JP2022176350A - wireless communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless communication device that prevents voice communication of a user of a radio device receiving voice from becoming difficult to hear due to voice reproduced by another radio device near the radio device receiving the voice communication.

SOLUTION: A wireless communication device (1) according to the present invention includes: a transmitting unit (40) that transmits a voice signal; a receiving unit (10) that receives a call permission request for voice communication; an acquisition unit (20) that acquires distance between radio devices; and a determination unit (30) that, when the receiving unit receives the call permission request from a third radio device to a second radio device while the transmitting unit is transmitting the voice signal to a first radio device, determines contents of volume control for the second radio device based on the distance between the first radio device and the second video device, acquired by the acquisition unit (20). The transmitting unit (40) transmits a signal containing the contents determined by the determination unit (30) to the second radio device.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a wireless communication device, and more particularly to a wireless communication device that suppresses the volume of audio output from a wireless device.

Techniques for suppressing calls by wireless devices are known. Patent Literature 1 discloses a technique for notifying the originating mobile station that incoming calls by voice are not permitted when the area in which the called mobile station is located is a voice incoming call prohibited area.

JP-A-10-234082

When a radio device is receiving and playing voice communication, if another radio device near the receiving radio device newly receives and plays another voice communication, it will be played on the other radio device. It may occur that the picked-up voice obscures the receiving radio user's voice communication. In Patent Document 1, although it is possible to control a call to a mobile station located in a preset voice call additional area, there is a problem that control cannot be performed based on a wireless device that is receiving voice communication. be.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems. To provide a wireless communication device that prevents difficulty in hearing voice communication of a user of a mobile phone.

Accordingly, the present invention provides a transmission unit that transmits a voice signal, a reception unit that receives a call permission request for voice communication, an acquisition unit that acquires a distance between wireless devices, and a wireless device in which the transmission unit is a first wireless device. When the receiving unit receives a call permission request from the third wireless device to the second wireless device while transmitting the audio signal to the first wireless device acquired by the acquiring unit and a determining unit that determines content of volume control for the second wireless device based on the distance from the second wireless device, wherein the transmitting unit transmits a signal including content determined by the determining unit to the second wireless device A wireless communication device characterized by transmitting to two wireless devices.

Further, the present invention includes transmitting a voice signal, receiving a call permission request for voice communication, obtaining a distance between wireless devices, and transmitting a voice signal to a first wireless device. when receiving a call authorization request from the third radio to the second radio during the period, the second radio based on the distance between the first radio and the second radio and transmitting a signal including the determined content to the second radio.

According to the present invention, it is possible to prevent difficulty in hearing the voice communication of the user of the radio receiving the voice due to the voice reproduced in advance by another radio near the radio receiving the voice communication. A wireless communication device can be provided.

1 is a schematic diagram showing a configuration example of a radio system according to a first embodiment; FIG. 1 is a block diagram showing a configuration example of a wireless communication device according to a first exemplary embodiment; FIG. 4 is a flowchart showing the operation of the wireless communication device 1; 2 is a diagram for explaining the operation of the radio system according to the first embodiment; FIG. 4 is a sequence diagram showing the flow of processing in the wireless system according to the first embodiment; FIG. FIG. 10 is a diagram for explaining the operation of the radio system according to the second embodiment; FIG. FIG. 11 is a sequence diagram showing the flow of processing of the radio system according to the second embodiment;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, the same reference numerals are given to the same or corresponding elements, and redundant description will be omitted as necessary for clarity of description.

[Embodiment 1]
First, the configuration of the wireless system 1SY according to the first embodiment will be described using the schematic diagram of FIG. As shown in FIG. 1, the wireless system 1SY includes a wireless communication device 1, a wireless device A100, a wireless device B200, a wireless device C101, a wireless device D102, a wireless device E105, and a storage unit 500. ing. The radio system 1SY is, for example, a commercial radio system, but is not limited to this. The wireless system 1SY may be, for example, a wireless communication system using a mobile phone line or the like.

The wireless communication device 1 is a device capable of performing wireless communication with each of the wireless device A100, the wireless device B200, the wireless device C101, the wireless device D102, and the wireless device E105. That is, the wireless communication device 1, the wireless device A100, the wireless device B200, the wireless device C101, the wireless device D102, and the wireless device E105 are connected by wireless communication. The wireless communication device 1 is a device capable of controlling each wireless device, relaying voice communication received from a certain wireless device, and transmitting the voice communication to another wireless device. The wireless communication device 1 is, for example, a base station, a repeater, or the like.

The wireless device A100, the wireless device B200, the wireless device C101, the wireless device D102, and the wireless device E105 are devices capable of performing wireless communication via the wireless communication device 1. FIG. The radio A100, the radio B200, the radio C101, the radio D102, and the radio E105 are assigned Unit IDs (hereinafter referred to as UIDs), which are unique identification numbers for identifying themselves. The UIDs of the radio A100, the radio B200, the radio C101, the radio D102, and the radio E105 are assumed to be 100_UI, 200_UI, 101_UI, 102_UI, and 105_UI, respectively. Each wireless device has means for detecting its own position. The means for detecting the position of the own machine measures the position of the own machine using signals from satellites, for example, but is not limited to this. The means for detecting the position of the own machine may be configured by any known position detection technology. Each wireless device transmits the UID and its own location information to the wireless communication device 1 .

The radio C101 is referred to as the first radio 101, the radio D102 is referred to as the second radio 102, the radio A100 is referred to as the fourth radio 100, and the radio B200 is referred to as the third radio. 200 and radio E 105 are also referred to as fifth radio 105 .

