JP2020061617A - Information guidance system - Google Patents

Abstract

To provide an information guidance system that enables a user who do not understand a guidance voice to acquire guidance information without fail.SOLUTION: An acoustic signal SM is generated by synthesizing a guidance voice signal SV obtained by converting guidance information into an audible signal and a chord sound signal SC obtained by converting the guidance information into an inaudible signal, and a user having a terminal device MB can refer to the guidance information displayed on the terminal device MB to reliably acquire operation information of the transportation facility, departure/arrival information of a train, and the like by broadcasting the acoustic signal SM. In a case in which different acoustic signals SM1 and SM2 for each sound generation unit on the up and down sides of a platform are broadcast, the sound generation units broadcast the acoustic signals SM1 and SM2 that are the synthesized code sound signals SCc including the up and down guide information, and therefore, the user can refer to both the pieces of up and down guidance information on the terminal device MB, and can obtain the necessary information.SELECTED DRAWING: Figure 4

Description

  INDUSTRIAL APPLICABILITY The present invention provides information guidance that provides information such as characters and images related to the guidance voice to a terminal device such as a smartphone owned by the user of the transportation along with the guidance voice broadcast in the transportation such as a railroad or a bus. It is about the system.

  Patent Document 1 discloses an automatic broadcasting system with multilingual voice guidance in public facilities such as airports and railway stations. For example, on a railway station platform, after broadcasting the guide in Japanese, the guide having the same content as that in Japanese is subsequently broadcast in other languages such as English and Chinese.

  Also, in the information providing device installed on the platform or the like that displays the destination, the departure time, etc., the information is provided by alternately switching between Japanese and other languages such as English and Chinese. .

JP, 2013-57887, A

  However, in the automatic broadcasting system using multilingual audio guidance of Patent Document 1, it is a wasteful time to broadcast and display a language that the user cannot understand, and it is necessary to wait until the broadcast and display of a language that the user can understand. Furthermore, it is not always possible to understand the language to be broadcast and displayed. In addition, a train or the like may arrive at the platform while missing the guidance voice in a language understood by the user or overlooking the guidance display.

  Further, in the platform guidance broadcast, a part of the upstream and downstream audio broadcasts may overlap or be broadcast almost at the same time. Since trains arrive and depart in a short time, the guide voices in various languages are duplicated, and unless the user can quickly understand the guide voices, there is a possibility that the target train cannot be boarded. The same problem has also occurred at facilities related to transportation such as airports and bus stations.

  An object of the present invention is to solve the above-mentioned problems, and to reliably obtain the guidance information required by the user, even for foreigners who cannot understand the guidance voice at a facility related to transportation or people with hearing impairment. It is to provide an information guidance system capable of performing.

  An information guidance system according to the present invention for achieving the above object is an information guidance system including an information processing unit that generates an acoustic signal and a broadcast processing unit that includes a sound generation unit that broadcasts the acoustic signal. Then, the information processing unit synthesizes a guide voice signal obtained by converting the guide information into an audible signal and a chord sound signal obtained by converting the guide information into a deafness signal to generate the acoustic signal, and the acoustic signal is It is characterized in that the chord sound signal is synthesized a plurality of times with respect to one guidance voice signal.

  According to the information guidance system of the present invention, a guidance voice signal obtained by converting the guidance information into an audible signal and a chord sound signal obtained by converting the guidance information into an inaudible signal are combined to generate an acoustic signal. By broadcasting, the user who owns the terminal device can refer to the guide information displayed on the terminal device even if the foreigner who cannot understand the guide voice or the hearing impaired person operates the transportation system. Information, train departure / arrival information, etc. can be reliably acquired.

  Further, even when different audio signals are broadcast for each voice generation unit on the upstream and downstream sides of the platform, the audio generation unit broadcasts an acoustic signal that is a combination of coded sound signals including the same upstream and downstream guide information. As a result, the user can refer to both the up and down guide information and can obtain the necessary information.

1 is a configuration diagram of an information guidance system of Example 1. FIG. It is explanatory drawing explaining the structure of the acoustic signal with respect to a time-axis. 3 is a flowchart of the operation of the information guidance system of Example 1. FIG. It is explanatory drawing explaining the structure of the acoustic signal with respect to a time-axis when a part of broadcast of two audio | voice production | generation parts overlaps. It is explanatory drawing explaining the modification of the acoustic signal with respect to a time axis, when a broadcast partially overlaps. It is a block diagram of the information guidance system of Example 2.

  The present invention will be described in detail with reference to the illustrated embodiments.

