JP6971631B2 - Station alarm - Google Patents

Description

The present invention relates to an alarm device provided in a station yard.

As an alarm device installed in the station yard, a sensor is laid in the area outside the white line at the end of the platform (home) to warn when a pedestrian intrusion is detected. There are known warning systems (see Patent Document 1) that detect by treading on a pedestrian, and safety monitoring devices (see Patent Document 2) that perform detection based on distance information and image information of a stereo camera.

However, in the case of the warning system of Patent Document 1, for example, for a visually impaired person, even if he / she can recognize that he / she is in a dangerous position due to the warning, it is safe to move in either direction. It is not always known, and there is a possibility that the risk of falling will be higher than the risk of falling.

In addition, for example, there is a request to inform station staff and train crews who are trying to enter the station of the existence of a person who intentionally tries to enter the railroad track in the station yard as soon as possible.

Japanese Unexamined Patent Publication No. 2015-855847 Japanese Unexamined Patent Publication No. 2004-58737

The present invention has been made in view of the above points, and by more reliably preventing the train from falling into the railroad track from the platform of the station and detecting intentional intrusion into the railroad track, the inside of the station yard. The purpose is to provide a station alarm device that can be used for safety in the area.

Alarm device of the station in order to achieve the above object, situation determining section for a position detector for detecting the position of a moving body that moves the station yard, the status determination of a station yard, based on the detection information by the position detection unit And a notification unit that gives notification by changing the alarm level according to the determination result in the situation determination unit.

In the above-mentioned station alarm device, the situation judgment unit determines the situation in the station yard based on the position detection information of the moving object in the position detection unit, and the notification unit notifies according to the judgment result made by the situation judgment unit. The alarm level is changed. In other words, the method of notification is changed according to the situation inside the station. As a result, for example, a person as a moving object moving in the station yard, a guide dog, a wheelchair, a stroller, a silver car, etc. are moving toward a more dangerous side or a safer side in the station yard. It is possible to make the pedestrians themselves who are moving objects, station staff, etc. recognize whether they are moving. That is, it is possible to prevent the train from falling into the railroad track more reliably, and it is possible to ensure safety in the station yard. Further, depending on how the alarm level is changed, for example, it is possible to notify the station staff or the like of the existence of a person who intentionally tries to enter the track from the platform.

In a specific aspect of the present invention, the situation determination unit determines the alarm level to be notified by the notification unit according to the distance of the moving body to the home end detected by the position detection unit. In this case, the degree of alarm can be changed according to the distance of the moving body.

In another aspect of the present invention, the notification unit performs notification with a higher alarm level as the distance from the home end to the moving body becomes shorter. In this case, as the distance from the home end to the moving body becomes shorter, the alarm level is increased, so that it is possible to notify that the state has become more dangerous with the movement.

In yet another aspect of the present invention, the situation determination unit is a notification unit based on the degree of danger determined for each of a plurality of areas in the station yard and the position of the moving object detected by the position detection unit. Determine the alarm level to be notified. In this case, the degree of alarm can be changed depending on the relationship between the divided area and the position of the moving body.

In yet another aspect of the present invention, the notification unit indicates a change in the alarm level to be notified by changing at least one of sound, vibration and light. In this case, the mode of notification can be changed by using sound, vibration, or light.

In yet another aspect of the present invention, the position detecting unit has an imaging unit that acquires image information. In this case, the position can be detected based on the acquired image information.

In yet another aspect of the invention, the notification unit is a portable object attached to the moving body. In this case, it becomes possible to perform notification using, for example, a mobile phone, a smart phone, or the like as a portable object attached to the mobile body.

In yet another aspect of the present invention, the position detection unit has an image pickup unit that acquires image information, and the situation determination unit is an image information and image pickup unit of a person associated with information on a portable object as a notification unit. The situation is judged by collating with the image information of the person acquired by. In this case, the target to be notified can be specified by using the image information of the person.

In yet another aspect of the present invention, the situation determination unit stops the alarm operation by the notification unit when the door of the train on the line is open. In this case, it is possible to determine whether or not to perform an alarm operation according to the situation of the train on the line.

In yet another aspect of the present invention, the situation determination unit has a mobile body analysis unit that analyzes how the moving body moves. In this case, the mode of notification can be changed according to the movement of the moving body.

In yet another aspect of the present invention, the situation determination unit determines the situation based on the velocity component toward the home end of the moving body analyzed from the movement of the moving body in the moving body analysis unit. In this case, among the movements of the moving body, the mode of notification can be changed, particularly based on the velocity component.

In yet another aspect of the present invention, the notification unit includes a station staff notification unit that notifies the station staff in the station premises and the crew in the train. In this case, it is possible to notify the station staff in the station yard and the crew in the train according to the situation.

