JP2019127107A - Shaking notification device and system for the same - Google Patents

Abstract

To provide a shaking notification device which accurately notifies passengers of shaking.SOLUTION: A shaking notification system 1 which advises trains 10, 20 traveling in a prescribed passage section comprises a calculating unit to calculate an arrival schedule time when a train arrives at a sound generating position, based on a sound generating position which indicates the train position at the time when straps 15 in a train make sound louder than a prescribed sound pressure level and a present position of a train traveling in a prescribed passage section, a determination unit which determines whether the present time passes through the arrival schedule time or not and an output unit to output a notification of shaking of the train based on the determination result of the determination unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sway notification apparatus and sway notification system, and is suitably applied to, for example, a sway notification apparatus and a sway notification system for notifying a sway of a train based on a sound generated by a tie.

  Trains are required to operate safely and accurately. However, there may occur a situation in which a passenger falls over in the vehicle or comes into contact with another passenger due to shaking during operation. When such a situation occurs, it takes a long time to stop at the nearest station in order to deal with it, leading to a delay in operation. In order to avoid such a situation, it is preferable to prompt the passenger to fall and retract before the vehicle shakes greatly.

  In this respect, a technique is disclosed that searches the memory for the unstable position and determines whether the train has reached the unstable position based on the searched unstable position and the current position (Patent Document 1). reference).

JP 2012-096574 A

  In the technology described in Patent Document 1, the position where a curve is reached, the position of a branch point, the position of a station, etc. is adopted as an unstable position, so that passengers can predict shaking, but the strap There is a problem that it can not be judged whether it is a fluctuation that it must have, and it becomes an unnecessary notification.

  The present invention has been made in view of the above points, and an object of the present invention is to propose a shake notification apparatus that performs high-precision notification to passengers regarding a shake.

  In order to solve such problems, in the present invention, in a train traveling on a predetermined track section, a sound indicating the position of the train when a sound of a predetermined sound pressure level or more is emitted by a strap of the train A calculation unit for calculating an estimated arrival time indicating the time when the train arrives at the sound generation position based on the generation position and the current train position of the train traveling on the predetermined track section; A determination unit that determines whether or not time has reached the estimated arrival time and an output unit that outputs a notification related to the shaking of the train based on a determination result by the determination unit are provided.

  According to the above configuration, the notification related to the shaking is performed based on the sound generation position when the sound having the predetermined sound pressure level or more is issued, so that the use of the strap is to be careful in advance against the shaking. Can be urged.

  According to the present invention, it is possible to notify a passenger of shaking with high accuracy.

It is a figure which shows an example of a structure of the shaking notification system by 1st Embodiment. It is a figure which shows an example of the database by 1st embodiment. It is a figure which shows an example of the process sequence which concerns on the sound collection process by 1st Embodiment. It is a figure which shows an example of the process sequence which concerns on the shake notification process by 1st Embodiment. It is a figure which shows an example of a structure of the train by 2nd Embodiment.

  An embodiment of the present invention will now be described in detail with reference to the drawings.

(1) First Embodiment In a car with a high occupancy rate, the car rides standing regardless of age or gender, so the car shakes at the departure from the station, at a branch point, or at the station, and the passenger falls or contacts. Problems such as may occur. Therefore, it is preferable to notify the shaking before the train shakes. Here, although there are various train conditions and passenger attributes, in the prior art, there is a problem that notification is uniformly performed. Below, the structure (method) which solves this problem is mainly demonstrated.

  In FIG. 1, reference numeral 1 denotes the shaking notification system according to the first embodiment as a whole. The swing notification system 1 is configured to include a train 10, a train 20, and a database 30.

  The train 10 is provided on a ceiling of a vehicle, a microphone 11 for converting sound into an electric signal, an automatic train protection (ATP) device 12 capable of acquiring position information of the train 10, a recording device 13 for recording various information And a strap 15 suspended from the pole 14 for a standing passenger to hold for the purpose of supporting the body.

