Railway tunnel lighting automatic control system and method

Abstract

The embodiment of the present invention discloses an automatic control system and method for railway tunnel lighting. The system includes: an occlusion detector, which sends a first occlusion alarm signal to a train stop monitoring module according to the occlusion state of the occlusion detector by the train in the railway tunnel; the train stop monitoring module determines whether the train in the railway tunnel is running normally, and sends the second occlusion alarm signal generated when it is not running normally to the tunnel slave central control module; the tunnel slave central control module receives the second occlusion alarm signal, and sends a third occlusion alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module; the tunnel master central control module determines that a train failure has occurred in the railway tunnel and controls the lighting in the railway tunnel to turn on according to the continuity of the third alarm signal. By adopting this technical solution, the running status of the train is intelligently monitored and the tunnel lighting is automatically controlled according to the monitoring results.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of monitoring electromechanical equipment for disaster prevention and rescue in railway tunnels, and in particular to an automatic control system and method for railway tunnel lighting. Background Art

[0002] Long-distance railway tunnels must provide tunnel lighting, fans and other disaster prevention, evacuation and rescue systems as well as tunnel lighting and disaster prevention remote monitoring systems (Building Automation System, Tunnel BAS system), which mainly include monitoring of tunnel lighting and tunnel fans. Tunnel BAS systems generally include local and remote monitoring methods. Both local control and remote control are manual control and will be affected by the staff's proficiency in operating the tunnel BAS system equipment and the on-duty personnel's concentration at work.

[0003] When an emergency occurs in a tunnel, if the tunnel evacuation lighting cannot be operated in time, it will inevitably affect the timeliness of the overall evacuation and rescue. In particular, if the lighting system in the tunnel cannot be turned on in time, the long tunnel will be as dark as the night, which will seriously affect the rescue and evacuation work and cause irreparable loss of life and property.

[0004] Therefore, how to automatically control the start-up of lighting in railway tunnels is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The embodiment of the present invention provides a railway tunnel lighting automatic control system and method, which can automatically start the emergency lighting equipment of the evacuation passage in the tunnel after the train in the tunnel stops urgently due to fire or other accidents, so as to facilitate emergency evacuation and rescue.

[0006] In a first aspect, an embodiment of the present invention provides a railway tunnel lighting automatic control system, comprising:

[0007] The obstruction detector is configured to send a first obstruction alarm signal to a train stop monitoring module according to an obstruction state of the obstruction detector by a train in a railway tunnel; wherein the obstruction state includes an obstruction caused by a train stopping or passing;

[0008] The train stop monitoring module is configured to determine whether the train in the railway tunnel is running normally, and send a second blocking alarm signal generated when the train is running abnormally to the tunnel central control module; wherein the second blocking alarm signal includes a local address code of the train stop monitoring module;

[0009] The tunnel slave central control module is configured to receive the second obstruction alarm signal and send a third obstruction alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module;

[0010] The tunnel main central control module is configured to determine that a train failure has occurred in the railway tunnel and control the lighting in the railway tunnel to turn on based on the continuity of the third alarm signal.

[0011] In a second aspect, an embodiment of the present invention further provides a railway tunnel lighting automatic control method, comprising:

[0012] According to the blocking state of the blocking detector by the train in the railway tunnel, a first blocking alarm signal is sent to the train stop monitoring module; wherein the blocking state includes the blocking caused by the train stopping or passing;

[0013] Determine whether the train in the railway tunnel is running normally, and send a second blocking alarm signal generated when the train is running abnormally to the tunnel central control module; wherein the second blocking alarm signal includes a local address code of the train stop monitoring module;

[0014] receiving the second blocking alarm signal, and sending a third blocking alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module;

[0015] According to the continuity of the third alarm signal, it is determined that a train failure occurs in the railway tunnel and the lighting in the railway tunnel is controlled to be turned on.

[0016] An embodiment of the present invention provides an automatic control system for railway tunnel lighting, the system comprising: an obstruction detector, a train stop monitoring module, a tunnel slave central control module and a tunnel master central control module; wherein: the obstruction detector is configured to send a first obstruction alarm signal to the train stop monitoring module according to the obstruction state of the obstruction detector by the train in the railway tunnel; wherein the obstruction state includes obstruction caused by the train stopping or passing; the train stop monitoring module is configured to determine whether the train in the railway tunnel is running normally, and send a second obstruction alarm signal generated during abnormal running to the tunnel slave central control module; wherein the second obstruction alarm signal includes the local address code of the train stop monitoring module; the tunnel slave central control module is configured to receive the second obstruction alarm signal, and send a third obstruction alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module; the tunnel master central control module is configured to determine that a train failure occurs in the railway tunnel and control the lighting in the railway tunnel to be turned on according to the continuity of the third alarm signal. By adopting the technical solution of the embodiment of the present invention, occlusion detectors for detecting train occlusion are deployed in the railway tunnel, and an intelligent algorithm is used to effectively judge the slowing and stopping behavior of the train in the tunnel, and the opening of tunnel lighting and other equipment is automatically controlled. This can not only improve the timeliness of the lighting required for evacuation and rescue in the tunnel after the train in the tunnel stops urgently due to fire or other accidents, but also avoid or reduce personal and property losses caused by delayed evacuation and rescue due to untimely manual control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a railway tunnel lighting automatic control system provided by Embodiment 1 of the present invention;

