JP2020129764A - Relay station, relay device, and relay method - Google Patents

Abstract

To allow only communication from its own company to be heard.SOLUTION: Relay stations include a first relay device to which a wireless terminal of a first company normally connects and another relay device to which another wireless terminal normally connects. The first relay device enables transmission of a voice signal to the wireless terminal of the first company when detecting connection of a microphone to the first relay device, and enables voice output of voice corresponding to a received uplink signal when the first relay device or the other relay device receives the uplink signal from the wireless terminal of the first company.SELECTED DRAWING: Figure 3

Description

The present invention relates to a relay station, a relay device, and a relay method.

A communication system is known in which a relay device and a plurality of terminals such as transceivers are connected to each other.

For example, Patent Document 1 discloses a technique in which a microphone and a speaker are connected to a relay device and communication is performed from the relay device to each transceiver.

JP, 2005-146584, A

The relay device used in the communication system is arranged in a relay station shared by a group of a plurality of businesses. In this case, when communicating from the relay device of the relay station, there is a risk that the call of another carrier may be intercepted.

The present invention proposes a relay station, a relay device, and a relay method that enable only the communication of the own operator to be heard when communicating from the relay device of the relay station shared by a plurality of operators.

A relay station of the present invention includes a first relay device to which a wireless terminal of a first business operator normally connects, and another relay device to which another wireless terminal normally connects, the first relay device. When the device detects that a microphone is connected to the first relay device, the device enables transmission of an audio signal to the wireless terminal of the first operator, and the first relay device or the other relay device. When the device receives an uplink signal from the wireless terminal of the first operator, the device includes a control unit that enables voice output of a voice corresponding to the received uplink signal.

The relay device of the present invention is a relay device, and a relay device to which a wireless terminal is normally connected is defined for each operator, and the relay device includes a microphone attachment/detachment detection unit that detects whether or not a microphone is connected. When the microphone attachment/detachment detection unit detects that a microphone is connected, it enables transmission of an audio signal to a wireless terminal to which the relay device is a normal connection destination, and the relay device causes the wireless terminal to transmit the audio signal. When the uplink signal is received, the voice output of the voice corresponding to the uplink signal is enabled, and the relay device to which another operator normally connects has received the uplink signal from the wireless terminal. In this case, a voice output control unit that gives an instruction to enable voice output of voice corresponding to the uplink signal.

A relay method of the present invention includes a first relay device to which a wireless terminal of a first business operator normally connects, and another relay device to which another wireless terminal of another operator normally connects. A relay method of a relay station, comprising: detecting a connection of a microphone to the first relay device; and transmitting a voice signal to a wireless terminal of the first operator when the connection of the microphone is detected. When the enabling step and the first relay device or the other relay device receives an uplink signal from the wireless terminal of the first operator, a voice output of voice corresponding to the uplink signal is performed. And enabling steps.

According to the present invention, when communication is performed from a relay device of a relay station shared by a plurality of carriers, it is possible to intercept and receive only the communication of the own carrier.

FIG. 1 is a schematic diagram showing an example of the configuration of a wireless communication system including a relay device according to the first embodiment of the present invention. FIG. 2 is a block diagram showing an example of the configuration of the wireless terminal according to this embodiment. FIG. 3 is a block diagram showing an example of the configuration of the relay device of this embodiment. FIG. 4 is a schematic diagram showing an example of the speaker output control table. FIG. 5 is a schematic diagram for explaining the problems of the conventional technique. FIG. 6 is a schematic diagram for explaining output control of the speaker. FIG. 7 is a schematic diagram for explaining speaker output control different from that in FIG. FIG. 8 is a schematic diagram for explaining output control of a speaker, which is different from FIGS. 6 and 7. FIG. 9 is a sequence diagram showing a process of setting the received voice as the output target of the speaker. FIG. 10 is a sequence diagram showing a process in which the received voice is not output from the speaker. FIG. 11 is a sequence diagram showing a process of stopping the output of the speaker of the received voice. FIG. 12 is a sequence diagram showing a process different from that of FIG. 11 for stopping the output of the speaker of the received voice. FIG. 13 is a sequence diagram showing a process of always permitting the output of the speaker. FIG. 14 is a sequence diagram showing a process of temporarily prohibiting the speaker output of the received voice. FIG. 15 is a sequence diagram showing processing for temporarily permitting speaker output of received voice. FIG. 16 is a sequence diagram illustrating an example of processing in which each relay device notifies the wireless terminal of the setting state of the speaker. FIG. 17 is a flowchart showing an example of the flow of processing when physical connection or disconnection of a microphone is detected. FIG. 18 is a flowchart showing an example of the flow of processing when a speaker output setting notification is received from another relay device. FIG. 19 is a flowchart showing an example of the flow of processing when a speaker output setting change request is received from a wireless terminal. FIG. 20 is a flowchart showing an example of the flow of processing when a temporary speaker output setting is received from a wireless terminal. FIG. 21 is a flowchart showing an example of the flow of processing for starting or stopping speaker output. FIG. 22 is a flowchart showing an example of the flow of processing for determining whether or not speaker output is possible. FIG. 23 is a schematic diagram showing an example of the determination table.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited to this embodiment, and when there are a plurality of embodiments, the present invention includes a combination of the embodiments.

[First embodiment]
A configuration of a wireless communication system including a relay device according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic diagram showing an example of the configuration of a wireless communication system according to the first embodiment of the present invention.

As shown in FIG. 1, the wireless communication system 10 includes a relay station 100, a plurality of wireless terminals 150-1 of an operator A, a plurality of wireless terminals 150-2 of an operator B, and a plurality of wireless terminals of an operator C. The wireless terminal 150-3 and the plurality of wireless terminals 150-4 of the business operator D are included. The wireless terminals 150-1 to 150-4 may be collectively referred to as the wireless terminal 150.

The relay station 100 is composed of a plurality of relay devices. In the example illustrated in FIG. 1, the relay station 100 includes a first relay device 110-1, a second relay device 110-2,..., An n-th (n is an integer of 2 or more) relay device 110-n. Composed of. The first relay apparatus 110-1 to the n-th relay apparatus 110-n are connected to each other via a communication line NW such as an IP (Internet Protocol) and a serial line. Note that the number of relay devices forming the relay station is not particularly limited as long as it is two or more. The first relay apparatus 110-1 to the n-th relay apparatus 110-n are housed in, for example, a rack and installed in one place. Further, an operator O for managing the first relay apparatus 110-1 to the nth relay apparatus 110-n may be resident in the relay station 100. The first relay device 110-1 to the n-th relay device 110-n may be collectively referred to as the relay device 110.

A CH (channel) having frequency information for transmitting/receiving to/from a wireless terminal is set to the first relay apparatus 110-1 to the n-th relay apparatus 110-n. In this embodiment, two CHs are set in each of the first relay device 110-1 to the nth relay device 110-n. For example, in the case of the first relay device 110-1, two CHs, CH1 and CH2, are set. That is, the first relay device 110-1 to the nth relay device 110-n are relay devices that perform communication by TDMA (Time Division Multiple Access). Note that only one CH may be set in the first relay device 110-1 to the nth relay device 110-n. In this case, the first relay apparatus 110-1 to the n-th relay apparatus 110-n perform communication by the FDMA (Frequency Division Multiple Access) method.