(A) and (B) are diagrams for explaining the installation environment of the alarm device of the station according to the first embodiment. It is a block diagram for explaining the structure of the alarm device of a station. It is a figure which shows an example of the image information acquired by the image pickup unit. It is a figure which shows a plurality of areas which divided the area in a station yard for determining the degree of danger. It is a flowchart which shows an example about a series of operation processing in the alarm device of a station. It is a figure for demonstrating the alarm device of the station which concerns on 2nd Embodiment. It is a figure which shows the state of the station premises about the alarm device of a station. (A) is a diagram for explaining an example of the data stored in the alarm device of the station, and (B) is a diagram for explaining another example of the stored data. (A) is a block diagram showing an example of the structure of the alarm device of the station according to the third embodiment, and (B) and (C) are diagrams for explaining the area division in the station yard in.

[First Embodiment]
Hereinafter, the station alarm device according to the first embodiment of the present invention will be described with reference to FIG. 1 and the like. 1 (A) and 1 (B) are diagrams for explaining the installation environment of the alarm device of the station according to the present embodiment, and FIG. 1 (A) is a view of the railroad track and the platform from above. FIG. 1 (B) is a diagram showing a state in which an alarm device of a station is installed on a platform of a station. Here, the user US in the platform (platform) PF of the station ST is set as one of the mobile MBs moving in the station premises, and is the target of position detection.

The station alarm device 100 detects the position of the mobile MB such as the user US in the station yard (particularly on the home PF), and determines the situation in the station yard based on the detected position information of the mobile MB. Then, the notification is performed by changing the alarm level according to the judgment result. Regarding the mobile MB that should be the target of position detection, in addition to the user US, that is, the person illustrated in the figure, a guide dog, a wheelchair, a stroller, a silver car, etc., move in the station yard with a person or alone. , Various things that can enter the line are conceivable.

Hereinafter, the configuration and the like of the station alarm device 100 in the present embodiment will be specifically described with reference to FIGS. 1 and 2. The station alarm device 100 according to the present embodiment outputs an image pickup unit (imaging camera) 10 that functions as a part of a position detection unit PD that detects the position of a moving body MB, and an alarm unit that changes the sound of the alarm as a notification unit. The speaker 20 is provided with a line presence confirmation sensor unit 30 laid in the track TK to confirm the presence line of the train TR, and a main control device 50 for performing various controls.

The image pickup unit 10 is an image pickup camera composed of an individual image pickup element such as a CCD or CMOS, and is installed on the upper side of the home PF and images the lower side as illustrated in FIG. 1 (B). That is, the image pickup unit 10 performs imaging from the upper side toward the floor surface FL of the home PF. Here, for example, the appearance of the floor surface FL of the home PF and the line TK as shown in FIG. 1A can be captured as the imaging range of the imaging unit 10 together with the home end EG corresponding to these boundary BDs. For example, as shown in FIG. 3, the image corresponding to FIG. 1 (A) is imaged by the image pickup unit 10. Here, in the present embodiment, with respect to the floor surface FL of the home PF, the area closer to the track TK is divided into a plurality of areas in order to show that the risk of falling is higher. Specifically, in the example shown in FIG. 1A, the floor surface FL has a level 0 region A0 inside the tactile paving block BB and a level 1 region A1 on the tactile paving block BB. It is divided into four regions A0 to A3, a level 2 region A2 outside the Braille block BB and inside the end-to-end portion EP, and a level 3 region A3 on the end-to-end portion EP. In addition to these four regions A0 to A3, the imaging unit 10 includes the region Ax in the line TK beyond the boundary BD (home end EG) in the imaging range.

The speaker 20 outputs the sound as an alarm sound while gradually changing the volume, the pitch of the sound, the interval of the sound, and the like according to the output signal from the main control device 50.

The image pickup unit 10 is provided in a single number or a plurality of image pickup units 10 in order to enable imaging of the entire home PF, depending on the installation position, the shape of the home PF, and the like. Further, the speaker 20 is also installed in a single number or a plurality of speakers 20 to the extent that notification can be performed corresponding to the user US, which is a mobile MB imaged by the image pickup unit 10.

The on-line confirmation sensor unit 30 is laid in the track TK, and information can be exchanged by electromagnetic coupling with a device in the train TR on the track TK, for example, and at least whether the train is on the track TK. The information of whether or not it is acquired is transmitted to the main control device 50.

