Rail transit escalator remote safety control system and method

Abstract

The invention discloses a rail transit escalator remote safety control system and method in the technical field of urban rail transit. The method comprises the steps that the latest environment state of an escalator is obtained; judging whether people or articles are detained or not based on the latest environment state of the escalator; and when the latest environment state of the escalator is responded, a control command is issued to an escalator control box for start-stop control when no person or article is left, and otherwise, the control command is not issued. According to the invention, the environment state of the escalator is analyzed in real time, and the monitoring result of the environment state of the escalator is pushed to the escalator control service for remote escalator control, so that on the premise of ensuring the safety, the efficiency of the step of switching on and off the escalator in a daily switching station is greatly improved, and the labor cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to a remote safety control system and method for a rail transit escalator, belonging to the technical field of urban rail transit. Background Art

[0002] Urban rail transit refers to an urban public passenger transportation system that uses dedicated track guidance, including subway systems, light rail systems, urban rapid rail transit systems, monorail systems, modern tram systems, automatic guided rail (APM) systems, and maglev systems. At present, the construction of urban rail transit in my country is accelerating, and the subway has become the most commonly used means of transportation for daily travel in many cities.

[0003] The transfer passages and entrances and exits of subway stations are usually equipped with escalators as the main means of transporting passengers, supplemented by staircases. Currently, the opening, stopping, emergency stop and direction change of escalators are all manually confirmed by staff on site and then manually operated. However, due to limited staff and the different sizes of stations, the time required to reach an escalator and deal with emergencies varies, resulting in the inability to perform safe and efficient control operations and timely emergency responses in the subway station control room. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a remote safety control system and method for rail transit escalators. In view of the problem that in reality, staff members have to manually confirm the escalator environment and perform manual switch operations one by one, remote escalator control is performed through environmental detection of the escalator, which greatly improves the efficiency of the escalator switching link in daily switch stations.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides a rail transit escalator remote safety control method, comprising: Get the latest environmental status of the escalator; Determine whether there are people or objects trapped based on the latest environmental status of the escalator; In response to the latest environmental status of the escalator indicating that no person or article is stranded, a control command is sent to the escalator control box to start and stop the escalator, otherwise no control command is sent.

[0006] Furthermore, the latest environmental status is obtained by analyzing and counting the video data captured by the monitoring camera on the escalator through the video analysis service.

[0007] Furthermore, the video analysis service uses candidate region-based target detection technology and OpenPose's human pose estimation technology to identify and locate people in video data, and uses the Faster-RCNN network to identify and locate objects of specific categories.

[0008] Furthermore, when the video analysis service detects that the latest environmental status of the escalator is inconsistent with the cache of the escalator environmental status detection, the escalator logo and the latest environmental status are pushed to the escalator control service, and the cache setting of the escalator environmental status detection logo is changed at the same time.

[0009] Furthermore, the video analysis service can also detect the environmental alarm status of the escalator, and in response to the inconsistency between the latest environmental alarm status of the escalator and the cache of the environmental alarm status detection of the escalator, push the escalator identifier and the latest environmental alarm status to the escalator control service, and at the same time change the cache setting of the environmental alarm status detection identifier of the escalator.

[0010] Furthermore, the environmental alarm state includes a normal state and an abnormal state, wherein the abnormal state includes someone falling on the escalator, someone being pinched on the escalator, objects being stuck on the escalator, smoke on the escalator and flames on the escalator.

[0011] Furthermore, when the escalator control service receives the latest environmental alarm status provided by the video analysis service as an abnormal state, it determines the operating status of the escalator at this time: if the escalator is in operation, a control command to stop the escalator is issued; otherwise, no control command is issued, and only the latest environmental alarm status information is pushed to the outside.

[0012] In a second aspect, the present invention provides a rail transit escalator remote safety control system, comprising: Data acquisition module: obtain the latest environmental status of the escalator; Data analysis module: determines whether there are people or objects stranded based on the latest environmental status of the escalator; Control execution module: in response to the latest environmental status of the escalator indicating that there is no person or object trapped, a control command is sent to the escalator control box to start and stop the escalator, otherwise no control command is sent.

