Information collection system, information collection method, and program

Abstract

To provide an information gathering system and the like which properly gathers information when a transportation obstruction of a movable body happens.SOLUTION: An information gathering system 100 has a control unit 20 which causes display means to display an individual confirmation list in which confirmation items, a command staff should confirm if a transportation obstruction of a movable body happens, are listed correspondingly to the type of transportation obstruction. The control unit 20 recognizes by voice a telephone call content of the transportation obstruction between the command staff and another staff who had a telephone conversation with the command staff, and reflects the result of voice recognition on the individual confirmation list and displays the same.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an information collection system and the like.

Background Art

[0002] Regarding information collection in the event of a transportation failure caused by a train failure or the like, for example, the technology described in Patent Document 1 is known. That is, Patent Document 1 describes that "the display control unit outputs both the important information on the transmission side extracted by the important information extraction unit from the transmission information and the important information on the reception side extracted by the important information extraction unit from the playback information."

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the technology described in Patent Document 1, when a train driver and a dispatcher in a command room communicate by train radio, predetermined important information included in one of the speeches and important information included in the speech repeated by the other for confirmation are collated. That is, the technology described in Patent Document 1 is premised on the fact that repetition is performed between the driver and the dispatcher. Therefore, there is room for improvement in the case where repetition is not particularly performed in information collection regarding transportation failures of trains (moving bodies).

[0005] Therefore, an object of the present invention is to provide an information collection system and the like that appropriately collect information when a transportation failure of a moving body occurs.

Means for Solving the Problems

[0006] In order to solve the above-described problems, an information collection system according to the present invention includes a control unit that causes a display unit to display an individual confirmation list in which confirmation items to be confirmed by a commander when a transportation failure of a moving body occurs are listed corresponding to the type of the transportation failure, and the control unit reflects the result of voice recognition of the conversation content regarding the transportation failure between the commander and the other party with whom the commander has communicated on the individual confirmation list and displays it. If, during a call between the commander and the other party, a reference is made to a predetermined one of the confirmation items included in the individual confirmation list, add the content of the confirmation item to the individual confirmation list It was decided as follows. Incidentally, other aspects will be described in the embodiments

Effect of the Invention

[0007] According to the present invention, it is possible to provide an information collection system or the like that appropriately collects information when a transportation failure of a moving body occurs.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7A

Figure 7B

Figure 8A

Figure 8B

Figure 8C

Figure 9

Mode for Carrying Out the Invention

[0009] ≪Embodiment≫ FIG. 1 is an explanatory diagram including an information collection system 100 according to the embodiment. The information collection system 100 is a system used for information collection when a transportation failure of a train (mobile body) occurs, so that a commander can grasp the situation at the scene of the transportation failure and conduct train operation adjustment.

[0010] Note that "transportation failure" is a trouble that causes train (mobile body) suspension, delay, etc. Examples of such "transportation failures" include train failures, equipment failures, contact between a train and a person, entry of a person onto the track, failure of an operation management system (not shown), natural disasters, etc. Also, "operation adjustment" means changing the operation plan necessary for restoring the train operation schedule in order to reduce the impact on users when a delay or failure occurs in the operation of railways, etc. due to the occurrence of a transportation failure or the like.

[0011] As shown in FIG. 1, the driver or conductor at the scene of the transportation failure can communicate with a plurality of dispatchers in the dispatching room using train radio (radio transceiver). For example, when a predetermined transportation failure occurs during the running of the train, the driver contacts the dispatcher by train radio to inform them of the occurrence of the transportation failure. Based on the type of transportation failure, as well as the operation status, congestion status, weather, etc. of each train, the dispatcher issues a predetermined command for operation arrangement to normalize the train schedule.

[0012] In the example of FIG. 1, one terminal 40 (computer) is provided for each dispatcher. The terminal 40 includes a main body (not shown), a display 41, a keyboard 42, and a mouse (not shown). In addition, the dispatcher can communicate with the driver, etc. using a microphone 43. Each terminal 40 in the dispatching room is connected to each other via a communication line 51 and is also connected to an information collection system 100 via another communication line 52.

[0013] There are, for example, dozens to hundreds of dispatchers in the dispatching room, who manage the operation of each train. When a transportation failure occurs in a train, each of the multiple dispatchers conducts information collection in parallel. When collecting information, the dispatcher communicates with the driver or conductor at the scene, as well as with the on-site responsible person (responsible person for restoration work, etc.) or station staff. In addition, the dispatcher may also communicate with other dispatchers, as well as with emergency responders, firefighters, or police officers. Also, the dispatchers are divided into roles according to the response content, and typical ones include transportation commands, operation commands, etc. During a transportation failure, mainly the transportation command is centered on corresponding to information collection and consideration of operation arrangement, and the operation command examines the vehicle formation and crew assignment for implementing a new train schedule plan, which is the result of the consideration of operation arrangement. Therefore, there may be communication between the same commands or between different commands such as transportation commands and operation commands.

[0014] When the dispatcher talks to the driver, in order to prevent errors in information transmission, so-called railway terms are used or repetition is performed for confirmation. For example, after the dispatcher tells the driver, "This is a transportation instruction. For the driver in charge of Train 456, please respond if the sensitivity is good.", the driver then says to the dispatcher, "Transportation instruction, transportation instruction. This is the driver in charge of Train 456. The sensitivity is good. Please go ahead." Note that "good sensitivity" is a term used when confirming whether each other's voices can be clearly heard (conducting a call test).

[0015] If the content of such a call is analyzed by an existing speech recognition system, since railway terms and unique ways of speaking are used in the call, there is a high possibility of misrecognition. Also, generally, there are many ways of expressing things in speech, and there are various patterns such as homophones, so it is difficult to recognize speech without any errors at all. Therefore, in the railway business where the accuracy of information transmission is particularly emphasized, it is difficult to directly use an existing speech recognition system for collecting information related to transportation failures. On the other hand, the collection of information on transportation failures often requires urgency, and the information is also often complex.

