JP6504334B2 - Receiving system, receiving apparatus, receiving method and program - Google Patents

Description

  The present invention relates to a receiving system, a receiving device, a receiving method, and a program for receiving a signal transmitted from a satellite.

  A national instantaneous alert system (J-Alert) is known as a system for transmitting and receiving information using a satellite.

  In addition, the use of Quasi-Zenith Satellite System (QZSS) for sending and receiving information is also being considered.

Ministry of Internal Affairs and Communications 2012 edition information communication white paper http://www.soumu.go.jp/johotsusintokei/whitepaper/ja/h24/html/nc253320.html (2014.02.28 search) Quasi-Zenith Satellite System Service http://www.qzs.jp/services/details/details04.html (2014.02.28 search)

  J-Alert mainly provides disaster prevention information to local governments, and the equipment is large-scale, for example, requires a parabolic antenna for reception. Also, when performing audio broadcasting based on the received disaster prevention information, there are problems such as an area where the sound does not reach due to the arrangement of the speakers and an area where the sound can not be heard due to the wind direction.

  On the other hand, QZSS is a system that complements and reinforces GPS (Global Positioning System), which is one of position measurement systems, and can receive signals with a small receiver. However, the receiver is complex and expensive to construct. And since this receiving device is supposed to be used (purchased) by an individual, there is a problem in terms of spread. In addition, since this receiving device does not have means for informing the surrounding people (people at a distance of several meters to several tens of meters), transmission of disaster prevention information etc. at a stage where diffusion does not progress Even if it uses it, its effect is limited.

  The present invention aims to provide a receiving system which solves one or more of the above problems.

Receiving system according to an embodiment of the present invention, GPS (Global Positioning System) signals, GPS complementary signals, and any received signals received reinforcement signal including a signal indicating a voice message to be broadcast from the satellite cluster An antenna unit for outputting a plurality of specific information for specifying information to be output as a voice message included in the reinforcement signal according to the format of the received signal, and the antenna unit specifying in advance as reception designation information And deciphering the received signal received from the deciphering device into a digital signal to detect specific information contained in the received signal based on the reception designating information, and including the specific information contained in the reception designating information Specific information detecting means for discarding no digital signal, and detected specific information designated for reception and included in the reinforcement signal A voice message signal generating means for generating a voice message signal on the basis of the distribution, an audio output unit for outputting the voice message signal sound is received designated be included in the reinforcing signal based on the voice message signal And a receiving terminal group .
A receiving apparatus according to an embodiment of the present invention is an analog type that is a reinforcement signal including a GPS (Global Positioning System) signal broadcasted from a group of artificial satellites, a GPS complementary signal, and a signal indicating any voice message. An antenna unit that receives a satellite signal and outputs a reception signal, and a plurality of pieces of specific information for specifying information to be output as a voice message included in the reinforcement signal according to the format of the reception signal are designated in advance as reception designation information Setting means for deciphering the received signal received from the antenna unit and converting it into a digital signal, detecting specific information contained in the received signal based on the reception designation information, and contained in the reception designation information Specific information detection means for discarding a digital signal not containing specific information; and designated for reception and included in the reinforcement signal Voice message signal generating means for generating a voice message signal based on the detected specific information, and output of the voice message signal voice included in the reinforcement signal based on the voice message signal and designated for reception Audio output means for
The receiving method according to an embodiment of the present invention comprises the steps of: specifying in advance a plurality of specific information for specifying information to be output as a voice message included in a reinforcement signal according to a format of a received signal as reception specification information; Receiving a satellite signal of an analog format, which is a reinforcement signal transmitted from an artificial satellite broadcasting a reinforcement signal including a signal indicating an arbitrary voice message, and outputting the reception signal; and decoding the received signal. Converting the digital signal into a digital signal, detecting specific information contained in the received signal based on the reception designation information, and discarding the digital signal not containing the specific information contained in the reception designation information; Generating a voice message signal based on the detected specific information designated for reception and included in the reinforcement signal Comprising a step, and a step of outputting a voice message signal sound is received designated be included in the reinforcing signal based on the voice message signal.
A program according to an embodiment of the present invention is a step in which a plurality of specific information for specifying information to be output as a voice message included in a reinforcement signal according to the format of a received signal is specified in advance as reception designation information And the satellite signal of the analog format, which is a reinforcement signal transmitted from the artificial satellite that broadcasts a reinforcement signal including a signal indicating an arbitrary voice message, is decoded by the antenna unit, and the output reception signal is decoded. Converting into a digital signal, detecting specific information contained in the received signal based on the reception designation information, and discarding a digital signal not containing the specific information contained in the reception designation information; Generate a voice message signal based on the detected specific information designated for reception and included in the reinforcement signal Steps and, and performing the output of the audio message signal sound is received designated be included in the reinforcing signal based on the voice message signal to the execution.