[0013] In a third aspect, the present invention provides a rail transit escalator remote safety control device, including a processor and a storage medium; The storage medium is used to store instructions; The processor is used to operate according to the instructions to execute the steps of any of the above methods.

[0014] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of any of the above methods when executed by a processor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention detects the environment of the escalator and performs remote escalator control based on the detection results. Under the premise of ensuring safety, it greatly improves the efficiency of the escalator switching link in daily switch stations, avoids the manual confirmation and manual switching operation of the escalator environment by staff one by one in reality, and effectively reduces the labor cost.

[0016] Second, the present invention uses intelligent video image analysis technology to analyze the environment of multiple escalators in real time, and then combines the mechanical status information of the escalators in comprehensive monitoring to comprehensively judge the escalator control strategy and automatically remotely control the escalators in parallel. This remote, fast, parallel and safe escalator control effectively improves the subway station's ability to control escalators.

[0017] 3. The present invention changes the daily handling of escalator-related emergency events in subway stations from the original post-processing to a system of rapid pre-warning and in-process processing, which greatly improves the emergency response capability of subway operation management to escalator events, reduces operational risks, and provides more comprehensive, reliable, and intelligent auxiliary decision-making information for the control of escalators by subway operations, further improving the informationization, automation, and intelligence level of comprehensive monitoring of subway stations. In addition, the station that has built the ISCS system that meets the national standard can be seamlessly migrated and applied. After being applied to different stations, only the database configuration needs to be modified, and no modification of the program is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 A system topology diagram of a rail transit escalator remote safety control method provided in Embodiment 1 of the present invention; Figure 2 A thread collaboration workflow diagram of a rail transit escalator remote safety control method provided in the first embodiment of the present invention; Figure 3 This is a system hardware and software deployment diagram of a rail transit escalator remote safety control method provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0020] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention.

[0021] Embodiment 1: A rail transit escalator remote safety control method, which is based on the universal rail transit ISCS integrated monitoring platform. Figure 1-2 , the system is divided into four layers, namely the device layer, access layer, data processing layer and display layer. The functions and collaboration methods of the software and hardware at each layer are as follows: 1. Equipment layer The equipment layer mainly includes the escalators in the escalator system and the camera equipment of the CCTV system. Its core work is to receive and execute the control instructions issued by the station escalator control service to complete the start and stop operations of the escalator.

[0022] The equipment layer is the infrastructure for remote control of escalators. Subway stations need to switch the manual to automatic control method of the currently built escalator equipment and operate remote automatic control. In addition, it is necessary to add or adjust the camera equipment monitoring each escalator to ensure that the camera can collect clearer and more comprehensive escalator monitoring videos. The specific collaboration methods of the equipment layer are as follows: In the daily subway switch station, the escalator needs to be turned on and off. The video analysis service starts to obtain the video stream information of the cameras monitoring the escalators, and analyzes and counts the environmental status of the escalator. At this time, the camera provides the video analysis service with analysis video data. If several escalators need to be turned on when the station is opened, the video analysis service will simultaneously obtain the surveillance cameras corresponding to these escalators, and asynchronously perform intelligent analysis and statistics on the latest environmental status of these escalators. If the environmental status of an escalator is that someone or something is stranded, the escalator control service will not issue an opening control command to the escalator device. The latest environmental status of the escalator is obtained by polling, and the opening control command is not issued until the status changes to no people or objects are stranded on the escalator. After receiving the control command, the escalator control box executes the corresponding command to respond to the escalator control service.

[0023] In the scenario of safety control of escalators during the daily operation period of subway stations, the video analysis service starts to obtain the video stream information of the cameras monitoring each escalator in real time, and analyzes and counts the environmental alarms of the escalator. At this time, the camera provides the video analysis service with analysis video data. If the video analysis service analyzes and counts environmental alarm information on a certain escalator, such as smoke from the escalator, it will push the information to the escalator control service. The escalator control service combines the status of the escalator at this time with the integrated monitoring system. If it is in the running state, it will send a stop control command to the escalator. After receiving the control command, the escalator control box executes the corresponding command to respond to the escalator control service. At the same time, the alarm information is pushed to the integrated monitoring platform, and the integrated monitoring platform executes the corresponding emergency plan process.