[0019] Figure 2A This is a schematic diagram of the structure of a railway tunnel lighting automatic control system provided by Embodiment 2 of the present invention;

[0020] Figure 2B It is a schematic diagram of a flow chart of train stop monitoring and automatic opening of tunnel lighting provided by an embodiment of the present invention;

[0021] Figure 3A A schematic diagram of the structure of a railway tunnel lighting automatic control system provided by Embodiment 3 of the present invention;

[0022] Figure 3B It is a schematic diagram of a train departure monitoring and tunnel lighting automatic shutdown process provided by an embodiment of the present invention;

[0023] Figure 4 The present invention provides a flow chart of a railway tunnel lighting automatic control method. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the operations (or steps) as sequential processes, many of the operations (or steps) therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0026] Long-distance railway tunnels must provide tunnel lighting, fans and other disaster prevention, rescue and evacuation systems as well as tunnel lighting and disaster prevention remote monitoring systems (Building Automation System, tunnel BAS system), which mainly include monitoring of tunnel lighting and tunnel fans. The tunnel BAS system generally includes local and remote monitoring methods.

[0027] Local control is achieved through the entrance and exit dual control unit box installed at the tunnel entrance with the function of turning on or off the tunnel lighting with one button, and the manual control unit box (or manual button box, or emergency start box) with one button to turn on the tunnel lighting arranged at a certain distance on both sides of the tunnel; remote control is achieved by using the tunnel BAS monitoring terminal located in the railway bureau monitoring center or station control room to connect to the local tunnel lighting control system through the railway dedicated communication network to realize the remote opening and closing of the tunnel lighting.

[0028] The above two control methods, whether local control or remote control, are manual control and will be affected by the staff's proficiency in operating the tunnel BAS equipment and the concentration of the on-duty personnel at work. Generally speaking, a person's concentration has a certain time limit. It is difficult to maintain continuous attention to a single job day after day and every moment, and it is difficult to ensure that they will not leave their posts. When an emergency occurs in the tunnel, if the tunnel on-site evacuation lighting and the start-up of the rescue fan cannot be operated in time, it will inevitably affect the timeliness of the overall evacuation and rescue. In particular, if the lighting system in the tunnel cannot be turned on in time, the long tunnel will be as dark as the night, which will seriously affect the rescue and evacuation work and cause irreparable loss of life and property. Therefore, the embodiment of the present invention provides a railway tunnel lighting automatic control system and method, which can automatically start the tunnel lighting when an emergency such as a fire causes the train to stop in the tunnel, and timely assist the tunnel emergency rescue and evacuation work to reduce accident losses.

[0029] Embodiment 1

[0030] Figure 1 Schematic diagram of a railway tunnel lighting automatic control system provided by Embodiment 1 of the present invention. This embodiment is applicable to the case of automatic control of railway tunnel lighting, such as Figure 1 As shown, the railway tunnel lighting automatic control system provided in the embodiment of the present invention may include: an obstruction detector 110, a train stop monitoring module 120, a tunnel slave central control module 130 and a tunnel master central control module 140; wherein:

[0031] The obstruction detector 110 is configured to send a first obstruction alarm signal to a train stop monitoring module according to the obstruction state of the obstruction detector by a train in a railway tunnel; wherein the obstruction state includes obstruction caused by a train stopping or passing.

[0032] Among them, the obstruction detector may refer to a detector that sends out an alarm signal when it detects that a train is slowing down or stopping in a tunnel due to a fault or emergency, which causes the obstruction detector to be blocked. The obstruction detector includes but is not limited to photoelectric, microwave or ultrasonic sensors, which are sensors that can detect obstructions caused by objects within a certain distance and return corresponding alarm signals due to obstruction; the sensor may be a transmitting-receiving type with transmission and reception distributed on the opposite side, or a reflecting type with transmission and reception on one side; the photoelectric sensor may use various types such as visible light, infrared light, laser, etc.; if the light source of the photoelectric sensor uses visible light, it is necessary to avoid interference with the railway signal lights of the same color such as red and green.

[0033] The installation height of the occlusion detector should match the height of the train passing through the railway tunnel, for example, about 30-80cm lower than the roof height. Taking the common Fuxing train CRH400AF as an example, the height of the train is 4.05m, and the installation height of the occlusion detector on the tunnel wall is approximately 2.5-3.5m from the track surface, which is higher than the height of ordinary people walking on the track, and can reduce the accidental turning on of lights caused by people walking in the tunnel.

[0034] By installing multiple groups of occlusion detectors at fixed intervals and using intelligent filtering algorithms, the length of the occluding objects can be calculated to filter out various objects shorter than the train. The length of an 8-carriage EMU train is generally greater than 200m, and the length of a 16-carriage EMU train is generally greater than 400m. Multiple groups of occlusion detectors can be appropriately set in one power supply arm. Through continuous combined detection of multiple groups of occlusion detectors and combined with intelligent filtering algorithms, other types within 200m can be filtered out, including but not limited to parking alarms triggered by maintenance and inspection locomotives.