Each of the first relay device 110-1 to the n-th relay device 110-n has a built-in speaker. The first relay device 110-1 has a speaker 130-1. The second relay device 110-2 has a speaker 130-2. The n-th relay device 110-n has a speaker 130-n. The speakers 130-1 to 130-n output the audio signal of the uplink signal received from the wireless terminal as audio.

The first relay apparatus 110-1 to the n-th relay apparatus 110-n are also compatible with base operation, and can connect an external microphone to transmit voice to a wireless terminal. In the example illustrated in FIG. 1, the microphone 140 is connected to the second relay device 110-2. Each of the first relay apparatus 110-1 to the n-th relay apparatus 110-n has a function (Slot Selection) of selecting a time slot. For example, it is possible to select which of the time slot 1 and the time slot 2 to transmit the sound from the microphone 140. Which of time slot 1 and time slot 2 is used for transmission can be selected in advance by a PC (Personal Computer) application.

In the present embodiment, wireless terminals of a plurality of unrelated operators can share the relay station 100. In the example shown in FIG. 1, the wireless terminals of the business operator A, the business operator B, the business operator C, and the business operator D share the relay station 100. In the present embodiment, it is assumed that the operators share the relay station 100, but this does not limit the present invention. The present invention can also be applied to the case where the relay station 100 is shared by a plurality of groups classified by some attribute.

The relay station 100 operates by changing the Home CH setting for each operator so that the calls of the operators are not interfered with each other. For example, each wireless terminal monitors the Home CH set in itself during standby.

In the example illustrated in FIG. 1, the wireless terminal 150-1 of the business operator A monitors CH1 of the first relay apparatus 110-1, and the wireless terminal 150-2 of the business operator B monitors CH2 of the first relay apparatus 110-1. Monitor. In this case, the first relay device 110-1 is a normal connection destination between the wireless terminal 150-1 and the wireless terminal 150-2. The wireless terminal 150-3 of the business operator C monitors CH3 of the second relay apparatus 110-2, and the wireless terminal 150-4 of the business operator D monitors CH4 of the second relay apparatus 110-2. In this case, the second relay device 110-2 is a normal connection destination of the wireless terminal 150-3 and the wireless terminal 150-4.

When the wireless terminal starts a voice call, if the Home CH is not being used by another wireless terminal, the Home CH is preferentially used, but if the Home CH is used, the system notifies it. Make a voice call using another CH (trunk out).

The configuration of the wireless terminal according to this embodiment will be described with reference to FIG. FIG. 2 is a block diagram showing an example of the configuration of the wireless terminal according to this embodiment.

The wireless terminal 150 includes a storage unit 151, a voice input unit 152, a voice output unit 153, an operation unit 154, a display unit 155, a wireless communication unit 156, and a control unit 160.

The storage unit 151 records various data. The storage unit 151 stores, for example, a program for realizing each unit of the control unit 160. The control unit 160 realizes the function of each unit by expanding and executing the program stored in the storage unit 151. The storage unit 151 can be realized by a semiconductor memory device such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory (Flash Memory), or a storage device such as a hard disk, a solid state drive, or an optical disk. You can

The voice input unit 152 receives various voices. The voice input unit 152 receives, for example, a voice to be transmitted to another wireless terminal from the user, and outputs it as a voice signal to the control unit 160. The voice input unit 152 is composed of, for example, a normal microphone.

The voice output unit 153 outputs various voices. The voice output unit 153 outputs a voice corresponding to a signal transmitted from another wireless terminal, for example. The audio output unit 153 is composed of, for example, a normal speaker.

The operation unit 154 receives various operations on the wireless terminal 150. The various operations include, for example, operations of changing various settings of the wireless terminal 150 and switching on/off of voice transmission/reception. The operation unit 154 can be realized by, for example, a physical switch or a touch panel provided on the display unit 155. When the operation unit 154 is operated, a control signal corresponding to the operation is input to the operation control unit 163.

The display unit 155 displays various information. The display unit 155 displays, for example, various information regarding wireless communication. The display unit 155 is a display including, for example, a liquid crystal display (LCD: Liquid Crystal Display) or an organic EL (Organic Electro-Luminescence) display.

The wireless communication unit 156 performs information communication including voice with another wireless terminal 150 via the relay device 110 of the relay station 100.

The control unit 200 includes a microphone input control unit 161, a voice output control unit 162, an operation control unit 163, a display control unit 164, and a wireless communication control unit 165. The control unit 200 can be realized by an electronic circuit including a CPU (Central Processing Unit) and a DSP (Digital Signal Processor), for example.

The microphone input control unit 161 encodes the audio signal detected by the audio input unit 152 and outputs it to the wireless communication control unit 165.

The wireless communication control unit 165 converts the encoded audio signal into a predetermined communication format,
The data is transmitted to the relay device 110 via the wireless communication unit 156. The wireless communication control unit 165 also decodes the signal relayed by the relay device 110 via the wireless communication unit 156, and outputs the decoded audio signal and control signal to the audio output control unit 162.

The audio output control unit 162 controls, based on the control signal, whether to output the audio signal decoded by the wireless communication control unit 165 via the audio output unit 153 (mute).

The operation control unit 163 receives, from the operation unit 154, operation information according to an operation from a user or the like. The operation control unit 163 outputs a control signal for operating each unit of the control unit 160 to each unit according to the received operation information.

The display control unit 164 displays various images on the display unit 155. The display control unit 164 displays information regarding wireless communication on the display unit 155, for example.

An example of the configuration of the relay device according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram showing an example of the configuration of the relay device of this embodiment.

The relay device 110 includes a storage unit 111, a microphone input terminal 112, a voice output unit 113, a wireless communication unit 114, an operation unit 115, a display unit 116, an inter-relay device communication unit 117, and a control unit 200. Equipped with.

A microphone terminal is connected to the microphone input terminal 112 as an audio input unit. That is, in the relay device 110, the microphone as the audio output unit can be arbitrarily attached and detached. The microphone is attached to and detached from the microphone input terminal 112 by the operator O, for example.

The voice output unit 113 outputs various voices. The voice output unit 113 outputs a voice corresponding to a signal transmitted from, for example, a wireless terminal. The audio output unit 153 is composed of, for example, a normal speaker. The audio output unit 153 may be provided integrally with the relay device 110 or may be externally connected.

The wireless communication unit 114 performs information communication between the relay device 110 and an external information processing device. The wireless communication unit 114 performs information communication between the wireless terminal 150 and a wireless terminal or the like.

The operation unit 115 receives various operations on the relay device 110. The various operations include, for example, operations of changing various settings of the relay device 110. The operation unit 115 can be realized by, for example, a physical switch or a touch panel provided on the display unit 116. When the operation unit 115 is operated, a control signal corresponding to the operation is input to the operation control unit 250.

The display unit 116 displays various information. The display unit 116 displays, for example, various information regarding wireless communication. The display unit 116 is a display including a liquid crystal display or an organic EL display, for example.

