Method for controlling a conveying device, control device, conveying device

Abstract

The invention provides a method for controlling a conveying device, and the method comprises the steps: responding to an emergency signal, and enabling a conveying device, consistent with an escape direction, in conveying devices associated with an emergency event position to continue to operate; and for the conveying devices associated with the emergency event position, the conveying devices running towards the floor where the emergency event is located are made to stop running towards the floor. Wherein the conveying device associated with the emergency event position comprises a conveying device of which any one of a conveying inlet and a conveying outlet is located on the floor where the emergency event is located.

Description

Technical Field

[0001] This application relates to a conveying device, and more specifically, to a technology for controlling a conveying device in an emergency. Background Art

[0002] When an emergency such as a fire or an earthquake occurs in a building, the people in the building need to be evacuated to the exits of the building as soon as possible. When an emergency occurs, escalators and elevators usually stop operating. At the same time, the emergency evacuation system in the building usually guides people to evacuate through the safety passages. Summary of the Invention

[0003] The method for controlling a conveying device provided in this application may include: in response to an emergency signal, causing the conveying devices associated with the emergency event location and consistent with the escape direction to continue operating; and for the conveying devices associated with the emergency event location and running towards the floor where the emergency event is located, causing them to stop running towards that floor; where the conveying devices associated with the emergency event location include the conveying devices with either the conveying entrance or the conveying exit located on the floor where the emergency event is located.

[0004] The method, as an example, may further include: determining the distances between the conveying devices associated with the emergency event location and the location where the emergency event is located; if there are conveying devices with the determined distances less than a distance threshold, stopping their operation; and if there are conveying devices with the determined distances greater than the distance threshold, causing the conveying devices with the running direction consistent with the escape direction to continue operating.

[0005] The method, as an example, may further include: determining the distances between the conveying devices associated with the emergency event location and the location where the emergency event is located; if there are conveying devices with the determined distances greater than the distance threshold among the conveying devices running towards the floor where the emergency event is located, controlling them to run in the reverse direction.

[0006] The method, as an example, may further include: outputting a signal indicating the operating state of the conveying device; and / or sending a signal to the control system of the building where the emergency event is located to indicate the conveying devices that are still operating or have stopped operating; where the operating state of the conveying device includes running upward, running downward, and stopping.

[0007] The method, as an example, the conveying device includes any one or both of an escalator and a moving walkway. When the conveying device is a moving walkway, the floor where the emergency event is located includes the location where the emergency event is located.

[0008] According to another aspect of the present application, there is also provided a control device for a conveying device, the control device comprising: a communication component for receiving and transmitting signals; a processor configured to, in response to an received emergency signal, cause the conveying devices associated with the emergency event location and consistent with the escape direction to continue operating; and for the conveying devices associated with the emergency event location and running towards the floor where the emergency event is located, cause them to stop running towards that floor; wherein, the conveying devices associated with the emergency event location include the conveying devices with either the conveying inlet or the conveying outlet located on the floor where the emergency event is located.

[0009] For the control device described above, as an example, the processor is further configured to: determine the distances between the respective conveying devices associated with the emergency event location and the location where the emergency event is located; and if there are conveying devices with the determined distances less than a distance threshold, stop the operation of those conveying devices; and if there are conveying devices with the determined distances greater than the distance threshold, cause the conveying devices with the running direction consistent with the escape direction among them to continue operating.

[0010] For the control device described above, as an example, the processor is configured to: determine the distances between the respective conveying devices associated with the emergency event location and the location where the emergency event is located; and if there are conveying devices with the determined distances greater than the distance threshold among the conveying devices running towards the floor where the emergency event is located, control them to run in the reverse direction.

[0011] For the control device described above, as an example, the processor is configured to output a signal indicating the operating state of the conveying device; and / or, cause the communication component to send a signal to the control system of the building where the emergency event is located to indicate the conveying devices that are still operating; wherein, the operating state of the conveying device includes running upward, running downward, and stopping.

