Alarm device of station and alarm method

Abstract

To provide an alarm device that can be installed flexibly without being affected by characteristics such as a shape of a station platform and reduce installation costs and installation load.SOLUTION: An alarm device of a station includes: a sensor having a detection unit that detects target objects and trains, an on-rail determination unit that determines the presence of the train based on on-rail information, which is information relating to the presence of the train detected by the detection unit, and a location determination unit that calculates which area sectioned by initial areas the target object is located in based on the object information, which is information relating to the object detected by the detection unit, and the initial areas, which are areas sectioning the station platform by risk levels, and determines whether an alarm is required; a notification unit that notifies based on the location determination results output by the sensor; and a data communication unit that communicates with external devices and systems.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a station alarm device and alarm method. [Background technology]

[0002] BACKGROUND ART In recent years, there has been progress in the development of facilities, devices, systems, etc. for preventing passengers from falling onto the tracks on station platforms.

[0003] For example, Patent Document 1 discloses a station alarm device that changes the way it notifies depending on the situation within the station. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2018-197023 Summary of the Invention [Problem to be solved by the invention]

[0005] The above-mentioned warning device is equipped with a situation judgment unit that judges the situation within the station premises based on the position detection information of the moving object by the position detection unit, and an alarm unit that changes the alarm level and issues an alarm depending on the judgment result made by the situation judgment unit, thereby preventing moving objects moving within the station premises from falling onto the tracks. However, when installing it within the station premises, an overall design that is tailored to the structure of the station where it will be installed is required, which increases the effort and cost of installation.

[0006] The present disclosure has been made to solve the problems described above, and aims to enable flexible installation configurations without being affected by characteristics such as the shape of station platforms, thereby reducing implementation costs and burdens. [Means for solving the problem]

[0007] The station warning device according to the present disclosure includes a detection unit that detects an object and a train, an occupancy determination unit that determines the presence of a train based on occupancy information, which is information regarding the presence of the train detected by the detection unit, a position determination unit that calculates in which area of the areas divided by risk level in an initial area, which is an area obtained by dividing the station platform by risk level, the object is present based on object information, which is information regarding the object detected by the detection unit, and determines whether notification is necessary, a sensor having the above, a notification unit that notifies based on the position determination result output from the sensor, and a data communication unit that communicates with external devices and systems.

[0008] In addition, the station warning method according to the present disclosure includes a step of detecting an object and a train by a detection unit, a step of determining the presence of a train based on occupancy information, which is information regarding the presence of the train detected by the detection unit, a step of setting a notification target area based on an initial area, which is an area obtained by dividing the station platform by risk level, and a determination result output from the occupancy determination unit, a step of calculating in which area of the areas divided by risk level in the initial area the object is present based on object information, which is information regarding the object detected by the detection unit, and determining whether notification is necessary, a step of notifying based on the position determination result determined by the position determination unit, and a step of communicating with external devices and systems.

Effect of the Invention

[0009] According to the station warning device of the present disclosure, it is possible to have a flexible installation form without being affected by characteristics such as the shape of the station platform, and to reduce the introduction cost and introduction load.

[0010] According to the station warning method of the present disclosure, it is possible to have a flexible installation form without being affected by characteristics such as the shape of the station platform, and to reduce the introduction cost and introduction load.

Brief Description of the Drawings

[0011]

Figure 1

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Modes for Carrying Out the Invention

[0012] Hereinafter, embodiments will be described in detail with reference to the drawings. Note that the embodiments described below are examples. Also, the embodiments can be executed in appropriate combination.

[0013] Embodiment 1. First, the configuration of the alarm device 100 according to the present disclosure will be described with reference to FIGS. 1 to 10.

[0014] Figure 1 is a configuration diagram of the alarm device 100 according to the present embodiment. As shown in Figure 1, the alarm device 100 according to the present disclosure includes, for example, a notification unit 1, a sensor 2, a maintenance function unit 3, a sensor log collection unit 4, and a data communication unit 5. The alarm device 100 is installed, for example, on the platform of a station where it is difficult to install platform doors due to reasons such as the shape of the station, for the purpose of preventing passengers from falling on the platform.

[0015] Figure 2 is a hardware configuration diagram of the alarm device 100 according to the present disclosure. The alarm device 100 includes a processor 110 such as a CPU (Central Processing Unit), a memory 120 such as a RAM (Random Access Memory), an input interface (I / F) 130, and a display 140. For example, the sensor 2 is realized by the processor 110 executing a program stored in the memory 120. However, these may be realized by, for example, a plurality of processors 110 cooperating with each other.

[0016] Figure 3 is an external view of the alarm device 100 according to the present embodiment. As shown in Figure 3, the alarm device 100 has a pole shape. Note that the shape of the alarm device 100 is not limited to the pole shape shown in Figure 3, and may also be a fixed fence shape, a fixed fence shape with a sign, etc. as shown in Figures 4 and 5. In the case of the fixed fence shape with a sign shown in Figure 5, for example, the display unit 12 of the notification unit 1 is provided as shown in Figure 5, and a display such as "It is dangerous to walk at the edge of the platform!!" is shown on the display unit 12, and the alarm device 100 notifies the surroundings.

[0017] Figure 6 is a configuration diagram of the notification unit 1. As shown in Figures 3 and 6, the notification unit 1 includes, for example, a light emitting unit 11, a display unit 12, and an audio output unit 13. The notification unit 1 notifies based on the position determination result output from the output unit 26 of the sensor 2 described later.