  FIG. 1 is a configuration diagram of the information guidance system of the first embodiment, and it is assumed that a guidance voice is broadcast and a user of a terminal device is used in transportation such as a railroad or a bus.

  This information guidance system is composed of an information processing unit 1 installed in a machine room and the like, and a broadcast processing unit 2 installed in a place where a user is present. The information processing unit 1 outputs to the broadcast processing unit 2 an acoustic signal SM which is a combination of a guide voice signal SV and a chord sound signal SC described later.

  The broadcast processing unit 2 broadcasts the input acoustic signal SM to the space or facility for which information is to be provided. The broadcast acoustic signal SM is heard by a user of a space or facility, and at the same time, is picked up by a terminal device MB such as a smartphone owned by the user and various information is referred to by the terminal device MB. become.

  As a typical example, the configuration and function of each part will be described in detail assuming a case where there are two tracks where trains arrive and depart from a platform at a railway station.

  As shown in FIG. 1, the information processing unit 1 includes a guide information generation unit 11, a voice generation unit 12, a chord sound generation unit 13, and a voice synthesis unit 14. The guide information generation unit 11 is connected to a train operation management device (not shown), and when a broadcast instruction OD is input from the train operation management device, the guide information generation unit 11 generates guide information corresponding to the broadcast instruction OD. The train operation management function of the train operation management device may be integrated with the information processing unit 1.

  The storage unit of the voice generation unit 12 stores in advance the basic information G0, the variable information G1 to Gn, and the speech units V0 and V1 to Vn associated with the basic information G0 and the variable information G1 to Gn, which are the contents to be broadcast. Has been done.

  Further, in the storage unit of the chord sound generation unit 13, basic information G0, variable information G1 to Gn, which are contents to be broadcast, and chord phoneme pieces C0 and C1 to Cn associated with the basic information G0 and variable information G1 to Gn are stored. Are stored in advance.

  Instead of the chord phonemes C0 and C1 to Cn, one pattern in which the basic information G0 and the variable information G1 to Gn which are the contents to be broadcast are combined is defined as one chord phoneme Cr, and the basic information G0 and the variable information G1 to Gn are used. The chord phoneme pieces Cr for all the combinations may be stored in the storage unit of the chord sound generation unit 13 in advance.

  Further, the various information stored in the storage units of the voice generation unit 12 and the chord sound generation unit 13 may be stored by providing a separate storage main body unit. In this case, various information may be read from the voice generation unit 12 and the chord generation unit 13 to the storage main unit.

  The guide information is composed of basic information G0, which is a basic syntax, and variable information G1 to Gn that changes depending on the situation. In the case of railway guidance voice, for example, the basic syntax G0 is "Soon to be line (G2) (G3) on line (G1). It's dangerous, so please wait down to the white line and wait." To be In addition, the variable information G1 includes a number indicating a numbered line such as "1", the variable information G2 includes a train type such as "stop at each station", and the variable information G3 includes a destination such as "Ofuna". become.

  Note that the storage unit of the voice generation unit 12 stores a large amount of basic information G0 as guidance information, for example, "(G1) line (G2) (G3) lines will pass soon." The variable information G1 to Gn are stored in association with the basic information G0.

  The voice units V0 and V1 to Vn are information obtained by converting guide information composed of the corresponding basic information G0 and variable information G1 to Gn into voice signals in a frequency region (for example, 16 kHz or less) that can be heard by the user. is there. Similarly, the chord phonemes C0, C1 to Cn or the chord phonemes Cr are chord sounds associated with the broadcast content composed of the corresponding basic information G0 and the variable information G1 to Gn, and are higher than the listening frequency range of the user. It is an acoustic signal in a frequency region that is high and hard to hear (for example, 18 kHz to 20 kHz).

  The guide information including the basic information G0 and the variable information G1 to Gn is output from the guide information generating unit 11 to the voice generating unit 12 and the chord sound generating unit 13, respectively. The voice generation unit 12 reads out the voice units V0 and V1 to Vn associated with the input basic information G0 and variable information G1 to Gn from the storage unit, performs voice synthesis, and generates a guidance voice signal SV. For example, it is possible to generate, as the guidance voice signal SV, a voice such as "Soon, line 1 will stop at Ofuna. It's dangerous, so please drop down to the white line and wait." It should be noted that a known voice generation technique is appropriately adopted for this generation processing.

  On the other hand, the chord sound generation unit 13 reads the chord phoneme pieces C0 and C1 to Cn associated with the input basic information G0 and variable information G1 to Gn from the storage unit, arranges them in time series, and synthesizes them. Generate the signal SC. Since the chord sounds are continuous chord sounds, the order of arranging the chord phonemes C does not necessarily have to match the guidance voice information, and a predetermined rule may be determined and followed.

