KR100916960B1 - Monitoring system in railway station - Google Patents

Abstract

Platform monitoring system is disclosed. The platform monitoring system of the present invention includes: an information collection unit including at least one camera collecting image information on a platform monitoring area including a train track, and at least one sensor collecting detection information on a platform monitoring area; Based on the image information and detection information transmitted from the information collection unit, a risk judgment unit for determining whether a dangerous situation has occurred in the platform and a risk level of the dangerous situation, and generates a risk message corresponding to the risk level of the dangerous situation determined by the risk determination unit. An information processor having a signal generator; And an information providing unit which provides a dangerous message transmitted from the information processing unit to a train operator in association with an image of a dangerous situation. According to the present invention, it is possible to promptly and accurately analyze and determine a dangerous situation in a platform, and guide a train operator to deal quickly and accurately without embarrassment when a dangerous situation occurs.

Subway, platform, monitoring, camera, sensor, danger message, visual

Description

Platform monitoring system {MONITORING SYSTEM IN RAILWAY STATION}

The present invention relates to a platform monitoring system, and more particularly, the platform monitoring to collect the video information and the detection information for the platform monitoring area to provide a dangerous message with a video of the dangerous situation to the train operator when the dangerous situation occurs It is about the system.

Passenger safety is the most important task in the railway sector, and despite the intensive management of railway safety, there are still many personal and physical damages due to train line crash, fire accidents, and door-to-door accidents that occur frequently during commute. This is emerging as the most urgent problem to be solved in the railway sector.

Recently, with the development of information technology (IT), an application system using a closed circuit TV or various types of vision sensors in a railway environment has been attempted. The subway closed circuit TV is currently installed and operated in the platform or passenger area of each station for the purpose of checking train operation and monitoring passenger movement and getting on and off.It is also used for maintenance of railway infrastructure including vehicles and track conditions. Various types of camera sensors are applied.

Whereas conventional closed-circuit TVs simply passively transmit video information to the driver or local command office, they can detect the location and movement of people or other obstacles and intelligently determine the dangerous situation and inform the relevant workers to respond quickly. It was necessary to try a form.

As such, the conventional monitoring system is simply installed by analogue closed circuit TV in the place to be monitored, so that the worker must monitor the situation that is displayed on the screen (sequentially showing several divided screens according to the number of CCTVs). And there is a problem that it is difficult to identify the correct situation and prompt response.

On the other hand, in recent years, the installation of screen doors has been expanded in order to prevent passengers from crashing in advance, but it is economically expensive to install on all platforms, especially in the case of ground platforms. There is a problem that increases the passenger's frustration by blocking the.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lift monitoring system capable of prompt and accurate analysis and determination of a dangerous situation in a platform, and to guide a train operator to deal quickly and accurately without embarrassment when a dangerous situation occurs. .

The object is, according to the present invention, an information collecting unit having at least one camera for collecting image information for the platform monitoring area including a train track, and at least one sensor for collecting detection information for the platform monitoring area ; A risk determination unit that determines whether a dangerous situation occurs in the platform and a risk level of the dangerous situation based on the image information and detection information transmitted from the information collection unit, and responds to the risk of the dangerous situation determined by the risk determination unit; An information processing unit having a signal generation unit generating a dangerous message to be generated; And an information providing unit providing the dangerous message transmitted from the information processing unit to a train operator along with an image of the dangerous situation.

In the present invention, the signal generation unit may generate a corresponding message corresponding to the progress of the dangerous situation, the information providing unit may provide the corresponding response message to the train operator.

The signal generation unit may generate a train stop signal for braking a train to enter a platform in which the dangerous situation occurs.

The information providing unit, the display unit for displaying the dangerous message, the response message and the image of the dangerous situation to the train operator; A wired communication unit configured to receive the dangerous message, the countermeasure message, and the image of the dangerous situation transmitted from the information processing unit, and transmit the image on the display unit via wired communication; And a wireless communication unit configured to receive the dangerous message, the countermeasure message, and the image of the dangerous situation transmitted from the information processing unit, and transmit the image on the display unit through wireless communication.

The display unit may include at least one of a liquid crystal display (LCD) and a personal digital assistant (PDA).

The display unit may be provided to at least one of a general control room, a station room, a train driver, or a station attendant in a platform.

The wired communication unit transmits the dangerous message, the countermeasure message, and the image of the dangerous situation to a display unit provided to the general control room and the station office, and the wireless communication unit is provided to the train driver and the station attendant in the platform. The dangerous message, the countermeasure message, and an image of the dangerous situation may be transmitted to the provided display unit.

