JP2017222274A - Voice information switching device for railway vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable voice information to be switched properly by a simple operation without damaging tone quality of the voice information from a tablet or the like, and without obstructing emergency broadcast or the like.SOLUTION: A voice information switching device for a railway vehicle includes voice output means 70 for outputting voice information, sound collection means 10 for collecting voice information so as to output voice from the voice output means 70, and voice information storage means 20 that can output voice from the voice output means 70, and stores desired voice information beforehand so as to selectively reproduce it. It has a sound collection broadcast mode for voice-outputting voice information input from the sound collection means 10 through the voice output means 70, and a reproduction broadcast mode for reproduction-outputting the stored voice information through the voice output means 70 when a predetermined voice level of the voice information storage means 20 is detected. When the sound collection means 10 is selected in the reproduction broadcast mode, the mode is switched to the sound collection broadcast mode.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a voice information switching device for a moving body, and in particular, a voice information switching device for a railway vehicle that appropriately switches voice information such as tourist guidance and emergency broadcast corresponding to each language.

  Conventionally, various types of emergency broadcasts and guidance broadcasts are desired for moving bodies such as railway vehicles used by many passengers. Based on such requests, various in-car broadcasts, calls between crew members, emergency calls, etc. are possible. A voice information system has been proposed (see, for example, Patent Document 1).

  Here, Patent Document 1 includes an in-vehicle communication system including an in-vehicle broadcast system, an inter-crew communication system, an emergency call system between passengers and the crew, a radio communication control device mounted on a railway vehicle, and each radio base station. A communication system for a railway vehicle including a wireless communication system including a wireless terminal carried by a crew member, a connection control device that mutually converts control signals between the in-vehicle communication system and the wireless communication system, and the like is disclosed.

JP 2014-008800 PR

  However, although the prior art disclosed in Patent Document 1 can provide voice information such as voice guidance by switching various communication systems, it is necessary to newly construct a large-scale communication system. There was a concern that it would be difficult to adopt it economically only on routes with many passengers such as clubs.

  In addition, as seen in the recent increase in inbound demand, the number of foreign tourists visiting Japan has increased rapidly, and such tourists have to visit local and local sites to explore historical and cultural attractions, events, etc. The use of lines is also increasing. And as a response to such demands, appropriate tourist information broadcasting in multiple languages has been demanded, but voice information corresponding to individual local lines is standardly installed in all railway vehicles An extremely large amount of data and a large amount of cost are required, which is not realistic. In particular, old-type vehicles that are often found on local lines (for example, vehicles that are 30 to 40 years old after introduction) are separated from information network systems related to management and control of vehicle operations, etc. Is technically and economically difficult and requires a simple response.

  Therefore, in such information broadcasting (especially local line stand-alone vehicles separated from the information network), non-existing automatic broadcasting, such as sightseeing for foreign passengers depending on local events, etc. When providing guidance in a foreign language, foreign language guidance broadcasts, etc. are output from the speaker of an external audio device such as a tablet, and this is used as a speaker such as a tablet by the crew using the microphone installed in the vehicle. The sound information is picked up and broadcast in the car.

  However, with this method, noise such as noise is picked up by the microphone, so the sound quality is poor. Further, regarding the operation, since the playback operation of the tablet and the switch operation of the microphone must be performed simultaneously, the operability is poor. It was happening.

  Therefore, the present invention has been made in view of the above-described problems of the prior art, and does not impair the sound quality of audio information from a tablet or the like, and does not impede emergency broadcasting or the like, and can be easily operated. It is an object of the present invention to provide an audio information switching device that can appropriately switch audio information at a low cost.

  In order to achieve the above object, a railway vehicle audio information switching device according to the present invention is preliminarily laid on a railway vehicle and outputs audio information; Sound collection means for collecting sound information so that sound can be output; and sound information storage means for storing desired sound information in advance so that sound can be output from the sound output means and desired sound information can be selectively reproduced. A sound collection broadcast mode for outputting sound information input from the means via the sound output means, and outputting the stored sound information when the predetermined sound level of the sound information storage means is detected. A reproduction broadcast mode for reproducing and outputting via the means, and switching to the sound collection broadcast mode when the sound collection means is selected in the reproduction broadcast mode. Than is.

  Here, the case where the sound collecting means is selected means a case where the sound collecting means is activated, such as when an operation button such as an existing microphone is turned on (pressed or the like).