The storage unit 500 is a storage medium that can be accessed by the wireless communication device 1 . Here, a state in which the storage unit 500 is connected to the wireless communication device 1 will be described. may Further, the storage unit 500 associates the UID of the wireless device that performs wireless communication with the wireless communication device 1 and the position information, and stores them in the storage table. In addition, the storage unit 500 stores the UID of the called wireless device that is transmitting voice communication in another storage table.

Next, the configuration of the wireless communication device 1 according to the first embodiment will be described using the block diagram of FIG. The wireless communication device 1 according to the first embodiment includes a receiving unit 10, an acquiring unit 20, a determining unit 30, and a transmitting unit 40, and is connected to an external storage unit 500.

The receiving unit 10 receives the UID and position information from each wireless device. The receiving unit 10 then outputs the received UID and position information to the storage unit 500 . The receiving unit 10 also receives a voice communication call authorization request signal including the UID of the called wireless device and a voice communication call end notification signal from the calling wireless device. Then, the receiving unit 10 outputs the received voice communication call authorization request signal and voice communication call end notification signal to the determination unit 30 . Furthermore, the receiving unit 10 receives voice communication from the wireless device of the calling source, and outputs the received voice communication to the transmitting unit 40 .

The acquisition unit 20 acquires the position information of all wireless devices connected to the wireless communication device 1 by wireless communication from the storage unit 500, and calculates the distances between the plurality of wireless devices from the acquired position information of the wireless devices. . For example, the acquisition unit 20 calculates distances between a plurality of wireless devices by executing a program by a CPU (Central Processing Unit) or the like provided therein, and outputs the calculated distance information to the determination unit 30. .

The determination unit 30 confirms the information of the called party that is transmitting the voice communication in the storage unit 500, and if the information of the called party is stored, acquires the UID of the wireless device of the called party. . Further, the determination unit 30 acquires a voice communication call permission request signal including the UID of the wireless device to be called from the reception unit 10 . Further, the determination unit 30 determines whether the acquisition unit 20 makes a voice communication call based on the acquired UID of the callee wireless device that is transmitting voice communication and the acquired UID of the callee of the voice communication call permission request. Receive distance information between the called radio of the authorization request and the called radio that has previously transmitted voice communication. Further, the determination unit 30 determines the content of volume control in response to the voice communication call permission request and whether or not to permit the call, based on whether the received distance is within a predetermined distance stored therein. judgment is made.

Specifically, when receiving the voice communication call permission request signal from the receiver 10, the determination unit 30 determines whether the wireless device of the call destination of the voice communication call permission request and the call destination that is transmitting voice communication in advance. Based on the distance information between the wireless device and the predetermined distance stored inside, the wireless device of the calling destination of the voice communication call permission request and the wireless device of the calling destination that is transmitting voice communication in advance If the distance between the two is within a predetermined distance, it is determined that volume control is to be performed for the wireless device of the call destination of the voice communication call authorization request, and the wireless device of the call source of the voice communication call authorization request determines that the outgoing call is permitted. If the distance is not within the predetermined distance, it is determined that the volume of the called radio device of the voice communication call permission request is not controlled, and the UID of the called radio device that is transmitting the voice communication. , the UID of the wireless device that is the callee of the voice communication call authorization request is stored in the storage unit 500, and it is determined that the call is permitted to the wireless device that is the caller of the voice communication call authorization request. . Then, the determination unit 30 outputs, as determination results for the voice communication call permission request, a determination to control the volume of the wireless device of the callee and a determination to permit the call to the wireless device of the caller. 40. For example, the processing of the determination unit 30 can be realized by executing a program by an internal CPU or the like.

The transmission unit 40 receives the determination result from the determination unit 30 . Then, according to the determination result, the transmitting unit 40 sends a signal including the details of the determined volume control to the wireless device of the call destination of the voice communication call permission request, that is, a volume level control notification for controlling the volume of voice reproduction. A signal containing a signal is transmitted, and a signal containing determined content, that is, a signal containing call authorization is transmitted to the wireless device that originated the voice communication call authorization request. Further, the transmitting unit 40 relays the voice communication of the calling radio device received from the receiving unit 10, and transmits the voice communication to the called radio device.

By providing the above-described configuration, the wireless communication device 1 newly performs voice communication with respect to other wireless devices that are within a predetermined distance from the wireless device that is the transmission destination. When transmitting another voice communication, the volume of the voice reproduced in the other voice communication can be controlled. As a result, it is possible to reproduce the voice of another wireless device without disturbing the user of the wireless device performing voice communication from listening to the voice communication.

Here, the operation of the wireless communication device 1 will be described with reference to FIG.

When the receiving unit 10 receives the voice communication call authorization request signal, the voice communication call authorization request signal, the UID of the calling radio that originated the voice communication call authorization request signal, and the UID of the called radio UID is sent to the determination unit 30 (step S10).

The determination unit 30 confirms whether or not there is a wireless device transmitting voice communication to the storage unit 500 via the acquisition unit 20 (step S11).

In step S11, if there is no wireless device that is transmitting voice communication (No), the determination unit 30 stores the UID of the wireless device that is the call destination of the voice communication call permission request in the storage unit 500 (step S12).

The UID of the wireless device to which the voice communication call permission request is called is stored in the storage unit 500, and the determination unit 30 sends the voice communication call to the wireless device that has issued the voice communication call permission request from the transmission unit 40. A permission signal is transmitted (step S13). Thereby, voice communication is started.

