Home Surveillance System

Abstract

To provide a platform monitoring system which can perform proper determination and secure notification about results of the determination relating to attention requests raised for users by the station side in monitoring the platform of the station.SOLUTION: A platform monitoring system 500 comprises an imaging part 10 for acquiring image data of a platform PF in a prescribed area, an image processing part GP for extracting a position of a pedestrian from the image data acquired by the imaging part 10, a determination part JD for determining whether there is a pedestrian PD in a dangerous position based on an extraction result obtained by the image processing part GP, and a notification part 50 for communicating with a communication terminal which is a portable article of the pedestrian in the prescribed area and notifying the pedestrian of an attention responding to the determination result obtained by the determination part JD.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a platform monitoring system for monitoring a station platform. [Background technology]

[0002] A known alarm system that uses beacons for monitoring is one that sounds an alarm depending on the distance between a beacon terminal carried by a user and a beacon placed within a station (see Patent Document 1).

[0003] However, in the case of the warning system disclosed in the above Patent Document 1, the risk determination is made by the beacon terminal on the user's side based on the distance to the beacon, so the accuracy of the determination depends on the accuracy of the beacon, which may not be appropriate. Also, there is a possibility that the station monitors may not be able to accurately grasp the occurrence of a risk. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-176982 Summary of the Invention

[0005] The present invention has been made in consideration of the above points, and aims to provide a platform monitoring system that, when monitoring station platforms, enables the station to make accurate judgments and reliably notify users of the results of those judgments when issuing warnings.

[0006] To achieve the above objective, the platform monitoring system comprises an imaging unit that acquires image data for a specified area of ​​the platform, an image processing unit that extracts the position of pedestrians from the image data acquired by the imaging unit, a judgment unit that determines whether pedestrians are in a dangerous position based on the extraction results of the image processing unit, and a notification unit that communicates with items carried by pedestrians within the specified area and issues a warning notification corresponding to the judgment result of the judgment unit.

[0007] In the above-mentioned platform monitoring system, the monitoring side can determine whether a pedestrian is in a dangerous position on the platform based on image analysis in the image processing unit, and the notification unit communicates with the pedestrian's belongings within a specified range to issue a warning, making it possible to make accurate judgments and reliably notify the results of those judgments.

[0008] In a specific aspect of the present invention, the notification unit is installed within a predetermined range and performs short-range wireless communication to notify a portable object that is within the communication range. In this case, by notifying a portable object that is within the communication range by short-range wireless communication, it is possible to alert a pedestrian carrying the portable object.

[0009] In another aspect of the present invention, the notification unit includes a plurality of communication devices installed on the platform corresponding to each of a plurality of predetermined areas divided along the direction of travel of the train, and the plurality of communication devices independently issue a warning notification to a portable object. In this case, the notification can be made for each of the divided predetermined areas.

[0010] In yet another aspect of the present invention, the plurality of communication devices are installed corresponding to the stopping ranges of the respective cars constituting the train. In this case, the processes from capturing images to notifying the driver can be performed on a car-by-car basis.

[0011] In yet another aspect of the present invention, the imaging unit includes a plurality of cameras arranged on the platform along the direction of train travel, the image processing unit has a plurality of image processing circuits corresponding to the plurality of cameras, and the determination unit outputs determination results to a plurality of communication devices individually based on the extraction results of the plurality of image processing circuits. In this case, the extraction results of each image processing circuit can be collectively processed by the determination unit and notified via each communication device.

[0012] In yet another aspect of the present invention, the imaging unit includes a plurality of cameras arranged on the platform along the direction of train travel, the image processing unit has a plurality of image processing circuits corresponding to the plurality of cameras, and the determination unit has a plurality of determination circuits corresponding to the plurality of image processing circuits, and the plurality of determination circuits output determination results to the corresponding plurality of communication devices. In this case, processing up to notification based on an image captured by one camera and processing up to notification based on an image captured by another camera can be performed individually for each of the corresponding cameras, image processing circuits, and determination circuits.