[0016] Therefore, in this embodiment, the information collection system 100 performs speech recognition on the call between the dispatcher and the other party, and based on the situation (context), causes a predetermined individual confirmation list to be displayed on the dispatcher's display 41 (display means). Note that the individual confirmation list is a list that enumerates a plurality of confirmation items that the dispatcher should confirm. And when a predetermined confirmation item is mentioned in the call between the dispatcher and the other party, the information collection system 100 sequentially reflects the content of the confirmation item in the individual confirmation list.

[0017] Also, when the dispatcher talks to the other party, the way of speaking and the content of the dialogue often differ depending on the attributes of the other party (for example, driver, on-site supervisor, station staff, other dispatchers, emergency team members). For example, railway terms are used in the conversation between the dispatcher and the driver, but railway terms are rarely used in the conversation between the dispatcher and the emergency team members. Therefore, in this embodiment, the information collection system 100 selects the speech recognition model based on the attributes of the other party who talks to the dispatcher. As a result, the misrecognition when the information collection system 100 performs speech recognition can be significantly reduced.

[0018] As shown in FIG. 1, the information collection system 100 is connected to each terminal 40 via the communication line 52. When a call is made between the dispatcher and the other party, the voice data is output to the information collection system 100 via the communication line 52. The information collection system 100 performs speech recognition on the voice data of the call as specified, and displays a specified individual confirmation list reflecting the analysis result on the display 41 of the terminal 40.

[0019] FIG. 2 is an explanatory diagram showing the reflection of the call content in the individual confirmation list 13. Suppose that after a specified transportation failure occurs, the specified individual confirmation list 13 shown in FIG. 2 is displayed on the display 41 (see FIG. 1) of the dispatcher G2 or the like. In the example of FIG. 2, the items of the individual confirmation list 13 regarding the transportation failure include the occurrence date and time, occurrence location, route, cause, etc. The information collection system 100 (see FIG. 1) performs speech recognition on the conversation between the dispatcher G2 and the on-site driver, and the conversation between the other dispatchers G3 and G4, and reflects the analysis result on each item of the individual confirmation list 13. In the example of FIG. 2, since the occurrence date and time, occurrence location, route, cause, etc. have already been confirmed, the character "OK" is displayed in association with each item.

[0020] Although it is possible for commanders to communicate verbally, in this embodiment, they will communicate with each other using a telephone (not shown) such as a landline or a wireless phone. To apply voice recognition when communicating verbally, it is possible to handle the situation by having each commander individually wear a lapel microphone or the like (not shown). Also, in order for the commanders G1 to G4 shown in FIG. 2 to share information, a common individual confirmation list 13 may be displayed on the displays 41 (see FIG. 1) of the commanders G1 to G4. Further, when a plurality of commanders collect information in parallel, different types of individual confirmation lists 13 may be displayed on the displays 41 (see FIG. 1) of the respective commanders.

[0021] FIG. 3 is a functional block diagram of the information collection system 100. As shown in FIG. 3, the information collection system 100 includes a storage unit 10, a control unit 20, and a communication interface 30. The storage unit 10 includes, although not shown, a non-volatile memory such as a ROM (Read Only Memory) or an HDD (Hard Disk Drive), and a volatile memory such as a RAM (Random Access Memory) or a register. A predetermined program is stored in the storage unit 10 in advance, and data related to transportation failures is appropriately stored.

[0022] As shown in FIG. 3, the storage unit 10 stores a voice recognition model 11, voice data 12, an individual confirmation list 13, an information collection rule 14, a dialogue history 15, and sensor-camera data 16. The voice recognition model 11 is a predetermined program used for performing voice recognition using the voice data 12 of the call between the commander and the other party. As such a voice recognition model 11, for example, a plurality of types such as for calls between a commander and a driver, for calls between commanders, and for calls between a commander and a rescue team member are stored in advance. Also, the speech recognition model 11 may be configured by mechanisms generally used as speech recognition technologies such as an acoustic model, a language model, a pronunciation dictionary, etc. Here, these are collectively described as the speech recognition model 11, and the detailed description thereof is omitted.

[0023] The voice data 12 shown in FIG. 3 is voice data obtained from a call between the commander and the other party, and is also data to be subjected to speech recognition by the speech recognition model 11. The individual confirmation list 13 (see also FIG. 2) is a list in which a plurality of confirmation items to be confirmed by the commander to the other party in the call are listed. Note that a plurality of individual confirmation lists 13 are stored in advance in association with various situations (contexts) related to transportation obstacles.

[0024] The information collection rule 14 is a rule applied when the information collection system 100 collects information, and is stored in advance. Note that the details of the information rule will be described later. The dialogue history 15 is history data of a call (dialogue) between the commander and the other party. Such a dialogue history 15 is stored in the storage unit 10 in association with, for example, the date and time when the call was made, the identification information of the caller, and predetermined confirmation items of the individual confirmation list 13.

[0025] The sensor / camera data 16 is data indicating the detection result of the sensor 61 (see FIG. 2) and the imaging result of the camera 62 (see FIG. 2). Note that although not shown in the figure, measuring devices such as a rain gauge, an anemometer, a seismometer, and a GPS receiver are used as the sensor 61 (see FIG. 2). The imaging result of the camera 62 (see FIG. 2) is, for example, vehicle information such as an in-vehicle video obtained by a vehicle monitor camera and an in-vehicle congestion rate, and station information such as an in-station video obtained by a station building monitor camera and an in-station congestion rate. In addition, weather information such as AMeDAS (Regional Meteorological Observation System) and emergency earthquake warnings, as well as the pedestrian flow information of the station, may be included in the sensor / camera data 16.

[0026] The control unit 20 shown in FIG. 3 is, for example, a CPU (Central Processing Unit), and executes predetermined processing by reading a program stored in the non-volatile memory of the storage unit 10 and expanding it in the volatile memory. As a functional configuration in such processing, the control unit 20 includes a data acquisition unit 21, a failure type determination unit 22, a phase determination unit 23, a voice recognition unit 24, an interlocutor determination unit 25, and an information confirmation unit 26 shown in FIG. 3.