  When configured in this way, emergency information, etc. can be sent without changing the current system (without requiring new broadcasting wiring work) using the existing microphone route mounted on all railway vehicles. Providing promptly, it is possible to easily provide appropriate audio information corresponding to each individual route with good sound quality.

  In addition, when the sound information storage means is selected in the sound collection broadcast mode, the sound collection broadcast mode can be maintained.

  When configured in this manner, emergency information or the like can be reliably broadcast without being interrupted by the reproduced audio information.

  In the playback broadcast mode, a predetermined delay time may be provided from when a predetermined audio level is detected until the stored audio information is reproduced and output from the audio output means.

  When configured in this way, it is possible to prevent the beginning portion of the playback audio information from being lost when the playback broadcast mode is started up or switched.

  In the playback broadcast mode, the playback audio information from the audio information storage means can be matched with the level of the audio information from the sound collection means.

  In the case of such a configuration, it is possible to prevent sound cracks and the like of the reproduced audio information in advance and contribute to further improving the quality of the audio information.

  Furthermore, in the playback broadcast mode, when the sound collecting means is selected, the sound information stored in the sound information storing means is temporarily stopped, and when the sound collecting means is deselected, the sound information is stored. The audio information in the information storage means may be released from the pause and played back.

  When configured in this way, it is possible to continuously output the reproduction audio information after the pause after the microphone broadcast, without omitting the reproduction audio information during the microphone broadcast.

  Furthermore, it can be attached to and detached from the pre-laid holding part of the sound collecting means, and can also be used as a holding part for holding the sound collecting means.

  When configured in this way, it is possible to contribute to downsizing and multi-functioning of the apparatus by sharing functions and combining.

  Furthermore, you may provide the charging port of the said audio | voice information storage means.

  When configured in this way, it is possible to contribute to downsizing and multi-functioning of the apparatus by sharing functions and combining.

  ADVANTAGE OF THE INVENTION According to this invention, the audio | voice information switching apparatus which can switch audio | voice information by simple operation, without impairing the sound quality from a tablet etc., diverting the existing broadcast path | route without interfering with emergency broadcast etc. is comprised simply. And can be realized at low cost.

It is a functional block diagram which shows the structure of the audio | voice information switching device for rail vehicles which concerns on this invention. It is a schematic diagram which shows the structure of one Embodiment of the audio | voice information switching device for rail vehicles which concerns on this invention. It is a schematic diagram which shows the structure of another embodiment of the audio | voice information switching device for rail vehicles which concerns on this invention. It is a schematic diagram which shows the use condition of the audio | voice information switching device for rail vehicles which concerns on this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a railway vehicle audio information switching device according to the present invention will be described with reference to the drawings. Here, FIG. 1 is a functional block diagram showing the configuration of the voice information switching device of the present invention, FIG. 2 and FIG. 3 are schematic views showing the embodiments, and FIG. 4 shows a use state (attachment state). It is a schematic diagram.

  The railway vehicle audio information switching apparatus 1 according to the present embodiment can be connected to an external audio information storage means such as a tablet, and can be used to divert an existing broadcast route laid on the railway vehicle. In addition, it is detachably installed in an existing broadcasting path formed from an amplifier, a speaker, and the like.

  In the present embodiment, as the audio information storage means, any device (hereinafter referred to as a tablet or the like) that can store audio information and can output audio, such as a PC, a tablet, or a music player, is employed. can do. And as the audio | voice information stored, the tourist guide information according to the area, event information, etc. can be suitably recorded in multiple languages (for example, English, Chinese, Japanese etc.).

  As schematically shown in FIG. 1, a railway vehicle audio information switching apparatus 1 according to the present embodiment includes an existing microphone (for example, a condenser microphone) 10 that is a sound collecting unit and a speaker that is an existing audio output unit. 70 and the amplifier 60, and is configured to be connectable to a tablet 20 or the like as audio information storage means.

  A sound collection broadcast mode (hereinafter referred to as a microphone broadcast mode) that has a sound switching control circuit 30 and outputs sound information collected from an existing microphone (sound collecting means) 10 from an existing speaker (sound output means) 70. And a reproduction broadcast mode for reproducing and outputting audio information selected from the tablet 20 or the like from an existing speaker (audio output means) 70 in a predetermined case.