  In such a train 10, in a predetermined track section, the vibration of the strap 15 is databased as data by using the swing of the train 10 as a passenger reaction. More specifically, the passenger holds the strap 15 in a vehicle with a high occupancy rate. When the inside of the vehicle shakes, the grip strap 15 and the pole 14 which are grasped rub against each other to make a sound. The microphone 11 is provided in the car of the train 10, collects such sound, and the recording device 13 digitizes the magnitude of the vibration based on the size of the frequency band of the sound and the time of emitting the sound. The evaluated and evaluated information is recorded as a database 30 (see FIG. 2) together with the position information from the ATP device 12. The details will be described later with reference to FIG.

  Generally, in order to evaluate vehicle shake, various sensors and the like are required, so that the vehicle needs to be repaired. Therefore, it is difficult to introduce it to old vehicles. In addition, the maintenance cost of the mounted sensor also hinders the introduction of the device. In this respect, in the present embodiment, since the microphone 11 is used as an example of the sound collecting unit in sound collection, even an old vehicle can be easily introduced, and maintenance costs can be kept low. Can do.

  The recording device 13 is a computer, a server device, etc., and includes a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), a hard disk drive (HDD), etc. The

  The function (recording unit or the like) of the recording device 13 may be realized by, for example, the CPU reading a program stored in the ROM to the RAM and executing it (software), or by hardware such as a dedicated circuit. It may be realized, or software and hardware may be realized in combination. Also, part of the functions of the recording device 13 may be realized by another computer that can communicate with the recording device 13.

  The train 20 relates to shaking of the portable information terminal 40 via the antenna 22 via the antenna 22 for transmitting and receiving information to and from the ATP device 21 capable of acquiring the position information of the train 20, the portable information terminal 40 carried by the passenger And a shake notification device 23 for giving a notification. The train 20 travels on the same predetermined track section as the train 10 and outputs a notification related to shaking based on the database 30 and the current position and current time of the train 20. The details will be described later with reference to FIG.

  The shaking notification device 23 is a device that notifies the passenger's portable information terminal 40 of shaking based on the database 30 before reaching a shaking place, is a computer, a server device, etc. RAM, ROM, HDD, etc. are comprised.

  The function (calculation unit, determination unit, output unit, etc.) of the shake notification device 23 may be realized by, for example, the CPU reading a program stored in the ROM into the RAM and executing it (software), or a dedicated function. It may be realized by hardware such as a circuit, or may be realized by combining software and hardware. Also, part of the function of the shake notification device 23 may be realized by another computer that can communicate with the shake notification device 23.

  FIG. 2 is a diagram illustrating an example of the database 30 recorded by the recording device 13. As shown in FIG. 2, the database 30 contains train NO. The information of about a kilometer, the measurement time, and the evaluation of the shaking are stored in association with each other.

  About kilometer is an example of a sound generation position (a relative position may be used or an absolute position) indicating a position of the train 10 when a sound of a predetermined sound pressure level or more is emitted by the strap 15 of the train 10 In this example, the distance from the measurement start point is shown.

  The measurement time may include an example of a sound generation time (a date, a day of the week, or the like) indicating a time when a sound of a predetermined sound pressure level or more is emitted by the strap 15 of the train 10. And, in this example, indicates the time at which the sound was measured.

  The evaluation of shaking is an index indicating the magnitude of shaking. As evaluation of shaking, evaluation "1" showing large-scale shaking, evaluation "2" showing medium-scale shaking, and evaluation "3" showing small-scale shaking will be described as an example of three stages of evaluation. However, the present invention is not limited to this, and may be, for example, a two-stage evaluation, or four or more-stage evaluation.

  FIG. 3 is a diagram illustrating an example of a processing procedure related to the sound collection process performed in the train 10. Note that the sound collection processing is executed by, for example, the recording unit of the recording device 13.

  The recording device 13 collects (acquires) sound from the microphone 11 (step S11).