  It is possible to inexpensively obtain a receiving system that enables voice notification in a relatively small area unit.

It is a schematic block diagram of the satellite communication system containing the receiving system of this invention. It is a block diagram showing composition of a receiving system concerning a 1st embodiment of the present invention. It is a flowchart for demonstrating the operation | movement of the receiving system of FIG. It is a figure for demonstrating the management table which manages the reception designation information set to the receiving system of FIG. It is an enlarged view of the management table regarding the message type contained in FIG. It is a flowchart for demonstrating the detailed operation | movement of the receiving part contained in the receiving system of FIG. 2, and a control part. It is a block diagram which shows the structure of the receiving system which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the receiving system which concerns on the 3rd Embodiment of this invention. It is a flowchart for demonstrating the operation | movement of the receiving system which concerns on other embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a schematic configuration of a satellite communication system including a receiving system 100 according to a first embodiment of the present invention.

  The satellite communication system shown relays the signal transmitted from the ground station 200 by the satellite station (artificial satellite) 300 and broadcasts it on the ground (here, a range that covers the whole of Japan is assumed). Do. The receiving system 100 includes a received signal voice conversion transmitter 10 and an audio output unit 20, directly receives a signal (satellite signal) transmitted from the satellite station 300, and based on information included in the received satellite signal. Implement audio output.

  FIG. 2 is a diagram showing a schematic configuration when the receiving system 100 is configured as the receiving device 50 which is a user terminal. The receiving system 100 includes a control unit setting unit 30 in addition to the received signal voice conversion transmitter 10 and the voice output unit 20.

  The received signal speech conversion transmitter 10 includes one or more of an antenna unit 11 for receiving satellite signals, a reception unit 12 for processing the received satellite signals, and a control unit 13 for controlling the entire received signal speech conversion transmitter 10. And a transmitter 15 for transmitting a voice (message) signal based on the voice data. The audio output unit 20 also includes one or more loudspeakers 21.

  Next, the operation of the reception system 100 of FIG. 2 will be described with reference to the flowchart of FIG. Here, it is assumed that necessary information is set in advance from the control unit setting unit 30 functioning as a setting unit. The information set using the control unit setting unit 30 and the audio data stored in the audio data storage unit 14 will be described later.

  First, the antenna unit 11 receives an analog satellite signal and transmits the received signal to the receiving unit 12 (step S301). At this time, the antenna unit 11 functions as a receiving unit.

  The receiving unit 12 performs reception processing on the received signal received from the antenna unit 11, decodes the signal, and converts the signal into a digital signal (step S302).

  The control unit 13 confirms whether or not the received digital signal contains specific information in accordance with the setting information from the control unit setting unit 30 (step S303). At this time, the receiving unit 12 and the control unit 13 function as specific information detecting means.

  When the digital signal includes specific information (YES in step S303), control unit 13 extracts audio data associated with the specific information from audio data storage unit 14 and transmits the audio data to transmission unit 15 (step S305). At this time, the control unit 13 functions as a part of the voice message signal generation unit. Also, the audio data storage unit 14 functions as a storage unit, and the control unit 13 functions as a reading unit.

  On the other hand, if the digital signal does not contain predetermined information (NO in step S303), the control unit 13 discards the digital signal and ends the process (step S304).

  When the transmitting unit 15 receives the audio data from the control unit 13, the transmitting unit 15 transmits the received audio data as an audio signal to the loudspeaker 21 (step S306). As a result, output by voice is performed from the loudspeaker 21 (step S307). At this time, the transmission unit 15 functions as a part of the voice message signal generation unit, and the loudspeaker 21 functions as a voice output unit.

  Next, the information set from the control unit setting unit 30 and the sound data stored in the sound data storage unit 14 will be described.