[0013] In yet another aspect of the present invention, the portable object issues a warning in response to a notification from the notification unit by changing at least one of sound, vibration, and light. In this case, the notification mode can be optimized depending on the pedestrian's situation, such as whether or not they have a disability, and the notification can be made distinguishable between notifications about other content, such as incoming call notifications, and notifications calling for attention.

[0014] In yet another aspect of the present invention, a speaker is provided that broadcasts a warning based on the determination result of the determination unit, and the warning notification by the notification unit to the portable object and the warning broadcast by the speaker are performed in parallel. In this case, the parallel notification by the speaker and the notification to the portable object allows for more accurate warning notification.

[0015] In yet another aspect of the present invention, a general control unit is provided that receives the determination result output from the determination unit and controls the entire device. In this case, the general control unit at the station can grasp the overall situation. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a conceptual diagram showing a station in which a platform monitoring system according to an embodiment is installed. [Figure 2] FIG. 1 is a conceptual diagram for explaining the operation of a platform monitoring system at a station. [Figure 3] 1A and 1B are conceptual diagrams for explaining an example of the configuration and specific operation of a platform monitoring system. [Figure 4] FIG. 1 is a block diagram showing an example of the configuration of a platform monitoring system. [Figure 5] FIG. 2 is a block diagram showing an example of the configuration of one monitoring unit in the home monitoring system. [Figure 6] FIG. 1 is a conceptual diagram for explaining the flow from detection to notification by the home monitoring system. [Figure 7] (A) to (C) are data tables showing examples of various data handled during processing in the home monitoring system. [Figure 8] 10 is a flowchart illustrating a series of processes in the home monitoring system. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, a platform monitoring system according to one embodiment will be described with reference to Fig. 1 and other figures. Fig. 1 is a diagram showing the platform PF of a station where a platform monitoring system 500 according to this embodiment is installed. As shown in the figure, the components that make up the platform monitoring system 500 are installed along the direction of travel of the train TR indicated by arrow A1 on the platform PF of the station, making it possible to monitor an area (danger area) DD on the platform PF, which is the end of the platform PF on the track side where pedestrians and the like may fall. In the figure, area DD is shown as partial areas DD1 to DD4 divided by a plurality of hatching patterns.

[0018] In order to enable monitoring of the area DD as described above, the home monitoring system 500 includes a plurality of monitoring units 100 and a general control unit 90.

[0019] The multiple monitoring units 100 are arranged along the arrow A1, i.e., the traveling direction of the train TR. In the illustrated example, the system is configured with two monitoring units 100A and 100B, but the number of monitoring units 100 can be changed as appropriate depending on the range to be monitored (the range of the platform PF based on the length of trains that can depart and arrive), etc.

[0020] Each monitoring unit 100 (for example, monitoring unit 100A) is composed of, for example, a camera CA constituting the imaging unit 10, a relay connection box BR, a monitor 30, a speaker 40, a notification unit 50, etc. The relay connection box BR stores an image processing terminal 20 and the like for performing analysis processing on the images captured by the imaging unit 10 (see, for example, FIGS. 3 to 5).

[0021] The monitoring unit 100 performs image analysis on the image captured by the camera CA of the area DD, and if there is a risk of a pedestrian falling onto the tracks, in addition to issuing an alert using the speaker 40, it also uses a notification unit 50 that performs short-range wireless communication to notify the pedestrian on a portable device such as a smartphone. The monitoring unit 100 can also display the image captured by the camera CA on the monitor 30. The monitor 30 can also display the image during times when the platform monitoring system 500 is not monitoring, such as when a train TR is stopped and passengers are getting on and off.