In step S11, if there is a wireless device that is transmitting voice communication (Yes), the determination unit 30 sends the UID and voice of the wireless device that is the calling party that is transmitting voice communication from the storage unit 500 to the acquiring unit 20. Based on the UID of the wireless device to which the communication call is to be made, the location information of each wireless device is acquired, and the distance between the wireless devices is calculated based on the acquired location information of each wireless device. (step S14).

The determination unit 30 compares the distance calculated by the acquisition unit 20 with a predetermined distance stored in the determination unit 30, and determines whether the distance calculated by the acquisition unit 20 is within the predetermined distance (step S15).

In step S15, if the distance calculated by the acquisition unit 20 is not within the predetermined distance (No), the determination unit 30 rewrites the memory of the storage unit 500 with the UID of the wireless device to which the voice communication call permission request is made ( step S12). Further, the determining unit 30 causes the transmitting unit 40 to transmit a voice communication call authorization signal to the wireless device that has issued the voice communication call authorization request (step S13).

In step S15, if the distance calculated by the acquisition unit 20 is within the predetermined distance (Yes), the determination unit 30 controls the volume level of the wireless device to which the voice communication call permission request is sent to the transmission unit 40. A notification signal is transmitted, and the volume of the wireless device to which the voice communication call authorization request is called is lowered to a predetermined level. (Step S16) Furthermore, the determination unit 30 causes the wireless device that has issued the voice communication call permission request to the transmission unit 40 to transmit a voice communication call permission signal (step S17).

Next, the operation of the first embodiment will be described in detail with reference to FIGS. 4 and 5. FIG. 4 and 5, the same processing is executed with the same step numbers.

In the first embodiment, the fourth wireless device 100 performs voice communication with the first wireless device 101 as the calling destination via the wireless communication device 1, and the third wireless device 200 performs voice communication with the second wireless device 101. A case where a voice communication call permission request is made with the wireless device 102 as the call destination will be described.

Each wireless device periodically acquires its own location information when the power is turned on, and transmits the acquired location information and a UID identifying itself to the wireless communication device 1 (step S101). Note that the position information is latitude/longitude information here.

Upon receiving the location information and the UID from each wireless device, the reception unit 10 of the wireless communication device 1 outputs the received location information and the UID to the storage unit 500 . Then, the storage unit 500 associates the location information and the UID of each wireless device and stores them in the table 501 (step S102). Note that the table 501 of the storage unit 500 is a table that associates and stores the UID of each wireless device and the latest position information. Also, the table 501 is periodically rewritten with the latest information.

First, in order to perform voice communication with the first radio 101, the user of the fourth radio 100 inputs the UID (101_UI) of the first radio 101, and then presses a PTT (Push to Talk) button (not shown). Press The voice communication referred to here is, for example, individual voice communication. When the PTT button is pressed, the fourth wireless device 100 transmits to the wireless communication device 1 a voice communication call permission request signal including the UID (101_UI) of the first wireless device 101, which is the call destination. The transmitted voice communication call authorization request signal containing the UID (101_UI) of the first wireless device 101 to be called is received by the receiver 10 of the wireless communication device 1 . Then, the received voice communication call permission request including the UID (101_UI) of the first wireless device 101 to be called is output to the determination unit 30 (step S103).

Next, the determination unit 30 of the wireless communication device 1 confirms whether or not the UID of the called wireless device that is transmitting voice communication via the acquisition unit 20 is stored in the table 502 of the storage unit 500. do. At this stage, since there is no wireless device that is transmitting voice communication, table 502 of storage unit 500 does not store the UID of the called wireless device that is transmitting voice communication. As a result, the determination unit 30 of the wireless communication device 1 determines that there is no wireless device that is transmitting voice communication. (Step S104).

Next, the determination unit 30 of the wireless communication device 1 stores the UID (101_UI) of the first wireless device 101 included in the voice communication call permission request input in step S103 in the table 502 of the storage unit 500 ( step S105). Note that the table 502 is a table that stores the UID of the called wireless device that is transmitting voice communication. That is, while the UID of the wireless device is stored in the table 502, the determination unit 30 of the wireless communication device 1 recognizes that voice communication is being transmitted to the wireless device with the stored UID.

Next, the determination unit 30 of the wireless communication device 1 determines that the call is permitted in response to the voice communication call permission request of the fourth wireless device 100 . (step S106).

Next, when receiving the voice communication call permission signal, the fourth wireless device 100 starts a voice communication call (step S107).

When a voice communication call is started, the receiver 10 of the wireless communication device 1 receives a voice communication signal and outputs the received voice communication signal to the transmitter 40 . Then, the transmitter 40 of the wireless communication device 1 relays the received voice communication signal to the first wireless device 101 (step S108).

Next, an operation will be described in which the third radio 200 starts voice communication with the second radio 102 while the fourth radio 100 is performing voice communication with the first radio 101. do.

The user of the third wireless device 200 presses a PTT (Push to Talk) button (not shown) after inputting the UID (102_UI) of the second wireless device 102 in order to perform voice communication with the second wireless device 102. do. The voice communication referred to here is, for example, individual voice communication. When the PTT button is pressed, the third radio device 200 transmits to the radio communication device 1 a voice communication call authorization request signal including the UID (102_UI) of the second radio device 102 to which the call is made. Upon receiving the voice communication call authorization request signal including the UID (102_UI) of the second wireless device 102 of the call destination, the receiving unit 10 of the wireless communication device 1 issues a voice communication call authorization request including the UID (102_UI). is output to the determination unit 30 (step S109).

Next, the determination unit 30 of the wireless communication device 1 confirms whether or not the UID of the called wireless device that is transmitting voice communication via the acquisition unit 20 is stored in the table 502 of the storage unit 500. do. Since 101_UI is stored in advance in the table 502 as the UID of the called wireless device that is transmitting voice communication, it is determined that voice communication is being transmitted (step S110).

