Platform door control system

Abstract

To provide a platform door control system capable of securing evacuation routes for passengers of a train on a platform of a station in the case that an emergency occurs in the train.SOLUTION: A platform door control system 1 includes an on-vehicle device 30 mounted on a train 10 for wirelessly transmitting a platform door opening command when emergency processing is performed inside the train 10, and a platform door control device 70 installed on a platform 50 of a station to open a plurality of platform doors 51 installed on the platform 50 upon receiving the platform door opening command.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a platform door control system for controlling platform doors installed on the platform of a station (hereinafter simply referred to as "platform").

Background Art

[0002] In recent years, the installation of platform doors on station platforms has been progressing. Platform doors are usually opened in联动 with the opening of the vehicle doors of a train on the condition that the train has entered the platform and stopped at a fixed position (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Platform doors can have a great effect on ensuring the safety of railway users. However, for example, when an emergency occurs in the passenger compartment of a train and the train stops at a location other than the fixed position, the vehicle doors of the train can be opened by an operation inside the train, but the platform doors will not be opened. Therefore, the evacuation route of the passengers on the platform for the train is restricted, and there is a risk of hindering the evacuation of the passengers on the train.

[0005] Therefore, an object of the present invention is to provide a platform door control system that can secure an evacuation route for the passengers on the platform of a train when an emergency occurs inside the train.

Means for Solving the Problems

[0006] According to one aspect of the present invention, a platform door control system is provided. The provided platform door control system includes an onboard device mounted on a train that wirelessly transmits a platform door opening command when an emergency procedure is performed on the train, and a device installed on the station platform that receives the platform door opening command. After an alarm sounds to indicate that the door will be opened at an unusual time, The system includes a platform door control device that opens multiple platform doors installed on the platform. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a platform door control system that can secure evacuation routes for train passengers on the station platform in the event of an emergency on the train. [Brief explanation of the drawing]

[0008] [Figure 1] This is a plan view showing the schematic configuration of the platform door control system according to the embodiment. [Figure 2] This is a block diagram of a platform door control system according to an embodiment. [Figure 3] This flowchart shows an example of the normal operation of the platform door control system (on-board equipment and platform door control device) according to the embodiment. [Figure 4] This flowchart shows an example of how the onboard radio communication unit of the onboard equipment operates in the event of an emergency in the passenger compartment of a train. [Figure 5] This flowchart shows an example of the operation of the ground wireless communication unit of a platform door control device. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the attached drawings.

[0010] Figure 1 is a plan view showing a schematic configuration of a platform door control system according to one embodiment of the present invention, and Figure 2 is a block diagram of the platform door control system according to one embodiment of the present invention. The platform door control system 1 according to the embodiment is configured to open the train's vehicle doors and the platform doors installed on the platform in conjunction when a train enters the station platform and stops at a fixed position, and to close the train's vehicle doors and the platform doors installed on the platform in conjunction when the train departs from the station.

[0011] Referring to Figures 1 and 2, the platform door control system 1 according to this embodiment includes an on-board device 30 mounted on a train 10 and a platform door control device 70 installed on a station platform 50. The train 10 has multiple vehicle doors 11, and multiple platform doors 51 are installed on the platform 50. In Figure 1, the train 10 is composed of a single vehicle with two vehicle doors 11 on each side, and two platform doors 51 are installed on the platform 50. However, this is for the sake of explanation, and the train 10 may be composed of multiple vehicles, and each vehicle constituting the train 10 may have any number of vehicle doors 11 on either the left or right side, or on both sides. Also, it is sufficient that multiple platform doors 51 are installed on the platform 50, and the number of platform doors 51 is arbitrary.

[0012] In this embodiment, the onboard equipment 30 mounted on the train 10 includes an onboard radio 31, an onboard radio linkage unit 33, a vehicle door control unit 35, and a notification unit 37, while the platform door control device 70 installed on the platform 50 includes a ground radio 71, a ground radio linkage unit 73, a platform door control unit 75, and an alarm unit 77.