[0018] The light-emitting unit 11 has a function of emitting light. The type of light is not particularly limited, and it is preferable to use, for example, an LED (Light Emitting Diode). The lighting method may be changed depending on the situation, for example, by flashing when the danger level is high, or by reducing the amount of light at night compared to daytime.

[0019] The display unit 12 displays warnings and the like based on the output result of the output unit 26, which will be described later. The display unit 12 is, for example, a display, but any type of device can be used as long as it can display warnings and the like.

[0020] The audio output unit 13 is a device that issues warnings and other notifications by audio, and is, for example, a speaker. Examples of speaker types include directional speakers that can emit sound only in a specific direction, and speakers that emit sound over a wide area. For example, if alarm devices 100 are installed adjacent to each other on a station platform, it may be unclear which alarm device 100 is emitting sound. In such cases, using a directional speaker can prevent sounds from mixing. Therefore, it is advisable to select a speaker taking into consideration the characteristics of the station platform and the location where the alarm device 100 is installed.

[0021] 3 shows a configuration in which the notification unit 1 includes the light-emitting unit 11, the display unit 12, and the audio output unit 13, but this is not limiting. The notification unit 1 of the alarm device 100 only needs to include means capable of notifying the outside, that is, at least one of the light-emitting unit 11, the display unit 12, and the audio output unit 13, and unnecessary means may be omitted. Also, while FIG. 3 shows the alarm device 100 configured in the order of the light-emitting unit 11, the display unit 12, and the audio output unit 13 from top to bottom, the order and the locations of the units are not limited to this and are not particularly limited.

[0022] Sensor 2 detects objects such as passengers and personal belongings on the station platform, as well as trains, and determines the location of trains and objects based on the detection results. Details of Sensor 2 will be described later using Figure 7.

[0023] The maintenance function unit 3 collects information indicating that maintenance is required. Here, the information indicating that maintenance is required refers to information that requires maintenance, such as an error occurring in the notification unit 1 and the sensor 2, or the output from the sensor 2 being extremely low. In addition, based on the information from the sensor log collection unit 4 described later, when it is determined that an abnormality has occurred in the sensor 2 or when the driving time of the sensor 2 exceeds a predetermined time, the maintenance function unit 3 determines that the sensor 2 is in a state requiring maintenance. The reasons for the driving time of the sensor 2 exceeding the predetermined time include, for example, when the sensor 2 is dirty, when an object is placed near the sensor 2 or a person is present for a long time, blocking the emitted light of the sensor 2, etc. In such a case, the maintenance function unit 3, for example, displays a message on the display unit 12 of the notification unit 1 indicating that it is in a state requiring maintenance.

[0024] The sensor log collection unit 4 collects the driving information of the sensor 2. The driving information collected by the sensor log collection unit 4 is sensor log, that is, information tracing the change in the detection state of the sensor. The sensor log collection unit 4 records and collects the timing of the state change of the signal output by the sensor 2, that is, the timing when it changes from ON to OFF or from OFF to ON. The sensor log collection unit 4 may record not only the timing such as the date and time but also the signal type and ON / OFF information together. In this way, by the sensor log collection unit 4 collecting the driving information of the sensor 2, the soundness of the alarm device 100 can be confirmed. In addition, by collecting the driving information of the sensor 2, it can also be utilized for the state analysis of other systems related to the alarm device 100. Although FIG. 1 shows the alarm device 100 equipped with the sensor log collection unit 4, it is not limited to this and may be omitted. By the alarm device 100 being equipped with the sensor log collection unit 4, as described above, it becomes easier to confirm the soundness of the alarm device 100.

[0025] The data communication unit 5 communicates with devices, systems, etc. external to the alarm device 100. The data communication unit 5 of the alarm device 100 is connected to and communicates with a management PC installed in a station office, for example, via a network within the station. The communication between the alarm device 100 and external devices, systems, etc. will be described in detail below.

[0026] The configuration of the sensor 2 will be described with reference to Fig. 7. Fig. 7 is a configuration diagram of the sensor 2. As shown in Fig. 7, the sensor 2 includes, for example, a detection unit 21, a detection information receiving unit 22, an on-rail determination unit 23, a notification target area setting unit 24, a position determination unit 25, an output unit 26, a sensor information setting unit 27, and a control unit 28.

[0027] The detection unit 21 detects objects on the platform, such as passengers and personal belongings, and trains. Specifically, the detection unit 21 detects the position and size of the object based on the difference between the emission time of light emitted by the detection unit 21 and the detection time of reflected light that returns from the object. In the case of the sensor 2 that detects objects by emitting laser light, the type of laser light emitted by the detection unit 21 can be, for example, infrared light.

[0028] Furthermore, the sensor 2 of the alarm device 100 may be provided with a plurality of detection units 21. That is, for example, a detection unit 21 that detects objects and a detection unit 21 that detects trains may be provided separately. If the sensor 2 is capable of detecting both objects and trains, the alarm device 100 may be provided with only one detection unit 21, as in the configuration shown in FIG. 7. The detection unit 21 outputs detection results related to the detected objects and trains to the detection information receiving unit 22.