The at least one camera is a stereo camera, and the risk determining unit is a region in which an object falls down in the platform monitoring area, which may interfere with normal train operation, based on the image information obtained by the stereo camera. An object detection module for determining whether an object falls within the set danger area; And an object recognition module that determines whether an object fallen in the danger area is a dangerous object that impedes normal train operation based on a preset criterion, based on the 3D image coordinate information of the object by the stereo camera. have.

The object recognition module may calculate a size of an object falling in the danger area based on three-dimensional image coordinate information of the object by the stereo camera, and determine the dangerous object if the calculated size is greater than or equal to a set size. have.

The risk determination unit may further include an object tracking module for assigning a unique identification code to the fallen object and tracking the movement of the object to which the identification code is assigned, when the fallen object is determined to be the dangerous object. have.

When the object tracking module detects a movement of an object to which the identification code is assigned, the object tracking module continues tracking the object and determines that the object is out of the dangerous area during tracking of the object. You can delete it.

If the object tracking module does not detect the movement of the object to which the identification code is assigned, if it is determined that the object to which the identification code is assigned does not exist in the dangerous area by comparing the current image with a pre-stored background image, The assigned identification code can be deleted.

The object tracking module may track the movement of the object to which the identification code is assigned based on the image difference between the current frame and the previous frame of the image information obtained by the stereo camera.

The object detecting module may determine whether an object falls within the danger area based on an image difference between a current frame and a previous frame of the image information acquired by the stereo camera.

The at least one camera is a thermal camera, and the at least one sensor may be at least one of an ultrasonic sensor, a microwave sensor, a laser sensor, or an infrared sensor.

The information processing unit may further include an accident history storage unit for storing an accident history resulting from occurrence of a dangerous situation in a platform, and the risk determination unit may refer to statistical data on an accident history stored in the accident history storage unit to determine the risk situation. The risk can be judged.

An image may be transmitted to the information providing unit only when a dangerous situation occurs in the information processing unit and the platform.

The present invention collects image information and detection information on the platform monitoring area and provides a dangerous message to the train operator when the dangerous situation occurs along with the image of the dangerous situation, so that a quick and accurate analysis and determination of the dangerous situation in the platform can be achieved. Possible and can guide train operations personnel to respond quickly and accurately in case of danger.

In addition, the present invention, by providing a dangerous message and a response message along with the image of the dangerous situation, it is possible to guide the train operation personnel to respond more quickly and accurately when the dangerous situation occurs.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 13.

1 is an overall configuration diagram of a platform monitoring system according to an embodiment of the present invention, Figure 2 is a view showing the installation position of the camera shown in Figure 1, Figure 3 is an installation position of the sensor shown in Figure 1 It is a figure which shows.

Referring to FIG. 1, the platform monitoring system according to the present embodiment includes an information collection unit 100 collecting image information and detection information on a platform monitoring area including a train track, and transmitting from the information collection unit 100. The information processing unit 200 determines a risk situation based on the image information and the detection information to be provided, and the information providing unit 300 to inform the train operator of the dangerous situation determined by the information processing unit 200.

The information collecting unit 100 collects information on the track crash object and information on the platform safety situation. Here, the information about the track falling object is, whether the object falls on the train tracks, whether the object falls on the train tracks is a small object that does not interfere with the normal operation of the train, and the large size that impedes the normal operation of the train including people. Information on whether or not it is an object. In addition, the information on the platform safety situation, including information about getting on and off the situation, fire situation, safety line compliance, whether the security zone invaded.

1 to 3, the information collecting unit 100 may collect at least one camera 110 collecting image information on a platform monitoring area including a train track, and detection information on a platform monitoring area. At least one sensor 120 is provided.

The camera 110 according to the present embodiment includes a stereo camera and a thermal camera. However, the present invention is not limited thereto, and the camera 110 may be configured using a general mono camera. However, since the stereo camera and the thermal camera have the following advantages over the mono camera, the camera 110 of the present invention is preferably composed of a stereo camera and / or a thermal camera.

Since a stereo camera can obtain three-dimensional image coordinates for each pixel of an acquired image, unlike a general mono camera, the platform monitoring region can be defined as an arbitrary three-dimensional space. Accordingly, the stereo camera can collect image information capable of estimating the type and size of the track fall object.

On the other hand, the thermal camera can collect image information useful for determining a fire situation in a landing, and particularly has an advantage of excellent human body recognition.