[0013] The onboard radio 31 of the onboard device 30 and the ground radio 71 of the platform door control device 70 can communicate wirelessly with each other when the train 10 is within a predetermined range from the station. In addition, the onboard radio linkage unit 33 of the onboard device 30 is connected to the onboard radio 31, and the ground radio linkage unit 73 of the platform door control device 70 is connected to the ground radio 71. Therefore, in this embodiment, wireless communication can be conducted between the onboard radio linkage unit 33 of the onboard device 30 and the ground radio linkage unit 73 of the platform door control device 70 via the onboard radio 31 and the ground radio 71 from the time the train 10 approaches the station and enters the predetermined range until the train 10 departs the station and leaves the predetermined range.

[0014] In the onboard device 30, the onboard radio communication unit 33 receives signals from the conductor's door switch 41. The conductor's door switch 41 is installed in the conductor's compartment or driver's compartment of the train 10. The conductor's door switch 41 is a switch operated by the crew or driver of the train 10 (hereinafter referred to as "crew, etc.") to open or close some or all of the multiple vehicle doors 11 of the train 10. The conductor's door switch 41 is configured to output signals to the onboard radio communication unit 33 in response to the operations of the crew, etc. Specifically, it outputs an open operation signal for opening the vehicle doors 11 or a close operation signal for closing the vehicle doors 11. In other words, the onboard radio communication unit 33 can receive open operation signals and close operation signals from the conductor's door switch 41.

[0015] Furthermore, the onboard radio communication unit 33 receives signals from the emergency communication device 43. The emergency communication device 43 is installed inside the passenger compartment of train 10. The emergency communication device 43 is a device that is mainly operated by passengers of train 10 in the event of an emergency in the passenger compartment of train 10. When operated by a passenger, the emergency communication device 43 is configured to output a signal (SOS signal) to the onboard radio communication unit 33 indicating that an emergency has occurred in the passenger compartment. In other words, the onboard radio communication unit 33 can receive an SOS signal from the emergency communication device 43.

[0016] Furthermore, a signal from the emergency door cock 45 is input to the on-vehicle wireless communication unit 33. The emergency door cock 45 is installed in the passenger compartment of the train 10. The emergency door cock 45 is a device mainly operated by the passengers of the train 10 to put the vehicle doors 11 of the train 10 in a state where they can be manually opened in case of an emergency in the passenger compartment of the train 10. When the emergency door cock 45 is operated by a passenger, it is configured to output a door cock operation signal to the on-vehicle wireless communication unit 33 and the vehicle door control unit 35. That is, a door cock operation signal can be input from the emergency door cock 45 to each of the on-vehicle wireless communication unit 33 and the vehicle door control unit 35.

[0017] As described above, the on-vehicle wireless communication unit 33 is capable of performing wireless communication with the ground wireless communication unit 73. Also, in the present embodiment, the on-vehicle wireless communication unit 33 is configured to be able to, for example, give a vehicle door opening / closing command to the vehicle door control unit 35 and give a notification command to the notification unit 37.

[0018] The vehicle door control unit 35 is configured to open and close the vehicle doors 11 of the train 10 based on the vehicle door opening / closing command from the on-vehicle wireless communication unit 33. Specifically, when a vehicle door opening command is given from the on-vehicle wireless communication unit 33, the vehicle door control unit 35 opens one or more of the plurality of vehicle doors 11 of the train 10 that are the target of the command. Also, when a vehicle door closing command is given from the on-vehicle wireless communication unit 33, the vehicle door control unit 35 closes one or more of the plurality of vehicle doors 11 of the train 10 that are the target of the command. Furthermore, when a door cock operation signal is input from the emergency door cock 45, the vehicle door control unit 35 is configured to put all the vehicle doors 11 of the train 10 in a state where they can be manually opened.

[0019] The notification unit 37 is configured to notify various information to the crew and the like based on the notification command from the on-vehicle wireless communication unit 33. For example, when an emergency notification command is given from the on-vehicle wireless communication unit 33, the notification unit 37 notifies the crew and the like that an emergency has occurred in the passenger compartment of the train 10.

[0020] Here, when the emergency reporting device 43 is operated by a passenger during the running of the train 10, the notification unit 37 notifies the crew and the like that an emergency has occurred in the passenger compartment of the train 10, and the train 10 is stopped by the crew and the like who have received the notification. Alternatively, when the emergency door cock 45 is operated by a passenger during the running of the train 10, the train 10 automatically stops. That is, when the emergency reporting device 43 and / or the emergency door cock 45 is operated, the train 10 will stop.