[0035] The intelligent filtering algorithm should also be able to filter trains that are normally traveling through tunnels. By calculating the time it takes for a 200m or 400m passenger-dedicated line or high-speed train to pass through a single occlusion detector at normal speed, the delay time threshold for the occlusion alarm of the occlusion detector can be set. When an occlusion higher than the delay threshold occurs, an alarm signal is uploaded to filter out alarms triggered by trains that are normally traveling through tunnels at speeds greater than the set speed threshold (e.g. 60km / h).

[0036] The train stop monitoring module 120 is configured to determine whether the train in the railway tunnel is running normally, and send the second obstruction alarm signal generated during abnormal running to the tunnel central control module; wherein the second obstruction alarm signal includes the local address code of the train stop monitoring module.

[0037] Among them, the train stop monitoring module may refer to receiving the first obstruction alarm information and starting the obstruction timer to determine whether the train in the railway tunnel is running normally. When the timing time of the obstruction timer is greater than the preset obstruction delay threshold, it is determined that the train in the railway tunnel is not running normally, and the second obstruction alarm signal including the local address code of the train stop monitoring module is sent to the tunnel central control module.

[0038] A train stop monitoring module is set up in the tunnel. The train stop monitoring module is arranged in the tunnel at a fixed interval, which can be 25m, 50m and 100m, etc. The arrangement density depends on the accuracy requirements for the train stop positioning and the budget. The train stop monitoring module is installed on the tunnel wall of the tunnel main line. The train stop monitoring module is connected to the tunnel slave central control module through a dedicated control bus laid on the tunnel wall, communicates with the tunnel slave central control module and is powered by the tunnel slave central control module. An occlusion detector for monitoring train stops is installed at a suitable height above the train stop monitoring module and is connected through a real loop line.

[0039] The dedicated control bus can be a two-core bus that integrates communication and power supply in a fire alarm system or a remote meter reading system, or it can be an AC power line carrier line or a DC power line carrier line that can provide AC or DC power supply to multiple master and slave devices on a pair of cables and provide carrier communication functions at the same time, which will not be described in detail later.

[0040] The address codes of the train stop monitoring modules in a tunnel are set in the order of their locations. A train stop monitoring module address code represents a specific tunnel location, so that the host computer at the monitoring center can determine the train's parking position based on the address code of the alarm train stop monitoring module, thereby facilitating rescue command. At the same time, the address code is also used in the intelligent algorithm for continuous occlusion judgment in the tunnel main central control module. According to the number of continuous occlusion addresses, it is determined whether the target train is slowing down or stopping in the tunnel, thereby turning on the tunnel lighting. The occasional occlusion of individual occlusion detectors by simple targets such as maintenance vehicles or other personnel and objects that are shorter than the target train will be filtered out by the continuous occlusion intelligent algorithm, and will not trigger the action of automatically starting the tunnel lighting.

[0041] The tunnel slave central control module 130 is configured to receive the second obstruction alarm signal, and send a third obstruction alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module.

[0042] The tunnel slave central control module may receive the second obstruction alarm signal and send a third obstruction alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module.

[0043] A tunnel slave central control module is set up in a railway tunnel. Taking the power supply arm in the tunnel as a unit, each power supply arm is provided with a tunnel slave central control module. The tunnel slave central control module is installed in the power cavern in the tunnel. The tunnel slave central control module is connected to the lighting distribution and control box that provides power and on-off control for the tunnel lighting of the power supply arm through a real loop line, so as to realize the start and stop control of the lighting fixtures of the power supply arm; a large and long tunnel is generally provided with multiple power supply arms, each power supply arm is provided with a tunnel slave central control module, and multiple tunnel slave central control modules are interconnected and communicated through optical fiber; each tunnel is also provided with a tunnel master central control module, which is interconnected with each tunnel slave central control module through an optical fiber ring network, and the tunnel master central control module is responsible for completing the overall coordination of the lighting control in the entire tunnel. Among them, the power supply arm is a preset power supply range for the lighting fixtures in the tunnel that is responsible for powering the lighting fixtures in the tunnel by a single set of tunnel lighting power supply, for example, a single set of tunnel lighting power supply is responsible for powering the equipment within a range of 2-3km in the tunnel.

[0044] The tunnel main central control module 140 is configured to determine that a train failure occurs in the railway tunnel and control the lighting in the railway tunnel to turn on according to the continuity of the third alarm signal.

[0045] Among them, the tunnel main central control module may be a module that receives the third alarm signal and starts a continuous occlusion counter to detect the continuity of the third alarm signal. If the value of the continuous occlusion counter is greater than a preset continuous occlusion number threshold, the tunnel main central control module determines that a train failure has occurred and initiates a lighting start instruction to the central control modules of each tunnel in the tunnel.

[0046] In an optional scheme of an embodiment of the present invention, the system also includes: synchronous control of the rescue channel protection door used for tunnel evacuation, that is, while controlling the lighting to turn on, the rescue channel protection door is opened to provide a smooth evacuation channel for the crowd to be evacuated and rescued after the train stops, thereby improving the evacuation efficiency and reducing the damage caused by the accident.