[0027] The data acquisition unit 21 acquires voice data of a call and the like via the communication interface 30. The failure type determination unit 22 determines the type (kind) of the transportation failure based on an alert or the like issued when a transportation failure of the train occurs. The phase determination unit 23 determines the current train operation arrangement phase (stage) when performing train operation arrangement after the occurrence of a transportation failure. A plurality of train operation arrangement phases are set in advance.

[0028] The voice recognition unit 24 recognizes the voice of the call based on the voice recognition model 11 stored in the storage unit 10. The interlocutor determination unit 25 determines the attributes of the caller (interlocutor) when a predetermined call (conversation) is being conducted.

[0029] The information confirmation unit 26 confirms whether there are any contradictions or the like in the content of the individual confirmation list 13 based on the information rules stored in the storage unit 10, and performs information arrangement and re-collection as necessary. The communication interface 30 performs input and output of information between the terminal 40 of the commander (see FIG. 1) and the control unit 20. Also, the voice data of the call between the commander and the other party is input to the control unit 20 via the communication interface 30.

[0030] FIG. 4 is a flowchart of the processing executed by the control unit of the information collection system (also refer to FIG. 3 as appropriate). It is assumed that a predetermined transportation failure occurs in the train at the time of "START" in FIG. 4, and a call is started between the commander and the other party (for example, a driver, a station staff, another commander, a rescue team member). In step S101, the control unit 20 determines the type (category) of the transportation failure by the failure type determination unit 22. For example, when a transportation failure of a train occurs, a predetermined alert corresponding to the type of this transportation failure is issued from a railway system (not shown), and this alert is transmitted to each terminal 40 (see FIG. 1) in the command room. Based on this alert, the control unit 20 determines the type of the transportation failure of the train. As described above, examples of the type of transportation failure include train failures, equipment failures, contact between a train and a person, entry of a person onto the track, failure of the operation management system, natural disasters, and the like. Note that the flowchart in FIG. 4 may detect a transportation failure based on the judgment of the dispatcher or this alert and start (''START'' in FIG. 4).

[0031] Also, as the process of step S101, the control unit 20 may analyze the conversation content between the dispatcher and the driver, etc., and determine the type of the transportation failure based on the analysis result. In addition, for example, the dispatcher may input data indicating the type of the transportation failure to the terminal 40 (see FIG. 1).

[0032] Next, in step S102, the control unit 20 determines the train operation adjustment phase by the phase determination unit 23. As described above, the operation adjustment phase indicates the stage of operation adjustment and is preset. For example, a predetermined three-stage operation adjustment phase may be provided. The operation adjustment phase 1 is, for example, the stage from when a transportation failure occurs until partial operation (operation of the train in a part of the section) starts. When a transportation failure of the train occurs, the control unit 20 first sets the operation adjustment stage as the operation adjustment phase 1.

[0033] Note that when the conversation content between the train driver, etc. and the dispatcher includes keywords such as ''train suppression'' or ''delay of the preceding train'', the control unit 20 may set the current operation adjustment stage as the operation adjustment phase 1. Here, ''train suppression'' means to suspend the operation of the train and stop the train regardless of the operation schedule. Also, ''delay of the preceding train'' means to postpone the departure time of the preceding train.

[0034] Figure 5 is an explanatory diagram showing an overview of the response to transportation failures. In the example of Figure 5, a predetermined alert indicating that a vehicle failure has occurred at Station A is transmitted from the railway facilities to the command center at 8:10. Thereafter, predetermined reports, instructions, and communications are made between the driver and the dispatcher (transportation command), and predetermined questions are made from the operation command to the vehicle base. For example, at 8:20, the dispatcher (transportation command) communicates to the driver that the train detention arrangements have been completed. Therefore, from 8:10 when the vehicle failure occurred to 8:20 when the detention arrangements were completed, Operation Arrangement Phase 1 is set as the stage of operation arrangement.

[0035] Operation Arrangement Phase 2 is, for example, the stage from when partial operation starts until full operation resumes. The control unit 20 sets the current stage of operation arrangement as Operation Arrangement Phase 2 when keywords such as "change of turnaround station", "operation suspension", and "platform change" are included in the conversation content between the train driver, etc. and the dispatcher.

[0036] Operation Arrangement Phase 3 is, for example, the stage from when full operation resumes until returning to the normal operation schedule. The control unit 20 sets the current stage of operation arrangement as Operation Arrangement Phase 3 when keywords such as "change of turnaround station" and "operation suspension" are included in the conversation content between the train driver, etc. and the dispatcher, and furthermore, if they are for the purpose of restoring the operation schedule to normal. In addition, for example, the dispatcher may be made to input data indicating the operation arrangement phase into the terminal 40. Also, in addition, for example, if the previous phase is completed, it may be set as Operation Arrangement Phase 2 or 3. Also, situations such as "start of partial operation suspension" and "resumption of full operation" may be grasped in cooperation with an external system such as an operation management system (not shown).

[0037] Next, in step S103 of FIG. 4, the control unit 20 selects a countermeasure policy. Note that a predetermined countermeasure policy is set in advance in association with the type of transportation failure and the operation adjustment phase. Here, the selection of the countermeasure policy means that when collecting information regarding the train transportation failure, the control unit 20 selects an individual confirmation list to be presented to each dispatcher.

[0038] FIG. 6 is an explanatory diagram showing the relationship among the type of transportation failure, the operation adjustment phase, and the individual confirmation list. As shown in FIG. 6, hierarchical structure data regarding the type of transportation failure, the operation adjustment phase, and the individual confirmation list are stored in advance. In the example of FIG. 6, the types of transportation failure include vehicle failure, facility failure, natural disaster, etc. As the operation adjustment stages in the case of vehicle failure, operation adjustment phase 1, operation adjustment phase 2, and operation adjustment phase 3 are associated. Further, a plurality of individual confirmation lists A, B, ···, X are associated with operation adjustment phase 1. Note that different types of a plurality of individual confirmation lists are also associated with the other operation adjustment phases 2 and 3, respectively.