  If the chord sound signal SC stored in the storage unit of the chord sound generation unit 13 is one chord phoneme Cr that is a combination of the basic information G0 and the variable information G1 to Gn, the above arranging procedure is unnecessary. is there.

  For the chord phoneme Cr, for example, "Soon it will be line 1 of each station that stops at Ofuna. It's dangerous, so please drop down to the white line and wait." Since it is dangerous, please wait down to the white line. ”Is stored in the storage unit as chord phoneme pieces Cr2 for all combination patterns.

  The voice synthesizer 14 synthesizes the guide voice signal SV generated by the voice generator 12 and the chord sound signal SC generated by the chord sound generator 13 to generate an acoustic signal SM. That is, the acoustic signal SM is a guide voice signal SV that can be heard by the user and a chord sound signal that is not heard by the user and can be picked up by the terminal device MB having a sound pickup function such as a mobile phone or a smartphone. It is a combination of SC and SC.

  As a method of synthesizing the guidance voice signal SV generated by the voice generation unit 12 and the chord sound signal SC generated by the chord sound generation unit 13 in the voice synthesis unit 14, a voice in a frequency range that can be heard by the user is used. The sound signal SM can be synthesized by superimposing the guidance sound signal SV, which is the sound signal, and the chord sound signal SC, which is a sound in a high frequency region that is difficult to hear.

  The broadcast processing unit 2 includes a broadcast control unit 21 and a sound generation unit 22 as shown in FIG. When the audio signal SM to be broadcast is input from the audio synthesizer 14, the broadcast controller 21 outputs the audio signal SM to the corresponding audio generator 22 of the broadcast destination. These voice generating units 22 are speakers that output voice to the target space or facility, and a plurality of voice generating units 22 having the same function may be arranged according to the size and size of the space or facility. It is possible.

  In FIG. 1, it is assumed that there are two tracks for trains going up and down on the platform, and a voice generating unit 22a is installed on the first line side L1 of the platform and a voice generating unit 22b is installed on the second line side L2 of the platform. ing.

  FIG. 2 is an explanatory diagram illustrating the configuration of the acoustic signal SM with respect to the time axis in the case where there are two railroad tracks for the train going up and down on the platform. The acoustic signal SM shows the guide voice signal SV which is an audible signal in the upper stage, and the chord sound signal SC which is a hard-to-audible signal which is a sound hard to hear by a person in the lower stage.

  In FIG. 2A, the acoustic signal SMa for Line 1 is shown when there is a train departing and arriving only on Line 1. The audio signal SMa includes a guidance voice signal SVa composed of voice units Va0 and Va1 to Van and chord phonemes Ca0 and Ca1 to be generated based on the guidance information composed of the basic information G0 and the variable information G1 to Gn. It is composed of a chord sound signal SCa composed of Can.

  For example, basic information G0 "Soon (G1) line (G2) (G3) line. Please go down to the white line.", Variable information G1 "1", variable information G2 "stop at each station" If the type of train and variable information G3 is set to "Ofuna", the corresponding voice units Va0 and Va1 to Van will be combined and "Soon, line 1 will stop at Ofuna. Please go down to the white line." The guide voice signal SVa for line 1 is generated.

  The chord sound signal SCa generated at the same time is a chord sound composed of chord phonemes Ca0 and Ca1 to Can corresponding to the basic information G0 and the variable information G1 to Gn, and is a signal of an extremely short time as compared with the guidance voice signal SVa. Become. Therefore, in order to reliably collect the sound from the terminal device MB, the chord sound signal SCa is combined with the one guidance sound signal SVa a plurality of times.

  In the case of the chord phoneme piece Cr having the pattern corresponding to the basic information G0 and the variable information G1 to Gn, the chord sound signal SCa is only the chord phoneme piece Cr, and the chord sound signal SCa is generated for one guidance voice signal SVa. It will be synthesized so as to be repeated multiple times.

  In addition, for the guidance information composed of the basic information G0 and the variable information G1 to Gn, the Japanese speech units Va0 and Va1 to Van and the English speech units va0 and va1 to van are generated and consecutive. May be generated as one guidance voice signal SVa.