[0022] The comprehensive control unit 90 is composed of, for example, a hub 91, a management-side determination control unit 92, and a comprehensive control panel 93, and monitors the entire platform PF. To this end, the comprehensive control unit 90 is connected to each monitoring unit 100 via a relay connection box BR, for example, at the hub 91, and is able to acquire various information, such as information on the monitoring results of each monitoring unit 100. The management-side determination control unit 92 is also connected to a train detection unit DT, which is composed of various sensors, to confirm the presence of a train TR (track presence confirmation) and to perform arrival and departure checks. The comprehensive control panel 93 manages various information and performs overall control of the entire platform PF. For example, the comprehensive control panel 93 determines whether or not to monitor pedestrians using each monitoring unit 100 based on the track presence confirmation results of the management-side determination control unit 92, and notifies each monitoring unit 100 of the result of this determination via the hub 91. In other words, while the train TR is stopped, passengers are getting on and off, so there is no need for each monitoring unit 100 to monitor pedestrians, and during this time, the operation of each monitoring unit 100 is suspended, but when the train TR departs, each monitoring unit 100 starts (resumes) monitoring pedestrians again.

[0023] In particular, in this embodiment, in the platform monitoring system 500 configured as described above, the area DD captured by the camera CA is divided into partial areas DD1 to DD4, which are indicated by hatching, and monitored individually. In the example shown in the figure, a four-car train TR is assumed, and the four partial areas DD1 to DD4 are formed to correspond to the expected stopping ranges of one of the cars CR that make up the train, and the area DD taken as a whole of the partial areas DD1 to DD4 covers the range required for monitoring to prevent pedestrians from falling.

[0024] The notification unit 50 is configured to include multiple (two) communication devices, a first communication device 50α and a second communication device 50β, for transmitting signals by short-range wireless communication in each of the divided partial areas DD1 to DD4 and sending notifications to portable objects (smartphones, etc.) present within the range of each area, i.e., the communication range. More specifically, the first communication device 50α and the second communication device 50β constituting the notification unit 50 of the monitoring unit 100A are arranged corresponding to the partial area DD1 and the partial area DD2, and the first communication device 50α and the second communication device 50β constituting the notification unit 50 of the monitoring unit 100B are arranged corresponding to the partial area DD3 and the partial area DD4. As a result, as shown in FIG. 2, the multiple (four) communication devices 50α, 50β constituting the notification unit 50 each transmit a warning signal within a range conceptually indicated by a concentric circular figure. The transmission range (receivable range) of each communication device 50α, 50β includes the corresponding partial areas DD1-DD4. That is, the multiple communication devices 50α, 50β provided in each monitoring unit 100A, 100B are installed corresponding to the partial areas DD1-DD4, which are predetermined areas divided along the direction of travel of the train TR on the platform PF. Each communication device 50α, 50β independently transmits a warning signal to a portable object (e.g., a smartphone) carried by a pedestrian. Therefore, when a pedestrian carrying a portable object (e.g., a smartphone) capable of communicating with each communication device 50α, 50β is present within the partial areas DD1-DD4, communication between the communication devices is possible. For example, the communication range is considered to be approximately 20 m if the length of each of the partial areas DD1 to DD4 is roughly the length of one train car, and accordingly, the communication range extending concentrically from the center position of each of the partial areas DD1 to DD4 can be set to have a radius of approximately 10 m.

[0025] In the above case, the plurality of communication devices 50α, 50β are installed corresponding to the stopping ranges of the respective cars CR that make up the train TR. On the other hand, the speaker 40 is placed at an intermediate position between the communication devices 50α and 50β as shown in the figure, and is capable of outputting audio to the areas covered by both communication devices.

[0026] Hereinafter, an example of the configuration and specific operation of the home monitoring system 500 will be described with reference to FIG.

[0027] As shown in FIG. 3(A), to enable the above-described operational mode, the platform monitoring system 500 is configured such that the imaging unit 10, i.e., the multiple (two) cameras CA provided in each of the monitoring units 100A and 100B, capture images of the entire area DD. Of these, the camera CA on the monitoring unit 100A side captures images of partial areas DD1 and DD2 corresponding to the rear half of the platform PF in the direction of travel (forward) of the train TR, while the camera CA on the monitoring unit 100B side captures images of partial areas DD3 and DD4 corresponding to the front half of the platform PF. Furthermore, the images captured by each camera CA are divided into the partial areas DD1 to DD4 and then analyzed. That is, a portion of the image captured by the camera CA on the monitoring unit 100A side captures the area corresponding to partial area DD1, and another portion captures the area corresponding to partial area DD2. Similarly, a part of the image captured by the camera CA on the monitoring unit 100B side shows a range corresponding to the partial area DD3, and another part shows a range corresponding to the partial area DD4.