When it is determined that voice communication is being transmitted, the determination unit 30 of the wireless communication device 1 refers to the table 501 of the storage unit 500 to the acquisition unit 20 to identify the first wireless device that is transmitting voice communication. Location information (point C) associated with the UID (101_UI) of 101 and location information (point D) associated with the UID (102_UI) of the second wireless device 102, which is the call destination of the voice communication call authorization request. is obtained, the distance between the first wireless device 101 and the second wireless device 102 is calculated from the obtained positional information, and the calculated distance is received. Then, the determination unit 30 of the wireless communication device 1 determines whether or not the received distance between the first wireless device 101 and the second wireless device 102 is within the predetermined distance stored in the determination unit 30. Volume level control determination and call permission determination are performed. Note that the predetermined distance in the first embodiment is 10 m. In the first embodiment, as shown in FIG. 4, the distance between the first wireless device 101 and the second wireless device 102 is within 10 m. Therefore, the determination unit 30 of the wireless communication device 1 determines that the distance between the first wireless device 101 and the second wireless device 102 is within the predetermined distance. As a result, the determination unit 30 of the wireless communication device 1 determines that it is necessary to control the volume of voice reproduction for the second wireless device 102, and responds to the voice communication call permission request of the third wireless device 200. In response, it is determined that the call is permitted (step S111). Then, the determination unit 30 of the wireless communication device 1 transmits a volume control determination result signal to the second wireless device 102 and a call permission signal for the voice communication call permission request of the third wireless device 200 to the transmission unit 40. Output.

Next, the transmission unit 40 of the wireless communication device 1 transmits a volume level control notification signal, which is a signal for controlling the volume of the second wireless device 102, to the second wireless device 102 (step S112). Upon receiving the volume level control notification signal, the second radio 102 instructs the second radio 102 to control the volume of the audio reproduction by, for example, displaying on the screen, turning on the light, or emitting a beep sound. Along with informing the user, the second radio 102 reproduces the voice communication at a preset low volume.

The second radio device 102 controls the volume of audio reproduction by voice communication with the third radio device 200 by receiving the signal for controlling the volume of audio reproduction. Specifically, the sound volume is set low for reproduction. As for the method of controlling the volume, for example, the transmission unit 40 transmits a volume setting value signal set in advance to the determination unit 30, and the second wireless device 102 sets the volume according to the received volume setting value signal. Further, the method of controlling the volume is, for example, transmitting a volume control notification from the transmission unit 40, and setting the volume in the second radio device 102 according to the volume data set in advance in the second radio device 102. . Note that the method of controlling the volume is not limited to this. The method of controlling the volume may use known volume control techniques.

Next, the transmitter 40 of the wireless communication device 1 transmits a voice communication call authorization signal to the third wireless device 200 (step S113).

Upon receiving the voice communication call permission signal, the third wireless device 200 starts a voice communication call (step S114).

When the third radio device 200 starts calling, the receiving unit 10 of the radio communication device 1 receives the voice communication signal from the third radio device 200 and outputs the received voice communication signal to the transmitting unit 40. do. Then, the transmitter 40 of the wireless communication device 1 relays the received voice communication signal to the second wireless device 102 (step S115).

A case where wireless communication apparatus 1 receives a voice communication call permission request signal with fifth wireless device 105 as the call destination in step S109 will be described. As shown in FIG. 4, the fifth wireless device 105 is not within the predetermined distance (10 m) from the position of the first wireless device 101 . As a result, the wireless communication device 1 does not transmit the volume level control notification signal, which is a signal for controlling the volume of audio reproduction, to the fifth wireless device 105 . Thereby, the fifth wireless device 105 reproduces the voice communication without controlling the volume of the voice reproduction.

Next, when the user of the fourth radio device 100 ends the call to the first radio device 101, he/she releases a PTT (Push to Talk) button (not shown). When the PTT (Push to Talk) button is released, the fourth radio device 100 transmits a voice communication call end notification signal including the UID (101_UI) of the first radio device 101 of the called party to the radio communication device 1. (step S116). That is, the receiving unit 10 of the wireless communication device 1 receives from the fourth wireless device 100 the voice communication call termination notification signal including the UID (101_UI) of the first wireless device 101 of the called party. Then, the receiving unit 10 of the wireless communication device 1 outputs a voice communication call authorization end notification to the determining unit 30 .

Next, when the determination unit 30 of the wireless communication device 1 receives the voice communication call end notification signal, it determines that the voice communication call initiated by the voice communication call permission request in step S103 has ended. 101_UI recorded in the table 502 of 500 as the UID of the called wireless device that is transmitting voice communication is cleared (step S117). As a result, the wireless communication device 1 clears the UID of the wireless device stored in the table 502 of the storage unit 500, thereby recognizing that the transmission of the voice communication to the wireless device of the stored UID has ended.

Note that when the voice communication to the first wireless device 101 ends while the second wireless device 102 is controlling the volume of voice reproduction, the determination unit 30 of the wireless communication device 1 stores the After confirming that the UID of the called radio device that is transmitting voice communication is not recorded in the table 502 , the UID (102_UI) of the second radio device 102 is stored in the table 502 of the storage unit 500 . Then, the determination unit 30 of the wireless communication device 1 transmits a volume level control stop signal for stopping volume control to the second wireless device 102 via the transmission unit 40 . Upon receiving the volume level control stop signal, the second radio device 102 instructs the user of the second radio device 102 to stop volume control by, for example, displaying on the screen, turning on the illumination, or emitting a beep sound. , the second radio 102 plays the voice communication at an uncontrolled predetermined volume.