[0039] For example, when a vehicle failure occurs in a train and the operation adjustment stage is operation adjustment phase 1, the control unit 20 causes a predetermined individual confirmation list A to be displayed on the terminal 40 (see FIG. 1) of a predetermined dispatcher, and causes another individual confirmation list B to be displayed on the terminal 40 (see FIG. 1) of another dispatcher. That is, individual confirmation lists A, B, ···, X with different contents are individually displayed on the terminals 40 of a plurality of dispatchers. The process of specifying these individual confirmation lists A, B, ···, X is the selection of the countermeasure policy in step S103 of FIG. 4. In short, the control unit 20 selects a plurality of individual confirmation lists A, B, ···, X corresponding to the type of transportation failure (for example, vehicle failure) and the operation adjustment phase (for example, operation adjustment phase 1) as the countermeasure policy for the transportation failure. Note that which terminal 40 (see FIG. 1) each of the plurality of individual confirmation lists A, B, ···, X is to be displayed on is set in advance. Specifically, the terminal 40 (see FIG. 1) to be used by each dispatcher for transportation commands, operation commands, etc. in the command room may be set in advance.

[0040] In step S104 of FIG. 4, the control unit 20 issues a notice for prompting each commander to collect information. That is, the control unit 20 causes a predetermined individual confirmation list corresponding to the type of transportation failure (S101) and the operation arrangement phase (S102) to be displayed on the terminal 40 of the commander (see FIG. 1), and notifies the commander that information collection should be performed for each item of the individual confirmation list.

[0041] In step S105, the control unit 20 performs an information collection process. Details of the information collection process will be described later. In step S106, the control unit 20 determines, by the information confirmation unit 26, whether there are any contradictions in the results of the information collection. For example, when the detection result of the sensor 61 (see FIG. 2) or the imaging result of the camera 62 (see FIG. 2) does not match the result of the information collection process (S105), the control unit 20 determines that there is a contradiction in the result of the information collection process.

[0042] In step S106, if there is a contradiction in the result of the information collection process (S106: Yes), the process of the control unit 20 proceeds to step S107. In step S107, the control unit 20 takes corresponding actions based on a predetermined rule. That is, the control unit 20 performs processing according to the mode of the contradiction based on a predetermined information collection rule 14 (see FIG. 3). For example, when the detection result of the sensor 61 (see FIG. 2) or the imaging result of the camera 62 (see FIG. 2) does not match the content transmitted from the driver, the control unit 20 gives priority to the detection result of the sensor 61 or the imaging result of the camera 62 based on the information collection rule 14. Note that there are various cases for the processing in steps S106 and S107, and the details will be described later.

[0043] Next, in step S108, the control unit 20 determines whether there is a request for additional information collection. For example, the control unit 20 determines whether there is a request for additional information collection from a predetermined external system (not shown) or the commander. Note that the request for additional information collection from the commander may be input via the keyboard 42 (see FIG. 1), or the control unit 20 may perform voice recognition on the speech of the commander. If there is a request for additional information collection in step S108 (S108: Yes), the process of the control unit 20 proceeds to step S109. Also, in step S105, for example, if there is insufficient information in the result of the information collection process due to a call being disconnected or the like, a request for additional information collection is also made (S108: Yes), and the process of the control unit 20 proceeds to step S109.

[0044] In step S109, the control unit 20 updates the individual confirmation list. That is, the control unit 20 updates the individual confirmation list by adding a predetermined item to the individual confirmation list based on the request for additional information collection (S108). In this way, when there is a request to add a new confirmation item from the commander or an external system (not shown) for a predetermined individual confirmation list, the control unit 20 causes the individual confirmation list with the new confirmation item added according to the addition request to be displayed on the display 41 (display means: see FIG. 1).

[0045] The above-mentioned external system (not shown) is, for example, a system that analyzes the result of the information collection process by the control unit 20 and is connected to the information collection system 100 (see FIG. 1) via a communication line (not shown). As such an external system, for example, AI (Artificial Intelligence) may be used.

[0046] After performing the process of step S109, the process of the control unit 20 returns to step S104. That is, the control unit 20 causes the individual confirmation list with the new confirmation item added to be displayed on the terminal 40 of the commander and issues a notification prompting information collection again (S104).

[0047] Also, in step S108, if there is no request for additional information collection (S108: No), the process of the control unit 20 proceeds to step S110. In step S110, the control unit 20 outputs the result of the information collection. For example, the control unit 20 causes data in which a plurality of individual confirmation lists are reflected as prescribed to be displayed on the terminal 40 of each commander. Thereby, each commander can quickly and accurately grasp the result of the information collection regarding the transport failure of the train. Additionally, for example, the control unit 20 may output the result of the information collection process as a data file and transfer it to an external system (not shown) via the communication line 52 (see FIG. 1). Further, the control unit 20 may output, as the result of the information collection process, the content as shown in FIG. 5 as an outline to the display 41 or the like (see FIG. 1).

[0048] In step S111, the control unit 20 determines whether the train operation arrangement has been completed. That is, the control unit 20 determines whether the train has returned to the normal operation schedule. Alternatively, the commander may determine the completion of the operation arrangement and input it using the keyboard 42 or the like (see FIG. 1). In step S111, if the train operation arrangement has not been completed yet (S111: No), the process of the control unit 20 returns to step S101. On the other hand, in step S111, if the train operation arrangement has been completed (S111), the control unit 20 ends the series of processes shown in FIG. 4 (END).

[0049] FIGS. 7A and 7B are flowcharts relating to the information collection process in step S105 of FIG. 4 (also refer to FIG. 3 as appropriate). Note that individual confirmation lists with different contents are each displayed on the terminal 40 of each commander, and it is assumed that the information collection process proceeds in parallel using each individual confirmation list. In step S1051, the control unit 20 determines the attribute of the interlocutor by the interlocutor determination unit 25. For example, the control unit 20 identifies the attribute (such as the driver or the dispatcher) of the interlocutor (the caller and the receiver) in the call based on the wireless ID or the phone number of the train wireless. In addition, for example, for voice data of self - identification such as "This is the driver in charge of Train 456" or "This is the transportation instruction", the control unit 20 may perform voice recognition to identify the attribute of the interlocutor.