[0047] In an optional scheme of an embodiment of the present invention, the system also includes: synchronous control of the fan equipment used for tunnel evacuation and rescue, that is, while controlling the lighting to turn on, turning on the tunnel fan to provide a ventilation environment for the people evacuated and rescued after the train stops. This is particularly important when an accident train has a fire risk and stops for evacuation, which can reduce casualties caused by harmful gases such as smoke and carbon monoxide.

[0048] An embodiment of the present invention provides an automatic control system for railway tunnel lighting, the system comprising: an obstruction detector, a train stop monitoring module, a tunnel slave central control module and a tunnel master central control module; wherein: the obstruction detector is configured to send a first obstruction alarm signal to the train stop monitoring module according to the obstruction state of the obstruction detector by the train in the railway tunnel; wherein the obstruction state includes obstruction caused by the train stopping or passing; the train stop monitoring module is configured to determine whether the train in the railway tunnel is running normally, and send a second obstruction alarm signal generated during abnormal running to the tunnel slave central control module; wherein the second obstruction alarm signal includes the local address code of the train stop monitoring module; the tunnel slave central control module is configured to receive the second obstruction alarm signal, and send a third obstruction alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module; the tunnel master central control module is configured to determine that a train failure occurs in the railway tunnel and control the lighting in the railway tunnel to be turned on according to the continuity of the third alarm signal. By adopting the technical solution of the embodiment of the present invention, occlusion detectors for detecting train occlusion are arranged in the railway tunnel, and an intelligent algorithm is used to effectively judge the slowing and stopping behavior of the train in the tunnel, and the opening of tunnel lighting and other equipment is automatically controlled. This can not only improve the timeliness of the lighting and fans required for evacuation and rescue in the tunnel after the train in the tunnel stops urgently due to fire or other accidents, but also avoid or reduce personal and property losses caused by delayed evacuation and rescue due to untimely manual control.

[0049] Embodiment 2

[0050] Figure 2A 1 is a schematic diagram of a railway tunnel lighting automatic control system provided by Embodiment 2 of the present invention. The embodiment of the present invention further optimizes the above embodiment on the basis of the above embodiment. The embodiment of the present invention can be combined with various optional solutions in one or more of the above embodiments. Figure 2A As shown, the railway tunnel lighting automatic control system provided in the embodiment of the present invention may include: an obstruction detector, a train stop monitoring module, a tunnel slave central control module and a tunnel master central control module; wherein:

[0051] Based on the above embodiment, optionally, the occlusion detector includes:

[0052] The obstruction detector is installed on the tunnel wall at a preset distance according to the height of the train passing through the railway tunnel;

[0053] When a train travels, slows down or stops in a railway tunnel, the obstruction detector is obstructed, and the output of the obstruction detector changes from a normally open state to a normally closed state, and a first obstruction alarm signal is sent to the train stop monitoring module.

[0054] Among them, train blocking detectors are installed at fixed intervals in the railway tunnel. In an optional scheme of the embodiment of the present invention, the intelligent filtering algorithm is described by taking the interval of 25m as an example; the blocking detector is installed on the tunnel wall, and the height distance from the top of the track is within the range of 2.5-3.5m. The train stop monitoring module is installed on the tunnel wall below the blocking detector, and the two are separated by a 2*1.5mm 2 When a train is traveling, slowing down or stopping in a tunnel, it blocks the passing obstruction detector, and the output of the obstruction detector changes from a normally open state to a normally closed state, transmitting the first obstruction alarm signal to the train stop monitoring module connected thereto.

[0055] Based on the above embodiment, optionally, the train stop monitoring module includes:

[0056] receiving the first blocking alarm signal and starting a blocking timer to determine whether the train in the railway tunnel is running normally;

[0057] If the blocking timer is greater than the preset blocking delay threshold, the train in the railway tunnel is not running normally, and a second blocking alarm signal including the local address code of the train stop monitoring module is sent to the tunnel slave central control module;

[0058] Among them, an occlusion detector for monitoring train stopping is installed at a preset distance above the train stopping monitoring module and is connected through a solid loop line.

[0059] Among them, the train stop monitoring module starts the blocking timer after receiving the closing message. The train stop monitoring module is responsible for judging whether the train is running normally according to the blocking time of the blocking timer. If it is not running normally, an alarm message is sent to the tunnel slave central control module of the power supply arm. When the blocking timing reaches the set delay alarm time T1, a second blocking alarm signal with the local coding address is sent to the tunnel slave central control module of the power supply arm. Among them, T1 is the blocking delay threshold. By setting the delay parameter, the alarm caused by the normal passage and the train above the set speed threshold (such as 60km / h) can be effectively filtered out. The parameter range can be set, for example, 1-120s. In an optional scheme of the embodiment of the present invention, for example, when the speed of the train with a length of 200m is 60km, the default value (i.e., the default value) of the blocking time formed by a detector can be set to T1=12s. Different railway lines have different speed limits. This parameter can be set according to the specific railway speed limit value, and is not specifically limited in the embodiment of the present invention. Among them, the power supply arm can refer to the power supply arm to which the train stop monitoring module belongs. All train stop monitoring modules belonging to the power supply arm are connected to the tunnel central control module of the power supply arm power cavern through a 2*2.5mm2 dedicated control bus.