The inter-relay device communication unit 117 performs information communication between the relay device 110 and another relay device 110 included in the relay station 100. The relay device 110 and the other relay device 110 are connected by a communication line NW. The inter-relay device communication unit 117 performs information communication between the relay device 110 and another relay device 110 included in the relay station 100 via the communication line NW. The content of the information communication is, for example, information in which one relay device 110 changes the setting of another relay device 110. Further, it may be the uplink signal itself from the wireless terminal 150 received by one relay apparatus 110 or a voice signal included in the uplink signal. That is, the uplink signal received by one of the relay devices 110 can be sent to the other relay device 110 over the communication line NW.

The storage unit 111 records various data. The storage unit 111 stores, for example, a program for realizing each unit of the control unit 200. The control unit 200 realizes the function of each unit by expanding and executing the program stored in the storage unit 111. The storage unit 111 can be realized by, for example, a semiconductor memory device such as a RAM, a ROM, a flash memory, or a storage device such as a hard disk, a solid state drive, or an optical disk.

The storage unit 111 stores a speaker output setting state for each Home CH, for example. The storage unit 111 stores, for example, a speaker output setting state as a speaker output control table.

The speaker output control table will be described with reference to FIG. FIG. 4 is a schematic diagram showing an example of the speaker output control table. Although it is described that the output of the speaker is controlled, it may be whether to decode the voice corresponding to the signal received by the relay device, that is, whether or not the voice data is decoded. Output is muted. In other words, it is the same as controlling whether or not voice output is possible.

As shown in FIG. 4, the speaker output control table 300 includes information on speaker output settings and state management for each Home CH. The state management includes microphone connection, customer request (always), and customer request (temporary). The customer request (always) is a customer's always request when making a call. The customer request (temporary) is a temporary request of the customer when making a call.

Possible values for the speaker output setting state are "Enable" and "Disable". In the case of "Enable", it means that speaker output is performed. In the case of “Disable”, it means that speaker output is not performed. The relay device 110 controls the speaker output according to this information.

Possible values of the microphone connection state are “Off” that is not connected and “On” that is connected. "Off" means that the microphone is not connected. “On” means that a microphone is connected.

Possible values of the customer request (always) are “None”, “Enable”, and “Disable”. “None” means that the request of the customer is not accepted. “Enable” means that the customer always permits the speaker output. “Disable” means that the customer does not always allow the speaker output.

Possible values of the customer request (temporary) are "None", "Enable", and "Disable". “None” means that the request of the customer is not accepted. “Enable” means that the customer temporarily permits the speaker output. “Disable” means that the customer temporarily does not allow the speaker output.

The control unit 200 includes a microphone attachment/detachment detection unit 210, a microphone input control unit 220, a voice output control unit 230, a wireless communication control unit 240, an operation control unit 250, a display control unit 260, and a relay device communication control. And section 270. The control unit 200 can be realized by an electronic circuit including a CPU, for example.

The microphone attachment/detachment detection unit 210 detects that a microphone is connected to the microphone input terminal 112. The microphone attachment/detachment detection unit 210 detects that the microphone connected to the microphone input terminal 112 is removed from the microphone input terminal 112. The microphone attachment/detachment detection unit 210 notifies the audio output control unit 230 of the connection state of the microphone.

The microphone input control unit 220 controls the microphone connected to the microphone input terminal 112 under the control of the operation control unit 163 when the microphone attachment/detachment detection unit 210 detects that the microphone is connected. The microphone input control unit 220 transmits the audio signal input to the microphone from the wireless communication unit 114 via the wireless communication control unit 240 when, for example, the operation control unit 163 instructs to transmit.

The audio output control unit 230 controls the audio output unit 113. The voice output control unit 230 switches ON/OFF of the voice output unit 113, for example. Further, the audio output control unit 230 determines whether the relay device 110 of its own or one of the other relay devices 110 constituting the relay station 100 determines the relay device 110 of its own based on the microphone connection state of the microphone attachment/detachment detection unit 210. When an uplink signal is received from a wireless terminal as a normal connection destination, it is possible to output the sound of the received signal. The voice output control unit 230 can output the voice corresponding to the control signal, that is, the control signal that enables not only the relay device 110 that can output the voice but also the other relay devices 110. Output the control signal. When an uplink signal is received from a wireless terminal that does not normally connect the relay device 110, the control signal from another relay device 110 enables the output of the received signal. There is.

The wireless communication control unit 240 controls the wireless communication unit 114. The wireless communication control unit 240 transmits voice to a wireless terminal or the like via the wireless communication unit 114. The wireless communication control unit 240 receives voice from a wireless terminal via the wireless communication unit 114. In the normal case, the wireless communication control unit 240 causes the wireless communication unit 114 to transmit the signal received by the wireless communication unit 114, that is, controls the relay. In addition, when the microphone attachment/detachment detection unit 210 detects the connection of the microphone to the microphone input terminal 112, the wireless communication control unit 240 enables transmission of voice to a wireless terminal or the like to which the relay device 110 is connected.

The operation control unit 250 receives operation information according to an operation from a user or the like from the operation unit 115. The operation control unit 250 outputs a control signal for operating each unit of the control unit 200 to each unit according to the received operation information.

The display control unit 260 displays various images on the display unit 116. The display control unit 260 displays information regarding wireless communication on the display unit 116, for example.

The inter-relay device communication control unit 270 controls the inter-relay device communication unit 117. The inter-relay device communication control unit 270 performs information communication with another relay device 110 via the inter-relay device communication unit 117. When the inter-relay device communication control unit 270 receives an uplink from the wireless terminal 150 to which the voice output control unit 230 is normally connected, the inter-relay device communication control unit 270 outputs the voice output of the voice corresponding to the received uplink signal. Upon reception of the enabling instruction, the communication is transmitted to another relay device 110 via the inter-relay device communication unit 117. In addition, the inter-relay device communication control unit 270 responds to the uplink signal received by the audio output control unit 230 when receiving the instruction from the other relay device 110 via the inter-relay device communication unit 117. The instruction to enable the voice output of the voice is transmitted.

Further, the inter-relay device communication control section 270 may transmit/receive a voice signal of voice corresponding to the received uplink signal to/from another relay device 110 via the inter-relay device communication section 117. The voice signal is encoded and transmitted/received between the relay devices by a predetermined protocol. That is, when the instruction is performed, the other relay device 110 transmits the voice signal of the voice corresponding to the uplink signal from the wireless terminal to which the relay device that has performed the instruction is connected, between the relay devices. It is transmitted via the unit 117. The inter-relay device communication control unit 270 outputs the audio signal sent from the other relay device 110 to the audio output unit 113 via the audio output control unit 230.

Problems of the conventional technique will be described with reference to FIG. FIG. 5 is a schematic diagram for explaining the problems of the conventional technique. In each of the following drawings, an arrow connecting the wireless terminal and the CH means that information communication is performed between the wireless terminal and the CH.