Referring to FIG. 2, the camera 110 may photograph all of the track area, the safety line area, and the boarding area area, and is installed at a position that does not affect passengers getting on and off at all. On the other hand, a plurality of cameras 110 may be installed at predetermined intervals along the track of the train in order to sufficiently monitor the entire platform situation. When a plurality of cameras 110 are installed in the landing, the camera 110 may be installed separately for wide range photographing and local range photographing.

The camera 110 transmits the image information on the track fall object and the image information on the platform safety situation to the information processing unit 200.

The sensor 120 of the present invention may be composed of various types of sensors such as an ultrasonic sensor, a microwave sensor, a laser sensor, and an infrared sensor. However, in view of the fact that the sensor 120 of the present embodiment requires a large number of sensors in order to detect the entire track, the sensor 120 is composed of an infrared sensor having low installation cost, easy installation, and no problem in operating in the subway environment. .

Referring to FIG. 3, a plurality of sensors 120 are installed at predetermined intervals along the train track at the lower end of the platform so that the entire track can be detected.

The sensor 120 mainly transmits the detection information on the track fall object to the information processing unit 200.

 Referring to FIG. 1, the information processor 200 determines whether a dangerous situation occurs in a platform and a risk level of a dangerous situation based on image information and detection information transmitted from the information collection unit 100. And a signal generation unit 220 for generating a risk message corresponding to the risk of the dangerous situation determined by the risk determination unit 210. The information processing unit 200 is installed in the working room so that it can be operated by the operator of the working room.

Types of dangerous situations in the platform include situations such as accidents of large objects including people in the track area, fire accidents, door-to-door accidents when getting on and off passengers, and accidents involving safety lines and security areas.

The risk determination unit 210 analyzes image information on the platform monitoring area collected by the camera 110 and detection information on the platform monitoring area collected by the sensor 120 according to a preset algorithm and based on the detected information. Use this to determine whether a dangerous situation has occurred and how dangerous it is.

For example, the risk determination unit 210 may determine a dangerous situation caused by the track fall object based on the 3D image coordinate information collected by the stereo camera (specifically, determine the 3D image coordinates of the track fall object). Estimating the size or shape of the track fall object and determining the risk situation based on the estimated size or shape), and the risk situation due to the fire accident based on the image information collected by the thermal camera. . In addition, the risk determination unit 210 may utilize detection information collected by the sensor 120 to determine a dangerous situation caused by the track fall object.

The risk determination unit 210 determines the 'risk of the dangerous situation' based on the image information and the detection information transmitted from the information collecting unit 100, where the 'risk of the dangerous situation' is the type of the dangerous situation, the platform It is determined by considering the existence of trains within the platform, the presence of trains entering the platform, the structural characteristics of the station where the dangerous situation occurred, and the time of the dangerous situation.

Referring to FIGS. 4 to 6, as an example, a specific configuration module of the risk determination unit for determining a risk situation by the track falling object based on image information obtained by a camera constituted by a stereo camera will be described. Let's do it.

FIG. 4 is a view illustrating a boarding area monitoring area photographed by the camera illustrated in FIG. 1, FIG. 5 is a diagram illustrating an example of the risk determination unit illustrated in FIG. 1, and FIG. 6 is a stereo camera. FIG. 4 illustrates a method of obtaining 3D image coordinate information.

Referring to FIG. 4, a camera configured as a stereo camera collects image information by setting a train area 12 and a danger area 14 in the platform monitoring area 10. That is, the boarding point monitoring area 10 is a train area 12 into which a train enters, and a danger area 14 which is set in advance as an area in which an object may fall and interfere with normal train operation. This is set in advance. In this case, the 'hazardous area 14' specifically refers to an area around a train track.

Referring to FIG. 5, the risk determination unit 210 includes an object in a danger area 14 that is preset as an area where an object may fall and interfere with normal train operation based on image information obtained by a stereo camera. The object detection module 212 for determining whether the object falls, and the object recognition module 214 for determining whether the object falling in the danger area 14 is a dangerous object based on the 3D image coordinate information of the object by the stereo camera. ). Here, the "dangerous object" refers to an object that interferes with normal train operation among objects that have fallen in the danger area 14 and includes a person who has fallen in the danger area 14.