The main control device 50 is composed of, for example, a CPU, a storage device, or the like, and detects the position of the moving body MB based on the image information acquired by the image pickup unit 10, thereby determining the situation in the station yard and the determination result. In response to this, the speaker 20 as a notification unit is made to perform notification with a changed alarm level. Therefore, as shown in FIG. 2, the main control device 50 includes an image processing unit 51, a position analysis unit 52, a situation determination unit 53, a voice output circuit 54, and a train presence determination unit 55. In addition to these, the main control device 50 includes a storage unit ME for storing various data and the like.

Of the main control device 50, the image processing unit 51 processes the image signal from the image pickup unit 10 and performs various image processing such as extraction of a partial image that can be a candidate for monitoring. The position analysis unit 52 analyzes the position of the moving body MB on the home PF based on the image information processed by the image processing unit 51. That is, in addition to the image pickup unit 10, the image processing unit 51 and the position analysis unit 52 cooperate with each other to function as a position detection unit PD that detects the position of the moving body MB on the home PF.

Of the main control device 50, the situation determination unit 53 includes a danger zone setting unit 53a and an alarm level setting unit 53b. The danger zone setting unit 53a divides the zone into zones (positions) in the station premises, and sets the degree of danger for each divided zone (danger zone). The alarm level setting unit 53b collates the danger level for each danger zone set by the danger zone setting unit 53a with the position of the mobile MB detected by the position detection unit PD, and the alarm to be notified by the speaker 20. Judge the degree (volume, etc.). That is, the situation determination unit 53 determines the situation in the station yard based on the detection information in the position detection unit PD. A specific example of setting the danger zone in the danger zone setting unit 53a will be described later with reference to FIG.

Of the main control device 50, the voice output circuit 54 drives the speaker 20 to perform notification based on the determination result regarding the alarm level in the situation determination unit 53.

Among the main control devices 50, the train presence determination unit 55 determines whether or not the train TR is present on the track TK by receiving a signal from the line presence confirmation sensor unit 30. Here, the train presence determination unit 55 can acquire information on the presence of the train TR as well as information on opening and closing the door of the train TR on the line, for example, by information from the presence confirmation sensor unit 30. It shall be. When the train presence determination unit 55 determines that the train TR is on the track TK and the door of the train TR is open, the train presence determination unit 55 transmits to that effect to the situation determination unit 53. When the door of the train on the line is open, the situation determination unit 53 stops the alarm operation by the speaker 20.

Of the main control device 50, the storage unit ME for storing various data may store, for example, information necessary for image analysis. Specifically, in addition to various data such as size and shape of a general person, image information of a general guide dog, wheelchair, stroller, silver car, etc., and image information when a person is accompanied by a guide dog. Or, image information or the like when a person is in a wheelchair may be stored. These various image information are appropriately called by the image processing unit 51, and the image data are compared to analyze whether or not there is a moving body MB corresponding to a person, a guide dog, or the like in the station yard. .. In the storage unit ME, information on articles that are permanently installed in the station yard from the beginning may be stored as information for excluding from the mobile MB.

In addition to the above, the station alarm device 100 has, for example, a station staff speaker PA and a display display unit DA as station staff notification units for notifying station staff SA in the station premises. , Installed in the station office SO. The station staff speaker PA and the display display unit DA are connected to the main control device 50, and notify the station staff SA in the station office SO according to the instruction from the main control device 50. Further, as a station staff notification unit for notifying the crew (driver or conductor) CR in the train, a communication device CD including a speaker and a display display unit is installed in the train TR. .. The communication device CD is capable of communicating with the main control device 50, and notifies the crew member CR in the train according to an instruction from the main control device 50.

Hereinafter, the alarm by the station alarm device 100 of the present embodiment will be described with reference to FIG. 3 and the like. In the present embodiment, the alarm level to be notified is determined according to the distance of the mobile MB detected in the home PF to the home end EG by the main control device 50 as the position detection unit PD exemplified in FIG. .. As a premise for this, first, the position detection is performed based on the image information (information read from the station STi on the image) as shown in FIG. 3 acquired by the image pickup unit 10. Specifically, from the reference line SP on the image of FIG. 3 corresponding to the home end EG of FIG. 1A, with respect to the direction of the arrow AR1 extending inward of the floor surface FLi on the image, from the reference line SP. The distance to the mobile MBi (user USi) is measured. For example, in the case of FIG. 3, the distance D1 from the tip of the foot of the user USi as the moving body MBi on the image to the reference line SP is measured so as to be a judgment target for determining the degree of danger and the degree of warning. NS. That is, as the measured distance D1 becomes shorter, the speaker 20 (see FIG. 1 and the like) provides notification with an increased alarm level. In other words, as the value of the distance D1 becomes smaller, an alarm sound indicating that the alarm level such as a louder sound, a higher sound, or a repeating sound with a shorter interval is increased is emitted from the speaker 20.