[0024] 2. Access Layer The access layer mainly includes the front-end processor FEP, ISCS interface service and video surveillance service.

[0025] The services work as follows: 1. The front-end processor FEP is used for data collection and pre-processing of each system at the equipment layer. It converts the points needed in the escalator system, such as the manual and automatic state, running state, and up and down state points of the escalator, and logically converts multiple related points into calculation points to facilitate subsequent service use.

[0026] 2. The ISCS interface service is used to collect the point data of each system equipment layer after secondary processing from the front-end processor, and register the point data in the ISCS system as a SCADA node, and provide it to the business system service.

[0027] 3. Video surveillance services are used to collect, store and manage terminal equipment for video in each monitoring area of ​​the station, provide station staff with auxiliary tools for station inspections, and provide basic analysis conditions and data for video analysis services.

[0028] 3. Data Processing Layer The data processing layer mainly includes escalator control services and video analysis services. It is the core layer of the system and the logical center of the entire escalator remote safety control system. The working methods of each service in the data processing layer are as follows: 1. Database service is mainly used for the storage and data service of structured data, including system configuration, escalator environment status, escalator environment alarm, escalator operation status, command issuance operation information and other data.

[0029] 2. The video analysis service mainly uses computer vision, target detection technology based on candidate regions and human posture estimation technology of OpenPose, and uses Faster-RCNN network to identify and locate specific categories of objects. When it is analyzed that there are people or objects of a certain category in the escalator area, and the cache of the escalator environment status detection is normal, the escalator logo and escalator environment status are pushed to the escalator control service, and the cache of the escalator environment status detection logo is set to exist. When it is analyzed that there are no people or objects of a certain category in the escalator area, and the cache of the escalator environment status detection logo is present, the escalator logo and escalator environment status are pushed to the escalator control service, and the cache of the escalator environment status detection logo is set to not exist. The purpose of this is to reduce the interaction of video analysis data to avoid unnecessary waste of network bandwidth.

[0030] 3. Similarly, when it is analyzed that a certain escalator environmental alarm occurs in the escalator area, and the cache of the escalator environmental alarm status detection is normal, the escalator logo and the escalator environmental alarm status are pushed to the escalator control service, and the cache of the escalator environmental alarm status detection logo is set to alarm. When it is analyzed that there is no environmental alarm in the escalator area, and the cache of the escalator environmental alarm status detection logo is an alarm, the escalator logo and the escalator environmental alarm status are pushed to the escalator control service, and the cache of the escalator environmental alarm status detection logo is set to normal. The purpose of this is the same as above.

[0031] 4. The escalator control service mainly relies on the ISCS system and the basic data of the video surveillance system, including escalators, cameras, etc., to associate the escalators and video data of the station, and use the intelligent analysis results of the video data to control the safety of the escalators. The service is mainly divided into the following components: ①Configuration management components This component is used to manage the configuration information of all escalators and cameras in the station involved in the system. The component provides a configuration information management interface for station staff to add, delete, modify, and query configurations to cope with changes in equipment information caused by the transformation of station-related systems.

[0032] ②Database components This component is used to persistently store system configuration, escalator environment status, escalator environment alarm, escalator operation status, command issuance operation information, etc. It provides function interfaces to add, delete, modify, and query configuration information, and add new operations to escalator environment status, escalator environment alarm, escalator operation status, and command issuance operations. It records operation events to facilitate subsequent tracing of important equipment actions.