[0060] Based on the above embodiment, optionally, the tunnel slave central control module includes:

[0061] The tunnel is connected to the train stop monitoring module from the central control module through a dedicated control bus laid on the tunnel wall, communicates with the train stop monitoring module and provides power.

[0062] Among them, the tunnel slave central control modules of each tunnel belonging to the railway tunnel are interconnected through an optical fiber loop, and the tunnel slave central control modules are interconnected with the tunnel main central control module; after the tunnel slave central control module receives the obstruction alarm of the detector, it adds the address code of the tunnel slave central control module and sends it to the tunnel main central control module of the railway tunnel.

[0063] Based on the above embodiment, optionally, the tunnel main central control module includes:

[0064] Starting a continuous occlusion alarm counter, receiving the third alarm signal and determining whether the count value of the continuous occlusion alarm counter reaches a preset continuous alarm quantity threshold;

[0065] If the count value of the continuous occlusion alarm counter reaches a preset continuous alarm quantity threshold, a tunnel lighting instruction is sent to a tunnel slave central control module in the railway tunnel;

[0066] Wherein, the tunnel master central control module is connected to at least one tunnel slave central control module.

[0067] The tunnel master central control module receives the third alarm signal and starts the "continuous occlusion alarm counter". When multiple occlusion detectors with consecutive addresses send occlusion alarm messages to the tunnel master central control module, and the continuous occlusion alarm count value reaches C1, the tunnel master central control module determines that a train has made an emergency stop in the tunnel; the tunnel master central control module sends a tunnel light-on instruction L_on to all tunnel slave central control modules of the railway tunnel. C1 is the threshold value of the number of continuous alarms, and the range can be set, such as 1-50; the default value can be set, such as 8.

[0068] Based on the above embodiment, optionally, the tunnel slave central control module further includes:

[0069] Receive the tunnel lighting start instruction sent by the tunnel master central control module, and send a lighting start signal to the tunnel lighting power distribution and control box associated with the tunnel slave central control module to turn on the lighting.

[0070] Each tunnel receives a lighting start command from the tunnel master central control module, and is responsible for linking the associated tunnel lighting power distribution and control box to turn on the tunnel lighting.

[0071] Figure 2B This is a flow chart of a train stop monitoring and tunnel lighting automatic start-up process provided by an embodiment of the present invention, see Figure 2B , the obstruction detector detects the obstruction caused by the train stopping or passing in the detection area, and sends a first obstruction alarm signal to the train stop monitoring module; after the train stop monitoring module receives the first obstruction alarm signal sent by the associated obstruction detector, if it is determined that it is deceleration or parking instead of normal passage, the second obstruction alarm message with the local address code is sent to the tunnel slave central control module of the power supply arm through the dedicated control bus; after the tunnel slave central control module receives the alarm message, the third obstruction alarm signal with the local address code attached is uploaded to the tunnel master central control module of the tunnel; after receiving the alarm message, the tunnel master central control module determines whether a train stop obstruction occurs according to the continuous obstruction algorithm; when it is confirmed that it is a train stop obstruction, the tunnel lighting start command is sent to all tunnel slave central control modules of the tunnel, and each tunnel slave central control module sends a light-on signal to the tunnel lighting power distribution and control box associated with it through the output unit of the local unit to turn on the tunnel lighting of each power supply arm.

[0072] The embodiment of the present invention provides a railway tunnel lighting automatic control system, which arranges an obstruction detector in the tunnel. When the obstruction detector detects an obstruction, the train stop monitoring module determines that a train is slowing down or stopping in the tunnel due to a fault or an emergency accident through the obstruction timing, and transmits the generated digital signal to the tunnel slave central control module through a dedicated control bus. Then, the tunnel master central control module in the tunnel automatically turns on and controls the tunnel lighting, which facilitates the emergency evacuation and subsequent rescue of the people on the train. At the same time, the railway tunnel lighting automatic control system can be used to synchronously control the fan equipment used for tunnel evacuation and rescue, that is, while controlling the lighting to turn on, the tunnel fan is turned on to provide a ventilation environment for the people who are evacuated and rescued after the train stops. This is particularly important when the accident train stops for evacuation due to fire risk, which can reduce casualties caused by smoke and harmful gases such as carbon monoxide.