[0021] In the platform door control device 70, the detection result of the fixed-position stop detection unit 81 is input to the ground wireless communication unit 73. The fixed-position stop detection unit 81 includes, for example, a distance measurement sensor that measures the position of the front of the train 10, and is configured to be able to detect that the train 10 that has entered the platform 50 of the station has stopped at a fixed position. However, it is not limited to this. The fixed-position stop detection unit 81 only needs to be able to detect that the train 10 has stopped at a fixed position, and may be constituted by an on-vehicle element provided at the lower front part of the train 10 and a ground element installed at or near the fixed position.

[0022] As described above, the ground wireless communication unit 73 can perform wireless communication with the on-vehicle wireless communication unit 33. Also, in the present embodiment, the ground wireless communication unit 73 is configured to be able to give, for example, a platform door opening / closing command to the platform door control unit 75 and an alarm command to the alarm unit 77.

[0023] The platform door control unit 75 is configured to open and close multiple platform doors 51 installed on the station platform 50 based on platform door opening and closing commands from the ground wireless communication unit 73. Specifically, when the platform door control unit 75 receives a platform door opening command from the ground wireless communication unit 73, it opens the multiple platform doors 51 installed on the platform 50. Also, when the platform door control unit 75 receives a platform door closing command from the ground wireless communication unit 73, it closes the multiple platform doors 51 installed on the platform 50. Here, "opening (closing) multiple platform doors 51" includes opening (closing) all of the multiple platform doors 51 installed on the platform 50, and opening (closing) some of the multiple platform doors 51 installed on the platform 50.

[0024] The alarm unit 77 is configured to issue an alarm based on an alarm command from the ground radio communication unit 73. The purpose of this alarm is primarily to draw the attention of users on platform 50 and / or to prompt station staff at the station to take action to ensure the safety of users on platform 50.

[0025] Next, an example of the operation of the platform door control system 1 (on-board device 30 and platform door control device 70) according to the embodiment will be described with reference to Figures 3 to 5.

[0026] Figure 3 is a flowchart showing an example of the normal operation of the platform door control system 1 (on-board device 30 and platform door control device 70).

[0027] When train 10 approaches the station and enters the predetermined range, the platform door control system 1 establishes wireless communication between the onboard wireless communication unit 33 of the onboard device 30 and the ground wireless communication unit 73 of the platform door control device 70 (step S1).

[0028] While not particularly limited, for example, the ground wireless communication unit 73 of the platform door control device 70 constantly transmits a response request signal via the ground radio 71, and the onboard wireless communication unit 33 of the onboard equipment 30 of the train 10 approaching the station receives the response request signal via the onboard radio 31 and sends a response signal back to the ground wireless communication unit 73 of the platform door control device 70. This establishes wireless communication between the onboard wireless communication unit 33 of the onboard equipment 30 and the ground wireless communication unit 73 of the platform door control device 70, enabling wireless communication between the onboard equipment 30 and the platform door control device 70.

[0029] Next, the platform door control system 1 checks whether the train 10 has entered the station platform 50 and stopped at the designated position (step S2). This check is performed by the ground wireless communication unit 73 of the platform door control device 70 based on the detection result of the designated position stop detection unit 81.

[0030] Then, when the platform door control system 1 confirms that the train 10 has stopped at the designated position (step S2; YES), it synchronizes the train's doors 11 with the platform doors 51 installed on the platform 50 (step S3). The synchronized control between the train's doors 11 and the platform doors 51 installed on the platform 50 is performed, for example, as follows.

[0031] First, the ground radio communication unit 73 of the platform door control device 70, having confirmed that the train 10 has stopped in the designated position in step S2, wirelessly transmits a designated position stop confirmation signal to the on-board radio communication unit 33 of the on-board device 30. Upon receiving the designated position stop confirmation signal from the ground radio communication unit 73, the on-board radio communication unit 33 notifies the crew, etc., via the notification unit 37 that the train 10 has stopped in the designated position. The crew, etc., upon receiving the notification, operate the conductor's door switch 41 to open the vehicle doors 11 on the platform 50 side of the train 10, and the conductor's door switch 41 outputs an open operation signal to the on-board radio communication unit 33 in accordance with the operation of the crew, etc.