[0028] Furthermore, in the home monitoring system 500, the monitoring unit 100A has various components connected to the image processing terminal 20 housed in the relay connection box BR. That is, when the image processing terminal 20 acquires image data from the imaging unit 10 (camera CA), it analyzes the image data, and if the analysis results indicate that there is a location that requires a warning, it transmits a warning signal from a communication device (e.g., communication device 50α) installed in the relevant location of the notification unit 50. In parallel with this, the speaker 40 issues a warning. In the monitoring unit 100B, a similar operation is performed by the operation of the image processing terminal 20.

[0029] On the other hand, in the monitoring units 100A and 100B, the image processing terminal 20 may perform processing to display image data from the imaging unit 10 (camera CA) on the monitor 30. As shown in the figure, the monitor 30 is provided, for example, at a position corresponding to the very end of the train, and is configured, for example, with a plurality of display screens, and image data from the image processing terminal 20 in each of the monitoring units 100A and 100B is displayed on each of the plurality of display screens, so that the conductor can use the monitors to check the situation on the platform when the train TR is stopped (see FIG. 1, etc.).

[0030] 3(B), a pedestrian PD carrying a communication terminal SM such as a smartphone as a portable object capable of short-range wireless communication with the notification unit 50 is notified that he or she is in a dangerous location by voice (sound) VO, vibration VB, and display (light) DS on the display unit SMd via the communication terminal SM. In other words, the communication terminal SM as a portable object issues a warning in response to the notification from the notification unit 50 by changing at least one of sound, vibration, and light.

[0031] In the figure, a situation is shown as an example in which a pedestrian PD in the area DD3 receives a notification from the first communication device 50α of the monitoring unit 100B. In this case, a notification is also made by voice VOs from the speaker 40.

[0032] 4 is a block diagram showing an example of the configuration of the above-described platform monitoring system 500. The figure also shows an example of the configuration of a communication terminal SM as a portable object carried by the pedestrian PD.

[0033] As shown in the figure, and as described above, in each monitoring unit 100 of the home monitoring system 500, the image processing terminal 20 is connected to each component constituting the monitoring unit 100, enabling input and output of various information. In the example shown, a relay connection box BR that stores the image processing terminal 20 is provided with, in addition to the image processing terminal 20, a sound source device SD (amplifier AP) for the speaker 40 and an I / O board BO for connecting to each component such as the notification unit 50 and the overall control unit 90, and the image processing terminal 20 is connected to the speaker 40, the notification unit 50, the overall control unit 90, etc. via the sound source device SD and the I / O board BO.

[0034] On the other hand, the communication terminal SM includes a short-range wireless communication unit SMt, a display unit SMd, a touch panel SMp, a speaker SMs, a vibrator SMv, a storage unit SMm, and a main control unit SMc. The communication terminal SM is configured by installing a dedicated app in advance on a smartphone carried by a pedestrian (user) PD through appropriate operations such as using the touch panel SMp. That is, when using a station, the dedicated app is already running, enabling the communication terminal SM to communicate with the notification unit 50 via short-range wireless communication. While various methods can be used for short-range wireless communication, here, as an example, short-range wireless communication using Bluetooth (registered trademark) is possible, and the communication range as described above has also been set in advance.

[0035] The main control unit SMc of the communication terminal SM communicates with the notification unit 50, i.e., performs short-distance wireless communication via the short-distance wireless communication unit SMt as necessary, and in response to the communication result, performs operations such as sound output from the speaker SMs, vibration from the vibrator SMv, and display on the display unit SMd, in accordance with the contents pre-registered in the memory unit SMm. Note that Fig. 4 shows the communication terminal SM notifying the first communication device 50α of the monitoring unit 100B, in line with the example described with reference to Fig. 3(B).

[0036] Furthermore, the image processing terminal 20 is connected to the overall control unit 90, and when communication with the communication terminal SM via the notification unit 50 as described above is performed, the image processing terminal 20 transmits the communication content to the overall control unit 90. This makes it possible for the overall control unit 90 to grasp various operation histories for monitoring in the multiple monitoring units 100.