The object detection module 212 determines whether the object falls in the danger area 14 by detecting a movement in the danger area 14 based on an image difference between the current frame and the previous frame of the image information acquired by the stereo camera. do. In the present embodiment, the stereo camera photographs the platform monitoring area 10 at about 30 frames per second. The object detection module 212 analyzes image information transmitted from the stereo camera in units of frames. That is, the object detection module 212 detects the movement of the object into the danger area 14 outside the danger area 14 by analyzing an image difference between the current frame and the previous frame of the image information. As such, when the movement of the object into the danger area 14 is detected outside the danger area 14, the object detection module 212 determines that the object has fallen in the danger area 14.

On the other hand, objects that have fallen in the danger zone 14 are dangerous objects that suspend normal train operations, such as a person who has fallen off the platform in a platform for suicide or inadvertently or a large object having a large size, causing a dangerous situation, Small objects such as beverage cans can be classified as small objects that do not interfere with train operation even if they fall near train tracks. In other words, even if it is determined that the object has fallen in the danger area 14 by the object detection module 212, it cannot be assumed that a dangerous situation has occurred uniformly.

Accordingly, in the present invention, when it is determined that an object has fallen in the dangerous area 14, an object that has fallen into the dangerous area 14 through the object recognition module 214 interferes with normal train operation. Determine whether it is a small object that does not interfere with train operation. In detail, the object recognition module 214 determines whether an object that has fallen in the dangerous area 14 is a dangerous object based on three-dimensional image coordinate information of the object by the stereo camera.

A method of obtaining 3D image coordinate information by a stereo camera will be described with reference to FIG. 6. Due to the characteristics of the stereo camera, the positions of the images formed on the left and right cameras with respect to one object point (x, y, z) are respectively P _l (x ' _l , y' _l ) and P _r (x ' _r , y' _r). ) Are different. Given the baseline b at which the camera is located, and knowing the focal length f of the lens, the depth information Z of the object is represented by b * f / (x ' _l -x' _r ) by the triangular ratio. It is possible. That is, the depth information Z of the object is proportional to the distance b between the lenses of the left camera Cl and the right camera Cr and the focal length f of the lens, and the binocular difference x ' _l -x' _r ) inversely proportional to the value.

As such, since a stereo camera can know depth information of an object to be photographed unlike a general mono camera, a monitoring area can be defined as an arbitrary three-dimensional space, thereby obtaining three-dimensional image coordinate information about an object in the monitoring area. It can be.

Using the characteristics of the stereo camera, the object recognition module 214 calculates the size of the object fallen in the danger area 14 based on the 3D image coordinate information of the object by the stereo camera. If the size of the object that falls in the danger zone 14 is greater than or equal to the set size, it is determined as a dangerous object that impedes train operation. At this time, the setting size is set in consideration of the possibility of affecting the normal operation of the train, it is preferable to set the size higher than the train track.

On the other hand, since the object recognition module 214 can recognize the shape of the object falling in the danger area 14 based on the three-dimensional image coordinate information of the object by the stereo camera, the object that has fallen in the danger area 14. It may be configured to determine whether the dangerous object based on the shape of. For example, a method of determining whether the object is a dangerous object may be applied by storing information on the shape of a person in advance and comparing it with the object that has fallen in the dangerous area 14.

Referring to FIG. 5, the risk determination unit 210 further includes an object tracking module 216 for tracking the movement of an object determined as a dangerous object.

If the object tracking module 216 determines that the object dropped to the dangerous area 14 by the object recognition module 214 is a dangerous object, the object tracking module 216 assigns a unique identification code to the dangerous object and Track the movement. At this time, 'Identification code' means that a dangerous situation occurred in the platform. The object tracking module 216 uses an image processing technique that analyzes an image difference between a current frame and a previous frame of image information acquired by a stereo camera to track the movement of an object to which an identification code is assigned.

The object tracking module 216 deletes the assigned identification code if the object to which the identification code is assigned leaves the danger area 14 as a result of the motion tracking. At this time, 'deletion of identification code' means that the dangerous situation in the platform has been released.

On the other hand, the object tracking module 216 compares the current image with the pre-stored background image when the movement tracking result does not detect the movement of the object to which the identification code is assigned. This is because even if there is no dangerous object that falls in the danger area 14, the object detection module 212 and the object recognition module 214 fall in the danger area 14 due to a sudden change in brightness around the stereo camera. It is to screen out the case of wrong decision. That is, the object tracking module 216 deletes the assigned identification code if it is determined that there is no object assigned to the identification code in the dangerous area 14 by comparing the current image with the pre-stored background image.