[0050] In step S1052, the control unit 20 selects an individual confirmation list. That is, the control unit 20 selects the individual confirmation list to be displayed on the dispatcher's terminal 40 based on contexts such as the type of transportation failure (S101 in FIG. 4), the operation arrangement phase (S102 in FIG. 4), and the attribute of the interlocutor (S1051). From another perspective, the control unit 20 selects, among the individual confirmation lists A, B, ···, X (see FIG. 6) in the corresponding policy selected in step S103 of FIG. 4, the one corresponding to the attribute of the interlocutor.

[0051] In step S1053, the control unit 20 selects a voice recognition model. As described above, a plurality of voice recognition models are stored in advance in the storage unit 10 (see FIG. 3) in association with the attributes of the interlocutors. Between the dispatcher and the driver, in addition to the repetition for confirmation, stereotypical information transmission using railway terms is often carried out. By the control unit 20 selecting a predetermined voice recognition model corresponding to such repetition and stereotypical information transmission, the accuracy of voice recognition can be improved.

[0052] Also, for example, in the call between the person in charge of the transportation failure site (the person in charge of restoration work, etc.), the police, the fire department, the emergency team, and the dispatcher, railway terms are not particularly used, and normal conversations are mostly carried out. Therefore, another voice recognition model for performing voice recognition of such normal conversations is prepared. Then, the control unit 20 uses, among the plurality of voice recognition models, the one corresponding to the attribute of the person on the other side of the call with the dispatcher to perform voice recognition of the call content. In step S1054, the control unit 20 causes the individual confirmation list to be displayed on the terminal 40 of the dispatcher.

[0053] FIG. 8A is an example of the screen display of the individual confirmation list 13A. In the example of FIG. 8A, in a predetermined individual confirmation list 13A, confirmation items such as "the cause of congestion at Station B", "the degree of congestion on the platform of Station B", and "confirmation of stopping at Station B" are listed. After the dispatcher confirms with the station staff at Station B whether the voice of the call can be clearly heard, the dispatcher confirms with the station staff about each confirmation item.

[0054] In step S1055 of FIG. 7A, the control unit 20 performs voice recognition by the voice recognition unit 24. That is, the control unit 20 extracts a predetermined keyword from the call between the dispatcher and the other party using the predetermined voice recognition model selected in step S1053. Specifically, a predetermined keyword is set in advance so that data regarding the time and location of the occurrence of the transportation failure, as well as the mode and cause of the transportation failure, can be extracted.

[0055] In step S1056, the control unit 20 identifies the type of dialogue by the voice recognition unit 24. Examples of such types of dialogue include questions, instructions, and reports. For example, when a call comes in from the site of a transportation failure to the dispatcher, reports from the driver, etc. are often made. Also, when the dispatcher calls the site, questions from the dispatcher are often made. In step S1055, the control unit 20 narrows down the type of dialogue based on, for example, whether the calling side is the site of the transportation failure or the dispatcher.

[0056] In step S1057, the control unit 20 specifies the confirmation items by the voice recognition unit 24. That is, the control unit 20 performs voice recognition on the conversation between the commander and the other party, and performs matching with a predetermined keyword corresponding to the confirmation item in the individual confirmation list (S1052). For example, when one of the confirmation items in the individual confirmation list includes the "cause" of the transportation failure, and when the "cause" of the transportation failure is mentioned in the conversation, the control unit 20 specifies the confirmation item of the "cause" of the transportation failure.

[0057] FIG. 8B is an example of a screen display showing a state in which a predetermined confirmation item included in the individual confirmation list 13A is specified. In the example of FIG. 8B, the predetermined individual confirmation list 13A includes a confirmation item of "the cause of the congestion at Station B". In addition, the commander asks the station staff at Station B, "What is the cause of the congestion at Station B?" Based on the keyword "cause" included in the commander's question, the control unit 20 specifies the confirmation item of "the cause of the congestion at Station B". In the example of FIG. 8B, the time when this confirmation item was mentioned is displayed in the column ( "time") immediately to the right of the confirmation item of "the cause of the congestion at Station B".

[0058] In step S1058 of FIG. 7A, the control unit 20 performs voice recognition on the response content of the responder by the voice recognition unit 24. Next, in step S1059, the control unit 20 extracts and registers information related to a predetermined confirmation item by the voice recognition unit 24, and displays it on the display 41 (see FIG. 1) of the commander (display control process).

[0059] FIG. 8C is an example of a screen display showing a state in which the answer regarding the confirmation item of the individual confirmation list 13A is displayed as text data. In the example of FIG. 8C, in response to the dispatcher, the station staff at Station B has replied, "This is because the up-train in Section C has stopped." The control unit 20 performs voice recognition as prescribed, converts the reply content from the station staff into text data, associates it with the confirmation item "Cause of congestion at Station B", and displays it in the reply column. That is, when a prescribed confirmation item included in the individual confirmation list 13A is mentioned during the conversation between the dispatcher and the other party, the control unit 20 adds the content of this confirmation item to the individual confirmation list 13A. In this way, since the information (reply) obtained during the conversation is sequentially reflected in the individual confirmation list 13A, it becomes easier for the dispatcher to grasp the conversation content in real time. Also, the dispatcher can proceed with information collection while grasping which of the multiple confirmation items have already been confirmed with the other party and which have not yet been confirmed.

[0060] In addition, if the content displayed in the reply column of the individual confirmation list is different from the actual conversation content, the dispatcher may be able to correct the content of the reply column by operating the keyboard 42 (see FIG. 1) or the like. That is, the content of the confirmation item displayed on the display 41 (display means: see FIG. 1) may be made changeable by operating the keyboard 42 or a touch panel (not shown). This allows the dispatcher to correct the error based on their judgment even if an error occurs in voice recognition.