[0037] It is also possible to consider that the communication terminal SM is also included in the home monitoring system 500. In other words, the home monitoring system 500 can be considered to include the communication terminal SM as a component.

[0038] 5 is a block diagram showing an example of the configuration of monitoring unit 100A, which is one of the monitoring units in home monitoring system 500. Here, an example of the configuration of image processing terminal 20 in particular will be described in more detail.

[0039] To enable the above-described operations, the image processing terminal 20 includes a main control unit 21 configured, for example, by a CPU, electronic circuits, etc., and a memory unit 22 configured by various storage devices, etc. Furthermore, the main control unit 21 includes an image processing unit GP, which is an image processing circuit that extracts the position of the pedestrian PD from the image data acquired by the imaging unit 10, and a judgment unit JD, which is a judgment circuit that determines whether the pedestrian PD is in a dangerous position based on the extraction result by the image processing unit GP. Alternatively, the main control unit 21 may be considered to function as these units.

[0040] The image processing unit GP is composed of a first pedestrian extraction unit PE1 that extracts pedestrians in the partial area DD1 (see Figure 1, etc.) from the acquired image, and a second pedestrian extraction unit PE2 that extracts pedestrians in the partial area DD2.

[0041] The memory unit 22 also stores area extraction data DA1 for extracting areas corresponding to the partial areas DD1 and DD2 from the image data acquired by the imaging unit 10, person extraction data DA2 for extracting a person image from the image data to enable determination of the presence or absence of a person, and notification data DA3 for issuing a notification via the notification unit 50 or the speaker 40.

[0042] Although not shown or described, the monitoring unit 100B can also be configured in a similar manner to the above. That is, when the monitoring units 100A, 100B are viewed as a whole, the home monitoring system 500 has a plurality (two) of image processing units (image processing circuits) GP corresponding to the plurality (two) of cameras CA, and the judgment unit (judgment circuit) JD is configured to be a plurality (two) corresponding to the plurality (two) of image processing units (image processing circuits) GP, and the plurality (two) judgment units (judgment circuits) JD output judgment results to the corresponding plurality (four) of communication devices 50α, 50β, respectively.

[0043] An example of a series of operations for monitoring by the platform monitoring system 500 or the monitoring unit 100, that is, a flow from detecting a pedestrian to notifying the pedestrian, will be summarized below with reference to FIG.

[0044] In FIG. 6, first, the imaging unit 10 (camera CA) of the monitoring unit 100 captures an image of a predetermined range (area DD) of the home PF, acquires image data GD1, and transmits the image data to the image processing unit GP of the image processing terminal 20 constituting the monitoring unit 100. The image processing unit GP analyzes the acquired image data GD1 and checks whether a person (pedestrian) is captured. If a person (pedestrian) is extracted, information on the person's position (pedestrian position) PS1 is also extracted. Next, the determination unit JD of the image processing terminal 20 determines whether a danger has occurred based on the extraction result of the image processing unit GP. The determination result by the determination unit JD is transmitted to the notification unit 50 as necessary, and the notification unit 50 sends a notification (warning notification) of the content according to the determination result to the communication terminal SM present in the area DD.

[0045] The determination result by the determination unit JD is also notified to the speaker 40 and the overall control unit 90. A warning message according to the determination result is broadcast from the speaker 40. That is, the notification of the warning message to the communication terminal SM by the notification unit 50 and the broadcast of the warning message by the speaker 40 are made in parallel.

[0046] In addition, the overall control unit 90 controls the entire platform monitoring system 500 by receiving the determination results output from the determination unit JD and managing various types of information.

[0047] FIG. 7 is a data table illustrating various data handled during various processes in the home monitoring system 500 described above. For example, FIG. 7(A) is a data table showing an example of the contents of pre-registration for a smartphone to function as a communication terminal SM. FIG. 7(B) is a data table showing an example of a transmission ID transmitted from the notification unit 50 to the communication terminal SM. FIG. 7(C) is a data table showing an example of an operation pattern (alert mode pattern) corresponding to the transmission ID stored in the communication terminal SM. FIG. 7(C) shows an example of an audio operation pattern among the operation modes of the communication terminal SM.