  In FIG. 2B, the acoustic signal SMb for Line 2 is shown when there is a train departing and arriving only on Line 2. For example, basic information G0 "Soon (G1) line (G2) (G3) line. Please go down to the white line.", Variable information G1 is "2", variable information G2 is "express train". For example, if the train type and variable information G3 is "Tokyo", and the corresponding voice units Vb0 and Vb1 to Vbn are combined, "Soon to be the express train bound for Tokyo. Please go to the white line." The guide voice signal SVb of the second line is generated.

  The chord sound signal SCb generated at the same time is a chord sound composed of chord phonemes Cb0 and Cb1 to Cbn corresponding to the basic information G0 and the variable information G1 to Gn, and one guide voice signal as in FIG. 2 (a). The chord sound signal SCb is synthesized so as to be repeated a plurality of times with respect to SVb.

  In FIG. 2 (c), for example, the acoustic signal SMc for the second line is shown when there is a train departing and arriving on both the first and second lines. In such a case, the guidance information corresponding to the guidance voice signal SV that constitutes the acoustic signal SMc and the chord sound signal SC that is repeatedly synthesized is different.

  The guidance voice signal SV broadcasts the guidance voice signal SVb corresponding to the basic information G0 and the variable information G1 to Gn of the guidance information for the second line. The guidance voice signal SVb composed of these voice segments Vb0 and Vb1 to Vbn is the same as the guidance voice signal SVb in FIG. 2B.

  As the chord sound signal SC which is simultaneously created, the chord sound signal SCc including chord phoneme pieces Cc0 and Cc1 to Ccn corresponding to the basic information g0 of the guide information including the 1st and 2nd lines and the variable information g1 to gn is repeatedly broadcast. become.

  For example, the basic information g0 corresponds to the guide information "Soon (g1) line (g2) (g3) line, (g4) line (g5) (g6) line. Please go down to the white line." The chord sound signal SCc composed of the chord phonemes Cc0 and Cc1 to Cc6 and the guidance voice signal SVb are synthesized to generate the acoustic signal SMc.

  In this way, the acoustic signal SM synthesized by the information processing unit 1 is output to the broadcast processing unit 2 and is distributed to the line 1 and the line 2 by the broadcast processing unit 2, and then the sound generating units 22a and 22b. Will be output as voice through.

  Then, regarding the sound signal SM broadcast from the sound generating units 22a and 22b, the guidance sound signal SV is heard at the same time as the chord sound signal SC is heard by the user who is within the range of reaching the sound of the sound signal SM. Sound is collected by the terminal device MB having a sound collecting function, such as a mobile phone or a smartphone owned by the user.

  The terminal device MB has a function of converting the acoustic signal SM from an analog signal to a digital signal, and guide information including the received basic information G0 and variable information G1 to Gn of the chord phoneme pieces C0 and C1 to Cn. Can be converted to. And, it has a function of displaying this guidance information on the screen by characters or the like.

  Similarly, in the case of the chord phoneme Cr having a pattern corresponding to the basic information G0 and the variable information G1 to Gn, it is possible to convert the chord phoneme Cr into the guide information including the basic information G0 and the variable information G1 to Gn corresponding to the chord phoneme Cr. Is.

  Further, instead of the guide information including the basic information G0 and the variable information G1 to Gn to be converted, it is also possible to convert to the related information R0 and R1 to Rn corresponding to each language. That is, the related information R0 and R1 to Rn correspond to the guide information of each language version corresponding to the guide information composed of the basic information G0 and the variable information G1 to Gn.

  In the terminal device MB, the chord sound signal SC is extracted from the picked-up sound signal SM and converted into the chord sound signal SC, that is, the related information R0 and R1 to Rn associated with the chord phoneme pieces C0 and C1 to Cn, respectively. It is displayed on the screen in characters in the language.

  In this way, the user of the terminal device MB listens to the guidance voice on the home, and at the same time, the guidance information including the relevant information R0 and R1 to Rn of the own language, and the basic information G0 and the variable information G1 to Gn. Will be referred to. Therefore, even if the user cannot understand the guidance voice, the user can understand the display content of the terminal device MB because it is in his own language, and thus can understand the content of the guidance information.

  The conversion and display functions of the chord sound signal SC in the terminal device MB may be realized by standard general-purpose functions, or a dedicated application program may be installed in the terminal device MB in advance.

  This application program is compatible with multiple languages. For example, when set to the English version, the English version of the related information R0 and R1 to Rn associated with the chord phonemes C0 and C1 to Cn is displayed. Become. The displayed guide information has the same content except that the language is different.

  When installing the application program, the terminal device MB stores various related information R0 and R1 to Rn associated with various chord phoneme pieces C0 and C1 to Cn in the storage unit.