[0029] The sensor 2 equipped with the detection unit 21 is preferably a 2D sensor that emits laser light in a 2D shape or a 3D sensor that emits laser light in a 3D shape. Furthermore, the installation position of the sensor 2 is preferably 350 mm to 500 mm above the installation surface where the alarm device 100 is installed. In order to detect the object without being affected by the height of the object or the like, it is necessary to detect the feet of the object. In this case, it is desirable that the installation position of the sensor 2 is close to the installation surface. On the other hand, when the installation position of the sensor 2 is too close to the installation surface, it is likely to be affected by floor reflection depending on the conditions on the platform such as rain and snow, and the possibility of false detection increases. From the above, by setting the installation position of the sensor 2 to 350 to 500 mm above the installation surface where the alarm device 100 is installed, the influence of floor reflection can be suppressed, and the detection unit 21 can detect the object regardless of the height of the object.

[0030] When detecting an object, the detection unit 21 emits laser light toward the platform side of the station, and when detecting the presence of a train, that is, the occupied track, it emits laser light toward the track side. The direction of the laser light emitted by the detection unit 21 is controlled by a control unit 28 described later.

[0031] The detection information receiving unit 22 inputs the detection result of the detection unit 21. The detection result input from the detection information receiving unit 22 includes at least object information regarding an object such as a passenger or a carried item and occupied track information regarding the occupied track of the train. The detection information receiving unit 22 outputs the occupied track information of the input detection result to the occupied track determination unit 23 and outputs the object information of the detection result to the position determination unit 25. Note that the detection information receiving unit 22 may output the input detection result to the occupied track determination unit 23 and the position determination unit 25.

[0032] The on-line determination unit 23 determines the presence of the train from the information regarding the presence of the train on the track detected by the detection unit 21, that is, the on-line information. Note that the on-line information may include not only the information regarding the presence or absence of the train on the track but also the information regarding the position of the train. That is, the on-line determination unit 23 determines from the on-line information input from the detection information receiving unit 22 not only whether a train exists on the track but also includes the position of the train. Here, the position of the train determined by the on-line determination unit 23 from the on-line information includes, for example, being in a position close to the station but not having arrived at the station, arriving at the station and preparing to stop, stopping at the station, and being in the middle of departing from the station.

[0033] The on-line determination unit 23 determines the on-line state of the train from the on-line information and outputs the determination result to the notification target area setting unit 24. Note that the on-line determination unit 23 is not limited to the on-line information of the detection result detected by the detection unit 21 of the sensor 2, and may use the on-line information detected by a sensor or a camera capable of detecting the presence of a train on the track to determine the presence of the train. Alternatively, the on-line determination unit 23 may determine the presence of the train using the on-line information of the detection result detected by the detection unit 21 of the sensor 2 and the on-line information detected by a sensor or a camera capable of detecting the presence of a train on the track. In this way, by using not only the on-line information of the detection result detected by the detection unit 21 but also a plurality of on-line information, the presence of the train can be determined with high accuracy.

[0034] The notification target area setting unit 24 stores the initial area in advance as an initial setting, and sets the notification target area from the initially stored initial area and the determination result output from the on-line determination unit 23. Here, the initial area is an area obtained by dividing the platform of the station according to the degree of danger. Generally, areas with higher degrees of danger are set in order from the side closer to the track. Note that the initial area stored in advance by the notification target area setting unit 24 does not necessarily have to be stored in advance, and may be acquired from the outside.

[0035] The initial areas prestored by the notification target area setting unit 24 will be described with reference to FIG. 8. FIG. 8 is a view of the home and the railway line where the warning device 100 is installed, seen from above. The dangerous area, the warning area, and the safe area are shown in order from the railway line side, and each area is shaded and illustrated. As shown in FIG. 8, the notification target area setting unit 24 prestores the initial areas classified by danger level. In the example shown in FIG. 8, the area closest to the railway line is set as the dangerous area with a high danger level, and the warning area and the safe area are set in order as the danger level decreases as the distance from the railway line increases. Note that in FIG. 8, an example of classifying the initial areas prestored into three areas, namely the dangerous area, the warning area, and the safe area, is shown, but this is just an example, and the number of classifications, the names of each area, etc. are not particularly limited. Also, in FIG. 8, an example of setting the widths of each area to be equal is shown, but this is also just an example. In the initial areas, the size of the area occupied by each classified area is not particularly limited. For example, the area occupied by the area closest to the railway line may be set wider than the other areas.

[0036] FIG. 9 is an external view of a station platform where a Braille block with an inner line is introduced, and FIG. 10 is an external view of a station platform where a CP (Color Psychology) line is introduced. Note that the colored portions in FIG. 10 indicate the CP lines. As shown in FIGS. 9 and 10, when the warning device 100 is provided on the platform of a station where a Braille block with an inner line and a CP line are introduced, the notification target area setting unit 24 may set and store the initial areas with the CP line as the dangerous area, the area from the CP line to the inner line as the warning area, and the outside of the inner line as the safe area.