Through steps S101 to S117, the volume of voice reproduction of voice communication is controlled during the voice communication volume level control period shown in FIG.

As a result, in the wireless communication device 1 according to the first embodiment, while the voice communication is being transmitted to the first wireless device 101, the wireless You can control the volume of audio playback for voice communications to your device. As a result, the wireless communication device 1 does not interfere with hearing of the voice communication voice of the user of the first wireless device 101 , and at the same time enables the reproduction of the voice communication voice of the second wireless device 102 .

Note that the wireless communication device 1 receives volume information and position information for audio reproduction of each wireless device, and determines whether or not to control the volume of audio reproduction based on this volume information and position information. You can let it run. In this case, the wireless communication device 1 periodically receives position information and UID as well as volume information for audio reproduction from each wireless device, and stores the information in the table 501 of the storage unit 500 . Further, the determination unit 30 of the wireless communication device 1 changes the predetermined distance for determining whether or not to control the volume of audio reproduction using the volume information of audio reproduction of each wireless device. For example, as the volume of the audio reproduction of the first wireless device 101 transmitting voice communication increases, the value of the predetermined distance for determining whether or not to control the volume is decreased. The value of the predetermined distance for determining whether or not to control the volume is increased as the volume of the audio reproduction of the wireless device 101 is decreased. As a result, the predetermined distance for determining whether or not to control the volume of voice reproduction is changed according to the volume of voice reproduction of each wireless device, and the wireless device within the predetermined distance of the wireless device transmitting voice communication is changed. You can control the volume of audio playback for voice communication to. It should be noted that control based on the volume of audio reproduction of each wireless device can also be applied to other embodiments described below.

Note that the wireless communication device 1 may receive sound reproduction volume information of each wireless device, and change the volume level for controlling the sound reproduction volume based on this sound volume information. In this case, the wireless communication device 1 periodically receives position information and UID as well as volume information for audio reproduction from each wireless device, and stores the information in the table 501 of the storage unit 500 . Further, the determination unit 30 of the wireless communication device 1 changes the volume level for controlling the volume of audio reproduction using the volume information of audio reproduction of each wireless device. For example, the value of the volume level for controlling the volume of voice reproduction of the second radio device 102 is set smaller by a predetermined value than the volume of voice reproduction of the first radio device 101 that is transmitting voice communication. Also, as the volume of audio reproduction of the first radio device 101 that is transmitting voice communication increases, the value of the volume level for controlling the volume of audio reproduction of the second radio device 102 is set larger, and the voice communication is transmitted. As the volume of the audio reproduction of the first radio device 101 inside becomes smaller, the value of the volume level for controlling the volume of the audio reproduction of the second radio device 102 is set smaller. As a result, the volume level for controlling the volume of voice reproduction is changed according to the volume of voice reproduction of each radio, and the voice of voice communication is transmitted to radios within a predetermined distance from the radio that is transmitting voice communication. Playback volume can be controlled. It should be noted that control based on the volume of audio reproduction of each wireless device can also be applied to other embodiments described below.

Note that the radio communication device 1 may guide the position where the volume of audio reproduction is not controlled based on the position information of each radio. In this case, the determination unit 30 of the wireless communication device 1 uses the location information and the predetermined distance of each wireless device stored in the table 501 of the storage unit 500 to guide the location where the sound volume is not controlled. For example, the wireless communication device 1 may calculate the distance and direction to the position where the volume of audio reproduction is not controlled based on the position information and the predetermined distance of each wireless device, and guide the wireless device. Specifically, the distance and direction between the position of the first wireless device 101 and the position of the second wireless device 102 are calculated, and the distance and direction to the closest position other than the predetermined distance are calculated. Information on the distance and direction to the closest position other than the predetermined distance may be transmitted to the second wireless device 102 . As a result, it is possible to guide the position where the volume of audio reproduction is not controlled to the wireless device that controls the volume of audio reproduction. It should be noted that position guidance without controlling the volume of audio reproduction can be applied to other embodiments described below.

[Embodiment 2]
Next, Embodiment 2 will be described. The wireless system 1SYA of the second embodiment includes a wireless communication device 1A, a wireless device A100, a wireless device B200, a wireless device C101, a wireless device D102, a wireless device E105, and a storage unit 500A. there is The configuration of the radio system 1SYA is the same as the configuration of the radio system 1SY in FIG. 1, so illustration and description are omitted, and differences from the first embodiment will be described.

In the second embodiment, the radio A100, the radio B200, the radio C101, the radio D102, and the radio E105 are set with Group IDs (GIDs) to which a plurality of radios belong. The GID of the first radio device group composed of radio A100 and radio C101 is 300_GI, and the GID of the second radio device group composed of radio B200, radio D102, and radio E105 is 400_GI. do.

In the second embodiment, the storage unit 500A stores the UID of the wireless device that performs wireless communication with the wireless communication device 1A, the GID to which the wireless device belongs, and the location information in association with each other in a storage table. In addition, the storage unit 500A stores the GID of the wireless device group of the called party that is transmitting the group voice communication in another storage table.

Next, the configuration of the wireless communication device 1A will be described. The wireless communication device 1A includes a receiving section 10A, an acquiring section 20A, a determining section 30A, and a transmitting section 40A, and is connected to an external storage section 500A. The configuration of the wireless communication device 1A is the same as the configuration of the wireless communication device 1 in FIG. 2, so illustration and description are omitted, and differences from the first embodiment will be described.