[0032] When the onboard wireless communication unit 33 receives an open door operation signal from the conductor's door switch 41, it provides the vehicle door control unit 35 with a vehicle door open command corresponding to the input open door operation signal, and also wirelessly transmits a platform door open command corresponding to the vehicle door open command to the ground wireless communication unit 73 of the platform door control device 70. The platform door open command transmitted wirelessly here, that is, the platform door open command transmitted wirelessly to the ground wireless communication unit 73 of the platform door control device 70 when the train 10 has stopped at its designated position, is the platform door open command under normal circumstances.

[0033] When the train door control unit 35 receives a train door open command, it opens each train door 11 on the platform 50 side of the train 10. The ground radio communication unit 73, which receives a platform door open command, provides the received platform door open command to the platform door control unit 75, and the platform door control unit 75, upon receiving the platform door open command, opens the multiple platform doors 51 installed on the platform 50 that correspond to each train door 11 to be opened. Providing the received platform door open command to the platform door control unit 75 includes converting the received platform door open command for use by the platform door control unit 75 and then providing it to the platform door control unit 75.

[0034] In other words, under normal circumstances, the onboard wireless communication unit 33, upon receiving the fixed-position stop confirmation signal from the ground wireless communication unit 73, issues a command to open the vehicle doors to the vehicle door control unit 35 and wirelessly transmits a (normal) platform door open command to the ground wireless communication unit 73. In other words, the vehicle doors 11 and platform doors 51 can be opened on the condition that the train 10 has stopped at its fixed position.

[0035] Furthermore, when the train 10 departs from the aforementioned station, if the crew or other personnel operate the conductor's door switch 41 to close the open doors 11 of each vehicle, the conductor's door switch 41 outputs a door closing operation signal corresponding to the crew's operation to the on-board radio communication unit 33. When the on-board radio communication unit 33 receives a door closing operation signal from the conductor's door switch 41, it provides a vehicle door closing command to the vehicle door control unit 35 and transmits a platform door closing command to the ground radio communication unit 73 of the platform door control device 70.

[0036] When the vehicle door closing command is received, the vehicle door control unit 35 closes the open vehicle doors 11 of the train 10 (each vehicle door 11 on the platform 50 side). The ground radio communication unit 73, which receives the platform door closing command, provides the received platform door closing command to the platform door control unit 75, and the platform door control unit 75, upon receiving the platform door closing command, closes the open platform doors 51. Providing the received platform door closing command to the platform door control unit 75 includes converting the received platform door closing command for use by the platform door control unit 75 and then providing it to the platform door control unit 75.

[0037] Subsequently, when the train 10 that has departed the station leaves the predetermined range, the platform door control system 1 terminates the radio communication between the onboard wireless communication unit 33 of the onboard device 30 and the ground wireless communication unit 73 of the platform door control device 70 (step S4).

[0038] Figures 4 and 5 show examples of the operation of the platform door control system 1 in the event of an emergency in the passenger compartment of train 10.

[0039] Figure 4 is a flowchart illustrating an example of the operation of the onboard radio communication unit 33 of the onboard equipment 30 in the event of an emergency in the passenger compartment of train 10. This flowchart is initiated when the emergency communication device 43 is operated by a passenger of train 10, in other words, when the onboard radio communication unit 33 receives an SOS signal from the emergency communication device 43.

[0040] In step S11, the onboard radio communication unit 33, which receives an SOS signal from the emergency communication device 43, issues an emergency notification command to the notification unit 37, thereby notifying the crew and others that an emergency has occurred in the passenger compartment of train 10 via the notification unit 37. Upon receiving this notification, the crew and others will be aware that an emergency has occurred in the passenger compartment of train 10 and will stop train 10 as appropriate. After stopping train 10, the crew and others may, if necessary, operate the conductor's door switch 41 to open some or all of the multiple car doors 11 of train 10.