[0061] Returning again to FIG. 7A, the description will continue. In step S1060, the control unit 20 determines whether information collection has been completed. For example, if there are confirmation items included in the individual confirmation list selected in step S1052 that the dispatcher has not been able to confirm with the other party, the control unit 20 determines that information collection has not yet been completed (S1060: No) and proceeds to the process of step S1061. In step S1061, the control unit 20 performs a screen display that prompts the collection of deficiency information. For example, among the plurality of confirmation items included in the individual confirmation list, the control unit 20 may perform color coding and display them in a predetermined manner so that those that have not yet been confirmed are prominent. Also, the control unit 20 may display a predetermined message that prompts the collection of deficiency information. After performing the process of step S1061, the process of the control unit 20 returns to step S1055 (voice recognition).

[0062] Also, in step S1060, if the information collection is completed (S1060: Yes), the process of the control unit 20 proceeds to the process of step S1062 in FIG. 7B. In step S1062, the control unit 20 displays a completion screen for information collection. For example, the control unit 20 displays a predetermined message indicating that the information collection is completed.

[0063] Next, in step S1063, the control unit 20 registers it in the dialogue history 15 (see FIG. 3). That is, the control unit 20 records the conversation content between the dispatcher and the other party, and associates it with the plurality of confirmation items included in the individual confirmation list, and stores it in the storage unit 10 (see FIG. 3) as the dialogue history 15 (see FIG. 3). In the example of FIG. 8C, the control unit 20 associates the voice data of the answer "because the up train in section C is stopped" with the confirmation item "the cause of the congestion at Station B" and stores it in the storage unit 10 (see FIG. 3) as the dialogue history 15 (see FIG. 3). Also, when storing it in the storage unit 10 (see FIG. 3) as the dialogue history 15 (see FIG. 3) in association with the target confirmation item, the surrounding voice data may also be included in order to make the context easier to understand.

[0064] Also, the control unit 20 may display a predetermined playback button 131A on the individual confirmation list 13A. This playback button 131A is a button that is operated when the dispatcher rechecks the conversation content with the station staff at Station B. In railway operations, since the accuracy of information transmission is particularly important, the data obtained by recording the actual conversation of the dispatcher is associated with a predetermined confirmation item and left as the dialogue history 15 (see FIG. 3).

[0065] In this way, the control unit 20 causes a predetermined playback button 131A to be displayed in association with the confirmation item. When the playback button 131A is selected, the recorded call content of the confirmation item is played back as audio. As a result, the commander can reconfirm the content of the predetermined confirmation item and the audio of the actual call content. Also, when the commander reconfirms the past call content, since the commander only needs to search for a predetermined confirmation item in the individual confirmation list, the reconfirmation can be performed in a short time.

[0066] Next, the processing after the information collection process (S105 in FIG. 4) will be described in detail. As described above, when there is a contradiction in the result of information collection (S106 in FIG. 4: Yes), the control unit 20 takes corresponding measures based on a predetermined rule (S107). For example, for a predetermined confirmation item, the commander may obtain answers with different contents from a plurality of counterparts. In such a case, as the corresponding measure (S107) based on a predetermined rule, the control unit 20 performs re-collection of information. For example, for a confirmation item with a contradiction, the control unit 20 may add a new confirmation item such that the evidence (basis) can be obtained. In this way, when the contents of the answers obtained by the commander from a plurality of counterparts for a predetermined confirmation item included in the individual confirmation list are different, the control unit 20 performs re-collection of the data related to this confirmation item. As a result, more accurate information can be obtained through the re-collection of data.

[0067] Also, for example, regarding a predetermined confirmation item, there may be cases where multiple different responses are obtained from the other party in the commander's call at multiple timings. For example, in a call between the commander and the station staff, assume that after receiving a response at 9:00 that station B is congested, another response at 9:15 indicates that station B is not particularly congested. In such a case, as a response based on a predetermined rule (S107), the control unit 20 adopts the most recently obtained response (the newest response). This is because the most recently obtained response is more likely to accurately reflect the current situation regarding transportation obstacles. Thus, when there are mixed responses with different contents obtained by the commander from the other party at multiple timings for a predetermined confirmation item, the control unit 20 gives priority to the newest response. That is, the control unit 20 reflects the newest response in the individual confirmation list in association with the predetermined confirmation item. This can suppress the complication of information regarding transportation obstacles.

[0068] Also, for example, regarding a predetermined inspection item, the information obtained in a call between the commander and the other party may differ from the sensor - camera data 16 (see FIG. 3). As described above, the sensor - camera data 16 is information including the detection results of sensors 61 (see FIG. 2) such as rain gauges, anemometers, seismographs, GPS receivers, and the imaging results of cameras 62 (see FIG. 2) such as vehicle monitoring cameras and in - station monitoring cameras. A specific example of this case will be described with reference to FIG. 9.

[0069] FIG. 9 is an example of a screen display showing a state where multiple different results are obtained for a predetermined confirmation item in the individual confirmation list 13B. In the individual confirmation list 13B shown in FIG. 9, regarding the confirmation item of "congestion level on Platform 1 of Station B", the station staff at Station B has provided a response of "no noticeable congestion on the platform". However, as a result of image analysis of the imaging data of the camera 62 (see FIG. 2) installed on Platform 1 of Station B, it shows "congestion". That is, there is a contradiction between the response from the station staff and the imaging result of the camera 62. In such a case, based on a predetermined rule, the control unit 20 gives priority to the imaging result of the camera 62 as the corresponding measure (S107). This is because when a person visually judges the congestion level, individual differences are likely to occur in the conclusion, while such a situation is less likely to occur in image analysis.