As described above, the present invention includes an object tracking module 216 for tracking a dangerous object, so that it is possible to determine whether the dangerous situation is released, as well as that of the object detection module 212 and the object recognition module 214. Correction errors can be corrected. Accordingly, the present invention can increase the reliability of the entire system, it is possible to prevent the situation that interferes with the smooth operation of the train by wrong judgment.

Meanwhile, the object detection module 212, the object recognition module 214, and the object tracking module 216 constituting the risk determination unit 210 may be implemented as a camera module together with the camera 110 installed in the platform. Alternatively, it may be implemented in an image processing server that is separately installed in the history office.

Referring to FIGS. 7 to 9, the method of determining the risk determination unit illustrated in FIG. 5 will be described.

FIG. 7 is a flowchart for describing a method of determining a risk determination unit illustrated in FIG. 5, FIG. 8 is a flowchart for explaining in more detail the step S140 shown in FIG. 7, and FIG. 9 is a step S150 shown in FIG. 7. Is a flowchart for explaining in more detail.

Referring to FIG. 7, the method of determining the risk determination unit 210 illustrated in FIG. 5 may include obtaining image information (S110), determining whether an object falls in the dangerous area 14 (S130), A step (S140) of determining whether a dangerous object, a step (S150) of tracking a dangerous object, and a step of outputting a determination result (S160) will be described as follows.

First, the stereo camera acquires image information about the platform monitoring area 10 including the danger area 14 (S110).

Next, the risk determining unit 210 determines whether the object falls in the danger area 14 based on the image difference between the current frame and the previous frame of the image information acquired by the stereo camera (S130).

If it is determined that the object has fallen in the danger area 14, the risk determination unit 210 determines whether the object that has fallen in the danger area 14 is a dangerous object based on the 3D image coordinate information of the object by the stereo camera. It is determined (S140).

Referring to FIG. 8, step S140 of determining whether a dangerous object is present will be described in detail. First, the risk determination unit 210 calculates the size of the object dropped in the danger area 14 based on the 3D image coordinate information of the object by the stereo camera (S141). Next, the risk determination unit 210 compares the calculated size with a set size, and if the calculated size is greater than or equal to the set size, determines the fallen object as a dangerous object (S142).

If the object fallen in the dangerous area 14 is determined to be a dangerous object, the risk determination unit 210 assigns a unique identification code to the fallen object and tracks its movement (S150). At this time, the risk determination unit 210 tracks the movement of the object to which the identification code is assigned by analyzing the image difference between the current frame and the previous frame of the image information.

Referring to FIG. 9, the step S150 of tracking the dangerous object will be described in detail. First, if the object dropped in the danger area 14 is determined to be a dangerous object, the risk determination unit 210 assigns a unique identification code to the fallen object (S151), and the image between the current frame and the previous frame of the image information. By analyzing the difference, the movement of the dangerous object to which the identification code is assigned is detected (S152).

If the movement of the dangerous object to which the identification code is assigned is detected, in order to confirm whether the dangerous situation is released, the risk determination unit 210 continues tracking the dangerous object (S153), and the dangerous object is in the dangerous area. It is determined whether or not the departure (14) (S154). If it is determined that the dangerous object is out of the dangerous area 14, the risk determination unit 210 deletes the assigned identification code (S155).

On the other hand, if the movement of the dangerous object to which the identification code is assigned is not detected, in order to correct a judgment error caused by a sudden change in brightness around the stereo camera, the risk determination unit 210 displays the current image and the pre-stored background image. In comparison (S156), the absence of the dangerous object in the dangerous area 14 is determined (S157). If it is determined that there is no dangerous object in the dangerous area 14, the risk determination unit 210 deletes the assigned identification code (S158).

Finally, the risk determination unit 210 outputs the determination result and the tracking result of the dangerous object (S160).

Referring to FIG. 1, the signal generation unit 220 generates a risk message corresponding to a risk of a risk situation determined by the risk determination unit 210, and the risk message is implemented in the form of a voice message or a text message. do.

In addition, the signal generation unit 220 further generates a response message corresponding to the progress of the dangerous situation determined by the risk determination unit 210. 'Measurement message' is a guide information on the actions taken by the train operation personnel in order to quickly and accurately respond to the dangerous situation occurred by the train operation personnel in the event of a dangerous situation, it may be implemented as visual information or audio information. Here, the "train operator" includes an operator of the general control room, an operator of the station office, a train driver and a station employee in the platform. On the other hand, according to the progress of the dangerous situation, the details of the specific response plan message for each train operation personnel will be described later.