[0048] First, as shown in FIG. 7A , a pedestrian (user) registers, as pre-registration information, an ID (smartphone ID) for identifying the smartphone when using the smartphone or the like as a communication terminal SM. Furthermore, in this example, in addition to the smartphone ID, pre-selected information regarding the manner in which the communication terminal SM should operate when issuing a notification is linked to the smartphone ID and registered. More specifically, for audio, volume and language can be pre-registered, and for display, display size and language can be selected. Furthermore, for vibration, vibration patterns can be selected, allowing for differentiation from normal incoming calls, incoming emails, and the like based on the difference in vibration patterns. If only a broadcast using the speaker 40 as described above were to be performed, there is a possibility that accurate notification to persons in danger may not be provided depending on the surrounding environment of the home platform. Therefore, in this embodiment, as described above, a smartphone or the like carried by the pedestrian is used as the communication terminal SM, and the pedestrian is allowed to select the notification pattern himself / herself, thereby enabling more accurate warnings to be issued. In this case, it is also possible to select a notification mode that takes into account, for example, visual or hearing impairments. In addition to the above, various information about the person carrying the smartphone communication terminal SM, i.e., the pedestrian PD, may also be linked as pre-registered information. The data shown in FIG. 7(A) may be managed, for example, by the overall control unit 90.

[0049] As shown in FIG. 7B, when a notification is sent from the notification unit 50 to the communication terminal SM via short-range wireless communication, the notification content is predetermined depending on the location where the notification is to be sent and the degree of risk of falling based on the results of image analysis, and the notification content is pre-registered as multiple patterns (patterns α, β, ...) corresponding to each notification content. Furthermore, as shown in FIG. 7C, the communication terminal SM stores reference data for the above patterns and pre-registered audio behavior options in the storage unit SMm. Thus, when a transmission ID specifying one of the multiple patterns α, β, ... shown in FIG. 7B is sent from the notification unit 50, the communication terminal SM that receives the transmission ID starts an operation corresponding to the transmitted ID and the operation pattern corresponding to the pre-selected audio, vibration, and display behavior shown in FIG. 7A. For example, as shown in white on a black background in the figure, if the audio data corresponding to the notification selection mode selected in advance in Fig. 7(A) is "standard volume" and it is notified that the content corresponding to "pattern γ" among the multiple patterns shown in Fig. 7(B) should be output, the corresponding audio data is extracted in Fig. 7(C) and output (played) from the speaker SMs as the notification content. Note that the same applies to display operations and vibration operations.

[0050] A series of processes for monitoring operations in home monitoring system 500 will be described below with reference to the flowchart shown in Fig. 8. Here, the operation of each unit will be described, focusing on the operational processing in main control unit 21 of image processing terminal 20.

[0051] First, the main control unit 21 of the image processing terminal 20 checks whether a command to stop monitoring operation has been received from the general control unit 90 (step S101). Specifically, if the train detection unit DT confirms that the train TR is on the track and has stopped at the station with passengers getting on or off, the operation is stopped so that the platform monitoring system 500 will not perform monitoring or the associated alert operation. If it is determined in step S101 that a command to stop operation has been received (step S101: Yes), the main control unit 21 stops operation (step S102) and waits for a command to resume operation (step S103).

[0052] When the train TR departs, if the general control unit 90 issues a command to unsuspend the monitoring operation (to resume monitoring) (step S103: Yes), the main control unit 21 starts (resumes) the operation (step S104), checks whether the image data from the imaging unit 10 has been updated (step S105), and if there has been no update, i.e., if no new images have been acquired (step S105: No), returns to the operation from step S101.

[0053] On the other hand, if an update has been made in step S105 (step S105: Yes), the main control unit 21 causes the image processing unit GP to extract people from the newly acquired image data (step S106), and the judgment unit JD determines whether or not a person is present in the danger area, i.e., area DD (step S107).