[0070] In this way, when the content of a predetermined confirmation item included in the individual confirmation list conflicts with the imaging result of the camera 62 (see FIG. 2) that images the interior of the train (moving body) or the camera 62 (see FIG. 2) provided at the station (the parking place of the moving body), the control unit 20 gives priority to the imaging result of the camera 62. That is, the control unit 20 reflects the imaging result of the camera 62 in the individual confirmation list in association with the predetermined confirmation item. Also, depending on the situation, instead of directly using the result of the image analysis, the dispatcher may directly check the video data to determine the final congestion level. Further, when the content of the predetermined confirmation item included in the individual confirmation list conflicts with the detection result of the sensor 61 (see FIG. 2) that detects a predetermined state quantity related to the operation of the train (moving body), the control unit 20 gives priority to the detection result of the sensor 61. That is, the control unit 20 reflects the detection result of the sensor 61 in the individual confirmation list in association with the predetermined confirmation item. This can suppress the complication of information regarding transportation obstacles.

[0071] According to this embodiment, the control unit 20 extracts and organizes the necessary information from the conversation content between the dispatcher and the other party, and sequentially reflects the result in the individual confirmation list. Therefore, the dispatcher can proceed with train operation arrangement while grasping the content that has not yet been confirmed in addition to the content already confirmed with the other party. Therefore, information collection can be appropriately performed when a train transportation obstacle occurs, contributing to social welfare.

[0072] Also, according to the present embodiment, based on the context such as the type of transportation failure, the driving arrangement phase, and the attributes of the other party in the call, the control unit 20 selects an individual confirmation list (S1053 in FIG. 7A). As a result, an individual confirmation list including a plurality of confirmation items can be appropriately presented to each commander (the commander who collects information).

[0073] Also, according to the present embodiment, based on the attributes of the other party in the call of the commander, etc., the control unit 20 selects a voice recognition model (S1053 in FIG. 7A). As a result, the control unit 20 can appropriately perform voice recognition corresponding to the form and terms of the dialogue (call). Therefore, misrecognition during voice recognition can be suppressed, and thus information extraction can be accurately performed.

[0074] ≪Modification Example≫ As described above, the information collection system 100 according to the present invention has been described in the embodiment, but the present invention is not limited to these descriptions, and various changes can be made. For example, in the embodiment, the case where the detection result of a predetermined sensor 61 (see FIG. 2) and the imaging result of a camera 62 (see FIG. 2) are used for information collection has been described, but it is not limited to this. That is, each of the following information may be used in the information collection system 100 or an external system (not shown) using AI. Note that the external system (not shown) analyzes the result of information collection and outputs a request for adding a confirmation item, etc. to the information collection system 100 for a predetermined individual confirmation list. For example, in addition to the data of a load-responsive device (not shown) that changes the driving force and braking force of a train based on the number of passengers and the weight of the cargo, vehicle information such as the data of a predetermined train information management device (not shown) may be used for information collection (including analysis by an external system). In addition, for example, in addition to OD information (origin-destination information) used to grasp passenger trends and data of IC cards obtained through automatic ticket gates, passenger information such as the presence or absence of rescue from trains during station-to-station congestion may be used for information collection and the like. Also, station information including data indicating the characteristics of stations and data of a predetermined station control device (not shown) may be used for information collection and the like. In addition, in addition to timetable information such as data indicating the characteristics of lines, data on additional delays due to operation restrictions, and data on diversion transport arrangements, data of a predetermined operation management system (not shown), a vehicle operation management system (not shown), and a situation monitoring system (not shown) may be used for information collection and the like. In addition, in addition to crew operation information and data on crew shifts, crew information such as the position information of crew members based on GPS (Global Positioning System) may be used for information collection and the like. Additionally, equipment information such as the arrangement of cranes in the event of a train derailment, data related to train failures and abnormalities, and data of signal lights, route control devices, and level crossings may be used for information collection and the like.

[0075] In addition, in the embodiment, the case where the control unit 20 selects an individual confirmation list based on the type of transportation failure, the operation arrangement phase, and the attributes of the interlocutor has been described, but it is not limited thereto. That is, when a transportation failure occurs in the train (mobile body), the control unit 20 may cause the display 41 (display means: see FIG. 1) to display an individual confirmation list in which the confirmation items to be confirmed by the dispatcher are listed corresponding to the type of transportation failure. In this case, the control unit 20 reflects the result of voice recognition of the conversation content regarding the transportation failure between the dispatcher and the other party with whom the dispatcher has communicated on the individual confirmation list and displays it. Thereby, a predetermined individual confirmation list corresponding to the type of transportation failure can be presented to the dispatcher. Note that the conversation content regarding the operation arrangement after the transportation failure also shall be included in the "conversation content regarding the transportation failure". Specifically, for example, in operation arrangement phase 2 or 3, regarding the newly considered train operation diagram, whether vehicle formation and crew assignment are possible, or if not possible, what the reasons are, etc., the operation information conversed between the transportation command and the operation command also shall be included in the "conversation content regarding the transportation failure".

[0076] Further, the control unit 20 may cause the display 41 (display means: see FIG. 1) to display an individual confirmation list corresponding to the type of transportation failure of the train (mobile body) and corresponding to the current operation arrangement phase. Thereby, in addition to the type of transportation failure, a predetermined individual confirmation list corresponding to the current operation arrangement phase can be presented to the dispatcher.

[0077] Further, the control unit 20 may cause the display 41 (display means: see FIG. 1) to display an individual confirmation list corresponding to the type of transportation failure of the train (mobile body) and corresponding to the attributes of the other party with whom the dispatcher is communicating. Thereby, in addition to the type of transportation failure, a predetermined individual confirmation list corresponding to the attributes of the other party of the conversation can be presented to the dispatcher.

[0078] In addition, in the embodiment, the case where the individual confirmation list is displayed on the display 41 (display means) in the command room has been described, but the present invention is not limited to this. For example, as the "display means" on which the individual confirmation list is displayed, in addition to mobile phones, smartphones, tablets, glasses-type wearable terminals and the like may be used. Further, in the embodiment, the case where the microphone 43 (see FIG. 1) is used as the communication means has been described, but the present invention is not limited to this. For example, mobile phones, smartphones, tablets and the like may be used as the communication means.