As such, the present invention provides an appropriate response message to each train operator in case of a dangerous situation according to the type of dangerous situation, the state of progress, and the nature of the work of each train operator, so that each train operator can not be embarrassed when a dangerous situation occurs. Helps you take action quickly and accurately.

In addition, the signal generator 220 further generates a train stop signal for braking the train to enter the platform in which the dangerous situation occurs. The train stop signal may be divided into a signal for emergency braking of the train and a signal for normal braking of the train based on a distance from which the train to enter the elevating platform is separated from the platform. At this time, the train stop signal is transmitted to the train to enter the platform where the dangerous situation occurs through the train track, and in the case of the train stop signal for emergency braking, it is set to automatically stop the train to enter the platform.

FIG. 10 is a configuration diagram of the information providing unit shown in FIG. 1.

1 and 10, the information provider 300 provides a dangerous message and a countermeasure message transmitted from the information processor 200 to a train operator in association with an image of a dangerous situation. In this case, the information processing unit 200 preferably transmits an image to the information providing unit 300 only when a dangerous situation in the platform occurs in order to increase the awareness of the train operator concerned about the occurrence of the dangerous situation.

Referring to FIG. 10, the information providing unit 300 may include a display unit 330 for displaying a dangerous message and a countermeasure message together with an image of a dangerous situation to a train operator, and a risk transmitted from the information processing unit 200. Wired communication unit 310 for receiving a message, a response message and an image of the dangerous image and transmits the image to the display unit 330 by wire communication, and a dangerous message, a response message and a dangerous situation transmitted from the information processing unit 200. A wireless communication unit 320 for receiving an image for the transmission to the display unit 330 by wireless communication is provided.

The display unit 330 is a means for visually and / or audibly displaying a dangerous message, a countermeasure message, and an image of a dangerous situation to a train operator, and includes a liquid crystal display (LCD) and personal portable information. The terminal may be implemented as a personal digital assistant (PDA).

The display unit 330 is provided to the general control room, the station office, the train driver and the station attendant in the platform, respectively, in the case of the station attendant working in the platform considering the mobility of the display unit 330 implemented as a personal portable information terminal (PDA) It is preferable to provide.

In the present embodiment, the wired communication unit 310 transmits a dangerous message, a countermeasure message, and an image of a dangerous situation to the display unit 330 provided in the general control room and the work room. That is, the display unit 330 provided to the general control room and the station office receives the image of the danger message, the countermeasure message and the dangerous situation by wire communication, which uses a wired communication method that has higher reliability than the wireless communication method. This is for more stable signal transmission. However, the present invention is not limited thereto, and the display unit 330 provided in the general control room and the station office may be configured to be connected by a wireless communication method.

In this embodiment, the wireless communication unit 320 transmits an image of a dangerous message, a countermeasure message, and a dangerous situation to the display unit 330 provided to the train driver and the station attendant in the platform. That is, the display unit 330 provided to the train driver and the station attendant in the platform receives the image of the danger message, the countermeasure message and the dangerous situation by wireless communication. This is because the method is suitable.

Referring to FIG. 1, the information processing unit 200 further includes an accident history storage unit 230 that stores an accident history due to occurrence of a dangerous situation in a platform.

The accident history storage unit 230 stores a history of accidents of large and small occurred in the platform and builds them as statistical data. As described above, the statistical data on the accident history stored in the accident history storage unit 230 is used as a reference for the risk determination unit 210 to determine the risk of the danger situation when a danger situation occurs in the platform at a later time. Risk of damage can be improved.

With reference to Figures 11 to 13, the specific content of the corresponding response message provided for each train operating personnel through the information providing unit 300 according to the progress of the dangerous situation will be described.

11 is a flowchart illustrating an example of a response message provided to the general control room when a dangerous situation occurs in the platform, and FIG. 12 is a flowchart illustrating an example of a response message provided to a train company when a dangerous situation occurs in the platform. FIG. 13 is a flowchart illustrating an example of a response message provided to a station attendant when a dangerous situation occurs in a platform.

Referring to FIG. 11, the information processing unit 200 determines a dangerous situation in a platform based on image information and detection information transmitted from the information collecting unit 100, and if it is determined that a dangerous situation has occurred, a dangerous situation occurs and a danger occurs. The risk message informing the risk of the situation is transmitted to the information providing unit 300 installed in the general control room together with the image of the dangerous situation. Accordingly, the integrated control room can recognize the risk situation and the risk of the dangerous situation through the information providing unit 300.