[0054] In step S106, if the presence of a person in the danger area is not confirmed (step S107: No), the main control unit 21 notifies the overall control unit 90 that there is no abnormality (step S108), and returns to the operation from step S101.

[0055] On the other hand, if the presence of a person is confirmed in the danger area in step S107 (step S107: Yes), the main control unit 21 performs an alarm operation in the area where the presence of a person is confirmed (for example, area DD3 in FIG. 3(B)) using the notification unit 50 or speaker 40 (step S109). At the same time, a notification that an abnormality has occurred is sent to the overall control unit 90 (step S110). Note that in this case, information regarding the abnormality, such as its location, may also be transmitted to the overall control unit 90.

[0056] When the operation of step S110 is completed, the main control unit 21 returns to the operation from step S101.

[0057] Among the above, for example, during short-range wireless communication between the notification unit 50 and the communication terminal SM in step S109, the communication terminal SM may also transmit its own ID (smartphone ID) to the notification unit 50. In this case, by transmitting the smartphone ID information from the communication terminal SM from the notification unit 50 to the image processing terminal 20 and further to the general control unit 90 in step S110, it becomes possible for the station to identify the holder (pedestrian) of the communication terminal SM that received the notification from the notification unit 50 in step S109, for example.

[0058] As described above, the platform monitoring system 500 according to this embodiment includes the imaging unit 10 that acquires image data GD1 for area DD, which is a predetermined range on the platform PF, the image processing unit GP that extracts the position of pedestrian PD from the image data GD1 acquired by the imaging unit 10, the determination unit JD that determines whether pedestrian PD is in a dangerous position based on the extraction result by the image processing unit GP, and the notification unit 50 that communicates with a communication terminal SM carried by the pedestrian within the predetermined range and issues a warning notification corresponding to the determination result by the determination unit JD. This platform monitoring system 500 enables the monitoring side, i.e., the station side, to determine whether pedestrian PD is in a dangerous position on the platform PF based on image analysis by the image processing unit GP, and the notification unit 50 to communicate with the communication terminal SM carried by the pedestrian PD within area DD, which is the predetermined range, to issue a warning notification, thereby enabling accurate determination and reliable notification of the determination result.

[0059] 〔others〕 The present invention is not limited to the above-described embodiment, and can be embodied in various forms without departing from the spirit and scope of the present invention.

[0060] First, in the above embodiment, in order to make the explanation of the notification mode easier to understand, for example, as shown in Fig. 1, two sets of monitoring units 100 (monitoring units 100A and 100B) are provided for a four-car train TR, and in each monitoring unit 100, one imaging unit 10 captures an image of a danger area corresponding to an area equivalent to the width of two cars, and further, multiple (two) communication devices 50α and 50β constituting the notification unit 50 perform short-range wireless communication within an area equivalent to one car each. However, the present invention is not limited to this mode, and the number, arrangement, and communication range of the short-range wireless communication of each unit can be appropriately changed depending on the number of formations of the train TR and the performance of the cameras CA constituting the imaging unit 10.

[0061] Furthermore, various methods can be considered for use as short-distance wireless communication, as long as they can be adjusted to a desired communication range, and various methods can be used in addition to the above-mentioned Bluetooth (registered trademark).

[0062] In the above description, the notification mode of the communication terminal SM is voice (sound) VO, vibration VB, display (light) DS on the display unit SMd, or a combination of these, but it is not limited to these and other modes may also be used. Furthermore, the communication terminal SM is not limited to a smartphone, and various portable devices having equivalent functions can be used.

[0063] Furthermore, although the above description has been given of an embodiment in which each monitoring unit 100 can perform the entire process from detecting a person to issuing a warning, it is also possible to configure the overall control unit 90 to perform various monitoring processes. That is, it is conceivable to consolidate the image processing terminals 20 provided in each monitoring unit 100 into the overall control unit 90, and to provide each relay connection box BR with only the function of communicating various data. It is also possible to configure the overall control unit 90 to perform some of the functions of the components constituting the image processing terminal 20. For example, the management-side determination control unit 92 of the overall control unit 90 may function as the determination unit JD of each monitoring unit 100. That is, it is also conceivable to configure the management-side determination control unit 92 as the determination unit JD to output individual determination results to multiple (four) communication devices 50α, 50β based on extraction results from multiple (two) image processing units (image processing circuits) provided in each monitoring unit 100. In this case, the management side determination control unit 92 operates as a determination unit JD in conjunction with the operational processing based on the determination result in the train detection unit DT.