  In addition, the voice generation unit 12 of the information processing unit 1 and the storage unit of the chord sound generation unit 13 store the related information R0 of each language in association with the basic information G0 and the variable information G1 to Gn or the chord phoneme pieces C0 and C1 to Cn. And R1 to Rn may be stored. With this configuration, the terminal device MB accesses the information processing unit 1 via wireless communication such as WiFi and associates it with the basic information G0 and the variable information G1 to Gn or the chord phonemes C0 and C1 to Cn. The obtained related information R0 and R1 to Rn may be downloaded from the storage unit.

  Further, the related information R0 and R1 to Rn are not limited to character information, and may be image information such as photographs and illustrations of trains departing and arriving. Further, a plurality of types of related information R0 and R1 to Rn can be associated with the chord phoneme pieces C0 and C1 to Cn. For example, it is also possible to display on the terminal device MB together the character information of the trains departing and arriving and the image information of the train.

  Next, the broadcast processing of the information guidance system when trains arrive and depart from the platform going up and down will be described based on the flowchart shown in FIG.

  First, in step S101, the guide information generation unit 11 of the information processing unit 1 determines whether or not a broadcast instruction OD1 regarding train departure / arrival from a train operation management system (not shown) is received. If the broadcast instruction OD1 has not been received, the process returns to step S101 again and enters a standby state in which the loop process is repeated until the broadcast instruction OD1 is received.

  When the broadcast instruction OD1 is received in step S101, the process proceeds to step S102, in which the guide information generation unit 11 generates guide information including basic information G0 and variable information G1 to Gn that is changed depending on the train type and destination. .

  Then, the voice generation unit 12 reads the voice units V0 and V1 to Vn associated with the basic information G0 and the variable information G1 to Gn of the guidance information from the storage unit, performs voice synthesis, and creates the guidance voice signal SV. . On the other hand, the chord sound generation unit 13 reads the chord phoneme pieces C0 and C1 to Cn associated with the basic information G0 and the variable information G1 to Gn of the guidance information from the storage unit and synthesizes the chord sound signal SC.

  Subsequently, in step S103, the voice synthesis unit 14 synthesizes the input guidance voice signal SV and the chord sound signal SC to create an acoustic signal SM1. That is, as shown in FIG. 2A, a guide sound signal SV that can be heard by the user and a chord sound signal SC that can be picked up by the terminal device MB without being heard by the user are combined to produce an acoustic signal. SM1 will be generated.

  When the acoustic signal SM1 is input, the broadcast control unit 21 proceeds to step S104, and after allocating the acoustic signal SM1 to the corresponding sound generation unit 22a or sound generation unit 22b of the broadcast destination, the sound generation unit 22a or sound generation. Broadcasting starts from the section 22b.

  If the acoustic signal SM1 is the acoustic signal SMa for the train on the 1st line, the broadcast control unit 21 is for the audio generating unit 22a, and if the acoustic signal SM1 is the acoustic signal SMb for the train on the 2nd line, it is for the audio generating unit 22b. Then, the broadcasting will start.

  The user of the terminal device MB at the platform of the station can listen to the guidance voice signal SV included in the acoustic signal SM1. On the other hand, the chord sound signal SC is picked up by the terminal device MB. The terminal device MB reads the related information R0 and R1 to Rn associated with the chord phonemes C0 and C1 to Cn forming the chord sound signal SC, and the guide information is displayed on the display in its own language.

  At this time, the chord sound signal SC is a signal of an extremely short time compared with the guide voice signal SV and is repeatedly broadcast. Therefore, at the stage when the user starts listening to the guide voice signal SV, the chord sound signal by the terminal device MB. The sound collection processing of SC is completed. Therefore, when the user starts listening to the guidance voice, the guidance information is displayed in the own language on the display of the terminal device MB.

  Next, in step S105, the information processing section 1 determines whether or not the broadcasting of the acoustic signal SM1 is completed. This determination processing is determined by the presence or absence of a broadcast completion signal transmitted from the broadcast processing unit 2 to the information processing unit 1 when the broadcast is completed.

  When the information processing unit 1 receives the broadcast completion signal from the broadcast processing unit 2, the process returns to step S101 to enter the standby state.

  If the broadcast is not completed, that is, if the broadcast completion signal is not received, the process proceeds to step S106, and a train operation management system (not shown) issues a broadcast instruction OD2 regarding train departure / arrival on another line different from the one being broadcast. It is determined whether it has been received.

  When the broadcast instruction OD2 is not received in step S106, the process returns to step S105, loop processing is performed until the broadcast of the acoustic signal SM1 is completed, and when the broadcast is completed, the process returns to step S101 and shifts to the standby state.