[0033] The database structure managed by this component: The basic configuration information includes: Escalator information, including escalator number, escalator location, and escalator name; Camera information, including camera number, camera location, and escalator number; Video analysis information includes: Escalator environment status, including escalator number, escalator environment status, escalator environment status description, and occurrence time; Escalator environment alarm, including escalator number, escalator environment alarm status, escalator environment alarm description, and occurrence time; Comprehensive monitoring information includes: Escalator operation status information, including escalator number, operation status, and monitoring time; Escalator event information, including escalator number, event description, and occurrence; ③Data interface components This component is used to provide a lightweight REST service interface for the video analysis service to report the escalator environment status and escalator environment alarm information. When the component receives the escalator environment status or escalator environment alarm message, it parses and filters the message. If it conforms to the escalator environment status or escalator environment alarm information protocol structure, the information is saved to the database through the database component. Then it is pushed to the control logic component for logical deduction of whether the escalator can or needs to be controlled.

[0034] ④SCADA operation components This component is used to issue the control commands of the escalator calculated by the control logic component to control the escalator accordingly. It also pushes the escalator environmental alarm event information to the integrated monitoring platform, which executes the corresponding event emergency plan process.

[0035] ⑤Control logic components This component is used to conduct a comprehensive logical analysis of the escalator environment status or escalator environment alarm information pushed from the data interface component and the escalator operation status information monitored at the same time to determine whether it is necessary to issue a control command to the escalator or push the escalator environment alarm information. If a control command needs to be issued, the control command is issued through the SCADA operation component, and the operation record is saved to the database through the database component at the same time. If the escalator environment alarm event information needs to be pushed, the escalator environment alarm event information is pushed through the SCADA operation component.

[0036] The core logic of this component is: When it is necessary to stop an escalator, the environmental status of the escalator is determined. If the environmental status of the escalator is that there are people or objects stuck, no stop control command is issued; otherwise, a control command is issued.

[0037] When it is necessary to start and control an escalator, the environmental state of the escalator is determined. If the environmental state of the escalator is that there are people or objects stuck, the stop control command is not issued; otherwise, the control command is issued.

[0038] When the environmental alarm status of the escalator is described as someone falling on the escalator, the operating status of the escalator in the comprehensive monitoring is judged at this time. If the escalator is in operation, a control command to stop the escalator is issued; otherwise, no control command is issued.

[0039] When the environmental alarm status of the escalator is described as escalator clamping, the operating status of the escalator in the comprehensive monitoring is judged at this time. If the escalator is in operation, the escalator stop control command is issued and the escalator clamping event information is pushed; otherwise, only the escalator clamping event information is pushed, and no control command is issued.

[0040] When the environmental alarm status of the escalator is described as an escalator jam, the operating status of the escalator in the comprehensive monitoring is determined. If the escalator is in operation, a stop control command is issued to control the escalator, and the escalator jam event information is pushed; otherwise, only the escalator jam event information is pushed, and no control command is issued.

[0041] When the escalator's environmental alarm status is described as smoke on the escalator, the running status of the escalator in the comprehensive monitoring is determined at this time. If the escalator is running, a stop control command is issued to control the escalator, and the escalator smoke event information is pushed; otherwise, only the escalator smoke event information is pushed, and no control command is issued.

[0042] When the escalator environmental alarm status is described as a fire on the escalator, the operating status of the escalator in the integrated monitoring is determined. If the escalator is in operation, a stop control command is issued to control the escalator, and the escalator fire event information is pushed; otherwise, only the escalator fire event information is pushed, and no control command is issued.

[0043] 4. Display Layer The display layer mainly includes ISCS workstation and escalator control service terminal. They mainly complete the following tasks: 1. ISCS workstation is used to display the status of each escalator and the maintenance of the video surveillance system. It assists in viewing the video recordings of each escalator video surveillance point, making it convenient for station staff to confirm the environmental status of each escalator. The emergency plan process for escalator environmental alarm events can also be executed on this workstation.

[0044] 2. The escalator control service terminal is mainly provided for maintenance personnel to use. It can maintain system basic configuration information, preview escalator environment status information, preview escalator environment alarm information, preview escalator operation status information and preview escalator event information.