In Embodiment 2, the receiver 10A receives UID, GID, and location information from each wireless device. Receiving section 10A then outputs the received UID, GID, and location information to storage section 500A. Further, the receiving unit 10A receives a group voice communication call authorization request signal including the GID of the called wireless device group and a group voice communication call end notification signal from the calling wireless device. Then, the receiving unit 10A outputs the received group voice communication call authorization request signal and group voice communication call end notification signal to the determination unit 30A. Further, the receiving unit 10A receives a voice communication call authorization request signal including the UID of the called wireless device from the calling wireless device. Then, the receiving section 10A outputs the received voice communication call permission request signal to the determining section 30A. Further, the receiving unit 10A receives voice communication from the wireless device of the calling source, and outputs the received voice communication to the transmitting unit 40A.

In the second embodiment, the acquisition unit 20A acquires the position information of all wireless devices connected to the wireless communication device 1A by wireless communication from the storage unit 500A, and uses the acquired position information of the wireless devices. , and outputs the calculated distance information to the determination unit 30A.

In the second embodiment, the determination unit 30A uses the GID of the callee wireless device group that is transmitting the group voice communication as the callee wireless device of the group voice communication call permission request received from the reception unit 10A. The GID of the group is stored in the storage unit 500A, and further, the call is permitted to the wireless device that originated the group voice communication call authorization request. Further, the determination unit 30A confirms the information of the called party that is transmitting the group voice communication in the storage unit 500A, and if the information of the called party is stored, the information of the wireless device group of the called party is stored. Get a GID. Then, the determination unit 30A acquires a voice communication call permission request signal including the UID of the called wireless device from the reception unit 10A. Furthermore, the determination unit 30A determines whether the acquisition unit 20A can initiate voice communication based on the acquired GID of the callee wireless device that is transmitting the group voice communication and the acquired UID of the callee of the voice communication call permission request. Distance information between the called radio of the call authorization request and the radio belonging to the called radio group transmitting group voice communication in advance is received. Further, the determination unit 30 determines the content of volume control in response to the voice communication call permission request and whether or not to permit the call, based on whether the received distance is within a predetermined distance stored therein. and make a judgment.

Specifically, when the determination unit 30A receives the voice communication call permission request signal from the reception unit 10A, the determination unit 30A determines whether the call destination wireless device of the voice communication call permission request and the call that is transmitting the group voice communication in advance are selected. Based on the distance information between the wireless devices belonging to the previous wireless device group and the predetermined distance stored inside, the wireless device that is the destination of the voice communication call permission request and the call that is transmitting the group voice communication in advance. If the distance between the wireless device belonging to the wireless device group of the called party is within a predetermined distance, it is determined that the volume of the wireless device of the called party of the voice communication call permission request is to be controlled, and voice communication is initiated. It is determined that the call is permitted to the wireless device that originated the call authorization request. Also, if the distance is not within the predetermined distance, it is determined that the volume control is not performed for the wireless device of the call destination of the voice communication call permission request, and the wireless device of the call source of the voice communication call permission request determines that the call is permitted. Then, the determination unit 30A sends a determination to control the volume of the called wireless device and a determination to permit the calling wireless device to make a call as the determination result for the voice communication call permission request. Output to 40A.

In Embodiment 2, the transmission unit 40A receives the determination result from the determination unit 30A. Then, according to the determination result, the transmission unit 40A sends a signal including the details of the determined volume control to the wireless device of the destination of the voice communication call permission request, that is, a volume level control notification for controlling the volume of voice reproduction. A signal containing a signal is transmitted, and a signal containing determined content, that is, a signal containing call authorization is transmitted to the wireless device that originated the voice communication call authorization request. Further, the transmitting unit 40A relays the voice communication of the calling radio device received from the receiving unit 10A, and transmits the voice communication to the called radio device.

With the above-described configuration, the wireless communication device 1A is capable of performing new communication with respect to other wireless devices that are within a predetermined distance from the destination wireless device among the wireless devices that are performing group voice communication. When another voice communication is transmitted to the other voice communication, the volume of the voice reproduced in the other voice communication can be controlled. As a result, it is possible to reproduce the voice communication of another wireless device without disturbing the hearing of the voice communication of the user of the wireless device belonging to the wireless device group performing the group voice communication.

The operation of the wireless communication device 1A is the same as the description of the operation of the wireless communication device 1 in FIG. 3, and illustration and description are omitted.

Next, the operation of the second embodiment will be described in detail with reference to FIGS. 6 and 7. FIG. In FIGS. 6 and 7, the same processing is executed with the same step numbers.

In the second embodiment, the fourth wireless device 100 performs group voice communication with the first wireless device group as the call destination via the wireless communication device 1A, and the third wireless device 200 performs the second wireless device group. A case in which a voice communication call permission request is made with the wireless device 102 as the call destination will be described.

Each wireless device periodically acquires its own location information when the power is turned on, and transmits the acquired location information, the UID identifying itself, and the GID to which the wireless device belongs to the wireless communication device 1A (step S201). ). In addition, let position information be latitude and longitude information here.

Receiving section 10A of wireless communication apparatus 1A, upon receiving the location information, UID and GID from each wireless device, outputs the received location information, UID and GID to storage section 500A. Then, the storage unit 500A associates the location information, UID, and GID of each wireless device and stores them in the table 501A (step S202). Note that the table 501A of the storage unit 500A is a table that associates and stores the UID, GID, and latest position information of each wireless device. Also, the table 501A is periodically rewritten with the latest information.