  In the microphone broadcast mode, the microphone input unit 11 and the microphone input detection circuit 12 are input to the audio switching control circuit 30 and connected to the existing amplifier 60 and speaker 70 via the audio output unit 40 and the amplifier control output unit 50. Broadcast routes are formed. Then, the microphone input detection circuit 12 detects on / off of the existing microphone 10, and when the microphone 10 is turned on, the relay contact is immediately switched to the microphone broadcasting mode (P contact side in FIG. 1). The sound input to the microphone 10 is output from the existing speaker 70.

  In the present embodiment, the voice information switching device 1 has a unique power source. For example, as schematically shown in FIG. As schematically shown in FIG. 3, it is possible to adopt a form according to the power supply type or the installation type, such as a portable 1B that operates with a built-in battery.

In the present embodiment, the installation type includes a plurality of microphone connection portions 10C, charging ports 20C of tablets 20 and the like. In this embodiment, the substantially aggregate on one side 1A ₀ square (specifically of a stationary 1A the plurality of microphone connection portion _{10C, 10C out1, 10C in1,} 10C out2, 10C in2 one side one side 1A ₀ This reduces the cable routing space and saves space during installation.

On the other hand, as schematically shown in FIG. 4, the portable type has a mounting portion 10F that can be attached to an existing microphone holder 10H and a microphone holding portion 10R that holds the existing microphone 10. . As a result, it can be easily attached to the microphone holder 10H (the microphone 10) installed in all new and old existing vehicles, and the device can be miniaturized by combining functions and combining them. It should be noted that a plurality of microphone connection portions 10C _out1 , 10C _in1 , 10C _out2 , 10C _in2 and the like similar to the installation type 1A may be provided for the portable type 1B.

  As a result, even when a crew member changes from an old model separated from the information network to another old model vehicle, the crew member carries the portable type 1B and replaces the voice information switching device 1B (changes to another vehicle). Just a similar service can be provided. At this time, for different types of microphones between different types of railway vehicles (especially between local vehicles separated from the network) by using attachments according to the types (2 to 3 types) of the existing microphones 10. Thus, the common voice information switching device 1B can be easily connected.

  In order to always give priority to the broadcast route by the existing microphone 10, the broadcast route is formed so as to be in the sound collection broadcast mode (microphone broadcast mode) (P contact point in FIG. 1). side). Thereby, for example, even when the power of the audio information switching device 1 is cut off, the microphone broadcasting path is maintained, and emergency broadcasting by the crew's microphone 10 is performed without affecting the microphone circuit. Etc. are possible.

  On the other hand, in the playback broadcast mode, the external audio input unit 21 and the external device control unit 25 are input to the audio switching control circuit 30, and the existing amplifier 60 and speaker 70 are connected via the audio output unit 40 and the amplifier control output unit 50. Is connected to the broadcasting route. In the present embodiment, the external audio input unit 21 is further input to the audio switching control circuit 30 via the delay circuit 22, the adjustment circuit 23, and the external audio detection circuit 24. When the crew member operates the tablet 20 or the like, selects appropriate sound information (for example, tourist information in Chinese) from a menu prepared in advance and reproduces the sound information, the external sound detection circuit 24 The level of the audio information is detected, and if the audio information is above a certain level, it is determined that there is reproduction audio information, and the relay contact is switched to the reproduction broadcast mode (S contact side in FIG. 1). At this time, in order to compensate for the rise time (for example, about 0.5 seconds) of the existing amplifier 60, the start time (output start time) of the reproduced audio information is delayed, and the beginning information of the reproduced audio information is missing. Prevents it in advance. This delay time can be set arbitrarily.

  In addition, in the present embodiment, in order to divert the existing microphone broadcasting path laid on all railway vehicles, the output level of the reproduction audio information is adjusted to be equal to the output level of the existing microphone 10. Is output from an existing speaker 70 via an adjustment circuit 23 (for example, an attenuation circuit such as an attenuator). As a result, deterioration in quality such as sound cracking of reproduced audio information is prevented in advance.

  Next, the operation procedure of the voice information switching device 1 according to the present embodiment will be described below.

  First, the normal broadcast route is the microphone broadcast mode.

  Then, in this microphone broadcasting mode, when the operator (crew) operates the tablet 20 or the like and selects the content of any audio information (tourist information, etc.) or the output language (Japanese, English, Chinese, etc.) On the voice information switching device 1 side, a predetermined voice output level of the tablet 20 or the like is detected and the voice information is output from the speaker 70. At this time, in order to prevent the beginning of the reproduced audio information from being cut off, the output of the reproduced audio information is delayed for a predetermined time, and the output level is adjusted so as to be equal to the level of the normal microphone broadcast, and the existing speaker is The audio is output from 70. It should be noted that tourist information or the like produced by a crew member may be voice-recognized by the tablet 20 or the like, and the content automatically translated into an arbitrary foreign language and output as reproduced voice information.