Hereinafter, with reference to FIG. 4, an example of setting the danger zone (risk degree) in the danger zone setting unit 53a will be described, and one aspect of the above-mentioned change in the alarm degree based on the danger degree will be described. FIG. 4 shows an example of a plurality of areas in which the area in the station yard is divided in order to determine the degree of danger. Specifically, five zones Z0 to Z3 and Zx are provided as regions on the image corresponding to the five regions A0 to A3 and Ax shown in FIG. 1 (A), and as shown in Table 1 below, each of them is provided. Different risk levels are set for each of zones Z0 to Z3 and Zx. Further, the alarm degree, that is, the mode of notification by the speaker 20, is determined in the alarm degree setting unit 53b according to the danger degree.

In Table 1 above, an example of the degree of change in the alarm degree is shown by the magnitude of the volume. Specifically, the zone Z1 corresponding to the level 1 region A1 (see FIG. 1 (A)) on the Braille block BB is set as level 1 (risk level 1, warning level 1) as a reference for starting an alarm. Zone Z0 inside zone Z1 (on the side away from the track) is set to level 0, which is considered safe, and if a moving object is present here, no alarm is issued. On the other hand, for zones Z2 and above outside zone Z1 (on the side closer to the track), the risk increases as the track approaches, and the alarm level is gradually increased accordingly, that is, the output volume from the speaker 20 is increased. If it is increased and there is a detection in the zone Zx where it is considered that there was an intrusion into the track, the notification is performed at the maximum volume for emergencies. Based on the association between the detection position and the alarm level (alarm mode) as described above, the notification with the alarm level changed is performed.

Hereinafter, an example of the operation of the station alarm device 100 according to the present embodiment will be described with reference to the flowchart of FIG. First, the main control device 50 confirms whether the train TR is in the track TK of the target home PF and the door of the train TR is open (step S100). When it is determined in step S100 that the door of the train TR is in the open state (step S100: Yes), it is the timing for the user to get on and off the train TR on the track, and it is not necessary to give an alarm. , Stand by without performing any processing related to the determination of the degree of danger. On the other hand, when it is determined in step S100 that the door of the train TR is in a state other than the open state (step S100: No), the main control device 50 is the image processing unit 51 which is a premise of the processing related to the determination of the degree of danger. Image processing (image analysis) is performed according to (step S101). That is, the presence or absence of the moving body MB is confirmed with respect to the image information acquired by the image pickup by the image pickup unit 10. If the moving body MBi on the image corresponding to the moving body MB is not detected as a result of the image analysis in step S101 (step S102: No), the process is terminated and the operation returns to the operation from step S100. On the other hand, when the mobile MB is detected in step S102 (step S102: Yes), the position of the mobile MBi on the image corresponding to the detected mobile MB with respect to the reference line SP is detected (step S103). .. More specifically, the position analysis unit 52 of the main control device 50 determines which region of the five zones Z0 to Z3 and Zx the detected mobile MBi belongs to. Next, the status determination unit 53 of the main control device 50 determines, as a result of the position detection in step S103, whether or not the state requires notification (step S104). That is, the situation determination unit 53 determines that if the mobile MBi is in the zone Z0, it is in a safe position and notification is unnecessary based on the setting associated with the danger zone setting unit 53a (step S104: No). ), The process related to the determination of the degree of danger is terminated, and the operation returns to the operation from step S100. On the other hand, if the mobile MBi is in any of the four zones Z1 to Z3 and Zx other than the zone Z0 (that is, if the risk level is 1 or higher), the situation determination unit 53 determines that notification is necessary. (Step S104: Yes).

When it is determined in step S104 that notification is necessary, the situation determination unit 53 first determines the degree of danger (step S105). That is, it is determined which of the four zones Z1 to Z3 and Zx exemplified in Table 1 the mobile MBi belongs to. Next, the situation determination unit 53 sets the notification (voice) level at the alarm level corresponding to the danger level determined in step S105 in the alarm level setting unit 53b (step S106), and the voice output circuit 54 sets the notification (voice) level. Notification is performed by driving the speaker 20 or the speaker PA for station staff to output sound at a set notification level, or by displaying on the display display unit DA (step S107).