[0041] In step S12, the onboard radio communication unit 33 checks whether a door cock operation signal has been input from the emergency door cock 45. If a door cock operation signal has been input from the emergency door cock 45, that is, if the emergency door cock 45 has been operated by a passenger of train 10 (step S12; YES), the onboard radio communication unit 33 proceeds to step S15. On the other hand, if no door cock operation signal has been input from the emergency door cock 45 (step S12; NO), that is, if the emergency door cock 45 has not been operated by a passenger, the onboard radio communication unit 33 proceeds to step S13. As described above, by operating the emergency door cock 45, passengers of train 10 can manually open the vehicle doors 11 of train 10.

[0042] In step S13, the onboard radio communication unit 33 checks whether an open door operation signal has been input from the conductor's door switch 41. If no open door operation signal has been input from the conductor's door switch 41 (step S13; NO), that is, if the crew or other personnel have not operated the conductor's door switch 41 to open the vehicle doors 11 of the train 10, the onboard radio communication unit 33 returns to the process in step S12. On the other hand, if an open door operation signal has been input from the conductor's door switch 41 (step S13; YES), that is, if the crew or other personnel have operated the conductor's door switch 41 to open the vehicle doors 11 of the train 10, the onboard radio communication unit 33 proceeds to the process in step S14.

[0043] In step S14, the onboard wireless communication unit 33 gives a vehicle door open command to the vehicle door control unit 35 in order to open some or all of the multiple vehicle doors 11 of the train 10.

[0044] In step S15, the on-board wireless communication unit 33 checks whether wireless communication has been established between itself (i.e., the on-board wireless communication unit 33) and the ground wireless communication unit 73 of the platform door control device 70. If wireless communication has been established between itself (the on-board wireless communication unit 33) and the ground wireless communication unit 73 of the platform door control device 70, that is, if wireless communication between the on-board device 30 and the platform door control device 70 is possible, the on-board wireless communication unit 33 proceeds to the process in step S16. On the other hand, if wireless communication has not been established between itself (the on-board wireless communication unit 33) and the ground wireless communication unit 73, that is, if wireless communication between the on-board device 30 and the platform door control device 70 is not possible, the on-board wireless communication unit 33 terminates this flow.

[0045] In step S16, the onboard radio communication unit 33 transmits an emergency platform door opening command to the ground radio communication unit 73 of the platform door control device 70. In other words, if an emergency procedure is performed inside the train 10, the onboard radio communication unit 33 transmits the platform door opening command to the ground radio communication unit 73 even if it has not received the fixed position stop confirmation signal from the ground radio communication unit 73 (even if the train 10 has not stopped at the fixed position). Here, the emergency procedure includes the operation of the emergency notification device 43, the operation of the emergency door cock 45, and / or the operation of the conductor's door switch 41 to open the vehicle doors 11.

[0046] In step S17, the on-board wireless communication unit 33 determines whether it has received an answer back from the ground wireless communication unit 73 of the platform door control device 70 for the emergency platform door opening command transmitted in step S16. If the answer back is received, the on-board wireless communication unit 33 terminates this flow. On the other hand, if the answer back is not received, the on-board wireless communication unit 33 proceeds to the processing in step S18. The answer back includes a platform door open signal indicating that multiple platform doors 51 installed on the platform 50 have been opened, as will be described later.

[0047] In step S18, the on-board wireless communication unit 33 determines whether a predetermined time has elapsed since transmitting the emergency platform door opening command to the ground wireless communication unit 73 of the platform door control device 70. If the predetermined time has not elapsed, the on-board wireless communication unit 33 returns to step S16 and wirelessly transmits the emergency platform door opening command to the ground wireless communication unit 73 again. If the predetermined time has elapsed, the on-board wireless communication unit 33 proceeds to the process in step S19.

[0048] In step S19, the onboard radio communication unit 33 sends a notification command to the notification unit 37, thereby notifying the crew, etc., via the notification unit 37 that it has not received an answer back for the emergency platform door opening command, i.e., that the answer back has not been received. This notification allows the crew, etc., to use the in-car announcement system 47, the in-car information display device 49, etc., to inform passengers evacuating from the passenger compartment of the train 10 to the platform 50 that the platform doors 51 may not be open, in order to alert them.

[0049] Figure 5 is a flowchart showing an example of the operation of the ground wireless communication unit 73 of the platform door control device 70. This flowchart is executed repeatedly, for example, at predetermined intervals.