[0045] This embodiment provides solutions to the following three problems: 1. Solve the problem that daily switch stations need to manually confirm and manually open and close escalators, and the efficiency of switch stations is limited. Since there are safety issues in opening and closing escalators, such as people or objects on the escalator, if the escalator is opened at this time, it may cause injuries, objects jamming, escalator damage, etc. Therefore, when the subway switch station is currently open, it is necessary to manually go to each escalator to confirm safety on site, and then manually open or close the escalator. Although this enhances safety, it greatly reduces the efficiency of the switch station and wastes human resources. The system analyzes the escalator environmental status in real time through intelligent video analysis, and pushes the monitoring results of the escalator's environmental status (whether there are people, objects, etc.) to the station escalator control service. The escalator control service comprehensively judges whether the environmental status and real-time status conflict with the upcoming control operation based on the real-time status of the escalator on the comprehensive monitoring, such as the environmental status of people on the escalator and the operation of opening the escalator. If there is no conflict, automatic remote control can be performed. If there is a conflict, the execution is suspended, and the environmental status changes are monitored synchronously until the conflict disappears and then the control is executed. This can save most of the time wasted on the way to the escalator and improve control efficiency.

[0046] Second, solve the problem that the escalator control method is on-site manual control and the emergency response capability is limited. When an emergency event related to escalators occurs in the current station, the information is transmitted from person to person until the staff arrives at the scene to handle the event. In this way, the event has often become an established fact and the serious consequences cannot be reversed. This person-to-person information transmission method is obviously extremely inefficient, and relying on on-site control cannot meet the basic requirements of emergency response. The system analyzes the escalator environmental alarm in real time through intelligent video analysis, and pushes the monitoring results of the escalator environmental alarm (whether someone falls, whether someone goes against the flow, whether the escalator is clamped, whether there is a jam, whether there is smoke, whether there is a flame, etc.) to the station escalator control service. The escalator control service comprehensively judges whether the environmental alarm and real-time status need to be automatically executed according to the real-time status of the escalator on the comprehensive monitoring, such as the alarm status of someone falling on the escalator and the real-time status of the escalator going up. In this state, the escalator emergency stop operation needs to be automatically executed. This information transmission time based on computers and networks is almost within seconds, which greatly improves the station's response capability to escalator emergencies.

[0047] 3. Solve the problem of insufficient escalator environmental information and lack of safety guarantee for remote control. Although the current escalator technology supports remote control, due to the key control of subway operation on safety, remote control is generally not allowed under normal circumstances. The reason is that there is very little escalator environmental information that can be obtained remotely at present, only some status information (such as running status, running direction, running speed, etc.), but no key information (whether there are people, whether there are objects, whether someone falls, whether there are objects stuck, etc.). As a result, the remote control of the escalator cannot be guaranteed. The system uses the most advanced and widely used video analysis algorithm in China, with an analysis accuracy of more than 99%. The environmental status and alarm information of the analyzed escalator have extremely high stability and reliability. In addition, the background service of the system will collect the intelligent sensing points of the escalator at the same time. The points provided by major escalator manufacturers are in line with international standards and represent the mechanical status of the escalator. Based on countless application practices at home and abroad, the stability and reliability are also extremely high. The remote safety control system of the escalator established based on these two types of highly reliable information can fully serve as the basis for the safety guarantee of the remote control of the escalator.

[0048] See also Figure 3 Taking a subway station application as an example, the escalator control service is deployed on the escalator control server, the database service is deployed on the database server, and the video analysis service is deployed on the video analysis server. The fusion interface is deployed on the escalator control service terminal for station operators to use. The escalator control service terminal is mainly provided for maintenance personnel to maintain system basic configuration information, preview escalator environment status information, preview escalator environment alarm information, preview escalator operation status information, and preview escalator event information.

[0049] Embodiment 2: A rail transit escalator remote safety control system can implement a rail transit escalator remote safety control method described in Embodiment 1, comprising: Data acquisition module: obtain the latest environmental status of the escalator; Data analysis module: determines whether there are people or objects stranded based on the latest environmental status of the escalator; Control execution module: in response to the latest environmental status of the escalator indicating that there is no person or object trapped, a control command is sent to the escalator control box to start and stop the escalator, otherwise no control command is sent.