When the voice output in step S107 is started, the main control device 50 confirms whether or not there is a position (zone) change due to the movement of the moving body MBi to be alarmed, that is, whether or not there is a change in the degree of danger (step S108). If there is no change in the position of the mobile MBi (step S108: No), the voice output (notification) at the notification level set in step S106 is continued (step S107). On the other hand, when the position of the moving body MBi changes (step S108: Yes), it is confirmed whether the moving body MBi has moved to a safe position, that is, whether or not it has moved to the zone Z0 (step S109). When it is determined that the mobile MBi has moved to the zone Z0 (step S109: Yes), the notification operation is stopped (step S110), the process related to the risk determination is terminated, and the operation from step S100 is started. return. On the other hand, in step S109, when it is determined that the mobile MBi has not moved to the zone Z0, that is, has moved to a region other than the zone Z0 having a risk level of 1 or higher (step S109: Yes), the situation determination unit 53 , Again, the series of alarm operations from the risk determination process is repeated (steps S105 to S109) until the mobile MBi moves to the zone Z0 considered to be a safe position.

With the above configuration, for example, when the mobile MB (MBi) that was in the zone Z1 moves to the zone Z0 that is considered safe, the alarm ends, but the zone Z2 or zone with a higher risk is higher. If you move to Z3, the alarm will sound louder. As a result, the user US, which is a mobile MB, can recognize whether he / she is moving toward a safer side or a more dangerous side. In addition, the station staff SA in the station office SO can recognize the existence of the user US or the like, which is a mobile MB in a dangerous state.

As described above, in the station alarm device 100 according to the present embodiment, in the status determination unit 53 of the main control device 50, the position detection unit PD based on the position detection information of the moving body MB (MBi) in the station yard. The situation is determined, and the alarm level is changed for the notification by the speaker 20 as the notification unit, the station staff speaker PA, and the display display unit DA according to the determination result made by the situation determination unit 53. As a result, whether the mobile MB is moving toward the more dangerous side or the safer side can be determined by the user (pedestrian) himself or the station staff who is the mobile MB. Etc. can be recognized. That is, it is possible to prevent the train from falling into the railroad track more reliably, and it is possible to ensure safety in the station yard.

Further, in the above, although the image pickup unit (imaging camera) 10 for acquiring image information is applied as a part of the position detection unit PD, for example, a treading member may be used instead of the image pickup unit 10. For example, by laying a treading member on the floor FL and the treading member being stepped on by the moving body MB, it is possible to detect the position and movement of the moving body MB, and the treading member can be identified for each zone. , The alarm degree is changed based on the detected position information of the moving body MB, and the same configuration can be considered.

In addition to the above, it is also conceivable to apply a distance image device equipped with a distance measuring sensor, for example, as the image pickup unit 10. In this case, it becomes possible to capture the moving body MB in three dimensions. Specifically, for example, pulsed light from a laser pulse or the like is scanned in the target area, the reflected light from the moving body MB existing in the target area is received, and the distance to the moving body MB is measured, and the measurement result is obtained. By generating a distance image based on, the stereoscopic information of the moving object MB can be acquired.

[Second Embodiment]
Hereinafter, the station alarm device according to the second embodiment will be described with reference to FIG. 6 and the like. 6 and 7 show the configuration of each part of the station alarm device 200 according to the present embodiment and the state of the station yard where the station alarm device 200 is installed. The station alarm device 200 according to the present embodiment is a modification of the station alarm device 100 of the first embodiment, and the components common to the station alarm device 100 are designated by the same reference numerals and are detailed. The explanation is omitted. The present embodiment is different from the first embodiment in that, in addition to the speaker 20 and the like, the portable SM attached to the mobile MB (user US) functions as a notification unit. As the portable SM, for example, tablet devices such as mobile phones and smartphones (smartphones), and other information that can be notified by voice, light, vibration, etc., and that can identify the mobile MB (user US). Various media such as dedicated equipment included can be considered. Further, here, in order to make the mobile phone SM function as a notification unit, the mobile phone SM and the main control device 50 of the station alarm device 200 can communicate with each other via a public line IN such as an Internet line. ..

Further, the station alarm device 200 obtains the image information of the mobile body MB possessing the portable SM immediately before heading to the home PF of the station ST, as shown in FIG. 6, the entrance / exit EN to the home PF. A camera CA is provided on the upper side of the ticket gate GM to take an image of the user US. Further, in the image processing unit 51, an image for collating the image information acquired by the camera CA with the image information acquired by the image pickup unit 10 to determine that the moving body MB is the same object (same person). A matching determination unit 51a is provided. In the image matching determination unit 51a, an existing image matching method can be appropriately used. For example, various methods for identifying a moving object MB such as a person's contour, size, clothes, and face from the acquired image information can be used. By extracting the characteristic items of the above and collating and comparing these items, it is possible to determine whether or not they are the same thing (the same person).