[0037] Return to the description of the notification target area setting unit 24. The notification target area setting unit 24 sets the notification target area based on the initially stored initial area and the determination result output from the on-line determination unit 23. For example, in the determination result output from the on-line determination unit 23, if it is determined that the train is approaching the station, the notification target area setting unit 24 widens the area occupied by the dangerous area in the initial area to set the notification target area. That is, the notification target area setting unit 24 widens the area of the area closest to the track set in the initial area based on the initially stored initial area and the determination result output from the on-line determination unit 23 to set the notification target area. On the other hand, in the determination result output from the on-line determination unit 23, if it is determined that the train has arrived at the station and is stopped, the notification target area setting unit 24 narrows the area occupied by the dangerous area in the initial area to set the notification target area. Also, when the presence of the train cannot be confirmed from the determination result output from the on-line determination unit 23, the notification target area setting unit 24 sets the initial area as the notification target area. That is, when no change to the initial area is required based on the determination result output from the on-line determination unit 23, the notification target area setting unit sets the initially stored initial area as the notification target area. From the above, the notification target area setting unit 24 changes the area occupied by each area in the initial area according to the situation, position, etc. of the train in the determination result based on the initially stored initial area and the determination result output from the on-line determination unit 23, and sets the notification target area. The notification target area setting unit 24 outputs notification target area information, which is information regarding the set notification target area, to the position determination unit 25.

[0038] Incidentally, the notification target area setting unit 24 has been described as setting the notification target area by widening the area of the area closest to the track in the initial area when it is determined in the determination result output from the on-line determination unit 23 that the train is approaching the station. However, for example, an area where false detection occurs due to shaking of the car body or the like may be excluded. That is, the notification target area may be set by excluding an area where false detection occurs due to shaking of the car body or the like from the area of the area closest to the track. This can prevent false detection due to shaking of the train or the like. The area on the platform where false detection occurs due to shaking of the car body or the like may be stored in advance in the notification target area setting unit 24 or a storage unit (not shown).

[0039] Further, the notification target area setting unit 24 may add information regarding the necessity of notification by the notification unit 1 to the notification target area to be set and output it to the position determination unit 25. For example, as shown in FIG. 8, when the platform of the station is divided into a dangerous area, a warning area, and a safe area according to the degree of danger, the dangerous area requires notification, and the warning area and the safe area do not require notification. The notification target area setting unit 24 adds information regarding the necessity of notification to the notification target area and outputs it to the position determination unit 25.

[0040] The position determination unit 25 calculates in which area of the notification target area the object exists by using the object information regarding the object detected by the detection unit 21 and the notification target area information output from the notification target area setting unit 24. That is, the position determination unit 25 calculates in which area of the notification target area the object detected by the detection unit 21 exists, and determines whether the object exists in an area where notification is required. For example, when it is calculated from the detection result and the target area information that the object exists in the dangerous area, the position determination unit 25 determines that notification is required and outputs the position determination result to the output unit 26. Here, the position determination result also includes the calculation result of calculating in which area of the notification target area the object exists. On the other hand, even when the position determination unit 25 determines that notification is not required, the position determination result may be output to the output unit 26.

[0041] The output unit 26 outputs the position determination result output from the position determination unit 25 to the notification unit 1.

[0042] The sensor information setting unit 27 sets sensor information which is information regarding the sensor 2. Here, the sensor information refers to, for example, information regarding the sensitivity of the detection unit 21, information regarding the detection range of the laser light emitted by the detection unit 21, and the like. Note that the sensor information may be input with a value determined in advance at the time of factory shipment. Further, the sensor information setting unit 27 may include an information input unit (not shown) so that the sensor information can be manually input. When it is necessary to change the sensor information by the user, the sensor information is changed from the information input unit. Further, a receiving unit may be provided in the sensor information setting unit 27, and when it is necessary to change the sensor information by someone other than the user, information indicating that the sensor information needs to be changed may be received by the receiving unit.

[0043] The control unit 28 controls the detection unit 21 based on the detection unit control information. Here, the detection unit control information is information regarding the control of the detection unit 21, and includes, for example, information regarding the timing of controlling the detection unit 21, information regarding the emission direction of the laser light emitted by the detection unit 21, and information regarding the emission time of the laser light. Note that the detection unit control information is stored in the control unit 28 in advance. The detection unit control information includes, for example, information regarding timing such as outputting a signal for prompting the operation of the detection unit 21, that is, a detection unit operation signal, to the detection unit 2 at intervals of 30 seconds. However, the timing of 30 seconds is an example and is not limited thereto. The control unit 28 controls so as to output the detection unit operation signal to the detection unit 21 and operate the detection unit 21 based on the detection unit control information stored in advance.

[0044] Note that the control unit 28 does not necessarily have to store the detection unit control information in advance. For example, a storage unit (not shown) may be provided in the warning device 100 and the control unit 28 may obtain the information from the storage unit. Further, the control unit 28 is not limited to the case of controlling the detection unit 21 based on the information stored in advance. For example, when the operation of the detection unit 21 is requested from an external source such as a user or a management server, the control unit may control the detection unit 21 based on the input information from the external source.

[0045] Note that although the alarm device 100 in FIG. 7 is shown with the sensor 2 including the control unit 28, the control unit 28 does not necessarily have to be included in the sensor 2. For example, a separate control unit 28 may be provided in the alarm device 100 to control the detection unit 21 of the sensor 2.

[0046] Next, the operation of the alarm device 100 will be described with reference to FIGS. 8, 11, and 12. FIG. 11 is a block diagram of the alarm device 100. FIG. 12 is an operation flowchart of the alarm device 100. Note that the arrows shown in FIG. 11 represent the directions in which signals are transmitted.

[0047] As shown in FIG. 12, in step S1, the control unit 28 outputs a detection unit operation signal to the detection unit 21 based on the detection unit control information stored in advance, and performs control to prompt the operation of the detection unit 21. The detection unit 21 operates according to the control command of the control unit 28, and detects objects such as passengers and carried items and the presence of the train.