Conventionally, when a relay device of the company (for example, the first relay device 110-1) receives an audio signal from a wireless terminal, it is conscious of which operator the wireless terminal that is the source of the audio signal belongs to. Instead, the speaker 130-1 outputs the voice unconditionally. Specifically, in the first relay device 110-1, the Slot Selection is set to “2”, CH1 receives the uplink signal from the wireless terminal 150-1 of the carrier A, and CH2 receives the carrier. It receives an uplink signal from the wireless terminal 150-2 of B. Here, "1" and "2" are set in the Slot Selection. When "1" is selected, the CH with the smaller number outputs the received voice, and when "2", the larger number is selected. The CH outputs the sound of the received uplink signal. Therefore, the speaker 130-1 of the first relay device 110-1 outputs the voice of the uplink signal received from CH2 from the wireless terminal 150-2 of the business operator B. In the second relay device 110-2, Slot Selection is set to “1”, CH3 receives the uplink signal from the wireless terminal 150-3 from the carrier C, and CH4 receives the wireless signal of the carrier D from CH4. The uplink signal from 150-4 is received. Therefore, the speaker 130-2 of the second relay apparatus 110-2 outputs the sound of the uplink signal received from CH3 by the wireless terminal 150-3 of the business operator C. In the conventional technology, in such a situation, when the operator O of the management company exists near the first relay device 110-1, the content of the conversation is heard and there is a problem in security/confidentiality. On the contrary, in the case of the TDMA system, even when the relay device wants to hear the voice from the wireless terminal, the first relay device 110-1 of the company has a slot opposite to the Slot Selection preset by the PC application. The audio of the received uplink signal could not be output to the speaker. Conventionally, since there is no mechanism for dynamically changing the setting of Slot Selection, only one CH of the relay station 100 can hear the received voice, but there is a problem that the other CH cannot receive the received voice.

An outline of the relay method according to the embodiment of the present invention will be described with reference to FIGS. 6, 7, and 8. FIG. 6 is a schematic diagram for explaining output control of a speaker in a relay station when a microphone is not connected to any of the relay devices. FIG. 7 is a schematic diagram for explaining speaker output control when a microphone is connected to any of the relay devices and a voice is output from the speaker of each relay device in the relay station. FIG. 8 is a schematic diagram for explaining output control of a speaker in a relay station when a microphone is connected to any of the relay devices and sound is collectively output from the relay device to which the microphone is connected.

The example shown in FIG. 6 is control of each speaker assuming that each relay device is not used in base operation. Specifically, in the example shown in FIG. Microphone is not connected. In such a case, in the present embodiment, audio output is not performed from any speaker. As a result, the present embodiment solves the security problem.

The example shown in FIGS. 7 and 8 is a control process of each speaker assuming that the relay device is used in the base operation. In this case, the operator to be called is determined by the relay device to which the microphone is connected and the setting value of Slot Selection. Then, only the received voice from the call target operator is output to the speaker. In the example illustrated in FIGS. 7 and 8, the microphone is connected to the second relay device 110-2, and the operator C having CH3 as Home CH is a communication target.

FIG. 7 shows a method of outputting a voice at each relay device that receives voice. In the example illustrated in FIG. 7, the first relay device 110-1 receives the uplink signal of the wireless terminal 150-1 of the business operator A on CH1, and a part of the wireless terminal 150-3 of the business operator C on CH2. Receiving the first uplink signal of. The Slot Selection of the first relay device 110-1 is “2”. The second relay apparatus 110-2 receives the second uplink signal of a part of the wireless terminal 150-3 of the carrier C on CH3, and receives the uplink signal of the wireless terminal 150-4 of the carrier D on CH4. doing. The Slot Selection of the second relay device 110-2 is “1”. In this case, the speaker 130-1 of the first relay device 110-1 outputs the first voice of the first uplink signal received on CH2. Further, the speaker 130-2 of the second relay device 110-2 outputs the second voice of the second uplink signal received by CH3. That is, in the example shown in FIG. 7, only the voice of the business operator C, which is the call target of the second relay device 110-2, is output from the speaker.

FIG. 8 shows a method of mixing and outputting the sound of the uplink signal received by each relay device from the speaker of the relay device to which the microphone is connected. Specifically, in FIG. 8, the microphone 140 is connected to the second relay device 110-2. In the example illustrated in FIG. 8, the first relay device 110-1 receives the uplink signal of the wireless terminal 150-1 of the business operator A on CH1, and a part of the wireless terminal 150-3 of the business operator C on CH2. Receiving the first uplink signal of. The Slot Selection of the first relay device 110-1 is “2”. The second relay apparatus 110-2 receives the second uplink signal of a part of the wireless terminal 150-3 of the carrier C on CH3, and receives the uplink signal of the wireless terminal 150-4 of the carrier D on CH4. doing. The Slot Selection of the second relay device 110-2 is “1”. In the example illustrated in FIG. 8, the first relay device 110-1 transmits the received first uplink signal to the second relay device 110-2 of the relay station 100. In this case, in the second relay device 110-2, the first voice of the first uplink signal and the second voice of the second uplink signal are mixed and output from the speaker 130-2. Although FIG. 8 shows a case where the voices of two relay devices are mixed, the present invention is not limited to these.

In the present embodiment, when the microphone is connected to any of the relay devices in relay device 110, either of the processes shown in FIGS. 7 and 8 may be executed.

Next, details of processing of the wireless communication system 10 according to the present embodiment will be described with reference to FIGS. 9 to 16.

FIG. 9 to FIG. 11 show a sequence diagram in which the output control of the speaker is triggered by the physical connection and disconnection of the microphone with respect to the second relay device 110-2.

FIG. 9 is a process in which, when the physical connection of the microphone is detected by the second relay device 110-2, the received voice from the operator having the second relay device 110-2 as Home CH is the output target of the speaker. It is a sequence diagram showing.

First, the second relay device 110-2 detects that the microphone is connected (step S11). Next, the second relay device 110-2 refers to the setting value of its own Slot Selection (step S12). Then, the second relay device 110-2 recognizes whether the home CH of the speaker output control target operator is CH3 or CH4 (step S13). Here, in step S13, the home CH of the operator is assumed to be CH3. Therefore, in step S13, the second relay device 110-2 recognizes that the home CH of the operator is CH3.

Next, the second relay device 110-2 notifies the other relay device 110 in the relay station 100 that the microphone connection has been turned on in Home CH3 by the speaker output setting notification (step S14).

Then, each of the other relay devices recognizes that the microphone connection has been turned ON in Home CH3 (step S15). After that, in the communication performed by the business operator whose Home CH is CH3 via the second relay device 110-2, sound is output from the speaker 130-2 of the second relay device 110-2.

Next, the wireless terminal 150 of the operator whose Home CH is CH3 starts a call on the first relay apparatus 110-1 (step S16). Since CH3 of the second relay device 110-2 is in communication, this wireless terminal 150 indicates that a voice call is to be performed by using another CH notified by the system (trunk out).

Next, the first relay device 110-1 determines whether or not the voice of the received uplink signal may be output from the speaker (step S17).

In the example shown in FIG. 9, it is determined that speaker output is possible, and the first relay device 110-1 outputs sound from the speaker 130-1 (step S18). Then, the process of FIG. 9 ends. In addition, when mixing and outputting a sound, the 1st relay apparatus 110-1 outputs the received uplink signal to the 2nd relay apparatus 110-2, and the speaker 130 of the 2nd relay apparatus 110-2. -2 may output the sound of the first relay device 110-1.