Hereinafter, a series of operations of the station alarm device 200 according to the present embodiment will be described. First, when the user US, which is a mobile MB, passes through the ticket gate GM of the entrance / exit EN, the image information of the user US necessary for image matching is acquired by the camera CA, and is stored in the storage unit ME of the main control device 50. Temporarily stored. Next, the main control device 50 of the station alarm device 200 determines the degree of danger based on the image information acquired by the image pickup unit 10 in the same manner as in the case of the first embodiment. At this time, the image processing unit 51 also performs image determination by the image matching determination unit 51a. When it is determined from the image determination by the image matching determination unit 51a that the mobile MB, which is presumed to match the information acquired when passing through the ticket gate GM, is in the region of danger level 1 or higher, the main control device 50 determines. , A signal according to the degree of danger is transmitted to the portable SM via the public line IN. The portable SM that receives the signal notifies the user US, who is the owner, of the notification according to the degree of danger. As for the mode of notification, in addition to the one that changes the voice, the one that changes the vibration or the light, or the one that combines these may be used for the notification.

In order to achieve the above-mentioned notification by image matching, it is assumed here that the information for linking the portable SM and the user US who owns the portable SM is pre-registered. Various types of information are assumed to be pre-registered. For example, when using the passage of the ticket gate GM as described above, as illustrated in FIG. 8A, the information is passed through the ticket gate GM. The ID information of the IC card including the commuter pass information used and the ID information of the mobile phone SM composed of smartphones (smartphone ID information) are linked, pre-registered, and stored in the storage unit ME. It is possible to keep it. In this case, when the user US passes through the ticket gate GM using the IC card, if the ID information of the smartphone associated with the ID information of the IC card exists in the pre-registration data, the camera CA Is activated to acquire image information (image data α, β ... In FIG. 8A), and by further associating the acquired image information with a user US who possesses a pre-registered portable SM. , Can be linked with the image information of the user US.

Further, as a method other than the one using the ID information of the IC card as described above, for example, as shown in FIG. 8B, the image information previously acquired for the user US (image data A in FIG. 8B). , B ...) can be registered in advance. In this case, it is not always necessary to take an image by the camera CA, but for example, the image information of the camera CA is also acquired, and both the image information registered in advance and the image information immediately before heading to the home PF are obtained. It may be used as information for identifying the user US. In this case, it is conceivable that both image information can be used for the human face and the like, and the immediately preceding image information is used for the clothes. Further, in the case of the embodiment shown in FIG. 8B, for example, the camera CA acquires images of all users, and when the image information of a person matching the image information registered in advance is detected, the camera CA carries the image. It may be used to notify the object SM.

Also in this embodiment, by changing the alarm level, it is possible to recognize whether the mobile MB is moving toward the more dangerous side or the safer side, and it is more reliable. It is possible to prevent the train from falling into the railroad track, and to ensure safety in the station yard. In particular, in the present embodiment, by making the portable SM attached to the user US function as a notification unit, it is possible to individually notify each user US using a mobile phone, a smart phone, or the like.

[Third Embodiment]
Hereinafter, the station alarm device according to the third embodiment will be described with reference to FIG. 9. This embodiment is different from the other embodiments described above in that the method of dividing the area in the station yard for setting the degree of danger and the setting of the alarm degree and the like can be changed according to the situation. The station alarm device according to the present embodiment is a modification of the station alarm device 100 or the like of the first embodiment, and is the same as the case of the above embodiment except for the setting of the risk level and the like as described above. Therefore, the components common to the station alarm device 100 are designated by the same reference numerals as shown in FIG. 9A, and detailed description thereof will be omitted.

For example, there is a possibility that some station users intentionally or maliciously try to enter the railroad track from the platform of the station for the purpose of mischief or terrorism. If it is believed that such a person exists, it is desirable to inform the station staff and the train crew who are trying to enter the station as soon as possible. Therefore, in the present embodiment, as one of the situation judgments in the alarm device of the station, the movement of the moving body is analyzed, and the situation judgment is performed based on the analyzed result.

FIG. 9A is a block diagram of the configuration of the station alarm device 300 according to the present embodiment, and is a diagram corresponding to FIG. 2 and the like. In the present embodiment, the status determination unit 53 of the main control device 50 has a mobile analysis unit 53c for determining whether or not to change the setting such as the alarm level. The moving body analysis unit 53c performs a process of analyzing how the moving body moves based on the moving body image (moving image) continuously acquired by the image processing. Here, in particular, as one of the movements of the moving body by the moving body analysis unit 53c, the velocity component in the direction toward the home end of the moving body (opposite direction of the arrow AR1) is analyzed. The situation determination unit 53 determines the situation based on the velocity component analyzed by the mobile body analysis unit 53c. That is, it is determined whether or not to change the method of dividing the area in the station yard for setting the degree of danger and the setting such as the degree of warning.