[0050] In step S21, the ground wireless communication unit 73 determines whether or not it has received an emergency platform door opening command from the on-board wireless communication unit 33 of the on-board device 30. If it has received an emergency platform door opening command, the ground wireless communication unit 73 proceeds to step S22. If it has not received an emergency platform door opening command, the ground wireless communication unit 73 terminates this flow.

[0051] In step S22, the ground wireless communication unit 73 issues an alarm command to the alarm unit 77, thereby issuing an alarm via the alarm unit 77. This alarm primarily informs users on the platform 50 and station staff of the station that the platform doors 51 will be opened at an unusual time. This alarm draws the attention of users on the platform 50 and / or prompts station staff of the station to take action to ensure the safety of users on the platform 50.

[0052] In step S23, the ground radio communication unit 73 opens all of the platform doors 51 installed on the platform 50 by providing the platform door control unit 75 with the emergency platform door open command received in step S21. Providing the received emergency platform door close command to the platform door control unit 75 includes converting the received emergency platform door close command for use by the platform door control unit 75 and providing it to the platform door control unit 75.

[0053] In step S24, the ground radio communication unit 73 transmits a platform door open signal to the onboard radio communication unit 33 as an answer back to the emergency platform door open command received in step S21, indicating that multiple platform doors 51 installed on platform 50 have been opened.

[0054] As described above, the platform door control system 1 according to this embodiment includes an on-board device 30 mounted on a train 10 and a platform door control device 70 installed on a station platform. The on-board device 30 is configured to wirelessly transmit a platform door open command when an emergency is performed on the train 10, and the platform door control device 70 is configured to open a plurality of platform doors 51 installed on the platform 50 when it receives a platform door open command from the on-board device 30. Here, the emergency is performed by a passenger on the train 10 operating an emergency communication device 43 (operation of the emergency communication device 43), a passenger on the train 10 operating an emergency door cock 45 (operation of the emergency door cock 45), and a crew member operating a conductor's door switch 41 to open the train's doors 11 based on an SOS signal from the emergency communication device 43 (operation of opening the train's doors 11).

[0055] Specifically, in the platform door control system 1, the on-board device 30 (specifically the on-board wireless communication unit 33) receives an SOS signal from the emergency notification device 43, a door cock operation signal from the emergency door cock 45, or a door open operation signal from the conductor's door switch 41, and if wireless communication is established with the platform door control device 70 (specifically the ground wireless communication unit 73), it wirelessly transmits an emergency platform door open command to the platform door control device 70 (specifically the ground wireless communication unit 73), regardless of whether the train 10 is stopped at its designated position at the station (see Figure 4). Furthermore, when the platform door control device 70 receives the emergency platform door open command wirelessly transmitted from the on-board device 30, it opens all of the multiple platform doors 51 installed on the platform 50, regardless of whether the train 10 is stopped at its designated position at the station (see Figure 5).

[0056] In other words, in the platform door control system 1 according to this embodiment, even if an emergency occurs on the train 10 and the train 10 stops before its designated position, all of the multiple platform doors 51 installed on the platform 50 will be opened. Therefore, an evacuation route for passengers of the train 10 can be secured on the platform 50. Thus, according to the platform door control system 1 according to this embodiment, it is possible to prevent the platform doors 51 from obstructing the evacuation of passengers of the train 10 in the event of an emergency, that is, from hindering the evacuation of passengers of the train 10.

[0057] Furthermore, the platform door control device 70 (specifically its ground wireless communication unit 73) is configured to issue an alarm via the alarm unit 77 to users and station staff on the platform 50 when all of the platform doors 51 are opened based on an emergency platform door opening command from the on-board device 30 (specifically its on-board wireless communication unit 33). This allows for informing users and station staff on the platform 50 that the platform doors 51 will be opened at an unusual time, thereby prompting users on the platform 50 to pay attention and / or prompting station staff to take action to ensure the safety of users on the platform 50.

[0058] Furthermore, the platform door control device 70 (or its ground wireless communication unit 73) is configured to wirelessly transmit an answer back signal, including a platform door open signal, to the on-board device 30 (or its on-board wireless communication unit 33) when it has opened multiple platform doors 51 based on an emergency platform door open command from the on-board device 30 (or its on-board wireless communication unit 33). The on-board device 30 (or its on-board wireless communication unit 33) is configured to wirelessly transmit an emergency platform door open command again if it does not receive an answer back from the platform door control device 70 (or its ground wireless communication unit 73). This makes it possible to increase the certainty of opening the platform doors 51 in the event of an emergency, that is, the certainty of securing evacuation routes for passengers on train 10.