Next, with reference to FIG. 10, processing different from that in FIG. 9 will be described. FIG. 10 is a sequence diagram showing a process when the wireless terminal 150 of the operator whose Home CH is not CH3 starts a call.

Since steps S21 to S25 are the same as steps S11 to S15 shown in FIG. 9, description thereof will be omitted.

Next, the wireless terminal 150 whose normal connection destination is the first relay device 110-1 starts a call on the first relay device 110-1 (step S26).

Next, the first relay device 110-1 determines whether or not the voice of the received uplink signal may be output from the speaker (step S27).

In the example shown in FIG. 10, it is determined that the speaker output is not possible because it is the business operator that CH3 is the Home CH that is permitted to output the voice from the speaker in the first relay device 110-1. 110-1 does not output sound from the speaker 130-1 (step S28). Then, the processing of FIG. 10 ends.

FIG. 11 is a process of stopping the output of the speaker of the reception voice from the operator having the second relay device 110-2 as Home CH when the second relay device 110-2 detects the physical disconnection of the microphone. It is a sequence diagram showing.

First, a call is started from the wireless terminal of the operator to the first relay device 110-1 (step S31). Then, the first relay device 110-1 starts outputting the received voice from the speaker 130-1 (step S32).

Next, the second relay device 110-2 detects physical disconnection of the microphone (step S33). Next, the second relay device 110-2 refers to the setting value of its own Slot Selection (step S34). Then, the second relay device 110-2 recognizes whether the home CH of the speaker output control target operator is CH3 or CH4 (step S35). Here, in step S35, the second relay device 110-2 recognizes that the home CH of the operator is CH3.

Next, the second relay device 110-2 notifies the other relay device 110 in the relay station 100 that the microphone connection has been turned off in Home CH3 by the speaker output setting notification (step S36).

Next, each of the other relay devices recognizes that the microphone connection has been turned off in Home CH3 (step S37).

Then, at the same time as step S37, the first relay device 110-1 stops the output of the received voice from the speaker 130-1 (step S38). Then, the processing of FIG. 11 ends.

Next, a process of controlling the output of the speaker triggered by an operation from the wireless terminal will be described with reference to FIGS. 12 to 15. In this case as well, although it is described that the output of the speaker is controlled, it may be determined whether or not the audio data of the signal received by the relay device is decoded.

A process of constantly setting the output of the speaker will be described with reference to FIGS. 12 and 13.

A process of always prohibiting the output of the speaker will be described with reference to FIG. FIG. 12 is a sequence diagram showing a process in which the wireless terminal of the operator whose Home CH is CH3 always prohibits the speaker output from the operator of the received voice from the operator by the relay device.

First, the wireless terminal sets Home CH information and “speaker output prohibition” in the speaker output setting change request, and transmits the request to the first relay device 110-1 (step S41).

Next, the first relay device 110-1 excludes the received voice on the Home CH3 from the speaker output target (Disable) (step S42). That is, the first relay device 110-1 prohibits output of the received voice on the Home CH3 from the speaker. Next, the first relay device 110-1 notifies the other relay devices 110 in the relay station 100 that the received voice on the Home CH3 has been excluded from the speaker output targets by the speaker output setting change request ( Step S43).

Next, each relay device 110 recognizes that the received voice on Home CH3 has been excluded from the speaker output target (step S44).

Next, a call is started from the wireless terminal of the carrier whose Home CH is CH3 to the first relay device 110-1 (step S45).

Next, the first relay device 110-1 determines whether or not the voice of the received uplink signal may be output from the speaker (step S46).

In the example shown in FIG. 12, it is determined that the speaker cannot be output, and the first relay device 110-1 does not output the sound from the speaker 130-1 (step S47). Then, the processing of FIG. 12 ends.

Next, with reference to FIG. 13, a process of always permitting the speaker output will be described. FIG. 13 is a sequence diagram showing a process in which the wireless terminal of the business operator whose Home CH is CH3 allows the relay device to output the voice received from its own business operator to the speaker.

First, the wireless terminal sets Home CH information and “speaker output permission” in the speaker output setting change request, and transmits the request to the first relay device 110-1 (step S51).

Next, the first relay device 110-1 recognizes that the speaker output of the received voice on the Home CH3 is permitted (Enable) (step S52). Next, the first relay device 110-1 notifies the other relay device 110 in the relay station 100 that the speaker output of the received voice on the Home CH3 is permitted by the speaker output change request (step S53). ).

Next, each relay device recognizes that the speaker output of the received voice on Home CH3 is permitted (step S54).

Next, a call is started from the wireless terminal of the operator whose Home CH is CH3 to the first relay device 110-1 (step S55).

Next, the first relay device 110-1 determines whether or not the voice of the received uplink signal may be output from the speaker (step S56). Of course, it is determined that the signal is an uplink signal from the wireless terminal 150 of another operator.

In the example shown in FIG. 13, the speaker output is determined to be valid, and the first relay device 110-1 outputs the sound from the speaker 130-1 (step S57).

Further, as shown in FIG. 13, when the second relay device 110-2 starts a call from another wireless terminal 150 (step S58), whether or not voice output is possible (step S59) is performed. If the terminal 150 is the same operator as the wireless terminal 150 with which the call was started in step S55, the voice is output from the speaker, and if it is a different operator from the wireless terminal 150 with which the call is started in step S55, the voice is output from the speaker. Is not output. Then, the processing of FIG. 13 ends.

Next, a process of temporarily setting (temporary setting) the output of the speaker will be described with reference to FIGS. 14 and 15. In FIGS. 14 and 15, speaker output control is performed only for the call for which a call request has been made.

FIG. 14 is a sequence diagram showing a process of prohibiting the speaker output of the received voice of the wireless terminal of the business operator whose Home CH is CH3 in the link procedure at the start of the call only for the call.

First, the wireless terminal sets Home CH information and "prohibit speaker output" in the call request (Call Request), and transmits the information to the first relay device 110-1 (step S61).

Next, the first relay device 110-1 temporarily removes the received voice of the operator whose Home CH is CH3 from the speaker output target (Disable) (step S62). That is, the first relay device 110-1 temporarily prohibits the Home CH from outputting the reception voice of the operator of CH3 from the speaker 130-1. In the process of FIG. 14, the first relay device 110-1 does not send the speaker output setting change request to another relay device 110 in the relay station 100.

Next, the first relay device 110-1 transmits a permission request for the call request to the wireless terminal (step S63). As a result, a link is established between the wireless terminal and the first relay device.

Next, a call is started from the wireless terminal of the operator to the first relay device 110-1 (step S64).

Next, the first relay device 110-1 determines whether or not the voice of the received uplink signal may be output from the speaker (step S65).

In the example shown in FIG. 14, it is determined that the speaker cannot be output, and the first relay device 110-1 does not output the sound from the speaker 130-1 (step S66).

Then, the call ends between the wireless terminal and the first relay device 110-1 (step S67). Next, at the timing when the call is terminated between the wireless terminal and the first relay device 110-1, the first relay device 110-1 cancels the temporary prohibition of the speaker output of the received voice on the Home CH3. (Step S68). Then, the processing of FIG. 14 ends.