9 (B) and 9 (C) are diagrams for explaining an example of a change (zone shift) in the area division in the station yard in the station alarm device 300, and FIGS. 9 (B) are normal situations. An example of the area division in the station yard below is shown. On the other hand, FIG. 9C shows an example of a case where the area division in the station yard is changed from the state of FIG. 9B under a specific situation (when the zone shift is performed). Here, the state shown in FIG. 9B is assumed to be the same as the case illustrated in FIG. The state shown in FIG. 9C is a zone shift from the state shown in FIG. 9B for each zone Z0 to Z3 and Zx based on the judgment of the situation judgment unit 53 based on the analysis result of the velocity component by the mobile body analysis unit 53c. This is an example of the state in which. In the case shown in FIG. 9 (C), as compared with the case of FIG. 9 (B), the zone Z0, which is considered to be safe and has a level of 0, is limited to the innermost area (the side away from the track) from the Braille block. The area on the side close to the Braille block, even if it is inside, is set to zone Z1 which is level 1 (risk level 1, warning level 1) as a reference for starting an alarm. Further, the area on the Braille block is designated as Zone Z2, and the area outside the Braille block (on the side approaching the railroad track) of the platform is designated as Zone Z3. The zone Zx is the same.

In this example, whether or not to change the divided region as described above is performed based on the velocity component analyzed by the mobile body analysis unit 53c, as described above. For example, a threshold value is set in advance for the value of the velocity component, and when the analyzed velocity component is sufficiently small (smaller than the threshold value) as shown by the arrow S1 shown in FIG. 9B, the normal setting is set. If the area division is not changed and the area is sufficiently large (larger than the threshold value) as shown by the arrow S2 shown in FIG. 9C, there is a possibility that there is a person who intentionally tries to enter the line. Judging that it is expensive, change the area division. As a result, it is possible to start an alarm with an increased alarm level from an early stage.

There are various possibilities for setting the above threshold value, but for example, it is conceivable to use the speed at which a human normally runs toward something as a reference. Further, the degree of change of the threshold value and the area division (degree of zone shift) may be changed in a plurality of stages or continuously.

In the above example, by shifting each zone Z0 to Z3 and Zx, an alarm with an increased alarm level is started from an early stage, but the present invention is not limited to this, and for example, each zone Z0 to Z0. Z3 and Zx are not shifted and remain in the state shown in FIG. 9B, while a table having a different mapping from the mapping table shown in Table 1 as shown in Table 2 below is used as a danger zone. It may be dealt with by preparing it in the setting unit 53a and replacing the table as appropriate. That is, the setting of the value of the degree of danger and the degree of warning for each zone Z0 to Z3 and Zx may be changed.

Further, regarding the above-mentioned change in the setting of the alarm level and the like, it is considered that the notification to the station staff and the like is particularly important. It may be performed only for the station staff notification unit.

In addition, in the above example, the velocity component in the direction toward the home end of the mobile body is extracted by the analysis of the movement method of the moving body in the moving body analysis unit 53c. In addition to this, it is conceivable to perform various analyzes on the gait of the moving body, for example, it is confirmed that the gait is clearly different from the usual one, such as a staggered foot with a large fluctuation. Even in such a case, the alarm level or the like may be changed. This is because there is a high possibility that the user is intoxicated or sick, and the possibility of falling onto the railroad track is increasing.

Also in this embodiment, by changing the alarm level, it is possible to recognize whether the moving object is moving toward the more dangerous side or the safer side, and more reliably. It is possible to prevent the train from falling into the railroad track, and to ensure safety in the station yard. In particular, in the present embodiment, the possibility of falling onto the railroad track is increased due to the presence of a person who intentionally or maliciously tries to enter the railroad track from the platform of the station, a drunken person, a suddenly ill person, or the like. , Station staff and train crews trying to enter the station can be notified at an early stage.

〔others〕
The present invention is not limited to the above embodiment, and can be implemented in various embodiments without departing from the gist thereof.

First, in the above embodiment, in order to make it easier to understand the explanation of the change in the mode of notification, for example, as shown in FIG. 4, it is divided into a plurality of (five) regions and changed stepwise. The number of stages is not limited to five, and may be divided into more or less stages. Alternatively, the mode of notification may be continuously changed according to the continuous change in the position of the moving body.

Further, in the above, for example, in the first embodiment, the mode of notification is changed by changing the voice, particularly the volume, but the present invention is not limited to this, or in addition to this, light or vibration is used. It may be a thing. Specifically, for example, it is conceivable to provide a lighting device on the floor FL with LEDs or the like and change the brightness, blinking interval, color, or the like of the lighting to show a change in the alarm level. It is also conceivable to provide a member that causes vibration on the floor surface FL to change the degree of vibration.