The information processing unit 200 continuously transmits the corresponding message corresponding to the progress state of the dangerous situation to the information providing unit 300 installed in the general control room.

More specifically, the information processing unit 200 guides measures such as emergency stop orders, lifesavings, and subsequent train operation control of trains entering the platform along with an order for dispatch of station attendant and control emergency at an early stage of a dangerous situation. The corresponding measures message is transmitted to the information provider 300.

Then, the person in charge of the general control room judges whether the dangerous situation generated through continuous monitoring of the image of the dangerous situation provided through the information providing unit 300 and the situation contact with the dangerous site is possible to recover the measures and train operation in a short time. do.

If it is deemed possible to recover the train and operate the train within a short time, the person in charge of the general control room shall take all the necessary measures for normal train operation.

On the other hand, if it is judged that it is difficult to recover the measures and operate the train in a short time, the person in charge of the general control room can report 119, 112, announce the announcement in the train and the history, inform the station of the entire train, notify the train operation of the adjacent line, and notify the related agencies. Take all steps.

Referring to FIG. 12, the information processing unit 200 determines a dangerous situation in the platform based on the image information and the detection information transmitted from the information collecting unit 100, and if it is determined that a dangerous situation has occurred, a dangerous situation is generated and a danger is generated. The risk message informing the danger of the situation is transmitted to the information providing unit 300 provided to the train company together with the image of the dangerous situation. Accordingly, the train company can recognize the risk of the dangerous situation and the dangerous situation through the information providing unit 300.

The information processing unit 200 continuously transmits a corresponding message corresponding to the progress state of the dangerous situation to the information providing unit 300 provided to the train company.

More specifically, the information processing unit 200 transmits a response message to the information providing unit 300 for guiding measures such as notification of the status of the comprehensive control room, waiting for the command of the general control room, monitoring the accident site, etc. in the initial stage of the dangerous situation. do.

As described above, the train company that recognizes the occurrence and progress of the dangerous situation in the platform through the information providing unit 300 continuously measures communication with the general control room, promptly responds to the command of the general control room, and conducts announcements in the train and history. Take

Referring to FIG. 13, the information processing unit 200 determines a dangerous situation in a platform based on image information and detection information transmitted from the information collecting unit 100, and if it is determined that a dangerous situation has occurred, a dangerous situation occurs and a danger occurs. The risk message informing the danger of the situation is transmitted to the information providing unit 300 provided to the station attendant in the platform along with the image of the dangerous situation. Accordingly, the station attendant can recognize the risk occurrence and the risk of the dangerous situation through the information providing unit 300.

The information processing unit 200 continuously transmits a corresponding message corresponding to the progress state of the dangerous situation to the information providing unit 300 provided to the station attendant in the platform.

More specifically, the information processing unit 200 transmits a response message to the information providing unit 300 for guiding measures such as accident scene movement, casualty relief and evacuation, and passenger induction at an early stage of a dangerous situation.

As described above, the station attendant who recognizes the occurrence and progress of the dangerous situation in the platform through the information providing unit 300 takes various measures such as requesting personnel support, continuous communication with the general control room, and prompt response to the command of the general control room.

It is apparent to those skilled in the art that the present invention is not limited to the above-described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1 is an overall configuration diagram of a platform monitoring system according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an installation position of the camera illustrated in FIG. 1.

3 is a diagram illustrating an installation position of a sensor illustrated in FIG. 1.

FIG. 4 is a diagram for describing a platform monitoring region photographed by the camera illustrated in FIG. 1.

5 is a configuration diagram illustrating an example of the risk determination unit illustrated in FIG. 1.

FIG. 6 is a diagram for describing a method of obtaining 3D image coordinate information by using a stereo camera.

FIG. 7 is a flowchart illustrating a method of determining a risk determination unit illustrated in FIG. 5.

FIG. 8 is a flowchart for describing in more detail the step S140 illustrated in FIG. 7.

FIG. 9 is a flowchart for describing the operation S150 shown in FIG. 7 in more detail.

FIG. 10 is a configuration diagram of the information providing unit shown in FIG. 1.

11 is a flowchart illustrating an example of a response message provided to the general control room when a dangerous situation occurs in the platform.

12 is a flowchart illustrating an example of a response message provided to a train driver when a dangerous situation occurs in a platform.

13 is a flowchart illustrating an example of a response message provided to a station attendant when a dangerous situation occurs in a platform.