  Next, when the switch of the microphone 10 is turned on in the reproduction broadcast mode, the relay is switched by the microphone input detection circuit 12 (switching to the P contact side in FIG. 1), and emergency information or the like by the microphone 10 can be broadcast. It becomes.

  In the present embodiment, when the playback broadcast mode is switched to the microphone broadcast mode, the playback audio information of the tablet 20 or the like is temporarily stopped. Specifically, when the microphone sound is detected during the reproduction sound detection, the external device control unit 25 sends a pause signal to the tablet 20 or the like to temporarily stop the reproduction sound information. Thereafter, when it is detected that the microphone 10 is turned off, the external device control unit 25 sends a pause release signal to the tablet 20 or the like, and the playback audio information after the pause can be output. Thereby, it is possible to output the playback audio information after the pause after the microphone broadcast is finished without omitting (skipping) the playback audio information during the microphone broadcast.

  On the other hand, even if the tablet 20 or the like is operated in the microphone broadcasting mode, since the microphone broadcasting has priority, the relay contact is not switched (maintaining the P contact), and emergency information by the microphone 10 is interrupted. The emergency information can be broadcast without fail.

  As described above, according to the railway vehicle audio information switching device 1 according to the present invention, the existing microphone broadcasting route laid on all new and old vehicles is diverted to provide multilingual tourist guidance from the tablet 20 or the like. Therefore, it is possible to provide appropriate audio information with high flexibility and convenience at a low cost without impairing the sound quality of the audio information and the like and without interfering with the emergency microphone broadcasting.

  The technical scope of the present invention is not limited to the above-described embodiments, and various changes or improvements can be added without departing from the scope of the present invention. For example, the voice information switching device 1 according to the present invention can be applied not only as a railway vehicle but also as a voice information switching device for other moving bodies such as aircraft.

1: railway vehicle voice information switching device, 10: microphone, 10C: microphone connection section, 10F: microphone mounting section, 10H: microphone holder, 10R: microphone holding section, 11: microphone input section, 12: microphone input detection circuit, 20: tablet, 20C: charging port, 21: external audio input unit, 22: delay circuit, 23: adjustment circuit, 24: external audio detection circuit, 25: external device control unit, 30: audio switching control circuit, 40: Audio output unit, 50: amplifier control output unit, 60: amplifier, 70: speaker

Claims (7)

Voice output means that is laid in advance on the railway vehicle and outputs voice information;
A sound collecting means that is preliminarily laid on a railway vehicle and collects sound information so that sound can be output from the sound output means;
A voice information storage means that can output voice from the voice output means and stores in advance the desired voice information so that it can be selectively reproduced;
The sound collection broadcast mode for outputting the sound information input from the sound collection means via the sound output means, and the stored sound information when a predetermined sound level of the sound information storage means is detected. A playback broadcast mode for playback output through the audio output means,
The railway vehicle audio information switching device according to claim 1, wherein when the sound collecting means is selected in the reproduction broadcast mode, the sound vehicle switching information mode is switched to the sound collection broadcast mode.   2. The railway vehicle audio information switching device according to claim 1, wherein the sound collection broadcast mode is maintained when the audio information storage means is selected in the sound collection broadcast mode.   3. The playback broadcast mode according to claim 1, wherein a predetermined delay time is provided from when a predetermined audio level is detected to when the stored audio information is reproduced and output from the audio output means. Voice information switching device for railway vehicles.   4. The railway vehicle audio information according to claim 1, wherein, in the reproduction broadcast mode, the reproduced audio information from the audio information storage unit is matched with a level of audio information from the sound collecting unit. 5. Switching device.   In the playback broadcast mode, when the sound collecting means is selected, the sound information stored in the sound information storing means is temporarily stopped, and when the sound collecting means is deselected, the sound information storing is performed. The railway vehicle audio information switching device according to any one of claims 1 to 4, wherein the audio information is temporarily stopped and reproduced by the means.   6. The sound for a railway vehicle according to claim 1, wherein the sound for the railway vehicle can be attached to and detached from a holding portion of the sound collecting means laid in advance and also serves as a holding portion for holding the sound collecting means. Information switching device. The voice information switching device for railway vehicles according to any one of claims 1 to 6, further comprising a charging port for the voice information storage means.

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