Further, the arrangement of the image pickup unit 10 is not limited to the case where the image pickup unit 10 is installed on the upper side of the home PF to take an image on the lower side as described above, and can be various modes capable of taking an image of a target range. For example, it is conceivable to install an imaging unit on a platform located on the opposite side of the platform to be imaged.

Further, the correspondence relationship between the degree of danger and the degree of alarm (for example, volume) may be changed depending on the situation. In the above example, for example, if the risk level is 1, the alarm level is 1, that is, the value of the risk level and the value of the warning level match, but the alarm level setting unit 53b of the main control device 50 has a correspondence relationship. May be changed. For example, when speakers as a notification unit are arranged at a plurality of locations in one station, it is conceivable that the voice is harder to hear than other locations depending on the location of the speakers. In addition, the ease of listening may change depending on the time of day. In order to deal with such a situation, when a predetermined condition is satisfied, the value of the alarm degree when it is determined that the degree of danger is 1 or more may be set to be higher than the value of the degree of danger.

10 ... Imaging unit, 20 ... Speaker, 30 ... On-line confirmation sensor unit, 50 ... Main control device, 51 ... Image processing unit, 51a ... Image matching determination unit, 52 ... Position analysis unit, 53 ... Situation judgment unit, 53a ... Danger Zone setting unit, 53b ... Alarm degree setting unit, 53c ... Mobile analysis unit, 54 ... Voice output circuit, 55 ... Train presence determination unit, 100 ... Alarm device, 200 ... Alarm device, 300 ... Alarm device, A0-A3 Ax ... Area, AR1 ... Arrow, BB ... Braille block, BD ... Boundary, CA ... Camera, CD ... Communication device, CR ... Crew, D1 ... Distance, DA ... Display display, EG ... Home end, EN ... Doorway, EP ... end side part, FL ... floor surface, FLi ... floor surface, GM ... ticket gate, IN ... public line, MB ... mobile body, MBi ... mobile body, ME ... storage unit, PA ... station staff speaker, PD ... position Detector, PF ... Home, S1, S2 ... Arrow, SA ... Station staff, SM ... Portable items, SO ... Station office, SP ... Reference line, ST ... Station, STi ... Station, TK ... Line, TR ... Train, US ... user, USi ... user, Z0-Z3, Zx ... zone

Claims (11)

A position detector that detects the position of a moving object moving in the station yard,
A situation judgment unit that determines the situation inside the station based on the information from the position detection unit,
It is equipped with a notification unit that notifies according to the determination result in the situation determination unit .
The notification unit includes a portable object attached to the moving body, and includes a portable object.
The situation determination unit is a station alarm device that determines a situation by collating the information of a person associated with the information of the portable object with the information from the position detection unit. The situation determination unit determines the alarm level to be notified by the notification unit according to the distance of the moving body to the home end detected by the position detection unit .
The station alarm device according to claim 1, wherein the notification unit provides notification with a change in the alarm level according to a determination result in the situation determination unit. The station alarm device according to any one of claims 1 and 2, wherein the notification unit performs notification with a higher alarm level as the distance from the platform end to the moving body becomes shorter. The situation determination unit determines the alarm level to be notified by the notification unit based on the danger level determined for each of a plurality of areas in the station yard and the position of the moving object detected by the position detection unit. The station alarm device according to any one of claims 1 to 3 to be determined. The station alarm device according to any one of claims 1 to 4, wherein the notification unit indicates a change in the alarm level to be notified by changing at least one of sound, vibration, and light. The position detection unit has an image pickup unit that acquires image information.
The situation determination unit performs situation judged by collating the image information of the person to be acquired by the portable object image information and the imaging portion of the person tied to the information as the notification unit, according to claim 1 The station alarm device according to any one of 5 to 5. The station alarm device according to any one of claims 1 to 6 , wherein the situation determination unit stops the alarm operation by the notification unit when the door of the train on the line is open. The station alarm device according to any one of claims 1 to 7 , wherein the situation determination unit has a mobile body analysis unit that analyzes how the moving body moves. The station alarm device according to claim 8 , wherein the situation determination unit determines a situation based on a speed component toward the home end of the moving body analyzed from the movement of the moving body by the moving body analysis unit. The station alarm device according to claim 9, wherein the situation determination unit changes the determination criterion of the alarm degree according to the difference in the speed component analyzed by the mobile body analysis unit. The station alarm device according to any one of claims 1 to 10 , wherein the notification unit includes a station staff notification unit that notifies station staff in a station yard and crew members in a train.

Images