[0073] Embodiment 3

[0074] Figure 3A The schematic diagram of the structure of a railway tunnel lighting automatic control system provided by the third embodiment of the present invention. The embodiment of the present invention further optimizes the above embodiment on the basis of the above embodiment, and the embodiment of the present invention can be combined with various optional solutions in one or more of the above embodiments. Figure 3A As shown, the railway tunnel lighting automatic control system provided in the embodiment of the present invention can be used to realize the railway tunnel lighting automatic shut-off function; wherein:

[0075] The occlusion detector 310 is configured to obtain the occlusion disappearance of the train in the railway tunnel in real time, and send a first occlusion disappearance signal to the train departure monitoring module;

[0076] The train departure monitoring module 320 is configured to determine whether the train in the railway tunnel is running normally, and send a second obstruction disappearance signal to the tunnel central control module; wherein the second obstruction disappearance signal includes a local address code of the train departure monitoring module;

[0077] The tunnel slave central control module 330 is configured to receive the second obstruction disappearance signal, and send a third obstruction disappearance signal including the local address code of the tunnel slave central control module to the tunnel master central control module;

[0078] The tunnel main central control module 340 is configured to determine, based on the continuity of the third obstruction disappearance signal, whether the train in the railway tunnel has returned to normal and control the lighting in the railway tunnel to be turned off.

[0079] Among them, when the train starts to move from the original parking state in the tunnel and gradually leaves the tunnel, during this process, the original partial obstruction will be eliminated and new obstruction will be generated. The tunnel main central control module will continue to monitor the changes in the obstruction. The occlusion detector obtains the occlusion disappearance of the train in the railway tunnel in real time, and sends the first occlusion disappearance signal to the train departure monitoring module when the occlusion disappearance is detected; the train departure monitoring module sends a second occlusion disappearance signal with the local coding address to the tunnel slave central control module of the power supply arm; after the tunnel slave central control module receives the occlusion disappearance message from the detector, it sends the third occlusion disappearance signal including the address code of the tunnel slave central control module to the tunnel master central control module of the tunnel; the tunnel master central control module runs the continuous occlusion algorithm, and when the count value of the "continuous occlusion alarm counter Ct" is less than C1 (the continuous alarm quantity threshold), the tunnel master central control module determines that the train has recovered from the parking state to the normal driving state; the tunnel master central control module sends the tunnel light off instruction L_off to all tunnel slave central control modules of the tunnel; each tunnel slave central control module sends a light off signal to the corresponding tunnel lighting distribution and control box to execute the light off operation.

[0080] In an optional solution of the embodiment of the present invention, the system further includes:

[0081] The lighting off delay module is configured to set the lighting off delay time according to the length of the railway tunnel. If the train resumes normal operation or is leaving the railway tunnel, when the lighting off delay module reaches the preset lighting off delay time, the tunnel main central control module sends a lighting off command to the slave central control modules of each tunnel to complete the automatic lighting off after the train resumes normal operation.

[0082] Among them, when the lighting off delay module determines that the train has resumed normal operation or is leaving the tunnel, the tunnel main central control module can start a "train recovery-light off delay" timer to give rescue personnel time to evacuate the tunnel and then start the light off program. The time for evacuating the tunnel can be appropriately set between 10-120 minutes according to the length of the tunnel. After the set delay time is reached, the tunnel main central control module notifies all tunnels to output the light off signal from the central control module to complete the automatic light off after the train runs normally.

[0083] Figure 3B This is a flow chart of a train departure monitoring and tunnel lighting automatic shutdown process provided by an embodiment of the present invention, see Figure 3B When the obstruction detector detects that the obstruction is eliminated, the message is sent to the tunnel main central control module through a series of transmissions. After the tunnel main central control module determines that the train has left, it sends a tunnel lighting shutdown command to each tunnel slave central control module of the tunnel. Each tunnel slave central control module sends a light-off signal to the associated tunnel lighting power distribution and control box through the local output unit, turns off the tunnel lighting of each power supply arm, and finally completes the operation of automatically shutting down the tunnel lighting after the train leaves.

[0084] An embodiment of the present invention provides an automatic control system for railway tunnel lighting. When the occlusion detector detects that the occlusion disappears, the train departure monitoring module uploads the message of the disappearance of the occlusion. The tunnel main central control module can judge that the train has run normally or left the monitoring area according to the intelligent algorithm of train departure and issue a light-off command, thereby realizing the automatic light-off function after the train leaves, and minimizing unnecessary energy loss.

[0085] Embodiment 4

[0086] Figure 4 1 is a flow chart of a railway tunnel lighting automatic control method provided in an embodiment of the present invention. The embodiment of the present invention can be applied to the case of automatic control of railway tunnel lighting. The method can be executed by the railway tunnel lighting automatic control system provided in any embodiment of the present invention. Figure 4 As shown, the railway tunnel lighting automatic control method provided in the embodiment of the present invention specifically includes the following steps:

[0087] S410: Send a first blocking alarm signal to a train stop monitoring module according to the blocking state of the blocking detector by the train in the railway tunnel.

[0088] The obstruction state includes obstruction caused by the parking or passing of a train.

[0089] On the basis of the above embodiment, optionally, the sending of the first blocking alarm signal to the train stop monitoring module according to the blocking state of the blocking detector by the train in the railway tunnel includes:

[0090] The obstruction detector is installed on the tunnel wall at a preset distance according to the height of the train passing through the railway tunnel;

[0091] When a train travels, slows down or stops in a railway tunnel, the obstruction detector is obstructed, and the output of the obstruction detector changes from a normally open state to a normally closed state, and a first obstruction alarm signal is sent to the train stop monitoring module.

[0092] S420, determining whether the train in the railway tunnel is running normally, and sending a second obstruction alarm signal generated when the train is running abnormally to the tunnel central control module.