[0012] There is also provided a conveying device configured to execute any one of the methods described above; or including any one of the control devices described above.

[0013] There is also provided a non-transitory computer storage medium having instructions stored thereon which, when executed, implement any one of the methods described above. Description of the Drawings

[0014] The embodiments of the present application will be described in detail below in conjunction with the drawings so that the present application can be more fully understood, wherein:

[0015] Figure 1 is a schematic diagram of the escalator 10;

[0016] Figure 2 is a schematic diagram of the interaction between the control system of an example conveying device and the building control system;

[0017] Figure 3 is a flowchart of a method for controlling a conveying device according to an example of the present application;

[0018] Figure 4 is a flowchart of a method for controlling a conveying device according to some other examples of the present application;

[0019] Figure 5 is a simple schematic diagram of a fire occurring in a building, which schematically shows floors and escalators;

[0020] Figure 6 is a flowchart of a method for controlling a conveying device according to some specific examples of the present application;

[0021] Figure 7 is a schematic structural diagram of a control device for a conveying device according to an example of the present application. Detailed implementation manners

[0022] To help those skilled in the art understand exactly the subject matter claimed in the present application, the following will describe in detail the specific implementation manners of the present application with reference to the accompanying drawings.

[0023] The conveying device described in the present application may include escalators, travelators, etc. for conveying passengers and / or articles. Among them, a travelator may also be called a moving walkway, and the conveying device may also be called a transmission device, a transmission system, a conveying system, a passenger conveyor, a passenger conveyor system, etc. Although the following embodiments of the present application take an escalator as an example of the conveying device to illustrate the present application, it should be understood that the examples of the comb plates described in the present application in combination with the escalator can be applied to other conveying devices or conveying systems such as travelators.

[0024] Figure 1 An escalator 10 is illustrated. In the following description, it should become apparent that the present invention is applicable to other passenger conveyor systems, such as moving walkways. The escalator 10 generally includes a truss 12 extending between a lower station 14 and an upper station 16. A plurality of sequentially connected steps or pallets 18 are connected to a step chain 20 and travel through a closed-loop path within the truss 12. A pair of handrails 22 includes a moving handrail 24. A drive machine 26 or a drive system is typically located in a machine space 28 below the upper station 16; however, an additional machine space 28' may be located below the lower station 14. The drive machine 26 is configured to drive the steps 18 and / or the handrail 24 through the step chain 20. The drive machine 26 operates to move the steps 18 in a selected direction at a desired speed under normal operating conditions.

[0025] The step 18 makes a 180-degree change in the forward direction in a turning area 19 located below the lower landing 14 and the upper landing 16. The step 18 is pivotally attached to a step chain 20 and follows a closed-loop path of the step chain 20, running from one landing to another and then back again.

[0026] The drive machine 26 includes a first drive member 32 such as a motor output sheave, which is connected to a drive motor 34 by a belt reduction assembly 36. The belt reduction assembly 36 includes a second drive member 38 such as an output sheave, which is driven by a tensioning member 39 such as an output belt. In some embodiments, the first drive member 32 is the driving member and the second drive member 38 is the driven member.

[0027] As used herein, in various embodiments, the first drive member 32 and / or the second drive member 38 can be any type of rotating device, such as a sheave, pulley, gear, wheel, sprocket, tooth, pinion, etc. In various embodiments, the tensioning member 39 can be configured as a chain, belt, cable, band, strap, strip, or any other similar device that operatively connects two elements to provide a driving force from one element to another. For example, the tensioning member 39 can be any type of interconnecting member that extends between the first drive member 32 and the second drive member 38 and operatively connects the first drive member 32 and the second drive member 38. In some embodiments, as Figure 1 shown, the first drive member 32 and the second drive member can provide belt reduction. For example, the diameter of the first drive member 32 can be approximately 75 mm (2.95 inches), while the diameter of the second drive member 38 can be approximately 750 mm (29.53 inches). For example, belt reduction allows for the replacement of sheaves to change the speed for 50 or 60 Hz power applications or different step speeds. However, in other embodiments, the second drive member 38 can be substantially similar to the first drive member 32.