  In this system, there are a plurality of satellites, each satellite can transmit a satellite signal of a plurality of signal types, and the satellite signal contains information indicating which of a plurality of message types it is. In addition, it shall be possible to include information specifying the content and classification. Information specifying these message types, contents and classifications corresponds to specific information.

  The control setting unit 30 sets in the control unit 13 reception designation information which specifies which satellite from which satellite signal is to be received, which type of signal is to be received, and what type of message is to be voice-outputted . At this time, it is possible to specify the content and classification of the message, but it is not always necessary. As the reception designation information, a number, an identification code or the like assigned to each message type or the like is used.

  A plurality of artificial satellites are assigned different PRN numbers (Pseudo Random Noise numbers). The satellite numbers can be distinguished by this number. Taking QZSS as an example, L1C / A, L1C, L1-SAIF (L1S), L2C, L5, etc. are defined as signal types, and each signal type plays a role such as positioning function or reinforcement function. A signal type that can be used to transmit disaster prevention information and the like is a signal with a reinforcement function, and in QZSS, it is L1-SAIF. Also, an ID is assigned to the message type.

  The reception designation information includes a code representing the PRN number, the signal type, and the message type described above. Reception designation information (setting information) is managed in association with a management table that manages voice data. The reception designation information is stored in the voice data storage unit 14 together with the management table.

  Next, a management table for managing voice data will be described. FIG. 4 shows an example of a management table for managing PRN numbers, signal types and message types in a target satellite such as QZSS or GPS.

  In FIG. 4, an audio data table 1 shown on the left side is a table showing the relationship between PRN numbers and artificial satellites. The voice data table 2 shown at the center is a table showing the relationship between the signal type and the message type. Further, the voice data table 3 shown on the right side is a table showing the relationship between the message type and the content thereof.

  An example of the details of the voice data table 3 is shown in FIG. As shown in FIG. 5, voice data names are associated with message contents and classifications for each message type. The voice data is associated with the voice data name, and is stored in the voice data storage unit 14 separately from the management table. However, the voice data itself may be managed by the voice data table 3 instead of the voice data name.

  Based on the reception designation information set by the control unit setting unit 30 and the management table, the control unit 13 can extract from the sound data storage unit 14 the sound data specified by the information included in the reception signal. The operation will be described. Here, as an example, the case where the emergency information message (message type fff) is transmitted by the reinforcement signal from the satellite 1 (PRN number xxx) transmitting the reinforcement signal will be described. In this example, the PRN number xxx, the signal type bbb, and the message type fff are preset from the control unit setting unit 30 as reception designation information.

  The control unit 13 first confirms that the PRN number (in this case, xxx) obtained from the reception signal matches the PRN number included in the reception designation information. Then, the control unit 13 refers to the audio data signal table 1 and confirms that the satellite system of the PRN number (in this case, xxx) set through the control unit setting unit 30 is the satellite 1.

  Next, the control unit 13 confirms that the signal type (in this case, bbb) included in the received signal matches the signal type included in the reception setting information. Then, the control unit 13 refers to the voice data table 2 of the satellite 1 and confirms that the message type of the set signal type (in this case, bbb) is reinforcement. Since the satellite system and message type of the set reception designation information are specified by these processes, the control unit 13 can specify the voice data table 3 related to the reinforcement message of the satellite 1.

  Furthermore, the control unit 13 confirms that the message type (in this case, fff) included in the received signal matches the message type included in the reception designation information. Then, the control unit 13 confirms that the voice data specified by the message type fff is an emergency information message.

  Thereafter, the control unit 13 repeats the same operation to confirm the content and the classification of the message. The voice signal table 3 stores a plurality of voice data names corresponding to contents and classifications included in the message type fff. Therefore, the control unit 13 can extract an audio data name designated by the message type fff from the audio signal table 3 based on the confirmation result, and can further extract corresponding audio data.

  In the above example, although the setting of the reception designation information is not performed regarding the content and the classification of the message, it is also possible to set the reception designation information for these items. By making such settings, it is possible to extract voice data corresponding to a signal transmitted to a specific area and not to extract audio data corresponding to a signal transmitted to another area. It will be possible.