[0064] Furthermore, in the above, in each monitoring unit 100, one camera CA is used to capture an image of one area as the imaging unit 10, but this is not limited to this, and in each monitoring unit 100, the imaging unit 10 may be configured with multiple (two or more) cameras CA. [Explanation of symbols]

[0065] 10...imaging unit, 20...image processing terminal, 21...main control unit, 22...storage unit, 30...monitor, 40...speaker, 50...notification unit, 50α...first communication device, 50β...second communication device, 90...general control unit, 91...hub, 92...management side judgment control unit, 93...general control panel, 100, 100A, 100B...monitoring unit, 500...home monitoring system, A1...arrow, AP...amplifier, BR...relay connection box, CA...camera, CR...vehicle, DA1...area extraction data, DA2...person extraction data, DA3...alert data, DD...area (danger area), DD1 to DD4...part Area, DS...display (light), DT...train detection unit, GD1...image data, GP...image processing unit (image processing circuit), JD...judgment unit (judgment circuit), PD...pedestrian (user), PE1...first pedestrian extraction unit, PE2...second pedestrian extraction unit, PF...platform, PS1...position (pedestrian position), SD...sound source device, SM...communication terminal, SMc...main control unit, SMd...display unit, SMm...memory unit, SMp...touch panel, SMs...speaker, SMt...near-field wireless communication unit, SMv...vibrator, TR...train, VB...vibration, VO...voice (sound), VOs...voice

Claims

1. an imaging unit that acquires image data for a predetermined area of ​​the platform; an image processing unit that extracts the position of a pedestrian from the image data acquired by the imaging unit; a determination unit that determines whether a pedestrian is in a dangerous position based on the extraction result of the image processing unit; a notification unit that performs short-distance wireless communication within the predetermined range with a carried object of the pedestrian that is already capable of communication, and issues a warning notification corresponding to the determination result of the determination unit; Equipped with The notification unit has a plurality of communication devices installed so as to include each of the partial areas within a range capable of short-range communication, corresponding to a plurality of partial areas obtained by dividing the area imaged by the imaging unit along the direction of train travel on the platform, and issues warning notifications independently for each partial area. This is a platform monitoring system.

2. 2. The platform monitoring system according to claim 1, wherein the plurality of communication devices are installed corresponding to stopping areas of the respective cars constituting the train.

3. the imaging unit includes a plurality of cameras arranged on the platform along a direction of travel of the train so as to correspond to the plurality of partial areas, the image processing unit has a plurality of image processing circuits corresponding to the plurality of cameras, The home monitoring system according to claim 1 or 2, wherein the determination unit outputs determination results to the plurality of communication devices individually based on the extraction results of the plurality of image processing circuits.

4. the imaging unit includes a plurality of cameras arranged on the platform along a direction of travel of the train so as to correspond to the plurality of partial areas, the image processing unit has a plurality of image processing circuits corresponding to the plurality of cameras, the determining unit has a plurality of determining circuits corresponding to the plurality of image processing circuits, 3. The home monitoring system according to claim 1, wherein the plurality of determination circuits output determination results to the corresponding plurality of communication devices, respectively.

5. The home monitoring system according to any one of claims 1 to 4, wherein the portable object issues an alert in response to the notification from the notification unit by changing at least one of sound, vibration, and light.

6. a speaker that broadcasts a warning message according to the determination result of the determination unit; The home monitoring system according to any one of claims 1 to 5, wherein the notification unit issues a warning to the portable object and the speaker broadcasts a warning in parallel.

7. 7. The platform monitoring system according to claim 1, further comprising an overall control unit that receives the determination result output from the determination unit and controls the entire device.

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