[0028] As noted, the first drive member 32 is driven by the drive motor 34 and is thus configured to drive the tensioning member 39 and the second drive member 38. In some embodiments, the second drive member 38 can be an idler gear or similar device that is driven by means of the tensioning member 39 through an operative connection between the first drive member 32 and the second drive member 38. The tensioning member 39 travels around a loop defined by the first drive member 32 and the second drive member 38, which loop may hereinafter be referred to as the small loop. The small loop is provided for driving a larger loop, which is formed by the step chain 20 and is driven by, for example, an output sheave 40. Under normal operating conditions, the tensioning member 39 and the step chain 20 move in unison based on the speed of movement of the first drive member 32 driven by the drive motor 34.

[0029] The escalator 10 further includes a controller 115 that is in electronic communication with the drive motor 34. As shown, the controller 115 can be located in the machine space 28 of the escalator 10 and is configured to control the operation of the escalator 10. For example, the controller 115 can provide a drive signal to the drive motor 34 to control the acceleration, deceleration, stop, etc. of the step tread 18 via the step chain 20. The controller 115 can be an electronic controller including a processor and an associated memory that includes computer-executable instructions that, when executed by the processor, cause the processor to perform various operations. The processor can be, but is not limited to, a single-processor or multi-processor system of any of a variety of possible architectures, including field-programmable gate arrays (FPGAs), central processing units (CPUs), application-specific integrated circuits (ASICs), digital signal processors (DSPs), or graphics processing units (GPUs) hardware that are arranged homogeneously or heterogeneously. The memory can be, but is not limited to, random access memory (RAM), read-only memory (ROM), or other electronic, optical, magnetic, or any other computer-readable medium.

[0030] Figure 2 is a schematic diagram of the interaction between the control system of an exemplary conveying device and a building control system. As Figure 2 shown, the conveying device 52 is disposed within the building 50. The control system 520 of the conveying device 52 is communicatively connected to the control system 500 of the building 50, such as a wireless communication connection or a cable connection. As an example, the control system 520 is implemented, for example, in or partially in the controller of the conveying device 52. The control system 500 is, for example, a system used by the building 50 to monitor emergency events such as fires and implement systems including evacuation, such as a building automation control system.

[0031] Figure 3It is a flowchart of a method for controlling a conveying device according to an example of the present application. In step S300, in response to an emergency signal, among the conveying devices associated with the emergency event location, the conveying devices that are consistent with the escape direction continue to operate. For example, the emergency signal is issued by the control system of the building where the conveying device is located, and this signal may include information indicating the emergency event location. As an alternative, the emergency signal is a warning signal triggered by the control system of the building where the conveying device is located in the event of an emergency. In this case, the location of the emergency event can be further determined. The control system of the building can preset an escape direction, and the escape direction may be different depending on the location of the emergency event. In step S302, among the conveying devices associated with the emergency event location, the conveying devices that are running towards the floor where the emergency event is located are made to stop running towards that floor. The conveying devices associated with the emergency event location include those with a conveying inlet or a conveying outlet located on the floor where the emergency event is located. Here, the conveying inlet refers to the position where conveyed objects such as pedestrians and items board the conveying device, and the conveying outlet refers to the position where conveyed objects such as pedestrians and items leave the conveying device.

[0032] In the event of an emergency, compared with stopping all conveying devices from operating, making the conveying devices that are consistent with the escape direction continue to operate is more helpful for evacuating people to quickly leave.

[0033] Such as Figure 3 The described method can be executed by Figure 2 the control system 520 therein. As an alternative, it can be executed by a controller that is independent of the control system 520 but can communicate with the control system 520. In some cases, such as Figure 3 the described method can be executed by the control system 500 of the building. In this case, the control system 500 may directly control the conveying device or send a control signal to the control system of the conveying device.