  Further, each table and audio data stored in the audio data storage unit 14 can be manipulated (created, changed, edited) from the control unit setting unit 30. Thereby, it is possible to flexibly cope with the change of the format of the satellite signal, the change of the audio data, and the like.

  Next, operations of the receiving unit 12 and the control unit 13 (steps S302 to S305 in FIG. 3) will be described in more detail with reference to FIG. 6 in addition to FIGS.

  The receiving unit 12 decodes the satellite signal received by the antenna unit 11 (step S601), and transmits the signal to the control unit 13.

  The control unit 13 checks whether the received signal (digital signal) includes information representing the PRN number set by the control unit setting unit 30 (step S602). If the received signal includes information representing the set PRN number (YES in step S603), it is checked whether the received signal further includes information representing the signal type set in control unit setting unit 30 (step S604). If the received signal does not include the information indicating the set PRN number (NO in step S603), and if the information indicating the set signal type is not included (NO in step S604), control unit 13 receives The signal is discarded (step S605).

  If the received signal includes information representing the set signal type (YES in step S604), control unit 13 investigates whether the received signal includes information representing the set message type (step S606). If the received signal includes information indicating the set message type (YES in step S606), control unit 13 takes out the signal set in control unit setting unit 30 (step S607). When the received signal does not include the information indicating the set message type (NO in step S606), the control unit 13 discards the received signal (step S605).

  By the above process, the decoding of the reception signal corresponding to the reception designation information set by the control unit setting unit 30 is completed.

  Next, the control unit 13 extracts the decoded signal (PRN number, signal type, message type) from the received signal (step S607). Then, based on the extracted signal, the audio data table 1, 2, and 3 of the audio data storage unit 14 are referred to, and the audio data table includes the audio data name corresponding to the decoded signal (designated) It is checked if there is any (step S608). If the voice data table includes a voice data name corresponding to the decoded signal (YES in step S609), control unit 13 extracts voice data corresponding to the voice data name from voice data storage unit 14 (step S610).

  As described above, the audio data corresponding to the reception designation information set from the control setting unit 30 can be transmitted to the audio output unit 20 as an audio signal.

  According to the present embodiment, only the signal including the predetermined information can be selected to be subjected to reception processing, so that the configuration can be simplified and the manufacturing cost can be reduced. Further, by configuring so as not to perform information processing other than specific information, predetermined information can be promptly detected even immediately after activation. Furthermore, since the audio output unit 20 is provided, information can be transmitted to the surroundings by audio.

  Next, a second embodiment of the present invention will be described in detail with reference to FIG.

  In the first embodiment, an example in which the audio output unit 20 is built in the housing of the receiving device 50 has been described, but in the receiving system 101 according to the present embodiment, the audio output unit 20-1 is a receiving device. It is located outside the 50 enclosures. And the in-house broadcast equipment 70 is provided between the transmission part 15 and the audio | voice output part 20-1. At this time, the in-house broadcast facility 70 and the audio output unit 20-1 function as audio output means. The in-house broadcast facility 70 includes a receiver 71 and a modulator 72, and the receiver 71 is connected to the transmitter 15 by wire.

  According to the present embodiment, audio broadcasting to a place away from the receiving device 50 is possible. For example, sound broadcasting (in-hall broadcasting, etc.) to facilities such as buildings that can not receive satellite signals, underground facilities, ships, etc., and sound broadcasting around a mountain hut, etc., are possible.

  Further, as in the receiving system 102 according to the third embodiment shown in FIG. 8, the transmitting unit 15 is a wireless transmitting unit, and the receiving unit 81 and the modulation are provided between the transmitting unit 15 and the audio broadcasting unit 20-2. An audio signal receiving unit 80 including the unit 82 may be provided. In this case, the audio signal receiving unit 80 and the audio output unit 20-2 function as an audio output unit. Unlike the example of FIG. 7, the receiving unit 81 is wirelessly connected to the transmitting unit 15.

  Also in the third embodiment, as in the second embodiment, audio broadcasting to the inside of a facility or the like becomes possible. In addition, as a smaller example, it is also possible to use a music player, a portable wireless device or the like as the audio signal receiver 80.

  Furthermore, as another embodiment, while the audio output unit 20 is built in the receiving apparatus, as shown in FIG. 7 and FIG. 8, it is also connected to the audio output units 20-1 and 20-2 provided outside. It is possible to make it possible. In that case, it is necessary to provide a switch or the like for switching whether to use the built-in voice output unit 20 or to use the externally provided voice output units 20-1 and 20-1. The switch setting of the switch can be performed by the control unit setting unit 30.