First, in order to perform group voice communication with the first radio group, the user of the fourth radio 100 inputs the GID (300_GI) of the first radio group, and then performs PTT (Push to Talk) (not shown). Press the button. When the PTT button is pressed, the fourth wireless device 100 transmits a group voice communication call permission request signal including the GID (300_GI) of the first wireless device group, which is the called party, to the wireless communication device 1A. . The transmitted group voice communication call permission request signal including the GID (300_GI) of the first wireless device group of the called party is received by the receiver 10A of the wireless communication device 1A. Then, the received group voice communication call permission request including the GID (300_GI) of the first wireless device group of the called party is output to the determination unit 30A (step S203). In the second embodiment, the first radio device 101 and the fourth radio device 100 belong to the first radio device group.

Next, determination unit 30A of wireless communication device 1A stores the GID (300_GI) of the first wireless device group included in the group voice communication call permission request input in step S203 in table 502A of storage unit 500A. (Step S204). Note that the table 502A is a table that stores the GID of the wireless device group of the called party that is transmitting the group voice communication. That is, while the GID of the wireless device group is stored in the table 502A, the determination unit 30A of the wireless communication device 1A recognizes that the group voice communication is being transmitted to the wireless device of the stored GID. .

Next, the determination unit 30A of the wireless communication device 1A determines that the call is permitted in response to the group voice communication call permission request of the fourth wireless device 100, and sends the call to the fourth wireless device via the transmission unit 40A. 100, a group voice communication call authorization signal is transmitted (step S205).

Next, when receiving the group voice communication call permission signal, the fourth wireless device 100 starts a group voice communication call (step S206).

When a group voice communication call is started, the receiver 10A of the wireless communication device 1A receives the group voice communication signal and outputs the received group voice communication signal to the transmitter 40A. Then, the transmitter 40A of the wireless communication device 1A relays the received group voice communication signal to the wireless devices belonging to the first wireless device group (step S207).

Next, an operation in which the third radio 200 starts voice communication with the second radio 102 while the fourth radio 100 is performing group voice communication with the first radio group. explain.

The user of the third wireless device 200 presses a PTT (Push to Talk) button (not shown) after inputting the UID (102_UI) of the second wireless device 102 in order to perform voice communication with the second wireless device 102. do. The voice communication referred to here is, for example, individual voice communication. When the PTT button is pressed, the third radio device 200 transmits a voice communication call permission request signal including the UID (102_UI) of the second radio device 102 to be called to the radio communication device 1A. When receiving a voice communication call permission request signal including the UID (102_UI) of the second wireless device 102 of the call destination, the receiving unit 10A of the wireless communication device 1A sends a voice communication call permission request including the UID (102_UI). is output to the determination unit 30A (step S208).

Next, the determining unit 30A of the wireless communication device 1A determines whether or not the GID of the wireless device group of the called party that is transmitting the group voice communication via the acquiring unit 20A is stored in the table 502A of the storage unit 500A. to confirm. Since 300_GI is stored in advance in the table 502A as the GID of the radio device group of the called party that is transmitting group voice communication, it is determined that group voice communication is being transmitted (step S209).

When determining that the group voice communication is being transmitted, the determination unit 30A of the wireless communication device 1A refers to the table 501A of the storage unit 500A to the acquisition unit 20A to determine the first group voice communication being transmitted. Acquire location information associated with the UID of the wireless device belonging to the wireless device group and location information associated with the UID (102_UI) of the second wireless device 102 that is the call destination of the voice communication call permission request, and acquire From the position information obtained, the wireless device that belongs to the first wireless device group and is closest to the second wireless device 102, which is the call destination of the voice communication call permission request, is specified. Let In the second embodiment, the first wireless device 101 belongs to the first wireless device group and is closest to the position of the second wireless device 102 . Further, the determination unit 30A of the wireless communication device 1A provides the acquisition unit 20A with the location information (point C ) and the position information (point D) of the second radio device 102, which is the call destination of the voice communication call permission request, to calculate the distance between the first radio device 101 and the second radio device 102, Receive the calculated distance. Then, the determination unit 30A of the wireless communication device 1A determines the distance between the first wireless device 101 and the second wireless device 102 belonging to the received first wireless device group as the predetermined distance stored in the determination unit 30. Volume level control determination and call permission determination are performed based on whether or not it is within the range. Note that the predetermined distance in the second embodiment is 10 m. In the second embodiment, as shown in FIG. 6, the distance between the position of the radio device (first radio device 101) belonging to the first radio device group and the position of the second radio device 102 is within 10 m. do. Therefore, the determination unit 30A of the wireless communication device 1A determines that the distance between the wireless device (first wireless device 101) belonging to the first wireless device group and the second wireless device 102 is within a predetermined distance. . As a result, the determination unit 30A of the wireless communication device 1A determines that it is necessary to control the volume of voice reproduction for the second wireless device 102, and responds to the voice communication call permission request of the third wireless device 200. It is determined that the call is permitted (step S210). Then, the determination unit 30 of the wireless communication device 1 transmits a volume control determination result signal to the second wireless device 102 and a call permission signal for the voice communication call permission request of the third wireless device 200 to the transmission unit 40. Output.

Next, the transmitter 40A of the wireless communication device 1A transmits a volume level control notification signal, which is a signal for controlling the volume of the second wireless device 102, to the second wireless device 102 (step S211). Upon receiving the volume level control notification signal, the second radio 102 instructs the second radio 102 to control the volume of the audio reproduction by, for example, displaying on the screen, turning on the light, or emitting a beep sound. Along with informing the user, the second radio 102 reproduces the voice communication at a preset low volume.