  When it is determined in step S106 that the broadcast instruction OD2 has been received, the guide information generation unit 11 of the information processing unit 1 receives the broadcast instruction OD2 for train departure / arrival on a line different from the acoustic signal SM1 during the broadcast of the acoustic signal SM1. Means that. That is, it indicates that trains arrive and depart on lines 1 and 2 on the platform at the same time.

  FIG. 4 is an explanatory diagram illustrating the configuration of the acoustic signals SM1 and SM2 with respect to the time axis when the broadcasts of the voice generating unit 22a of the 1st line and the voice generating unit 22b of the 2nd line thus partially overlap. Time t0 in FIG. 4 corresponds to step S104 shown in FIG. 3, and time t1 corresponds to the timing when it is determined that there is another broadcast instruction OD2 in step S106 shown in FIG.

  When the broadcast instruction OD2 is received in step S106, the process proceeds to steps S107 and S108, and the information processing section 1 generates the acoustic signal SM2 corresponding to the broadcast instruction OD2. For example, if the acoustic signal SM in FIG. 2A is the acoustic signal SM1 that starts broadcasting in step S104, the acoustic signal SM2 generated in step S108 is similar to the acoustic signal SMc in FIG. 2C. It will be composed.

  That is, the acoustic signal SM2 is a guidance voice signal SVb composed of voice units Vb0 and Vb1 to Vbn corresponding to the guide information for the 2nd line, and chord phoneme units Cc0 and Cc1 corresponding to the guide information including the 1st and 2nd lines. The chord sound signal SCc composed of Ccn is synthesized.

  Then, in step S109, the sound generation unit 22b starts broadcasting the acoustic signal SM2, and as illustrated in FIG. 4, the sound signal SM1 and the sound signal SM2 partially overlap with each other, and the sound generation unit 22a and the sound generation unit 22b. It will be broadcast from 22b.

  It should be noted that the audio signals SM1 and SM2 differ in the type of voice of the guide voice signal SVa and the guide voice signal SVb. For example, the guide voice signal SVa on the first line is a male voice and the guide voice signal on the second line. SVb is said to be a female voice. By doing so, even if the guide sound signals SVa and SVb are simultaneously broadcast from the sound generating units 22a and 22b, respectively, the user can listen to only necessary information without confusion.

  Further, as shown in FIG. 4, at the timing when it is determined that there is another broadcast instruction OD2 in step S106 shown in FIG. 3, the code sound signal SCa of the audio signal SM1 being broadcast is changed from the code sound signal SCc from the sound generation unit 22a. Change to.

  In this processing, when the information processing unit 1 outputs the acoustic signal SM2 to the broadcasting processing unit 2, a broadcasting process is also performed to change the chord sound signal SCa of the acoustic signal SM1 being broadcast to the chord sound signal SCc. This is executed by outputting to the unit 2, and the code sound signal SCa being broadcast can be changed to the code sound signal SCc. The chord sound signals SCc of the voice generating unit 22a and the voice generating unit 22b are broadcast in synchronization from time t1.

  As for the guidance information displayed on the terminal device MB, departure and arrival information of both trains of Lines 1 and 2 will be displayed after time t1. Therefore, the user can refer to the departure / arrival information of both the trains on the 1st and 2nd lines, and can obtain the departure and arrival information that matches at least the destination.

  If the broadcast instruction OD1 corresponding to the first line is received again before the broadcast of the audio signal SM2 shown in FIG. 4 is completed, the above steps S106 to S109 are repeated.

  In addition, in the first embodiment, it is assumed that there are two tracks where trains arrive and depart from the platform of the station, but the configuration and number of platforms and tracks are not limited to this. It can be applied not only to railroads but also to other transportation related facilities such as bus terminals and airport terminals.

  Further, FIG. 5 is an explanatory diagram illustrating a modification of the acoustic signals SM1 and SM2 with respect to the time axis when the broadcasts partially overlap. The audio signal SM1 does not broadcast in the audible frequency range from the broadcast of the guide voice signal SVa to the end time such as the arrival time of the train at the platform at time t2, and is the chord phoneme that is the chord sound signal SCc. Only the pieces Cc0 and Cc1 to Ccn are repeatedly broadcast.

  The sound signal SM in FIG. 5 is a combination of the guide sound signal SV, which is an audible signal for one broadcast, and the chord sound signal SC, which repeats without limitation. Broadcasting is controlled to stop broadcasting by using as a trigger.