FIG. 15 is a sequence diagram showing a process of allowing a wireless terminal of a carrier whose Home CH is CH3 to output the received voice of itself to a speaker in a relay device in a link procedure at the time of starting a call only for the call. ..

First, the wireless terminal sets Home CH information and “speaker output permission” in the call request (Call Request), and transmits the information to the first relay device 110-1 (step S71).

Next, the first relay device 110-1 temporarily permits the speaker output of the received voice on the Home CH3 (Enable) (step S72). In the process of FIG. 15, the first relay device 110-1 does not transmit the speaker output setting notification to the other relay devices 110 in the relay station 100.

Next, the first relay device 110-1 transmits a permission response to the call request to the wireless terminal (step S73). As a result, a link is established between the wireless terminal and the first relay device.

Then, a call is started from the wireless terminal of the operator to the first relay device 110-1 (step S74).

Next, the first relay device 110-1 determines whether or not the voice of the received uplink signal may be output from the speaker (step S75).

In the example shown in FIG. 15, it is determined that speaker output is possible, and the first relay device 110-1 outputs sound from the speaker 130-1 (step S76).

Then, the call ends between the wireless terminal and the first relay device 110-1 (step S77). Next, at the timing when the call is terminated between the wireless terminal and the first relay device 110-1, the first relay device 110-1 cancels the temporary permission of the speaker output of the received voice on the Home CH3. (Step S78). Then, the processing of FIG. 15 ends.

A process in which each relay device that configures the relay station 100 notifies the wireless terminal of the setting state of the speaker will be described with reference to FIG. 16. FIG. 16 is a sequence diagram illustrating an example of processing in which each relay device notifies the wireless terminal of the setting state of the speaker.

First, the first relay apparatus 110-1 transmits the speaker output setting state of Home CH1 and Home CH2 recognized by the first relay apparatus 110-1 to the wireless terminal as the speaker setting state (step S81). Next, the second relay device 110-2 transmits the speaker output setting state of Home CH3 and 4 recognized by the second relay device 110-2 to the wireless terminal as the speaker setting state (step S82). Then, the nth relay apparatus 110-n transmits the speaker output setting state of the Home CHs 2n-1 and 2n recognized by the nth relay apparatus 110-n to the wireless terminal as the speaker setting state (step S83). ..

In the example illustrated in FIG. 16, each relay device periodically notifies the speaker setting state at a T second cycle. For example, after T seconds of step S81, the first relay device 110-1 transmits the speaker output setting state of Home CH1 and Home CH2 recognized by the first relay device 110-1 to the wireless terminal as the speaker setting state. Yes (step S84). Next, the second relay device 110-2 transmits the speaker output setting state of Home CH3 and 4 recognized by the second relay device 110-2 to the wireless terminal as the speaker setting state (step S85). Then, the nth relay apparatus 110-n transmits the speaker output setting state of the Home CHs 2n-1 and 2n recognized by the nth relay apparatus 110-n to the wireless terminal as the speaker setting state (step S86). ..

The wireless terminal refers to the information notified from each relay device, and can change the setting by a user operation if the user wants to change the setting.

Next, details of the processing of the relay device in the above sequence diagram will be described with reference to FIGS. 17 to 21.

The processing of the control unit 200 of the relay device 110 will be described with reference to FIG. FIG. 17 is a flowchart showing an example of the flow of processing when the control unit 200 detects physical connection or disconnection of a microphone.

First, the control unit 200 acquires the setting value of Slot Selection from the storage unit 111 (step S101). Next, the control unit 200 recognizes the Home CH that is the control target of the speaker output due to the microphone attachment/detachment detection (step S102).

Next, the control unit 200 determines the connection state of the microphone to its own relay device (step S103). When it is determined that the microphone is not connected (No in step S103), the control unit 200 proceeds to step S106. On the other hand, when it is determined that the microphone is connected (Yes in step S103), the control unit 200 proceeds to step S104.

In step S104, the control unit 200 detects that the microphone is connected (step S104), and proceeds to step S105. The control unit 200 sets the connection state of the microphone to ON (step S105). Then, the control unit 200 proceeds to step S108.

In step S106, the control unit 200 detects that the microphone is not connected (step S106), and proceeds to step S107. The control unit 200 sets the microphone connection state to OFF (step S107). Then, the control unit 200 proceeds to step S108.

Next, the control unit 200 transmits a speaker output setting notification to another relay device 110 (step S108). The information to be set is the target Home CH and “microphone connection” and the state of microphone connection as factors.

Next, the control unit 200 determines whether or not a voice signal from the Home CH carrier is being received (step S109). When it is not determined that the audio signal is being received (No in step S109), the control unit 200 proceeds to step S111. On the other hand, when it is determined that the signal is being received (Yes in step S109), the control unit 200 proceeds to step S110.

If the current output state of the speaker is different from the speaker output state after the notified information is reflected, the control unit 200 sets the speaker output state after the notified information is reflected. Output start processing or output stop processing is performed (step S110). Then, the control unit 200 proceeds to step S111.

The control unit 200 detects whether the connection state of the microphone has changed (step S111). The change in the connection state of the microphone means that the microphone is removed from the connected state, or the microphone is connected from the state in which the microphone is not back connected. When the connection state of the microphone has not changed (No in step S111), the process returns to step S109, and the current state of the speaker output setting notification is maintained and the waiting of the reception signal is continued. When the connection state of the microphone has changed (Yes in step S111), the process returns to step S103 and the above-described processing is executed.

The processing of the control unit 200 of the relay device 110 will be described with reference to FIG. FIG. 18 is a flowchart showing an example of the flow of processing when the control unit 200 receives a speaker output setting notification from another relay device 110.

First, the control unit 200 determines whether or not a speaker output setting notification has been received from another relay device 110 (step S201). When it is not determined that the speaker output setting notification is received (No in step S201), the control unit 200 repeats the process of step S201. On the other hand, when the control unit 200 determines that the speaker output setting notification has been received from the other relay device 110 (Yes in step S201), the control unit 200 proceeds to step S202.

Next, the control unit 200 determines whether or not the cause of transmitting the speaker output setting notification is due to the microphone connection (step S203). When it is determined that the cause is the microphone connection (Yes in step S202), the control unit 200 proceeds to step S203. On the other hand, when it is determined that the cause is not microphone connection (No in step S202), the control unit 200 proceeds to step S204. The case where the factor is not the microphone connection is, for example, a customer request. In the following description, if the factor is not the microphone connection, it is assumed to be a customer request.

In step S203, the control unit 200 compares the microphone connection state set in the speaker output setting notification with the microphone connection state in the speaker output control table, and determines whether or not there is a change in the state (step S203). ). When it is determined that the state has not changed (No in step S203), the control unit 200 proceeds to step S201 and repeats the above processing. On the other hand, when it is determined that the state has changed (Yes in step S203), the control unit 200 proceeds to step S205 and updates the microphone connection state to the notified state (step S205).

In step S204, the control unit 200 compares the state of the customer request set in the speaker output setting notification with the state of the customer request in the speaker output control table, and determines whether or not there is a change in the state (step S204). ). When it is determined that the state has not changed (No in step S204), the control unit 200 proceeds to step S201 and repeats the above processing. On the other hand, when it is determined that the state has changed (Yes in step S204), the control unit 200 proceeds to step S205 and updates the state of the customer request to the notified state (step S206).