[0034] Refer to simultaneously Figure 2 and Figure 3。The control system 520 of the conveying device 52 determines the escape direction in response to an emergency signal and causes the conveying devices associated with the emergency event location and having the same running direction as the escape direction to continue operating (step S300). In this example, the emergency signal is sent by the control system 500 of the building 50. Specifically, the control system 500 controls the warning components located in the emergency event area to send out the emergency signal, and this emergency signal triggers the control system 520 of the conveying device 52. The control system 520 that receives the emergency signal can determine the occurrence location of the emergency event based on the signal source. The control system 520 of the conveying device determines the escape direction in response to this emergency signal. As an example, the control system 520 can obtain the escape direction from the building control system 500. After determining the escape direction, the control system 520 determines which of the conveying devices associated with the emergency event location have a running direction that is the same as the escape direction, and then causes the conveying devices with the same running direction as the escape direction to continue operating. For the conveying devices associated with the emergency event location and running towards the floor where the emergency event is located, they are made to stop running towards that floor (step S302).

[0035] Here, the conveying device can include escalators and moving walkways. For example, the conveying devices in the building 50 can be escalators, can be moving walkways, or may include both escalators and moving walkways. When taking the moving walkways operating on the same floor as the conveying device, the floor where the emergency event is located mentioned in step S302 can be the area or location where the emergency event is located.

[0036] According to some examples of the present application, combined with Figure 3 the method for controlling the operation of the conveying device described also includes determining the distance between each conveying device associated with the emergency event location and the location where the emergency event is located. Figure 4 is a flowchart of the method for controlling the operation of the conveying device according to these examples. As Figure 4As shown, at step S400, an emergency signal is received. At step S401, the distance between the conveying device associated with the emergency event and the location of the emergency event is determined. For example, the emergency event occurs in a certain area on the second floor, and the signal indicating the emergency event in this area triggers the control system of the conveying device. The control system determines the distance between the conveying devices between the first floor and the second floor and between the second floor and the third floor (i.e., the conveying devices associated with the location of the emergency event) and the location of the emergency event. At step S402, the determined distance is compared with a distance threshold. The distance threshold is preset, and it can be set for different emergency events or directly set to a relatively large value to ensure safety. If the distance between the location where the emergency event occurs and the conveying device is less than the distance threshold, it is considered that the conveying device is in a non-safe operating area. If the distance between the location where the emergency event occurs and the conveying device is greater than the distance threshold, it can be considered that the conveying device is in a safe operating area. According to the comparison result of step S402, it proceeds to step S404 and / or step S406.

[0037] If it is determined in step S402 that the distances between all the conveying devices associated with the location of the emergency event and the location of the emergency event are less than the distance threshold, then at step S404, the operation of all the conveying devices associated with the location of the emergency event is stopped. If it is determined in step S402 that the distances between some of the conveying devices associated with the location of the emergency event and the location of the emergency event are less than the distance threshold and some are greater than the distance threshold, then it proceeds to step S403. At step S403, the conveying devices whose determined distances are less than the distance threshold in step S402 are stopped from operating. At the same time, among the conveying devices whose determined distances are greater than the distance threshold, the conveying devices whose running directions are consistent with the escape direction continue to operate.

[0038] According to some situations of this example, after the conveying devices whose determined distances are less than the distance threshold are stopped from operating in step S403 and the conveying devices whose running directions are consistent with the escape direction among the conveying devices whose determined distances are greater than the distance threshold continue to operate, it may further include reversing the conveying devices that are running towards the floor where the emergency event is located among the conveying devices whose determined distances are greater than the distance threshold, that is, running towards the escape direction.