[0093] Wherein, the second obstruction alarm signal includes the local address code of the train stop monitoring module.

[0094] Based on the above embodiment, optionally, the determining whether the train in the railway tunnel is running normally and sending the second blocking alarm signal generated when the train is running abnormally to the tunnel central control module includes:

[0095] receiving the first blocking alarm signal and starting a blocking timer to determine whether the train in the railway tunnel is running normally;

[0096] If the blocking timer counts longer than a preset blocking delay threshold, the train in the railway tunnel is not running normally, and a second blocking alarm signal including the local address code of the train stop monitoring module is sent to the tunnel slave central control module;

[0097] Among them, an occlusion detector for monitoring train stopping is installed at a preset distance above the train stopping monitoring module and is connected through a solid loop line.

[0098] S430: Receive the second obstruction alarm signal, and send a third obstruction alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module.

[0099] Based on the above embodiment, optionally, the receiving the second blocking alarm signal and sending the third blocking alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module includes:

[0100] The tunnel is connected to the train stop monitoring module from the central control module through a dedicated control bus laid on the tunnel wall, communicates with the train stop monitoring module and provides power.

[0101] Based on the above embodiment, optionally, the receiving the second blocking alarm signal and sending the third blocking alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module further includes:

[0102] Receive the tunnel lighting start instruction sent by the tunnel master central control module, and send a lighting start signal to the tunnel lighting power distribution and control box associated with the tunnel slave central control module to turn on the lighting.

[0103] S440. Determine, based on the continuity of the third alarm signal, that a train failure occurs in the railway tunnel and control the lighting in the railway tunnel to turn on.

[0104] Based on the above embodiment, optionally, determining that a train failure occurs in the railway tunnel and controlling lighting in the railway tunnel to turn on according to the continuity of the third alarm signal includes:

[0105] Starting a continuous occlusion alarm counter, receiving the third alarm signal and determining whether the count value of the continuous occlusion alarm counter reaches a preset continuous alarm quantity threshold;

[0106] If the count value of the continuous blocking alarm counter reaches a preset continuous alarm quantity threshold, a tunnel lighting start instruction is sent to a tunnel slave central control module in the railway tunnel;

[0107] Wherein, the tunnel master central control module includes at least one tunnel slave central control module.

[0108] Based on the above embodiment, optionally, the railway tunnel lighting automatic control method further includes:

[0109] Obtaining the disappearance of the obstruction of the train in the railway tunnel in real time, and sending the first obstruction disappearance signal to the train departure monitoring module;

[0110] Determine whether the train in the railway tunnel is running normally, and send a second obstruction disappearance signal to the tunnel central control module; wherein the second obstruction disappearance signal includes a local address code of the train departure monitoring module;

[0111] receiving the second obstruction disappearance signal, and sending a third obstruction disappearance signal including the local address code of the tunnel slave central control module to the tunnel master central control module;

[0112] According to the continuity of the third obstruction disappearance signal, it is determined that the train in the railway tunnel has returned to normal and the lighting in the railway tunnel is controlled to be turned off.

[0113] Based on the above embodiment, optionally, the railway tunnel lighting automatic control method further includes:

[0114] The lighting off delay time is set according to the length of the railway tunnel. If the train resumes normal operation or is leaving the railway tunnel, when the lighting off delay module reaches the preset lighting off delay time, the tunnel main central control module sends a lighting off command to the slave central control modules of each tunnel to complete the automatic lighting off after the train resumes normal operation.

[0115] The railway tunnel lighting automatic control method provided in the embodiment of the present invention can be applied to the railway tunnel lighting automatic control system provided in any embodiment of the present invention mentioned above, and has the corresponding functions and beneficial effects of the railway tunnel lighting automatic control system. For technical details not described in detail in the above embodiments, please refer to the railway tunnel lighting automatic control system provided in any embodiment of the present application.

[0116] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0117] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A railway tunnel lighting automatic control system, characterized in that: The system comprises: an obstruction detector, a train stop monitoring module, a tunnel slave central control module and a tunnel master central control module; wherein: The obstruction detector is configured to send a first obstruction alarm signal to a train stop monitoring module according to an obstruction state of the obstruction detector by a train in a railway tunnel; wherein the obstruction state includes an obstruction caused by a train stopping or passing; The train stop monitoring module is configured to receive the first obstruction alarm signal and start the obstruction timer to determine whether the train in the railway tunnel is running normally. If the timing time of the obstruction timer is greater than the preset obstruction delay threshold, the train in the railway tunnel is running abnormally, and the second obstruction alarm signal generated during abnormal running is sent to the tunnel slave central control module; wherein, the second obstruction alarm signal includes the local address code of the train stop monitoring module; the address code is used by the tunnel master central control module to determine continuous obstruction; an obstruction detector for monitoring train stops is installed at a preset distance above the train stop monitoring module and is connected via a real loop line; The tunnel slave central control module is configured to receive the second obstruction alarm signal and send a third obstruction alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module; The tunnel master central control module is configured to determine, based on the continuity of the third blockage alarm signal, that a train failure has occurred in the railway tunnel and control the lighting in the railway tunnel to be turned on, including: starting a continuous blockage alarm counter, receiving the third blockage alarm signal and determining whether the count value of the continuous blockage alarm counter reaches a preset continuous alarm quantity threshold; if the count value of the continuous blockage alarm counter reaches the preset continuous alarm quantity threshold, sending a tunnel lighting instruction to the tunnel slave central control module in the railway tunnel; The system also includes turning on the rescue passage protection door and fan equipment for tunnel evacuation while controlling the lighting to turn on; Among them, the tunnel slave central control modules belonging to the railway tunnel are interconnected through an optical fiber loop, and the tunnel slave central control modules are interconnected with the tunnel master central control module; the tunnel master central control module is connected to at least one tunnel slave central control module.