Since step S207 and step S208 are the same as step S109 and step S110 shown in FIG. 17, description thereof will be omitted.

The processing of the control unit 200 of the relay device 110 will be described with reference to FIG. FIG. 19 is a flowchart showing an example of the flow of processing when the control unit 200 receives a speaker output setting change request from a wireless terminal.

First, the control unit 200 determines whether or not a speaker output setting change request has been received from the wireless terminal (step S301). When it is determined that the speaker output setting change request has not been received (No in step S301), the control unit 200 repeats the process of step S301. On the other hand, when the speaker output setting change request is received (Yes in step S301), the control unit 200 proceeds to step S302.

Next, the control unit 200 compares the “customer request status” set in the speaker output setting change request with the “customer request status” in the speaker output control table to determine whether or not there is a change in the status. (Step S302). When it is determined that the state has not changed (No in step S302), the control unit 200 proceeds to step S301 and executes the above-described processing. When it is determined that the state changes (Yes in step S302), the control unit 200 proceeds to step S303, and updates the notified customer request state of the target CH to the notified state (step S303).

Next, the control unit 200 transmits a speaker output setting change request to another relay device 110 (step S304). Here, the speaker output setting change request includes “Home request” as a target Home CH and information regarding the state of the customer request as a factor. Then, the control unit 200 proceeds to step S301 and executes the above-mentioned processing.

The processing of the control unit 200 of the relay device 110 will be described with reference to FIG. FIG. 20 is a flowchart showing an example of the flow of processing when the control unit 200 receives a temporary speaker output setting from a wireless terminal. The process of FIG. 20 makes it possible to perform speaker output control for the call during the procedure for establishing a link with the relay device in a normal call operation from the wireless terminal. The wireless terminal sets its own Home CH information and speaker output permission/prohibition information in the Call Request.

First, the control unit 200 sets the voice reception state to "not received" before the call from the wireless terminal is started (step S401).

Next, the control unit 200 determines whether or not the audio reception state is "unreceived" (step S402). When it is determined that the voice receiving state is “not received” (Yes in step S402), the control unit 200 proceeds to step S403. on the other hand. When it is determined that the voice receiving state is not “not received” (No in step S402), the control unit 200 proceeds to step S408.

In step S403, the control unit 200 determines whether or not a Call Request has been received from the wireless terminal (step S403). When it is determined that the Call Request has not been received (No in step S403), the control unit 200 repeats the process of step S403. On the other hand, when it is determined that the Call Request has been received (Yes in step S403), the control unit 200 proceeds to step S404.

Next, the control unit 200 stores the information of Home CH included in the Call Request in the storage unit 111 (step S404). Here, the control unit 200 stores Home CH information in the speaker output control table.

Next, the control unit 200 updates the customer request status of Home CH in the speaker output control table to the notified status (step S405).

Next, the control unit 200 returns a Call Response to the wireless terminal (step S406).

Next, the control unit 200 updates the audio reception state to "waiting for reception start" (step S407). Then, the control unit 200 proceeds to step S402.

In step S408, it is determined whether the audio reception state is "waiting for reception start" (step S408). When it is determined that the audio reception state is “waiting for reception start” (Yes in step S408), the control unit 200 proceeds to step S409. On the other hand, when it is determined that the audio reception state is not “waiting for reception start” (No in step S408), the control unit 200 proceeds to step S414. In the following description, it is assumed that the voice state is "receiving" when it is determined in step S408 that the state is not "waiting for reception start".

In step S409, the control unit 200 determines whether a voice frame has been received (step S409). When it is determined that the voice frame is not received (No in step S409), the control unit 200 repeats the process of step S409. On the other hand, when it is determined that the audio frame is received (Yes in step S409), the control unit 200 proceeds to step S410.

Next, the control unit 200 acquires the Home CH information stored in the storage unit 111 (step S410).

Next, the control unit 200 determines whether to output the Home CH sound acquired in step S410 as a speaker (step S411). When it is determined that the speaker is not output (No in step S411), the control unit 200 proceeds to step S413. On the other hand, when it is determined that the speaker output is performed (Yes in step S411), the control unit 200 proceeds to step S412 and starts the speaker output (step S412).

Next, the control unit 200 updates the audio reception state to "receiving" (step S413). Then, the control unit 200 proceeds to step S402.

In step S414, the control unit 200 determines whether or not the end of the voice frame has been detected (step S414). When it is determined that the end of the voice frame has not been detected (No in step S414), the control unit 200 repeats the process of step S414. On the other hand, when it is determined that the end of the voice frame has been detected (Yes in step S414), the control unit 200 proceeds to step S415.

Next, the control unit 200 acquires the Home CH information stored in the storage unit 111 (step S415).

Next, the control unit 200 initializes the state of the customer request for Home CH acquired in step S415 to "None" (step S416).

Next, the control unit 200 stops the speaker output (step S417). Next, the control unit 200 initializes the Home CH information stored in the storage unit 111.

Next, the control unit 200 updates the voice reception state to "not received" (step S419). Then, the control unit 200 proceeds to step S402.

The process of the control unit 200 of the relay device 110 will be described with reference to FIG. FIG. 21 is a flowchart showing an example of the flow of processing in which the control unit 200 starts or stops speaker output.

First, the control unit 200 determines whether or not the own relay device is receiving a voice signal from the target Home CH wireless terminal (step S501). When it is determined that the audio signal is not received (No in step S501), the control unit 200 ends the process of FIG. On the other hand, when the control unit 200 determines that the audio signal is being received (Yes in step S501), the control unit 200 proceeds to step S502.

Next, the control unit 200 determines whether to output the speaker (step S502). When it is determined that the speaker output is performed (Yes in step S502), the control unit 200 proceeds to step S503. On the other hand, when it is determined that the speaker is not output (No in step S502), the control unit 200 proceeds to step S505.

In step S503, the control unit 200 determines whether or not the current speaker state is Close (step S503). When it is determined that the state of the speaker is Close (Yes in step S503), the control unit 200 proceeds to step S504 and starts speaker output (step S504). Then, the control unit 200 ends the process of FIG. On the other hand, when it is determined that the state of the speaker is Open (No in step S503), the control unit 200 ends the process of FIG.

In step S505, the control unit 200 determines whether or not the current speaker state is Close (step S505). When it is determined that the speaker state is Open (No in step S505), the control unit 200 proceeds to step S506 and stops speaker output (step S506). Then, the control unit 200 ends the process of FIG. On the other hand, when it is determined that the state of the speaker is Close (Yes in step S505), the control unit 200 ends the process of FIG.

The process of the control unit 200 of the relay device 110 will be described with reference to FIG. FIG. 22 is a flowchart showing an example of the flow of processing in which the control unit 200 determines whether or not speaker output is possible.

In FIG. 22, whether speaker output is possible or not is determined based on the speaker output control table 300 shown in FIG. Specifically, the control unit 200 refers to the speaker output control table 300 and determines whether or not speaker output is possible based on the determination table 400 illustrated in FIG.