[0039] Figure 5 is a simple schematic diagram of a fire occurring in a building, which shows the floors and escalators. Figure 6 is a flowchart of a method for controlling a conveying device according to some specific examples of the present application, Figure 6 The process described is, for example, executed by Figure 2 the control system 520 in

[0040] Meanwhile, with reference to Figure 5 , Figure 6 and Figure 2。In this example, the conveying device is an escalator, and the building is a multi-story building with multiple floors, such as including 6 floors from Floor 1 to Floor 6. The building (i.e., the structure) 50 is schematically divided into two areas here, Area A and Area B. In this example, there are up and down escalators installed between each floor of the building 50 and other floors. For convenience, Figure 5 in it, the up escalator is installed in Area A, and the down escalator is installed in Area B. However, it should be noted that Figure 5 this is just an example. In actual applications, some floors of the building 50 may have two sets of escalators installed, some floors may have one set, etc.

[0041] The control system 500 of the building (i.e., the structure) 50 detects a fire in the Area A part of Floor 4 and immediately triggers a fire alarm signal. Correspondingly, the control system 520 of the escalator (conveying device) 52 determines that the fire alarm signal has been triggered and enters step S602 from the step S600 of judging whether the fire alarm signal is triggered. In step S602, it is judged whether the control system 520 has determined the escape direction. For the determination of the escape direction, the control system 520 can obtain it from the control system 500 of the building 50, or alternatively, determine it according to the escape broadcast of the control system 500 of the building 50. In Figure 5 the example shown, the escape direction is downward and the escape direction on this floor should be in the direction away from Area A according to the area where the fire occurs (Area A of Floor 4). When the escape direction has been determined, it enters step S604. In step S604, the control system 520 judges the distance from the conveying device associated with the fire location to the fire location and judges whether the conveying device is consistent with the escape direction. Figure 5 in it, the conveying devices associated with the fire include the escalators 700 and 702 running between the third floor and the fourth floor, and the escalators 710 and 712 running between the fourth floor and the fifth floor. The control system 520 respectively determines the distances from the escalators 700, 702, 710 and 712 to the fire location. Here, the distance threshold is, for example, 20 meters. According to the results determined in step S604, it respectively enters steps S606 and S608. The control system 520 determines that the distances from the escalators 700 and 710 associated with the fire location to the fire location are less than the distance threshold and it is not very safe to operate in this area, so it enters step S606 to stop the operation of the escalators 700 and 710. The control system 520 determines that the distances from the escalators 702 and 712 associated with the fire location to the fire location are greater than the distance threshold, and the running direction of the escalator 702 is from the fourth floor to the third floor, which is consistent with the escape direction, so it enters step S608, and the control system 520 controls the escalator 702 to continue running.

[0042] Return to step S600. If a fire alarm is not triggered, end the process and do not execute this method. Additionally, if the result in step S602 is that the escape direction is not determined, proceed to step S603 to determine whether the time for which the escape direction cannot be determined has reached a preset duration. If so, proceed to step S606; otherwise, return to step S602.

[0043] According to some examples of the present application, for those conveying devices not associated with the location of an emergency, such as the escalators operating between the first and second floors, the second and third floors, and the fifth and sixth floors in this example. The control system 520 can control them to operate in the escape direction. In this case, all the conveying devices that originally operated upward may be adjusted to operate downward.

[0044] According to the various examples of the method for controlling the operation of a conveying device of the present application, it may also include outputting a signal indicating the operating state of the conveying device. For example, outputting whether the escalator is operating upward, downward, or stopped through the existing display components of the escalator, so that people can timely know the operating condition of the escalator.

[0045] According to the various examples of the method for controlling the operation of a conveying device of the present application, in some other cases, it may also include sending a signal to the control system of the building where the emergency occurs to indicate the conveying devices that are still operating. For example, in combination with Figure 5 the example, the control system 520 can send a signal to the control system 500 of the building 50 to indicate the escalators that have currently stopped operating or the escalators that are still operating. The control system 500 of the building 50 can broadcast this accordingly, so that the people to be evacuated can know, which helps to evacuate quickly and orderly.