  The process of continuously broadcasting only the chord sound signal SC until such a train arrives can also be performed during the single broadcast process of the acoustic signal SM1 of line 1 or the acoustic signal SM2 of line 2. By doing so, even a user who arrives at the platform after broadcasting the audible signal can obtain the guide information via the terminal device MB.

  The trigger signal for stopping the broadcast is input from the train operation management device connected to the information guidance system. The time t2 of the trigger signal may be an appropriate time such as the time when the train, which is the target of the guidance information in the acoustic signal SM, arrives at the platform, the time when the train departs, or the like.

  Alternatively, the synthesized sound signal SM may be generated by setting the silent time of the guidance voice signal SV to a predetermined time, for example, 10 seconds. In such a case, broadcast control for stopping the broadcast is not necessary.

  FIG. 6 is a configuration diagram of the information guidance system according to the second embodiment. In the second embodiment as well, as in the first embodiment, it is assumed that there are two tracks where trains arrive and depart on the up and down platforms of the railway station. Since the information processing unit 1 has the same configuration as that of the first embodiment, its description is omitted.

  The broadcast processing unit 2 is composed of a broadcast control unit 21, a sound generation unit 22, and a departure / arrival display unit 23. The voice generation unit 22a and the departure / arrival display unit 23a are installed on the first line side L1 of the home, and the voice generation unit 22b and the departure / arrival display unit 23b are installed on the second line side L2 of the home.

  The voice generation units 22a and 22b are omnidirectional speakers, and the arrival / arrival display units 23a and 23b are provided with directional speakers, respectively. The directional speakers of the arrival / departure display units 23a and 23b have a smaller output than the omnidirectional speakers of the sound generation units 22a and 22b, and the range in which the user of the station can read the displays of the arrival and departure display units 23a and 23b is approximately broadcast. It has a range.

  The operation when the broadcast processing unit 2 is configured in this way will be described focusing on the part different from the first embodiment. When the guide information generation unit 11 of the information processing unit 1 receives the broadcast instruction OD from the train operation management system (not shown), the broadcast control unit 21 outputs the audio signal SM from the voice synthesis unit 14 as in the first embodiment. It receives and transmits the acoustic signal SM to the voice generating unit 22a or the voice generating unit 22b of the corresponding number line.

  At this time, the acoustic signal SM is not transmitted to the directional speaker of the departure / arrival display unit 23a or the departure / arrival display unit 23b. On the home, the sound signal SM is broadcast only from the voice generating unit 22a or the voice generating unit 22b, and is not broadcast from the directional speakers of the arrival / departure display units 23a and 23b, so that stable sound collection can be performed by the terminal device MB.

  When the guide information generation unit 11 of the information processing unit 1 has not received the broadcast instruction OD from the train operation management system (not shown), that is, in the standby state of step S101 in the flowchart of FIG. 3, based on the prescribed operation information. The guide information generation unit 11 outputs the basic information G0 and variable information G1 to Gn of trains scheduled to arrive and depart to only the chord sound generation unit 13.

  The chord sound generation unit 13 reads the chord phoneme pieces C0 and C1 to Cn associated with the received basic information G0 and variable information G1 to Gn from the storage unit, and synthesizes them to form the chord sound signal SC.

  The voice synthesizer 14 creates the acoustic signal SS only with the chord sound signal SC input from the chord sound generator 13. That is, the acoustic signal SS is composed only of the chord sound signal SC which can be picked up by the terminal device MB without being heard by the user.

  The audio signal SS having no audible signal is output from the voice synthesis unit 14 of the information processing unit 1 to the broadcast control unit 21 of the broadcast processing unit 2. The broadcast control unit 21 recognizes that the acoustic signal SS is composed of only the chord sound signal SC, and transmits the acoustic signal SS only to the corresponding departure / arrival display unit 23a or departure / arrival display unit 23b.

  Since the sound signal SS is not transmitted to the sound generating unit 22a or the sound generating unit 22b, the sound signal SS is not broadcast from the sound generating units 22a and 22b at the station platform. Then, the acoustic signal SS including only the chord sound signal SC is broadcast from the directional speakers provided in the departure / arrival display units 23a and 23b.

  At this time, the basic information G0 and the variable information G1 to Gn of the train scheduled for departure / arrival are displayed in the departure / arrival display unit 23a or the departure / arrival display unit 23b in correspondence with guidance information such as departure / arrival schedule information from a train operation management system (not shown). It is displayed.

  When the user of the terminal device MB is in the vicinity of the departure / arrival display units 23a and 23b, the guide information such as train departure / arrival schedule information displayed on the departure / arrival display unit 23a or the departure / arrival display unit 23b, that is, the basic information G0. And the guide information including the variable information G1 to Gn is visually checked, and the terminal device MB picks up the acoustic signal SS including only the chord sound signal SC.