[0059] Furthermore, the onboard device 30 (specifically the onboard wireless communication unit 33) is configured to notify the crew, etc., via the notification unit 37, of the failure to receive an answer back from the platform door control device 70 (specifically the ground wireless communication unit 73) even after a predetermined time has elapsed since wirelessly transmitting an emergency platform door opening command. Therefore, the crew, etc., can use the in-car announcement device 47, the in-car information display device 49, etc., to inform the passengers of train 10 that there is a possibility that the platform doors 51 may not be open, in order to draw their attention.

[0060] In the above embodiment, the platform door control device 70 (or its ground wireless communication unit 73) that receives an emergency platform door opening command is configured to open all of the multiple platform doors 51 installed on the platform 50. However, it is not limited to this configuration. The platform door control device 70 (or its ground wireless communication unit 73) may also be configured to open only some of the multiple platform doors 51 installed on the platform 50.

[0061] Furthermore, the onboard device 30 (specifically the onboard wireless communication unit 33) receives signals from a door opening / closing sensor (not shown) that detects the opening and closing of the vehicle doors 11. The onboard device 30 (specifically the onboard wireless communication unit 33) receives an SOS signal from the emergency notification device 43, a door cock operation signal from the emergency door cock 45, a vehicle door opening detection signal from the door opening / closing sensor indicating that the vehicle doors 11 have been opened, and, if wireless communication is established with the platform door control device 70 (specifically the ground wireless communication unit 73), it may wirelessly transmit an emergency platform door opening command to the platform door control device 70 (specifically the ground wireless communication unit 73), regardless of whether the train 10 is stopped at its designated position at the station.

[0062] Although embodiments and variations thereof of the present invention have been described above, the present invention is not limited to the embodiments and variations described above, and further modifications and changes are possible based on the technical concept of the present invention. [Explanation of Symbols]

[0063] 1…Platform door control system, 10…Train, 11…Vehicle door, 30…Onboard equipment, 31…Onboard radio, 33…Onboard radio linkage unit, 35…Vehicle door control unit, 37…Notification unit, 41…Conductor's door switch, 43…Emergency notification device, 45…Emergency door cock, 47…In-car broadcasting system, 49…In-car information display device, 50…Platform (home), 51…Platform door, 70…Platform door control device, 71…Ground radio, 73…Ground radio linkage unit, 75…Platform door control unit, 77…Alarm unit

Claims

1. An onboard device installed on a train that wirelessly transmits a command to open the platform doors when an emergency procedure is performed on the train, A platform door control device installed on a station platform, which, upon receiving the platform door opening command, issues an alarm indicating that the doors will be opened at an unusual time, and then opens multiple platform doors installed on the platform. A platform door control system, including the platform door control system.

2. When the aforementioned train approaches the station and enters a predetermined range from the station, wireless communication is established between the onboard equipment and the platform door control device. The on-board device transmits the platform door opening command wirelessly when wireless communication has been established with the platform door opening command. The platform door control system according to claim 1.

3. The platform door control system according to claim 1, wherein the emergency procedure includes the operation of an emergency notification device.

4. The platform door control system according to claim 1, wherein the emergency procedure includes at least one of operating an emergency door cock and opening the doors of the train.

5. The platform door control system according to any one of claims 1 to 4, wherein the platform door control device opens all platform doors installed on the platform when it receives a platform door opening command.

6. The platform door control device is configured to wirelessly transmit an answer back signal, including a platform door open signal, to the on-board device when it opens the multiple platform doors based on the platform door open command. The on-board device is configured to re-transmit the platform door opening command wirelessly if it does not receive the answer back within a predetermined time after wirelessly transmitting the platform door opening command. A platform door control system according to any one of claims 1 to 4.

7. The platform door control system according to claim 6, wherein the onboard device is configured to notify the train crew and / or driver of the failure to receive the answer back if the answer back is not received after a predetermined time has elapsed.

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