First, the control unit 200 refers to the speaker output control table 300 based on the information of the target Home CH (step S601).

Next, the control unit 200 determines whether the customer status (temporary) is "Enable" (step S602). When it is determined that the customer state (temporary) is “Enable” (Yes in step S602), the control unit 200 proceeds to step S603 and performs speaker output (step S603). Then, the control unit 200 ends the process of FIG. On the other hand, when it is determined that the customer state (temporary) is not “Enable” (No in step S602), the control unit 200 proceeds to step S604.

In step S604, the control unit 200 determines whether or not the customer status (temporary) is "Disable" (step S604). When it is determined that the customer state (temporary) is “Disable” (Yes in step S604), the control unit 200 proceeds to step S605 and does not execute speaker output (step S605). Then, the control unit 200 ends the process of FIG. When it is determined that the customer state (temporary) is "None" for one step (No in step S604), the control unit 200 proceeds to step S606.

In step S606, the control unit 200 determines whether the customer status (always) is "Enable" (step S606). When it is determined that the customer state (always) is “Enable” (Yes in step S606), the control unit 200 proceeds to step S607 and performs speaker output (step S607). Then, the control unit 200 ends the process of FIG. On the other hand, when it is determined that the customer state (always) is not “Enable” (No in step S606), the control unit 200 proceeds to step S608.

In step S608, the control unit 200 determines whether or not the customer state (always) is "Disable" (step S608). When it is determined that the customer state (always) is “Disable” (Yes in step S608), the control unit 200 proceeds to step S609 and does not execute speaker output (step S609). Then, the control unit 200 ends the process of FIG. On the other hand, when it is determined that the customer state (always) is “None”, the control unit 200 proceeds to step S610.

In step S610, the control unit 200 determines whether or not the connection state of the microphone is "On" (step S610), and when it is determined that the connection state of the microphone is "On" (Yes in step S610). ), the control unit 200 proceeds to step S611 and performs speaker output (step S611). Then, the control unit 200 ends the process of FIG. On the other hand, when it is determined that the microphone connection state is “Off” (No in step S610), the control unit 200 proceeds to step S612 and does not execute speaker output (step S612). Then, the control unit 200 ends the process of FIG.

As described above, in the present embodiment, when the microphone is not connected to any of the relay devices forming the relay station, the sound of the uplink signal received by each relay device from the wireless terminal is not output. As a result, the present embodiment can prevent a relay station shared by a plurality of businesses from intercepting the voices of other businesses. As a result, this embodiment can improve the security at the relay station.

In the present embodiment, when a microphone is connected to an arbitrary relay station among the relay apparatuses that form the relay station, a voice is output from a wireless terminal whose normal connection destination is the relay apparatus to which the microphone is connected. can do. In addition, in the present embodiment, the relay device to which the microphone is connected transmits the information indicating that the microphone is connected to the other relay device, so that the microphone is also connected to the other relay device. It is possible to output a voice from a wireless terminal to which the relay device is normally connected. As a result, according to the present embodiment, it is possible to stop the output of the voice of the wireless terminal other than the wireless terminal to which the relay device to which the microphone is connected is normally connected. As a result, in the present embodiment, it is possible to listen only to the communication of its own business operator, and thus it is possible to further improve security.

Further, as described above, the relay device of the relay station in the present embodiment not only controls the audio output of the relay device of the normal connection destination by any of the wireless terminals configuring the wireless system, but also other relay devices. With respect to the above, it is possible to control the audio output when an uplink signal from the same operator is received. As a result, in the present embodiment, since it is possible to listen only to the communication of the own business operator, it is possible to further improve the convenience.

Although the embodiments of the present invention have been described above, the embodiments are not limited by the contents of these embodiments. Further, the components described above include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those within the so-called equivalent range. Furthermore, the components described above can be combined appropriately. Furthermore, various omissions, replacements, or changes of the constituent elements can be made without departing from the scope of the above-described embodiment.

10 wireless communication system 100 relay station 110 relay device 110-1 first relay device 110-2 second relay device 110-n nth relay device 130-1, 130-2, 130-n speaker 140 microphone 150, 150-1 , 150-2, 150-3, 150-4 Wireless terminal 111, 151 Storage unit 112 Microphone input terminal 152 Voice input unit 113, 153 Voice output unit 115, 154 Operation unit 116, 155 Display unit 117 Inter-relay device communication unit 114 , 156 wireless communication unit 160, 200 control unit 161, 220 microphone input control unit 162, 230 voice output control unit 163, 250 operation control unit 164, 260 display control unit 165, 240 wireless communication control unit 210 microphone attachment/detachment detection unit 270 relay Inter-device communication control unit 300 Speaker output control table 400 Judgment table

Claims (6)

A first relay device to which the wireless terminal of the first operator normally connects,
Includes another relay device to which other wireless terminals normally connect,
The first relay device,
When it is detected that a microphone is connected to the first relay device, it enables transmission of a voice signal to the wireless terminal of the first operator, and the first relay device or the other relay device is When an uplink signal is received from the wireless terminal of the first business operator, a control unit that enables voice output of voice corresponding to the received uplink signal is provided.
Relay station. The communication method between the wireless terminals via the relay station is a TDMA (Time Division Multiple Access) method having a plurality of time slots,
The normal connection destination of the wireless terminal of the first operator is a predetermined time slot of the first relay device, when the microphone is connected to the first relay device,
The control unit enables transmission of a voice signal to the wireless terminal of the first operator at the predetermined time slot, and which time slot of the first relay device or any time slot of the other relay device. Enables the voice output of the voice corresponding to the received uplink signal when the uplink signal is received from the wireless terminal of the first operator.
The relay station according to claim 1. The control unit disables the audio output when it is detected that the microphone is removed after the microphone is connected,
The relay station according to claim 1 or 2. In the control unit, the first relay device receives a first uplink signal from one wireless terminal of the first operator, and the other relay device receives a second uplink signal from another wireless terminal of the first operator. When an uplink signal is received, a first voice corresponding to the first uplink signal and a second voice corresponding to the second uplink signal are mixed to enable voice output.
The relay station according to any one of claims 1 to 3. A relay device,
A relay device to which the wireless terminal normally connects is defined for each business operator,
The relay device is
A microphone attachment/detachment detection unit that detects whether or not a microphone is connected,
When the microphone attachment/detachment detection unit detects that a microphone is connected, it enables transmission of an audio signal to a wireless terminal to which the relay device is a normal connection destination, and the relay device transmits the audio signal from the wireless terminal. When an audio signal corresponding to the uplink signal is output when an uplink signal is received, and a relay device to which another operator normally connects is receiving an uplink signal from the wireless terminal. A voice output control unit that gives an instruction to enable voice output of voice corresponding to the uplink signal,
A relay device. A relay method for a relay station that includes a first relay device that is normally connected to a wireless terminal of a first operator and another relay device that is normally connected to another wireless terminal of another operator. hand,
Detecting the connection of the microphone to the first relay device,
A step of enabling transmission of an audio signal to the wireless terminal of the first operator when connection of the microphone is detected,
The first relay device or the other relay device, when receiving an uplink signal from the wireless terminal of the first operator, enabling the voice output of the voice corresponding to the uplink signal,
Relay method including.

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