[0079] In addition, when a plurality of different individual confirmation lists are created in parallel, the content of the confirmation items of another individual confirmation list may be reflected in the content of the confirmation items of a predetermined individual confirmation list. In addition, in the embodiment, the case where a transportation failure of a train (mobile body) has occurred has been described, but the present invention is not limited to this. For example, in addition to airplanes and ships, the embodiment can also be applied to transportation failures of "mobile bodies" such as buses and taxis.

[0080] Further, the processing (information collection method) of the information collection system 100 may be executed as a predetermined program of a computer. The above-described program can also be provided via a communication line, or can be written on a recording medium such as a CD-ROM and distributed.

[0081] In addition, the embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the configurations described. Also, for a part of the configuration of the embodiment, addition, deletion, and replacement of other configurations are possible. In addition, the above-described mechanisms and configurations show those considered necessary for explanation, and not all mechanisms and configurations are necessarily shown on the product.

Explanation of Reference Numerals

[0082] 100 Information collection system 10 Storage unit 11 Voice recognition model 12 Voice data Individual confirmation list for 13, 13A, and 13B 131A play button 14 Information collection rules 15 Conversation history 16 Sensor and camera data 20 Control unit 21 Data acquisition unit 22 Failure type determination unit 23 Phase determination unit 24 Voice recognition unit 25 Speaker determination unit 26 Information confirmation unit 30 Communication interface 40 Terminal 41 Display (display means) 42 Keyboard 43 Microphone 61 Sensor 62 Camera Commanders G1, G2, G3, G4

Claims

1. A control unit that causes a display means to display an individual confirmation list in which confirmation items to be confirmed by a commander when a transport failure of a moving body occurs are listed corresponding to the type of the transport failure, The control unit, reflects and displays, in the individual confirmation list, a result of voice recognition of a conversation content regarding the transport failure between the commander and the other party with whom the commander has communicated, When a predetermined one of the confirmation items included in the individual confirmation list is mentioned in a conversation between the commander and the other party, the content of the confirmation item is added to the individual confirmation list, an information collection system.

2. The content of the confirmation item displayed on the display means is changeable by an operation of a keyboard or a touch panel The information collection system according to claim 1, characterized in that.

3. The control unit displays a predetermined playback button in association with the confirmation item, When the playback button is selected, the recorded conversation content of the confirmation item is played back as voice The information collection system according to claim 1, characterized in that.

4. A control unit that causes a display means to display an individual confirmation list in which confirmation items to be confirmed by a commander when a transport failure of a moving body occurs are listed corresponding to the type of the transport failure, The control unit, reflects and displays, in the individual confirmation list, a result of voice recognition of a conversation content regarding the transport failure between the commander and the other party with whom the commander has communicated, When there is an additional request for a new confirmation item from the commander or an external system for a predetermined one of the individual confirmation lists, the display means displays the individual confirmation list in which the new confirmation item related to the additional request is added, an information collection system.

5. A control unit that causes a display means to display an individual confirmation list in which confirmation items to be confirmed by a commander when a transportation failure of a moving body occurs are listed corresponding to the types of the transportation failures. The control unit reflects and displays the result of voice recognition of the conversation content regarding the transportation failure between the commander and the other party with whom the commander has a call on the individual confirmation list. An information collection system that, when the contents of responses obtained by the commander from a plurality of the other parties are different for a predetermined one of the confirmation items, re-collects data regarding the confirmation item.

6. A control unit that causes a display means to display an individual confirmation list in which confirmation items to be confirmed by a commander when a transportation failure of a moving body occurs are listed corresponding to the types of the transportation failures. The control unit reflects and displays the result of voice recognition of the conversation content regarding the transportation failure between the commander and the other party with whom the commander has a call on the individual confirmation list. An information collection system that, when different responses are mixed as responses obtained by the commander from the other party of the call at a plurality of timings for a predetermined one of the confirmation items, gives priority to the latest response.

7. A control unit that causes a display means to display an individual confirmation list in which confirmation items to be confirmed by a commander when a transportation failure of a moving body occurs are listed corresponding to the types of the transportation failures. The control unit reflects and displays the result of voice recognition of the conversation content regarding the transportation failure between the commander and the other party with whom the commander has a call on the individual confirmation list. An information collection system that, when the content of a predetermined one of the confirmation items conflicts with the imaging result of a camera that images the inside of the moving body or a camera provided at the parking location of the moving body, gives priority to the imaging result of the camera.

8. A control unit that causes a display means to display an individual confirmation list in which confirmation items to be confirmed by a commander when a transportation failure of a moving body occurs are listed corresponding to the type of the transportation failure. The control unit reflects and displays, in the individual confirmation list, the result of voice recognition of the conversation content regarding the transportation failure between the commander and the other party with whom the commander has communicated. An information collection system that gives priority to the detection result of a sensor when the content of a predetermined confirmation item conflicts with the detection result of a sensor that detects a predetermined state quantity related to the operation of the moving body.

9. The control unit causes the display means to display the individual confirmation list corresponding to the type of the transportation failure of the moving body and corresponding to the current driving arrangement phase. The information collection system according to any one of claims 1 to 8, characterized in that.

10. The control unit causes the display means to display the individual confirmation list corresponding to the type of the transportation failure of the moving body and corresponding to the attribute of the other party with whom the commander is communicating. The information collection system according to any one of claims 1 to 8, characterized in that.

11. The control unit performs voice recognition of the conversation content using, among a plurality of voice recognition models, the one corresponding to the attribute of the other party with whom the commander is communicating. The information collection system according to any one of claims 1 to 8, characterized in that.

12. Including a display control process that causes a display means to display an individual confirmation list in which confirmation items to be confirmed by a commander when a transportation failure of a moving body occurs are listed corresponding to the type of the transportation failure. In the display control process, reflects and displays, in the individual confirmation list, the result of voice recognition of the conversation content regarding the transportation failure between the commander and the other party with whom the commander has communicated. An information collection method for adding the content of a confirmation item to the individual confirmation list when the confirmation item is mentioned in a call between the instructor and the other party among the predetermined confirmation items included in the individual confirmation list.

13. A program for causing a computer to execute the information collection method according to claim 12.

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