  Subsequently, the recording device 13 determines whether or not the collected leather is a sound that the strap 15 gripped by the passenger rubs against the pole 14 (step S12). If the recording device 13 determines that it is a sound that the strap 15 is rubbed, the process proceeds to step S13, and if it is determined that the sound is not a rubbed, the processing proceeds to step S11.

  For example, the recording device 13 performs a Fourier transform on the speech waveform input from the microphone 11 and spectrums the speech waveform obtained by the Fourier transform. Here, the speech waveform of the rubbing sound of the strap 15 is Fourier-transformed and spectrumd in advance. The recording device 13 determines whether or not the sound (sound data) of the strap 15 is rubbed by comparing the spectrum of the sound waveform inputted from the microphone 11 with the spectrum of the voice waveform rubbed by the strap 15. .

  Also, for example, the recording device 13 performs a matching process on the voice waveform input from the microphone 11 and the voice waveform of the rubbing sound of the strap 15 prepared in advance to obtain the similarity, and the obtained similarity is a threshold value. It may be determined whether or not.

  In step S13, the recording device 13 determines whether or not the sound pressure level of the rubbing sound of the strap 15 is less than a specified decibel (threshold value). If it is determined that the recording device 13 is less than the specified decibel, the processing moves to step S11, and if it is determined that it is equal to or more than the specified decibel, the processing moves to step S14.

  In step S14, the recording device 13 acquires about a kilometer (the current train position) from the ATP device 12.

  In step S15, the recording device 13 digitizes and evaluates the rubbing sound of the strap 15. For example, the recording device 13 evaluates that the greater the sound pressure level, the greater the shaking. Further, for example, in addition to or instead of the sound pressure level, it may be evaluated that the longer the time during which the rubbing sound of the strap 15 is generated, the greater the shaking.

  In step S16, the recording device 13 determines that the train No. , The current train position, the current time, and the evaluation of shaking are recorded in the database 30 in association with each other.

  Note that the database 30 is copied to the train 20 manually or automatically.

  FIG. 4 is a diagram showing an example of a processing procedure according to the swing notification processing performed in the train 20. As shown in FIG.

  The shake notification device 23 acquires about kilometer (the current train position) from the ATP device 21 (step S21).

  The shake notification device 23 determines whether it is a timing to notify (step S22). If it is determined that it is time to notify, the shake notification device 23 proceeds to step S23, and if it is determined that it is not time to notify, the vibration notification device 23 proceeds to step S21.

  More specifically, the calculation unit of the shake notification device 23 divides the difference between the current train position and the nearest kilometer of the database 30 by the current train speed to arrive at the kilometer (about (Estimated arrival time) is calculated, and the determination unit of the shake notification device 23 determines whether or not the estimated arrival time has reached a predetermined time.

  In step S23, the shaking notification device 23 (for example, the determination unit) determines whether or not the notification is appropriate (the presence or absence of a standing passenger). If the shaking notification device 23 determines that the notification is appropriate, the vibration notification device 23 proceeds to step S24. If the shaking notification device 23 determines that the notification is not appropriate, the vibration notification device 23 proceeds to step S21.

  For example, the shake notification device 23 determines whether or not the measurement time and the current time are within a predetermined range, and determines that the notification is appropriate when the measurement time and the current time are within the predetermined range. If it is determined that the notification is out of the range, it is determined that the notification is not appropriate.

  In addition, for example, the shaking notification device 23 determines whether or not it is a predetermined time zone in which the boarding rate exceeds 100%, and if it is determined that it is a predetermined time zone, the notification is appropriate. If it is determined that the time zone is not a predetermined time zone, it may be determined that the notification is not appropriate.

  Also, for example, when the boarding rate exceeds 100%, the shaking notification device 23 determines that there is a standing passenger, determines that the notification is appropriate, and stands up when the boarding rate is 100% or less. It may be determined that there are no passengers and the notification is not appropriate. Note that the boarding rate may be determined by the conductor, may be determined based on the weight of the passenger, or may be determined by other methods.