2. The system according to claim 1, characterized in that The occlusion detector comprises: The obstruction detector is installed on the tunnel wall at a preset distance according to the height of the train passing through the railway tunnel; When a train travels, slows down or stops in a railway tunnel, the obstruction detector is obstructed, and the output of the obstruction detector changes from a normally open state to a normally closed state, and a first obstruction alarm signal is sent to the train stop monitoring module.

3. The system according to claim 1, characterized in that The tunnel slave central control module includes: The tunnel is connected to the train stop monitoring module from the central control module through a dedicated control bus laid on the tunnel wall, communicates with the train stop monitoring module and provides power.

4. The system according to claim 1, characterized in that The tunnel slave central control module also includes: Receive the tunnel lighting start instruction sent by the tunnel master central control module, and send a lighting start signal to the tunnel lighting power distribution and control box associated with the tunnel slave central control module to turn on the lighting.

5. The system according to claim 1, characterized in that The system further comprises: The occlusion detector is configured to obtain the occlusion disappearance of the train in the railway tunnel in real time and send a first occlusion disappearance signal to the train departure monitoring module; The train departure monitoring module is configured to determine whether the train in the railway tunnel is running normally, and send a second obstruction disappearance signal to the tunnel central control module; wherein the second obstruction disappearance signal includes a local address code of the train departure monitoring module; The tunnel slave central control module is configured to receive the second obstruction disappearance signal, and send a third obstruction disappearance signal including the local address code of the tunnel slave central control module to the tunnel master central control module; The tunnel main central control module is configured to determine whether the train in the railway tunnel has returned to normal and control the lighting in the railway tunnel to be turned off based on the continuity of the third occlusion disappearance signal.

6. The system according to claim 5, characterized in that The system further comprises: The lighting off delay module is configured to set the lighting off delay time according to the length of the railway tunnel. If the train resumes normal operation or is leaving the railway tunnel, when the lighting off delay module reaches the preset lighting off delay time, the tunnel main central control module sends a lighting off command to the slave central control modules of each tunnel to complete the automatic lighting off after the train resumes normal operation.

7. A railway tunnel lighting automatic control method, characterized in that: The method comprises: According to the blocking state of the blocking detector by the train in the railway tunnel, a first blocking alarm signal is sent to the train stop monitoring module; wherein the blocking state includes the blocking caused by the train stopping or passing; Receive the first blockage alarm signal and start the blockage timer to determine whether the train in the railway tunnel is running normally. If the timing time of the blockage timer is greater than the preset blockage delay threshold, the train in the railway tunnel is running abnormally, and send the second blockage alarm signal generated during abnormal running to the tunnel slave central control module; wherein, the second blockage alarm signal includes the local address code of the train stop monitoring module; the address code is used by the tunnel master central control module to determine continuous blockage; an blockage detector for monitoring train stop is installed at a preset distance above the train stop monitoring module and is connected via a real loop line; receiving the second blocking alarm signal, and sending a third blocking alarm signal including the local address code of the tunnel slave central control module to the tunnel master central control module; According to the continuity of the third blocking alarm signal, determining that a train failure occurs in the railway tunnel and controlling the lighting in the railway tunnel to turn on includes: starting a continuous blocking alarm counter, receiving the third blocking alarm signal and determining whether the count value of the continuous blocking alarm counter reaches a preset continuous alarm quantity threshold; when the count value of the continuous blocking alarm counter reaches the preset continuous alarm quantity threshold, sending a tunnel lighting turn-on instruction and controlling the lighting in the railway tunnel to turn on; While controlling the lighting to be turned on, the protective doors and fan equipment of the rescue passage used for tunnel evacuation are turned on; Among them, the tunnel slave central control modules belonging to the railway tunnel are interconnected through an optical fiber loop, and the tunnel slave central control modules are interconnected with the tunnel master central control module; the tunnel master central control module is connected to at least one tunnel slave central control module.

8. The method according to claim 7, characterized in that The method of sending a first blocking alarm signal to a train stop monitoring module according to the blocking state of the blocking detector by the train in the railway tunnel comprises: The obstruction detector is installed on the tunnel wall at a preset distance according to the height of the train passing through the railway tunnel; When a train travels, slows down or stops in a railway tunnel, the obstruction detector is obstructed, and the output of the obstruction detector changes from a normally open state to a normally closed state, and a first obstruction alarm signal is sent to the train stop monitoring module.

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