[0048] In steps S2 and S3, the detection information receiving unit 22 receives the detection result from the detection unit 21, outputs the on-line information regarding the presence of the train from the received detection result to the on-line determination unit 23, and outputs the object information regarding the object to the position determination unit 25. The on-line determination unit 23 acquires the on-line information from the detection information receiving unit 22, and the position determination unit 25 acquires the object information from the detection information receiving unit 22. Note that steps S2 and S3 may be in any order.

[0049] In step S4, the on-line determination unit 23 determines the presence of the train including the position of the train from the on-line information acquired from the detection information receiving unit 22. The on-line determination unit 23 outputs the determination result of determining the presence of the train including the position of the train to the notification target area setting unit 24.

[0050] In step S5, the notification target area setting unit 24 sets the notification target area based on the determination result output from the on-line determination unit 23 and the initial area stored in advance, and outputs the notification target area information, which is information regarding the set notification target area, to the position determination unit 25. Note that the initial area stored in advance by the notification target area setting unit 24 is an area obtained by classifying the platform of the station according to the degree of danger. That is, the notification target area setting unit 24, from the determination result output from the on-line determination unit 23, for example, in a situation where there is a high possibility that an object on the platform comes into contact with the train, sets a notification target area in which the area of the area closest to the track in the initial area is widened. Here, a situation where there is a high possibility that an object on the platform comes into contact with the train includes, for example, a situation where the train is approaching the station, during preparation for stopping, during departure, and the like. In this way, by widely setting the area of the area closest to the track, more objects that may come into contact with the train can be detected, and a danger can be notified. In addition, it also leads to the object maintaining the distance from the track, reducing the possibility that an object on the platform comes into contact with the train.

[0051] In step S6, the position determination unit 25 uses the notification target area information output from the notification target area setting unit 24 and the object information output from the detection information receiving unit 22 to calculate in which area of the notification target area the object exists, and determines whether notification is necessary. Regarding the necessity of notification determined by the position determination unit 25, for example, when it is calculated that an object exists in an area closest to the track, such as the dangerous area shown in FIG. 8, the position determination unit 25 determines that notification by the notification unit 1 is necessary and outputs the position determination result to the output unit 26, and proceeds to step S7. On the other hand, for example, when it is calculated that an object exists in the safe area shown in FIG. 8, the position determination unit 25 determines that notification by the notification unit 1 is unnecessary and returns to step S1.

[0052] In step S7, the output unit 26 outputs the position determination result output from the position determination unit 25 to the notification unit 1, and the notification unit 1 operates based on the position determination result output from the output unit 26.

[0053] Here, using FIG. 8 , a specific example will be used to explain how the notification unit 1 operates based on the position determination result. First, if the position determination result determined by the position determination unit 25 indicates that an object is present in an area on the platform where notification is not required, such as the safe area shown in FIG. 8 , the notification unit 1 does not issue a warning to people on the platform, including at least the object. However, if such a warning notification is not issued, the display unit 12 may display advertisements or animations related to the train's status. Furthermore, the audio output unit 13 may output audio notifying the train's status, such as "A train is arriving" or "Please step back behind the white lines." Here, displaying animations related to the train's status refers to, for example, displaying an animation of a train entering the station when the train has arrived and is preparing to stop, displaying the next stop, destination, etc. when the train is stopped, or displaying an animation of a train departing when the train is departing. When a warning notification is required, the display unit 12 and the audio output unit 13 suspend their respective outputs, and prioritize outputting the warning notification. In this case, it is preferable that the sound indicating the warning is louder than the normal sound.

[0054] If the position determination result obtained by the position determination unit 25 indicates that an object is present in an area on the platform that requires notification, such as a danger area or warning area as shown in Fig. 8, the notification unit 1 issues a warning to people on the platform, etc., that includes at least the object. Here, the warning notification issued by the notification unit 1 refers to lighting or flashing light in the light-emitting unit 11, displaying a warning in the display unit 12, and outputting a sound related to the warning in the audio output unit 13. Note that the warning notification may be issued by at least one of the light-emitting unit 11, the display unit 12, and the audio output unit 13, or any combination thereof.

[0055] In the area on the platform, when an object (passenger) that requires a warning is detected, the type of warning can be changed depending on whether it is detected in the danger area or the warning area. At this time, it is preferable to issue a warning that not only alerts the detected object (passenger) but also requests assistance for the passengers around the detected object (passenger). For example, when it is detected that there is a passenger in the danger area or the warning area, it is preferable to irradiate light towards the safe area and issue a warning from the speaker at a volume that can also be heard in the safe area. In this way, it is also possible to make the area where the object (passenger) is detected different from the area where the warning is issued.

[0056] Since various warning sounds and announcements are flowing in the station premises, the warning issued from the voice output unit 13 is often difficult to be noticed. For this reason, as described above, it is preferable to make an announcement that is easy to notice, such as changing the volume of the voice, combining it with the light emission by the light emission unit 11, or playing a voice indicating a specific content different from the normal announcement, for example, "It is dangerous to walk at the edge of the platform".

[0057] Next, the communication of the data communication unit 5 with external devices, systems, etc. will be described. FIG. 13 is a diagram showing the communication between the data communication unit 5 of the warning device 100 and the management PC in the station master's office.

[0058] The data communication unit 5 communicates with devices, systems, etc. outside the warning device 100. For example, as shown in FIG. 13, the data communication unit 5 of the warning device 100 is connected to and communicates with the management PC provided in the station master's office via the network in the station premises.