[0046] According to some examples of the present application, the method for controlling the operation of a conveying device described herein may also include outputting the escape direction in ways such as lighting and voice, which can be executed by the control system of the building. It may also include outputting the operating condition of the conveying device and the recommended escape direction in voice, which can be implemented, for example, by the control system of the conveying device.

[0047] In addition, in combination with Figures 2 to 6 the various examples described, in some cases, the control system 520 can be set to or partially set to Figure 1 the controller 115 of the escalator 10 shown, or can be communicatively connected thereto. For example, the control system 520 is implemented as a software module by program instructions and is all incorporated into Figure 1Part of the sub - modules of the software module is implemented in the controller 115 shown, or part of the sub - modules are implemented in the controller 115; alternatively, the control system 520 is implemented in hardware such as a central processing unit (CPU), an application - specific integrated circuit (ASIC), a digital signal processor (DSP), or a graphics processing unit (GPU) through program instructions and can be communicatively connected to the controller 115.

[0048] Figure 7 is a schematic structural diagram of a control device for a conveying device according to an example of the present application. As Figure 7 shown, the control device includes a communication component 70 and a processor 72. The communication component 70 is used for receiving and transmitting signals. The processor 72 is configured to, in response to the received emergency signal, cause the conveying devices in the conveying device associated with the emergency event location and in the escape direction to continue running; and for the conveying devices in the conveying device associated with the emergency event location and running towards the floor where the emergency event is located, to stop running towards that floor. The conveying devices associated with the emergency event location include the conveying devices with either the conveying inlet or the conveying outlet located on the floor where the emergency event is located.

[0049] According to Figure 7 the control device shown, it can execute any example of the control method for the conveying device described above in combination with Figure 3 , Figure 4 and Figure 6 . For example, the processor 72 can be configured to execute the steps other than sending signals and receiving signals in the above - mentioned method examples, such as step S300 and step S302 ( Figure 3 ); steps S401 to S406 ( Figure 4 ); steps S602 to S608 ( Figure 6 ).

[0050] According to each example of the control device for a conveying device of the present application, the processor can also be configured to generate a signal indicating the operating state of the conveying device. For example, it can display whether it is running upward, downward, or stopped through the existing display component of the conveying device, so that people can timely know the operating condition of the escalator.

[0051] According to each example of the control device for a conveying device of the present application, in some other cases, the processor can also be configured to generate and cause the communication component to send a signal to the control system of the building where the emergency event is located to indicate the conveying devices that are still running. This helps the control system of the building to output the signal through broadcasting or other means so that the evacuating crowd can know which conveying devices are still running.

[0052] According to some examples of the present application, the control device for a conveying device described herein may further include outputting the operation status of the conveying device and the recommended escape direction in a voice manner, which may be implemented by, for example, the control system of the conveying device.

[0053] In some examples, Figure 7 the illustrated control device may be implemented in Figure 1 the controller 115 of the escalator shown. In this case, the part of the controller 115 for transmitting signals may be used as the communication component 70 of the control device.

[0054] According to an example of the present application, a control system for a conveying device is further provided. The control system is configured to execute any one of the examples in the method for controlling the operation of the conveying device described herein; or, includes any one of the examples of the control device for the conveying device.

[0055] According to an example of the present application, a conveying device is further provided. The conveying device is configured to execute any one of the examples in the method for controlling the operation of the conveying device described herein; or, includes any one of the examples of the control device for the conveying device. The conveying device is, for example, an escalator.

[0056] A non-transitory computer storage medium is further provided, on which instructions are stored, and when the instructions are executed, any one of the methods described above is implemented.

[0057] The conveying device described according to the examples of the present application is, for example, an escalator, or may also be a moving walkway, or includes both.