  In the terminal device MB, the chord sound signal SC is extracted from the picked-up sound signal SS, the chord sound signal SC, that is, the related information R0 and R1 to Rn associated with the chord phoneme pieces C0 and C1 to Cn are read out and sent and received. The guidance information such as the schedule information is displayed on the display of the terminal device MB.

  In this way, the user of the terminal device MB is displayed around the departure / arrival display units 23a and 23b by staying around the departure / arrival display unit 23a or the departure / arrival display unit 23b even when train arrivals / departures are not approaching on the platform. The scheduled train departure / arrival information can be displayed on the terminal device MB in its own language.

  In this way, a person who is in a position where the character strings and sentences displayed on the arrival / departure display unit 23a and the arrival / departure display unit 23b cannot be read, a foreigner, and a hearing-impaired user trains via the terminal device MB. It is possible to acquire guidance information such as departure / arrival schedule information.

  According to the information guidance system of the present invention, the guidance voice signal SV obtained by converting the guidance information into the audible signal and the chord sound signal SC obtained by converting the guidance information into the inaudible signal are combined to generate the acoustic signal SM, By broadcasting the audio signal SM, the user having the terminal device MB can refer to the guidance information displayed on the terminal device MB even if a foreigner who cannot hear the guidance voice or a person with hearing impairment sees the traffic. It is possible to reliably acquire information on the operation of the institution, information on departure and arrival of trains, and the like.

  In addition, even when different audio signals SM1 and SM2 are broadcast for each sound generator 22 on the up and down sides of the platform, the sound signal SM1 that is a combination of the chord sound signals SC including the same up and down guide information, By broadcasting the SM2 from the voice generating unit 22, the user can refer to both the up and down guide information, and can obtain the necessary information.

1 Information processing unit 2 Broadcast processing unit 22, 22a, 22b Sound generation unit 23, 23a, 23b Arrival / departure display unit SC, SCa, SCb, SCc Chord sound signal SM, SM1, SM2, SMa, SMb, SS Sound signal SV, SVa , SVb guidance voice signal

Claims (8)

An information guidance system comprising an information processing unit that generates an acoustic signal and a broadcast processing unit that includes a sound generation unit that broadcasts the acoustic signal,
The information processing unit generates the acoustic signal by synthesizing a guidance voice signal obtained by converting the guidance information into an audible signal and a chord sound signal obtained by converting the guidance information into an inaudible signal.
The information guidance system, wherein the acoustic signal is synthesized by repeating the chord sound signal a plurality of times with respect to one guidance voice signal.   The information guidance system according to claim 1, wherein the sound generating units are arranged at a plurality of locations, and the acoustic signal corresponding to each of the sound generating units is broadcast.   When a second audio signal different from the first audio signal is broadcast by the second audio generator while the first audio signal obtained by combining the first guidance audio signal and the first chord sound signal is being broadcast by the first audio generator. The guide information corresponding to the second chord sound signal of the second acoustic signal that is repeatedly synthesized is different from the guide information corresponding to the second guide voice signal of the second acoustic signal. The information guidance system according to claim 2.   When the second audio generation unit starts broadcasting the second audio signal, the repetitive broadcasting of the first chord sound signal of the first audio signal being broadcast is changed to the repetitive broadcasting of the second chord sound signal. The information guidance system according to claim 3, wherein   4. The guide information corresponding to the second chord sound signal includes guide information corresponding to the first guide voice signal and guide information corresponding to the second guide voice signal. Alternatively, the information guidance system according to claim 4. The acoustic signal is a combination of the guide voice signal that is an audible signal for one broadcast and the chord sound signal that repeats without limitation,
The information guide system according to claim 1, wherein the broadcast processing unit stops the broadcast of the audio signal based on a trigger signal for the audio signal that has started the broadcast.   7. The information guidance system according to claim 1, wherein the guidance information is train departure / arrival information, and the voice generation unit is installed on a platform. The broadcast processing unit includes a departure / arrival display unit for displaying train departure / arrival schedule information,
The departure / arrival display unit has a directional speaker,
The information processing unit converts the scheduled arrival and departure information into a deafness signal, and generates a directional speaker acoustic signal consisting only of repeated chord signals,
The information guidance system according to claim 7, wherein the directional speaker broadcasts the directional speaker acoustic signal in response to a display instruction of the departure and arrival schedule information on the departure and arrival display unit.

Images