<Explanation of symbols for the main parts of the drawings>

100: information collecting unit 110: camera

120: sensor 200: information processing unit

210: risk determination unit 220: signal generation unit

230: accident history storage unit 300: information provider

310: wired communication unit 320: wireless communication unit

330: display unit

Claims (20)

An information collecting unit including at least one stereo camera collecting image information on a platform monitoring area including a train track, and at least one sensor collecting detection information on the platform monitoring area; A risk determination unit that determines whether a dangerous situation occurs on the platform and a risk level of the dangerous situation based on the image information and detection information transmitted from the information collecting unit, and corresponds to a risk level of the dangerous situation determined by the risk determination unit. An information processing unit including a signal generation unit generating a dangerous message; And It includes an information providing unit for providing a train operator with the dangerous message transmitted from the information processing unit with the image of the dangerous situation, The risk determination unit, An object detection module that determines whether the object falls in a danger area that is previously set as an area in which the object falls among the platform monitoring areas to interfere with normal train operation based on the image information obtained by the stereo camera; An object recognition module for determining whether an object fallen in the dangerous area is a dangerous object that impedes normal train operation based on a preset criterion based on the 3D image coordinate information of the object by the stereo camera; And If it is determined that the fall object is the dangerous object, the object is given a unique identification code, and includes an object tracking module for tracking the movement of the object to which the identification code is given, The object tracking module, When the movement of the object to which the identification code is assigned is detected, if the object is out of the dangerous area during the tracking of the object by continuing tracking the object, the assigned identification code is deleted and the identification code is deleted. If the movement of the object to which the is assigned is not detected, comparing the current image with the pre-stored background image and deleting the assigned identification code if it is determined that the object to which the identification code is assigned does not exist in the danger zone. Platform monitoring system. The method of claim 1, The signal generation unit generates a response message corresponding to the progress of the dangerous situation, The information providing unit, platform monitoring system, characterized in that for providing the corresponding message to the train operator. The method of claim 1, The signal generation unit, Platform monitoring system, characterized in that for generating a train stop signal for braking the train to enter the platform where the dangerous situation occurred. The method of claim 2, The information providing unit, A display unit displaying the dangerous message, the corresponding response message, and an image of the dangerous situation to a train operator; A wired communication unit configured to receive the dangerous message, the countermeasure message, and the image of the dangerous situation transmitted from the information processing unit, and transmit the image on the display unit via wired communication; And Platform monitoring system comprising a wireless communication unit for receiving the dangerous message, the response message and the image of the dangerous situation transmitted from the information processing unit to transmit to the display unit by wireless communication. The method of claim 4, wherein The display unit, Platform monitoring system comprising at least one of a liquid crystal display (LCD), a personal digital assistant (PDA). The method of claim 4, wherein The display unit, Platform monitoring system, characterized in that provided to at least one of the general control room, station office, train driver or station staff in the platform. The method of claim 6, The wired communication unit transmits the dangerous message, the countermeasure message, and the image of the dangerous situation to a display unit provided to the general control room and the work room, The wireless communication unit, the boarding point monitoring system, characterized in that for transmitting the image of the dangerous message, the corresponding message and the dangerous situation to the display unit provided to the train operator and the station attendant in the platform. delete delete The method of claim 1, The object recognition module, Platform monitoring system, characterized in that for calculating the size of the object falling in the dangerous area based on the three-dimensional image coordinate information of the object by the stereo camera, and if the calculated size is more than the set size. . delete delete delete The method of claim 1, The object tracking module, Platform monitoring system, characterized in that for tracking the movement of the object given the identification code based on the image difference between the current frame and the previous frame of the image information obtained by the stereo camera. The method of claim 1, The object detection module, The platform monitoring system, characterized in that it is determined whether the object falls in the dangerous area based on the image difference between the current frame and the previous frame of the image information obtained by the stereo camera. delete The method of claim 1, The at least one sensor, Platform monitoring system, characterized in that at least one of the ultrasonic sensor, microwave sensor, laser sensor or infrared sensor. The method of claim 1, The information processing unit, Platform monitoring system further comprises an accident history storage for storing the accident history due to the occurrence of a dangerous situation in the platform. The method of claim 18, The risk determination unit, Platform monitoring system, characterized in that for determining the risk of the dangerous situation by referring to the statistical data on the accident history stored in the accident history storage. The method of claim 1, The information processing unit, Platform monitoring system, characterized in that for transmitting the image to the information providing only when a dangerous situation in the platform.

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