[0058] Without contradiction or conflict, the technical features in the examples described herein may be combined with each other to form embodiments not described herein, and these embodiments should also be covered by the scope of the present application.

[0059] Although specific embodiments of the present application have been shown and described in detail to illustrate the principles of the present application, it should be understood that the present application may be implemented in other ways without departing from such principles.

Claims

1. A method for controlling a conveying device, characterized in that, The method includes: In response to an emergency signal, causing a conveying device associated with the emergency event location and consistent with the escape direction to continue operating; and For a conveying device associated with the emergency event location and running towards the floor where the emergency event is located, causing it to stop running towards that floor; Wherein, the conveying device associated with the emergency event location includes a conveying device with either the conveying inlet or the conveying outlet located on the floor where the emergency event is located.

2. The method according to claim 1, characterized in that, The method further includes: Determining the distance from each conveying device associated with the emergency event location to the location where the emergency event is located; If there is a conveying device with the determined distance less than the distance threshold, stopping its operation; and if there is a conveying device with the determined distance greater than the distance threshold, causing the conveying device with the running direction consistent with the escape direction to continue operating.

3. The method according to claim 1 or 2, characterized in that, The method further includes: Determining the distance from each conveying device associated with the emergency event location to the location where the emergency event is located; If there is a conveying device with the determined distance greater than the distance threshold among the conveying devices running towards the floor where the emergency event is located, controlling it to run in the reverse direction.

4. The method according to any one of claims 1 to 3, characterized in that, The method further includes: Outputting a signal indicating the operating state of the conveying device; and / or Sending a signal to the control system of the building where the emergency event is located to indicate the conveying devices that are still operating or stopped; Wherein, the operating state of the conveying device includes running upward, running downward, and stopped.

5. The method according to any one of claims 1 to 3, characterized in that, The conveying device includes any one or both of an escalator and a moving walkway. When the conveying device is the moving walkway, the floor where the emergency event is located includes the location where the emergency event is located.

6. A control device for a conveying device, characterized in that, The control device includes: A communication component for receiving and sending signals; A processor configured to, in response to the received emergency signal, cause a conveying device associated with the emergency event location and consistent with the escape direction to continue operating; and for a conveying device associated with the emergency event location and running towards the floor where the emergency event is located, causing it to stop running towards that floor; Wherein, the conveying device associated with the emergency event location includes a conveying device with either the conveying inlet or the conveying outlet located on the floor where the emergency event is located.

7. The control device according to claim 6, characterized in that, The processor is further configured to: Determine the distance between each conveying device associated with the emergency event location and the location where the emergency event is located; and If there is a conveying device with the determined distance less than the distance threshold, stopping the operation of the conveying device; and if there is a conveying device with the determined distance greater than the distance threshold, causing the conveying device with the running direction consistent with the escape direction to continue operating.

8. The control device according to claim 6 or 7, characterized in that, The processor is configured to: Determine the distance between each conveying device associated with the emergency event location and the location where the emergency event is located; and If there is a conveying device with the determined distance greater than the distance threshold among the conveying devices running towards the floor where the emergency event is located, controlling it to run in the reverse direction.

9. The control device according to any one of claims 6 to 8, characterized in that, The processor is configured to: Generate a signal indicating the operating state of the conveying device; and / or, Controlling the communication component to send a signal to the control system of the building where the emergency event occurs to indicate the conveying device that is still operating; Wherein, the operating states of the conveying device include traveling upward, traveling downward, and stopping.

10. The control device according to any one of claims 6 to 8, characterized in that The conveying device includes any one or both of an escalator and a moving walkway. When the conveying device is the moving walkway, the floor where the emergency event occurs includes the location where the emergency event occurs.

11. A conveying device, characterized in that The conveying device is configured to execute the method according to any one of claims 1 to 5; or includes the control device according to any one of claims 6 to 10.

12. A non-transitory computer storage medium storing instructions which, when executed, implement the method according to any one of claims 1 to 5.

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