of the target detection device is set to low, and the step of returning to the step of obtaining the first and second category detection devices which are closest to the real-time detection device in the running direction and have high credibility as the target detection devices.

6. The train low-speed running lighting control method according to claim 1, characterized in that: The preset first check time is obtained according to the following steps: Obtain a second serial number difference between the detection device that has been warned currently and the detection device that is farthest from the detection device that has been warned currently among the four detection devices used for verification, and use the second serial number difference as the first variable; Obtaining a first ratio of a distance between two adjacent train detection units and a preset minimum train speed; The preset first verification time is obtained according to the product of the first variable and the first ratio.

7. The train low-speed running lighting control method according to claim 2, characterized in that: The preset confirmation time is obtained by the ratio of the preset minimum train length to the preset maximum train speed.

8. The train low-speed running lighting control method according to claim 4, characterized in that: The obtaining of the longest time required to reach the target detection device as the current preset continuous monitoring time includes: Obtaining a third serial number difference of a detection device that is farthest from the real-time detection device among the target detection devices, and using the third serial number difference as a second variable; Obtaining a first ratio of a distance between two adjacent train detection units and a preset minimum train speed; The preset continuous monitoring time is obtained according to the product of the second variable and the first ratio.

9. A train low-speed driving lighting control device, characterized in that: Applied to emergency lighting system, comprising: a plurality of train detection units, a controller, and a lighting system; the train detection units are respectively arranged in a train tunnel at equal intervals; the train detection unit comprises: a first type of detection equipment and a second type of detection equipment; the first type of detection equipment and the second type of detection equipment are respectively connected to the controller; the controller is connected to the lighting system; The device comprises: A monitoring module, configured to detect that a status signal of any one of the first-type detection devices or the second-type detection devices is a valid signal of train arrival, and issue a train arrival warning message; A judgment module, used to judge whether the status signal of any one of the first-type detection devices or the second-type detection devices other than the currently warned detection device is detected as a valid signal of train arrival within a preset verification time; if so, trigger the low-speed judgment module; The low-speed judgment module is used to confirm the train arrival warning information and judge whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices; A lighting module, used to control the lighting system to start if the vehicle is running at a low speed; The monitoring of the status signal of any one of the first-type detection equipment or the second-type detection equipment as a valid train arrival signal includes: Receiving a train arrival collection signal sent by the first type of detection equipment or the second type of detection equipment; Determining whether the reliability of the detection device that issues the train arrival collection signal is high; If yes, then setting the status signal of the detection device that sends the train arrival collection signal as a train arrival valid signal; If not, the current train arrival acquisition signal is ignored; The determining whether the status signal of any one of the first-type detection devices or the second-type detection devices other than the detection device that has been currently warned is monitored as a valid train arrival signal within the preset verification time includes: Obtain the first and second detection devices for verification that are closest to the detection device that has been warned and have high credibility in the uplink direction, and the first and second detection devices for verification that are closest to the detection device that has been warned and have high credibility in the downlink direction; Determine whether the state signal of any one of the four detection devices used for verification changes to a valid train arrival signal within a preset first verification time; If the status signal of any one of the four detection devices used for verification has not changed to a valid signal of train arrival, it is determined whether the status signal of another detection device in the train detection unit to which the detection device that has been warned currently belongs has changed to a valid signal of train arrival within the preset first verification time; If the status signal of another detection device in the train detection unit to which the detection device that has been warned currently belongs changes to a valid train arrival signal, it is determined that the status signal of any one of the first-type detection devices or the second-type detection devices other than the detection device that has been warned currently is monitored as a valid train arrival signal within the preset verification time; Correspondingly, judging whether the train is running at a low speed according to the distance and / or trigger time of two warning detection devices includes: Whether the train is running at a low speed is determined according to the triggering time of the two detection devices in the current train detection unit.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the train low-speed running lighting control method as described in any one of claims 1 to 8 are implemented.

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