[0059] First, the case where communication is performed from the data communication unit 5 of the warning device 100 to devices, systems, etc. outside the warning device 100 will be described.

[0060] The data communication unit 5 transmits the position determination result output from the output unit 26 of the sensor 2 to external devices, systems, etc. such as a management PC provided in the station office via the network within the station premises. That is, when the position determination result indicating that an object exists in the area on the platform that requires notification is output from the position determination unit 25 to the output unit 26, the output unit 26 outputs it to the notification unit 1 and the data communication unit 5 respectively. The data communication unit 5 transmits the position determination result output from the output unit 26 to the management PC provided in the station office via the network within the station premises. Although wireless communication is preferred, the communication method such as wired communication is not particularly limited. In this way, by transmitting the position determination result determined by the position determination unit 25 to the outside of the warning device 100 such as a management PC provided in the station office by the data communication unit 5, the situation can be notified to the station staff who manages the station. When a plurality of warning devices 100 are installed on the platform of the station, an identification number for identifying each warning device 100 is stored in a storage unit (not shown in the figure), etc., and the data communication unit 5 may transmit the position determination result determined by the position determination unit 25 to the outside of the warning device 100 in association with the identification number. Thereby, it is possible to quickly determine from which warning device 100 the position determination result is transmitted.

[0061] Also, the data communication unit 5 transmits the information indicating that maintenance is required, which is output from the maintenance function unit 3, to external devices, systems, etc. such as a management PC provided in the station office via the network within the station premises. Thereby, even at a position away from the platform where the warning device 100 is installed, information indicating that maintenance is required can be obtained, and maintenance inspections can be efficiently performed.

[0062] Next, the case of communicating from external devices, systems, etc. of the warning device 100 to the data communication unit 5 of the warning device 100 will be described.

[0063] For example, the management PC installed in the station office shown in Fig. 13 transmits climate information related to the climate to the data communication unit 5 of the warning device 100 via the network within the station premises. The data communication unit 5 outputs the received climate information to the sensor information setting unit 27. When the sensor information setting unit 27 anticipates bad weather based on the climate information obtained from the data communication unit 5, it reduces the sensitivity setting of the detection unit 21 and outputs a command to the detection unit 21. For example, when the sensor information setting unit 27 anticipates bad weather based on the climate information, it may reduce the sensitivity setting of sensor 2 so that objects less than 10 cm are not within the detection target, but this is not limited to this.

[0064] Also, when the sensor information setting unit 27 anticipates bad weather based on the climate information obtained from the data communication unit 5, it sets the detection range of the detection unit 21 to be smaller. Thereby, the risk of false detection due to the influence of bad weather can be reduced. Furthermore, when an on-delay value is set, the on-delay value is switched and set. Here, the on-delay value refers to the time required until detection and judgment. That is, when the detection unit 21 continuously detects an object for a time exceeding the on-delay value, it is determined that the object has been detected. When the sensor information setting unit 27 anticipates bad weather based on the climate information obtained from the data communication unit 5, it increases the on-delay value to avoid false detection.

[0065] The information transmitted to the data communication unit 5 from devices, systems, etc. outside the warning device 100 is not limited to meteorological information, and may be, for example, fire information, accident information, information related to the station vicinity, and information related to evacuation routes. That is, the data communication unit 5 receives information to be notified to passengers on the platform, etc. from devices, systems, etc. outside the warning device 100 and transmits it to the output unit 26. Note that the data communication unit 5 may directly transmit the information to be notified to passengers on the platform, etc. to the notification unit 1, and the notification unit 1 may notify passengers on the platform, etc. In that case, it does not matter particularly which of the light emitting unit 11, display unit 12, and voice output unit 13 of the notification unit 1 is used for notification, and it is advisable to make a selection according to the information to be notified.

[0066] When information indicating the occurrence of an abnormality such as a fire is transmitted from external devices, systems, etc. to the data communication unit 5, the voice emitted from the voice output unit 13 of the notification unit 1 is temporarily stopped. This prevents the interruption of important announcements other than the voice emitted from the voice output unit 13 of the alarm device 100. Note that such a masking function of the voice output unit 13 is enabled, for example, by transmitting a command from the data communication unit 5 to the voice output unit 13 of the notification unit 1. The method is not particularly limited as long as it can enable the masking function of the voice output unit 13.

[0067] As described above, the alarm device 100 according to the present embodiment includes a sensor 2 that detects passengers, objects such as carry-on items, and trains present on the platform of the station, and performs an in-line determination of the train and a position determination of the object based on the detected detection results, and a data communication unit 5 that communicates with external devices, systems, etc. In this way, the alarm device 100 itself has the function of being able to perform an in-line determination of the train and a position determination of the object, and also being able to communicate with external devices, systems, etc., enabling a flexible installation form without being affected by characteristics such as the shape of the station platform, and reducing the introduction cost and introduction load. In addition, since the alarm device 100 itself includes the data communication unit 5, only the alarm device 100 that needs to communicate with external devices, systems, etc. performs data communication, and the alarm device 100 that does not need to communicate only performs an in-line determination and a position determination. Thus, the necessity of data communication can be flexibly determined in consideration of the surrounding environment where the alarm device 100 is installed. Furthermore, the number of alarm devices 100 introduced on the platform of the station can also be flexibly changed according to the operation of the station. For example, it is also possible to introduce the alarm device 100 alone at first and gradually increase the number considering the characteristics of the station.