  In step S24, the shake notification device 23 outputs a notification. More specifically, based on the determination result, the output unit of the shake notification device 23 performs setting for receiving a notification related to shake (for example, installation of an application) via the antenna 22. The information terminal 40 is notified that a shake occurs (notice related to the shake). At the time of installation of the application, the attributes (age, gender, nationality, etc.) of the user (passenger) are registered.

  The portable information terminal 40 receives the notification regarding shaking (step S25).

  Subsequently, the portable information terminal 40 determines whether the attribute of the passenger requires an early notification (step S26). If the portable information terminal 40 determines that the attribute requires early notification, the process proceeds to step S28. If it is determined that the early notification is not required, the process proceeds to step S27.

  For example, if the change unit (application) of the portable information terminal 40 determines that the user is an elderly person or a woman, the change unit (application) determines that the attribute is an attribute that requires early notification. It is determined that the attribute is not required to be notified.

  In step S27, the portable information terminal 40 waits for notification timing. More specifically, the changing unit (application) of the portable information terminal 40 waits until the notification timing (predetermined time, for example, 20 seconds), and proceeds to step S28.

  In step S28, the portable information terminal 40 notifies the user that the camera shakes by vibration and / or display (shake notice notification output). In addition, the portable information terminal 40 displays the character displayed at the time of notification by the character (language) of the said country according to a passenger's attribute (nationality).

  In the present embodiment, the riding comfort against the shaking of the train is evaluated by creating a database of shaking strengths in the presence of standing passengers, and the data of the evaluated riding comfort reaches about a kilometer at which the train shakes. Notify passengers in advance. In this way, by distributing the shaking of the train to the portable information terminal of the passenger in advance, the passenger who has received the information can be prepared for the shaking of the train and reduce the fall, contact, etc. of the passenger. Can do.

  In addition, by not giving advance notice in a time slot where vacancies are present, it is possible to avoid an annoying notification.

  In addition, in the portable information terminal 40, the notification timing to shake is different according to the attribute of the passenger who holds the portable information terminal 40, so, for example, elderly people, women, etc. know the swing with a margin. Be able to prepare for shaking properly.

(2) Second Embodiment The present embodiment is different from the first embodiment in the configuration in which the database 30 is updated in real time and the updated database 30 is used to report a shake. In the following, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted as appropriate.

  FIG. 5 is a diagram showing an example of the configuration of the train 50. As shown in FIG. The train 50 includes a microphone 11, an ATP device 12, a recording device 51 that records various types of information, a pole 14, a strap 15, an antenna 22, and a shake notification device 52.

  The recording device 51 has a function (update unit) for updating the database 30 in addition to the function of the recording device 13. The recording device 51 accumulates (adds) data each time the train 50 travels so that the accuracy of the notification can be enhanced. Note that the data to be stored is not limited to the content shown in FIG. 2, and in addition to the content, data indicating the sound of the strap (waveform data, spectrum, etc.) may be stored.

  For example, by accumulating data, the wobble notification device 52 can remove noise that has occurred by chance. Also, for example, by accumulating data, the swing notification device 52 can extract feature points for each day of the week, learn that it is preferable to use different data according to the day of the week, and improve the accuracy of notification. Will be able to.

(3) Other Embodiments In the above embodiment, although the present invention is applied to the shake notification system 1, the present invention is not limited to this, and various other shake notifications may be provided. It can be widely applied to the system.

  Further, in the above-described embodiment, the case where the mobile information terminal 40 outputs that the shaking occurs is described, but the present invention is not limited to this, and the display device, the speaker, etc. in the train (not shown) ) May be output.

  In the above-mentioned embodiment, although the case where early notification is required or not was made to differ by the age of a passenger, sex, etc. was described, the present invention is not limited to this, You may make it let. For example, the portable information terminal 40 determines that early notification is necessary in the case of the evaluation “1” where the fluctuation is the largest, and determines that early notification is not necessary in the case of other evaluations. Also good.