[0050] Embodiment three: The embodiment of the present invention further provides a rail transit escalator remote safety control device, which can implement the rail transit escalator remote safety control method described in the first embodiment, including a processor and a storage medium; The storage medium is used to store instructions; The processor is used to operate according to the instructions to perform the steps of the following method: Get the latest environmental status of the escalator; Determine whether there are people or objects trapped based on the latest environmental status of the escalator; In response to the latest environmental status of the escalator indicating that no person or article is stranded, a control command is sent to the escalator control box to start and stop the escalator, otherwise no control command is sent.

[0051] Embodiment 4: The embodiment of the present invention further provides a computer-readable storage medium, which can implement the rail transit escalator remote safety control method described in the first embodiment, and stores a computer program thereon, which implements the steps of the following method when the program is executed by a processor: Get the latest environmental status of the escalator; Determine whether there are people or objects trapped based on the latest environmental status of the escalator; In response to the latest environmental status of the escalator indicating that no person or article is stranded, a control command is sent to the escalator control box to start and stop the escalator, otherwise no control command is sent.

[0052] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

[0053] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0054] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the process in the flowchart. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0055] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0056] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A rail transit escalator remote safety control method, characterized in that: Performed by escalator control services, including: Get the latest environmental status of the escalator; Determine whether there are people or objects trapped based on the latest environmental status of the escalator; In response to the latest environmental status of the escalator indicating that no person or article is stranded, a control command is sent to the escalator control box to start and stop the escalator, otherwise no control command is sent.

2. The rail transit escalator remote safety control method according to claim 1 is characterized in that: The latest environmental status is obtained by analyzing and counting the video data captured by the monitoring camera on the escalator through the video analysis service.

3. The rail transit escalator remote safety control method according to claim 2 is characterized in that: The video analysis service uses candidate region-based target detection technology and OpenPose's human pose estimation technology to identify and locate people in video data, and uses the Faster-RCNN network to identify and locate specific categories of objects.

4. The rail transit escalator remote safety control method according to claim 2 is characterized in that: When the video analysis service detects that the latest environmental status of the escalator is inconsistent with the cache of the escalator environmental status detection, the escalator logo and the latest environmental status are pushed to the escalator control service, and the cache setting of the escalator environmental status detection logo is changed at the same time.

5. The rail transit escalator remote safety control method according to claim 2 is characterized in that: The video analysis service can also detect the environmental alarm status of the escalator, and in response to the latest environmental alarm status of the escalator being inconsistent with the cache of the escalator environmental alarm status detection, push the escalator identifier and the latest environmental alarm status to the escalator control service, and at the same time change the cache setting of the escalator environmental alarm status detection identifier.

6. The rail transit escalator remote safety control method according to claim 5 is characterized in that: The environmental alarm state includes a normal state and an abnormal state, wherein the abnormal state includes someone falling down on the escalator, someone being caught in the escalator, something being stuck in the escalator, smoke in the escalator and flame in the escalator.

7. The rail transit escalator remote safety control method according to claim 6 is characterized in that: When the escalator control service receives the latest environmental alarm status provided by the video analysis service as an abnormal state, it determines the operating status of the escalator at this time: if the escalator is in operation, a control command to stop the escalator is issued; otherwise, no control command is issued, and only the latest environmental alarm status information is pushed to the outside.

8. A rail transit escalator remote safety control system, characterized in that: include: Data acquisition module: obtain the latest environmental status of the escalator; Data analysis module: determines whether there are people or objects stranded based on the latest environmental status of the escalator; Control execution module: in response to the latest environmental status of the escalator, when there is no person or object stranded, the control command is sent to the escalator control box to start and stop the escalator, otherwise no control command is sent.

9. A remote safety control device for rail transit escalator, characterized in that: including processor and storage medium; The storage medium is used to store instructions; The processor is used to operate according to the instructions to execute the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method described in any one of claims 1 to 7 are implemented.

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