[0068] In addition, the control unit 28 of the warning device 100 according to the present embodiment has a masking function. Here, the masking function refers to a function such as reducing the detection sensitivity of the detection unit 21 of the sensor 2, stopping the operation of the detection unit 21 of the sensor 2, or stopping the output of the detection result even when an object is detected by the detection unit 21 of the sensor 2.

[0069] A specific example will be given to explain the masking function. When it is detected in the on-line determination unit 23 that the train is stopped at the station, the control unit 28 stops the operation of the detection unit 21 of the sensor 2 or controls to stop the output of the detection result even when an object is detected by the detection unit 21 of the sensor 2 so that the notification unit 1 does not notify the passengers getting on and off. Also, during rush hours, it is assumed that there are so many people on the platform that the warning device 100 does not function properly. In such a case, the control unit 28 stores in advance the time zones when rush hours are likely to occur, and during rush hours, stops the operation of the detection unit 21 of the sensor 2 or controls to stop the output of the detection result even when an object is detected by the detection unit 21 of the sensor 2. Also, during off-peak hours such as at night when cleaning or equipment maintenance is being carried out on the station platform, the control unit 28 stops the operation of the detection unit 21 of the sensor 2 or controls to stop the output of the detection result even when an object is detected by the detection unit 21 of the sensor 2. Thus, since the control unit 28 has the masking function, appropriate notification can be made without unnecessary notification.

[0070] Note that it is not necessary to provide the data communication unit 5 in all the warning devices 100 installed on the station platform. Also, even when all the warning devices 100 installed on the station platform are provided with the data communication unit 5, it is not always necessary for each warning device 100 to communicate with external devices, systems, etc. of the warning device 100 via the data communication unit 5. Specifically, for the warning device 100 planned to be installed at a position where it is difficult to notice the notification output from the warning device 100 due to the station structure or other reasons, it is advisable to provide the data communication unit 5 or connect the data communication unit 5 to the management PC.

[0071] Also, in this embodiment, as an example of a device or system external to the alarm device 100, the management PC in the station office was cited, and an example where the alarm device 100 and the management PC in the station office communicate with each other was described. However, the present invention is not limited to this. For example, communication may be performed with a terminal device held by a station staff member. As a result, a station staff member on the platform of the station can acquire information from the alarm device 100 or transmit information from the terminal device to the alarm device 100 by holding the terminal device.

[0072] Also, in a case where communication is performed from a device or system external to the alarm device 100 to the data communication unit 5 of the alarm device 100, and information indicating that notification by the notification unit 1 is required is output from a device or system external to the alarm device 100 to the data communication unit 5, the notification by the notification unit 1 may be different or the same for each alarm device 100. That is, for example, when two adjacent alarm devices 101 are installed on the platform, different or the same contents may be displayed on the display unit 12 of the alarm device 101.

[0073] Specifically, when adjacent alarm devices 100A and 100B are installed on the platform of the station, and information indicating that an object has been detected from the data communication unit 5 is output from the alarm device 100A to the management PC, the alarm device 100B may be notified by the display unit 12 or the voice output unit 13 of the notification unit 1. That is, an alarm device 100 different from the alarm device 100 for which information indicating that notification is required is output may perform the notification. In such a case, for example, the display unit 12 of the alarm device 100A may display "There is someone who needs help soon", and the display unit 12 of the alarm device 100B may display "There is someone who needs help in the station premises", etc., and the notification contents of each alarm device 100 can be made different.

[0074] Embodiment 2. In Embodiment 1, an alarm device 100 that communicates with a management PC installed in the station office of the data communication unit 5 was shown. In Embodiment 2, an alarm device 101 in which the data communication unit 5 also communicates with a monitoring system including a monitoring camera installed at the station is shown. Other configurations are the same as those in Embodiment 1, and the same configurations as those in Embodiment 1 are given the same numbers, and the description is omitted. As shown in FIG. 14, the alarm device 101 according to the present embodiment is connected via a station building network to a monitoring system including a monitoring camera installed at the station. When it is detected in the monitoring system that the station is congested and the management PC in the station office acquires the detection result in the monitoring system via the station building network and confirms the congestion of the station, congestion information, which is information notifying the alarm device 101 of the congestion of the station, is transmitted from the management PC in the station office. The data communication unit 5 of the alarm device 101 that has received the congestion information transmits the congestion information to the output unit 26, and the output unit 26 prompts the execution of the masking function of the control unit 28.

[0075] The management PC in the station office attempts to enhance the detection function of the detection unit 21 of the sensor 2 by using the information output from the data communication unit 5 of each alarm device 101 and the information acquired from the monitoring camera of the monitoring system. For example, by combining the learning function of image analysis of the monitoring camera and the signals of the alarm device 101, the detection of objects and trains can be performed in more detail. Note that the information acquired from the monitoring camera may be image data, and by collating the image data acquired by the monitoring camera and the detection results detected by the detection unit 21 of the alarm device 101, the accuracy of the detection results can be further improved. In addition, the information acquired by the monitoring camera can also be used to improve the detection accuracy of the detection unit 21 of the alarm device 101.

[0076] Further, by performing or managing the setting of the sensor information performed by the sensor information setting unit 27 in the management PC in the station office, the work of setting the sensor information to the new sensor 2 when the sensor 2 needs to be replaced can be efficiently performed.