  In the above embodiment, although the case where the portable information terminal 40 waits for notification timing according to the attribute of the passenger has been described, the present invention is not limited to this, and the shaking notification device 23 is a passenger from the portable information terminal 40 The shaking notification device 23 may wait for the notification timing according to the passenger's attribute and then notify the portable information terminal 40 of the shaking.

  In the above embodiment, the case of recording a kilometer and the measurement time for the train 10 has been described, but the present invention is not limited thereto, and a microphone is installed for each train 10 train and each train The kilometer and the measurement time may be recorded. In this case, it is possible to perform a notice related to shaking according to the condition of the vehicle. For example, if there is a situation where the first vehicle is crowded from the A station to the B station due to the location of the stairs, escalators, elevators, etc. installed at home, only the first vehicle shakes. Can be notified.

  In the above-described embodiment, the database 30 has been described as being manually or automatically replicated to the train 20. However, the present invention is not limited to this, and the database 30 is provided in a predetermined information processing apparatus. The train 20 may appropriately access the predetermined information processing apparatus.

  Moreover, although the case where the train 50 was equipped with the database 30 was described in the above-mentioned 2nd Embodiment, this invention may be made to comprise the database 30 not only this but the other information processing apparatus. In this case, since the database 30 can be shared by trains traveling on a predetermined track section, and more data can be stored, it is possible to perform a notification regarding shaking with higher accuracy.

  In the above description, information such as programs, tables, and files for realizing each function is stored in a storage device such as a memory, a hard disk, or an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD. Can be put in.

  In addition, the above-described configuration may be changed, rearranged, combined, or omitted as appropriate without departing from the gist of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Shaking notification system, 10 ... Train, 11 ... Microphone, 12 ... ATP device, 13 ... Recording device, 14 ... Paul, 15 ... Strap, 20 ... Train, 21 ... ATP device , 22 ... antenna, 23 ... shaking notification device, 30 ... database.

Claims (5)

In a train traveling on a predetermined track section, a sound generation position indicating the position of the train when a sound of a predetermined sound pressure level or more is emitted by a strap of the train, and a train segment traveling on the predetermined track section A calculation unit that calculates an estimated arrival time indicating the time when the train arrives at the sound generation position based on the current train position of the train being run;
A determination unit that determines whether or not the current time has reached the estimated arrival time;
Based on the determination result by the determination unit, an output unit that outputs a notification related to the shaking of the train, and
A shake notification device comprising: The sound generation time is associated with a sound generation time indicating a time when a sound having the predetermined sound pressure level or more is generated.
The determination unit determines whether the current time is within a predetermined range from the sound generation time,
When it is determined by the determination unit that the current time has reached the estimated arrival time, and the current time is determined to be within the predetermined range from the sound generation time, the output unit may be configured to Output a notice pertaining to the train swing,
The shake notification device according to claim 1, wherein: A sound collection unit for collecting sound in the train,
A database for storing information on the sound generation position indicating the position of the train;
And an updating unit that updates the database based on the sound collected by the sound collection unit,
When the sound collected by the sound collection unit is a sound higher than the predetermined sound pressure level emitted by the strap of the train, the updating unit determines the position of the train when the sound is collected. Adding information of sound generation position to indicate to the database,
The shake notification device according to claim 1, wherein: In a train traveling on a predetermined track section, a sound generation position indicating the position of the train when a sound of a predetermined sound pressure level or more is emitted by a strap of the train, and a train segment traveling on the predetermined track section A calculation unit that calculates an estimated arrival time indicating a time at which the train arrives at the sound generation position, based on a current train position of the train that is running;
A determination unit that determines whether or not the current time has reached the estimated arrival time;
An output unit that outputs a notification relating to the shaking of the train based on the determination result by the determination unit;
A sway notification system comprising: And a change unit configured to receive, from the output unit, a notification relating to the shaking of the train, and to change the timing of performing the notification to the passenger according to the attribute of the passenger of the train.
The shaking notification system according to claim 4, wherein:

Images