  Alternatively, as another embodiment, whether to incorporate the audio output unit 20 may be set as an option. In that case, the receiving system operates according to the flowchart shown in FIG. That is, the control unit 13 determines whether the audio data transmitted from the transmission unit 15 is to be transmitted to the loudspeaker 21 or to the reception unit 71 or 81 (step S901), and is transmitted to one or both of them. .

  When voice data is transmitted to the voice output unit 20-1 or 20-2 provided outside, the voice data is received by the receiving unit 71 or 81 (step S902) and demodulated by the demodulation unit 72 or 82. Then, the voice is outputted from the loudspeaker 21 (steps S903 and S308).

  As mentioned above, although embodiment of this invention was described in detail, this invention is not limited to the said embodiment, A various change * deformation | transformation are possible.

10, 10-1 Received signal voice conversion transmitter 11 Antenna unit 12 Reception unit 13 Control unit 14 Audio data storage unit 15 Transmission unit 20, 20-1, 20-2 Audio output unit 21 Loudspeaker 30 Control unit setting unit 50 Reception Device 70 In-house broadcasting equipment 71 Reception unit 72 Modulation unit 80 Audio signal reception unit 81 Reception unit 82 Modulation unit 100, 101, 102 Reception system 200 Ground station 300 Satellite station

Claims (20)