[0077] By equipping the management PC in the station office with an analysis function, it is also possible to analyze the sensor log information collected by the sensor log collection unit 4. In addition, by analyzing and comparing the sensor log information of each of the alarm devices 101, it is possible to perform life prediction and the like.

[0078] As described above, the alarm device 101 according to the present embodiment includes a data communication unit 5, and the data communication unit 5 also communicates with a monitoring system including a monitoring camera. Thereby, the alarm device 101 can be appropriately operated based on the information detected by the monitoring system including the monitoring camera.

[0079] Hereinafter, various aspects of the present disclosure will be collectively described as appendices.

[0080] (Appendix 1) A detector that detects an object and a train, an on-line determination unit that determines the presence of the train based on on-line information, which is information regarding the presence of the train detected by the detector, object information that is information regarding the object detected by the detector, and an initial area that is an area obtained by classifying the station platform by risk level, a position determination unit that calculates in which of the classified areas the object exists in the initial area and determines whether notification is necessary, and a sensor having: A notification unit that notifies based on the position determination result output from the sensor; A data communication unit that communicates with external devices and systems; An alarm device for a station comprising: (Appendix 2) The alarm device for a station according to Appendix 1, further comprising a notification target area setting unit that sets a notification target area based on the initial area and the determination result output from the on-line determination unit. (Appendix 3) Comprising a control unit that controls the detector, The alarm device for a station according to Appendix 1, wherein the control unit performs control to prompt the operation of the detector based on detector control information, which is information regarding the control of the detector. (Appendix 4) The warning device for a station according to Appendix 3, wherein the control unit has a mask function which is a function related to the operation of the sensor. (Appendix 5) The warning device for a station according to any one of Appendix 2, wherein the notification target area setting unit sets the notification target area by changing the area occupied by each area in the initial area based on the initial area and the determination result. (Appendix 6) The warning device for a station according to Appendix 5, wherein the notification target area setting unit changes the area in the initial area according to the situation and position of the train in the determination result. (Appendix 7) The warning device for a station according to any one of Appendix 2 to 6, wherein the notification target area setting unit sets the notification target area excluding the area where the train sways on the platform of the station stored in advance. (Appendix 8) A step of the detection unit detecting an object and a train, A step of determining the presence of the train from the on-line information which is information regarding the presence of the train detected by the detection unit, A step of setting a notification target area from the initial area which is an area obtained by dividing the platform of the station into areas according to the degree of danger and the determination result output from the on-line determination unit, A step of calculating in which area among the areas obtained by dividing the initial area which is an area obtained by dividing the platform of the station into areas according to the degree of danger the object exists based on the object information which is information regarding the object detected by the detection unit, and determining whether notification is necessary, A step of notifying based on the position determination result determined by the position determination unit, A step of communicating with external devices and systems, A warning method for a station comprising the above.

Explanation of reference numerals

[0081] 1 Notification unit, 11 Light emitting unit, 12 Display unit, 13 Audio output unit, 2 Sensor, 21 Detection unit, 22 Detection information receiving unit, 23 Occupancy determination unit, 24 Notification target area setting unit, 25 Position determination unit, 26 Output unit, 27 Sensor information setting unit, 28 Control unit, 3 Maintenance function unit, 4 Sensor log collection unit, 5 Data communication unit, 100, 100A, 100B, 101 Alarm device, 110 Processor, 120 Memory, 130 Input interface, 140 Display

Claims

1. A sensor comprising: a detection unit that detects an object and a train; an on-line determination unit that determines the presence of the train based on on-line information which is information regarding the presence of the train detected by the detection unit; and a position determination unit that calculates in which of the areas obtained by dividing the platform of the station into areas according to risk levels based on object information which is information regarding the object detected by the detection unit and an initial area, the object exists in the initial area, and determines whether notification is necessary. A notification unit that performs notification based on the position determination result output from the sensor. A data communication unit that communicates with external devices and systems. An alarm device for a station comprising the above.

2. The alarm device for a station according to claim 1, further comprising a notification target area setting unit that sets a notification target area based on the initial area and the determination result output from the on-line determination unit.

3. Comprising a control unit that controls the detection unit, wherein the control unit performs control to prompt the operation of the detection unit based on detection unit control information which is information regarding the control of the detection unit. The alarm device for a station according to claim 1.

4. The alarm device for a station according to claim 3, wherein the control unit has a mask function which is a function regarding the operation of the detection unit.

5. The alarm device for a station according to claim 2, wherein the notification target area setting unit sets the notification target area by changing the area occupied by each area in the initial area based on the initial area and the determination result.

6. The alarm device for a station according to claim 5, wherein the notification target area setting unit changes the area in the initial area according to the situation and position of the train in the determination result.

7. The alarm device for a station according to claim 2, wherein the notification target area setting unit sets the notification target area excluding the area where the train sways on the platform of the station stored in advance.

8. A step of the detection unit detecting an object and a train; A step of determining the presence of the train based on on-line information which is information regarding the presence of the train detected by the detection unit; A step of calculating in which of the areas obtained by dividing the platform of the station into areas according to risk levels based on object information which is information regarding the object detected by the detection unit and an initial area, the object exists in the initial area, and determining whether notification is necessary; A step of performing notification based on the position determination result determined by the position determination unit. Steps of communicating with external devices and systems, A warning method for a station comprising the above.

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