The second radio device 102 controls the volume of audio reproduction by voice communication with the third radio device 200 by receiving the signal for controlling the volume of audio reproduction. Specifically, the sound volume is set low for reproduction. As for the method of controlling the volume, for example, the transmission unit 40A transmits a preset volume setting value signal to the determination unit 30A, and the second wireless device 102 sets the volume according to the received volume setting value signal. Further, the method of controlling the volume is, for example, transmitting a volume control notification from the transmission unit 40A, and setting the volume in the second radio device 102 according to the volume data previously set in the second radio device 102. . Note that the method of controlling the volume is not limited to this. The method of controlling the volume may use known volume control techniques.

Next, the transmission unit 40A of the radio communication device 1A transmits a voice communication call authorization signal to the third radio device 200 (step S212).

Upon receiving the voice communication call permission signal, the third wireless device 200 starts a voice communication call (step S213).

When the third radio device 200 starts calling, the receiving unit 10A of the radio communication device 1A receives the voice communication signal from the third radio device 200 and outputs the received voice communication signal to the transmitting unit 40A. do. Then, the transmitter 40A of the wireless communication device 1A relays the received voice communication signal to the second wireless device 102 (step S214).

A case will be described where, in step S208, the wireless communication device 1A receives a voice communication call permission request signal with the fifth wireless device 105 as the call destination. As shown in FIG. 6, the position of the fifth wireless device 105 is not within a predetermined distance (10 m) from the position of the first wireless device 101 belonging to the first wireless device group. As a result, the wireless communication device 1A does not transmit the volume level control notification signal, which is a signal for controlling the volume of audio reproduction, to the fifth wireless device 105. FIG. Thereby, the fifth wireless device 105 reproduces the voice communication without controlling the volume of the voice reproduction.

Next, the user of the fourth wireless device 100 releases the PTT (Push to Talk) button (not shown) when the call to the first wireless device group ends. When the PTT (Push to Talk) button is released, the fourth radio device 100 transmits a group voice communication call end notification signal including the GID (300_GI) of the first radio device group of the called party to the radio communication device. 1A (step S215). That is, the receiver 10A of the wireless communication device 1A receives from the fourth wireless device 100 the group voice communication call end notification signal including the GID (300_GI) of the first wireless device group of the called party. Then, the receiving section 10A of the wireless communication device 1A outputs a group voice communication call end notification to the determining section 30A.

Next, when the determination unit 30A of the wireless communication device 1A receives the group voice communication call end notification signal, it determines that the group voice communication call initiated by the group voice communication call permission request in step S203 has ended. Then, 300_GI recorded in the table 502A of the storage unit 500A as the GID of the called radio device that is transmitting the group voice communication is cleared (step S216). As a result, the wireless communication device 1A clears the GID of the wireless device group stored in the table 502A of the storage unit 500A. Recognize that you are finished.

Note that when the group voice communication to the first wireless device group ends while the second wireless device 102 is controlling the volume of voice reproduction, the determination unit 30A of the wireless communication device 1A changes the storage unit 500A is not recorded in the table 502A of the called party which is transmitting group voice communication. Then, determination unit 30A of wireless communication device 1A transmits a volume level control stop signal for stopping volume control to second wireless device 102 via transmission unit 40A. Upon receiving the volume level control stop signal, the second radio device 102 instructs the user of the second radio device 102 to stop volume control by, for example, displaying on the screen, turning on the illumination, or emitting a beep sound. , the second radio 102 plays the voice communication at an uncontrolled predetermined volume.

Through steps S201 to S216, the volume of voice reproduction of voice communication is controlled during the voice communication volume level control period shown in FIG.

As a result, in the wireless communication device 1A according to the second embodiment, while the group voice communication is being transmitted to the wireless devices (first wireless device 101) belonging to the first wireless device group, the first It is possible to control the sound volume of voice reproduction of voice communication for wireless devices within a predetermined distance from the wireless device (first wireless device 101) belonging to the wireless device group. As a result, the wireless communication device 1A does not interfere with the hearing of the voice communication voice of the user of the wireless device (first wireless device 101) belonging to the first wireless device group, and at the same time, the voice of the second wireless device 102 can be heard. Allows audio playback of communications.

It should be noted that the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the scope of the invention.

1, 1A wireless communication device 10 10A receiver 20, 20A acquirer 30, 30A determiner 40, 40A transmitter

Claims (5)

a transmitter for transmitting an audio signal;
a receiving unit that receives a call authorization request for voice communication;
an acquisition unit that acquires a distance between wireless devices;
When the receiving unit receives a call permission request from the third radio to the second radio while the transmitting unit is transmitting the audio signal to the first radio, the acquiring unit A determination unit that determines the content of volume control for the second radio based on the acquired distance between the first radio and the second radio,
The transmission unit transmits a signal including the content determined by the determination unit to the second wireless device.
A wireless communication device characterized by: The determining unit determines to control the volume of the second wireless device when the distance between the first wireless device and the second wireless device is within a predetermined distance,
The transmission unit transmits a signal including the content of the volume control determined by the determination unit to the second wireless device.
The wireless communication device according to claim 1, characterized by: The acquisition unit acquires a volume level of audio reproduction of the first wireless device,
the determination unit changes the value of the predetermined distance according to the volume level of the first radio;
The radio communication device according to claim 1 or 2. The acquisition unit acquires a volume level of audio reproduction of the first wireless device,
The determination unit changes the volume level of volume control for the second radio according to the volume level of the first radio.
The radio communication device according to claim 1 or 2. transmitting an audio signal;
receiving a call authorization request for voice communication;
obtaining the distance between radios;
When receiving a call permission request from the third radio to the second radio while the audio signal is being transmitted to the first radio, the first radio and the second radio Determining the content of volume control for the second radio based on the distance from the radio;
and transmitting a signal containing the determined content to the second radio.

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