An antenna unit that receives an analog satellite signal, which is a reinforcement signal including a GPS (Global Positioning System) signal broadcasted from a group of satellites, a GPS complementary signal, and a signal indicating an arbitrary voice message, and outputs a received signal When,
Setting means for specifying in advance a plurality of pieces of specific information for specifying information to be output as a voice message included in the reinforcement signal in accordance with the format of the received signal;
The reception signal received from the antenna unit is deciphered and converted into a digital signal, and specific information included in the reception signal is detected based on the reception designation information, and the specific information included in the reception designation information is Specific information detection means for discarding digital signals not included;
Voice message signal generation means for generating a voice message signal on the basis of the detected specific information specified to be received and included in the reinforcement signal;
Voice output means for outputting a voice message signal voice included in the reinforcement signal and designated for reception based on the voice message signal;
A receiving system comprising a receiving terminal group comprising: The voice message signal generation means
Storage means for storing voice data in association with each of the plurality of specific information;
Reading means for reading out the voice data associated with the specific information using the plurality of specific information included in the reception designation information as a search key from the storage means, and outputting the voice data as the voice message signal;
The reception system according to claim 1, further comprising: The reception designation information is specific information that specifies a voice message output from the voice output unit.
The PRN number (Pseudo Random Noise number) assigned to the satellite transmitting the specified reinforcement signal, and
A signal type that identifies the specified reinforcement signal, and
Message types to be read from specified satellite signals,
Information specifying message content and classification for each message type read out from the specified satellite signal, and
Is set by the setting means,
The reception system according to claim 1 or 2, characterized in that:   A receiver housing is connected to the antenna unit and accommodates the specific information detection unit and the voice message signal generation unit, and the voice output unit is provided outside the receiver housing. The reception system according to claim 1, 2 or 3, characterized in that   5. The receiving system according to claim 4, further comprising wired connection means for wired connection between the voice message signal generation means and the voice output means.   5. A receiving system according to claim 4, further comprising a wireless connection means for wirelessly connecting between said voice message signal generation means and said voice output means. An antenna unit that receives an analog satellite signal, which is a reinforcement signal including a GPS (Global Positioning System) signal broadcasted from a group of satellites, a GPS complementary signal, and a signal indicating an arbitrary voice message, and outputs a received signal When,
Setting means for specifying in advance a plurality of pieces of specific information for specifying information to be output as a voice message included in the reinforcement signal in accordance with the format of the received signal;
The reception signal received from the antenna unit is deciphered and converted into a digital signal, and specific information included in the reception signal is detected based on the reception designation information, and the specific information included in the reception designation information is Specific information detection means for discarding digital signals not included;
Voice message signal generation means for generating a voice message signal on the basis of the detected specific information specified to be received and included in the reinforcement signal;
Voice output means for outputting a voice message signal voice included in the reinforcement signal and designated for reception based on the voice message signal;
A receiver in one case. The voice message signal generation means
Storage means for storing voice data in association with each of the plurality of specific information;
Reading means for reading out the voice data associated with the specific information using the plurality of specific information included in the reception designation information as a search key from the storage means, and outputting the voice data as the voice message signal;
The receiver according to claim 7, comprising: The reception designation information is specific information that specifies a voice message output from the voice output unit.
The PRN number (Pseudo Random Noise number) assigned to the satellite transmitting the specified reinforcement signal, and
A signal type that identifies the specified reinforcement signal, and
Message types to be read from specified satellite signals,
Information specifying message content and classification for each message type read out from the specified satellite signal, and
Is set by the setting means,
The receiver according to claim 7 or 8, characterized in that:   10. The receiving apparatus according to claim 7, further comprising transmitting means for transmitting the voice message signal to the outside, instead of the voice output means.   The receiving apparatus according to claim 10, wherein the transmitting means is connected to an external connection terminal.   The receiver according to claim 10, wherein the transmission means includes a wireless transmission unit. Designating in advance a plurality of pieces of specific information for specifying information to be output as a voice message included in the reinforcement signal according to the format of the received signal, as reception designation information;
Receiving a satellite signal of an analog format which is a reinforcement signal broadcasted from an artificial satellite that outputs a reinforcement signal including a signal indicating an arbitrary voice message, and outputting the reception signal;
The received signal received is deciphered and converted into a digital signal, and specific information contained in the received signal is detected based on the reception designation information, and the specific information contained in the reception designation information is included. Discarding the digital signal, and
Generating a voice message signal based on the detected specific information designated for reception and included in said reinforcement signal;
Outputting a voice message signal voice included in the reinforcement signal based on the voice message signal and designated for reception;
Receive method including.   In the step of generating the voice message signal, the storage means is searched using the specific information contained in both the received signal and the reception designation information as a search key, and voice data associated with the specific information is stored. The receiving method according to claim 13, further comprising the step of reading out from the storage means and outputting it as the voice message signal. The reception designation information is specific information that specifies a voice message to be output in the step of outputting the voice message signal voice .
The PRN number (Pseudo Random Noise number) assigned to the satellite transmitting the specified reinforcement signal, and
A signal type that identifies the specified reinforcement signal, and
Message types to be read from specified satellite signals,
Information specifying message content and classification for each message type read out from the specified satellite signal, and
Is set,
The reception method according to claim 13 or 14, characterized in that: 16. The receiving method according to claim 13, wherein, instead of the step of outputting the voice message signal voice, the step of transmitting the voice message signal to the outside is included. On the computer
Designating in advance a plurality of pieces of specific information for specifying information to be output as a voice message included in the reinforcement signal according to the format of the received signal, as reception designation information;
The antenna unit receives an analog type satellite signal which is a reinforcement signal broadcasted from an artificial satellite that outputs a reinforcement signal including a signal indicating an arbitrary voice message, and decodes the output reception signal to obtain a digital signal. Converting specific information contained in the reception signal based on the reception designation information, and discarding a digital signal not containing the specific information contained in the reception designation information;
Generating a voice message signal based on the detected specific information designated for reception and included in said reinforcement signal;
Outputting a voice message signal voice included in the reinforcement signal based on the voice message signal and designated for reception;
A program characterized by causing   In the computer, as the step of generating the voice message signal, the storage means is searched using the specific information contained in both the received signal and the reception designation information as a search key, and is associated with the specific information. The program according to claim 17, characterized in that the step of reading out the voice data from the storage means and outputting the voice data as the voice message signal is executed. The reception designation information is specific information that specifies a voice message to be output in the step of outputting the voice message signal voice .
The PRN number (Pseudo Random Noise number) assigned to the satellite transmitting the specified reinforcement signal, and
A signal type that identifies the specified reinforcement signal, and
Message types to be read from specified satellite signals,
Information specifying message content and classification for each message type read out from the specified satellite signal, and
Is set,
The program according to claim 17 or 18, characterized in that. The computer, instead of performing the output of the voice message signal sound, the program according to claim 17, 18 or 19, characterized in that to perform the step of transmitting the voice message signal to the outside.

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